نتایج جستجو برای: layers thickness
تعداد نتایج: 203824 فیلتر نتایج به سال:
To study the way of folding handmade carpets, the selected sample has been put under pressure of 50g/cm2 weight at three different states. The pressure has increased uniformly and continuously at 100,200, 500, 1000 and 1500 g/cm2. The thickness of the carpet has been recorded continuously during the measurement of the thickness of the carpet sample. The pressing parameters of the carpet have be...
Optical thickness determination with miniaturized spectrometers is a commonly used technique that works quite well in many applications. For sintered materials however, this must be extended by the of optical constants material. This can done using combination scanning electron microscopy and effective medium approaches. In article, we demonstrate for Al2O3 layers quartz tubes.
seismic refraction and downhole survey were employed to study dynamic characteristics of subsurface materials in bam city, southeast of iran. the data acquisition was performed at 160 p and s-wave refraction stations and 15 boreholes in the city. to derive velocity depth sections along these profiles as well as to perform downhole diagrams, seisimager software was used. based on the obtained va...
In this paper, an analytical model based on Modified Slab Method is presented for rolling of clad sheet or double-layers in which the two layers are bounded prior to rolling. This model considers the general case of asymmetrical rolling due to unequal 
surface speed, different contact friction, roll diameters, flow stress, and thickness ratios of the two layers. Using this model, rolling par...
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