نتایج جستجو برای: having thicknesses of several centimeters
تعداد نتایج: 21173182 فیلتر نتایج به سال:
A total of 167 individuals was studied which included 85 men and 82 women ranging in age from 20 to 59 years. The criteria for normalcy were based on the following requirements: 1) no history of cardiopulmonary disease, 2) normal chest x-ray film within six months. The total vital capacity was measured with a 6-liter Vitalometer having a 70centimeter noncorrugated rubber tube with an internal d...
Several ultrafiltration membranes of the anisotropic and isotropic type were characterized by means of the thermoporometry. Successive cooling and heating runs were performed in order to investigate the effects of the water-ice and ice-water phase transitions on the structure of the membranes. The results found for membranes having different casting thicknesses indicate that, in some cases, por...
the significance of the study of deixis was then mentioned. the purpose of the present study from the outset was to provide a comprehensive overview of all kinds of deixis in persian, describing and defining each in true while considering them structurally and semantically. chapter two consisted of two main parts. a review of the english studies in this respect, besides presenting persian liter...
چکیده : نظام انتخاباتی قواعد و چار چوب های به رسمیت شناخته شده ای است که بیانگر چگونگی تبدیل آرای مردم به مناصب و پست های سیاسی است. این نظام انتخابات باید به گونه ای عمل کند که نتیجه آن فراهم شدن مکانیسم و ساز و کار مطلوب و مناسب برای برگزاری انتخابات سالم و رقابتی باشد. به نظر می رسد نظام انتخاباتی جمهوری اسلامی ایران دارای ضعف ها و نواقصی است که به سبب آن ها نمی توان انتخابات مطلوب را برگزا...
Background & Aim: One of the important issues that affects the quality of hemodialysis is recirculation. Some researchers have suggested that the direction and distance of needle cannulation can affect the amount of recirculation. Therefore, this study aimed to investigate the effect of direction and distance of needle cannulation on recirculating of arteriovenous fistula in hemodialysis patien...
abstract due to the growing importance and influence of the self of the teacher in the field of educational and cognitive psychology, the current study intended to investigate the relationship between three teacher qualities and characteristics, i.e. teacher self efficacy, self regulation, and success as perceived by their learners. the study aimed at finding whether teacher self efficacy an...
Single crystals and polycrystalline diamond films of several thicknesses were deposited using oxygen/acetylene combustion flame technique. The substrate used was pure polycrystalline molybdenum subjected to mechanical polishing. Quality and microstructural characteristic of diamond produced were investigated using X-Ray diffraction, Raman Spectroscopy, Scanning and Transmission Electron Microsc...
Parametric design optimization of an automotive body crashworthiness improvement is presented. The thicknesses of parts are employed as design variables for optimization whose objective is to increase the maximum deceleration value of the vehicle center of gravity during an impact. Using the Taguchi method, this study analyzes the optimum conditions for design objectives and the impact factors ...
One application of energetic materials in the military is shaped charged warhead. The most important application of this type of warheads is penetration into target. For this purpose, several factors influence the design of shaped charge. Liner thickness is one of most effective factors in the design of shaped charge, which has a significant role in jet Velocity and depth of penetration in targ...
Linear epidermal nevi frequently follow the lines of Blaschko and may be confused with the verrucous stage of incontinentia pigmenti. Inflammatory epidermal nevus appears as a line array of pink to red papules usually on the lower limb (Buttock and hip) clinically resembling psoriasis or eczematous dermatitis. But inflammatory epidermal nevus has distinct histopathologic features. We report a c...
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