نتایج جستجو برای: layer lower
تعداد نتایج: 953558 فیلتر نتایج به سال:
The water-rich mantle transition zone and dry lower suggest that a dehydration melting layer can form at the 660-km depth boundary. However, water content of (), which dominates its gravitational stability melt fraction, remains poorly constrained. Here, hydrous silicate by mass balance calculations is investigated found significantly decreases with increasing temperature, but relatively insens...
The relatively low power conversion efficiency (PCE) of quantum dot sensitized solar cells (QDSSCs) is attributed to charge recombination at the interfaces. Charge recombination process could be suppressed by coating the QD layer with a wide band gap semiconductor such as ZnS, which acts as a blocking layer between the QDs and hole transport material (HTM). In present study, to improve PCE of P...
به منظور مطالعه بیواستراتیگرافی و پالئواکولوژی رسوبات دونین پسین، برشی در استان کرمان انتخاب گردید، که از لحاظ موقعیت زمین شناسی در ناحیه ایران مرکزی قرار دارد. برش باغین در شمال شرق باغین و 20 کیلومتری غرب کرمان واقع شده است. قدیمی ترین واحد دونین در این منطقه، سازند پادهاست که شامل ماسه سنگ های سفید و قرمز می باشد، این سازند به وسیله واحد هایی از دونین که معادل سازند بهرام می باشد، پوشیده می...
Background and purpose: Cardiovascular diseases is the leading cause of death in the world. Over the last decades, open heart surgery reduced the mortality rate of these patients. The long saphenous vein is most commonly-used conduit in coronary artery bypass surgery. Complications associated with its harvest can lead to significant patient morbidity. We aimed to determine the optimal method...
roadmap is a strategic plan that describes the steps an organization needs to take to achieve stated outcomes and goals in different layers and these layers are closely related to each other. lower layer are more important in planning processes. acquisition layer is one of the most crucial layers in road mapping process. today there are some international organizations that do policy making and...
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