A - Mathematics and Natural Sciences: Recent submissions
Now showing items 301-309 of 309
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SOSIALISASI DAN PELATIHAN MANAJEMEN KESELAMATAN DAN KESEHATAN KERJA LABORATORIUM BAGI GURU-GURU SMA DARI KOTA SAMARINDA DAN TENGGARONG
(Jurnal pengabdian masyarakat MIPA dan Pendidikan MIPA (JPMMP), 2018)Merujuk pada Undang-Undang No. 1 tahun 1970 tentang Keselamatan dan Kesehatan Kerja (K3), laboratorium sebagai sarana pendidikan mempunyai resiko sebagai tempat terjadinya gangguan pada K3. Oleh karena itu perlu adanya ... -
desa WISATA HIDROPONIK SEBAGAI UPAYA PEMBERDAYAAN MASYARAKAT DESA SIDOMULYO KECAMATAN ANGGANA KABUPATEN KUTAI KARTANEGARA
(jurnal Pengabdian kepada masyarakat (JPKM) Unimed, 2018)Hydroponic tourism village as an effort of community empowerment of Sidomulyo village, Anggana district, Kutai Kartanegara regency. In the modern era, a village is required to be able to play an active, independent and ... -
Flavonols from the Leaves Lygodium Microphyllum (lygodiaceae)
(Jurnal Kimia (Journal of Chemistry),, 2017)Flavonol compounds, quercetin (1) and quercetin-3-O-?-D-glucopyranoside (2) have been isolated from the ethyl acetate extract of Lygodium microphyllumleaves. The chemical structures of flavonol compounds were ... -
Stigmast-5(6)-en-3?-ol dari Herba Tumbuhan Krokot (Lygodium microphyllum)
(JURNAL KIMIA VALENSI, 2015)Suatu senyawa steroid, stigma-5(6)-en-3?-ol atau ?-sitosterol (1) telah diisolasi dari ekstrak n-heksana herba tumbuhan krokot (Lygodium microphyllum). Struktur kimia senyawa 1 diidenfikasi berdasarkan data-data spektroskopi ... -
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 ... -
Titania-Loaded Coal Char as Catalyst in Oxidation of Styrene with Aqueous Hydrogen Peroxide
(International Journal of Chemical Reactor Engineering, 2017)Titania-loaded coal char catalyst was successfully prepared. The preparation steps involved pyrolysis of low rank coal at different temperatures and durations, sulfonation, impregnation of titanium(IV) isopropoxide, and ... -
Utilization of low rank coal as oxidation catalyst by controllable removal of its carbonaceous component
(Journal of the Taiwan Institute of Chemical Engineers, 2015)Controlled removal of carbonaceous component in low rank coal by sulfonation followed by calcination demonstrated that it is a simple and effective method to utilize this material as catalyst in the oxidation of styrene. ... -
Titanium Dioxide-Supported Sulfonated Low Rank Coal as Catalysts in the Oxidation of Styrene with Aqueous Hydrogen Peroxide.
(Jurnal Teknologi, 2014)Titanium dioxide supported sulfonated low rank coal catalyst possesses high catalytic activity in liquid phase oxidation of styrene with aqueous hydrogen peroxide at room temperature. The catalysts were prepared by ... -
Sosialisasi dan Pelatihan Manajemen Keselamatan Dan Kesehatan Kerja Laboratorium Bagi Guru-Guru SMA Dari Kota Samarinda Dan Tenggarong
(Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA, 2018-01-01)Referring to the Indonesian Law, UU No. 1 tahun 1970, Occupational and Health Safety (OHS), laboratory is a place that has several hazards and potential risks to health and safety. Furthermore, OHS management for Senior ...