2024-03-29T01:59:37Z
https://jurnal.ugm.ac.id/teknosains/oai
oai:jurnal.ugm.ac.id:article/3985
2016-07-26T04:14:18Z
teknosains:ART
nmb a2200000Iu 4500
"111222 2011 eng "
2443-1311
2089-6131
dc
THERMAL CHANGES OBSERVED AT DRILLING SITE DURING BONE DRILLING Model study in bovine rib
Kusuma, Dedy
Department of Biomedical, Faculty of Dentistry
Gadjah Mada University, Yogyakarta, Indonesia
The use of bone drill in the process of odontectomy and preparation of dental implant may increase temperature around drilling hole. As thermal changes are the critical precursor to physiological bone healing, increased of temperature over threshold must be minimized. The aim of this model study was to compare the temperature changes that were generated during bone drilling with various speeds. Eighteen fresh bovine ribs were chosen due to the similarity of physical properties and dimension of human mandible. A constant drill load of 4.06N was applied throughout the drilling procedures via a drilling rig. Bovine ribs were drilled by using the same bur geometry (twist drill, 120 point angle) at low speed (8.750 rpm, 21.875 rpm, 35.000 rpm). The bone temperature changes generated by the drilling process were measured measured by K-type thermocouple. The speed of 8750 rpm produced a maximum temperature changes in both distance of 1 mm and 2 mm from drilling hole. Minimal temperature changes were recorded for the speed of 35.000 rpm. ANOVA test, showed the mean of thermal changes for each of speed at distance 1 and 2 mm from drilling hole. The clinical benefits of using speed below 35000 rpm need to be considered due to the potential risk of thermal damage.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/3985
Jurnal Teknosains; Vol 1, No 1 (2011): December
eng
Copyright (c) 2014 Dedy Kusuma
oai:jurnal.ugm.ac.id:article/3986
2016-07-26T04:14:18Z
teknosains:ART
nmb a2200000Iu 4500
"111222 2011 eng "
2443-1311
2089-6131
dc
PIPELINE PROGRAM CDM DI INDONESIA: SEBUAH PELUANG DAN TANTANGAN UNTUK INDUSTRI PERTAMBANGAN
Adiansyah, Joni Safaat
Fakultas Teknik Program Studi Pertambangan Universitas Muhammadiyah Mataram
Climate change is one of the world’s problems that must be dealt; the failure in tackling climate change will impact on increasing the earth temperature and endanger the archipelago countries including Indonesia. Clean Development Mechanism (CDM) is one of the Kyoto Protocol mechanisms designed to mitigate climate change. Indonesia is one of the countries that meets the requirement as the host of CDM program and has set up the target to reduce GHG emissions as much as 26 percent in year 2020. The industrial sector has opportunities to engage actively in reducing GHG emission including mining industry. The objectives of this research are to find out the potency of mining company’s involvement in climate change mitigation efforts particularly through CDM. In addition, the research of method that is chosen is literature study including reviewing data relating to CDM and with qualitative approached. The result shows that mining industry has a potency to involve actively in CDM program, among others, through energy efficiency, fuel substitution, renewable energy, Coal Bed Methane and the handling of critical lands through afforestation and reforestation scheme. Furthermore, by using Business as Usual assumption, the linier regression that is produced y=27.255.x + 12.711 therefore It is estimated that about 15 Mt CO2-e (assuming 4 percent reduction) needs to be derived from the energy sector in 2020 that can be taken as an opportunity for the mining industry as well.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/3986
Jurnal Teknosains; Vol 1, No 1 (2011): December
eng
Copyright (c) 2014 Joni Safaat Adiansyah
oai:jurnal.ugm.ac.id:article/3987
2016-07-26T04:14:18Z
teknosains:ART
nmb a2200000Iu 4500
"111222 2011 eng "
2443-1311
2089-6131
dc
PENGARUH KONSENTRASI ASAM ASETAT DAN WAKTU EKSTRAKSI TERHADAP MUTU KOLAGEN KULIT NILA HITAMPENGARUH KONSENTRASI ASAM ASETAT DAN WAKTU EKSTRAKSI TERHADAP MUTU KOLAGEN KULIT NILA HITAM
Sahubawa, Latif
Staf Pengajar Jurusan Perikanan Fakultas Pertanian Universitas Gadjah MadaStaf Pengajar Jurusan Perikanan Fakultas Pertanian Universitas Gadjah Mada
Putra, A.B. Naro
Staf Pengajar Jurusan Perikanan Fakultas Pertanian Universitas Gadjah MadaStaf Pengajar Jurusan Perikanan Fakultas Pertanian Universitas Gadjah Mada
The objective of the research was studied the effect of acetic acid concentration and extraction time on the collagen quality of black tilapia leather. Black tilapia leather processed into collagen as an alternative to increasing value-added of fisheries industry waste. Collagen of black tilapia was extracted by the treatment of acetic acid molarity, each: 0.25 M, 0.50 M, and 0.75 M (A factor) and extraction time of 16 and 48 hours (B factor). Based on the analysis of variance, is known that the interaction of those treatments (AB) didn’t significantly effect on the yield (p>0.05). Collagen extraction of tilapia leather with 0.75 M of acetic acid at 16 hours, produces the greatest yield (5.97%), with denaturation temperature is 35.75oC, and quantitative composition of glisine, alanine, and glutamic amino acids were: 5395.82 ppm (52.99%), 2979.15 ppm (22.08%), and 1684.42 ppm (7.45%). Based on the analysis of SDS-PAGE, is known that the collagen contained were α component and β component, so that collagen of tilapia leather has type I collagen.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/3987
Jurnal Teknosains; Vol 1, No 1 (2011): December
eng
Copyright (c) 2014 Latif Sahubawa, A.B. Naro Putra
oai:jurnal.ugm.ac.id:article/3988
2016-07-26T04:14:18Z
teknosains:ART
nmb a2200000Iu 4500
"111222 2011 eng "
2443-1311
2089-6131
dc
KAJIAN METODE DETEKSI DEGRADASI HUTAN MENGGUNAKAN CITRA SATELIT LANDSAT DI HUTAN LAHAN KERING TAMAN NASIONAL HALIMUN SALAK
Nugroho, Sigit
Staf Ditjen Planologi Kehutanan Kementerian Kehutanan
Jaya, I Nengah Surati
Staf Pengajar di Institut Pertanian Bogor Kampus Darmaga
Saleh, M. Buce
Staf Pengajar di Institut Pertanian Bogor Kampus Darmaga
Wijanarto, Antonius B
Staf Pengajar Bakosurtanal Cibinong Bogor
The study examined detection method of forest degradation using forest canopy density (FCD), maximum likelihood, fuzzy and belief dempster shafer classification method. Accuracy evaluation of classification and detection were based on overall accuracy which obtained from 51 ground sample plot. Canopy density, LAI, crown indicator, trees density and basal area (Lbds) were conducted as field indicators. Accuracy of classification among forest density (trees/Ha) with four classification methods were FCD 61%, maximum likelihood 57%, fuzzy 51% and belief dempster shafer 49%. Based on temporal detection accuracy from 2003 until 2008, FCD had overall accuracy 68 %. The result of research, FCD is the best method to detect of forest degradation.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/3988
Jurnal Teknosains; Vol 1, No 1 (2011): December
eng
Copyright (c) 2014 Sigit Nugroho, I Nengah Surati Jaya, M. Buce Saleh, Antonius B Wijanarto
oai:jurnal.ugm.ac.id:article/3989
2017-08-28T02:32:29Z
teknosains:ART
nmb a2200000Iu 4500
"111222 2011 eng "
2443-1311
2089-6131
dc
EFEK APLIKASI SERICIN PADA HIDROKSIAPATIT TERHADAP PERLEKATAN SEL OSTEOBLAS
Sunarintyas, Siti
Minat Studi Rekayasa Biomedis Sekolah Pascasarjana
Universitas Gadjah Mada
Yustisia, Yeni
Minat Studi Rekayasa Biomedis Sekolah Pascasarjana. Universitas Gadjah Mada
Tontowi, Alva Edy
Jurusan Teknik Mesin dan Industri Fakultas Teknik. Universitas Gadjah Mada
Array
Hydroxyapatite (HA) is often used as a human bone graft. Modification of HA surface is developed to increase osseointegration process which is influenced by cells attachment surrounded the tissue. Sericin has polar side groups which accelerate cells attachment. The aim of this research was to determine the effect of sericin application over HA surface on the attachment of osteoblast cells. The research used HA synthesized from gypsum (Kulon Progo, Yogyakarta). Sericin was extracted from silkworm cocoons of Bombyx mori. Sericin of 0.01, 0.05, 0.1% were applied over HA discs surface (10 mm in diameter, 3 mm thick). The discs were inserted into osteoblast cells culture of MC3T3E1 for attachment test. The data were analyzed by ANOVA and LSD. The result showed that the amount of osteoblast cells attached to HA (7.60±0.42) was significantly difference (p<0.05) with HA + sericin 0.01% (10.30±0.52), HA + sericin 0.5% (10.63±0.70), HA + sericin 0.1% (10.67±0.87). Variation of sericin concentrations applied over HA did not influence any significant difference on the amount of cells attachment (p>0.05). In conclusion, sericin application over HA surface increased the amount of osteoblast cells attachment. Concentrations of sericin application over HA (0.01, 0.05, 0.1%) did not influence osteoblast cells attachment.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/3989
Jurnal Teknosains; Vol 1, No 1 (2011): December
eng
Copyright (c) 2014 Siti Sunarintyas
oai:jurnal.ugm.ac.id:article/3990
2016-07-26T04:14:18Z
teknosains:ART
nmb a2200000Iu 4500
"111222 2011 eng "
2443-1311
2089-6131
dc
KONSERVASI MATA AIR BERBASIS MASYARAKAT DI UNIT FISIOGRAFI PEGUNUNGAN BATURAGUNG, LEDOK WONOSARI DAN PERBUKITAN KARST GUNUNG SEWU, KABUPATEN GUNUNGKIDUL
Sudarmadji, Sudarmadji
Pengelola Program Studi Ilmu Lingkungan Sekolah Pascasarjana
Universitas Gadjah Mada
Suprayogi, Slamet
Fakultas Geografi Universitas Gadjah Mada
Widyastuti, M.
Fakultas Geografi Universitas Gadjah Mada
Harini, Rika
Fakultas Geografi Universitas Gadjah Mada
Spring is as one of the water resources potential that can not be ignored. Gunungkidul district has three physiographic units: Baturagung Hills, Wonosari Basin and Gunung Sewu Karst Hills. All of them affect the distribution of springs in the Gunungkidul Regency. On the other hand, physiography will affect the community adaptation to the environment. It will contribute to the springs conservation effort. The purposes of this research are: 1) to identify the characteristics of springs, 2) to analyze the community participation in conserving the springs as basic information to develop spring conservation models. To identify the socio-economic characteristics and the springs characteristics in the research areas use a survey method. Unit sampling and analysis is done purposively based on three zones: Baturagung Hills, Wonosari Basin and Gunung Sewu Karst Hills. Socio-economic survey was done by sampling on the 90 respondents, divided into 3 zones through direct interviews using quetionare. Quantitative descriptive analysis was performed through statistical tests. The results show that the quality of spring water in all physiographic zones meet to the water quality standard, except those for colli bacteria. The discharge of karst springs in the hills of Gunung Sewu greater than the discharge of the two other zones. The springs distribution is more in Wonosari Basin and Karst Hills of Gunung Sewu than Baturagung Hills. The level of the community participation in springs conservation is mostly done in groups through user spring groups. Generally, socio-economic factors affect to the level of participation in prevention of springs damage.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/3990
Jurnal Teknosains; Vol 1, No 1 (2011): December
eng
Copyright (c) 2014 Sudarmadji Sudarmadji, Slamet Suprayogi, M. Widyastuti, Rika Harini
oai:jurnal.ugm.ac.id:article/3991
2016-07-26T04:14:18Z
teknosains:ART
nmb a2200000Iu 4500
"111222 2011 eng "
2443-1311
2089-6131
dc
ANALISIS POTENSI ENERGI DI DESA WUKIRSARI KECAMATAN IMOGIRI KABUPATEN BANTUL PROPINSI DAERAH ISTIMEWA YOGYAKARTA
Nur Giyatno, Dhanis Woro Fittrin Selo
Mahasiswa Jurusan Teknik Fisika Fakultas Teknik Universitas Gadjah Mada
Dengkeng, Kobango, Giriloyo, and Nogosari II are places in the Wukirsari village which experience water scarcity. Water supply system (WSS) is proposed to fulfill water for 1,088 persons. The WSS need energy for pumping amount 88.47 kWh per day. Based on Atmospheric Data Science’s datas, obtained that the average of wind velocity in Imogiri is 4.20 meters/second and 50.00 meters in height above the sea level. The standard of wind velocity to build wind power generation is must more than 3.00 meter/second so enable to design in another turbine height. By region coefficient (α) 0.30, is obtained turbine height alternative 18.17 - 50.00 meters in range. By varied wind velocity base on that range obtained wind velocity average amount 3.70 meters/second and 32.17 - 33.17 meters in height range. Based on WSS’s lifetime and wind specific mass, obtained power per wide unit 21.06 W/m2 and energy 0.02 kWh/m2 each day.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/3991
Jurnal Teknosains; Vol 1, No 1 (2011): December
eng
Copyright (c) 2014 Dhanis Woro Fittrin Selo Nur Giyatno
oai:jurnal.ugm.ac.id:article/3992
2017-08-28T02:32:29Z
teknosains:BR
nmb a2200000Iu 4500
"111222 2011 eng "
2443-1311
2089-6131
dc
MENUMBUHKAN NADI BARU
Ana, Ika Dewi
Staf Pengajar Bagian Biomedika Kedokteran gigi Universitas Gadjah Mada dan Peneliti Rekayasa Jaringan
Array
Pada tahun 1997, dunia dikejutkan oleh suatu film dokumenter dalam program Tomorrow`s World serial BBC. Di dalam tayangan BBC menyiarkan tentang Vacanti Mouse, seekor tikus dengan daun telinga yang tumbuh di punggungnya. Sekalipun penelitian aslinya (seperti yang diakui oleh kelompok Cao dan Vacanti) yang berlangsung di laboratorium MIT (Massachussets Institute of Technology) tidak se-spektakuler seperti tayangan BBC, sejak saat itu istilah rekayasa jaringan (tissue engineering) menjadi istilah yang dikenal oleh jutaan masyarakat dunia. Harapan manusia akan adanya The Body Shop (yang setiap waktu dapat menyediakan organ tubuh pengganti) menuai titik terang.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/3992
Jurnal Teknosains; Vol 1, No 1 (2011): December
eng
Copyright (c) 2014 Ika Dewi Ana
oai:jurnal.ugm.ac.id:article/5125
2017-08-30T07:55:51Z
teknosains:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
2089-6131
dc
ECONOMIC EVALUATION OF POWER WAVES AT THE BEACH TEGAL
Soebyakto, Soebyakto
Pancasakti University http://soebyakto.blogspot.com
Array
Observations of electric power of the waves hitting beach Tegal is obtained by finding the value of the speed, frequency and height of the waves on the beach Tegal. The average value of the wave velocity of 0.15 m/s, the average frequency of 0.17 Hz and a maximum height of 0.6 m on average. This data is still too low to generate electrical power from the mechanical power of the waves. We are still conducting research to increase the speed and height of the waves with a method of "Tapered Channel". This method is expected to raise the value of the wave height of 0.5 m to 2.2 m. Waves of electrical power is estimated to rise to 15.4 Watt/m2 25-50 Watt/m2.In economic calculation, the power of the waves starting from the value of the wave power per m2 per 4 m2. If we need a 100 Watt power of the waves, the beach area that required 4 m2. Economic development beach with waves generate electrical power, built outside the port area, so that the fishermen keep doing the fishing business as it should be. Based on the results of research in theory, the power of the waves is the speed of the wave function that describes the linear curve. However, the results of research that has been done show that the power of the waves is a function of the speed of the waves, which described as a hyperbolic curve. Wave power increases with increasing speed of the waves. While the formulation used is the wave velocity is a function of the height of the waves. By using the method of "Tepered Channel" to catch a wave, the wave speed will be higher. The results of economic research to generate electrical waves can be calculated byeconomic aspects of the compute power of the waves and technological aspects by counting the frequency of the waves
Universitas Gadjah Mada
2017-08-30 14:58:36
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5125
Jurnal Teknosains; Vol 6, No 1 (2016): December
eng
https://jurnal.ugm.ac.id/teknosains/article/download/5125/8652
Copyright (c) 2017 Soebyakto bin Soekardi
oai:jurnal.ugm.ac.id:article/5341
2017-08-29T07:19:32Z
teknosains:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
2089-6131
dc
Putra, Randi Mulyana
Fahrurroji, Andhi
Wijianto, Bambang
Prevention of diseases caused by bacteria can be carried out with the use of antibacterial soap. The use of antibacterial soaps derived from natural one is to plant a red ginger (Zingiber officinale Rosc. var rubrum) which proved to have antibacterial activity. Therefore, preparations to make it more acceptable liquid soap containing antibacterial compounds 6-shogaol, gingerol, and zingiberen from red ginger plant. Simplex Lattice Design is a method which to find a good formula of dosage from. The study aims to determine the optimum formulation liquid soap ethanolic extract of red ginger rhizome using the method of Simplex Lattice Design. Simplex Lattice Design Methods used to optimize the formulation of liquid soap with five formulas with variations in the amount of olive oil and potassium hydroxide (KOH), FI (0%:100%), FII (25%:75%), FIII (50%:50%), FIV (75%:25%), FV (100%:0%). Evaluation of liquid soap ethanol extract of red ginger rhizome (Zingiber officinale Rosc. var rubrum) include an examination viscosity, pH, and free alkali. Physical stability was analized to find higher total response value (R total) as parameter of the optimum formula by Simplex Lattice Design Methods with Design Expert software version 8.0.7.1. Optimum formula liquid soap ethanolic extract of red ginger rhizome with the proportion of variation base olive oil 98,1%(27,167 g) and potassium hydroxide (KOH) 1,9%(3,99 g). Data obtained physical characteristics test compared with prediction value using Design Expert software version 8.0.7.1. The result showed that physical properties of liquid soap formula optimum didn’t different significantly for easy response.
Universitas Gadjah Mada
2017-08-30 14:46:22
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5341
Jurnal Teknosains; Vol 5, No 2 (2016): June
ind
Copyright (c) 2017 Randi Mulyana Putra
oai:jurnal.ugm.ac.id:article/5880
2015-03-05T05:02:18Z
teknosains:ART
nmb a2200000Iu 4500
"120622 2012 eng "
2443-1311
2089-6131
dc
PEMANFAATAN CITRA IKONOS UNTUK IDENTIFIKASI OBJEK PAJAK BUMI DAN BANGUNAN
Lestari, Wiji
Pengelolaan Infrastruktur dan Pembangunan Masyarakat
Sekolah Pascasarjana Universitas Gajah Mada
Ikonos satellite image is an image that has a high spatial resolution with pixel accuracy of one meter for panchromatic
and four-meter multispectral. Spesifkasi IKONOS imagery provides the ability to record an object one meter.
Therefore the use of Ikonos imagery to identify objects and buildings Land Tax (PBB) is dimungkinkan.Untuk
determine the ability of Ikonos imagery in the identification of objects Land and Building Tax (PBB) conducted
research that aims to determine the accuracy of the interpretation of Ikonos imagery for identification of objects
UN, UN to map objects based on Ikonos imagery interpretation, field survey and evaluate the results of Block
Maps uses map image interpretation Ikonos.Penelitian geografi.Pengumpulan using descriptive methods of data
is done through the interpretation of Ikonos imagery, field tests, interviews and documentation. Data analysis is
the analysis of the level of image interpretation, analysis and map overlay analysis. The results showed that the
level of interpretation of Ikonos imagery for identification of objects and the United Nations is 89.54% commission
error is 10.46%. Results from a block map using Ikonos imagery interpretation of evaluation results have not yet
registered 269 objects in the map of Block UN tax. Can be concluded that the Ikonos imagery can be used as the
primary data source for identification of objects.
Key words: Ikonos image, image interpretation, object identification, remote sensing, object of property tax.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5880
Jurnal Teknosains; Vol 1, No 2 (2012): June
eng
Copyright (c) 2014 Wiji Lestari
oai:jurnal.ugm.ac.id:article/5881
2015-03-05T05:02:18Z
teknosains:ART
nmb a2200000Iu 4500
"110622 2011 eng "
2443-1311
2089-6131
dc
EKSPLORASI KEANEKARAGAMAN HERPETOFAUNNA DI KECAMATAN GIRIMULYO KABUPATEN KULON PROGO YOGYAKARTA
Qurniawan, Tony Febri
Laboratorium Taksonomi Hewan Fakultas Biologi
Universitas Gadjah Mada
The research was aimed to reveal and document hereptofauna from Girimulyo District Kulon Progo Regency,
Daerah Istimewa Yogyakarta Province. This research was done from November-Desember 2008 and January-
April 2009 in four research locations were Girimulyo, Jatimulyo, Giripurwo and Purwosari. The VES (Visual
Encounter Survey) method were used and combined with interview method.. A total of 40 species of herpetofauna
are indentified and includes in to 13 family. Among 40 species, only one (Michrohyla achatina) is endemic to Java.
