نتایج جستجو برای: heat radiation

تعداد نتایج: 432547  

Background and Objectives: Although Boilover occurs with a low frequency, but in case of occurrence, it can cause severe damage to people and equipment around the tank. The prediction of the fireball of Boilover phenomenon has an important role to play in adopting appropriate strategies for fire suppression of the atmospheric storage tank. The purpose of this study is to predict the consequence...

Journal: :journal of oil, gas and petrochemical technology 2014
parviz malekzadeh razieh nejati

non-fourier heat transfer analysis of functionally graded (fg) spherical shells subjected to the radiative-convective boundary conditions at their inner and outer surfaces are presented. it is assumed that the material properties have continuous variations along the thickness direction. the incremental differential quadrature method (idqm) as an accurate and computationally efficient numerical ...

   The present article describes the effects of thermal radiation and heat source/sink parameters on the mixed convective magnetohydrodynamic flow of a Casson nanofluid with zero normal flux of nanoparticles over an exponentially stretching sheet along with convective boundary condition. The governing nonlinear system of partial differential equations along with boundary conditions...

Journal: :journal of paramedical sciences 0
mojtaba navvabpour department of radiation technology paramedical sciences faculty, shahid beheshti university of medical sciences, tehran, iran mohammad navvabpour material engineering faculty, tehran university, tehran, iran mohammad ghane-e dehkordi medical radiation sciences faculty , shahid beheshti university of medical sciences, tehran, iran hossein nazari moghadam radiation technalogy sciences faculty , radiation technology department paramedical sciences , shahid beheshti university of medical sciences, tehran, iran seyed mohammad reza aazami department of radiation technology, 5 department of radiation technology,paramedical sciences faculty, shahid beheshti university of medical sciences, tehran, iran

the output of x-ray, especially in the field of required energy for diagnosing the disease is very low (in diagnosing lamps, it is less than 1%). in this kind of lamps the rest of the electrical energy is transformed to heat. this considerable amount of heat induces a myriad of too many limitations in choosing higher levels of radiation, particularly in specialized techniques. this process is t...

Journal: :The Journal of General Physiology 2003
W. T. Bovie Alice Klein

This paper is a report of some experiments on the effect of heat upon organisms which have been exposed to fluorite rays. The experiments have yielded valuable information concerning the mechanism of the action of rays. They show that the exposed organisms (P.aramecium caudatum) are made extremely sensitive to the influence of heat. The experiments are of interest because they show the necessit...

Journal: :Cancer research 1997
P Burgman H Ouyang S Peterson D J Chen G C Li

Heat shock prior, during, or immediately after ionizing radiation synergistically increases cell killing, a phenomenon termed hyperthermic radiosensitization. Recently, we have shown a constitutive DNA-binding factor in rodent cells that is inactivated by heat shock to be identical to Ku autoantigen. Ku, consisting of an Mr 70,000 (Ku70) and an Mr 86,000 (Ku80) subunit, is a heterodimeric nucle...

2012
C. S. WANG

A heat transfer model has been developed that uses quasi-steady heat flux relations to calculate the heat transfer from combustion gases through the cylinder wall to the coolant in an internal combustion engine. The treatment of convective heat transfer accounts for the physical problems of rotating and impinging axial flow inside the engine cylinder. The radiative heat transfer includes gas ra...

G. S. S. Raju L. Ramamohan Reddy M. C. Raju, S. M. Ibrahim

The paper aims at investigating the effects of chemical reaction and thermal radiation on the steady two-dimensional laminar flow of viscous incompressible electrically conducting micropolar fluid past a stretching surface embedded in a non-Darcian porous medium. The radiative heat flux is assumed to follow Rosseland approximation. The governing equations of momentum, angular momentum, energy, ...

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