Ditemukan 3470 dokumen yang sesuai dengan query
Siti Farhanah SM Johan, author
Ballast is one of the
main structures for the railway tracks. It can resist the lateral movement
under dynamic loading transferred by the passing trains with repeatedly. Under
some circumstances, ballast can suffer degradation or breakdown due to the
repeated loading and maintenance. Ballast is easily exposed to the weather
because it is laid on...
2016
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Artikel Jurnal Universitas Indonesia Library
Ademola Ajayi-Banji, author
Agricultural waste has
increased colossally with development in agricultural production causing environmental
nuisance and degradation. Utilization of coconut husks, one of such type of waste, as a biosorbent for polluted surface water treatment, was
considered in this study. Polluted surface water was gently passed through two
similar columns loaded with 100 and 200 g...
2016
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Artikel Jurnal Universitas Indonesia Library
S. Divakara Shetty, author
Inhibition is one of the
mechanisms used for mitigating the metallic corrosion, particularly in an acid environment. The present work aims to
investigate the
inhibiting effect of N-benzyl-N/-phenyl thiourea (BPTU) on the
corrosion of low carbon steel in a 0.1 M hydrochloric acid (HCl) solution using a Tafel
extrapolation and linear polarization techniques. The study...
2016
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Artikel Jurnal Universitas Indonesia Library
Muhammad Faisal, author
The combination of
baffled air flotation and a membrane system for the treatment of palm oil mill
effluent (POME) was studied. The POME was obtained from a palm oil factory in
PTPN I Tanjong Seumantoh, Aceh, Indonesia. Operation variables and conditions,
such as the hydraulic retention time and air flow rates, were varied to...
2016
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Artikel Jurnal Universitas Indonesia Library
Alif Azwan Abdul Wahab, author
This study was aimed to
determine the reaction stoichiometry between Cu(II) and di-2-ethylhexylphosphoric
acid (D2EHPA) in Waste Palm Cooking
Oil (WPCO). The stoichiometry was computed based on
the following
experimental
methods, namely slope analysis, loading test and Job?s
method. Slope analysis was used to measure the variation of the distribution coefficien...
2016
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Artikel Jurnal Universitas Indonesia Library
Subriyer Nasir, author
The purpose of this paper was to investigate the performance of ceramic filters made from a mixture of natural clay, rice bran, and iron powder in removing cadmium from pulp industry effluent. Some parameters were examined such as acidity, total dissolved solid (TDS), total suspended solid (TSS), electrical conductivity (EC),...
2016
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Artikel Jurnal Universitas Indonesia Library
Talib Hussain, author
A
vacuum drying system is being designed and developed at National Institute of
Vacuum Science & Technology (NINVAST) to dry various materials under vacuum
conditions. Its performance and capabilities are tested by carrying out
different experiments on green (freshly cut) wood samples of Poplar and
Eucalyptus with dimensions of 990.6 mm x 76.2 mm x...
2016
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Artikel Jurnal Universitas Indonesia Library
Haryo Santoso, author
Forest destruction in Indonesia has become a very serious problem and global concern. Eco-labels aim to combat illegal logging, illegal trading, and forest conversion. Eco-labeling in the furniture industry is slower in Indonesia than in competing countries such as China and Vietnam, where China has reached more than 1000 Chain...
2016
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Artikel Jurnal Universitas Indonesia Library
Cucuk Nur Rosyidi, author
A mechanical assembly consists of several components to perform an intended function. At the design stage, the intended function must be converted into critical product dimensions. After determining the dimensions, a designer must determine the assembly tolerance and allocate this tolerance to the tolerances of the corresponding components. After determining...
2016
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Artikel Jurnal Universitas Indonesia Library
Alvin Prayuda Juniarta Dwiyantoro, author
The routine daily
activities that tend to be sedentary and repetitive may cause severe health
problems. This issue has encouraged researchers to design a system to detect
and record people activities in real time and thus encourage them to do more
physical exercise. By utilizing sensors embedded in a smartphone, many research
studies have been...
2016
J-Pdf
Artikel Jurnal Universitas Indonesia Library
