Browsing A - Mathematics and Natural Sciences by Issue Date
Now showing items 21-40 of 501
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Model Variasi Kalender Untuk Peramalan Volume Penjualan Tiket Penumpang Speedboat di Dermaga Kampung Baru Balikpapan
(Program Studi Statistika FMIPA Universitas Mulawarman, 2012-05-01) -
PENGARUH SUHU PADA PEMANFAATAN ABU TANDAN KOSONG KELAPA SAWIT SEBAGAI KATALIS REAKSI TRANSESTERIFIKASI MINYAK BIJI KARET (Hevea brassiliensis) MENJADI BIODIESEL
(Jurusan Kimia FMIPA Universitas Mulawarman, 2012-11) -
Analisis kemampuan kiambang (Salvinia molesta) untuk menurunkan konsentrasi ion logam Cu (II) pada media tumbuh air
(Jurnal Kimia Mulawarman, 2013)ABSTRACT This research was purposed to know about the water lettuce (Salvinia molesta) absorption ability for metal Cu (II) ion and the influence of plant sum variation and its contact time. The simulation is done by ... -
IMPLEMENTASI BAKU MUTU AIR LIMBAH BERBASIS DAYA TAMPUNG BEBAN PENCEMARAN BADAN AIR PENERIMA PADA KEGIATAN PERTAMBANGAN BATUBARA
(Jurnal Kimia Mulawarman, 2013-05)ABSTRACTThis research is based on the fact that many rivers in East Kalimantan are complained to be polluted by coal mining activities even though many rules to protect surface waters are in place and obeyed. To explain ... -
Decanter cake as a feedstock for biodiesel production: A first report
(Elsevier, 2013-07-24) -
Model Regresi Weibull Trivariat
(2013-08-15) -
Jurnal Internasional Bereputasi - 2013 ECM5269
(2013-10-01)For many years, the cost of production has been the main barrier in commercializing biodiesel, globally. It has been well researched and established in the literature that the cost of feedstock is the major contributor. ... -
Pemanfaatan Cangkang Biji Aren (Arenga pinnata) untuk Arang Aktif Sebagai Adrorben terhadap Penurunan Fenol
(Jurusan Kimia Universitas Mulawarman, 2013-11-16)The Research about utilization of Palm Kernel Shell (Arenga pinnata) for Activet Carbon as Adsorbent for Phenol Rediction has been done. The research own to know then influence of pH, contact time and the optimum of ... -
CO2 adsorption by amine modified siliceous mesostructured cellular foam (MCF) in humidified gas
(Elsevier, 2013-11-27)A set of branched and linear polyethyleneimine (PEI) modified mesocellular siliceous foams (MCF) were evaluated as adsorbents for CO2 capture at modestly elevated temperatures under conditions that simulate the vacuum swing ... -
Jurnal Internasional Bereputasi - 2013 Decantercake ECM "Decanter Cake as a Feedstock For
(2013-12-01)Decanter cake (DC), with an oil content of 11.5 ± 0.18 wt.%, was subjected to ultrasound-aided transesterification using boiler ash as a base catalyst, petroleum ether and hexane as co-solvents. Optimization work revealed ... -
PEMANFAATAN BIOMASSA BATANG PISANG (Musa paradisiaca) YANG TERIMMOBILKAN PADA ABU BATU BARA SEBAGAI PENGADSORPSI ION LOGAM BESI (Fe)
(Jurnal Pendidikan Kimia, 2014)Abstract The using of banana stem biomass (Musa paradisiaca) was immobility at ash coal as an adsorb in metal ions iron (Fe) have been researhed. The adsoption capacity determine of metal ions iron (Fe) used Isoterm ... -
Transesterification of waste cooking oil over alkali metal (Li, Na, K) supported rice husk silica as potential solid base catalyst
(Engineering Science and Technology: an International Journal, 2014-02) -
Reactions with CO/H2O of Two Marine Algae and Comparison with Reactions under H2 and N2
(American Chemical Society, 2014-04-21)The reactions of a strain of marine alga Chlorococcum sp. and of a polystrain containing a mixture of marine algae with CO/H2O have been studied. The yields and chemical composition of the products obtained from the reactions ... -
STUDI KUANTUM FARMAKOLOGI SENYAWA TURUNAN SULFONAMIDA2,4 DIAMINO 6 QUINAZOLINE SEBAGAI ANTIMALARIA DENGANMENGGUNAKAN METODE AB INITIO
(Jurnal Kimia Mulawarman, 2014-05)ABSTRAKTelah diterapkan metode berbasis Ab-Initio dalam suatu analisa QSAR (Quantum Structure ActivityRelationship) untuk dapat membuktikan dimana letak pusat aktif senyawa sulfonamida yang telahdiketahui nilai persen ... -
PEMANFAATAN KARBON AKTIF DARI BATUBARA KOTOR(DIRTY COAL) SEBAGAI ADSORBEN ION LOGAMCd2+ DAN Pb2+ DALAM LARUTAN
(Jurnal Kimia Mulawarman, 2014-05)ABSTRACTThe research of activated carbon utilization of dirty coal as an adsorbent ion cadmium (Cd) and plumbum(Pb) has been done. In this research, the variations of solutions pH value (1, 2, 3, 4, 5 and 6), contact time(5, ... -
TOXICITY AND ANTIMICROBIAL ACTIVITY FROM EXTRACT AND OLEANAN DERIVATIVE COMPOUNDS OF THE BARK MELOCHIA UMBELLATE (HOUTT) STAPF VAR. DEGRABRATA
(International Journal of Pharma and Bio Sciences, 2014-07)Oleanan derivative compound namely 3-acetyl-12-oleanen-28-oic acid, has been isolated from n-hexane fraction of the bark M. umbellate (Houtt) Stapf var. degrabrata The molecular structure was determined by IR spectroscopy, ... -
Novel utilization of waste marine sponge (Demospongiae) as a catalyst in ultrasoundassisted transesterification of waste cooking oil
(Ultrasonics – Sonochemistry, 2014-08-21)