The commonest herpetofaunas along all site were Eutropis multifasciata and Hylarana chalconota.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5881
Jurnal Teknosains; Vol 1, No 2 (2012): June
eng
Copyright (c) 2014 Tony Febri Qurniawan
oai:jurnal.ugm.ac.id:article/5974
2015-03-05T05:02:18Z
teknosains:ART
nmb a2200000Iu 4500
"120622 2012 eng "
2443-1311
2089-6131
dc
EQUITABLE ACCESS TO HEALTH SERVICE IN BANYUWANGI
Mark Zuidgeest, Lusi Herawati Sunyoto Usman
Management of Infrastructure and Community Development
Graduate School Gadjah Mada University and Officer in
Local Government of Banyuwangi regency
Equitable health care is a basic right for citizens and must be fulfilled by the government. This research analyzed community
discrepancy in access to reach health services in public hospitals and Puskesmas (health centers) in Banyuwangi Regency.
This research identified community accessibility to health facilities services using travel time and transport modes choice
as indicators. Flowmap tool is used to analyze catchment area of each health facility using different transport modes choice:becak and public transport for poor group and motorcycle and car for non-poor group with different travel time within 30, 60 and more than 60 minutes. It is concluded that there was an accessibility difference between poor and non-poor group. The accessibility to the health facilities of poor group was lower than non-poor group. This condition occurred because the government policy of equitable access to health service facility did not pay attention to accessibility of poor group.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5974
Jurnal Teknosains; Vol 1, No 2 (2012): June
eng
Copyright (c) 2014 Lusi Herawati Sunyoto Usman Mark Zuidgeest
oai:jurnal.ugm.ac.id:article/5976
2015-03-05T05:02:18Z
teknosains:ART
nmb a2200000Iu 4500
"120622 2012 eng "
2443-1311
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dc
EFFECT OF AIR JET COOLING ON SURFACE ROUGHNESS AND TOOL WEAR
dan Tony S. Utomo, Paryanto Rusnaldy
Department of Mechanical Engineering, Diponegoro University
The main goal of this work is to investigate the use of air jet cooling on machining process. Surface roughness
and tool are chosen as parameter to analyze of air jet cooling effects; and turning process with AISI 1010 material
used in the experimental study. Surface roughness was measured for several air jet pressures and in two air jet
positions. Every five minutes of machining time, tool wear was measured until reach 30 minutes. Initial results
show that the use of air jet cooling with proper selection of position and pressure; possible to reduce tool wear and
to increase surface roughness.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5976
Jurnal Teknosains; Vol 1, No 2 (2012): June
eng
Copyright (c) 2014 Paryanto Rusnaldy dan Tony S. Utomo
oai:jurnal.ugm.ac.id:article/5977
2015-03-05T05:02:18Z
teknosains:ART
nmb a2200000Iu 4500
"120622 2012 eng "
2443-1311
2089-6131
dc
A SUSTAINABLE SUPPLY CHAIN MODEL OF RELATIONSHIP BETWEEN WOOD SUPPLIER AND FURNITURE INDUSTRY IN INDONESIA
and Shalihuddin Djalal Tandjung, Muh. Hisjam Adi Djoko Guritno
Department of Industrial Engineering, Faculty of Engineering Sebelas Maret University
Wooden furniture industry is an important industry sector in Indonesia, because many people’s welfare rely
on this industry sector and the industry has a big social and environmental impacts. Many wooden furniture
industries in Indonesia, especially in Central Java Province face problems related to the sustainability. The relation
between wood suppliers and furniture industry is studied in this paper. A sustainable supply chain management (s-SCM) model is proposed as an approach for solutions for the problems. The approach is chosen due to the characteristics of the problems that related to economic, social, and environmental problems. This aim of this paper is to determine how much supply teak wood must be provided by PP to satisfy furniture industry demand, how much production capacity that must be increased and how large forest area that must be planted in order to achieve environmental and social goals without sacrificing economical goals much. Goal programming (GP) is chosen for solving the problems, because the goals are to maximize the total benefit,minimize the total loss and anticipate the conflicts between goals. Numerical trial based on observation in teak wooden furniture industry in Central Java was used to illustrate our findings. Using pareto efficient principle, the model can satisfy all goals that need to be achieved. Numerical results can be used by decision makers in teak wood industry to analyze the trade-off among several set of alternative solutions.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5977
Jurnal Teknosains; Vol 1, No 2 (2012): June
eng
Copyright (c) 2014 Muh. Hisjam Adi Djoko Guritno and Shalihuddin Djalal Tandjung
oai:jurnal.ugm.ac.id:article/5978
2015-03-05T05:02:18Z
teknosains:ART
nmb a2200000Iu 4500
"120622 2012 eng "
2443-1311
2089-6131
dc
SCAFFOLD DARI BOVINE HYDROXYAPATITE DENGAN POLY VYNIALCHOHOL COATING
Endang Tri Wahyuni, dan Joko Triyono, Alva Edy Tontowi, Punto Dewo,
Program Studi Rekayasa Biomedik Sekolah Pascasarjana Universitas Gadjah Mada
In Indonesia, it is about 40% patients with hard tissue defect due to ostheoporosis, cancer or accidents and the
rest are defect since they have born.For many years, efforts for recovering have been done by transplantation or
implantation methods.Transplantation is more appropriate butit is not sustain because of limited donor, while
implantation using synthetic materials such as bioceramics scaffoldis expensive due to import and the scaffold is
easier to break which does not match to the medical requirements.The research therefore has been addressed to this
issue. Local bovine hydroxyapatite (bHA)scaffold has been used as thebase material and poly vynilalchohol (PVA)
as a coating material.The bHA scaffold was prepared by cutting a fresh bovine bone in the size of 5mmx5mmx5mm
and boil it in a distilled water to remove its organic material. It was then heated up at 900 oC for 2 hours in
furnace to obtain bovine hydroxyapatite scaffold (bHA). Coating process has been carried out by dip coating of the
bHAscaffold in PVA solution.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5978
Jurnal Teknosains; Vol 1, No 2 (2012): June
eng
Copyright (c) 2014 Alva Edy Tontowi, Punto Dewo, Endang Tri Wahyuni, dan Joko Triyono
oai:jurnal.ugm.ac.id:article/5979
2017-08-28T02:32:22Z
teknosains:BR
nmb a2200000Iu 4500
"120622 2012 eng "
2443-1311
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BERMULA DARI MIMPI MEWUJUDKAN INOVASI
Herliansyah, M.K.
Jurusan Teknik Mesin dan Industri, Fakultas
Teknik, Universitas Gadjah Mada dan Peneliti Produk Bioceramics Untuk Aplikasi Biomedis
Array
Kemakmuran suatu bangsa tergantung pada kemampuannya memanfaatkan sumbersumber
alam dan mengembangkan serta memproduksi suatu produk. Bahkan kemampuan
mengembangkan serta memproduksi suatu produk merupakan komponen terpenting
penentu tingkat kemakmuran ekonomi suatu bangsa. Bukti-bukti telah menunjukkan banyak
bangsa-bangsa di dunia yang miskin sumber alam, tetapi memiliki tingkat kemakmuran
yang tinggi karena keunggulannya dalam kemampuan mengembangkan serta memproduksi
produk-produk baru dan unggul.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5979
Jurnal Teknosains; Vol 1, No 2 (2012): June
eng
Copyright (c) 2014 M.K. Herliansyah
oai:jurnal.ugm.ac.id:article/5980
2015-03-05T05:07:07Z
teknosains:ART
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IDENTIFIKASI EFEK DEPRESAN SSP (SUSUNAN SARAF PUSAT) ANTIKEJANG DAN NEUROTOKSISITAS SENYAWA 4-KLOROBENZOILTIOUREA PADA MENCIT PUTIH JANTAN
dan Dini Kesuma, Aguslina kirtishanti
Fakultas Farmasi Universitas Surabaya
The study on the development of benzoylthiourea derivatives as central nervous system (CNS) depressants was based on their structure, which contains acyclic ureide, an isosteric group of CNS depressant drugs common structure. The study was carried out by modifying the structure of benzoylthiourea using the Topliss model based on the enhancement of its lipophilic and electronic properties. It is predicted that the product will give higher activity than the parent compound. In this study, identification of CNS depressant, anticonvulsant and neurotoxicity effects of the compound synthesized, i.e. 4-chlorobenzoylthiourea, was conducted. The identification of CNS depressant effects was done using Barbiturate Sleeping Time, the identification of anticonvulsant effects was done using Maximum Electroshock Seizure and the identification of neurotoxicity effect was done using rotarod in mice (Mus musculus). This study used five groups of mice: a control group, a standard group (Phenobarbital Na) and 3 treatment groups with doses of 15 mg/kg, 45 mg/kg and 75 mg/kg respectively. From the results, it can be concluded that 4-chlorobenzoylthiourea gives the best CNS depressant, anticonvulsant and neurotoxicity effects at the doses of 75 mg/kg, 15 mg/kg and 45 mg/kg respectively.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5980
Jurnal Teknosains; Vol 2, No 1 (2012): December
eng
Copyright (c) 2014 Aguslina kirtishanti dan Dini Kesuma
oai:jurnal.ugm.ac.id:article/5981
2015-03-05T05:07:07Z
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PROSES PENGELOLAHAN MENINGKATKAN AKTIVITAS HIPOLIPIDEMIK JAMUR TIRAM (PLEUROTUS OSTREATUS) PADA TIKUS (RATTUS NORVEGICUS) SPRGUE-DAWLEY HIPERKOLESTEROL
Sri Anggrahini dan Sutikarini, Eni Harmayani, Deera Army Pramana,
Program Studi Bioteknologi
Sekolah Pascasarjana Universitas Gadjah Mada
Array
Oyster mushroom is considered to have hypocholesterolemic and hypolipidemic activities. Therefore, it is classified
as functional food. Prior to serving and consumption, oyster mushroom can be processed in various ways. This
research studied the effect of three kinds of processing commonly used in cooking oyster mushroom; boiling,
frying, and roasting. Thirty Sprague-Dawley male rats, 8 weeks old, were acclimated to laboratory condition,
and then induced with high lipid diet. The rats were divided into five experiment groups; high-lipid diet (K),
high-lipid diet + raw oyster mushroom (M), high-lipid diet + fried oyster mushroom (G), high-lipid diet + roasted
oyster mushroom (P), and high-lipid diet + boiled oyster mushroom (R). Blood samples were obtained from orbital
plexus after acclimation, hypercholesterolemic induction, and 21 days of feeding. The blood serum was examined
for total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-c), dan high-density
lipoprotein cholesterol (HDL-c). The result showed that cooked oyster mushroom had better hypocholesterolemic
and hypolipidemic activity than raw oyster mushroom. Among the three, the roasted oyster mushroom reduced the
total cholesterol the most, while boiled oyster mushroom reduced triglyceride the most.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5981
Jurnal Teknosains; Vol 2, No 1 (2012): December
eng
Copyright (c) 2014 Eni Harmayani, Deera Army Pramana, Sri Anggrahini dan Sutikarini
oai:jurnal.ugm.ac.id:article/5982
2015-03-05T05:07:07Z
teknosains:ART
nmb a2200000Iu 4500
"121222 2012 eng "
2443-1311
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ANALISIS DAN PROFIL TINGKAT KEBUGARAN MAHASISWA JURUSAN TEKNIK MESIN DAN INDUSTRI UNIVERSITAS GADJAH MADA YOGYAKARTA
dan Chusla Rosdiana Dewi, Herianto
Jurusan Teknik Mesin dan Industri Fakultas Teknik Universitas Gadjah Mada
Array
Aerobic fitness can be used as a health indicator. The purpose of this study is to investigate the effect of Body Mass Index,
gender, and physical activity on the aerobic fitness. Twenty females and 27 males students in range of 20 ± 1.2 years
old, height 164 ± 8.95 cm, and weight 58.23 ± 9.5 kg that meet inclusion criteria were used as subject that measured
in Ergonomics Laboratory Gadjah Mada University within room temperature 25-26oC and 40-50% in humidity.
Four methods of indirect measurement (VO2max as an output) is used to measure aerobic fitness: nonexercise skinfold
measurements and Body Mass Index, Astrand bicycle, treadmill, and the fitness index Harvard Step Test performed on
different days. The results showed that gender (rs = 0.838 on the nonexercise BMI) and BMI (rs = -0.677 on the Astrand
method) effect on aerobic fitness. The average value of VO2max (ml.kg-1.min in-1) is achieved from each method. For
male, Astrand bicycle = 53.24 ± 7.82, treadmill = 38.43 ± 9, 05, BMI = 44.85 ± 3.45, 42.49 ± 3.38 = skinfold. For
women, Astrand bicycle = 47.86 ± 8.59, ± 5.73 treadmill = 34.1, BMI = 34.25 ± 2.46, 34.63 ± 2.51 = skinfold.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5982
Jurnal Teknosains; Vol 2, No 1 (2012): December
eng
Copyright (c) 2014 Herianto dan Chusla Rosdiana Dewi
oai:jurnal.ugm.ac.id:article/5986
2015-03-05T05:07:07Z
teknosains:ART
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"120622 2012 eng "
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KAJIAN PENCEMARAN LINGKUNGAN DI TAMBAK UDANG DELTA MAHAKAM
Eko Sugiharto, Salahuddin, Chafid Fandeli, dan
Program Studi Ilmu Lingkungan Universitas Gadjah Mada
Array
well-managed, it will contribute to the improvement of both regional and national economy. However, Mahakam
River gets liquid waste pollution that has significant impact on water quality and results in conflicts between
the local societies, especially the shrimp pond farmers and the fishermen and the oil and gas industrial company.
This research uses descriptive-comparative analysis with ANOVA test to compare samples (water, soil/sediment,
shrimp, and mangrove) of the shrimp fishpond (many mangrove, moderate mangrove, few mangrove, and without
any mangrove). The pollution load which is analyzed includes: cadmium content (Cd), lead (Pb), oil and grease (O
& G), mercury (Hg), and arsenic (As). The significance level is 90% with error of 5% (0.05).
The water of Mahakam Delta is still in the normality limit as seen from the maximum pollution load in the Decree
of the Minister of Living Environment No. 51 of 2004 on Ocean Water Standard seen from chemical, physical,
and biological parameters. The presence of mangrove contributes positive value to the balance of the quality of the
waters and to the neutralizing of heavy metals contents of Mahakam Delta as shown in the average difference in
the Pb, Cd, O & G, As and Hg of the samples of water, soils/sediment, shrimp and mangrove which are drawn
from the of shrimp pond with many mangrove, moderate mangrove, few mangrove and without any mangrove,
which is significantly different (p < 0.05). Shrimp pond with many mangrove has less average levels of Pb, Cd, M
& L, As and Hg compared with the pond with less and without mangrove. The shrimp pond with many mangroves
contributes significantly and positively to the prevention of the pollution of Pb, Cd, O and G, As and Hg at low level
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5986
Jurnal Teknosains; Vol 2, No 1 (2012): December
eng
Copyright (c) 2014 Salahuddin, Chafid Fandeli, dan Eko Sugiharto
oai:jurnal.ugm.ac.id:article/5987
2015-03-05T05:07:07Z
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"121222 2012 eng "
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Karakteristik Toksisitas Hidroksiapatit yang Disintesis dari Kalsit Terhadap Rattus norvegicus
Isti Rahayu Suryani, Siti Sunarintyas dan
Minat Studi Rekayasa Biomedis, Prodi Bioteknologi
Sekolah Pascasarjana Universitas Gadjah Mada
Array
The use of synthetic hydroxyapatite (HA) in biomedical application is well warranted. It has shown to have
an excellent biocompatibility in human tooth and bones. The present study was conducted to know the toxicity
characteristics of hydroxyapatite synthesized from Mojokerto calcite in Rattus norvegicus. In this study 30
Rattus norvegicus were used as experimental animals. The animals were divided into 3 groups (n=10) to be given
HA-calcite, HA-200 (Waco, Japan), and aquadest (control) orally. The animals were observed 7 days and then
were analyzed for: fatality rate and clinical behavior, hematology test, organ morphology, and histopathology
appearance. The result showed that there was not any animal death during 7 days observation. None of the animal
exhibited any noteworthy findings in clinical behavior, hematology test, organ morphology, and histopathology
appearance. In conclusion, HA-calcite did not show any acute toxicity characteristic; therefore, it was potential to
be used as an alternative material for bone substitution.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5987
Jurnal Teknosains; Vol 2, No 1 (2012): December
eng
Copyright (c) 2014 Siti Sunarintyas dan Isti Rahayu Suryani
oai:jurnal.ugm.ac.id:article/5988
2015-03-05T05:07:07Z
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SPECIES COMPOSITION OF AMPHIBIAN IN GUNUNGKELIR STREAM, JATIMULYO VILLAGE, KULON PROGO
dan Trijoko, Tony Febri Qurniawan
Laboratorium Taksonomi Hewan
Fakultas Biologi Universitas Gadjah Mada
Array
Gunungkelir stream is located in Jatimulyo village, western part of Daerah Istimewa Yogyakarta Province.
The ecosystem that surrounds Gunungkelir stream looks natural and unpolluted, it is possible for good living
environment of amphibians. However, the database about diversity of Amphibians in Gunungkelir stream has
not been revealed. This research was done to study species diversity, species richness, species composition and
distribution of amphibians in Gunungkelir stream as an effort to support the sustainability of amphibians live
from extinction. The research was done on January-May 2009, at night. The VES (Visual Encounter Survey)
method with line transects 250 m were used. A total 11 species of amphibians from 6 different amphibia families
were identified. Phrynoidis aspera, Leptobrachium hasseltii and Hylarana chalconota are dominant species. The
higest percentage of amphibians population was tadpole (38%), followed by male (35%), female (21%), and the
least were juvenile (6%). During the survey, different species of amphibians were observed with their own range
of spatial distribution.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5988
Jurnal Teknosains; Vol 2, No 1 (2012): December
eng
Copyright (c) 2014 Tony Febri Qurniawan dan Trijoko
oai:jurnal.ugm.ac.id:article/5989
2015-03-05T05:02:18Z
teknosains:ART
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"120622 2012 eng "
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PENGARUH TEKANAN PISTON PADA PENGATURAN KATUP SOLENOID PROPORSIONAL DUA ARAH TERHADAP LAJU ALIRAN AIR PADA SISTEM KALIBRASI PISTON PROVER OT-400
Prakosa, Jalu Ahmad
Pusat Penelitian Kalibrasi, Instrumentasi dan Metrologi (KIM) LIPI
Array
In order to use piston prover OT-400 calibrator more effective is to know the relationship between pressure piston and water flow rate. Water flow rate measurement by using piston pressure variation and setting of proportional directional solenoid valve has been done on piston prover OT-400 calibration sytems. Selection variation of piston pressure condition has been done at four measuring points there are 20 PSI, 42.5 PSI, 62.5 PSI and 80 PSI. Giving of voltage variation for ascending and declining to the solenoid is to set the opening and closing its valve. From the measurement results obtained that the water flow rate is proportional to the piston pressure used. Graph of water flow rate (Q) with unit of liters / minute versus the piston pressure (P) with unit of PSI within the setting of
proportional directional solenoid valve on the piston prover OT-400 calibrator has linear type that is Q = 0.002. P + 0.151 with R2=0,998. While the graph of the average uncertainty value of the measuring point versus pressure piston is not a linear form with the smallest value of 2.31% on the use of piston pressure of 80 PSI
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5989
Jurnal Teknosains; Vol 1, No 2 (2012): June
eng
Copyright (c) 2014 Jalu Ahmad Prakosa
oai:jurnal.ugm.ac.id:article/5990
2015-03-05T05:07:07Z
teknosains:ART
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"121222 2012 eng "
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ANALISIS INTANGIBLE FACTORS YANG MEMPENGARUHI PENENTUAN HARGA PRODUK KARYA SENI
Lestariningsih, Kusriniarti Dwi
Fakultas Teknik Universitas Gadjah Mada
Array
This research aims to develop a new quantitative method to determine painting pricing based on 10 intangible factors, i.e. curator, amount of exhibition, painter’s year of birth, painting’s years of made, auction record,
estimation price, exhibition place, painting media, painting size, and previous sales record. The selling price data are obtained from six auction houses. Kano Model and Linear Regression Model are used to examine the relation
between pricing and each variable. Based on the model development scheme, there are 6 alternative models that can be obtained. Each model then was evaluated by cross-validation procedure using 21 data. Based on the value of R2for each model, the Kano Model with variable previous sales is the best model with R2 of 70%
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5990
Jurnal Teknosains; Vol 2, No 1 (2012): December
eng
Copyright (c) 2014 Kusriniarti Dwi Lestariningsih
oai:jurnal.ugm.ac.id:article/5992
2017-08-28T02:32:09Z
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"121222 2012 eng "
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Janeway’s Immunobiology
Soesatyo, Marsetyawan HNE
Fakultas Kedokteran Universitas Gadjah Mada
Array
Buku teks imunologi sudah cukup banyak beredar di tanah air. Buku-buku tersebut
menguraikan tentang sistem dan mekanisme pertahanan tubuh dalam interaksinya dengan
lingkungan di luar tubuh yang penuh akan mikroba dan patogen penyebab infeksi.
