Ditemukan 644 dokumen yang sesuai dengan query
Depok: Faculty of Engineering-Universitas Indonesia, 2007
621.042 PRO t
Buku Teks Universitas Indonesia Library
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ABSTRAK
Genome Sequence Analysis for genetic datasets by using ORF (Open Reading Frames) techniques is an interesting area of research for bioinformatics researchers nowadays. There is a strong research focus on comparative analysis between genetic behaviors and diversity of different species. Contrary to whole genome sequence analysis, scientists are now trying to concentrate specifically on layered analysis to get a better insight of relevancy among genetic datasets. This phenomenon will help to better understand species. An ...
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Depok: Faculty of Engineering. Universitas Indonesia, 2010
600 UI-IJTECH
Majalah, Jurnal, Buletin Universitas Indonesia Library
Nazia Hossain
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Commercialization of bioethanol has recently intensified due to its market stability, low cost,sustainability, alternative fuel energy composition, greener output and colossal fossil fuel depletion. Recently, because of greenhouse intensity worldwide, many researches are ongoing to reprocess the waste as well as turning down the environmental pollution. With this scenario, the invention of bioethanol was hailed as a great accomplishment to transform waste biomass to fuel energy and in turn reduce the massive usages of fossil ...
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Depok: Faculty of Engineering, Universitas Indonesia, 2017
UI-IJTECH 8:1 (2017)
Artikel Jurnal Universitas Indonesia Library
Myrna Ariati
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In this study, H13 tool steel and Cr-Mo-V steel were treated by two different types of surface treatments, i.e. double shot peening with nitriding and single shot peening. Samples were dipped into the molten aluminum alloy ADC12 as a simulation of the die casting process and held there for 0.5, 5, and 30 minutes. Several characteristics were analyzed, including surface hardness, microstructure observation, and identification of elements on the intermetallic layer formed. The results of ...
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Depok: Faculty of Engineering, Universitas Indonesia, 2016
UI-IJTECH 7:3 (2016)
Artikel Jurnal Universitas Indonesia Library
Made Ganesh Darmayanti
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The rapidly growing demand for petroleum resources has become a crucial global problem. Therefore, a more realistic solution is required for oil production. Enhanced oil recovery (EOR) has become an essential technique to extract original oil content and maintain oil fields. During this process, certain viscous polymers are commonly used as mobility control agents. In this work, we introduce a new class of polymer to address the limitations of commercial EOR polymers. We successfully extracted ...
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Depok: Faculty of Engineering, Universitas Indonesia, 2016
UI-IJTECH 7:3 (2016)
Artikel Jurnal Universitas Indonesia Library
Anne Zulfia Syahrial
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Lithium titanate, Li4Ti5O12 (LTO) is a promising candidate as lithium ion battery anode material. In this investigation, LTO was synthesized by a solid state method using TiO2 xerogel prepared by the sol-gel method and lithium carbonate (Li2CO3). Three variations of Li2CO3 content addition in mol% or Li2CO3 molar excess were fabricated, i.e., 0, 50 and 100%, labelled as sample LTO-1, LTO-2 and LTO-3, respectively. The characterizations were made using XRD, FESEM, and BET testing. These ...
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Depok: Faculty of Engineering, Universitas Indonesia, 2016
UI-IJTECH 7:3 (2016)
Artikel Jurnal Universitas Indonesia Library
Sri Bimo Pratomo
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In general, the Nd-Fe-B as-cast ingot is homogenized for a long time before the hydrogenation, disproportionation, desorption and recombination (HDDR) process, to produce good magnetic properties. Since the homogenizing process is expensive, this work examined the possibility of replacing it with a water quenching process for Nd-Fe-B magnetic powder. The magnetic powders were soaked at 1100oC for 4 hours, followed by water quenching prior to HDDR. The resulting powder had magnetic properties that were almost ...
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Depok: Faculty of Engineering, Universitas Indonesia, 2016
UI-IJTECH 7:3 (2016)
Artikel Jurnal Universitas Indonesia Library
Husaini
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Aluminum alloys, such as A6061-T6, are widely used in engineering components. However, detailed knowledge is needed to understand the way they respond to a fracture due to mechanical loading. Fractures occur in the structural component from crack propagation, and it is important to understand the mixed mode fracture behavior of crack growth. In this research, mixed mode fracture testing was conducted on the aluminum alloy A6061-T6 by employing a compact tension shear specimen. Crack growth ...
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Depok: Faculty of Engineering, Universitas Indonesia, 2016
UI-IJTECH 7:3 (2016)
Artikel Jurnal Universitas Indonesia Library
Akhmad Herman Yuwono
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Zinc Oxide (ZnO) is an important semiconductor material due to its broad applications, such as in the fields of electronics, optoelectronics, photocatalysts, and solar cells. The main purpose of this work was to investigate the effect of pressure in post-hydrothermal treatment on crystallinity enhancement, crystallite growth, and band gap reduction of ZnO nanoparticles, which could be expected to improve their performance as the semiconductor oxide layer in the dye-sensitized solar cell application. For this purpose, ...
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Depok: Faculty of Engineering, Universitas Indonesia, 2016
UI-IJTECH 7:3 (2016)
Artikel Jurnal Universitas Indonesia Library
Soesaptri Oediyani
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Steel is an important material that is widely used and its development has occurred in conjunction with the history of mankind over the last two centuries. In general, the steelmaking process has been done through a combination of a direct reduction process and an Electric Arc Furnace (EAF) or an indirect reduction process and a Basic Oxygen Furnace (BOF). The combination of the steelmaking processes can be adapted to the specific conditions of Indonesian local ...
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Depok: Faculty of Engineering, Universitas Indonesia, 2016
UI-IJTECH 7:3 (2016)
Artikel Jurnal Universitas Indonesia Library
