نتایج جستجو برای: relative permeability

تعداد نتایج: 436186  

In this paper, we present a mathematical model for determining the optimal radius of the iron pole shape in spoke-type permanent-magnet (PM) machines (STPMM) in order to minimize the pulsating torque components. The proposed method is based on the formal resolution of the Laplace’s and Poisson’s equations in a Cartesian pseudo-coordinate system with respect to the relative permeability effect o...

Journal: :تحقیقات مهندسی کشاورزی 0
عبدالله همتیان سورکی دانشجوی دکتری علوم و صنایع غذایی دانشگاه فردوسی مشهد فریده طباطبایی یزدی استادیار گروه علوم و صنایع غذایی دانشگاه فردوسی مشهد مهدی قیافه داوودی عضو هیئت علمی مرکز تحقیقات کشاورزی خراسان رضوی سیدعلی مرتضوی استاد گروه علوم و صنایع غذایی دانشگاه فردوسی مشهد

barbari is a common iranian flat bread that has a short shelf life. the effect of low density polyethylene/clay nanocomposite film was investigated for the package and shelf life of the flat bread when stored at different temperatures and relative humilities with different percentages of nanoparticles. nanoclay concentrations of 2% and 6% were used for the nanocomposite and pure polyethylene wa...

Journal: :AJNR. American journal of neuroradiology 2015
R Jain B Griffith F Alotaibi D Zagzag H Fine J Golfinos L Schultz

BACKGROUND AND PURPOSE The purpose of this study was to investigate imaging correlates to the changes occurring during angiogenesis in gliomas. This was accomplished through in vivo assessment of vascular parameters (relative CBV and permeability surface-area product) and their changing relationship with increasing glioma grade. MATERIALS AND METHODS Seventy-six patients with gliomas underwen...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی (نوشیروانی) بابل - دانشکده مهندسی عمران 1386

چکیده ندارد.

2015
A. H. Alizadeh Mohammad Piri M. Piri

We investigate the effect of different saturation histories relevant to various oil displacement processes (including secondary and tertiary gas injections) on three-phase gas/oil/brine relative permeabilities of water-wet sandstone. It is found that three-phase water (wetting phase) relative permeability is primarily a function of water saturation and shows no dependency upon saturation histor...

2006
M. H. Ghazanfari M. Khodabakhsh R. Kharrat D. Rashtchian S. Vossoughi

To take capillary effect into account, a series of primary drainage experiments of water by a sample oil fluid have been studied. The experiments performed under different low flow rates on a horizontal glass type micromodel as a model of porous media. Based on conventional macroscopic flow equations, the relative permeabilities and capillary pressure are determined by parameter estimation tech...

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