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Tangguh Okta Wibowo
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teknosains@ugm.ac.id
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+628995674422
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teknosains@ugm.ac.id
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Gedung Lengkung, Unit 1, Lantai 2, Sayap Timur Sekolah Pascasarjana Universitas Gadjah Mada Jalan Teknika Utara, Pogung, Sleman- Yogyakarta Telp. (0274-564239 extc. 207)
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Daerah istimewa yogyakarta
INDONESIA
Jurnal Teknosains
Published by Universitas Gadjah Mada
ISSN : 20896131     EISSN : 24431311     DOI : https://doi.org/10.22146/teknosains.xxxx
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Industrial & Manufacturing Engineering Mechanical Engineering
Jurnal Teknosains is a peer-reviewed journal which began publication in 2011, and published each semester in June and December. It is a series of scientific publications in engineering, science and technology area. Jurnal Teknosains aims to encourage research in Science and Technology studies. Topics addressed within the journal include but not limited to: Engineering, which is divided into several topics: Mechanical Engineering, Industrial Engineering, Biomedical Engineering, Chemical Engineering, Nuclear and Physical Engineering, Civil Engineering, and Planology. Basic Sciences, which is divided into: Chemistry and Physics Health Sciences, which is divided into: Medical, Biotechnology specially in Health Science, and Dentistry
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 224 Documents
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PEMANFAATAN CITRA IKONOS UNTUK IDENTIFIKASI OBJEK PAJAK BUMI DAN BANGUNAN Wiji Lestari
Jurnal Teknosains Vol 1, No 2 (2012): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/teknosains.5880

Abstract

Ikonos satellite image is an image that has a high spatial resolution with pixel accuracy of one meter for panchromaticand 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.Untukdetermine the ability of Ikonos imagery in the identification of objects Land and Building Tax (PBB) conductedresearch that aims to determine the accuracy of the interpretation of Ikonos imagery for identification of objectsUN, UN to map objects based on Ikonos imagery interpretation, field survey and evaluate the results of BlockMaps uses map image interpretation Ikonos.Penelitian geografi.Pengumpulan using descriptive methods of datais done through the interpretation of Ikonos imagery, field tests, interviews and documentation. Data analysis isthe analysis of the level of image interpretation, analysis and map overlay analysis. The results showed that thelevel of interpretation of Ikonos imagery for identification of objects and the United Nations is 89.54% commissionerror is 10.46%. Results from a block map using Ikonos imagery interpretation of evaluation results have not yetregistered 269 objects in the map of Block UN tax. Can be concluded that the Ikonos imagery can be used as theprimary data source for identification of objects.Key words: Ikonos image, image interpretation, object identification, remote sensing, object of property tax.
EKSPLORASI KEANEKARAGAMAN HERPETOFAUNNA DI KECAMATAN GIRIMULYO KABUPATEN KULON PROGO YOGYAKARTA Tony Febri Qurniawan
Jurnal Teknosains Vol 1, No 2 (2012): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/teknosains.5881

Abstract

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 (VisualEncounter Survey) method were used and combined with interview method.. A total of 40 species of herpetofaunaare 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.
EQUITABLE ACCESS TO HEALTH SERVICE IN BANYUWANGI Lusi Herawati Sunyoto Usman Mark Zuidgeest
Jurnal Teknosains Vol 1, No 2 (2012): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/teknosains.5974

Abstract

Equitable health care is a basic right for citizens and must be fulfilled by the government. This research analyzed communitydiscrepancy 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 choiceas 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.
EFFECT OF AIR JET COOLING ON SURFACE ROUGHNESS AND TOOL WEAR Paryanto Rusnaldy dan Tony S. Utomo
Jurnal Teknosains Vol 1, No 2 (2012): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/teknosains.5976

Abstract

The main goal of this work is to investigate the use of air jet cooling on machining process. Surface roughnessand tool are chosen as parameter to analyze of air jet cooling effects; and turning process with AISI 1010 materialused in the experimental study. Surface roughness was measured for several air jet pressures and in two air jetpositions. Every five minutes of machining time, tool wear was measured until reach 30 minutes. Initial resultsshow that the use of air jet cooling with proper selection of position and pressure; possible to reduce tool wear andto increase surface roughness.
A SUSTAINABLE SUPPLY CHAIN MODEL OF RELATIONSHIP BETWEEN WOOD SUPPLIER AND FURNITURE INDUSTRY IN INDONESIA Muh. Hisjam Adi Djoko Guritno and Shalihuddin Djalal Tandjung
Jurnal Teknosains Vol 1, No 2 (2012): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/teknosains.5977

