نتایج جستجو برای: equilibrium parameters

تعداد نتایج: 696518  

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده علوم پایه 1392

in this thesis,spin dependend transport and electron transport through of ng/sg(graphene/ superconductor graphen) are studied in the junction of ng/fgt/sg. due to andreev reflection conductance increases in the presence of superconductor graphene.also, by applying a voltage gate on a superconductor, fermi level shifts and the conductance is independent of ferromagnatic substrate. also, the cond...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده کشاورزی 1390

abstract this study is carried out to determine the chemical composition in the three vegetative stages of the haloxylon sp., degradation parameters, with adding naoh and ca(oh2 ). for this purpose, in may and october and january 2010 enough some haloxylon sp. of the ammary area was prepared. crude protein and ash percentage are decrease, neutral detergent fiber percentage with pragress stage ...

Abdorreza Mirhoseni Mohamad Taghi Zafarani Moattar

Accurate vapor-liquid equilibrium data have been obtained for ethyl acetate + 2-propanol and ethyl acetate + ethanol mixtures at 84.8 kPa, and the results are discussed thermodynamically. The vapor-liquid equilibrium data are correlated with redlich-Kister, Margules, Van-Laar and Ortega, equations the parameters and standard deviation of which are calculated and reported. The best correlati...

Journal: :Radiation detection technology and methods 2023

Abstract Purpose The physics design of the High Energy Photon Source (HEPS) was finished after many times iteration. Hereby, typical equilibrium electron beam parameters corresponding to proposed two baseline operation modes in HEPS are presented. Methods To compute beam, lattice parameters, RF and insertion devices (IDs) were determined first. Furthermore, it is more precise use full-current e...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده علوم 1391

in this thesis, we consider a mathematical model of cancer with completely unknown parameters. we study the stability of critical points which are biologically admissible. then we consider a control on the system and introduce situations at which solutions are attracted to critical points and so the cancer disease has auto healing. the lyapunov stability method is used for estimating the un...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2010
sayed siamak ashraf talesh shohreh fatemi sayed jalal hashemi peyman emrani

fine particles silicoaluminophosphate-34 were synthesized by hydrothermal sol-gel method. the effect of crystallization time, as one of the important synthesis factors on particle size and crystallinity, kinetic and equilibrium adsorption, and selectivity of co2 / ch4 has been studied in this work. the adsorption isotherms are obtained at moderate gauge pressures (100-3000 kpa) and temperatures...

Journal: :journal of computational applied mechanics 0
mohamad hasan rahimian دانشیار دانشکده مهندسی مکانیک دانشگاه تهران reza haghani phd student in school of mechanical eng.

in this paper the dynamic of a droplet on a surface with a hole is investigated under gravitational effect by using lattice boltzmann method. incompressible two-phase flow with high density ratio proposed by lee is considered. cahn’s theory is used to observe the wettability of the surface in contact with liquid and gas phases. several parameters such as contact angle, surface tension and gravi...

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