Ditemukan 3470 dokumen yang sesuai dengan query
Hugeng, author
3D sound is a new trend in various media, such as movies, video games, and musicals. Interpolated head-related transfer functions (HRTFs) are a key factor in its production, due
to real-time system limitations in storing measured HRTFs. In addition, the
interpolation of HRTFs can reduce the need to measure a large amount...
2017
J-Pdf
Artikel Jurnal Universitas Indonesia Library
Arif Muntasa, author
Facial detection is a crucial stage in the facial recognition process. Misclassification during the facial detection process will impact recognition
results. In this research, windowing system facial detection using the Gabor
kernel filter and the fast Fourier transform was proposed. The training set
images, for both facial and non-facial images, were processed to...
2017
J-Pdf
Artikel Jurnal Universitas Indonesia Library
Fredina Destyorini, author
The gas diffusion layer (GDL) is one of the critical components of a proton exchange membrane fuel cell (PEMFC). It is generally made of a fossil-fuel-based carbon material. In this study, carbon composite paper (CCP) for GDL was prepared by using carbon material obtained from coconut coir. To obtain the...
2016
J-Pdf
Artikel Jurnal Universitas Indonesia Library
H. Jodi, author
Batteries on the market
today still use liquid-type electrolytes, which can result in safety issues
caused by electrolyte leakage. Therefore, studies that search for solid-state
electrolytes are important for resolving these issues. In this research, a
composite of lithium phosphate-montmorillonite-polyvinylidene fluoride (Li3PO4-MMT-PVDF)
has been characterized with the aim of detecting the electrochemical
performance of Li3PO4 with...
2016
J-Pdf
Artikel Jurnal Universitas Indonesia Library
Nofrijon Sofyan, author
Vanadium-doped LiFePO4/C
used as a cathode for a lithium ion battery has been successfully synthesized.
In this work, LiFePO4 was synthesized from LiOH, NH4H2PO4,
and FeSO4.7H2O at a stoichiometric amount. Vanadium was added in the
form of H4NO3V at concentration variations and 3 wt.%
carbon black. The characterization includes thermal analysis, X-ray
diffraction, electron microscopy, and...
2016
J-Pdf
Artikel Jurnal Universitas Indonesia Library
Cahya Ahmad Trisdianto, author
Fluorine-doped tin oxide (FTO) is one of the conductive glasses that have strategic functions in various important applications, including dye-sensitized solar cell (DSSC). In the current work, the effects of deposition time (5, 10, 20, 30, and 40 minutes) upon the fabrication process of FTO thin film using spray pyrolysis...
2016
AJ-Pdf
Artikel Jurnal Universitas Indonesia Library
Badrul Bunir, author
The growth and crystallization processes of the Cu2ZnSnS4 (CZTS) phase typically rely on high-temperature sulfurization, which involves a harmful chalcogen-containing atmosphere. Together with the use of high-toxicity solvents, these processes could hinder the widespread adoption of this technology in the mass production of CZTS semiconductors for solar cell application. Thus,...
2016
AJ-Pdf
Artikel Jurnal Universitas Indonesia Library
Tri Arini, author
Transparent conducting oxide (TCO) glasses play an important role in
various technology, including dye sensitized solar cells. One of the most
commonly used glass is indium tin oxide (ITO) glass, which is expensive.
Therefore, the main
purpose of this research was to determine if ITO glass can be replaced with
fluorine-doped tin oxide (FTO) glass,
which...
2016
J-Pdf
Artikel Jurnal Universitas Indonesia Library
Yuswan Muharam, author
The research aims to scale up a small-scale stirred batch reactor to a large-scale stirred batch reactor in order to degum crude palm oil for use as a raw material in biodiesel production. The scale-up is based on the similarity of fluid Reynolds numbers in the two differently sized reactors....
2016
J-Pdf
Artikel Jurnal Universitas Indonesia Library
Hafif Dafiqurrohman, author
Rice husk is one of the
most abundant biomass wastes in Indonesia. One way to convert it into an
alternative source of energy is biomass gasification. This is a thermochemical
process which converts biomass feedstock into fuel gas or chemical feedstock
gas (producer gas). The gasification type which is developed in this study is
fixed...
2016
J-Pdf
Artikel Jurnal Universitas Indonesia Library