Pengetahuan imunologi tubuh manusia terus berkembang dengan cepat, luas, dan mendasar.
Hal ini disebabkan karena dukungan pengetahuan lain yang terkait, baik aspek teoritis
maupun teknik-teknik laboratoris canggih yang menyentuh aras selular dan molekular.
Kemudian memunculkan temuan-temuan baru yang spektakuler, bahkan tidak jarang
dengan bukti terbaru telah menggugurkan teori-teori lama. Setiap makluk hidup, khususnya
mammalia termasuk manusia, sudah dilengkapi dengan sistem pertahanan tubuh sejak lahir,
bahkan komponen-komponen penyusun dalam sistem imun tersebut sebagian sudah ada dan
disiapkan sejak kehidupan intra-uterin. Imunitas seperti ini masuk dalam ranah ‘alamiah’
atau ‘innate’, sementara imunitas tubuh yang terus berkembang mulai lahir sampai dewasa
dipengaruhi langsung oleh lingkungan sekelilingnya. Imunitas yang didapat ini termasuk
dalam ranah ‘adaptif’
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5992
Jurnal Teknosains; Vol 2, No 1 (2012): December
eng
Copyright (c) 2014 Marsetyawan HNE Soesatyo
oai:jurnal.ugm.ac.id:article/5998
2015-03-10T07:02:53Z
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"130622 2013 eng "
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HUBUNGAN ANTARA INDEKS VEGETASI NDVI (NORMALIZED DIFFERENCE VEGETATION INDEX) DAN KOEFISIEN RESESI BASEFLOW PADA BEBERAPA SUBDAS PROPINSI JAWA TENGAH DAN DAERAH ISTIMEWA YOGYAKARTA
Latuamury, Bokiraiya
Fakultas Geografi Universitas Gadjah Mada
Array
The background of this research is the decrease of environment capacity in cacthment ecosystem, especially impact of vegetation forest on behavior streamflow. The indicators of cacthment destruction can be seen through hydrograph characteristics. Evaluation of cactment respons of flow hydrographic as an evaluation tools of river catchment responses becomes very important to analyze because it is a benchmark in determination several policy about flood, drough, sedimentation and landslide handling. The research purpose is to analyze the relationship between vegetation index NDVI (Normalized Difference Vegetation Index) and the characteristic of baseflow recession coefficient at several subcatchment areas in province of Central Java and Specific District of Yogjakarta.
The method of this research is surveillance on data recording of AWLR (Automatic Water Level Recorder) and data of River Flow Measuring Stations in order to separate the baseflow by calibration curve, and image interpretation of Landsat ETM+ for the transformation of vegetation index (NDVI-Normalized Difference Vegetation Index).
The analysis on recession coefficient data (Krb) and NDVI were correlated to analyze the strength of relationship between these two parameters. The results of statistical analysis on index NDVI and recession coefficient shows
that NDVI and recession coefficient value at R2 is 0.1427, F = 2.17 which is not significant at 1% significance level of 0.1646. The result shows a very weak correlation of 0.077 which mean that vegetation density (NDVI index)
has a very weak control on low flows. Basically, river baseflow is a genetic component of river flow which comes from aquifer storage and/or other low flow sources. Thus, geology and soil have a significant effect on baseflow.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5998
Jurnal Teknosains; Vol 2, No 2 (2013): June
eng
Copyright (c) 2014 Bokiraiya Latuamury
oai:jurnal.ugm.ac.id:article/5999
2015-03-10T07:02:53Z
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APLIKASI KOAGULAN ALAMI DARI TEPUNG JAGUNG DALAM PENGOLAHAN AIR BERSIH
Prihatinningtyas, Eka
Pusat Penelitian Limnologi LIPI
Array
Maize can be used as natural coagulant in water treatment process.The aim of this research was find the optimum condition on water treatment using natural coagulant from maize. Maize extract made by dissolving 5 grams of maize into 100 ml NaCl. The solution separated by centrifugation. The supernatant named extract of maize. Extract of maize loaded onto column packed with Amberlite and produced ionic maize.The active components are carboxyl, hydroxyl and amides groups. Ionic maize yield better turbidity removal than extract of maize. Coagulation withh high initial turbidity gave high efficiency of turbidity removal than low turbidity. Coagulation process runs efficiently at pH 5 because at that point the isoelectric point was obtained. The flowrate less than 0.03 m/ min, the alum will provide the efficiency of suspended solids removal greater than extract of maize. While the over flowrate higher than 0.03 m / min, settling velocity of kaolin using alum and extract of maize are the same.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/5999
Jurnal Teknosains; Vol 2, No 2 (2013): June
eng
Copyright (c) 2014 Eka Prihatinningtyas
oai:jurnal.ugm.ac.id:article/6000
2015-03-10T07:02:53Z
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"130622 2013 eng "
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PENGARUH KATALIS BASA (NaOH) PADA TAHAP REAKSI TRANSESTERIFIKASI TERHADAP KUALITAS BIOFUEL DARI MINYAK TEPUNG IKAN SARDIN
Ningtyas, Diah Probo
Jurusan Perikanan Fakultas Pertanian UGM
Array
Biofuel is an alternative diesel engine fuel is produced from oils/fats of plants and animals (including the fisheries industry waste) through the esterification and transesterifiksi reactions. A transesterification is reaction to form esters and glycerol from trigliserin (fat/oil) and bioalcohol (methanol or ethanol). Transesterification is an equilibrium reaction so that the presence of a catalyst can accelerate the achievement of a state of equilibrium. Process of the transesterification reaction of sardine flour oil waste with NaOH as base catalyst in producing biofuels was conducted.
The research purpose has studied the influence of NaOH concentration in transesterification process and examinate its effect on the quality of biofuels production, conversion, and physic quality. The variables that analysed was the effect of NaOH concentration as catalyst (0.5%, 1.0%, 1.5%, and 2.0% from amount of oil and methanol) in the transesterification reaction step. The result showed that the increasing NaOH concentration (0.5 - 1.5%), enhanced the biofuel conversion (%). The highest conversion of biofuels was achieved by using 1.50% NaOH (w/w) with 45.34% biofuels conversion. The major component in the biofuels was methyl palmitate (20.31%). ASTM analysis data also supported that the biofuel product was in agreement with automotive diesel fuel specification.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6000
Jurnal Teknosains; Vol 2, No 2 (2013): June
eng
Copyright (c) 2014 Diah Probo Ningtyas
oai:jurnal.ugm.ac.id:article/6001
2015-03-10T07:02:53Z
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dc
PENGEMBANGAN MATERIAL PASAK ENDODONTIK Ti/40HA DENGAN MENGGUNAKAN KONSEP FUNCTIONALLY GRADIENT MATERIAL
Herliansyah, M. K.
Jurusan Teknik Mesin dan Industri Fakultas Teknik Universitas Gadjah Mada
Array
Commercial endodontic pegs have a homogeneous composition and strength so that the transmission voltage of pegs to dentin often result in damage to the tooth root. The concept of functionally gradient material (FGM) is expected to overcome these problems by adjusting the mechanical properties of each peg to the nature of the teeth. This study aims to develop a material stake with the concept of FGM from Ti/40HA material that is composed of five layers with concentrations of HA from 0% - 40% wt through the process of uni-axial pressing followed by sintering at 1200oC and 1400oC in argon gas. Then performed on each layer characterization by SEM / EDX, the optimum sintering temperature was determined by test-t (p <0,05). Morphological Testing showed that the composite of Ti/40HA still porous, while EDX shows the composition of Ca and P increase as an indication of increment in the concentration of HA as the decrement in concentration of the layer-1 (100% Ti) up to layer-5 (60% Ti-40% HA). In conclusion, Ti/40HA200 and Ti/40HA200 composite materials can be produced by decreasing its roughness as the rising concentrations of HA in each section.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6001
Jurnal Teknosains; Vol 2, No 2 (2013): June
eng
Copyright (c) 2014 M. K. Herliansyah
oai:jurnal.ugm.ac.id:article/6002
2015-03-10T07:02:53Z
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"130622 2013 eng "
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MANAJEMEN RISIKO TSUNAMI UNTUK PENATAAN RUANG DI PESISIR PERKOTAAN PACITAN JAWA TIMUR
Probosiwi, Ratih
Balai Besar Penelitian dan Pengembangan Pelayanan Kesejahteraan Sosial (B2P3KS)
Yogyakarta- Kementerian Sosial R.I.
Array
The process of tsunami risk management through the use of disaster information is the important things to carry out by government of region with high potential tsunami hazard such as urban areas of Pacitan. Assessment of tsunami risk begins from hazard assessment, vulnerability and capacity assessment will provide appropriate information and also support decision making processes in order to reduce risk and loss that might arise when the disaster actually occurs. The policies of tsunami risk reduction could be done by spatial planning policy to regulate and control land usage in The Urban Pacitan. This article describes how the tsunami risk management for spatial
planning done by the Pacitan Government.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6002
Jurnal Teknosains; Vol 2, No 2 (2013): June
eng
Copyright (c) 2014 Ratih Probosiwi
oai:jurnal.ugm.ac.id:article/6003
2015-03-10T07:02:53Z
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KAJIAN PENGARUH KONSENTRASI Rhizopus sp. SEBAGAI AGEN PENGIKIS PROTEIN TERHADAP MUTU KULIT IKAN GURAMI TERSAMAK
Hayati, Ratri Nur
Jurusan Perikanan Fakultas Pertanian Universitas Gadjah Mada
Array
The study aimed to assess the effect of protease activity of Rhizopus sp. as a bating agent on the tanned carp leather quality, and their use for commercial leather products. The study was designed with a completely randomized design with four treatment, namely: the concentration of protease from Rhizopus sp. 0.5% (a1), 1.0% (a2), 1.5% (a3) and palkobat 1.0% (a4/control) with 3 replications. Parameters were observed that is (1) protease activity of Rhizopus sp and palcobat; (2) Thickness (mm), tensile strength (N/cm2), tear strength (N/cm), elongation (%), enervation (mm), shrinkage temperature (ºC), fat/oil content (%) of tanned leather; and (3) level of consumer acceptance (%) and added valuead of comercial leather product. The data of tanned leather quality is then compared with SNI 06-4586-1998 concenring freshwater snake skin leather and chrome Burk’s Bay (1996) on the raw material quality leather products. The test results of protease activity of Rhizopus sp. = 7.97 mg/50mg/ jam and palkobat = 13.62 mg/50 mg/hour. The results of the analysis of tanned leather carp qulity sample from each treatment and comparison with the SNI as follows: (1) Thickness: 0.41 (a1), 0.38 (a2), 0.43 (a3), 0.41mm (a4) and ≥ 0.22 (SNI 06-4586-1998). Tensile strength: 1682.67; 1818.17; 1195.57; 1670.55 and 1,000N/cm2 (SNI). Tear strength: 314.87; 310.95; 332.06; 462.22, and 150.00 N/cm (SNI). Elongation: 93.33; 62.67; 56.67; 97.33, and <30.00% (SNI). Enervation: 1.87; 2.20; 1.63, 2.49, and ≥ 2.0 mm (Burk’s Bay, 1996). Shrinkage temperature: 74.00; 95.33; 96.33; 97.33, and ≥ 70.33ºC (SNI). The fat/oil content: 7.84; 8.17; 5.25; 8.49, and 2.00 to 6.00% (SNI). All treatments were tested has met the SNI quality, except elongation and fat/oil content. The level of consumer acceptance of the Oval HP Cover that is (1) aspects of the display (76.67% like and 23.33% dislike), (2) the use of convenience (66.67% like and 33.33% dislike ), and (3) price (63.33% accepted and 23.67 reject). The level of consumer acceptance of the Box Cover HP models that is (1) aspects of the display (80.00% like and 20.00% dislike), (2) convenience of use (86.67% like and 13.33% dislike), and (3) price (66.67% accepted and 33.33% reject). The economic value of tanned carp leather as big as Rp 160.000/20 leather pieces and leather products as big as Rp 420,000 per 15 pieces of product.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6003
Jurnal Teknosains; Vol 2, No 2 (2013): June
eng
Copyright (c) 2014 Ratri Nur Hayati
oai:jurnal.ugm.ac.id:article/6004
2015-03-10T07:02:53Z
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"130622 2013 eng "
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Analisis Pengaruh Bentuk Telapak Kaki Terhadap Kelelahan Fisik
Herianto, Herianto
Jurusan Teknik Mesin dan Industri Fakultas Teknik Universitas Gadjah Mada
Array
Physical activity over time can cause fatigue during exercise such as walking or light running. Physical fatigue effects on heart rate and blood pressure. Factors that can cause fatigue are gender, cardiovascular disease status, sport exercise habits, BMI (Body Mass Index) and study activities during a week. Physical fatigue also could be caused by factors shape of your foot, especially the form of flat feet/pesplanus in type 1, 2or 3. Subjects of this research were students of Industrial Engineering Gadjah Mada University ages 19 to 23 years with the aim of sampling techniques to the criteria of having normal or flat feet. The subjects run normally using a tread mill with a speed of 4 miles per hour for 6 minutes. The variables measured were heart rate and blood pressure. Heart rate was measured in three sessions among others before, during and after the experiment using a heart rate monitor while blood pressure was measured before and after the experiment. There are significant differences in systolic blood pressure before and after the experimental on indicator of sex, heart rate after experimental on indicator of disease status and heart rate on indicator exercise habit for normal feet. Then in the form of pesplanus foot type 1, there are significant differences like systolic and diastolic blood pressure after experimental on indicator of BMI (Body Mass Index) and systolic blood pressure on indicator of pre-experimental study activities during a week, in which a significant difference in respondents who did not have study activities of the respondents who went tocollegein6-10 hours. In the form of pesplanus foot type 2 there is a significant difference in heart rate when experimental on indicator of cardiovascular disease status.
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6004
Jurnal Teknosains; Vol 2, No 2 (2013): June
eng
Copyright (c) 2014 Herianto Herianto
oai:jurnal.ugm.ac.id:article/6006
2017-08-28T02:31:59Z
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The Routledge Handbook of Hazards and Disaster Risk Reduction
Hadmoko, Danang Sri
Fakultas Geografi Universitas Gadjah Mada
Array
Buku ini menjelaskan secara detail tentang ancaman bencana yang ada, berupa ancaman bencana geofisik, ancaman bencana hidro-meterologis, ancaman bencana biologis/ekologis, dan ancaman bencana astronomis
Universitas Gadjah Mada
2014-03-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6006
Jurnal Teknosains; Vol 2, No 2 (2013): June
eng
Copyright (c) 2014 Danang Sri Hadmoko
oai:jurnal.ugm.ac.id:article/6020
2017-02-07T04:37:14Z
teknosains:ART
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"140622 2014 eng "
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PENETUAN ALE DAN AE LARVA LEPIDIOTA STIGMA F PADA TANAMAN TEBU
Witjaksono, Alimin, Edhi Martono, dan
Direktorat Perlindungan Perkebunan
Direktorat Jenderal Perkebunan-Kementerian Pertanian Pusat Republik Indonesia
Array
This research was conducted to determine the value of Economic Injury Level (EIL) and Economic Threshold (ET) for the larvae of Lepidiota stigma instar 1, 2 and 3 in three different locations. The amount of larvae population and plant per m2 in the field, and the weight proportion of the vanished root or to-be-eaten by a larva were needed to determine the loss of result per m2 data on the maximum harvest outcome and the harvest outcome in the field per m2. The highest proportion value of the outcome loss per m2 based on the Walker Model, which has been modified on biological control with Nematode Entomo Patogen (NEP) Steinernema spp. combined with light trap, was in Tempel Sari, i.e. larvae instar 1 (0.0108), instar 2 (0.0174), and instar 3 (0.0221). The lowest value was in Grenjeng, i.e. larvae instar 1 (0.0048), instar 2 (0.0078), and instar 3 (0.0099). There were significant differences among the three instars, where the consumption greediness of instar 3 is higher than instar 1 and 2, so the proportion value of the outcome loss per m2 of larvae instar 3 in the respective locations was higher than that of the two other instars. Determination of EIL value based on the Bode & Calvin Models gave the highest EIL value in Grenjengwith larvae instar 1 in the amount of 15.50 with ET value 12.40, instar 2 in the amount of 9.59 with ET value 7.67, and instar 3 in the amount of 7.54 with ET value 6.03. On the other hand, the lowest EIL value was found in Tempel Sari, with larvae instar 1 in the amount of 6.97 with ET value 5.58, instar 2 in the amount of 4.31 with ET value 3.45, and instar 3 in the amount of 3.39 with ET value 2.71.
Universitas Gadjah Mada
2015-03-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6020
Jurnal Teknosains; Vol 3, No 2 (2014): June
eng
Copyright (c) 2015 Alimin, Edhi Martono, dan Witjaksono
oai:jurnal.ugm.ac.id:article/6021
2015-03-11T03:57:38Z
teknosains:ART
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"140622 2014 eng "
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PERKEMBANGAN LAYANAN TRANSPORTASI PERDESAAN PADA WILAYAH BERBUKIT
Achmad Djunaedi, Dewanti, Danang Parikesit, dan
Jurusan Teknik Sipil dan Lingkungan
Fakultas TeknikUniversitas Gadjah Mada
Array
Transport service development generally indicates some development problems and transport troubles in particular. This research analyses the development of rural transport services in Kemalang Sub-district, Klaten District, Central Java Province using qualitative research method and Case Study research approach. Primary data were collected by in-depth interviewing of 26 respondents, which was supported by secondary data from institutional survey. Transport service development was reviewed in three development stages; those are before 1990, 1990-2005 and 2005-2010. There have been alterations in the dominant transport service used during those three periods, from non-motorized private transport service to motorized public transport services, and then to private transport services of motorcycles. That development has led to positive changes in the character of transport services, such as the increase of transport service availability, flexibility and capability in solving nature’s restrictions, so that they promote mobility and accessibility. One negative change is the decrease of traffic safety.
Universitas Gadjah Mada
2015-03-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6021
Jurnal Teknosains; Vol 3, No 2 (2014): June
eng
Copyright (c) 2015 Dewanti, Danang Parikesit, dan Achmad Djunaedi
oai:jurnal.ugm.ac.id:article/6022
2015-03-11T04:07:31Z
teknosains:ART
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"140622 2014 eng "
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TEGANGAN RESIDU KEPING ARESTER SEBAGAI FUNGSI DARI CACAH KEPING ARESTER
T. Haryono, Devia Eka Yunida dan
Balai Besar Pengembangan Latihan Kerja Dalam Negeri (BBPLKDN)
Kementerian Tenaga Kerja dan Transmigrasi Bandung-Jawa Barat
Array
Indonesia is a tropical area with a high intensity of repeating lightning strikes. The voltage is produced by lightning by increasing the presence of sensitive loads. Therefore, lightning can easily worsen the quality of consumer power, even if the generated voltage is relatively low. Lightning strikes can cause excessive voltage along the power lines. Its propagation can cause a voltage surge on low voltage systems, which can damage the equipment. Maintenance and protection against lightning strikes are necessary for the prevention of such damage. Arrester is a device that is intensively used nowadays by the general public to protect equipments from lightning strikes. It is used to protect the system from the danger of lightning by flowing current into the ground and leaving a certain resistance value, so that the system does not experience a surge voltage.This research was conducted through laboratory-scale testings using several major equipments, such as a high voltage generator, an impulse voltage generator, and an oscilloscope. Modifications of the tests were done using one to four 220 volt low voltage Merlin Gerin LTD arresters arranged in series, with a maximum current of 6.5 kA . Calculations using equations for low voltage circuit in series were done for more than four arresters. From the test results, it was found that the characteristics of the arrester residual voltage will rise when connected in series. Low voltage arresters can be used for higher voltage requirements by counting the number of arresters needed. The equation for the number of arresters in series required to cut the overvoltage surge is y = 0.694x – 0.106. Therefore, if more than 4 arresters will be needed, the residue voltage can be estimated through this formula.
