Browsing A - Mathematics and Natural Sciences by Issue Date
Now showing items 241-260 of 501
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2020 J Atomik Karrina STUDY ON PHOTODEGRADATION ACTIVITY OF RHODAMINE B BY WO3/TIO2/SIO2 COMPOSITES IN VARIOUS MATERIAL WEIGHT CONDITION
(2020-03-25)A study on photodegradation activity of Rhodamine B by WO3/TiO2/SiO2 composites in various material weight condition has been conducted. The photocatalytic process was carried out in a closed reactor equipped with visible ... -
Upgrading Microalgal Biocrude Using NiMo/Al-SBA-15 as a Catalyst
(American Chemical Society, 2020-04-03)Biocrude from Chlorococcum sp. algae was hydrotreated in batch autoclaves in the presence and absence of Al-SBA-15 supports and NiMo/Al-SBA-15 catalysts with different Si/Al ratios and hence different acidities. Reaction ... -
Isolasi dan Identifikasi Steroid dari Ekstrak N-Heksana Daun Afrika (Vernonia amygdalina Del.)
(KOVALEN : Jurnal Riset Kimia, 2020-04-09)ABSTRACT : Isolation and identification of steroids from the n-hexane fraction of Vernonia amygdalina Del. was carried out. Separation and purification were performed using flash chromatographic and gravity chromatography. ... -
Water Quality Measurements with a Simple Molecular Analysis (PCR-RFLP) of the Microbiome in a Metropolitan River System in Japan
(Graduate Studies of Walailak University., 2020-05-14) -
PENGGUNAAN SPEKTROFOTOMETER UV DAN HPLC PADA ANALISIS KANDUNGAN KAFEIN KOPI ARABIKA DAN ROBUSTA
(Jurnal Atomik, 2020-06)Analysis of caffeine content in Arabica coffee and Robusta coffee using Ultra Violet (UV)spectrophotometersand High Performance Liquid Chromatography (HPLC)was carried out. Coffee samples were ... -
2020 Biodiesel from NiSO4 and rice husk ash
(2020-06-02)As one of the promising feedstocks for the development of biodiesel, palm fatty acid distillate (PFAD) has weaknesses such as the high free fatty acid (FFA) and water content. In order to overcome the weaknesses, the ... -
Biodiesel production using palm fatty acid distillate and rice husk silica supported NiSO4 as catalyst.
(AIP Conference Proceedings, 2020-06-02) -
POTENSI DAUN MANGROVE (Rhizopora mucronata) SEBAGAI ANTIDIABETES
(JURNAL ILMIAH MANUNTUNG, 2020-06-25)Rhizopora mucronate is a typical mangrove plant that easly found on the coast of Muara Badak Beach, Kutai Kartanegara Regency, East Borneo, Indonesia. The purpose of this research is to know the activity of active ... -
PENGARUH VARIASI WAKTU TERHADAP XILENA MENGGUNAKAN KARBON AKTIF DARI LIMBAH BATANG PISANG (Musa paradisiaca L)
(Jurnal Atomik, 2020-07)Test of activated carbon adsorption ability of banana stem waste (Musa paradisiacaL) on xylene has been carried out. In the characterization of activated carbon Scanning Electron Microscopy (SEM) was used to show the ... -
Analisis kadar logam Pb, Cd, Cu, As pada air, sedimen dan bivalvia di Pesisir Teluk Balikpapan
(Dinamika Lingkungan Indonesia, 2020-07)Abstract : Analysis of Heavy Metal Content of Pb, Cd, Cu, As in Water, Sediments and Bivalves in Coastal Waters of Balikpapan Bay. The study aims to analyze the levels of heavy metals (Pb, Cd, Cu, As) in water, sediment ... -
Pesut (Orcaella brevirostris) Distribution in Mahakam Watershed East Kalimantan from Time To Time (Case Study of Community Perception in East Kalimantan)
(International Journal of Innovative Science and Research Technology, 2020-07-05)Abstract:- Pesut Mahakam (Orchaella brevirostris) is an Indonesian freshwater dolphin that can only be found in the Mahakam River Basin in East Kalimantan. The Mahakam River is the main habitat for these animals, ... -
Jurnal Internasional
(Taylor&Frances, 2020-07-09) -
PEMANFAATAN BIJI WANYI (Mangifera caesia Jack.) DALAM PEMBUATAN ETANOL SECARA HIDROLISIS ENZIMATIS DAN FERMENTASI MENGGUNAKAN Saccharomyces cerevisiae
(Jurnal Atomik, 2020-08)Abstract : The utilization of wanyi seeds (Mangifera caesiaJack.) in making ethanol by enzymatic hydrolysis and fermentation using Saccharomyces cerevisiaehas been carried out. The method used is the hydrolysis ... -
Geographically Weighted Multivariate Logistic Regression Model and Its Application
(HINDAWI, 2020-08-01)This study investigates the geographically weighted multivariate logistic regression (GWMLR) model, parameter estimation, and hypothesis testing procedures. The GWMLR model is an extension to the multivariate logistic ... -
HUBUNGAN PANJANG-BOBOT DAN FAKTOR KONDISI IKAN NILEM (Osteochilus vittatus VALENCIENNES, 1842) DI PERAIRAN WADUK BENANGA, KALIMANTAN TIMUR
(Pusat Penelitian Biologi-LIPI, 2020-08-10) -
Artikel: EVALUASI DIET KOLIN DAN METIONIN TERHADAP PERTUMBUHAN DAN EFISIENSI PAKAN IKAN MAS (Cyprinus carpio)
(Universitas Diponegoro, 2020-08-14) -
Article:Acute and subchronic toxicity study of the ethanol extracts from ficus deltoidea leaves in male mice
(Open Access Macedonian Journal of Medical Sciences, 2020-08-14) -
One-month Progress of COVID-19 Cases in East Kalimantan, Indonesia
(the Scientific Foundation SPIROSKI, Rajko Zhinzifov, 2020-08-14)