Browsing A - Mathematics and Natural Sciences by Title
Now showing items 159-178 of 334
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Letter of Appoinment for Associate Editors_Bodhi Dharma in Jurnal Natural
(FMIPA USK, 2020-10-29) -
Mapping and Analysis Factors of Affecting Productivity Tropical Rain Forests in East Kalimantan
(2019)Up to 2019, tropical rainforests in East Kalimantan has been experiencing very rapid degradation and continues to shrink. Therefore, it is necessary to evaluate mapping and analysis of factors affecting the productivity ... -
Microelement Analysis In Edible Muscle Of Oreochromis Niloticus From Two Different Age Of Reclaimed Post Coal Mining Ponds East Kalimantan Using Sem-Edx
(INTERNATIONAL JOURNAL OF SCIENTIFIC & TECHNOLOGY RESEARCH, 2021-06)This study aims to evaluate the ultrastructure of the muscle and bioaccumulation of heavy metal elements in Oreochromis niloticus muscle as a biomarker of environmental pollution in post-coal mining ponds. The fishes sample ... -
Modification of Coal Char-loaded TiO2 by Sulfonation and Alkylsilylation to Enhance Catalytic Activity in Styrene Oxidation with Hydrogen Peroxide as Oxidant
(Bulletin of Chemical Reaction Engineering & Catalysis, 2016)The modified coal char from low-rank coal by sulfonation, titanium impregnation and followed by alkyl silylation possesses high catalytic activity in styrene oxidation. The surface of coal char was undergone several steps ...