نتایج جستجو برای: 50 and 60c
تعداد نتایج: 16882755 فیلتر نتایج به سال:
One of the most efficient methods to reduce emissions and fuel costs of SI engines in petrol case, is the use of combined gasoline and NG. The ability of an engine is usually expressed with maximum power and maximum torque output of full-load state, but the operating time of the engines with full-load is less than that of part-load time. Therefore, studying the performance of the engine with a ...
It is well known that chest X-ray imaging plays a very important role in the diagnosis of chest lesions in neonates 1) . However, concerns exist that the exposure of neonatal patients to increasing quantities of radiation through imaging will increase the future risk of cancer development. Additionally, the exposure dose received by the operator and attendants is also of concern, as they often ...
1 2 6 12 18 24 36 42 44 48 50 52 54 56 58 61 Summary Report overview 1. Recent trends in average fuel consumption for new cars 2. How great is the technical potential to reduce new car fuel consumption by 2020 and by 2030? 3. The critical distinction between the technical potential to improve fuel economy and how much of that technical potential is realized 4. Policies to encourage the producti...
in order to evaluate the effect of water deficit and different fertilizer levels on yield and some agro-morphological characteristics of moldavian balm, a split plot experiment was conducted in a randomized complete block design with three replications at the research farm of shahrekord university during 2013-2014 growing season. main factor was three levels of irrigation regimes including: 100...
Introduction: Biological effects of magnetic fields have been investigated by scientists for many years and a vast amount of research using different frequencies and intensities have been performed on humans and laboratory animals. The results of these studies, which have mostly been done by applying high frequencies, have shown that electromagnetic fields are effective on structure and functio...
پس از مطالعه معماری c60 به منظور بدست آوردن موقعیتهای کربن در یاخته واحد fcc در دمای اتاق، محاسبات خودسازگار را با استفاده از کد محاسباتی wien2k بر پایه نظریه تابعی چگالی و پتانسیل کامل با استفاده از روش امواج تخت بهبودیافته با اوربیتالهای موضعی برای الکترونهای ظرفیت و شبه مغزه (apw+lo) انجام داده ایم. برای واهلش اتمهای کربن در ساختار بلوری، محاسبه طول پیوندها، انرژی همدوسی حالت جامد fcc-c60 ، ...
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