نتایج جستجو برای: history of stresses
تعداد نتایج: 21185299 فیلتر نتایج به سال:
â in this article, we describe some features of a rediscovered medical text written in old persian (farsi dari) over one thousand years ago and discuss some of its significant attributes in relation to the historical background of the iranian scientific and literary renaissance of that era.
any change in the refractive index of a laser active medium can lead to serious degradation of beam quality, laser beam modes, laser performance and variation in the intensity distribution. alteration in the refractive index of laser active medium is especially notable in high power lasers. it is clear that in the laser beam production, the pumping agent induces a great amount of heat which...
the research office for the history of persian medicine will pay grant to the top researchers in the field of medical history. this award is named after abumaher shirazi, the father of shiraz medical doctrine in 10th century ad. this award will be paid annually. the ceremony of the first series of this award (2011-2012) will be held on 28 feb, 2013. following the announcement, winners will be s...
The durability of adhesive joints is of special concern in structural applications and moisture has been identified as one of the major factors affecting joint durability. This is especially important in applications where joints are exposed to varying environmental conditions throughout their life. This paper presents a methodology to predict the stresses in adhesive joints under cyclic moistu...
applications of thermoplastic composites have developed extensively. the thermoplastic composites in comparison with the thermoset composites have many advantages. thermoplastic composites can be melted and remolded many times. the duration of manufacturing process of these composites is short, producing very tough material, and the welding ability and multiple recyclings are their further adva...
Abstract Introduction: Marital satisfactions are the key to strength the family and heighten the physical, mental health and economic development which could effect on life and job satisfaction. Professional nurses are under various stresses during their shift work to provide excellent quality of life for patients. They have responsibility for their own personal life too. Due t...
the residual stresses in composite laminates depend on several factors including the conditions of fabricating process, property of materials, direction and lay-ups of the layers. however the thermo-elastic behavior of composite is one of the most important parameters affecting the magnitude of residual stresses. the elastic properties and residual stresses do not remain constant under cyclic t...
plants face many biotic and abiotic stresses at the same time during their growth under field conditions. plants responses toward combined stresses are often more complex than their responses to one type of stress in a way that the results of these responses are called as cross tolerance. this mixture of stresses activates specific models of gene expression that causes special signaling network...
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