Universitas Gadjah Mada
2015-03-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6022
Jurnal Teknosains; Vol 3, No 2 (2014): June
eng
Copyright (c) 2015 Devia Eka Yunida dan T. Haryono
oai:jurnal.ugm.ac.id:article/6023
2015-03-11T04:22:15Z
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CONTACT ANGLE MEASUREMENT OF DENTAL RESTORATIVE MATERIALS BY DROP PROFILE IMAGE ANALYSIS
M. Rinastiti, H. D. K. Yulianto dan
Faculty of Dentistry Universitas Gadjah Mada
Array
The capability of initial microbial adhesion to dental restorative composites surface is influenced by the surface wettability of the materials. The common method to evaluate surface wettability of materials is contact angle measurement. The existing conventional method to measure contact angle is by means of a contact angle (CA)-Goniometer device, which is less practically applicable in clinical circumstances. Therefore, a more practical and applicable method is needed to measure contact angle in clinical circumstances. This research was performed to compare between contact angles measured by means of a CA-Goniometer device and a new practical method of drop profile image analysis. In addition, since there were two different formulas that can be used to calculate contact angle value from a drop profile image, then we also need to evaluate which formula is more reliable to be used. Tests were carried out using three composite discs (Clearfill-Kuraray Medical, Inc.) sample and deionised water for different measurement procedures. One drop of 3µl liquid was dropped onto the surface of the composite discs, and the drop profile image was captured by means of a customized home-made device connected to a digital camera. Two different formulas were used to calculate the contact angle value from the drop profile image, namely the “linier gradient equation” and the “tangential line”. The contact angle values obtained from the two different formulas were compared with the value obtained from the conventional method descriptively.
Tests were carried out using three composite discs (Clearfill-Kuraray Medical, Inc.) sample and deionised water for different measurement procedures. One drop of 3µl liquid was dropped onto the surface of the composite discs, and the drop profile image was captured by means of a customized home-made device connected to a digital camera. Two different formulas were used to calculate the contact angle value from the drop profile image, namely the “linier gradient equation” and the “tangential line”. The contact angle values obtained from the two different formulas were compared with the value obtained from the conventional method descriptively. The differences in percentage between the contact angle value calculated by the “linier gradient equation” and “tangential line” formulas, and those calculated by means of the CA-Goniometer are 20,56% and 3,51%, respectively. It is obviously demonstrated that the value obtained by the “tangential line” formula has a smaller difference compared to those obtained by the “linier equation gradient” formula. Among the two different formulas, it is confirmed that the contact angle value calculated with the “tangential line” formula has closer similarity with the value obtained from the CA-Goniometer. This result confirms that the new practical method of drop profile image analysis is promising for measuring contact angle values in clinical circumstances. Related to the drop profile image analysis, the “tangential line” formula is more accurate compared to the “linier gradient equation” formula.
Universitas Gadjah Mada
2015-03-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6023
Jurnal Teknosains; Vol 3, No 2 (2014): June
eng
Copyright (c) 2015 H. D. K. Yulianto dan M. Rinastiti
oai:jurnal.ugm.ac.id:article/6024
2015-03-11T04:32:21Z
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LANSKAP EKOLOGI KESERASIAN DAN KEMENARIKAN KEPARIWISATAAN ALAM DI WILAYAH YOGYAKARA UTARA
muhamad, Muhamad
Program Studi Kajian PariwisataSekolah Pascasarjana Universitas Gadjah Mada
Array
This study examines the extent of landscape ecology and attractiveness of the natural environment in the tourism area in the region north of Yogyakarta. Yogyakarta northern region has objects and natural tourism attractions of the venture capital in its tourism development footprint. The compatibility and attractiveness level of the environment is one of the most important factors to determine the region’s level of potential environmental compatibility and attractiveness, so that the characteristics and the distribution pattern of the attractiveness and harmony of nature in the tourism region can be known. The results showed that the landscape level of ecological harmony and the attractiveness of the environment after the 2010 eruption had a significant amount of the index. The higher the quality of the natural (physical) environment and social (human and socioeconomic) culture is, the higher the level of harmony and attractiveness of the region. Landscape ecology establishes harmony between the social component (population) and the natural environment (bio-physical), suchthat they form a potential tourist attraction at the site of nature tourism in the region north of Yogyakarta.
Universitas Gadjah Mada
2015-03-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6024
Jurnal Teknosains; Vol 3, No 2 (2014): June
eng
Copyright (c) 2015 Muhamad muhamad
oai:jurnal.ugm.ac.id:article/6026
2015-03-11T05:04:38Z
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ADSORPSI PENCEMARAN LIMBAH CAIR INDUSTRI PENYAMAKAN KULIT OLEH KITOSAN YANG MELAPISI ARANG AKTIF TEMPURUNG KELAPA
Lasindrang, Musrowati
Fakultas Pertanian Universitas Gorontalo
Sulawesi Utara
Array
Chitosan has been used as biosorbent. In addition to having advantages, chitosan as biosorbent also has disadvantages. Chitosan is very soluble in low pH, so it cannot adsorb Cr (total) at low pH. It is because the active site (amine group) of chitosan undergoes protonation, and its adsorption capability is easily influenced by anions in waters. Therefore, this research studied the use of chitosan coating on active charcoal of coconut shell to increase the adsorption capability of Cr (total), BOD, and COD. This research was done to evaluate the characteristics of the liquid waste quality with or without Wastewater treatment unit (IPAL), and compare them with the Regulation of DIY Governor number 7/2010. It also studied the effect of pH and Concentration of chitosan coating on active charcoal as adsorbent on the decrease of Cr (total), BOD, and COD concentration in the liquid waste of leather tanning. The results indicate that the liquid waste of the leather tanning industry with and without Wastewater treatment unit (IPAL) have exceeded the quality standard for the liquid waste of leather tanning industry. An ANOVA statistical test indicated that Cr (total), BOD, and COD are significant at 0.05 (p < 0.05), with various pH influencing the decrease in Cr (total), BOD, and COD. The highest removal percentage resulting from the effect of chitosan concentration coating on active charcoal is obtained in adsorbent C (K3A1), with Cr (total) (91.9%); BOD (99.5%); and COD (98.47%).;
Universitas Gadjah Mada
2015-03-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6026
Jurnal Teknosains; Vol 3, No 2 (2014): June
eng
Copyright (c) 2015 Musrowati Lasindrang
oai:jurnal.ugm.ac.id:article/6027
2015-03-11T05:14:09Z
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DAMPAK DAN KENDALA WISATA WADUK SERMO DARI ASPEK LINGKUNGAN HIDUP DAN RISIKO BENCANA
dan M. Widyastuti, Sudarmadji
Fakultas Geografi Universitas Gadjah Mada
Array
Sermo Reservoir is a multipurpose reservoir. Due to its natural beauty and being the only reservoir in Yogyakarta Special Region, it is visited by many tourists. Tourism activities in the reservoir may cause environmental impacts and disaster risks for the tourists. This study aims to determine the potential of Sermo Reservoir as a natural tourism object and, in general, analyze the environmental impacts and disaster risks caused by tourism activities. The study was conducted by field surveys, observations and interviews with the local community. Reservoir water samples were collected for physical and chemical parameter analysis and were evaluated against the standard requirements of water for tourism activities. Data analysis was performed using descriptive qualitative and quantitative methods, using tables and diagrams of the processed data. In general it was found that the Sermo Reservoir has high potential for tourism. However, due to the lack of supporting facilities, the number of tourist coming to the Sermo Reservoir is still not yet optimal. The environmental impacts caused by tourism activities have occurred. The positive impacts that arise are the emerging business opportunities and the increased revenue of the local people, while the negative impacts are the pollution caused by solid waste and the water quality degradation. The risk of disaster may come from accidents when conducting activities in the reservoir, and it should be considered in the development of Sermo Reservoir for tourism.
Universitas Gadjah Mada
2015-03-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6027
Jurnal Teknosains; Vol 3, No 2 (2014): June
eng
Copyright (c) 2015 Sudarmadji dan M. Widyastuti
oai:jurnal.ugm.ac.id:article/6028
2017-08-28T02:31:42Z
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OPERATIONS RESEARCH STRATEGI EFISIENSI BERMULA DARI PERANG
Masruroh, Nur Aini
Jurusan Teknik Mesin dan Industri
Array
Penggunaan nama operations research ini
memang tidak dapat lepas dari sejarah awal
perkembangan ilmu ini. Berawal dari zaman
perang dunia kedua, ketika pemerintahan
Inggris dan Amerika menghadapi permasalahan
terbatasnya ketersediaan logistik
perang yang harus dialokasikan ke beberapa
operasi militer dan aktivitas lain yang
mendukung operasi militer ini sehingga
memerlukan sebuah strategi distribusi
logistik yang efektif dan efisien. Guna
merumuskan strategi ini, maka dibentuklah
tim yang terdiri dari sejumlah ilmuwan
untuk mengaplikasikan pendekatan ilmiah
untuk memecahkan permasalahan ini. Tim
ini diberi tugas untuk melakukan research on
(military) operations. Tim ilmuwan inilah yang
selanjutnya dikenal sebagai tim operations
research (OR) yang pertama kali. Salah satu
hasil dari tim ini adalah hasil risetnya tentang
strategi pengaturan operasi kapal selam yang
menghasilkan kemenangan dalam perang di
Atlantik utara.
Universitas Gadjah Mada
2015-03-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6028
Jurnal Teknosains; Vol 3, No 2 (2014): June
eng
Copyright (c) 2015 Nur Aini Masruroh
oai:jurnal.ugm.ac.id:article/6045
2015-03-13T09:14:44Z
teknosains:ART
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"151118 2015 eng "
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MODEL KESUKSESAN PRODUK SANITER
Subagyo, Andrean Emaputra dan
Jurusan Teknik Industri Fakultas Teknik
Universitas Gadjah Mada
Array
A company that manufactures home decorations and sanitary products has not been able to achieve the expected
production utility. This was indicated by the installed production capacity (of the sink) in 2013, which has not been
completely consumed. Therefore, studies that explore customer needs and their corresponding levels of customer
satisfaction need to be done. Achieving the desired product quality and customer satisfaction can be an entrance
for achieving higher sales. This study was conducted in several stages, with the sink selected as the type of product
for the research object. First, the quality attributes of the sink were identified. Second, the importance levels of
the quality attributes were searched by questionnaires. Third, the sink quality attributes were grouped into the
classification of quality attributes by the Kano model. This study gave some results. First, 90% of the average
importance level of the sink quality attributes were between ‘important’ and ‘extremely important’. Second, the
survey that used the Kano model indicated that (1) ‘performance’ was a must-be quality attribute, (2) ‘aesthetics’
was not an indifferent quality attribute from ‘attractiveness’, except for ‘excellence drainage’, which was classified
into a must-be quality attribute, (3) features could improve customer satisfaction quickly through ‘the sink price
is competitive’, (4) the ‘durable sink color’ and ‘scratch resistant’ attributes can increase customer satisfaction, (5)
‘materials that are for maintenance are included when buying the sink’ could increase consumer satisfaction very
quickly, and (6) the higher the reputation of the company, the higher the customer satisfaction
Universitas Gadjah Mada
2015-11-18 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6045
Jurnal Teknosains; Vol 4, No 1 (2014): December
eng
Copyright (c) 2015 Andrean Emaputra dan Subagyo
oai:jurnal.ugm.ac.id:article/6046
2015-03-13T09:19:21Z
teknosains:ART
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"151118 2015 eng "
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SLUM, SQUATTER, AND QUASI-SQUATTER HOUSING DEPRAVITY IN YOGYAKARTA
M. Baiquni, Arap Matinguny Adris, Suratman Worosuprojo, dan
Islamic University in Uganda
Array
This studyaims at deepen our understanding of the slum-squatter housing issue in relation to the
differences in household socio-economic factors. The theoretical basis of the study comes from literature
on self-help housing,consolidation, and marginality especially by J. Turner and colleagues. Three
household factors are key to the processes of taudification and consolidation in this city namely, income,
dependency burden, and land tenureship.
This studyattempts to synthesise a facility allocation model i.e. a Client-Oriented model; and to establish the
theoretical background of the concept of Self-Help housing advocated by Turner and friends. The study finds
out that self-help housing as proposed by these researchers lacks a theoretical and philosophical setting. In
this context, the study advances the Self-Care Ethic philosophy and a Covering Law theory as the departure
of self-help and housing consolidation policies in urban settlements. With this in mind, the Client-Oriented
model is instrumental because its purpose is to determine the degree of housing and facility in a settlement.
Universitas Gadjah Mada
2015-11-18 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6046
Jurnal Teknosains; Vol 4, No 1 (2014): December
eng
Copyright (c) 2015 Arap Matinguny Adris, Suratman Worosuprojo, dan M. Baiquni
oai:jurnal.ugm.ac.id:article/6047
2015-03-13T09:23:52Z
teknosains:ART
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"151118 2015 eng "
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OPTIMALISASI PENGGUNAAN LAHAN UNTUKAGROFORESTRI DI DAERAH ALIRAN SUNGAI CIMANUK PROPINSI JAWA BARAT
dan Lutfi Muta’ali, Caya, Totok Gunawan, Suratman Woro Suprodjo,
Dinas Kebersihan dan Pertamanan Kabupaten Indramayu- Jawa Barat
Array
Watershed-based management in areas at the boundary of water sheds until now has not been realized. Basic
administrative process is still practiced in management, and sectoral ego is still high. Though watershed area is a
system, when an error occurs in the upper management, it will have an impact on down stream are as. Watershed
management is still focused on the economic benefits compared to environmental aspects. This research aims to
develop land evaluation models and economic evaluation to support the optimization of the use of land-based agro
forestry. This study uses the physicall and evaluation with Ver.1.0 SPKL land evaluation model, which aims to
determine the level of suitability of the land for agro forestry crops and the economic valuation of environmental
services approach. The results of this study are in the form of land use optimization appropriate tothe physical
and economic aspects of the approach, for the development of sustainable agriculture(agro forestry). The results
obtained from this research can bring an idea about the amount(dollars) that can be produced by a plant agro
forestry.
Universitas Gadjah Mada
2015-11-18 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6047
Jurnal Teknosains; Vol 4, No 1 (2014): December
eng
Copyright (c) 2015 Caya, Totok Gunawan, Suratman Woro Suprodjo, dan Lutfi Muta’ali
oai:jurnal.ugm.ac.id:article/6048
2015-03-13T09:30:45Z
teknosains:ART
nmb a2200000Iu 4500
"151118 2015 eng "
2443-1311
2089-6131
dc
PEMANFAATAN FESES TERNAK SAPI SEBAGAI ENERGI ALTERNATIF BIOGAS BAGI RUMAH TANGGA DAN DAMPAKNYA TERHADAP LINGKUNGAN
Totok Gunawan, Latifah Hanum Damanik, Adi Heru Husodo, dan
Sekolah Tinggi Ilmu Kesehatan Surya Global Yogyakarta
Array
Sustainable development is a development that meets the needs of the present without compromising the right
to meet the needs of future generations. It is used to describe the development of sustainable improvement in
the quality of human life, while trying not to exceed the ability of the ecosystem that supports life. Utilization of
waste as an alternative source of energy is not yet common, especially the waste that comes in a large capacity
from farming activities. This is because the waste released into the environment has particular characteristics
and properties, with potential impacts for environmental disadvantage that needs to be done handling back. This
research studied the utilization of cattle feces as an alternative energy of biogas for household and its impact on
the environment in Kepuharjo Village, Cangkringan, Sleman. The results give an overview of how the community
has responded positively to the use of animal feces biogas as an alternative energy, which proved of value to the
utilization of biogas energy savings of 2.50.
Universitas Gadjah Mada
2015-11-18 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6048
Jurnal Teknosains; Vol 4, No 1 (2014): December
eng
Copyright (c) 2015 Latifah Hanum Damanik, Adi Heru Husodo, dan Totok Gunawan
oai:jurnal.ugm.ac.id:article/6049
2015-03-13T09:34:06Z
teknosains:ART
nmb a2200000Iu 4500
"151118 2015 eng "
2443-1311
2089-6131
dc
KATA-KATA KANSEI PADA PRODUK BERBASIS BUDAYA UNTUK PEMENUHAN KEBUTUHAN MASLOW
Heddy Shri Ahimsa-Putra, Ratih Setyaningrum, I.G. Bagus Budi Dharma, dan
Progran Studi Teknik Industri
Fakultas TeknikUniversitas Dian Nuswantoro
Semarang Jawa Tengah
Array
Cultural aspect is not a priority within a product design and development process in Indonesia. On the other hand,
cross culture products have success in the global market. That product is included in each Maslow level. Cultural
aspect in product design is applied with a semantics, such as kansei words. The purpose of the research is to identify
culture products and kansei words based on Maslow needs. The research stage begins with mapping culture
products based on Maslow needs and determining kansei words. The result of this research is a classification of
kansei words. It is used to guide product development. Product development based on Maslow needs is one strategy
to attract consumers. Therefore, product development and diversification product had met the needs of Maslow
Universitas Gadjah Mada
2015-11-18 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6049
Jurnal Teknosains; Vol 4, No 1 (2014): December
eng
Copyright (c) 2015 Ratih Setyaningrum, I.G. Bagus Budi Dharma, dan Heddy Shri Ahimsa-Putra
oai:jurnal.ugm.ac.id:article/6050
2015-03-13T09:38:01Z
teknosains:ART
nmb a2200000Iu 4500
"151118 2015 eng "
2443-1311
2089-6131
dc
COLONIZATION OF MANGROVE FOREST AT ABANDONED SHRIMP-POND OF SEGARA ANAKAN-CILACAP
Djohan, Tjut Sugandawaty
Array
During the 1996 to 1997, large areas of mangrove forest in the Segara Anakan were cleared and converted into intensive shrimp-ponds. After one to two years, these shrimp-ponds failed and were abandoned. These abandoned ponds created large gap areas and canopy gaps, which were colonized by mangrove shrub and liana. The Segara Anakan mangrove also experienced heavy siltation, and there were tree cuttings from the remnant of the mangrove trees. This research aimed to study the colonization of mangrove vegetation at the abandoned-shrimp pond. Vegetation data were collected using rectangular plots of 25 m x 25 m with 4 replicates. The water qualities were also studied. The results revealed that the mangrove forests were composed of two layers: canopy tree and floor-vegetation. The gap areas triggered the pioneer species of mangrove shrubs and liana, Acanthus ilicifolius and Derris heterophylla, to colonize and dominate 100% of the mangrove forest floor. The mangrove trees consisted of natural and planted tree species. The natural trees were Sonneratia alba, Avicennia alba, and saplings of Aegiceras corniculatum, which varied between 56 – 136, 4, and 4 individuals per ha, respectively. The planted trees were Rhizophora apiculata, which amounted to 4 – 12 individuals per ha, at the island of the ponds. These trees and saplings were entangled by the liana mangrove, which disturbed their growth. The A. ilicifolius and D. heterophylla prevented the mangrove tree propagules to grow, and they colonized and characterized those abandoned shrimp-ponds, which threatened the Segara Anakan mangrove ecosystem.
Universitas Gadjah Mada
2015-11-18 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6050
Jurnal Teknosains; Vol 4, No 1 (2014): December
eng
Copyright (c) 2015 Tjut Sugandawaty Djohan
oai:jurnal.ugm.ac.id:article/6051
2015-03-13T09:42:43Z
teknosains:ART
nmb a2200000Iu 4500
"151118 2015 eng "
2443-1311
2089-6131
dc
SIMULASI ALIRAN PASIEN RAWAT INAP UNTUK MENGURANGI BOTTLENECK
Anna Maria Sri Asih, Thomas Sonny Soegiharto dan
Jurusan Teknik Mesin dan Industri
Fakultas Teknik Universitas Gadjah Mada
Array
Bottleneck is possible to occur in a system like hospital, especially in admission and discharge of inpatient
processes. It can have impact on increasing waiting time and delayed time. Some alternatives were proposed to
reduce them, i.e. shift scheduling and human resource allocation. This research modelled real system accompanied
by two scenarios: the first scenario was conducted by balancing human resource utility without altering number
of employees, whereas the second scenario considered possibility of changing number of employees. The results
showed that both scenarios produced reduction of waiting time and delayed time. The first scenario is more feasible
compared to the second as no hiring or firing employees occurred, resulting in waiting time reduction of 110.6
minutes (15%) and decrease in delayed time by 184 minutes (15.9%). The reduction of waiting time and delayed
time is higher in scenario 2, which are 423.6 minutes (57%) and 281 minutes (24%), respectively. However, there
must be 4 additional employees hired in pharmacy applied in scenario 2.
