نتایج جستجو برای: trans critical
تعداد نتایج: 542702 فیلتر نتایج به سال:
گردو درختی است گلدار از رده دولپی ها ، تیره توس ها که برگ آن خاصیت دارویی دارد. در این تحقیق برگ های درخت گردو با نام علمی juglans regia از منطقه بافت کرمان در ماههای اردیبهشت و تیر جمع آوری شد. نمونه های برگ پس از آماده سازی به روش تقطیر با آب با یک دستگاه کلونجر اسانس گیری شد و راندمان استخراج نمونه ها به ترتیب6/1% و 8/1%(w/w ) بدست آمد. اسانس ها با تکنیکgc/ms مورد تجزیه قرار گرفتند، در اسانس...
Introduction: The ability to perform a self-assessment as a critical competency of professionalism is considered essential for medical students at the Medical Education Accreditation Council. In this study, interns’ status of readiness to change was investigated in terms of self-assessment of clinical competency in Mashhad University of Medical Sciences using construct of the stages of change o...
IL-6 trans-signaling via the soluble IL-6 receptor (sIL-6R) plays a critical role in chronic inflammation and cancer. Soluble gp130 (sgp130) specifically inhibits IL-6 trans-signaling but was described to not interfere with classic signaling via the membrane-bound IL-6R. Physiological and most pathophysiological conditions are characterized by a molar excess of serum sIL-6R over IL-6 characteri...
In response to light stimulation Chlamydomonas reinhardtii changes the beating frequency, beating pattern, and beating synchrony of the trans and cis cilia to steer the freely-swimming cell relative to light sources. To understand the cell steering behavior the impulse responses of the beating frequency and stroke velocity of each cilium have been obtained with high temporal resolution on cells...
Abstract Industrial heat pumps, and specifically those using carbon dioxide (CO2) as a refrigerant, can play key role in the decarbonization of heating cooling sector, due to their low global warming potential, toxicity flammability. However, challenges arise when dealing with modeling optimization CO2 pumps under different operating conditions. We address this challenge by presenting tool pred...
Due to the steric effects imposed by bulky polymers, formation of catalytically competent enzyme and substrate conformations is critical in biodegradation plastics. In poly(ethylene terephthalate) (PET), backbone adopts different conformations, gauche trans, coexisting extents amorphous crystalline regions. However, which conformation susceptible extent conformational changes required for exped...
In the present work, the performances of improved two-stage multi inter-cooler trans- critical carbon dioxide (CO2) refrigeration cycles with ejector and internal heat exchanger have been examined. In the new improved cycles, an internal heat exchanger is append to the cycles. Also, second inter-cooler in improved cycles, cooled with the refrigeration of the cycle, so that in first c...
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