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Fervin Mayos Likumahwa
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JISTECH: Journal of Information Science and Technology
Published by Universitas Papua
ISSN : 20856245     EISSN : 29630533     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering
JISTECH E-JOURNAL FAKULTAS TEKNIK UNIVERSITAS PAPUA PRINT ISSN: 2085-6245 E-ISSN: 2963-0533 (Online) JISTECH: Journal of Information Science and Technology merupakan jurnal ilmiah yang diterbitkan oleh Fakultas Teknik Universitas Papua dan terbit dua kali dalam setahun pada bulan April dan Oktober. Jurnal ini mempublikasikan artikel hasil penelitian maupun kajian konseptual di bidang Sains dan Teknologi, meliputi penelitian dasar, terapan, perencanaan, perancangan, serta pengembangan teknologi. Redaksi menerima naskah yang memiliki kontribusi orisinal, jelas, dan signifikan dalam pengembangan ilmu pengetahuan maupun penerapan teknologi. Jurnal ini diharapkan dapat menjadi sarana pertukaran informasi ilmiah bagi akademisi, peneliti, praktisi, dan mahasiswa dalam lingkup nasional maupun internasional.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 10 Documents
 1 
Search results for , issue "Vol 6 No 1 (2014): Februari 2014" : 10 Documents clear
EVOLUSI TEKNOLOGI LEPAS PANTAI KASUS INTERAKSI STRATEGIS DALAM INDUSTRI MINYAK: EVOLUTION OF OFFSHORE TECHNOLOGY A CASE OF STRATEGIC INTERACTION IN OIL INDUSTRY Raharjo, Agustinus Denny Unggul
JISTECH: Journal of Information Science and Technology Vol 6 No 1 (2014): Februari 2014
Publisher : Universitas Papua

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Abstract

Offshore operation in oil and gas industry defined as any drilling and production operation located or operating on a body of water, at some distance from the shore relatively to what identified as onshore operation which is generally means in land operation. Offshore drilling and production operation was a relatively new industry compare to the history of oil industry it self. Technologies take major part in development of offshore project, technologies make what impossible become possible in offshore industry. Offshore drilling and production industry can be possible because of technology innovation. However the drive to explore offshore resources come from high demand on oil and gas as well as depleted resources in onshore resources. One suggested that there is strategic interaction among entities in oil industry, as for offshore operation the strategic interaction lead to evolution of offshore technology. The strategic interaction between two relatively same profiles oil related company will depend on the cost of technology. There is tendency in oil and gas industry, if one company successful in using a kind of technology the other companies will follow the pad. Technology takes a big part in offshore drilling and production industry. The strategic interaction in offshore industry related to the cost of technology.
PENDETEKSIAN MALARIA DALAM CITRA MIKROSKOPIS SEL DARAH MENGGUNAKAN SEGMENTASI CITRA: DETECTION OF MALARIA IN MICROSCOPIC IMAGES OF BLOOD CELLS USING IMAGE SEGMENTATION Naibaho, Julius Panda Putra
JISTECH: Journal of Information Science and Technology Vol 6 No 1 (2014): Februari 2014
Publisher : Universitas Papua

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Abstract

There are four species of the Plasmodium parasite that can cause malaria in humans, plasmodium falciparum, plasmodium vivax, plasmodium malariae and plasmodium ovale. In human body, parasite plasmodium live and growth in heart then infected red blood cell and finaly caused malaria diseases. Convensionally, malaria detection is looking human blood using microscope. Conventional malaria detection do not support in analyzing paracite plasmodium because conventional malaria detection do not record the result of visual data. Today malaria detection is develop with analyzing microscopic image blood cell. Microscopic image is an image that recorded from microscope when looking blood cell. The colour of Parasite plasmodium object in microskopic image has different intensity with red blood cell. The different of their colour intensity be the key to detected the parasite plasmodium in microskopic image. In this research, the writer try to make an application to detecting and counting parasite plasmodium in microscopic image using image segmentation technic.
AN INTRODUCTION TO MPEG-4: PENGANTAR MPEG-4 Rumengan, Yanty
JISTECH: Journal of Information Science and Technology Vol 6 No 1 (2014): Februari 2014
Publisher : Universitas Papua

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Abstract

In 2005 MPEG-4 is the latest generation in multimedia codec. MPEG-4 was initially discovered in the year 1998 to overcome the obstacles of MPEG-1 and MPEG-2. However MPEG-4 was not officially recognized until the year 2002. The MPEG-4 standard can be applied to many applications because it contains the ability of scene-based presentation, natural and synthetic object coding, power script, java-language support and network transparent integration [1]. MPEG-4 is the extended version from the final one MPEG-1 and MPEG-2 which means also part of the working group of ISO/IEC developed by Motion Picture Experts Group in charge of the development of international standards for compression, decompression, processing and coded representation of moving picture, audio and both of the combination.
EVALUASI DAMPAK KEGIATAN PELEDAKAN VERTICAL BENCHING TERHADAP GROUND SUPPORT PT. FREEPORT INDONESIA: EVALUATION OF THE IMPACT OF BLASTING ACTIVITIES VERTICAL BENCHING OF GROUND SUPPORT PT. FREEPORT INDONESIA Sirwutubun, Yulius B.; Triyanto, Bambang; Horman, Juanita R.
JISTECH: Journal of Information Science and Technology Vol 6 No 1 (2014): Februari 2014
Publisher : Universitas Papua

