Browsing P - Mathematics and Natural Sciences by Author "Gunawan, Rahmat"
Now showing items 1-4 of 4
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ANALISIS KADAR ION LOGAM TIMBAL (Pb2+) PADA AIR, IKAN PATIN (Pangasius pangasius), IKAN MAS (Cyprinus carpio L.) DAN IKAN NILA (Oreochromis sp.) DI DANAU BEKAS GALIAN TAMBANG BATUBARA KECAMATAN TENGGARONG SEBERANG
Sihotang, Recha DMS; Sitorus, Saibun; Gunawan, Rahmat (Prosiding Seminar Nasional Kimia 2017, 2017)ABSTRACTAn Analysis of Lead Metal Ion Levels (Pb2+) has been conducted on water, Cat fish (Pangasius pangsius), Gold fish (Cyprinus carpio L)and Parrot fish (Oreochromis sp.)in abandoned coal mine lake in ... -
Electron transfer study between hydrogen molecules and graphene surface
Nasri; Subagyono, RR Dirgarini; Gunawan, Rahmat (IOP Publishing Ltd., 2020-06-30)Electron transfer studies on the interaction of graphene surface and hydrogen (H2) molecules have been carried out. The calculations were based on the Density Functional Theory (DFT) with a basis set of Generalized-Gradi ... -
In Silico Analysis of Flavonol Compound Against Mpro COVID-19
Allo, Veliyana L; Farhanah, Gabby Encha; Gunawan, Rahmat (AIP, 2022-10-18)Abstract. Mpro (main protease) is a protein that mediates the replication and transcription processes in viruses. Flavonols are flavonoid-derived compounds derived from Indonesian natural ingredients with potent antibacterial, ... -
PEMANFAATAN ARANG AKTIF DARI KULIT BUAH BINTARO (Cerbera Manghas) SEBAGAI ADSORBEN ION LOGAM Mn (II)
Margarita, Margarita; Sitorus, Saibun; Gunawan, Rahmat (Prosiding Seminar Nasional Kimia 2017, 2017)ABSTRACTThere has been research on the utilization of activated charcoal carbon as an adsorben of cerbera manghas shell in metal ions Mn. This research was intended to find the effects of pH value, contact ...