نتایج جستجو برای: when temperature rises to 1620c

تعداد نتایج: 10829000  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1391

reinsurance is widely recognized as an important instrument in the capital management of an insurance company as well as its risk management tool. this thesis is intended to determine premium rates for different types of reinsurance policies. also, given the fact that the reinsurance coverage of every company depends upon its reserves, so different types of reserves and the method of their calc...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2015
luo zuo

in the paper we developed a new method to determine the absolute amount of adsorption. this method relies on the excess adsorption isotherm and the density profile in the pore of one material. to compute the density profile and decrease complex calculation of obtaining the absolute amount of adsorption we introduced simplified local-density (sld) model. a few of appropriate parameters were acqu...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - دانشکده زبانهای خارجی 1389

abstract this study examines the effect of teaching lexical inferencing strategies on developing reading comprehension skill of iranian advanced efl learners. participants were female students of meraj and shokouh institudes of garmsar a quasi-experimental design using two intact advanced classes of efl students at meraj and shokouh institutes. as the first step, a general toefl proficiency te...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پایه 1391

bekenstein and hawking by introducing temperature and every black hole has entropy and using the first law of thermodynamic for black holes showed that this entropy changes with the event horizon surface. bekenstein and hawking entropy equation is valid for the black holes obeying einstein general relativity theory. however, from one side einstein relativity in some cases fails to explain expe...

Journal: :Circulation. Arrhythmia and electrophysiology 2014
W Kevin Tsai Jacob Koruth Vivek Y Reddy

A 36-year-old man with a history of cardiac arrest status post dual-chamber implantable cardioverter-defibrillator underwent pulmonary vein (PV) isolation for paroxysmal atrial fibril-lation (AF). During the first procedure, esophageal temperature rises (≥38.5ºC) were noted during posterior left atrial radiofre-quency ablation (red dots; Figure 1A), but PV isolation was eventually achieved. How...

A. Montaseri M. Mokhtari-Dizaji M. R. Alinaghizadeh Sh. Akhlaghpour

Introduction: one of the minimally invasive methods of treatmenting liver malignancies is Radiofrequency Ablation (RFA) which can be applied to primary or secondary tumors. Nevertheless, the disease recurrence is probable after RFA application partially due to the inadequate capability of temperature monitoring of the target tissue and visualizing the thermal damage. The goal of this work was t...

2012
Leann Buhrow Shelagh Ferguson-Miller Leslie A. Kuhn

ProFlex calculates a hydrogen-bond dilution profile (1). To calculate the profile, the protein’s hydrogen bonds are broken one by one, from weakest to strongest (according to the potential energy formula described below), and the constraint counting algorithm is run after each bond is broken. This simulates incremental thermal denaturation of the structure, as the calculated temperature rises a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده مهندسی صنایع 1387

according to webster and wind (1972) and anderson et al (1987), “organizational buying is a complex process and involves many people from different functional areas, multiple goals and potentially conflicting decision criteria. moreover, the customers of today are also more knowledgeable and selective when making their purchasing decisions. since a key to organizational survival is the retentio...

Journal: :Physics in medicine and biology 1988
J A Scott

Long-term industrial exposure to low levels of infrared radiation has for many years been associated with the development of cataracts; the injury mechanism is widely held to be thermal. A finite element model of the human eye is employed to calculate the temperature rises experienced by the intraocular media when exposed to infrared radiation. The model is used to calculate transient and stead...

Journal: :The Journal of Experimental Medicine 1954
Eugene L. Opie

Depression of the melting point of liver tissue rapidly frozen by liquid nitrogen during life provides a means by which the molecular concentration within liver cells may be compared with that of solutions of sodium chloride or of blood or of blood serum. The rising temperature of frozen blood of guinea pig under the conditions of these experiments is retarded when melting occurs, pursues when ...

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