Universitas Gadjah Mada
2015-11-18 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6051
Jurnal Teknosains; Vol 4, No 1 (2014): December
eng
Copyright (c) 2015 Thomas Sonny Soegiharto dan Anna Maria Sri Asih
oai:jurnal.ugm.ac.id:article/6052
2017-08-28T02:31:35Z
teknosains:BR
nmb a2200000Iu 4500
"151118 2015 eng "
2443-1311
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dc
BIOMATERIAL UNTUK RESTORASI FUNGSI DAN ESTETIKA
Yulianto, Dedy Kusuma
Fakultas Kedokteran Gigi
Universitas Gadjah Mada
Array
perkembangan
teknologi dalam bidang biomaterial
memberi kontribusi besar dalam dunia
kedokteran gigi. Keterlibatan disiplin ilmu
lain dalam mengembangkan teknologi yang
relevan memberi kontribusi yang sangat
besar dalam lahirnya inovasi baru baik
dari segi teknik maupun filosofi perawatan
dental
Universitas Gadjah Mada
2015-11-18 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6052
Jurnal Teknosains; Vol 4, No 1 (2014): December
eng
Copyright (c) 2015 Dedy Kusuma Yulianto
oai:jurnal.ugm.ac.id:article/6123
2015-04-20T03:51:14Z
teknosains:ART
nmb a2200000Iu 4500
"131222 2013 eng "
2443-1311
2089-6131
dc
SCAFFOLD BHA/GELATIN DENGAN PELAPIS PVA UNTUK APLIKASI IMPLAN
Punto Dewo, Alva Edy Tontowi, MK Herliansyah, dan
Jurusan Teknik Mesin dan Industri
Fakultas Teknik Mesin dan Industri Universitas Gadjah Mada
Array
Hard tissue defect, particularly at the bone structure, is a common problem in Indonesia causing improper function. About 60% of it is caused by defects that occur since birth, and the rest is caused by other factors, such as accidents. To treat these problems, medical doctor usually carry out transplantation or implantation. Implantation is done by filling the bone cavity with biomaterial made from Ca/P-based material, such as hydroxyapatite (HA). In the form of powder, pure HA is difficult to be formed into a certain shape and geometry since this material is brittle and has a high melting point (1400 oc), which is impossible to reach in a surgery environment. Additionally, in the form of macro-porous blocks, they are very weak and easy to break, far from the requirements. In order to form pure HA at room temperature and still fulfill the required strength, other biocompatible materials are needed. In this work, HA, gelatin and PVA were used to form samples. The HA was derived from bovine bone, bioactivity and oteoconductivity. Gelatin was used as a matrix of the composite, whilst Polyvynil Alchohol (PVA) acted as a coating. The HA was derived by calcination of bovine chips at 900 oC for 2 hours, while the gelatin (G) and PVA were supplied by commercial purchase. The ratio of [G/bHA] to distilled water (H2O) was 30%, 40% dan 50% w/v. PVA 0.2% w/w coating was done by dipping the block in liquid nitrogen (N2). Tests were performed by DTS and microstructure analysis was carried out by SEM. The results show that sample with [G/bHA] of 50% w/v gave DTS of 6.219 MPa. This tensile strength matched the strength of human bone from a 62 year old person.
Universitas Gadjah Mada
2015-03-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6123
Jurnal Teknosains; Vol 3, No 1 (2013): December
eng
Copyright (c) 2015 Alva Edy Tontowi, MK Herliansyah, dan Punto Dewo
oai:jurnal.ugm.ac.id:article/6124
2015-04-20T01:57:53Z
teknosains:ART
nmb a2200000Iu 4500
"121222 2012 eng "
2443-1311
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dc
KAJIAN KONSEPTUAL PEMODELAN PERUBAHAN PENGGUNAAN LAHAN UNTUK STUDI ILMU LINGKUNGAN
Latuamury, Bokiraiya
Fakultas Kehutanan Universitas Pattimura- Ambon
Array
Modeling is one of the methods in the portfolio of techniques and approaches available to unravel the dynamics of the land-use system. In this perspective, models are used as a learning and communication tool between researchers to formalize knowledge on the dynamics of land-use change. Land-use system is a very complex system, such that computer modeling is needed as a computational laboratory to estimate and test hypotheses about the process of land-use change. One of the major difficulties in multi-disciplinary research is to find ways to express oneself, which are acceptable to all the disciplines involved and free from the connotation of any or all of them. Land-use change models play an important role in exploring possible future developments in the land-use system. This paper attempts to show the methods and approaches to be used as a communication and learning environment for stakeholders involved in the decision making about land-use change systems in the field of environment
Universitas Gadjah Mada
2015-03-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6124
Jurnal Teknosains; Vol 3, No 1 (2013): December
eng
Copyright (c) 2015 Bokiraiya Latuamury
oai:jurnal.ugm.ac.id:article/6125
2015-04-20T03:45:02Z
teknosains:ART
nmb a2200000Iu 4500
"131222 2013 eng "
2443-1311
2089-6131
dc
MODEL INTEGRASI DESIGN DAN PROSES MANUFAKTUR PADA PERAKITAN PRODUK MULTI-PEMASOK
dan Alva Edy Tontowi, Budi Susanto, MK Herliansyah,
Array
In Product design process, aspects related to the manufacturing process and supply chain should be considered. The design is produced not only satisfy for consumers needs but it fulfilled the constraints related to manufacturing
and supply chain aspects. This research aims to make a model to determine the cheapest product design from both of manufacturing process and supply chain. This research uses binary programming as an approach. The cost aspects used in this research are component’s manufacturing cost, supplier fixed contact cost, assembly operation cost and quality improvement cost. The result of research, a physical product design with the lowest total cost by combining components from several designs and adding the value constraint on the quality specification.
Universitas Gadjah Mada
2015-03-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6125
Jurnal Teknosains; Vol 3, No 1 (2013): December
eng
Copyright (c) 2015 Budi Susanto, MK Herliansyah, dan Alva Edy Tontowi
oai:jurnal.ugm.ac.id:article/6126
2015-04-20T04:10:18Z
teknosains:ART
nmb a2200000Iu 4500
"131222 2013 eng "
2443-1311
2089-6131
dc
PERBAIKAN PROSES FERMENTASI BIJI KAKAO KERING DENGAN PENAMBAHAN TETES TEBU, KHAMIR, DAN BAKTERI ASAM ASETAT
dan Sri Wedhastri, Donny Widianto, Ajeng Dara Pramita,
Program Studi Bioteknologi Sekolah Pascasarjana Universitas Gadjah Mada
Array
Most of cocoa beans produced by smallholder farmers were non fermented which can be improved by modified
fermentation processing. This study was aimed to inverstigate the influence of molasses, yeast Saccharomyces
cerevisiae, and Acetobacter aceti addition on dried cocoa beans fermentation process.
Fresh cocoa beans were dried in a glasshouse and its reducing sugar was analyzed before and after drying. A
small plastic bucket (20 cm diameter and 30 cm height) with aeration holes was used as fermentation vessel. Dried
cocoa beans were soaked in distilled water for 4 hours, inoculated with yeast and acetic acid bacteria cultures, and
molasses were added at two different concentration, i.e, 1 and 1.5 times of reducing sugar lost during drying.
Reducing sugar, ethanol, titrated acid, population of yeast, and acetic acid bacteria were monitored during
fermentation. After fermentation the beans were sun dried and its pH and degree of fermentation were determined
to assess the bean quality.
The results showed that the addition of molasses mostly at the level of 1.5, S. cerevisiae, and A. aceti increase
reducing sugar, ethanol, titrated acid, yeast and acetic acid bacteria of fermentation liquid (pulp). The highest
percentage of fermented beans (68.4 %) was achieved by addition of S. cerevisiae, A. aceti, and molasses at
the level 1.5. It is likely that the addition of S. cerevisiae, A. aceti, and molasses could improve fermentation
processing of dried cocoa bean.
Universitas Gadjah Mada
2015-03-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6126
Jurnal Teknosains; Vol 3, No 1 (2013): December
eng
Copyright (c) 2015 Donny Widianto, Ajeng Dara Pramita, dan Sri Wedhastri
oai:jurnal.ugm.ac.id:article/6127
2015-04-20T04:15:38Z
teknosains:ART
nmb a2200000Iu 4500
"131222 2013 eng "
2443-1311
2089-6131
dc
PENGARUH KHLORHEKSIDIN DIGLUKONAT 2% DAN GLISERIN SEBAGAI BAHAN PENCAMPUR KALSIUM HIDROKSIDA TERHADAP SISA KALSIUM HIDROKSIDA PADA SEPERTIGA APIKAL DINDING SALURAN AKAR GIGI
Widowati Siswomihardjo, Emmawati Prawitasari, Diatri Nari Ratih, dan
Program Studi Ilmu Konservasi Gigi, Pendidikan Dokter Gigi Spesialis, Fakultas
Kedokteran Gigi Universitas Gadjah Mada Yogyakarta
Array
The most widely used intracanal medicament is calcium hydroxide (Ca(OH2). However, the residue of
Ca(OH)2 in the root canal must be removed prior to obturation. The residue of Ca(OH)2 in the root canal
walls would result in apical leakage. This is due to the unstable dimension of Ca(OH)2, reduced flow
and working time of the sealers, and decreased adhesion of sealers and gutta percha to root canal walls.
This study aimed to determine the effect of Ca(OH)2 vehicles and agitation irrigation techniques on the
residue of Ca(OH)2 in the apical third of the root canal walls.
Twelve extracted mandibular first premolars were used in this study. The crowns of the teeth
were removed at the apical part of cemento enamel junction with a length of 14 mm from the apical.
The canals were prepared with a Step Back technique to obtain Master Apical File ( MAF ) # 40. The
specimens were randomly devided into groups I, the pastes of Ca(OH)2+chlorhexidine digluconate 2%.
In groups II, the pastes of Ca (OH)2+ glycerin were applied. Each specimen of the study was sectioned
in the sagittal direction, then was photographed under a stereo microscope at 120x magnification. The
percentages of Ca(OH)2 residue were calculated using UTHSCSA image tool 3 software. Data were
analyzed using T-test at 95% level of significance.
The results revealed that the group of Ca(OH)2+ chlorhexidine digluconate 2% paste showed the
lowest number of residual Ca(OH)2.The conclusion of this study was that the vehicles affected the total
residue of Ca(OH)2.
Universitas Gadjah Mada
2015-03-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6127
Jurnal Teknosains; Vol 3, No 1 (2013): December
eng
Copyright (c) 2015 Emmawati Prawitasari, Diatri Nari Ratih, dan Widowati Siswomihardjo
oai:jurnal.ugm.ac.id:article/6128
2015-04-20T04:24:40Z
teknosains:ART
nmb a2200000Iu 4500
"131222 2013 eng "
2443-1311
2089-6131
dc
UJI BIOKOMPATIBILITAS KOMPOSIT POLIVINIL ALKOHOLHIDROKSIAPATIT DENGAN PENGUAT CATGUT SEBAGAI BAHAN PENYAMBUNG PATAH TULANG
Alva Edy Tontowi, M. Taha Ma’ruf, Widowati Siswomihardjo, Marsetyawan HNE
Bagian Ilmu Bedah Mulut, Fakultas Kedokteran Gigi
Universitas Mahasaraswati Denpasar-Bali
Array
Bone fracture fixation devices have been using rigid metallic materials such as titanium, titanium-alloy or cobalt chrome. Besides having some advantages, the titanium fixation devices also have disadvantages, such as too high strength and stiffness. This continuously stimulates the bone, causing bone atrophy under the plate, further disrupting the growth of bones, especially in children. Other deficiencies of this metal material is its sensitivity to temperature changes and the spread of metal ions in several organs. Some of these shortcomings led to the need for a secondary operation. Bone fracture fixation devices, such as the poly-l-lactic acid (PLLA), can be absorbed by the body and show some other advantages. However, it also has some drawbacks due to the high crystalline products during the degradation process. Lactic acid monomer released after degradation causes cellular response at the implant site, which facilitates the release of chemical mediators, such as prostaglandine by fibroblasts and macrophages as a cause of bone resorption. Therefore, this study aimed to develop the use of other polymeric materials that have good biocompatibility,appropriate mechanical strength, and can be absorbed by the body, such as Polyvinyl Alcohol (PVA). Previous research suggests that the PVA-HA composite with catgut reinforcement has sufficient and stable mechanical strength to be used as bone fracture fixation material. The purpose of this study is to know whether the PVA-HA composite with catgut reinforcement has good biocompatibility without toxicity and hypersensitivity effects in experimental animals. Biocompatibility testing includes local cytotoxicity and type IV contact hypersensitivity test. This type of research is experimental in vivo laboratory using wistar rats (Rattus norvegicus). Testing is done through two phases, in which induction or sensitization phase is done by rubbing PVA-HA composite with catgut reinforced ointment powder on the ears that lasts up to 10 days. After being rested for 3 days, this is followed by a second phase contact (elicitation) on day 14 and observed in the period of 24, 48, and 72 hours. Observations were made macroscopically and ear thickness was measured with a micrometer. Local toxicity testing is done by implantation of PVA-HA composite with catgut reinforcement on the back catgut of wistar rats. After a certain time period, the implant material is opened,examined, and observed histologically under a light microscope. The results showed no discoloration or induration on the animal ears in all treatment and control groups, both for the sensitization and the elicitation phase. One way ANOVA statistical test showed that there were no significant differences in the results of measurements of the thickness of the wistar rats ears from all treatment groups before and after treatment on measures 24, 48 and 72 hours (ρ >0.05). Microscopic examination showed no infiltration of acute inflammatory cells such as neutrophils, basophils or eusinofil, and chronic inflammatory cell infiltration such as macrophages, lymphocytes and plasma cells. It can be concluded that the PVA-HA composite with catgut reinforcement is a material that does not cause toxicity and hypersensitivity in experimental animals, thus potentially can be used as bone fractures fixation material.
Universitas Gadjah Mada
2015-03-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6128
Jurnal Teknosains; Vol 3, No 1 (2013): December
eng
Copyright (c) 2015 M. Taha Ma’ruf, Widowati Siswomihardjo, Marsetyawan HNE Alva Edy Tontowi
oai:jurnal.ugm.ac.id:article/6129
2015-04-20T08:36:16Z
teknosains:ART
nmb a2200000Iu 4500
"131222 2013 eng "
2443-1311
2089-6131
dc
METODE PENGENALAN POLA TRABEKULA MANDIBULA PADA RADIOGRAF PERIAPIKAL DIGITAL UNTUK DETEKSI DINI RISIKO OSTEOPOROSIS
Evrita Lusiana Utari, Sri Lestari dan
Minat Studi Teknik Elektromedis
Program Studi Teknik Elektro Universitas Respati Yogyakarta
Array
Osteoporosis is a sistemic skeletal disease. Osteoporosis examination using the gold standard determined by
WHO, namely DEXA, is relatively expensive and the result can not show the bone microarchitecture. Meanwhile,
the probability of advanced age women to visit a dentist is relatively high. If the condition of bone mass density
which indicate osteoporotic condition can be recognized from the trabecullar pattern of mandible, so the dentist
can participate in early detection of a patient having a risk of osteoporosis. The objective of this research is to get
the pattern recognition method which can be applied to digital periapical radiograph that characterize the bone
mass density condition. Combination of Sobel’s edge detection with the binary image has been applied to the image,
producing an image showing the mandible trabecullar pattern visually. Supported by fractal dimension value and
find local maxima in the binary image, the pattern can be better distinguished for each condition of osteoporosis,
osteopenia, and normal. The value of fractal dimension and find maxima is positively correlated with the bone
mass density.
Universitas Gadjah Mada
2015-03-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6129
Jurnal Teknosains; Vol 3, No 1 (2013): December
eng
Copyright (c) 2015 Sri Lestari dan Evrita Lusiana Utari
oai:jurnal.ugm.ac.id:article/6130
2017-08-28T02:31:50Z
teknosains:BR
nmb a2200000Iu 4500
"131222 2013 eng "
2443-1311
2089-6131
dc
MENGGUNAKAN SERANGGA UNTUK MEMAHAMI KEHIDUPAN
Martono, Edhi
Fakultas Pertanian
Universitas Gadjah Mada
Array
Serangga ternyata memiliki tempat yang sangat istimewa dalam ilmu pengetahuan.
Kalau selama ini lebih banyak mengenalnya sebagai jasad pengganggu (Istilah pertanian
dikenal sebagai OPT atau Organisme Pengganggu Tanaman dan Istilah kesehatan dikenal
sebagai vektor pembawa penyakit), maka dalam ilmu pengetahuan secara lebih umum
peran serangga bukan hanya sebagai penyebab kerugian dan kerusakan saja. Serangga amat
bermanfaat atau berjasa kepada ilmu pengetahuan dalam menambah khazanah pemahaman
tentang jasad hidup dan berbagai interaksi yang terjadi pada jasad hidup, termasuk manusia.
Universitas Gadjah Mada
2015-03-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/6130
Jurnal Teknosains; Vol 3, No 1 (2013): December
eng
Copyright (c) 2015 Edhi Martono
oai:jurnal.ugm.ac.id:article/7953
2015-11-24T03:23:31Z
teknosains:ART
nmb a2200000Iu 4500
"151118 2015 eng "
2443-1311
2089-6131
dc
KAJIAN SEBARAN POTENSI EKONOMI SUMBER DAYA
Musrowati Lasindrang, Latif Sahubawa Nurul Khakim
Jurusan Perikanan Fakultas Pertanian Universitas Gadjah Mada
Array
The objectives of research is to identify and inventory the economic potential of marine resources (fisheries and environmental services/beach tourism) and competitive commodity in the South Coast of DIY Province for investment purposes. The research method used is: a survey, the travel cost, the willingness to pay and analysis of competitive commodities. South Coast region of DIY Province which have valuable marine resources are economically important: Kulon Progo Regency (Congot and Galagah-Karangwuni Beach); Bantul (Pandansimo, Kuwaru, Depok and Parangtritis Beach); Gunungkidul (Sadeng, Wediombo, Siung, Sundak/Indrayanti, Drini, Baron, Ngerenehan, Gesing and Purwosari). The economic value of the resources of each coastal region as follows: (1) Kulon Progo Regency (fisheries = 519.817 IDR. billion and beach tourism = 0.608 IDR. billion, total 520.425 IDR. billion); (2) Bantul (fisheries = 121.455 IDR. billion and beach tourism = 2.961 IDR. billion: total 124.416 IDR. billion); (3) Gunung (fisheries = 63.957 IDR. billion and beach tourism = 6.803 IDR. billion; total 70.244 IDR. billion). The total economic value of marine resources of the South Coast of DIY Province DIY is 715.085 IDR. billion. Competitive commodity marine resources in Kulon Progo Regency Beach and Bantul is vanamme shrimp while in Gunungkidul are tuna, skipjack, tongkol, marlin, lemadang, layur, snapper, manyung and lobster.
Universitas Gadjah Mada
2015-11-18 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/7953
Jurnal Teknosains; Vol 4, No 2 (2015): June
eng
Copyright (c) 2015 Latif Sahubawa Nurul Khakim Musrowati Lasindrang
oai:jurnal.ugm.ac.id:article/7965
2017-01-05T08:58:00Z
teknosains:ART
nmb a2200000Iu 4500
"151118 2015 eng "
2443-1311
2089-6131
dc
PENENTUAN BOBOT KEPENTINGAN DECISION MAKER DALAM GROUP DECISION MAKING
Nur Aini Masruroh, Dian Eko Hari Purnomo dan
Pascasarjana Teknik Industri Universitas Gadjah Mada
Array
Generally, there are two criteria which are widely used to determineDM’s weight of interest, i.e. competenceand consensus. Various studies related to determine DM’s weight of interest based on competence or consensusseparately have been conducted. Each criterion has its own advantages. The advantage of using competence as acriterion is DMs who have high competence based on their consistence on the decisions made will have high of interest weight. Meanwhile, consensus criterion emphasizes a DM/s contribution to a group without consideringthe DM’s ability or competence.Considering the advantages of both criteria, this study developed a model to determine DM’s weight of interestby considering the DM’ competence and consensus in a GDM. This study used2 group decision making cases totaling in 6 groups consisting of 5 people each. Collected data was then processedusing DM’s weight of interest determination method based on competence and consensus. A model was thendesigned using regression method and fuzzy method. Therefore, a model to determine DM’s weight of interest was obtained by considering competence and consensus. DM’s weight of interest from each method was then involvedin group decision making. The research result showed that group decisions made by involving DM’s weight of interest were better decisions. It implies competence and consensus are two criteria which can be used to determineDM’s weight of interest.
Universitas Gadjah Mada
2015-11-18 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/7965
Jurnal Teknosains; Vol 4, No 2 (2015): June
eng
Copyright (c) 2015 Dian Eko Hari Purnomo dan Nur Aini Masruroh
oai:jurnal.ugm.ac.id:article/7966
2015-11-18T07:24:27Z
teknosains:ART
nmb a2200000Iu 4500
"151118 2015 eng "
2443-1311
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APLIKASI TANK MODEL DAN KESEIMBANGAN NERACA AIR STUDI KASUS MODEL DAS MIKRO (MDM),SUB-DAS CISAMPORA, DAS CIMANUK, KABUPATEN MAJALENGKA PROVINSI JAWA BARAT
Nana Mulyana Arifjaya, Syampadzi Nurroh dan
Fakultas Ilmu Lingkungan Sekolah Pascasarjana
Universitas Gadjah Mada
Array
The influence of forest cover in landuse is an important concern in the goverment’s regulation for distribution
of water flow into the rivers. The River flow is one of the hydrology paramater importantness in order to be
priority in managamenet environmental. The one of hydrology which could be used for water balancepredictionby
Tank Model. The Tank Model was applied using daily rainfall, evapotranspiration, and discharge river. Based
on research results that water balance are calculated by input parameter (precipitation, 678 mm) with output
parameter by discharge (623,48 mm) inequation curve discharge(Q = 1,606 (TMA1, 494)) with the correlation (R2)
is 0,993and evapotranspiration (631,04 mm). Based on the indicators of the reliability of the Tank model that
the value of the correlation coefficient (R) of 0,84 can be presented the results of verification in this case quite
satisfactory. The water balancewas surplus ouput by calculated 550 mm of water storage in ground water (38,80%),
outflowdistributed recharge river 622,21 mm(33,90%) regard to runoff including 24% (runoff coefficient 0,24)
and evapotranspiration 504,8 mm (27,30%).