Abstract

Wooden furniture industry is an important industry sector in Indonesia, because many people’s welfare relyon this industry sector and the industry has a big social and environmental impacts. Many wooden furnitureindustries in Indonesia, especially in Central Java Province face problems related to the sustainability. The relationbetween 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.
SCAFFOLD DARI BOVINE HYDROXYAPATITE DENGAN POLY VYNIALCHOHOL COATING Alva Edy Tontowi, Punto Dewo, Endang Tri Wahyuni, dan Joko Triyono
Jurnal Teknosains Vol 1, No 2 (2012): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/teknosains.5978

Abstract

In Indonesia, it is about 40% patients with hard tissue defect due to ostheoporosis, cancer or accidents and therest are defect since they have born.For many years, efforts for recovering have been done by transplantation orimplantation methods.Transplantation is more appropriate butit is not sustain because of limited donor, whileimplantation using synthetic materials such as bioceramics scaffoldis expensive due to import and the scaffold iseasier to break which does not match to the medical requirements.The research therefore has been addressed to thisissue. 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 5mmx5mmx5mmand boil it in a distilled water to remove its organic material. It was then heated up at 900 oC for 2 hours infurnace to obtain bovine hydroxyapatite scaffold (bHA). Coating process has been carried out by dip coating of thebHAscaffold in PVA solution.
BERMULA DARI MIMPI MEWUJUDKAN INOVASI M.K. Herliansyah
Jurnal Teknosains Vol 1, No 2 (2012): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/teknosains.5979

Abstract

Kemakmuran suatu bangsa tergantung pada kemampuannya memanfaatkan sumbersumberalam dan mengembangkan serta memproduksi suatu produk. Bahkan kemampuanmengembangkan serta memproduksi suatu produk merupakan komponen terpentingpenentu tingkat kemakmuran ekonomi suatu bangsa. Bukti-bukti telah menunjukkan banyakbangsa-bangsa di dunia yang miskin sumber alam, tetapi memiliki tingkat kemakmuranyang tinggi karena keunggulannya dalam kemampuan mengembangkan serta memproduksiproduk-produk baru dan unggul.
IDENTIFIKASI EFEK DEPRESAN SSP (SUSUNAN SARAF PUSAT) ANTIKEJANG DAN NEUROTOKSISITAS SENYAWA 4-KLOROBENZOILTIOUREA PADA MENCIT PUTIH JANTAN Aguslina kirtishanti dan Dini Kesuma
Jurnal Teknosains Vol 2, No 1 (2012): December
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/teknosains.5980

Abstract

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. 
PROSES PENGELOLAHAN MENINGKATKAN AKTIVITAS HIPOLIPIDEMIK JAMUR TIRAM (PLEUROTUS OSTREATUS) PADA TIKUS (RATTUS NORVEGICUS) SPRGUE-DAWLEY HIPERKOLESTEROL Eni Harmayani, Deera Army Pramana, Sri Anggrahini dan Sutikarini
Jurnal Teknosains Vol 2, No 1 (2012): December
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/teknosains.5981

Abstract

Oyster mushroom is considered to have hypocholesterolemic and hypolipidemic activities. Therefore, it is classifiedas functional food. Prior to serving and consumption, oyster mushroom can be processed in various ways. Thisresearch 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 + roastedoyster mushroom (P), and high-lipid diet + boiled oyster mushroom (R). Blood samples were obtained from orbitalplexus after acclimation, hypercholesterolemic induction, and 21 days of feeding. The blood serum was examinedfor total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-c), dan high-densitylipoprotein cholesterol (HDL-c). The result showed that cooked oyster mushroom had better hypocholesterolemicand hypolipidemic activity than raw oyster mushroom. Among the three, the roasted oyster mushroom reduced thetotal cholesterol the most, while boiled oyster mushroom reduced triglyceride the most.
ANALISIS DAN PROFIL TINGKAT KEBUGARAN MAHASISWA JURUSAN TEKNIK MESIN DAN INDUSTRI UNIVERSITAS GADJAH MADA YOGYAKARTA Herianto dan Chusla Rosdiana Dewi
Jurnal Teknosains Vol 2, No 1 (2012): December
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/teknosains.5982

Abstract

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 yearsold, height 164 ± 8.95 cm, and weight 58.23 ± 9.5 kg that meet inclusion criteria were used as subject that measuredin 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 skinfoldmeasurements and Body Mass Index, Astrand bicycle, treadmill, and the fitness index Harvard Step Test performed ondifferent days. The results showed that gender (rs = 0.838 on the nonexercise BMI) and BMI (rs = -0.677 on the Astrandmethod) effect on aerobic fitness. The average value of VO2max (ml.kg-1.min in-1) is achieved from each method. Formale, Astrand bicycle = 53.24 ± 7.82, treadmill = 38.43 ± 9, 05, BMI = 44.85 ± 3.45, 42.49 ± 3.38 = skinfold. Forwomen, Astrand bicycle = 47.86 ± 8.59, ± 5.73 treadmill = 34.1, BMI = 34.25 ± 2.46, 34.63 ± 2.51 = skinfold.

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