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Abstract

One of the tunnel excavation method on underground mine Grasberg Block Caving method heading and bench, the size of the tunnel were observed (width, m x height, m) 6.8 x 6 (headings) and 6.8 x 3 (bench). After the excavation is done on a heading followed by the activities of ground support, then do the blasting vertical benching. Blasting activities can give bad impact among others fly rock and an excessive burst of energy that could damage ground support on drift back. Ground support is used namely splitset, wire mesh, threadbar and cable bolt. The geometry of the blasting is applied on the area of Grasberg And Drift 5 and 7 (exhaust) the burden of 1.75 m, spacing 1.40 m, height 3 m, benching depth hole explosive 4 m with a slope of 50 and 150, field 2.1 m, 0.8 m, drilling sub powder factor of 1.14 kg/m3 and stemming is not used. The draft of the proposed blasting, based on prediction method using C.J. Konya and Berta G produces a range of fly rock 2.61 m and energy blast 40,24 MJ.
APLIKASI METODE GEOLISTRIK UNTUK MENENTUKAN AKUIFER AIR TANAH DI KAMPUNG HORNA BARU DAN KAMPUNG MUTURI DISTRIK MANIMERI KABUPATEN TELUK BINTUNI PROVINSI PAPUA BARAT: APPLICATION OF THE GEOELECTRIC METHOD TO DETERMINE THE GROUNDWATER AQUIFER IN HORNA BARU VILLAGE AND MUTURI VILLAGE, MANIMERI DISTRICT BINTUNI BAY DISTRICT WEST PAPUA PROVINCE Laitupa, Karmila; Pangkung, Yulius G.; Supit, Jance M.
JISTECH: Journal of Information Science and Technology Vol 6 No 1 (2014): Februari 2014
Publisher : Universitas Papua

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Abstract

Geolistrik is one of the geophysical method used in shallow exploration. In working principle of the method geolistrik is studying the flow of electricity in the Earth, and how to detect it at the Earth's surface. This research aims to determine the water bearer layer, layout and depth as well as the type of aquifer groundwater Kampung Horna Baru and Kampung Muturi District Manimeri District of West Papua Province Bintuni Straits Bay with the method of resistivity (Resistivity). Resistivity method based on Ohm's law, aims to find out the type of coating the rocks based on the distribution of the resistivity value on each layer. Data measurement results in the field of potential noun and current can be used to calculate the price of a pseudo resistivity. After pseudo resistivity value obtained then incorporated into the software, and data res2dinv spaced electrodes and data datum points for knowing the value of resistivity, the RMSE and depth of each layer with a 2D model are vetically through a process of inverse. Geolistrik research results indicate that the aquifer groundwater Kampung Horna Baru and Kampung Muturi District Manimeri district of Bay of Bintuni Straits, has a varied range of resistivity of 0.183 meters% uFFFD Ohm. 3714 Ohm. ft. On tracks 2, 3, 5 and 6 in Kampung Horna Baru at a depth of 4.3% uFFFD 27.1 m. Whereas in Kampung Muturi on tracks 8 and 9 with a depth of 13.1-27.1 m.
ANALISIS RESIKO PENAMBANGAN SIRTU GUNA MEMENUHI KEBUTUHANPROYEK JALAN WARMARE-PRAFI EIB 17 KABUPATEN MANOKWARI: RISK ANALYSIS OF SIRTU MINING TO FULFILL REQUIREMENTS FOR THE WARMARE-PRAFI EIB 17 ROAD PROJECT, MANOKWARI DISTRICT Horman, Juanita R.
JISTECH: Journal of Information Science and Technology Vol 6 No 1 (2014): Februari 2014
Publisher : Universitas Papua

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Abstract

In order to meet the demand of gravel materials needed for the project of Warmare-Prafi EIB 17 road construction, it was important for Brantas Abipraya company, as the gravel supplier and construction operator, to initially apply a risk analysis. Factors such as operational costs and level of profitability, which was calculated based on the cash flows during the project term, were critically considered in the analysis. Moreover, considering changes of those factors above, financial analysis was also applied through Net Present Value (NPV) method. In the mining activity, excavators were used for both digging and loading. Dump trucks were used in the process of hauling the materials from front locations to crashing plant, and wheel loaders were used in the loading process in the crashing location. According to the project calculation, the volume of gravel material needed for the whole activities during the project was approximately 369,060 m3, which was estimated dealing with road length of 56.736 Km. Due to the fact that the company was acted as the supplier as well as the construction operator, there was no marketing activities on gravel produced. Financing factor or capital which was received by the company was resulted from the value of the project. The minimum interest rate was about 12% per annum. The research concluded that this gravel mining activity was more influenced by changes in profit level than changes in the level of operational costs.
ANALISA PEMANFAATAN APLIKASI CLEARSEA UNTUK KULIAH UMUM DI UNIVERSITAS NEGERI PAPUA: ANALYSIS OF THE USE OF THE CLEARSEA APPLICATION FOR PUBLIC LECTURES AT PAPUA STATE UNIVERSITY Kweldju, Alex De
JISTECH: Journal of Information Science and Technology Vol 6 No 1 (2014): Februari 2014
Publisher : Universitas Papua

