Results 51 to 60 of about 1,807,540 (186)
Polyelectrolyte chains in poor solvent. A variational description of necklace formation
, 2001 We study the properties of polyelectrolyte chains under different solvent conditions, using a variational technique. The free energy and the conformational properties of a polyelectrolyte chain are studied minimizing the free energy $F_N$, depending on ...
Lee, Namkyung +3 more
core +1 more source
A new thermodynamic model for the prediction of asphaltene precipitation in crude oil [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2010 It has been proved that asphaltene precipitation is a difficult problem to define and study. Precipitation of these complex and heavy organic compounds can cause serious problems in crude oil production and transportation, residual oil processing and ...
Alireza Fazlali +3 more
doaj
Jurnal Ilmu Dasar, 2012 Performance Cellulose acetate (CA) were characterized by the variation of solvent composition (acetone and formic acid) with a mole ratio of 5/10; 6/9; 7/8; 8.7; and 9/6 and the addition of additives MSG 6%. Characterization was conducted on the membrane
Dwi Indarti +2 more
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Journal of Education, Health and Sport, 2017 Tarczykowska Agata. Green solvents. Journal of Education, Health and Sport. 2017;7(9):224-232. eISSN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.893346 http://ojs.ukw.edu.pl/index.php/johs/article/view/4831 https://pbn.nauka.gov.pl/sedno-webapp/works/831625 The journal has had 7 points in Ministry of Science and Higher Education ...
openaire +3 more sources
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2019 The stability constants of copper complexes with isonicotinamide and the ligand protonation constants in a range of compositions of a water-ethanol solvent of 0.0 – 0.7 molar fractions of ethanol at 298.2 K and an ionic strength of the medium 0.25 ...
N.A. Chesnokova +2 more
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Small StructuresLithium metal batteries (LMBs) are regarded as one of the most promising candidates for next‐generation energy storage systems owing to their exceptionally high theoretical energy density and low redox potential.
Un Hwan Lee, Joonhee Kang
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Jurnal Farmasi Sains dan Komunitas, 2019 Daidzein, one of the isoflavone aglycones contained in tempeh, has several biological activities such as anti-inflammatory, anti-oxidant, anti-breast cancer, and suppression of expression of matrix metalloprotease-9. As a fermented product from soybeans,
Sri Hartati Yuliani +5 more
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Prediction of Solvent Effect on Asphaltene Precipitation at Reservoir Conditions [PDF]
Journal of Petroleum Science and Technology, 2012 The aim of the current study is to evaluate the effects of inhibitors or solvents on asphaltene precipitation under reservoir conditions. To this end, the interaction between live oil and solvent, and its side effects on precipitated/dissolved asphaltene
B. Mirzayi +2 more
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Nanomaterials, 2018 Four solvents (isopropanol (IPA), n-butyl alcohol (NBA), n-amyl alcohol (NAA), and n-hexyl alcohol (NHA)) were investigated to prepare CH3NH3I (methylammonium iodide, MAI) solutions to transform PbI2 film into CH3NH3PbI3 (MAPbI3) film.
Liang Chen +3 more
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Purification of ethanol for highly sensitive self-assembly experiments
Beilstein Journal of Nanotechnology, 2014 Ethanol is the preferred solvent for the formation of self-assembled monolayers (SAMs) of thiolates on gold. By applying a thin film sensor system, we could demonstrate that even the best commercial qualities of ethanol contain surface-active ...
Kathrin Barbe +3 more
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