نتایج جستجو برای: temperature variation

تعداد نتایج: 729561  

2013
Ahmed M. Nasr Moustafa Hamed Hamid Muhammed Moustapha Hassan

In the medical field, new technologies are incorporated for the sole purpose of enhancing the quality of life for the patients and even for the normal healthy people. Infrared technology is one of the technologies that have some applications in both the medical and biological fields. In this work, the thermal infrared (IR) measurement is used to investigate the potential of skin cancer detectio...

In friction stir welding frictional heat is generated by the rotating tool, sliding over the stationary plate along the weld centre. Tool being the only source of heat producing member, its geometrical design influences the heat generation rate. In this present work, effects of variation in tool shoulder and tool pin taper angles on thermal history during joining are analysed. Tools with triang...

Journal: :The Journal of experimental biology 2004
C J Pendlebury M G MacLeod D M Bryant

The effect of temperature variability on laying birds was studied experimentally, using Japanese quail. Two aspects of temperature variability were investigated: the effects of regular daily variation in temperature, and of a sudden change in temperature. Both of these may become more common as a consequence of climate change. These manipulations were carried out at two levels of food supply. E...

عباس انواری, , محبوب حسین پور, , محمود قرآن نویس, ,

 In this paper we have used plasma electron cyclotron emissions at the second harmonic frequency of extraordinary mode to determine the temperature profile of the plasma produced in IR-T1 Tokamak. The emissions obtained at different frequencies by a 5-channel heterodyne receiver, have been analyzed to determine the spatial variation of the electron temperature on the plasma cross section. The r...

Journal: :iranian journal of animal biosystematics 0
f tabatabaei yazdi d adriaens

this study investigates skull variation in persian jird, meriones persicus (blanford, 1875) in relation to the geoclimatical conditions across its distribution range. the pattern of correlations between geoclimatical variables and geometric shape descriptors for 221 ventral crania was studied by landmark-based geometric morphometric techniques. the covariation between shape and geoclimatical va...

Journal: :علوم زراعی ایران 0
سیدمحمد سرمدنبوی حمید رحیمیان مشهدی

in order to evaluate the different photoperiod and temperature sensitive pre-flowering phases in two cumin landraces a raciprocal transfer experiment from photoperiod 8 h to 16 h and vice versa under two different day/ night temperatures 20/10 and 30/20 ˚c was conducted. two model including ellis and adams were used to analyse the data and to quantify the duration of different developmental pha...

Journal: :Journal of the American College of Cardiology 2014

Journal: :Railway Engineering Science 2022

Abstract There currently does not exist in industry a reliable method for the detection of rail foot flaws. Like their head-based counterparts, flaws result broken with potentially catastrophic consequences. A proposed area research these is thermography, non-contact measuring and analysing infrared emissions from an object under test. In industry, active excitation thermography most common, re...

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