نتایج جستجو برای: thermal variable measurement

تعداد نتایج: 890828  

احمدی, کامران, کاوه‌ای, اشکان, کاوه‌ای, قاسم ,

(Bi2Te3)0.25(Sb2Te3)0.75 solid solution is a p type thermoelectric compound with optimum efficiency among the (Bi2Te3)x (Sb2Te3)1-x compounds with variable x. Increment of Bi2Te3 segment in the Bi-Sb-Te system decrease in hole concentration, which result in carriers transport tuning, an increment of Seebeck coefficient and decrement of electrical and thermal conductivities. An excess of Telluri...

Journal: :journal of heat and mass transfer research 0
reza keimanesh m.sc. of mechanical engineering, k. n. toosi university of technology,tehran, iran cyrus aghanajafi faculty of mechanical engineering, k. n. toosi university of technology,tehran, iran

the present study deals with the analysis of the effects of radiative heat transfer of micropolar fluid flow over a porous and stretching sheet in the presence of magnetic field. the dynamic viscosity and thermal conductivity coefficient have formulated by temperature-dependent relations to obtain more exact results. the flow is supposed two-dimensional, incompressible, steady and laminar and t...

2009
S. E. Smrekar G. Mungas G. Peters

Introduction: Interior heat flow provides essential constraints on the thermal and chemical evolution of planetary bodies. On the moon, heat flow instrument designs typically have to reach depths below the annual solar thermal wave for the Moon (2-3 m), or alternatively methods must be applied to be able to decouple the influence of the relatively large temperature gradients associated with the...

2017
Faming WANG

Evaporative resistance has been widely used to describe the evaporative heat transfer property of clothing. It is also a critical variable in heat stress models for predicting human physiological responses in various environmental conditions. At present, sweating thermal manikins provide a fast and cost-effective way to determine clothing evaporative resistance. Unfortunately, the measurement r...

The effect of partial slip and temperature dependent fluid properties on the MHD mixed convection flow from a heated, non-linearly stretching surface in the presence of radiation and non-uniform internal heat generation/absorption is investigated. The velocity of the stretching surface was assumed to vary according to power-law form. Thermal transport is analyzed for two types of non-isothermal...

Journal: :international journal of industrial mathematics 0
m. abd el-aziz king khaled university, faculty of science, mathematics department, abha 9004, saudi ‎arabia‎‎. department of mathematics, faculty of science, helwan university, cairo, egypt p. o. box 1179‎5‎‎‎.

the effect of partial slip and temperature dependent fluid properties on the mhd mixed convection flow from a heated, non-linearly stretching surface in the presence of radiation and non-uniform internal heat generation/absorption is investigated. the velocity of the stretching surface was assumed to vary according to power-law form. thermal transport is analyzed for two types of non-isothermal...

Journal: :The Review of scientific instruments 2013
Jun Liu Jie Zhu Miao Tian Xiaokun Gu Aaron Schmidt Ronggui Yang

The increasing interest in the extraordinary thermal properties of nanostructures has led to the development of various measurement techniques. Transient thermoreflectance method has emerged as a reliable measurement technique for thermal conductivity of thin films. In this method, the determination of thermal conductivity usually relies much on the accuracy of heat capacity input. For new nano...

2015
Benjamin Rosenzweig Alparslan Oztekin

............................................................................................................................. 1 Chapter 1: Introduction .................................................................................................... 2 1.1 Motivation ............................................................................................................................. 2...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه مواد و انرژی - پژوهشکده سرامیک 1392

thermal barrier coatings (tbcs) are used to provide thermal insulation to the hot section components of gas turbines in order to enhance the operating temperature and turbine efficiency. hot corrosion and thermal shocks are the main destructive factors in tbcs which comes as a result of oxygen and molten salt diffusion into the coating. in this thesis atmospheric plasma spraying was used to dep...

Journal: :Journal of Neurology, Neurosurgery & Psychiatry 1985

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