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Author/Affiliation: Anwar Ma’ruf
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Open AccessArticle
6 Pages, 1,323 KB Download PDF

The Operational Performance of Mass Transportation Before Covid-19 and New Normal Life: Case Study BRT TransJateng, Central Java

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 3, Page # 361–366, 2021; DOI: 10.25046/aj060342
Abstract:

This article examines the operational performance of Bus Rapid Transit (BRT) before the pandemic and a new normal life. Overview of BRT operational performance in terms of the number of passengers transported, load factor and operating ratio. The method used is to compare the conditions before the pandemic and the new era of life. The…

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(This article belongs to Section Transportation Science & Technology (TST))
Open AccessArticle
6 Pages, 664 KB Download PDF

Biodiesel Production from Methanolysis of Lard Using CaO Catalyst Derived from Eggshell: Effects of Reaction Time and Catalyst Loading

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 399–404, 2021; DOI: 10.25046/aj060246
Abstract:

Biodiesel was produced from lard using a CaO catalyst derived from eggshells. The effects of catalyst loading and transesterification reaction time were investigated. The results revealed that the increase in yield of biodiesel occurred at all catalyst loading when the reaction time was increased. The optimal reaction time was obtained at 60 minutes. The results…

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(This article belongs to Section Chemical Engineering (ENC))

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