Universitas Gadjah Mada
2015-11-18 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/7966
Jurnal Teknosains; Vol 4, No 2 (2015): June
eng
Copyright (c) 2015 Syampadzi Nurroh dan Nana Mulyana Arifjaya
oai:jurnal.ugm.ac.id:article/7969
2015-11-18T07:24:27Z
teknosains:ART
nmb a2200000Iu 4500
"151118 2015 eng "
2443-1311
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RESPON KOMUNITAS BENTHIK INSEKTA EMPAT BULAN PASCA-KEBAKARAN HUTAN 2002 DI HULU KALI BOYONG GUNUNG MERAPI
Djohan, Tjut Sugandawaty
Laboratorium Ekologi dan Konservasi
Fakultas Biologi Universitas Gadjah Mada
Array
The purpose of this research is to study the response of benthic insect community in the headwater of Boyong
River, Mount Merapi, four months post-forest fire in 2002. Energy at the headwater ecosystem was based on the
detritus food-chain. The presence of benthic community indicated forest health. The forest fire caused energy which
entered into the river changed from allochtonous coarse particulat organic matter (CPOM) to fine particulat
organic matter (FPOM). This change would be responded by the functional group of benthic community. Data
were collected with Surber Sampler. The result showed that there were 12 genus constituent of benthic insects
consisted of functional groups of collector gather, collector filter, predator, dan scrapper. The dominant functional
groups were collector gather and collector filters, 2256 individual/m3 or 86.02% and the dominant genus of Baetis
and Leutcra. Otherwise, scrapper was founded 111 individual/m3 or 4% and predator 256 individual/m3 or 10%.
This condition showed that four months post-forest fire indicated dominant allochtonous in Boyong River was
CPOM and FPOM with size of 1 mm. The quality of nutrients in the water was low, otherwise, the sediment
nutrients was high. The dominance of functional group of collectors indicated that ecosystem of headwater forest
in Boyong River had not been fully recovered.
Universitas Gadjah Mada
2015-11-18 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/7969
Jurnal Teknosains; Vol 4, No 2 (2015): June
eng
Copyright (c) 2015 Tjut Sugandawaty Djohan
oai:jurnal.ugm.ac.id:article/7970
2015-11-24T03:25:54Z
teknosains:ART
nmb a2200000Iu 4500
"151118 2015 eng "
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MODEL PENGENDALIAN KESEHATAN TENAGA KERJA PADA KEGIATAN PENGECORAN LOGAM TRADISIONAL STUDI KASUS DI KAWASAN INDUSTRI BATUR KLATEN- JAWA TENGAH
Totok Gunawan, dan Pramono Hadi, Latifah Hanum Damanik, Adi Heru Husodo,
STIKES Surya Global Yogyakarta
Array
Research conducted at PT. Bonjor Klaten the distribution of the metal dust in a casting chamber having an effect on the health of the workforce. Diseases caused by exposure to chemicals are dominant in the production process of metal casting in the PT.Bonjor Jaya Klaten is silica and manganese. This substance is thought to impact diseases such as silicosis, which silicosis is pneumoconiosis caused sucked (inhaled) dust silica free (SiO2) and suspected disease caused liveliest chemicals silica, the disease is becoming an important issue for workers at factories has been running for twenty years. The method used in the study with the path analisys. Based on the results obtained that the activity in the kitchen cupola foundry chemicals produce particles coming from the chimney and output channels cupola kitchen spread the longer the exposure, the disease can affect the lungs and skin. Model of labor control in PT . Bonjor in the form of research findings include: digital simulation on the distribution pattern of the direction and the fall of the particle chemical substances silicon and manganese are dispersed in space foundry, planning SOP activity raw material preparation, filling and operation of the kitchen cupola based hazard in the workplace environment, in an effort metal dust pollution control by using personal protective equipment and supervision of the workplace environment, and the application of legislation occupational safety and health related licensing and application SMK3 company in PT. Bonjor in efforts to control health workers traditionally casting.
Universitas Gadjah Mada
2015-11-18 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/7970
Jurnal Teknosains; Vol 4, No 2 (2015): June
eng
Copyright (c) 2015 Latifah Hanum Damanik, Adi Heru Husodo, Totok Gunawan, dan Pramono Hadi
oai:jurnal.ugm.ac.id:article/7971
2015-11-18T07:24:28Z
teknosains:ART
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"151118 2015 eng "
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MODEL OF MICROCLIMATIC INFLUENCE ON FLUCTUATION OF HERPETOFAUNA DIVERSITY IN CAMPUS AREA
Qurniawan, Tony F.
Faculty of Biology
Universitas Gadjah Mada
Array
The study on correlation of microclimates changes on fluctuations of herpetofauna diversity in campus area was
done for the last six years. Monitoring herpetofauna diversity was conducted from 2007 to 2012 using Visual
Encounter Survey. The analysis for designing a model on the influence of microclimates on fluctuations of
herpetofauna diversity performed by using smart PLS program. The result showed eight (8) species of amphibians
and twenty four (24) species of reptiles were identified within the last six-year visits (2007-2012). New country records
of Lepidodactylus cf lugubris (Geckonidae) species were documented. The results also showed that fluctuations of
herpetofauna diversity in campus area was influenced by microclimates elements. The model of microclimatic
influence on fluctuations of herpetofauna diversity showed that the humadity becomes a major factor influencing
on fluctuations of herpetofauna diversity in campus area with the predictive-relevance (Q2) value is 99,817%.
Universitas Gadjah Mada
2015-11-18 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/7971
Jurnal Teknosains; Vol 4, No 2 (2015): June
eng
Copyright (c) 2015 Tony F. Qurniawan
oai:jurnal.ugm.ac.id:article/7972
2015-11-18T07:56:01Z
teknosains:ART
nmb a2200000Iu 4500
"150622 2015 eng "
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OPTIMASI PROSES PENGUKURAN DIMENSI DAN DEFECT UBIN KERAMIK MENGGUNAKAN PENGOLAHAN CITRA DIGITAL DAN FULL FACTORIAL DESIGN
Muhammad Kusumawan Herliansyah, Denny Sukma Eka Atmaja
Pascasarjana Teknik Industri
Fakultas Teknik Universitas Gadjah Mada
Array
Theinspection process of surface quality of ceramic tile could be done by using image processing technique through
the optimization by using Center for Ceramics’s parameteron Indonesian National Standard (SNI) ISO 10545.
This research will analyze from light intensities (level 300lx, 600lx, and 900lx), and camera distances (50cm, 75cm
and 100cm), with three times replication using full factorial design. This research uses Matlab 2009a software
to identify area and defect on dry spots ceramic tile’s surface. The result obtained from this research is there were
significant influencing factors: light intensity, and camera distance, as well as the interaction of these factors
towards the error rate percentage of measuring areaand defect on ceramic tile’s surface. The smallest error rate
value from measuring tile’s surface and diameter of dry spots with light intensity of 300lx and camera distance of
50cm had been obtained the error rate value for each measurement about 0.0675% and 2.30%, with combination
of grayscale value for the error rate measurements of tile’s surface and diameter of dry spots were 0.2989 x 0.1140
x R + G+0.5870 x B. Based on the correlation coefficient value between light intensity, camera distance towards
the error rate of measuring areaand defect on tile’s surface, each of them was obtained correlation coefficient value
of camera distance with error rate had 0.518 and 0.516, which meant a strong correlation. The positive correlation
coefficient value showed a unidirectional relationship of two variables, where the rise of one variable would cause
the rise of another variable and the decline of one variable would cause the decline of another variable.
Universitas Gadjah Mada
2015-11-18 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/7972
Jurnal Teknosains; Vol 4, No 2 (2015): June
eng
Copyright (c) 2015 Denny Sukma Eka Atmaja Muhammad Kusumawan Herliansyah
oai:jurnal.ugm.ac.id:article/7973
2017-08-28T02:30:57Z
teknosains:BR
nmb a2200000Iu 4500
"150622 2015 eng "
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RESENSI Biologi Molekular adalah Ilmu yang Menyenangkan dan Mudah
Wahyudi, Ivan Arie
Fakultas Kedokteran Gigi Universitas Gadjah Mada
Array
Biologi molekuler merupakan ilmu pengetahuan merupakan multi disiplin
ilmu dari biokimia, biologisel, dan genetika yang mempelajari aktivitas biologi pada level molekular, termasuk interaksi antara perbedaan tipe DNA, RNA, protein, dan biosintesisnya. Aktivitas atau mekanisme apa yang terjadi pada level molecular sangat penting untuk dipelajari sehingga dapat menunjukkan gen apa yang mempengaruhi suatu penyakit genetik, identifikasi gen,identifikasi DNA, identifikasi DNA forensik, terapi gen dalam mengobati, dan mencegah penyakit dan sebagainya.
Universitas Gadjah Mada
2015-11-18 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/7973
Jurnal Teknosains; Vol 4, No 2 (2015): June
eng
Copyright (c) 2015 Ivan Arie Wahyudi
oai:jurnal.ugm.ac.id:article/8162
2018-09-07T18:25:51Z
teknosains:ART
nmb a2200000Iu 4500
"180908 2018 eng "
2443-1311
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Sari, Dian Permata
Gadjah Mada University
Sholihah, Eti Nurwening
Herliansyah, Muhammad Kusumawan
The mandibular bone defect can cause speech disorder, mastication malfunction, and aesthetic problems. The application of plate for mandibular reconstruction can improve the function disorder. Plate material must be strong, resilient, able to adapt to the bone surface, and has good biocompatibility. Cobalt chromium is a cobalt base alloys are often used for implant materials. It has good mechanical properties, biocompatibility, and corrosion resistance. The aim of this study was to investigate the effect of local irritation and tissue response on material cobalt chromium. This study used three albino rabbits were injected by the material powder in polar and nonpolar solvents with intracutaneous injection method, then the treatments were observed on the first, second, and third days. Erythema and edema that occurs were scored based on grading system for intracutaneous (intradermal) reactions. Friedmann test showed no significant difference between treatment groups (p> 0.05). The results showed that erythema and edema arising from irritant reactions are still within normal limits. Irritation occurs due to the release of cobalt chromium ions which trigger hypersensitivity reactions and result in systemic immunity.
Universitas Gadjah Mada
2018-09-08 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/8162
Jurnal Teknosains; Vol 7, No 2 (2018): June
ind
Copyright (c) 2018 Dian Permata Sari
oai:jurnal.ugm.ac.id:article/8526
2017-08-29T07:21:05Z
teknosains:ART
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"170830 2017 eng "
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Ali, Asgar
Masruroh, Nur Aini
Recycling is part of the green supply chain management which is developed base on the concept of environmentally friendly industry to respond the various issues regarding the environmental problems of the world. Distribution of recycled products starts from consumers and ends to manufacturing. The objective is to limit the waste in order to save energy and prevent the dumping of hazardous materials into the environment. However there are complexities in the supply chain because of some uncertainties such as the return of recycled product and the environmental impact resulting from the operation of supply chain. In this research, linear programming optimization method is proposed to overcome that problem with maximizing profit is set as the objective function. Emissions resulting from the recycling process are considered in the model. These results indicate that the mathematical model provides profit of Rp. 37.909.659, with 1.137.760 grams of CO2 emissions from the production process, 38.473,4 grams of CO and 5.884,9 grams HC + NOX of transport. While the proposed strategy is use the right vehicles and select the most efficient route according to the paper collected from consumers and sold to manufacturing. For the production process, it is required to add 3 pressing machines and 1 chopped machine, so the capacity of the working hours of 384 hours per month can be increased to 960 hours per month.
Universitas Gadjah Mada
2017-08-30 14:46:22
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/8526
Jurnal Teknosains; Vol 5, No 2 (2016): June
ind
Copyright (c) 2017 asgar ali, nur aini masruroh
oai:jurnal.ugm.ac.id:article/9131
2017-08-29T07:15:50Z
teknosains:ART
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"170830 2017 eng "
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EFFECT OF NON DENTAL GLASS FIBER ORIENTATION ON TRANSVERSE STRENGTH OF DENTAL FIBER REINFORCED COMPOSITE
Khalil, Abdulghani Ali
Faculty of Dentistry of Universitas Gadjah Mada
Siswomiharjo, Widowati
Biomaterial Department, Faculty of Dentistry of Universitas Gadjah Mada
Sunarintyas, Siti
Biomaterial Department, Faculty of Dentistry of Universitas Gadjah Mada
Array
FRC is widely used in dentistry especially for dental bridges construction. E glass fiber is commonly used because it has good properties and good bonding with polymers. Its availability is limited and its price quite expensive in Indonesia. Non dental glass fiber is available in Indonesia with lower price. The aim of this research was to evaluate the effect of non dental glass fiber orientation on transverse strength of dental FRC. Non dental glass fiber (HJ, China) with two orientations (Roving and Woven roving), Flowable composite (CharmFil Flow, DenKist, Korea) , Silane coupling agent (Monobond S, Ivoclar Vivadent, Liechtenstein) and distilled water. 24 specimens of non dental glass FRC, divided into 2 groups. The specimens was immersed in water for 24 hours and 7 days. The data were analyzed by Independent sample T-test. T-test analysis showed that for transverse strength with 24 hours water immersion there was a significant difference between the two orientation groups (p< 0.05). The data of 7 days immersion there was no statistical difference between the groups (p> 0.05). In conclusion: there was different transverse strength between roving and woven roving orientation in dental FRC.
Universitas Gadjah Mada
2017-08-30 14:46:22
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/9131
Jurnal Teknosains; Vol 5, No 2 (2016): June
eng
Copyright (c) 2017 Abdulghani Ali Khalil
oai:jurnal.ugm.ac.id:article/9313
2017-08-28T05:55:59Z
teknosains:ART
nmb a2200000Iu 4500
"170726 2017 eng "
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MODEL MATEMATIS PREDIKSI KESUKSESAN PRODUK MEMPERTIMBANGKAN BUDAYA PADA KENDARAAN BERMOTOR RODA EMPAT
Setyaningrum, Ratih
Departemen Teknik Mesin dan Industri, Fakultas Teknik, Universitas Gadjah Mada
Subagyo, Subagyo
Departemen Teknik Mesin dan Industri, Fakultas Teknik, Universitas Gadjah Mada
Wijaya, Andi Rahadiyan
Departemen Teknik Mesin dan Industri, Fakultas Teknik, Universitas Gadjah Mada
Array
Cultural aspects and Maslow needs has been considered on product development process. There is also has indication of product selection mutation based on Maslow needs ability. Based on these conditions, formulation of successful product development strategy in the future need to consider cultural aspects. Therefore, the purpose of this study is to determine mathematical model of products four-wheeled vehicles and to predict success. Stages of research include developing mathematical models, the validation process models and best model selection. The results of a mathematical model based on market share indicates that the component must-be inversely proportional to the success of the product, while the components of one-dimentional and attractive is directly proportional to the success of the product. The calculation result that Kano generate mathematical equations require further research. These research expected can determine the success of the model with the parameters of the success product in addition to market share.
Universitas Gadjah Mada
2017-07-26 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/9313
Jurnal Teknosains; Vol 5, No 1 (2015): December
eng
Copyright (c) 2017 Ratih Setyaningrum
oai:jurnal.ugm.ac.id:article/10821
2017-08-30T08:50:08Z
teknosains:ART
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"170830 2017 eng "
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Susanto, Susanto
Prasdiantika, Ricka
Bolle, Theodor C.M.
This study aims to synthesize of magnetite nanomaterial was dispersed with trisodium citrate (Fe3O4@citrate), carry out the characterization, and testing of its application in adsorbing of Au(III). Research carried out by synthesis of Fe3O4 with stirring using ultrasonic waves to synthesis of magnetite in the system of co-precipitation, using sodium citrate as dispersing agent of magnetite, and using acetone-water as solvent at washing of magnetite. Synthesized product was characterized by Fourier Transform Infrared spectrophotometer (FTIR), X-ray diffractometer (XRD), and transmission electron microscope (TEM). The characterized results indicate that Fe3O4@citrate has successfully synthesized with particle size of 17 nm. Fe3O4@citrate has smaller particle size, has smaller aggregates and has better particle dispersion than Fe3O4 without citrate. Testing the potential of synthesized Fe3O4@citrate as adsorbent of Au(III) from HAuCl4 solution of 200 ppm at pH 3. The Synthesized Fe3O4@citrate adsorbed the gold(III) of (81.554 ± 1.403) mg/g.
Universitas Gadjah Mada
2017-08-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/10821
Jurnal Teknosains; Vol 6, No 2 (2017): June
ind
https://jurnal.ugm.ac.id/teknosains/article/download/10821/20814
Copyright (c) 2017 Susanto Susanto, Ricka Prasdiantika, Theodor C.M. Bolle
oai:jurnal.ugm.ac.id:article/11380
2017-08-30T07:56:33Z
teknosains:ART
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"170830 2017 eng "
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dc
APPLYING ALPHA-BETA ALGORITHM IN A CHESS ENGINE
Putra, Werda Buana
Computer Science Department , Universitas Gadjah Mada
Heryawan, Lukman
Computer Science Department , Universitas Gadjah Mada
Array
Minimax Algorithm, is a solution to reduce the burden on hardware in chess engine. However, a more in-depth method is needed to further increase the search algorithm. One of those solutions is called Alpha-Beta Pruning algorithm. The idea is to eliminate the unnecessary nodes in the search tree.
Universitas Gadjah Mada
2017-08-30 14:58:36
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/11380
Jurnal Teknosains; Vol 6, No 1 (2016): December
eng
Copyright (c) 2017 Werda Buana Putra, Lukman Heryawan
oai:jurnal.ugm.ac.id:article/11385
2017-08-30T07:56:00Z
teknosains:ART
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"170830 2017 eng "
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dc
Prasdiantika, Ricka
Susanto, Susanto
This study aims to preparation, identify the content, and determine the type of iron oxide on the magnetic material from Iron Sand Lansilowo. Magnetic material is separated from iron sand using an external magnet. Magnetic material washes by using aquadest and dried at 80 °C. Materials were characterized by X-Ray fluorescence (XRF), Fourier Transform Infrared (FT-IR) spectrophotometer, X-ray diffractometer (XRD) and Transmission electron microscope (TEM). The results show that the magnetic material of iron sand Lansilowo contains elements of Fe (46.13%), the element Cr (28.08%), Mg (10,11%), Si (8.20%) and other minor elements. Iron oxide contained in iron sand Lansilowo is dominated by magnetite iron oxide (Fe3O4). The results of characterization show that the magnetic material of iron sand still contain oxide impurities such as silica oxide and chromium oxide
Universitas Gadjah Mada
2017-08-30 14:58:36
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/11385
Jurnal Teknosains; Vol 6, No 1 (2016): December
ind
https://jurnal.ugm.ac.id/teknosains/article/download/11385/21726
Copyright (c) 2016 Ricka Prasdiantika, Susanto Susanto
oai:jurnal.ugm.ac.id:article/22648
2017-08-30T08:50:08Z
teknosains:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
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dc
THE PHYSIOLOGICAL RESPONSE AND PRODUCTIVITY OF MAIZE (Zea mays L.) ‘Sweet Boy-02’ IN DIFFERENT LIGHT AND WATER TREATMENT
Akmalia, Hafidha Asni
Fakultas Tarbiyah dan Keguruan
Institut Agama Islam Negeri Antasari, Banjarmasin
Suharyanto, E.
Fakultas Biologi Universitas Gadjah Mada
Array
Physiological response is one of adaptation in plant toward its environment. This is related to plant productivity because there is a different physiological mechanism playing an important role in phenotype and productivity. The aims of the research were (1) to evaluate physiological response of maize in different light and water treatment, and (2) to determine the right light and water treatment to increase maize productivity. This research used Randomized Completed Design with 3 regimes of light intensity (63694, 11408 dan 3897 Lux) and 3 regimes of watering (2 L/ 1,6 L/ and 1,2 L). Each combination was done with 3 replications. Maize was harvested in 75 days after the treatment and the measured physiological responses were chlorophyll content, proline content, and root length meanwhile the plant productivity was seen from the fruit. Data were analyzed by Anava and DMRT test with significance level of 5%. The results showed that the light intensity L1 (63694 Lux) and watering W1 (2 L) increased the chlorophyll content, and produvtivity while proline content and root length increased under high light intensity L1 (63694 Lux) and drought W2 (1,6 L)-W3 (1,2 L). The optimal productivity presented in treatment L1 (63694 Lux) and W1 (2 L) seen from the heaviest fruit.
