نتایج جستجو برای: pitzer model
تعداد نتایج: 2104372 فیلتر نتایج به سال:
a Pitzer College, 1050 N. Mills Avenue, Claremont, CA 91711, USA b Cornell University, Applied Economics and Management, 315 Warren Hall, Ithaca, NY 14853 USA c World Vision Canada, 1 World Drive, Mississauga, Ontario L5T 2Y4, Canada d Cornell University, Crop and Soil Sciences, 909 Bradfield Hall , Ithaca, NY 14853 USA e World Argoforestry Centre (ICRAF), P.O. Box 30677-00100 GPO, Nairobi, Ken...
Introduction: Phoenix showed the presence of ~1% perchlorate in the landing site regolith [1]. This ion is associated to sodium and magnesium [2], making these compounds ideal candidates for liquid brines on the surface. In addition, hydration-dehydration cycles may control the humidity. We study the stability of perchlorates (liquids and salts) under Martian conditions using a combination of e...
abstract this paper discusses several commonly used models for strategic marketing¹ including market environmental analysis methods (i.e. swot and pest analysis) and strategic marketing tools and techniques (i.e. boston matrix and shell directional policy matrix)and shows how these models may help a firm to achieve its strategic goals. at first, the main reason for doing this research is de...
The relation between climatic parameters (relative air humidity) and the water activity of the Urmia Sea water determines the possible maximum evaporation of the lake. Using the Pitzer thermodynamic approach, the activity of the Urmia Lake water during evaporation was calculated and compared to the present relative air humidity above the water. Present climatic conditions allow the Urmia Sea wa...
potentiometric investigation on {h2o+nano3+peg1500} mixtures were made at t=308.15k, using electrochemical cells with two ion-selective electrodes, (na+ glass) as the cation ion-selective electrode against (no3- solvent-polymer pvc) as the anion ion-selective electrode. the mean ionic activity coefficients of nano3 were measured at different concentrations of nano3 and peg. maximum concentrati...
rivers and runoff have always been of interest to human beings. in order to make use of the proper water resources, human societies, industrial and agricultural centers, etc. have usually been established near rivers. as the time goes on, these societies developed, and therefore water resources were extracted more and more. consequently, conditions of water quality of the rivers experienced rap...
We present a novel, thermodynamically consistent modification of the Pitzer-Debye-Hückel term and its extension for concentration dependent density, molar mass relative permittivity. This is validated ionic liquids by comparison with reference model from literature and, in contrast to similar extensions, also applied conventional salts small spherical ions aqueous, mixed non-aqueous solvents. T...
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