نتایج جستجو برای: west of iran in all flow patterns at 500 hpa

تعداد نتایج: 24617974  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1390

this study investigated the functions, types and frequencies of code switching in the teachers and students discourse in elt classrooms. to this end, the participants of this study including two groups of teachers and students were selected. the first group of participants were two efl teachers teaching general english courses (at two different levels of proficiency) in an institutional program...

Journal: :فیزیک زمین و فضا 0
j masoompour samakosh climatology, department of geography, faculty of humanities, razi university, kermanshah, iran m soltani climatology, department of physical geography, faculty of geography, university of tehran, iran a hanafi climatology, university of isfahan, iran gh azizi climatology, department of physical geography, faculty of geography, university of tehran, iran e mirzaei institute of geophysics, university of tehran, iran a ranjbar saadatabadi atmospheric sciences and meteorological research center (asmerc) of i. r. of iran meteorological organization (irimo), tehran, iran y yousefi

heavy precipitation plays a significant role in arid and semi-arid regions of iran. in order to understand the effect of blocking high system on rainfalls in northwest iran during 25 - 28 october 2008, meteorological conditions including pressure, wind fields and temperature at multiple levels of the atmosphere were analyzed. sea level pressure, the 1000-500 hpa thickness, perceptible water, re...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی 1392

the purpose of this quantitative study was to investigate the relation between efl teachers’ self-efficacy beliefs and their success. moreover, the study was an analysis of the teacher age, gender and years of teaching experience, to examine the manner in which these factors relate to teacher self-efficacy as defined by bandura (1997) and teaching effectiveness as evaluated by their own student...

سلیقه, محمد , علیجانی, بهلول , مصطفائی, حسن ,

Heavy and torrential rains are one of the hazardous phenomena of atmosphere which always cause several severe damages over Iran. For this reason in every developmental program their intensity and frequency should be understood and predicted. The main factor to their development and intensification are the atmospheric pressure patterns and motions. Therefore, in order to predict their occurrence...

Introduction   Variability is one of inherent properties of the climate system. In addition to the dynamic nature, the climate system is extremely intertwined nature also, so that its components interact with each other and eventually they are changing each other. In general, the climate of a geographic location is controlled by various factors, including Atmospheric Action Centers (AAC...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زبانهای خارجی 1392

to teach english adequately, qualified teachers are needed. unfortunately, there are still teachers who are teaching english without an academic degree in tefl. it is necessary for teachers to have a major in english to have subject knowledge, but it is not sufficient. teachers need to have an understanding of the social, cultural, moral, ethical, and pedagogical issues of education and practic...

پایان نامه :0 1374

the following null hypothesis was proposed: h : there is no significant difference between the use of semantically or communicatively translates scientific texts. to test the null hypothesis, a number of procedures were taken first, two passages were selected form soyrcebooks of food and nutrition industry and gardening deciplines. each, in turn, was following by a number of comprehension quest...

Journal: :پژوهش های جغرافیای طبیعی 0
حسن لشکری دانشیار گروه جغرافیا، دانشگاه شهید بهشتی تهران زینب محمدی دانشجوی دکتری اقلیم شناسی سینوپتیک، دانشگاه شهید بهشتی تهران

introduction subtropical high pressure is one of the main elements of the general circulation of the atmosphere. annual motion of the circulation plays an important role in movement path of pressure systems and westerlies. hence, large parts of the planet are affected directly and indirectly by this system. sometimes the high pressure called the subtropical high pressure belt. it’s shown as sev...

Journal: :پژوهش های جغرافیای طبیعی 0
بهلول علیجانی استاد گروه جغرافیا، دانشگاه تربیت معلم محمود هوشیار دانشجوی کارشناسی ارشد اقلیم شناسی و برنامه ریزی محیطی - دانشگاه تربیت معلم

in order to identify the pressure patterns causing the cold weather over the northwestern iran, daily lowest temperatures of six stations of the study area during january- march months of the 1986-2003 period were obtained from meteorological organization of islamic republic of iran (irimo) in the quality controlled format. according to the defined threshold, the very cold days were extracted a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده مدیریت و اقتصاد 1391

abstract nowadays, industries cannot play a crucial role in national and international competitions. the tourism industry is no exception. tourism industry development as the most important economic sector and income generation is one of the key challenges of economic development in the world. therefore, countries were successful that take advantage of the capabilities of tourism sector using ...

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