نتایج جستجو برای: component phase behavior

تعداد نتایج: 1715943  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2007
davood rashtchian saeed ovaysi vahid taghikhani cirous ghotbi

a method based on the genetic algorithm (ga) was developed to study the phase behavior of multicomponent and multiphase systems. upon application of the ga to the thermodynamic models which are commonly used to study the vle, vlle and lle phase equilibria, the physically meaningful values for the binary interaction parameters (bip) of the models were obtained. using the method proposed in this ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی مهندسی 1388

the purpose of this study is identifying effective factors which make customers shop online in iran and investigating the importance of discovered factors in online customers’ decision. in the identifying phase, to discover the factors affecting online shopping behavior of customers in iran, the derived reference model summarizing antecedents of online shopping proposed by change et al. was us...

Journal: :iranian journal of oil & gas science and technology 2014
seyyed milad salehi mahmood reza rahimi

it seems using the maxwell-stefan (m-s) diffusion model in combination with the vacancy solutiontheory (vst) and the single-component adsorption data provides a superior, qualitative, andquantitative prediction of diffusion in zeolites. in the m-s formulation, thermodynamic factor (г) isan essential parameter which must be estimated by an adsorption isotherm. researchers usually utilizethe simp...

2000
André G. Moreira Roland R. Netz

We study the phase behavior of solutions consisting of positive and negative ions of valence z to which a third ionic species of valence Z > z is added. Using a discretized Debye-Hückel theory, we analyze the phase behavior of such systems for different values of the ratio Z̄ ≡ Z/z. We find, for Z̄ > 1.934, a three-phase coexistence region and, for Z̄ > 2, a closed (reentrant) coexistence loop at ...

Journal: :International Journal of Molecular Sciences 2013

2013
Tahereh Rouhiparkouhi Thomas R. Weikl Dennis E. Discher Reinhard Lipowsky

The interplay of adhesion and phase separation is studied theoretically for two-component membranes that can phase separate into two fluid phases such as liquid-ordered and liquid-disordered phases. Many adhesion geometries provide two different environments for these membranes and then partition the membranes into two segments that differ in their composition. Examples are provided by adhering...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2012
Md Arif Kamal Antara Pal V A Raghunathan Madan Rao

The structure of the ripple phase of phospholipid membranes remains poorly understood in spite of a large number of theoretical studies, with many experimentally established structural features of this phase unaccounted for. In this article we present a phenomenological theory of phase transitions in single- and two-component achiral lipid membranes in terms of two coupled order parameters: a s...

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