Universitas Gadjah Mada
2017-08-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/22648
Jurnal Teknosains; Vol 6, No 2 (2017): June
eng
https://jurnal.ugm.ac.id/teknosains/article/download/22648/43061
Copyright (c) 2017 Hafidha Asni Akmalia
oai:jurnal.ugm.ac.id:article/22901
2017-08-30T08:50:08Z
teknosains:ART
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"170830 2017 eng "
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PENYELESAIAN MULTI-OBJECTIVE FLEXIBLE JOB SHOP SCHEDULING PROBLEM MENGGUNAKAN HYBRID ALGORITMA IMUN
Habibi, Yabunayya
Fakultas Matematika dan Ilmu Pengetahuan Alam, Institut Teknologi Sepuluh Nopember
Swalaganata, Galandaru
Fakultas Matematika dan Ilmu Pengetahuan Alam, Institut Teknologi Sepuluh Nopember
Yustita, Aprilia Divi
Fakultas Matematika dan Ilmu Pengetahuan Alam, Institut Teknologi Sepuluh Nopember
Array
Flexible Job shop scheduling problem (FJSSP) is one of scheduling problems with specification: there is a job to be done in a certain order, each job contains a number of operations and each operation is processed on a machine of some available machine. The purpose of this paper is to solve Multi-objective Flexible Job Shop scheduling problem with minimizing the makespan, the biggest workload and the total workload of all machines. Because of complexity these problem, a integrated approach Immune Algorithm (IA) and Simulated Annealing (SA) algorithm are combined to solve the multi-objective FJSSP. A clonal selection is a strategy for generating new antibody based on selecting the antibody for reproduction. SA is used as a local search search algorithm for enhancing the local ability with certain probability to avoid becoming trapped in a local optimum. The simulation result have proved that this hybrid immune algorithm is an efficient and effective approach to solve the multi-objective FJSSP
Universitas Gadjah Mada
2017-08-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/22901
Jurnal Teknosains; Vol 6, No 2 (2017): June
eng
https://jurnal.ugm.ac.id/teknosains/article/download/22901/44181
https://jurnal.ugm.ac.id/teknosains/article/download/22901/44182
https://jurnal.ugm.ac.id/teknosains/article/download/22901/44183
https://jurnal.ugm.ac.id/teknosains/article/download/22901/44184
Copyright (c) 2017 Yabunayya Habibi, Galandaru Swalaganata, Aprilia Divi Yustita
oai:jurnal.ugm.ac.id:article/22992
2017-08-29T07:11:17Z
teknosains:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
2089-6131
dc
ANALISIS VEGF PADA PERGERAKAN GIGI ORTODONTI SETELAH PEMBERIAN SEDUHAN KOPI ROBUSTA ( COFFEACANEPHORA)
Herniyati, Herniyati
FAKULTAS KEDOKTERAN GIGI UNIVERSITAS JEMBER
Array
Background: Orthodontic tooth movement depends on bone remodeling. VEGF plays an important role in bone remodeling in both pressure area and tension area. Robusta coffee contains caffeine, chlorogenic acid and caffeic acid. Caffeine may increase osteoclastogenesis, and caffeic acid has antioxidant effects that may reduce oxidative stress in osteoblasts Objective: To analysis of VEGF of orthodontic tooth movement post robusta coffeesteeping administration. Material and methods: The experimental laboratories research used 16rats were divided into 2 groups. Group A: the rats were applied with orthodontic mechanical force (OMF) and group B: OMF + coffee steeping of 20mg /100 g of BW. OMF was conducted by applying ligature wire with a diameter of 0.20 mm on the molar-1 (M-1) and both incivus of right maxilla. Subsequently, M-1 of right maxilla was moved to mesial with Niti closed coil spring. Observations were made on days 15 and 22 by taking the gingival crevicular fluid by putting paper point on the gingival sulcus of mesio-and disto-palatal area of M-1 of right maxilla to determine the levels of VEGF using ELISA method. Results: the administration of Robusta coffee steeping increased the levels of VEGF in both compression area and tension area (p <0.05).The levels of VEGF in tension area larger than the compression area(p >0.05).Conclusion: the Robusta coffee steeping administration increased the levels of VEGF oforthodontic tooth movement ,therefore it may improve alveolar bone remodeling process and it may be an alternative to accelerate orthodontic treatment.
Universitas Gadjah Mada
2017-08-30 14:46:22
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/22992
Jurnal Teknosains; Vol 5, No 2 (2016): June
eng
https://jurnal.ugm.ac.id/teknosains/article/download/22992/44499
Copyright (c) 2017 HERNIYATI HERNIYATI
oai:jurnal.ugm.ac.id:article/23158
2017-08-30T07:56:24Z
teknosains:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
2089-6131
dc
PENGARUH EKSTRAK KOPI ROBUSTA TERHADAP EKSPRESI OSTEOKALSIN PADA OSTEOBLAS SELAMA PERGERAKAN GIGI ORTODONTI
Herniyati, Herniyati
Fakultas Kedokteran Gigi
Universitas Jember
Array
The objective of research is to determine the expression of osteocalcin on osteoblasts during orthodontic tooth movement after administration robusta coffee extract. Materials and Methods: 16 rats were divided into 2 groups: group K: rats applied with orthodontic mechanical force (OMF) and group P: OMF + coffee robusta extract of 20mg /100 g of BW. OMF was conducted by applying ligature wire on permanent maxillary right first molar and both permanent maxillary incisivus. Subsequently, the permanent maxillary right first molar moved to mesial with Ni-Ti orthodontic closed coil spring. Observations were made on day 15 by immunohistochemical examination to determine the expression of osteocalcin. Results: Robusta coffee extract improved the expression of osteocalcin in the compression and tension areas (p <0.05). Expression of osteocalcin in tension area larger than that in compression area (p <0.05). Conclusion: The administration of Robusta coffee extract increases the expression of osteocalcin, which can increase alveolar bone remodeling.
Universitas Gadjah Mada
2017-08-30 14:58:36
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/23158
Jurnal Teknosains; Vol 6, No 1 (2016): December
eng
https://jurnal.ugm.ac.id/teknosains/article/download/23158/45043
Copyright (c) 2017 HERNIYATI HERNIYATI
oai:jurnal.ugm.ac.id:article/24127
2017-08-28T05:55:59Z
teknosains:EDT
nmb a2200000Iu 4500
"170726 2017 eng "
2443-1311
2089-6131
dc
Editorial
Siswomihardjo, Widowati
Array
Universitas Gadjah Mada
2017-07-26 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/24127
Jurnal Teknosains; Vol 5, No 1 (2015): December
eng
Copyright (c) 2017 Widowati Siswomihardjo
oai:jurnal.ugm.ac.id:article/24170
2017-08-28T05:55:59Z
teknosains:BR
nmb a2200000Iu 4500
"170726 2017 eng "
2443-1311
2089-6131
dc
SOLID STATE CHEMISTRY ILMU DASAR BERDAYA GUNA DAN APLIKATIF
Pujilaksono, Bagas
Sekolah Pascasarjana Universitas Gadjah Mada
Array
Kima zat padat (solid state chemistry) adalah ilmu dasar yang sangat menarik, menantang, berkembang dengan pesat, dan aplikasinya sangat luas. Metode analis, difraksi, dan spektroskopi berkembang pesat setelah dikembangkan konsep simetri. Manipulasi sifat fisik, dan magnetik material intensif dilakukan dengan memanfaatkan konsep simetri. Absorpsi energi dengan struktur molekul adalah cara kerja spektoskopi. Difraksi foton pada bidang-bidang kristal adalah cara kerja difraksi. Konsep difraksi dan spektrokopi dengan mudah dijelakan dengan teori simetri. Teori simetri adalah inti dari bidang ilmu kimia zat padat.
Universitas Gadjah Mada
2017-07-26 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/24170
Jurnal Teknosains; Vol 5, No 1 (2015): December
eng
Copyright (c) 2017 Bagas Pujilaksono
oai:jurnal.ugm.ac.id:article/24222
2017-08-29T07:08:22Z
teknosains:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
2089-6131
dc
EVALUASI KOMPLIKASI PLATE EXPOSURE PASCA RESEKSI AMELOBL ASTOMA MANDIBULA DENGAN REKONSTRUKSI PELAT TITANIUM DI RSUP DR. SARDJITO YOGYAKARTA
Widiastuti, Maria Goreti
RSUP Dr. Sardjito Yogyakarta
Soesatyo, Marsetyawan HNE
Bagian Histologi Fakultas Kedokteran Universitas Gadjah Mada
Magetsari, Rahardyan
Staf Medis Ortopedi dan Traumatologi RSUP Dr. Sadjito
Tontowi, Alva Edy
Departemen Teknik Mesin dan Industri Fakultas Teknik Universitas Gadjah Mada
Array
Resection of the jaw is a primary option of treatment in mandibular ameloblastoma with bone damage. Mandibular resection will cause mandibular stability disturbance due toloss of some part of the bone. Instability of the mandible can cause aesthetic, physiological, and psychological malfunctioning. To restore its stability, installment of mandibular reconstruction plate on the remaining mandibular by using screws. However, it is not uncommon that plate exposure occurs following mandibular reconstruction, caused by inaccurate adaptation of the plates to the mandibular bone. A 3D stereolithography modelcan help provide the best assesment on the bone defect, plan the making of the more easily pre-operative curved plates and provide more accurate faster surgery time. Objective: To evaluate plate exposure after mandibular resection with titanium reconstruction plates in Dr. SardjitoHospital. Case report: A case was reported on mandibular reconstruction after resection of ameloblastoma with titanium plate performed in Dr. Sardjito Hospital that experienced intra-oral plate exposure and oro-cutaneous fistula on the left mandible. The clinical evaluation showed the curved titanium plate did not adapt well with the remaining mandibular bone; therefore, the titanium plate was removed without replacing it with a new plate. Inappropriate adaptationof curved titanium plate is one of the main causes of plate exposure. The use of a 3D stereolithography model is very helpful for the success of mandibular reconstruction.
Universitas Gadjah Mada
2017-08-30 14:46:22
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/24222
Jurnal Teknosains; Vol 5, No 2 (2016): June
eng
https://jurnal.ugm.ac.id/teknosains/article/download/24222/48173
Copyright (c) 2017 Maria Goreti Widiastuti
oai:jurnal.ugm.ac.id:article/26853
2017-07-26T03:39:36Z
teknosains:ART
nmb a2200000Iu 4500
"170726 2017 eng "
2443-1311
2089-6131
dc
POTENSI TANAMAN DI TAMAN NASIONAL PULAU JAWA SEBAGAI SUMBER BAKTERI PENGHASIL ANTIBIOTIK
Yuwantiningsih, Sri
Akademi pertanian Yogyakarta
Margino, Sebastian
Program Studi Bioteknologi Sekolah PascasarjanaUniversitas Gadjah Mada
Wahyuono, Subagus
Program Studi Bioteknologi Sekolah PascasarjanaUniversitas Gadjah Mada
Array
Bacterial endophytes in trees are potential source to obtain new antibiotic producers that have not been widely studied until now. This study aims to obtain bacterial endophytes isolates in the tissue of twig trees in National Park Banten, Indonesia Germplasm Garden (The Bogor Botanical Gardens), Cilacap Nusakambangan Island, Kaliurang National Park, Meru Betiri National Park Jember, and Baluran National Park, Situbondo. This selection was based on the growth ability in liquid nutrient, GY (glucose and yeast-extract), and antibiotic-3, and the ability to obstruct indicator microbes, such as Bacillus subtilis, Candida albicans, and Fusarium oxysporum. The selection result is obtained eight isolates that have inhibitory effect more than 4, such as BIN-1, KLP-1, OOH-1, STG-1, CMB-2, STL-1, MTG-1, and PPH-1. Based on chromatography method on various eluents, it is obtained three superior isolates, i.e OOH-1 ,STG-1, and CMB-2. Thus, this shows that bacterial endophytes in trees constitute potential sources for screening new antibiotic producers.
Universitas Gadjah Mada
2017-07-26 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/26853
Jurnal Teknosains; Vol 5, No 1 (2015): December
eng
Copyright (c) 2017 Sri Yuwantiningsih, Sebastian Margino, Subagus Wahyuono
oai:jurnal.ugm.ac.id:article/26854
2017-08-28T05:55:59Z
teknosains:ART
nmb a2200000Iu 4500
"170726 2017 eng "
2443-1311
2089-6131
dc
ANALISIS KEBUTUHAN DAN KETERSEDIAAN AIR DI DAS KEDUANG JAWA TENGAH
Kumalajati, Erlynda
Balai Pendidikan dan Pelatihan Kehutanan Kupang
Sabarnudi, Sambas
Program Studi Ilmu Kehutanan, Fakultas Kehutanan
Universitas Gadjah Mada
Budiadi, Budiadi
Program Studi Ilmu Kehutanan, Fakultas Kehutanan
Universitas Gadjah Mada
Sudira, Putu
Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Gadjah Mada
Array
This study aims to examine the balance between the availability and water need in the present and the future in Keduang Watershed, Central Java. The water need is calculated by using the standard water need for irrigation and non-irrigation. Types of non-irrigation water need encompass the water need for domestic, office, and the facilities of health, education, religious duties, industry, and market, as well as livestock. The standard water need is from SNI 19-6728.1-2002 and Planning Criteria of Directorate General of Human Settlements of Department of Public Works in 1996. This study uses socio-economic data in 2013. The availability of water is calculated by using Soil Conservation Service Curve Number (SCS CN) from USDA with the hydrological data from 2005 to 2013. This study uses data in 2013, due to the limitations of the data that can be obtained. In the analysis of availability and water need, hydrological, and spatial data are projected until 2033 and analyzed using quantitative analysis in the form of descriptive statistics. The result shows that 1) from year to year in Keduang watershed, the water need is increasing with an average increase of 3.38%, while the water availability is decreasing with an average decrease of 0.09%. 2) Water deficit will begin in 2023, when the water need is reaching 115,306,568.00 m3/year, whereas the water availability only 112,250,656.00 m3/year. From this calculation, it can be concluded that if there is no effort to change the trend of land cover that lead to the goal of water conservation, then, the water availability will not able to cover the water need. Thus, in the future, Keduang watershed will occur water deficit.
Universitas Gadjah Mada
2017-07-26 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/26854
Jurnal Teknosains; Vol 5, No 1 (2015): December
eng
Copyright (c) 2017 Erlynda Kumalajati, Sambas Sabarnudi, Budiadi Budiadi, Putu Sudira
oai:jurnal.ugm.ac.id:article/26855
2017-08-28T05:55:59Z
teknosains:ART
nmb a2200000Iu 4500
"170726 2017 eng "
2443-1311
2089-6131
dc
SIMULASI ALIRAN PASIEN RAWAT INAP UNTUK MENGURANGI BOTTLENECK
Soegiharto, Thomas Sonny
Jurusan Teknik Mesin dan Industri Fakultas Teknik, Universitas gadjah Mada
Asih, Anna Maria Sri
Department of Mechanical and Industrial Engineering, Gadjah Mada University, Yogyakarta, Indonesia
Array
Bottleneck is possible to occur in a system like hospital, especially in admission and discharge of inpatient processes. It can have impact on increasing waiting time and delayed time. Some alternatives were proposed to reduce them, i.e. shift scheduling and human resource allocation. This research modelled real system accompanied by two scenarios: the first scenario was conducted by balancing human resource utility without altering number of employees, whereas the second scenario considered possibility of changing number of employees. The results showed that both scenarios produced reduction of waiting time and delayed time. The first scenario is more feasible compared to the second as no hiring or firing employees occurred, resulting in waiting time reduction of 110.6 minutes (15%) and decrease in delayed time by 184 minutes (15.9%). The reduction of waiting time and delayed time is higher in scenario 2, which are 423.6 minutes (57%) and 281 minutes (24%), respectively. However, there must be 4 additional employees hired in pharmacy applied in scenario 2.
Universitas Gadjah Mada
2017-07-26 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/26855
Jurnal Teknosains; Vol 5, No 1 (2015): December
eng
Copyright (c) 2017 Thomas Sonny Soegiharto, Anna Maria Sri Asih
oai:jurnal.ugm.ac.id:article/26856
2017-08-28T05:55:59Z
teknosains:ART
nmb a2200000Iu 4500
"170726 2017 eng "
2443-1311
2089-6131
dc
DANAU-DANAU VOLKANIK DI DATARAN TINGGI DIENG: PEMANFAATAN DAN MASALAH LINGKUNGAN YANG DIHADAPI
Sudarmadji, Sudarmadji
Program Studi Ilmu Lingkungan Sekolah Pascasarjana, Universitas Gadjah Mada
Supriyono, Hari
Program Studi Ilmu Lingkungan Sekolah Pascasarjana , Universitas Gadjah Mada
Lestari, Sri
Mahasiswa Program Doktor Ilmu Lingkungan, Program Studi Ilmu Lingkungan, Sekolah Pascasarjana, Universitas Gadjah Mada
Array
Volcanic lakes in the Dieng Plateau are famous because of their uniqueness; they have been used for various purposes. The area of Dieng Plateau has changed. The present land use is manly for the area of potato-producing farmland. In the area erosion process caused sedimentation in the lake to occur rapidly, it reduced the volume of the lake and water pollution. On the other hand, Dieng Local communities have been using water of these lakes. This study aims to: 1)inventory of volcanic lakes and environmental impacts that occur; 2. assess the environmental degradation in the area Dieng volcanic lake; and 3. assess the wisdom of local communities in the utilization of the lake. In this research, there are four lakes, namely Telaga Warna and Pengilon (as one unit), Telaga Merdada and Telaga Cebong were studied. This research was conducted by survey method. Field observation and interview with respondents were conducted. Water samples were collected from the lakes, followed laboratory analysis. Results of this study indicate that each lake has different potentials and problems. Telaga Warna and Pengilon potential as a tourist attraction that can be developed further, Telaga Merdada already in critical condition as a result of sedimentation and reducing of water volume, while the Telaga Cebong has a better conditions as local awareness for the conservation of the lake.
Universitas Gadjah Mada
2017-07-26 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/26856
Jurnal Teknosains; Vol 5, No 1 (2015): December
eng
Copyright (c) 2017 Sudarmadji Sudarmadji, Hari Supriyono, Sri Lestari
oai:jurnal.ugm.ac.id:article/26857
2017-08-28T05:55:59Z
teknosains:ART
nmb a2200000Iu 4500
"170726 2017 eng "
2443-1311
2089-6131
dc
SIMULASI ANTRIAN UNTUK APPOINTMENT SCHEDULING PADA SISTEM PELAYANANKESEHATAN (STUDI KASUS POLIKLINIK PENYAKIT DALAM)
Sari, Diyah Pramita
Jurusan Teknik Mesin dan Industri, Gadjah Mada University, Yogyakarta, Indonesia
Asih, Anna Maria Sri
Department of Mechanical and Industrial Engineering, Gadjah Mada University, Yogyakarta, Indonesia
Array
Hospital as a health institution must be able to give good services for its stakeholders, especially patients. However, patients often have to wait for quite a long time in queues before service. A study case in an internal medicine polyclinic in a large scale hospital in Yogyakartashowed that for around 60 patients in a day, they have to stay in queues for more than one hour averagely. This observation occurred when appointment scheduling was used, i.e. patient must make an appointment for the service time. This research evaluated some scenarios that can reduce the waiting time in this system. Results showed that patient’s arrival was recommended to be schedulled every 15 minutes with adjustment on the number of operating server. This recommendation can reduce patient’s waiting time by 28-50% by taking into account the presence of the late doctors.
Universitas Gadjah Mada
2017-07-26 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/26857
Jurnal Teknosains; Vol 5, No 1 (2015): December
eng
Copyright (c) 2017 Diyah Pramita Sari, Anna Maria Sri Asih
oai:jurnal.ugm.ac.id:article/26858
2017-08-28T05:55:59Z
teknosains:ART
nmb a2200000Iu 4500
"170726 2017 eng "
2443-1311
2089-6131
dc
PEMETAAN KOLABORATIF SITUASIONAL PADA KONDISI DARURAT
Wahyuni, Yusri Habibah
Pascasarjana Teknik Industri Universitas Gadjah Mada
Hartono, Budi
Jurusan Teknik Mesin dan Industri Universitas Gadjah Mada
Array
The first step to do disaster management accurately is getting comprehensive information about disaster. A situational map is the overview of the disaster situation based on geo-spatial information at a particular time. This map is a tool which can gain comprehensive information in emergency. This study aims to complement earlier research with re test confidence level variable that is divided for object detection, type, and location. Besides this study examines collecting information system in emergency situation model that used to be used by police agencies which is using mediator. this study is conducted by experiments that involved 48 participants that were divided in 16 groups. The participants sample consisted of wide variety of different majority and educational level in UGM and non UGM with age range between 19 and 29 years old (Mean = 24; SD = 2.68). The whole experiments are collaboration, collaboration with confidence level and collaboration with mediator. Assessments of experiment accuracy were used three kinds which are checklist, detection and position of objects. Another factor that is considered is prior knowledge of mediator and respondent. This study using α = 5% and ANOVA showed position information more accurate with confidence level model. Other information like checklist and detection could using all model. Prior knowledge have not affected in improving map accuracy.
