نتایج جستجو برای: zero flux plane method

تعداد نتایج: 1916467  

Journal: :فیزیک زمین و فضا 0
امید غفارپسند استادیار، گروه فیزیک، دانشگاه اصفهان، ایران فهیمه حسینی بالام دانشیار، گروه فیزیک، دانشگاه اصفهان، ایران اسماعیل حسن زاده استاد، گروه فیزیک، دانشگاه اصفهان، ایران

in this study, the dispersion mechanisms of aerosols suspended in a turbulent plane channel flow is investigated using a novel numerical approach. a turbulent channel flow is simulated by a direct numerical simulation (dns) method, for which no-slip boundary conditions are assumed at the top and bottom walls, while periodicity conditions are applied on the other sides. dns, in particular, allow...

Journal: :Anesthesia and analgesia 2014
Yashar Eshraghi Vivian Nasr Ivan Parra-Sanchez Albert Van Duren Mark Botham Thomas Santoscoy Daniel I Sessler

BACKGROUND Although core temperature can be measured invasively, there are currently no widely available, reliable, noninvasive thermometers for its measurement. We thus compared a prototype zero-heat-flux thermometer with simultaneous measurements from a pulmonary artery catheter. Specifically, we tested the hypothesis that zero-heat-flux temperatures are sufficiently accurate for routine clin...

Five new mathematical triple fouling models were developed to explore the flux decline behavior during the microfiltration. The first model was developed by the assumption of the successive effects of standard mechanism, intermediate pore blockage and cake formation by using the standard blocking flux expression in the model calculations. The second and third models also obtained by the success...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1379

برای استفاده از روش تفاضلهای محدود ‏‎(finite difference method)‎‏ در حل عددی معادلات حاکم بر جریانهای لزج با مرزهای پیچیده، معمولا این معادلات در یک دستگاه مختصات محاسباتی که منطبق بر مرزهاست نوشته میشوند. برای این منظور میبایست ابتدا شبکه ای که رابطه بین حوزه های فیزیکی و محاسباتی جریان را مشخص میکند، محاسبه شود. هدف از انجام این تحقیق تولید یک شبکه متعامد منطبق بر مرزها در حوزه جریان دو بعدی ...

2017
H. Rasmussen P. Vadstrup H. Børsting

This paper presents a simple control method for controlling permanent magnet synchronous motors (PMSM) in a wide speed range without a shaft sensor. The method estimates the stator flux by integration of the measured BEMF signal. To compensate for the offset in the BEMF the offset is estimated. The control method is made robust at zero and low speed by changing the direct vector current compone...

2004
Tetsuji Kimura Hiroshi Umetsu

In this doctoral thesis we study zero-mode spectra of Matrix theory and eleven-dimensional supergravity on the plane-wave background. This background is obtained via the Penrose limit of AdS4 × S7 and AdS7 × S4. The plane-wave background is a maximally supersymmetric spacetime supported by non-vanishing constant four-form flux in eleven-dimensional spacetime. First, we discuss the Matrix theory...

Journal: :journal of dental research, dental clinics, dental prospects 0
katayoun sadr faculty of dentistry, tabriz university of medical sciences makan sadr

background and aims. orientation of the occlusal plane is one of the most important clinical procedures in prosthodontic rehabilitation of edentulous patients. the aim of this study was to define the best posterior reference point of ala-tragus line for orientation of occlusal plane for complete denture fabrication. materials and methods. fifty-three dental students (27 females and 26 males) wi...

Journal: :Journal of the Magnetics Society of Japan 1992

2004
David Legrady Eduard Hoogenboom

Visualization of space dependency of quantities of interest is not typically a task to set for Monte Carlo calculations. Often it is, though, useful and desired. Most commonly, it is done by segmenting the phase space into meshes on a surface, and obtaining estimates in each subregion. In this paper we investigate the possibility of using an orthogonal function basis for visual description of t...

2008
MIHAI CARA MATTHEW L. LISTER

We show that using either the method of Page & Carrera or the well-known 1/Va method to construct the binned luminosity function (LF) of a flux limited sample of Active Galactic Nuclei (AGN) can produce an artificial flattening (or steepening in the case of negative evolution) of the binned LF for bins intersected by the flux cutoff of the sample. This effect is more pronounced for samples with...

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