نتایج جستجو برای: fibermatrix interface

تعداد نتایج: 205769  

Journal: :international journal of occupational hygiene 0
adel mazloumi department of occupational health engineering, school of public health, tehran university of medical sciences, tehran, iran. zeinab kazemi department of occupational health engineering, school of public health, tehran university of medical sciences, tehran, iran. gabraeil nasl-saraji department of occupational health engineering, school of public health, tehran university of medical sciences, tehran, iran. sedighe barideh iran railway research center, tehran, iran.

q uality of working life (qowl) is the attitudes of employees towards their job, especially their work outcomes including job satisfaction, mental health, and safety which directly influence organizational outcomes. therefore, the aim of the present study was to evaluate train drivers' qowl and determine its influencing factors. in this descriptive-analytical and cross-sectional study, qowl was...

ژورنال: مواد پرانرژی 2018

In the present research, the influences of explosive welding parameters on the corrosion behavior of the three layer explosive welds of the tubes Al 5083 / Al 1050 / stcr18Ni9Ti in the salt environment was investigated. The selected parameters included the stand-off distance and the thickness of the explosive charge. Therefore, two samples A and B were welded with stand-off distances of 6 and 6...

 In this research, a numerical modeling was utilized to calculate the stresses caused during thermal cycling in a functionally graded thermal barrier coating (FG - TBC). The temperature – dependent material response of this protective material was taken into account and the effects of thermal cycle and interface morphology of the ceramic / metallic layer in functionally graded coating system wa...

A. H. Korayem A. K. Hoshiar M. H. Korayem N. N. Ashtiani

With the rise in the use of AFM (Atomic Force Microscope), we have witnessed a growing use of atomic microscope based nanorobots in the precise displacement of various particles. There are certain limitations to the application of nanorobots in the moving of nanoparticles. One of the most important of these limitations is the lack of an appropriate image feedback concurrent with the displaci...

Abstract One of the methods of increasing soil resistance against failure is soil reinforcement using geosynthetics. Soil-geosynthetic interactions are of great importance and are affected by friction and adhesion at their interface. Soil gradation, contact surface roughness and geotextile density are among the factors affecting soil-geotextiles interaction this study, to investigate the eff...

ملکی جیرسرایی, ناهید , گودرزی, معصومه,

 We studied the growth of viscous fingers as a Laplacian growth by conformal mapping. Viscous fingers grow due to Saffman-Taylor instability in the interface between two fluids, when a less viscous fluid pushes a more viscous fluid. As there was an interest in the rectangular Hele-Shaw cell, we solved the Laplacian equation with appropriate boundary conditions by means of conformal mapping tech...

Purpose: evaluation of the user interface of the management system of Iran Public Libraries Foundation (Saman) is the main aim of the paper. Saman is a newly developed web based and integrated library software that seemingly works as a library OPAC.  Methodology: This research is an applied study and tries to investigate the usability standards of Saman website through heuristic evaluation met...

Journal: :journal of theoretical and applied vibration and acoustics 0
hossein samadiyeh earthquake research center, ferdowsi university of mashhad, iran reza khajavi earthquake research center, ferdowsi university of mashhad, iran

among different discretization approaches, finite difference method (fdm) is widely used for acoustic and elastic full-wave form modeling. an inevitable deficit of the technique, however, is its sever requirement to computational resources. a promising solution is parallelization, where the problem is broken into several segments, and the calculations are distributed over different processors. ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2004
koroush khosravi darani hassan sabzyan asghar zeini-isfahani gholamabbas parsafar

in this work, a more accurate prediction of liquid evaporation flux has been achieved. the statistical rate theory approach, which is recently introduced by ward and fang and exact estimation of vapor pressure in the layer adjacent to the liquid–vapor interface have  been used for prediction of this flux. firstly, the existence of an equilibrium layer adjacent to the liquid-vapor interface is c...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1380

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