نتایج جستجو برای: density profile

تعداد نتایج: 617643  

Journal: :physical chemistry research 0
mahmood moradi physics department, college of science, shiraz university, shiraz, iran bahareh binaei ghotbabadi physics department, college of sciences, shiraz university, shiraz 71454, iran

the density and polarization profiles of the dipolar hard ellipsoids confined between hard walls are studied using the density functional theory (dft). the hyper-netted chain (hnc) approximation is used to write excess grand potential of the system with respect to the bulk value. the number density is expanded up to zero and first order in polarization to find the results. for the zero order in...

Journal: :transport phenomena in nano and micro scales 0
h. nowruzi department of maritime engineering, amirkabir university of technology (tehran polytechnic), hafez ave, no 424, p.o. box 15875-4413, tehran, i. r. iran h. ghassemi department of maritime engineering, amirkabir university of technology (tehran polytechnic), hafez ave, no 424, p.o. box 15875-4413, tehran, i. r. iran

in the current study, five different atomistic water models (awms) are implemented, in order to investigate the impact of awms treatment on the water velocity profile and density number. for this purpose, molecular dynamics simulation (mds) of poiseuille flow in a nano-channel is conducted. considered awms are spc/e, tip3p, tip4p, tip4pfq and tip5p. to assessment of the ability of each model in...

H. Ghassemi H. Nowruzi

In the current study, five different atomistic water models (AWMs) are implemented, In order to investigate the impact of AWMs treatment on the water velocity profile and density number. For this purpose, Molecular dynamics simulation (MDS) of Poiseuille flow in a nano-channel is conducted. Considered AWMs are SPC/E, TIP3P, TIP4P, TIP4PFQ and TIP5P. To assessment of the ability of each model in...

عزت ا... ارضی, , علیرضا حسنی, , فرامرز اسماعیلی سراجی, ,

  In this paper, we suggest a novel model, based on input pump power and wave guidestructure, to calculate the Er-density profile in Erbium doped fiber amplifiers. This optimization is carried out for both SMF and DSF fibers. These optimized profiles have a Gaussian-like shape. Using the SMF optimized Er-density profile, high gain enhancement is obtained in a relatively short length of fibers. ...

ژورنال: علوم آب و خاک 2012
مهدی قمشی, , سیدمحمود کاشفی‌پور, , فرید کوتی, ,

In this paper, velocity profiles were analyzed under different conditions such as bed slope, discharge and concentration of density current, and water entrainment. Experiments were carried out in a tilting flume with the density currents being provided using salt and water solution. Results showed that the above mentioned factors have significant effects on the velocity profile characteristics....

Journal: interface and thin films 2018

In this study, we investigate the transparency of an overdense inhomogeneous plasma slab. This anomalous transmission is achieved when the conditions provided for the incident electromagnetic wave to excite coupled surface waves on the both sides of the slab. These conditions require that the homogeneous overdense plasma, or the metallic film, is placed between two dielectric layers. Here, the ...

حاج حیدری, زهره, شکوهی, طاهره , طاهری سروتین, مهدی, هدایتی, محمد تقی,

Background and purpose: Psoriasis is a common chronic and recurrent inflammatory skin disorder characterized by hyper proliferation of keratinocytes and infiltration of T cells, monocytes/macrophages and neutrophils to dermis and epidermis. Prevalence of cardiovascular disorders is remarkable in patients with psoriasis compared to normal individuals. Psoriasis is believed to have associations w...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2015
luo zuo

in the paper we developed a new method to determine the absolute amount of adsorption. this method relies on the excess adsorption isotherm and the density profile in the pore of one material. to compute the density profile and decrease complex calculation of obtaining the absolute amount of adsorption we introduced simplified local-density (sld) model. a few of appropriate parameters were acqu...

Journal: :journal of fasting and health 0
mohsen mazidi biochemistry and nutrition research center, school of medicine, mashhad university of medical sciences, mashhad, iran peyman rezaie biochemistry and nutrition research center, school of medicine, mashhad university of medical sciences, mashhad, iran ehsan karimi biochemistry and nutrition research center, school of medicine, mashhad university of medical sciences, mashhad, iran mohsen nematy biochemistry and nutrition research center, school of medicine, mashhad university of medical sciences, mashhad, iran

ramadan fasting during the month of ramadan is a religious obligation, practiced by millions of people around the world. ramadan fasting is essentially a fundamental change in lifestyle for one lunar month. this type of fasting may have significant effects on lipid profile. although there is no scientific consensus about the effects of fasting on cardiovascular risks such as changes in lipid pr...

Journal: :IEEE Transactions on Plasma Science 2004

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