نتایج جستجو برای: low density of meteorological stations

تعداد نتایج: 21273883  

Journal: :Monthly Weather Review 1915

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده کشاورزی 1389

abstract: since sugar consumption is directly related to diabetes and other illnesses such as obesity, the issue that will most heavily dominate the health food market is blood sugar management and low glycemic foods. using calcium chloride and gums such as sodium alginate and low ester pectin as thikener and a high-potency sweetener aspartame we were able to reduce sugar content of sour cherry...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1392

gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...

Journal: :مهندسی بیوسیستم ایران 0
پریا سفیدپری دانشجوی دکتری مهندسی مکانیزاسیون کشاورزی، گروه مهندسی ماشین های کشاورزی، دانشکده مهندسی و فناوری کشاورزی، دانشگاه تهران علیرضا کیهانی استاد گروه مهندسی ماشین های کشاورزی، دانشکده مهندسی و فناوری کشاورزی، دانشگاه تهران سید حسن پیشگر کومله دانشجوی دکتری مهندسی مکانیزاسیون کشاورزی، گروه مهندسی ماشین های کشاورزی، دانشکده مهندسی و فناوری کشاورزی، دانشگاه تهران مجید خانعلی استادیار گروه مهندسی ماشین های کشاورزی، دانشکده مهندسی و فناوری کشاورزی، دانشگاه تهران اسداله اکرم عضو هیأت علمی گروه مهندسی ماشین های کشاورزی دانشگاه تهران

wind speed is one of the characteristics of wind energy which its data is extracted from meteorological stations. in this study, the data obtained from the weather station in the city eqlid during a ten-year period has been used. weibull distribution was chosen as the best distribution function using fitting tests and estimation of some statistical parameters. the results showed that the averag...

سعیدی, داوود, عالم رجبی, علی اکبر , نعمت‌اللهی, امید,

The positive effects of renewable energies have forced many countries to draw attention to clean environmentally friendly energy sources such as wind. However, the first step for harnessing the wind energy is to locate regions with good potential for turbine installation. The use of wind energy to provide steady and reliable supply of electricity is on the increase. In this work, Weibull probab...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1391

simplification universal as a universal feature of translation means translated texts tend to use simpler language than original texts in the same language and it can be critically investigated through common concepts: type/token ratio, lexical density, and mean sentence length. although steps have been taken to test this hypothesis in various text types in different linguistic communities, in ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی و علوم دریایی 1388

this research was conducted in two protect and destroy region in the middle zagros, in illam province. in order to identification of ecological species group and evaluate density of regeneration, effect of many factors such as protection, vegetation, physiographic factors, physical and chemical properties of soil in study locations were studied. to achieve these purpose number of 54 plots using...

Journal: :پژوهش های جغرافیای طبیعی 0
محمد دارند استادیار گروه آب و هواشناسی، دانشکدة منابع طبیعی، دانشگاه کردستان سوما زندکریمی دانشجوی کارشناسی ارشد آب و هواشناسی، دانشکدة منابع طبیعی، دانشگاه کردستان

introduction precipitation is one of the most important meteorological variables in comparison with other climatic parameters. it varies extremely over time and space. the occurrence of this climate phenomenon requires specific circumstances in environment. its accurate measurement is important to a wide range of decision makers including hydrologists, agriculturalists, industrialists and etc. ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد 1388

there is less published research about how teachers in efl contexts respond to students who are relatively less mature and less competent l2 writers. while writing researchers have examined various issues concerning peer and teacher response in writing-oriented classes, little research has centered on the effect of collaborative tasks particularly dictogloss on writing skills. output collaborat...

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