نتایج جستجو برای: resistance to flow

تعداد نتایج: 10854285  

Journal: :journal of computational applied mechanics 0
seyed abdolkarim payambarpour school of mechanical engineering, college of engineering, university of tehran, tehran, iran hossein shokouhmand school of mechanical engineering, college of engineering, university of tehran, tehran, iran

heat and mass transfer, in this paper, is considered in one-row heat exchanger, that fins are hotter than air flow and water is added to fins. related governing equations are derived by analyzing a two-dimension model in a unique cell of a heat exchange. these equations are numerically solved by finite difference method. heat transfer and efficiency under partially wet surface are calculated by...

Journal: :علوم زیستی ورزشی 0
سید علیرضا حسینی کاخک دانشیار، دانشکدۀ تربیت بدنی و علوم ورزشی دانشگاه حکیم سبزواری، سبزوار، ایران پروین ضماند کارشناس ارشد تربیت بدنی، دانشکدۀ تربیت بدنی و علوم ورزشی دانشگاه حکیم سبزواری، سبزوار، ایران امیر حسین حقیقی دانشیار، دانشکدۀ تربیت بدنی و علوم ورزشی دانشگاه حکیم سبزواری، سبزوار، ایران میترا خادم الشریعه دانشجوی دکتری فیزیولوژی ورزش، دانشگاه رازی کرمانشاه، کرمانشاه، ایران

the purpose of study was the comparison of hormonal responses to resistance training with and without blood flow restriction. 14 girl students took part in a crossover design study. the subjects in 3 successive weeks randomly assigned in 3 states: control (con), traditional strength training (tst) and strength training with blood flow restriction (str). exercise was included leg extension, leg ...

Journal: :Hypertension 1999
A R Pries T W Secomb P Gaehtgens

-It is widely accepted that the early phase of primary hypertension is characterized by elevated cardiac output, whereas in later stages the increased blood pressure is due to increased peripheral resistance. To study long-term effects of increased blood flow on peripheral resistance, structural adaptation of microvascular networks in response to changes in blood flow was simulated using a prev...

Journal: :Egyptian Journal for Engineering Sciences and Technology 2004

2005
P. Gaehtgens

Resistance to blood flow through peripheral vascular beds strongly influences cardiovascular function and transport to tissue. For a given vascular architecture, flow resistance is determined by the rheological behavior of blood flowing through microvessels. A new approach for calculating the contribution of blood rheology to microvascular flow resistance is presented. Morphology (diameter and ...

Nowadays, microchannels as closed circuits channels for fluid flow and heat removal are an integral part of the silicon-based electronic microsystems. Most of previous numerical studies on microchannel heat sinks (MCHS) have been performed for a two-dimensional domain using constant properties of the working fluid. In this study, laminar fluid flow and heat transfer of variable properties Al2O3...

Journal: :cell journal 0

introduction: in order to determine the multidrug resistance (mdr) phenotype due to p-glycoprotein expression in haematological malignancies including acute myeloblastic leukemia (aml), a well-characterized p-gp expressing cell line was required to validate and standardize flow cytometric assays and to calibrate instruments. therefore, this resistant subline of k562 was established for the firs...

اسدزاده, فرخ, میرزایی, سلمان, نظرنژاد, حبیب ,

Resistance to surface flow such as Manning's and Darcy-Weisbach rouphness coefficients were an important input for estimating soil erosion by soil erosion process models. Also, it is very important for designing and implementing soil and water conservation practices. The objective of present research was predicting Manning's and Darcy-Weisbach rouphness coefficients in surface of a loess soil u...

Journal: :Journal of Statistical Mechanics: Theory and Experiment 2019

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