Showing 401 - 420 results of 7,049 for search '(((pina OR owing) OR (five OR tingga)) OR ((spinae OR aina) OR (peng OR ming)))', query time: 0.13s Refine Results
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    Crab and cockle shells as heterogeneous catalysts in the production of biodiesel by Maniam, Gaanty Pragas, Boey, Peng-Lim, Abd Hamid, Shafida

    Published 2010
    “…Parametric studies have been investigated and optimal conditions were found to be catalyst amount, 5 wt.% and methanol/oil mass ratio, 0.5:1. The waste catalysts perform equally well as laboratory CaO, thus creating another low-cost catalyst source for producing biodiesel. …”
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    Proceeding Paper
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    Biodiesel from adsorbed waste oil on spent bleaching clay using CaO as a heterogeneous catalyst by Boey, Peng-Lim, Maniam, Gaanty Pragas, Abd Hamid, Shafida

    Published 2009
    “…The highest purity of 98.6 ± 0.8 % was achieved within 2.5 h. Biodiesel yield under the solid catalyst was quantified as 90.4% as compared to 45.5% and 61.0%, respectively for classical NaOH, and KOH homogeneous catalysts.…”
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    Article
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    Biodiesel production via transesterification of palm olein using waste mud crab (Scylla serrata) shell as a heterogeneous catalyst by Boey, Peng-Lim, Maniam, Gaanty Pragas, Abd Hamid, Shafida

    Published 2009
    “…Parametric studies have been investigated and optimal conditions were found to be methanol/oil mass ratio, 0.5:1; catalyst amount, 5 wt.%; reaction temperature, 65 �C; and a stirring rate of 500 rpm. …”
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    Article
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    Utilization of waste crab shell (Scylla serrata) as a catalyst in palm olein transesterification by Boey, Peng-Lim, Maniam, Gaanty Pragas, Abd Hamid, Shafida

    Published 2009
    “…Parametric study has been investigated and optimal conditions were found to be methanol/oil mass ratio, 0.5:1; catalyst amount, 4 wt. %; and reaction temperature, 338 K. …”
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    Article
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    Influence of coir random fibre length on concrete: mechanical properties by Misnon, Noor Aina, Che Osmi, Siti Khadijah, Shahidan, Shahiron, Chouw, N.

    Published 2017
    “…Four different fibres contents were added to the concrete; 1%, 2%, 3% and 5% of the cement weight. The cement, sand and aggregate ratio used was 1:2:2, with water cement ratio in the range of 0.48 to 0.65. …”
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    Article
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    The potential of using citrullus lanatus, moringa oleifera and hibiscus as natural coagulant for wastewater treatment by Ayop, Nur Aisyaa, Ruslan, Nurul Aina Najwa, Mohd Aripen, Nur Shahirah

    Published 2024
    “…Following that, at 0.1g of moringa oleifera coagulant dosage, there was a significant decrease in both parameters, with an average turbidity and pH reduction percentage of 13.6% and 3.5% respectively. Hence the lowest the speed of rotation, the effective of coagulant decreases and the lower amount of natural coagulant dosage used the higher the percentage turbidity and pH reduction…”
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    Conference or Workshop Item
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    Shear resistance improvement of oil-contaminated ballast layer with rubber shred inclusions by Chan, Chee Ming, S.M Johan, Siti Farhanah

    Published 2016
    “…This paper describes the inclusion of rubber shreds (≤10 mm in length, 1.5 mm thick) derived from the inner tubes of motorcycle tyres in oil-contaminated ballast layer for shear resistance improvement. …”
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    Article
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