نتایج جستجو برای: potential ytsf equation

تعداد نتایج: 1277583  

Journal: :journal of physical & theoretical chemistry 2014
z. yousefian n. shadmani

in this paper, one of the numerical solution method of one- particle, one dimensional timeindependentschrodinger equation are presented that allows one to obtain accurate bound state eigenvalues and functions for an arbitrary potential energy function v(x).for each case, we draw eigen functions versus the related reduced variable for the correspondingenergies. the paper ended with a comparison ...

A Ghorbanpour Arani, A Loghman, A.A Mosallaie Barzoki R Kolahchi

Time-dependent creep analysis is crucial for the performance and reliability of piezoactuators used for high-precision positioning and load-bearing applications. In this study history of stresses, deformations and electric potential of hollow rotating cylinders made of functionally graded piezoelectric material (FGPM), e.g., PZT_7A have been investigated using Mendelson’s method of successive e...

A Ghorbanpour Arani, A Jafarzadeh Jazi M Abdollahian M Mohammadimehr M.R Mozdianfard S Amir

This article presents an exact solution for an axisymmetric functionally graded piezoelectric (FGP) rotating disk with constant thickness subjected to an electric field and thermal gradient. All mechanical, thermal and piezoelectric properties except for Poisson’s ratio are taken in the form of power functions in radial direction. After solving the heat transfer equation, first a symmetric dist...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 1992
gh. parsafar f. kermanpour

using the lennard-jones (12-6) potential, a new equation of state is obtained that can predict properties of both gases and liquids relatively well. this equation of state is given as (z-a)v2=(a/v2)-b, where z is the compressibility factor, a and b are constants, and a is an adjustable parameter that depends on the temperature, volume and the nature of the fluid, and its expressions depends upo...

داودی, ایران, زرگر, یدالله , عشرتی, طیبه , هاشمی شیخ شبانی, اسماعیل,

The purpose of this study was developing, testing and modifying a model to understand the relationships between some psychological risk and protective factors to addiction potential. This study used structural equation modeling (SEM) to evaluate the associations between parenting styles and potential addiction mediated by novelty seeking, behavior problems and coping strategies in a sample of 5...

ژورنال: اعتیاد پژوهی 2020

Objective: Several factors including personality and social factors are effective on drug use. The purpose of the present study was to investigate the prediction model of students' addiction potential based on distress tolerance and differentiation with the mediating role of alexithymia. Method: The research method was descriptive and structural equation modeling. The statistical population of ...

بردبار, غلامحسین, خسروپور, بهروز, نورافشان, مریم,

In this paper, we have considered that the strange-star consists of quark matter from its center to surface. For quark matter, we have used two models, the MIT bag model and string-flip like model. In the bag model, the energy of the system has been considered the kinetic energy of the particles of system in addition to a constant B. We have considered two states for B, one of them is constant...

2008
Xingang Chen Richard Easther Eugene A. Lim

Inflation driven by a single, minimally coupled, slowly rolling field generically yields a negligible primordial non-Gaussianity. We discuss two distinct mechanisms by which a nontrivial potential can generate large non-Gaussianities. Firstly, if the inflaton traverses a feature in the potential, or if the inflationary phase is short enough so that initial transient contributions to the backgro...

2004
Su-Il Pyun

Hydrogen transport through Pd and metal-hydrides has been usually investigated by using potentiostatic current transient technique (chronoamperometry), on the basis of the diffusion-controlled model. This assumes that hydrogen diffusion in the electrode is very slow, while other reactions including interfacial charge transfer and hydrogen transfer are too fast to influence hydrogen transport, a...

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