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Tim Editor Journal of Science and Applicative Technology
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Lembaga Penelitian dan Pengabdian Masyarakat, ITERA Gedung D, Institut Teknologi Sumatera, Jalan Terusan Ryacudu Street, Way Hui Jati Agung Lampung Selatan 35365
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Journal of Science and Applicative Technology
Published by Institut Teknologi Sumatera
ISSN : 25810545     EISSN : 25810545     DOI : -
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Materials Science & Nanotechnology Mechanical Engineering
Journal of Science and Applicative Technology is soon indexed by google scholar, SINTA (Science and Technology Index), portal garuda, DOAJ (Directory of Open Access Journals). This journal has been registered at PDII LIPI (ISSN: 2581-0545). This journal is semiannual journal. It will be published in June and December. The objective of the journal is to provide a room for students, researchers, lecturers, pratictioners and communities to present their ideas regarding several topics covered in this journal. Journal of Science and Applicative Technology covers wide area of research. We welcome full research articles in the following area, including but not limited to : 1. Renewable Energy 2. Green Infrastructure 3. Community Development 4. Computer Science 5. Civil and Environmental Engineering 6. Electrical Engineering 7. Mechanical Engineering 8. Telecommunication 9. Earth and Planetary Sciences (Geography, Geodesy, Geology, Geophysics, Oceanography, Astronomy, Atmospheric) 10. Natural Sciences (Mathematics, Chemistry, Physics, Statistics) 11. Life Sciences (Biochemistry, Biology, Pharmacy) 12. Regional and City Planning
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Vol 3 No 2 (2019): Journal of Science and Applicative Technology December Chapter" : 6 Documents clear
Numerical Investigation of Electrospray Working Performance on Ethanol Andam Refino; Hadi Teguh Yudistira; Denny H. T. Nugroho; Deska L. Puspitarum
Journal of Science and Applicative Technology Vol 3 No 2 (2019): Journal of Science and Applicative Technology December Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1338.918 KB) | DOI: 10.35472/jsat.v3i2.196

Abstract

Electrospray as an alternative method to fabricate thin film is studied. High voltage is required by the electrospray system. The requirement of high voltage is different for various liquid depending on the surface tension property. Ethanol was used to resemble the solvent used in thin film deposition. From the experimental work, jetting performance did not occur despite of the high applied voltage which is around 1 KV. In this work, numerical calculation is carried out to find the reason behind of unsuccessful jetting at 1 KV applied voltage. The percentage of Rayleigh limit is around 0.4. Electrospray performance at walking distance 5 mm using ethanol is predicted to be stable when the applied high voltage is approximately 1.1 KV. The numerical investigation indicates that the jetting performance will occur if the applied voltage is more than 1.1 KV.
Analisis potensi energi matahari di Institut Teknologi Sumatera: Pertimbangan Faktor Kelembaban dan Suhu Mohamad Samsul Anrokhi; Mahardika Yoga Darmawan; Ali Komarudin; Kiki Kananda; Deska Lismawening Puspitarum
Journal of Science and Applicative Technology Vol 3 No 2 (2019): Journal of Science and Applicative Technology December Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (567.921 KB) | DOI: 10.35472/jsat.v3i2.210

Abstract

Indonesia's electricity needs are increasing in line with increasing population and living standards. Renewable energy is an alternative in avoiding dependence on conventional PLN electricity. This research is a further study of solar energy as an alternative energy to meet the electricity needs of Institut Teknologi Sumatera (ITERA) which always increases every year with the increasing number of students and the infrastructure of lecture infrastructure. Research on the potential of solar energy at the ITERA has been carried out before using conventional methods. This study further examines the potential of solar energy by considering various factors. This study uses solar cells with 100 WP specifications and uses Arduino UNO instrumentation to facilitate the measurement of current and voltage automatically which can be stored directly in memory cards. Based on the measurement results obtained a maximum power value of 66 watts that occurs at 11:00 and 12:00 WIB. Keywords: Solar cell, solar energy
Eksperimen Gangguan Getaran Pada Fenomena Cloaking Cahaya Tampak Sistem Empat Lensa Okky Fajar Tri Maryana; L. Y. Ginting; F. Pahlawan; M. Y. Darmawan
Journal of Science and Applicative Technology Vol 3 No 2 (2019): Journal of Science and Applicative Technology December Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1352.432 KB) | DOI: 10.35472/jsat.v3i2.213