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Abstract

The limitation of Universitas Negeri Papua (UNIPA) Meeting Room capacity make general lecture for all students at every beginning of semester was difficult to do since students numbers are six time Meeting Room capacity. The tendency of increasing student’ numbers every year and there is no plan to rebuild Meeting Room are some other factors that university have to find a solution. One of the solutions is using Information Technology (IT).ClearSea is one of paid video konferensi application that Unipa bought years ago. By running the server application on intranet and putting all client applications on every faculty meeting room, this application was expected to facilitate UNIPA Rector in given general lecture and be watched by all students from their faculty meeting room. This paper analyzed the pros and cons of ClearSea implementation in UNIPA general lecture.In general, ClearSea can answer the need of general lecture at UNIPA. However, by considering its high price, this application does not have some features that made this application could not give full benefit, such as feature to choose active monitor and thumb monitor for every client.
Potensi Pengembagan Dye Sensitized Solar Cell (DSSC) dengan Sensitizer Zat Warna Alami dari Tumbuhan Asal Papua sebagai Alternatif Solusi Krisis Energi dan Pemanasan Global: The Potential for Development of Dye Sensitized Solar Cell (DSSC) with Natural Dyes Sensitizers from Papuan Plants as an Alternative Solution to the Energy Crisis and Global Warming Lestari, Agnes Dyah Novitasari
JISTECH: Journal of Information Science and Technology Vol 6 No 1 (2014): Februari 2014
Publisher : Universitas Papua

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Abstract

Currently, the energy crisis and global warming are an important issue internationally, including Papua. Various attempts were made to overcome these problems, for instance the development of alternative energy that does not cause global warming: the solar energy harvested by the solar cells (solar cells). There is an obstacle for solar cell applications: the high production costs. This problem is solved by the discovery of a type of solar cell Dye Sensitizized Solar Cell (DSSC).Utilization of local potential will reduce the cost of fabricating such a device. Papua is well know for its flora abundance and diversity, one of which is a natural dye-producing plants. Color produced by these plants show content that has a group of compounds that can absorb light (chromophore) contained therein. The content of this chromophore compounds provide potential it can be used as a sensitizer in DSSC, thus resulting DSSC that is relatively cheap for Papua.
PEMBELAJARAN MATERI LINGKARAN MENGGUNAKAN METODE COMMETH: LEARNING CIRCLE MATERIALS USING THE COMMETH METHOD Wyrasti, Andi Fajeriani
JISTECH: Journal of Information Science and Technology Vol 6 No 1 (2014): Februari 2014
Publisher : Universitas Papua

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Abstract

The aim of this research is to find an alternative method in teaching mathematics, specially in circle topic for the 8th grader student in SMP N 14 Masni, that can improve the activity and student’s score in learning mathematics. This method is named commeth. This method is a combination of several learning methods, namely lecturer, outdoor study, demonstration, jigsaw, and tanya jawab. The datum of this research are analyzed by qualitative and quantitative method. Based on this research, the result showed that the student activity and the student’s score are increase along the learning process. The observation result of the student activity is 87,33%. It means that the students are active. The rate of the team work is 71,45. It means that the students are cooperative along the learning process. And the rate of students grade is 70,25 . It increased by 81,29%.
SURVEI GEOLISTRIK UNTUK MENGETAHUI POTENSI AIR TANAH DI KEPULAUAN AYAU, KABUPATEN RAJA AMPAT, PROVINSI PAPUA BARAT: GEOELECTRIC SURVEY TO KNOW THE POTENTIAL OF GROUNDWATER IN AYAU ISLANDS, RAJA AMPAT REGENCY, WEST PAPUA PROVINCE Pamuji, Khristian Enggar
JISTECH: Journal of Information Science and Technology Vol 6 No 1 (2014): Februari 2014
Publisher : Universitas Papua

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Abstract

Geoelectricity survey has been done in Ayau Islands, Raja Ampat Regency, West Papua Province. The measurement method that used is sounding, whereas electrode configuration used is Schlumberger configuration with a stretch of 100 -150 m. The data obtained are then processed by Progress Software. The results of this survey obtained show that in the geoelectricity sounding measurement point not found any good groundwater aquifers, as the water source of drilled well. Water layer with the thickness between 1-3 m at the surface (alluvial) is a rain water infiltration that is not recommended to make boreholes at this point.

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