نتایج جستجو برای: polar fluids

تعداد نتایج: 88844  

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2006
Akira Onuki

We present a Ginzburg-Landau theory of solvation of ions in polar binary mixtures. The solvation free energy arising from the ion-dipole interaction can strongly depend on the composition and the ion species. Most crucial in phase separation is then the difference in the solvation free energy between the two phases, which is the origin of the Galvani potential difference known in electrochemist...

Journal: :Analytical chemistry 2005
J D Jeyaprakash S Samuel Reinhard Steger Gerhard Birkle Roland Zengerle Peter Koltay Jürgen Rühe

In this work, we report on the surface modification of a micronozzle surface to enhance fluid dispensing in the nanoliter range. Unmodified dispensing chips usually suffer from lateral wetting of the nozzle surfaces by low surface tension liquids resulting in poor control of the volume of the dispensed fluid. Covalent attachment of a fluorinated acrylate polymer to the outer surface of the micr...

Journal: :The Journal of chemical physics 2009
B M Mognetti P Virnau L Yelash W Paul K Binder M Müller L G MacDowell

The prediction of the equation of state and the phase behavior of simple fluids (noble gases, carbon dioxide, benzene, methane, and short alkane chains) and their mixtures by Monte Carlo computer simulation and analytic approximations based on thermodynamic perturbation theory is discussed. Molecules are described by coarse grained models, where either the whole molecule (carbon dioxide, benzen...

In this paper, we first give a characterization of sub-topical functions with respect to their lower level sets and epigraph. Next, by using two different classes of elementary functions, we present a characterization of sub-topical functions with respect to their polar functions, and investigate the relation between polar functions and support sets of this class of functions. Finally, we obtai...

ژورنال: :iranian journal of earth science 0
c. srikantappa department of geology, university of mysore, manasagangotri, mysore 570 006, india m. r. kalantari department of geology, payamenoor university, iran m. n. malathi department of mines and geology, govt. of karnataka, chamarajnagar, 571 313, india.

the mesozoic mashhad granitoid plutons have intruded into ophiolite complexes, meta-sediments and pyroclastics in the binalood region, located sw of mashad city in the ne part of iran. based on petrography and geochemistry, the mashhad granitoids have been classified into 1) grey granite, 2) pink granite, 3) muscovite granite, 4) granodiorite and 5) pegmatite and quartz veins. granitoids show t...

2009
Kenneth Schweizer Gerard Wong

Dipole moments are ubiquitous in nature. Studying dipole moments is the first step toward understanding phase behavior of various colloids with strong dipole moments. Since the Dipolar Hard Sphere fluid (DHS) is the simplest model described by dipolar interactions, studying this model is fundamentally important for understanding the structures and thermodynamics of polar fluids. A variety of un...

Journal: :Applied spectroscopy 2004
Alan G Ryder Milosz A Przyjalgowski Martin Feely Boguslaw Szczupak Thomas J Glynn

Time-resolved fluorescence data was collected from a series of 23 bulk crude petroleum oils and six microscopic hydrocarbon-bearing fluid inclusions (HCFI). The data was collected using a diode laser fluorescence lifetime microscope (DLFLM) over the 460-700 nm spectral range using a 405 nm excitation source. The correlation between intensity averaged lifetimes (tau) and chemical and physical pa...

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