cover
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kab. sleman,
Daerah istimewa yogyakarta
INDONESIA
Jurnal Teknosains
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
JOURNAL TEKNOSAINS, is a journal which began publication in 2011, and is published each June and December. JOURNAL TEKNOSAINS is a series of scientific publications in science and technology area from the perspective of a multi and interdisciplinary studies. JOURNAL TEKNOSAINS is an interdisciplinary forum for the publication of original peer-reviewed, contributed and invited articles to improve and enhance science and technology. The journal provides a stimulating and informative variety of papers geared toward theory and practice in the hope that common information shared among a broad coalition of individuals and groups involved in science and technology will facilitate future efforts. JOURNAL TEKNOSAINS published by the Graduate School of Gadjah Mada University. All articles will be subjected to double-blind peer review process following a review by the editors.
Arjuna Subject : -
Articles 8 Documents
Search results for , issue " Vol 1, No 2 (2012): June" : 8 Documents clear
EFFECT OF AIR JET COOLING ON SURFACE ROUGHNESS AND TOOL WEAR dan Tony S. Utomo, Paryanto Rusnaldy
Jurnal Teknosains Vol 1, No 2 (2012): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (321.522 KB) | 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.
PEMANFAATAN CITRA IKONOS UNTUK IDENTIFIKASI OBJEK PAJAK BUMI DAN BANGUNAN Lestari, Wiji
Jurnal Teknosains Vol 1, No 2 (2012): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (181.101 KB) | 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.
A SUSTAINABLE SUPPLY CHAIN MODEL OF RELATIONSHIP BETWEEN WOOD SUPPLIER AND FURNITURE INDUSTRY IN INDONESIA and Shalihuddin Djalal Tandjung, Muh. Hisjam Adi Djoko Guritno
Jurnal Teknosains Vol 1, No 2 (2012): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (411.754 KB) | 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.
EKSPLORASI KEANEKARAGAMAN HERPETOFAUNNA DI KECAMATAN GIRIMULYO KABUPATEN KULON PROGO YOGYAKARTA Qurniawan, Tony Febri
Jurnal Teknosains Vol 1, No 2 (2012): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (243.689 KB) | 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.
PENGARUH TEKANAN PISTON PADA PENGATURAN KATUP SOLENOID PROPORSIONAL DUA ARAH TERHADAP LAJU ALIRAN AIR PADA SISTEM KALIBRASI PISTON PROVER OT-400 Prakosa, Jalu Ahmad
Jurnal Teknosains Vol 1, No 2 (2012): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (417.123 KB) | DOI: 10.22146/teknosains.5989

Abstract

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 ofproportional 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
SCAFFOLD DARI BOVINE HYDROXYAPATITE DENGAN POLY VYNIALCHOHOL COATING Endang Tri Wahyuni, dan Joko Triyono, Alva Edy Tontowi, Punto Dewo,
Jurnal Teknosains Vol 1, No 2 (2012): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (783.609 KB) | 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.
EQUITABLE ACCESS TO HEALTH SERVICE IN BANYUWANGI Mark Zuidgeest, Lusi Herawati Sunyoto Usman
Jurnal Teknosains Vol 1, No 2 (2012): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (508.581 KB) | 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.
BERMULA DARI MIMPI MEWUJUDKAN INOVASI Herliansyah, M.K.
Jurnal Teknosains Vol 1, No 2 (2012): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (201.961 KB) | 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.

Page 1 of 1 | Total Record : 8