Universitas Gadjah Mada
2017-07-26 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/26858
Jurnal Teknosains; Vol 5, No 1 (2015): December
eng
Copyright (c) 2017 Yusri Habibah Wahyuni, Budi Hartono
oai:jurnal.ugm.ac.id:article/26972
2017-08-30T08:50:08Z
teknosains:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
2089-6131
dc
METODE KLASIFIKASI MUTU JAMBU BIJI MENGGUNAKAN KNN BERDASARKAN FITUR WARNA DAN TEKSTUR
Prahudaya, Taftyani Yusuf
Harjoko, Agus
Gadjah Mada University http://acadstaff.ugm.ac.id/aharjoko http://orcid.org/0000-0001-8677-9593
Array
Guava (Psidium guajava L.) is a fruit that has many health benefits. Guava also has commercial value in Indonesia and has a large market share. This indicates that the commodity of guava has been consumed by society extensively. This time the sorting process is still done manually which still has many shortcomings. This classification gives the classification results are less accurate and inconsistent due to the carelessness of humans. Grading process in the marketing sector is essential. Improper grading potentially detrimental to farmers because all the fruit quality were priced the same. Therefore, we need a consistent classification system.The system uses image processing to extract the color and texture features of guava. As a quality classification KNN method (K-Nearest Neighbor) is used. This system will classify guava into four quality classes, namely the super class, class A, class B, and external quality. KNN designed with input 7 features extraction which is the average value of RGB (Red, Green, and Blue), total defect area, and the GLCM value (entropy, homogeneity, and contrast) with the 4 outputs of quality. From the test results showed that the classification method is able to classify the quality of guava. The highest accuracy is obtained in testing K = 3 with 91.25% accuracy rate.
Universitas Gadjah Mada
2017-08-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/26972
Jurnal Teknosains; Vol 6, No 2 (2017): June
eng
Copyright (c) 2017 Taftyani Yusuf Prahudaya, Agus Harjoko
oai:jurnal.ugm.ac.id:article/27101
2018-09-07T18:03:48Z
teknosains:ART
nmb a2200000Iu 4500
"180908 2018 eng "
2443-1311
2089-6131
dc
PENENTUAN LOKASI TEMPAT EVAKUASI AKHIR PENGUNGSI PADA ANCAMAN BENCANA TSUNAMI KOTA PADANG
Fijra, Rafiqa
Universitas Gadjah Mada
Array
Padang is capital city of West Sumatera whose coastal layout and approximately 50% of population live in low area. It opposites to the Indian Ocean which near the Megathrust subduction which can trigger a powerful earthquake and generate tsunami. Because of the potential risk, important to finding the final evacuated region (TEA) location addressed by evacuee of each affected village, and defining the evacuee population and its susceptive population on each TEA. Defining the location TEA is provided by formulating the linear programming model which minimizing the total traveled distance. Then, defining of population and susceptive of evacuee in each TEA also analyzed to support the response disaster occurred. The optimization model is conducted in three level scenarios of tsunami scale, that are big, medium, and small .
Universitas Gadjah Mada
2018-09-08 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/27101
Jurnal Teknosains; Vol 7, No 2 (2018): June
eng
Copyright (c) 2018 Rafiqa Fijra
oai:jurnal.ugm.ac.id:article/27104
2017-08-30T07:56:41Z
teknosains:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
2089-6131
dc
ANALISIS PENGARUH DIMENSI BUDAYA TERHADAP NIAT MELAKUKAN WHISTLEBLOWING : PERBANDINGAN ANTARA MAHASISWA DAN ENGINEER
Finandari, Dessy
Program Studi Pascasarjana Tenik Indusri, Universitas Gadjah Mad,a Yogyakarta
Wijayanto, Titis
Program Studi Pascasarjana Tenik Indusri,
Universitas Gadjah Mada, Yogyakarta
Array
This study aims to investigate the differences between engineering students and engineers on whistleblowing intentions, the effect of cultural dimensions on whistleblowing intentions, and the effect of ethnic differences on whistleblowing intentions. Each respondent was faced with three cases: a case involving a superior, a case involving a colleague, and an unknown case who was responsible. Each respondent is asked to provide an assessment related to the seriousness of cases, responsibilities and intentions to conduct whistleblowing internally or externally. Result indicate that students have intention to do internal whistleblowing higher than engineer. The lower the power distance, the higher the internal whistleblowing intention. The higher collectivism and long-term orientation, the higher the internal whistleblowing intention. Significant ethnic differences in intent to conduct whistleblowing are found in internal whistleblowing for unknown cases, and external whistleblowing in cases involving superiors
Universitas Gadjah Mada
2017-08-30 14:58:36
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/27104
Jurnal Teknosains; Vol 6, No 1 (2016): December
eng
Copyright (c) 2017 Dessy Finandari
oai:jurnal.ugm.ac.id:article/27192
2017-08-30T07:56:08Z
teknosains:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
2089-6131
dc
ROLE OF REDUCING CELL LEAKAGE IN CELL CULTURE USING LARGE PORE SIZE PERMEABLE MEMBRANE
Kaliwantoro, Nur
Histology and Cells Biology Department-Medical Faculty, Universitas Gadjah Mada
Soesatyo, Marsetyawan HNE
Histology and Cells Biology Department-Medical Faculty Universitas Gadjah Mada
Indarto, Indarto
Mechanical Engineering Department, Engineering Faculty Universitas Gadjah Mada
Juffrie, Mohammad
Pediatric Department, Medical Faculty Universitas Gadjah Mada
Dharmastiti, Rini
Industrial Engineering Department, Engineering Faculty Universitas Gadjah Mada
Suprihatin, Suprihatin
Parasitology Laboratory, Medical Faculty Universitas Gadjah Mada
Array
Permeable membranes are widely used in many in vitro studies using cell culture. Some cell leakage are often occurs when using permeable membrane with large pore size. Unfortunately the use of permeable membrane with smaller pore size in permeability studies faces some difficulties due to its small pore size and pore density. Recent study provides the protocol in using permeable membrane with large pore size with smaller cell leakage. Vero cell line (CCL-81, ATCC) was used and culture on polyester permeable membrane with 3 µm pore size. Visualization using inverted microscope was used to analized the cell leakage on the permeable membrane. Parallel plate flow chamber was used to analized the permeability performance of the Vero cell cultured on the permeable membrane. The result showed that the current technique is significant in reducing cell leakage of the cell cultured on large pore size of permeable membrane. The same results were found in using polyester and polycarbonate permeable membrane.
Universitas Gadjah Mada
2017-08-30 14:58:36
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/27192
Jurnal Teknosains; Vol 6, No 1 (2016): December
eng
https://jurnal.ugm.ac.id/teknosains/article/download/27192/58024
https://jurnal.ugm.ac.id/teknosains/article/download/27192/58026
Copyright (c) 2016 Nur Kaliwantoro, Marsetyawan HNE Soesatyo, Indarto Indarto, Mohammad Juffrie, Rini Dharmastiti, Suprihatin Suprihatin
oai:jurnal.ugm.ac.id:article/27580
2017-08-29T07:12:36Z
teknosains:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
2089-6131
dc
UJI SITOKSISITAS CAMPURAN RESIN AKRILIK DENGAN KITOSAN SEBAGAI BAHAN GIGI TIRUAN ANTI JAMUR
Ismiyati, Titik
Fakultas Kedokteran Gigi, Universitas Gadjah Mada
Siswomihardjo, Widowati
Fakultas Kedokteran Gigi, Universitas Gadjah Mada
Soesatyo, Marsetyawan H.N.E.
Fakultas Kedokteran Umum, Universitas Gadjah Mada
Rochmadi, Rochmadi
Fakultas Teknik, Universitas Gadjah Mada
Array
Denture acrylic resin contain monomer residue that can cause allergic reactions and inflammation in the mouth. Chitosan has advantage biocompatible and antifungal. The purpose of this study was to examine toxicity acrylic resin blends with chitosan as denture antifungal in fibroblast cell culture. This study uses chitosan concentration 0.5%, 1%, 2% and 4% of 2.5 ml were blends with acrylic resin. Fibroblast cell cellular responses were assessed using MTT assay. Data at the cell viability analyzes used Anova one path (p <0.05). The results showed the greatest average adsorbansi fibroblast cell in blends acrylic resin was chitosan concentration of 0.5% (0.434 ± 0.119) with 99.810% cell viability, and the smallest average chitosan concentration of 4% (0.385 ± 0.023) and 88.523% cell viability. Anova test showed there were differences the effect of varying concentrations of chitosan significantly to adsorbansi and cell viability (p <0.05). The results of post hoc test showed a concentration of 4% was significantly different than other concentration. Conclusion, acrylic resin blends with chitosan at a concentration of 0.5%, 1%, 2% were non-toxic, being mild toxic concentration of 4%.
Universitas Gadjah Mada
2017-08-30 14:46:22
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/27580
Jurnal Teknosains; Vol 5, No 2 (2016): June
eng
Copyright (c) 2017 Titik Ismiyati, Widowati Siswomihardjo, Marsetyawan H.N.E. Soesatyo, Rochmadi Rochmadi
oai:jurnal.ugm.ac.id:article/27581
2017-08-29T07:22:21Z
teknosains:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
2089-6131
dc
OPTIMIZATION OF MUNICIPAL WASTE COLLECTION POINTS IN YOGYAKARTA CITY- INDONESIA
Sopha, Bertha Maya
SCOPUS ID= 35729832600, Gadjah Mada University, Department of Mechanical and Industrial Engineering, Yogyakarta
Haryoto, Alditya Perkasa Sri
Array
Uneven capacity utilization seems to be a constant problem in Yogyakarta waste management system. The problem is worsen by lack of a decision tool to evaluate the system and formulate appropriate strategy.This present study therefore aims atevaluatingthe performance of existing waste management systemandoptimizingmunicipal waste collection points. A mathematical model of MixedIntegerLinearProgramming was developed and implemented inLingo 9. Findings show that the current waste management system is associated to daily total cost of about IDR 10 million and capacity utilization of 88%. Scenarios are developed to examine the optimized system. Findings suggest that current municipal waste can be handled with 35 collection points involving 15 depots and 20 containers. The optimized system is corresponding to IDR 6.3 millionand the capacity utilization of 99%, which makes a reduced cost of 37% and an increasedcapacity utilization of 13% in comparison to the performance of the existing system. Based on sensitivity analysis,volume of municipal waste appears to be influential factor toward the total cost and network structure. Limitation of the model is also discussed.
Universitas Gadjah Mada
2017-08-30 14:46:22
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/27581
Jurnal Teknosains; Vol 5, No 2 (2016): June
eng
Copyright (c) 2017 Bertha Maya Sopha, Alditya Perkasa Sri Haryoto
oai:jurnal.ugm.ac.id:article/27589
2017-08-30T08:50:08Z
teknosains:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
2089-6131
dc
NON SURGICAL LATROGENIC PERFORATION REPAIR USING MINERAL TRIOXIDE AGGREGATE AND DIRECT RESTORATION WITH FIBER POST ON CENTRAL MAXILLARY INCISOR
Pribadi, Hendargo Agung
Departemen Konservasi Gigi, Fakultas Kedokteran Gigi, Universitas Gadjah Mada, Yogyakarta
Kristanti, Yulita
Departemen Konservasi Gigi, Fakultas Kedokteran Gigi, Universitas Gadjah Mada, Yogyakarta
Array
Perforation can be a problem that leading to root canal treatment failure in the long run. Perforation can be caused by iatrogenic factor. The most common iatrogenic perforation was found at maxillary anterior. Non surgery iatrogenic perforation repair can be done using mineral trioxide aggregate and direct restoration. The purpose of this case report was to describe non surgical iatrogenic perforation repair using mineral trioxide aggregate and direct restoration with fiber post. A 27 years old male patient diagnosed for pulpitis came to RSGM Prof. Soedomo. Root canal treatment (pulp extirpation) had performed before he was referred for further treatment. Objective test showed both percussion and palpation were negative. From periapical radiograph could be noticed that there was no file left in the root canal. Root canal treatment was performed using step back technique and lateral condensation. Perforation was sealed by mineral trioxide aggregate. The tooth was restored using direct restoration with fiber post. Latrogenic perforation can be treated non surgically using mineral trioxide aggregate and directly restored using composite resin with fiber post.
Universitas Gadjah Mada
2017-08-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/27589
Jurnal Teknosains; Vol 6, No 2 (2017): June
eng
Copyright (c) 2017 Hendargo Agung Pribadi, Yulita Kristanti
oai:jurnal.ugm.ac.id:article/27596
2017-08-30T08:50:08Z
teknosains:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
2089-6131
dc
MANAGEMENT OF MISALIGNED CROWN FRACTURE WITH EXTERNAL ROOF RESORPTION USING MINERAL TRIOXIDE AGGREGATE (MTA) AND CUSTOM CAST POST AND CORE RESTORATION
Kuncoro, Rebecca Azary
Residen Konservasi Gigi, Fakultas Kedokteran Gigi, Universitas Gadjah Mada, Yogyakarta
Kristanti, Yulita
Departemen Konservasi Gigi, Universitas Gadjah Mada, Yogyakarta
Array
Crown fracture is the most commonly reported traumatic injuries in the permanent dentition. One of the unfavorable response to trauma is the development of external root resorption (ERR). Injuries may also cause tooth angulation changes so it should be treated with a customized cast post and core to produce better aesthetic result and to obtain sufficient compressive strength.The case report describes the use of mineral trioxide aggregate (MTA) as an apical plug to promote periapical healing of an open apex and the use of custom cast post and core to correct the tooth angulation.Case report.A 23-year-old male patient came to RSGM Prof. Soedomo with a chief complaint of a fractured and labial misaligned of upper right central incisor due to trauma 10 years ago. Patient expressed his unwillingness to get orthodontic therapy. Percussion and palpation test showed no discomfort or pain. There was no mobility noticed. Radiograph showed periapical radiolucency and open apex. Tooth was treated with calcium hydroxide dressing and MTA apical plugs were placed in the apical portion of canals. Tooth was restored with custom cast post and core to correct the angulation followed by the placement of an porcelain crown.MTA can be used as apical plug for sealing open apex caused by ERR combined with custom cast post and core for other option for misaligned tooth.
Universitas Gadjah Mada
2017-08-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/27596
Jurnal Teknosains; Vol 6, No 2 (2017): June
eng
Copyright (c) 2017 Rebecca Azary Kuncoro, Yulita Kristanti
oai:jurnal.ugm.ac.id:article/27616
2017-08-30T07:56:16Z
teknosains:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
2089-6131
dc
APLIKASI JARINGAN SARAF TIRUAN DAN PARTICLE SWARM OPTIMIZATION UNTUK PERAMALAN INDEKS HARGA SAHAM BURSA EFEK INDONESIA
Wartati, Desy
Masruroh, Nur Aini
SCOPUS ID= 9846464900, Gadjah Mada University, Yogyakarta
Array
Jakarta Composite Index (JCI) is the main stock index in Indonesia Stock Exchange, which indicates the movement of the performance of all stocks listed. The data of stock price index often experience rapid fluctuations in a short time, so it is needed to carry out an analysis to help investor making the right investment decisions. Forecasting JCI is one of the activities that can be done because it helps to predict the value of the stock price in accordance with the past patterns, so it can be a consideration to make a decision. In this research, there are two forecasting models created to predict JCI, which are Artificial Neural Network (ANN) model with (1) Backpropagation algorithm (BP) and (2) Backpropagation algorithm model combined with Particle Swarm Optimization algorithm (PSO). The development of both models is done from the stage of the training process to obtain optimal weights on each network layer, followed by a stage of the testing process to determine whether the models are valid or not based on the tracking signals that are generated. ANN model is used because it is known to have the ability to process data that is nonlinear such as stock price indices and PSO is used to help ANN to gain weight with a fast computing time and tend to provide optimal results. Forecast results generated from both models are compared based on the error of computation time and forecast error. ANN model with BP algorithm generates computation time of training process for 4,9927 seconds with MSE of training and testing process is respectively 0,0031 and 0,0131, and MAPE of forecast results is 2,55%. ANN model with BP algorithm combined with PSO generates computation time of training process for 4,3867 seconds with MSE of training and testing process is respectively 0,0030 and 0,0062, and MAPE of forecast result is 1,88%. Based on these results, it can be concluded that ANN model with BP algorithm combined with PSO provides a more optimal result than ANN model with BP algorithm.
Universitas Gadjah Mada
2017-08-30 14:58:36
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/27616
Jurnal Teknosains; Vol 6, No 1 (2016): December
eng
Copyright (c) 2017 Desy Wartati, Nur Aini Masruroh
oai:jurnal.ugm.ac.id:article/27664
2017-08-30T07:46:22Z
teknosains:EDT
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
2089-6131
dc
EDITORIAL
Siswomihardjo, Widowati
Array
Universitas Gadjah Mada
2017-08-30 14:46:22
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/27664
Jurnal Teknosains; Vol 5, No 2 (2016): June
eng
Copyright (c) 2017 Widowati Siswomihardjo
oai:jurnal.ugm.ac.id:article/27665
2017-08-30T07:46:22Z
teknosains:BR
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
2089-6131
dc
MENYELAMI ILMU BIOLOGI MOLEKULER DAN GENETIKA DARI BUKU GENOMES 3
Ruspita, Intan
Array
Buku Genomes 3 merupakan buku yang sangat dianjurkan untuk dibaca oleh ilmuwan di era yang sangat pesat akan perkembangan ilmu pengetahuan dan teknologi, khususnya dibidang ilmu molekuler biologi dan genetika. Penulisan buku ini telah disusun dengan sangat hati hati agar mudah dipahami oleh pembaca dan dilengkapi dengan CD-ROM yang dapat dilihat dalam dua format, power point dan JPEG.
Universitas Gadjah Mada
2017-08-30 14:46:22
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/27665
Jurnal Teknosains; Vol 5, No 2 (2016): June
eng
Copyright (c) 2017 Intan Ruspita
oai:jurnal.ugm.ac.id:article/27826
2017-08-30T07:58:36Z
teknosains:EDT
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
2089-6131
dc
EDITORIAL
Siswomihardjo, Widowati
Department of Biomaterials, Faculty of Dentistry, Universitas Gadah Mada, Yogyakarta
Array
Universitas Gadjah Mada
2017-08-30 14:58:36
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/27826
Jurnal Teknosains; Vol 6, No 1 (2016): December
eng
Copyright (c) 2017 Widowati Siswomihardjo
oai:jurnal.ugm.ac.id:article/27828
2017-08-30T07:58:36Z
teknosains:BR
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
2089-6131
dc
FUNDAMENTA LS OF BIOMECHANIC BIOMEDICAL ENGINERING
Sriwijaya, Rachmat
Pengajar Dasar-dasar Keteknikan pada Minat Rekayasa Biomedik Pascasarjana, Universitas Gadjah Mada
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Studi tentang biomechanics telah berkembang pesat dari awalnya hanya aplikasi studi mekanika teknik yang sederhana kemudian meluas dengan pelibatan berbagai bidang studi. Dalam bidang biomechanics buku ini sangat membantu mahasiswa ataupun peneliti untuk memahami dasar-dasar mekanika dan dinamika tubuh manusia, yang menjadi bidang kajian penting dalam studi rekayasa biomedik. Buku ini memberikan pengetahuan yang memadai tentang konsep statika, gerak, dinamika, pemodelan, dan aplikasinya dikaitkan dengan bagian-bagian tubuh dan gerakan manusia, hal-hal yang sangat penting yang seharusnya diketahui dalam pengembangan biomechanics, tetapi sebelumnya sangat jarang untuk didapatkan pustakanya.
Universitas Gadjah Mada
2017-08-30 14:58:36
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/27828
Jurnal Teknosains; Vol 6, No 1 (2016): December
eng
Copyright (c) 2017 Rachmat Sriwijaya
oai:jurnal.ugm.ac.id:article/27869
2017-08-30T08:50:08Z
teknosains:EDT
nmb a2200000Iu 4500
"170830 2017 eng "
2443-1311
2089-6131
dc
EDITORIAL
Siswomihardjo, Widowati
Department of Biomaterials, Faculty of Dentistry, Universitas Gadah Mada, Yogyakarta, Indonesia
Array
Universitas Gadjah Mada
2017-08-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/teknosains/article/view/27869
Jurnal Teknosains; Vol 6, No 2 (2017): June
eng
Copyright (c) 2017 Widowati Siswomihardjo
7f20936ca76878b625fdba84a2072d63