Abstract

Creating optical illusions or invisible objects by using cloaking devices is still being a concern for many researchers in the world. The cloaking devices are working in visible spectrum regime, large dimention, and replicable. Addition with the full-field of light, no new materials, simple infrastructure, and scale easily may be considered an ‘ideal’ cloaking device. Based on four lenses cloaking system by Choi’s work shows an idea for solution of blindspot large vehicle’s problem. The set up for this optical system is regular covex lenses non-aberation based on educational laboratory framework. The experimental confirmation that cloaking area with 4f convex lenses is limited to certain areas only, not 100 % of the object to be observed can disappear from the view. Vibration disturbance generated by rotor module (wheels disturbance analogy on vehicles) applied on the system demonstrate that below on 2000 rotation per minutes (rpm) equal 33.34 hertz, optical illusion is still consistent. The results support the information to create optical cloaking prototype for optimizing large vehicle driver’s visibility as alternative solution blindspot’s problem.
PERANCANGAN TATA LETAK LABORATORIUM PAKAN DENGAN METODE COMPUTERIZED RELATIONSHIP LAYOUT PLANNING DI INDUSTRI PENGGEMUKAN SAPI Dian Fajarika; Rinda Gusvita; Novicha Sofriani
Journal of Science and Applicative Technology Vol 3 No 2 (2019): Journal of Science and Applicative Technology December Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (683.902 KB) | DOI: 10.35472/jsat.v3i2.123

Abstract

Feed laboratory is a facility that guarantees feed quality in the feedlot industry. But the existence of this laboratory has not been fully considered both in terms of facilities and layout that ease the movement of workers. This research aims to analyze machine and raw material properties in the feed laboratory, to find total closeness rating between facilities according the need and designing the layout of facilities in the laboratory that can streamline the material flow. The problem is how to design facility layout in feed laboratory which has different tool and machine characteristics in limited space, how to plan material flow that can minimize work flow. The method used is computerized relationship layout planning (CORELAP). The result obtained is the design of the laboratory layout by comparing the optimum distance on the inter-work track. The calculation value from allocation relationship diagram showed the biggest total closseness rating is the testing room. From the calculation of the distance difference layout design, it is known that the second alternative provides a better solution with the largest distance difference of 41.52 for space with condition should be close and the distance difference of -31.21 for space with the condition should not be close. Keyword: feed laboratory layout, feedlot industry, computherized relationship layout planning
Analisis Kerapatan Kelurusan (Lineament Density) di Lapangan Panasbumi Suoh-Sekincau, Lampung Mochamad Iqbal; Bella Restu Juliarka
Journal of Science and Applicative Technology Vol 3 No 2 (2019): Journal of Science and Applicative Technology December Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2300.515 KB) | DOI: 10.35472/jsat.v3i2.212

Abstract

Penelitian ini bertujuan untuk melakukan analisis kerapatan kelurusan di daerah penelitian yaitu di lapangan panasbumi Suoh-Sekincau yang terletak pada Kabupaten Lampung Barat Provinsi Lampung. Kerapatan kelurusan diproses dengan menggunakan citra satelit berupa digital elevation map (DEM) yang diunduh pada laman Badan Informasi Geospasial (BIG). Citra tersebut diolah dengan menggunakan perangkat lunak Geomatica dan Arcgis dan menghasilkan peta kerapatan kelurusan dengan berbagai kelompok nilai dari tinggi hingga rendah. Geologi daerah penelitian didominasi oleh batuan gunungapi (volkanik) dengan kelurusan dominan berarah baratlaut-tenggara dan merupakan bagian dari Sesar Besar Sumatera pada segmen Semangko. Morfologi daerah penelitian terdiri dari punggungan dan beberapa puncak gunung dengan adanya cekungan pull-apart pada Danau Suoh. Dari peta kerapatan kelurusan yang dihasilkan, pada sekitar Gunung Sekincau memiliki nilai yang tinggi dan diinterpretasikan bahwa daerah tersebut memiliki tingkat permeabilitas yang baik. Selain itu daerah di sekitar Danau Suoh juga memiliki nilai kerapatan yang tinggi. Daerah dengan densitas tinggi ini merupakan daerah yang baik sebagai daerah resapan panasbumi. Keywords: penginderaan jauh, panasbumi, Suoh-Sekincau, kerapatan kelurusan, Lampung
Perancangan Sistem Pemanenan Energi Surya Terintegrasi Kaca Bangunan, Studi Kasus: Gedung Bandar Lampung Koko Friansa; Rishal Asri; Monna Rozana; FX Nugroho Soelami
Journal of Science and Applicative Technology Vol 3 No 2 (2019): Journal of Science and Applicative Technology December Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1196.838 KB) | DOI: 10.35472/jsat.v3i2.209

Abstract

In this paper, design of solar energy harvesting system which integrated in building glass window was proposed. The location as the design reference is Bandar Lampung Building. Bandar Lampung Building uses 90% of the glass on the outside walls building with facing the sunrise and sunset. The design solar energy harvesting system was consisted of solar glass and electronic power system. Solar glass using several mini PV affixed on the glass with space in between, so partially of sunlight pass into the room. The solar energy harvesting system used for DC house network and not connected to the grid system. The solar energy harvesting is also equipped with power electronic system such as MPPT, lead acid battery, and DC-DC converter. The design of solar energy harvesting system is using calculative method based on secondary data several references for this case. Area of the solar glass reaches 16.32 m2 for 1 office room scale. The ratio between PV and room glass about 0.35. The power average of the solar glass on the glass building with facing to the sunrise is about 74.35 W, and then the average power of the solar glass with facing to the sunlight about 161.32W.

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