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Hasil Pencarian

Ditemukan 2 dokumen yang sesuai dengan query
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Hutahuruk, Albert Hendrico
Studi pengaruh ekstrak daun physalis angulata (daun ciplukan) sebagai inhibitor ramah lingkungan pada baja API 5L dalam lingkungan HCL 1 M = Study of physalis angulata leaves extract as green inhibitor for API 5L steel in HCL 1 M environment
" ABSTRAK
Kemampuan ekstrak daun Physalis angulata daun ciplukan sebagai inhibitor ramah lingkungan di lingkungan HCl 1 M diinvestigasi menggunakan pengujian polarisasi linear dan weight loss. Adapun diinvestigasi flavonoid dan antioksidan yang menginhibisi permukaan Baja API 5L melalui pengujian FTIR. Variabel bebas yang dipakai yaitu ekstrak konsentrasi inhibitor dalam HCl 1 M, yakni 10 mL, 20 mL, 30 mL, 40 mL, dan 50 mL. Ekstrak daun ciplukan mengandung senyawaan flavonoid yang merupakan inhibitor campuran yang dominan katodik. ... "
2018
S-Pdf
UI - Skripsi Membership  Universitas Indonesia Library
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Supriyadi
Improving hydrogen physisorption energy using swcnts through structure optimization and metal doping substitution
" The effect of metal doping on the hydrogen physisorption energy of a single walled carbon nanotube (SWCNT) is investigated. Unlike many previous studies that treated metal doping as an ionic or charged element, in this study, lithium and magnesium are doped to an SWCNT as a neutral charged by substituting boron on the SWCNT (Boron substituted SWCNT). Using ab initio electronic structure calculations, the interaction potential energies between hydrogen molecules and adsorbent materials were obtained. ... "
Depok: Faculty of Engineering, Universitas Indonesia, 2016
UI-IJTECH 7:8 (2016)
Artikel Jurnal  Universitas Indonesia Library