نتایج جستجو برای: common calculations

تعداد نتایج: 789525  

رفیعی, شهلا,

Background: The students with Specific Learning Disorders (SLD) have deficits in special aspects of perceptual processes involved in understanding or in using language, spoken or written, that may manifest itself to inability to listen, think, speak, read, write, spell or do mathematical calculations. Along with teachers, occupational therapist, speech therapist and psychologist help the studen...

Journal: :نشریه بازیافت آب 0
مصطفی داوودی نژاد تهران، دانشگاه تهران، دانش آموختة دانشکدة مهندسی شیمی پوریا بی پروا ساری، دانشگاه علوم کشاورزی و منابع طبیعی، دانشکدة علوم پایه احمد اکبرپور طلوتی تهران، دانشگاه تهران، دانش آموختة دانشکدة محیط زیست

producing biogas is the most common method of energy generation in municipal and industrial wastewater treatment plants in the world. methane production rate depends on degradation rate of organic pollutants in wastewater, temperature and treatment process. typical parameters for assessment of organic wastewater such as bod or cod indicate the potential to produce methane. there is no accurate ...

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

since the 1960s the age effects on learning both first and second language have been explored by many linguists and applied linguists (e.g lennerberg, 1967; schachter, 1996; long, 1990) and the existence of critical period for language acquisition was found to be a common ground of all these studies. in spite of some common findings, some issues about the impacts of age on acquiring a second or...

Journal: مهندسی دریا 2005
M.S. Seif, S.H. Sadathosseini, S.M. Mousaviraad,

Nowadays, various numerical methods are developed to extend computational fluid dynamics in engineering applications. One of the most useful methods in free surface modeling is Boundary Element Method (BEM). BEM is used to model inviscid fluid flow such as flow around ships. BEM solutions employ surface mesh at all of the boundaries. In order to model the linear free surface, BEM can be modifie...

Journal: :The Journal of chemical physics 2011
Olga L Malkina Stanislav Komorovský Lucas Visscher Vladimir G Malkin

A counterintuitive gauge-dependence of NMR shieldings for rare-gas dimers is presented and analyzed. It is shown that common belief about the existence of a natural gauge-origin for spherical atoms with respect to NMR shielding calculations is wrong.

Journal: :gas processing 0
hossein kaydani department of chemical engineering, faculty of engineering, shahid bahonar university of kerman, kerman, iran ali mohebbi department of chemical engineering, faculty of engineering, shahid bahonar university of kerman, kerman, iran mohammad hassan saffaripour department of mechanical engineering, faculty of engineering, shahid bahonar university of kerman, kerman, iran

gas compressibility factor (z-factor) is an important parameter widely applied in petroleum and chemical engineering. experimental measurements, equations of state (eoss) and empirical correlations are the most common sources in z-factor calculations. however, these methods have serious limitations such as being time-consuming as well as those from a computational point of view, like instabilit...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه دانشهای بنیادی (مرکز تحقیقات فیزیک نظری و - پژوهشکده علوم نانو 1392

among the low–dimensional allotropes of carbon, nanotubes and graphene have attracted very much attention from nano–science and nanotechnology specialists. they have been proposed as building blocks in nanometer device engineering. however, these structures are not defect–free. in this thesis, we focused on defective carbon nanotubes and graphene, and studied the effect of couple of very common...

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