نتایج جستجو برای: the reconnaissance drought index in 6

تعداد نتایج: 21360044  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده پزشکی 1390

nitric oxide (no) is a small molecule synthesized by most of mammalian cells with diverse biological activities including vasodilatation, host defense and wound healing. impaired wound healing is a common occurrence among diabetics and patients receiving glucocorticoid therapy. on the other hand the application of laser in biomedical area have been increased. thus, the current studies were desi...

Journal: :مرتع و آبخیزداری 0
محمد قبایی سوق دانشجوی دکتری مهندسی منابع آب، دانشگاه ابوعلی سینا، همدان ابوالفضل مساعدی استاد دانشکده منابع طبیعی و محیط زیست دانشگاه فردوسی مشهد

reconnaissance drought index (rdi) is based on fitting a log-normal distribution to the ratio of precipitation to evapotranspiration (eto) values in selected periods. in this index value of eto were calculated based on mean temperature by thorenth-waite (th) method. th method, may underestimated eto values comparing to the actual in arid and semi arid regions. the log-normal distribution may no...

Journal: :AL Rafdain Engineering Journal 2022

The study of drought and its forecasting plays an important role in planning managing water resource systems, especially extreme climatic periods. This aims to analyze forecast characteristics, through the use Reconnaissance Drought Index (RDI) order temporal spatiotemporal nine climate stations Kurdistan Region Iraq for period (1973-2020) detect beginning end period, as well future droughts us...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی 1393

this exploratory study aimed to investigate a possible relationship between learners’ beliefs about language learning and one of their personality traits; that is,locus of control (loc). both variables, beliefs and locus of control, are assumed to influence the language learning process. the internal control index (ici) and the beliefs about language learning inventory (balli) were administered...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده علوم تربیتی و روانشناسی 1393

the purpose of this study was to investigate the relationship between teachers’ class management practices with students’ self- regulated learning and academic self-efficacy. in this study relating to the management class, three dimensions, (training management, people management and behavior management) and three style (interventionist, interactionist and non-interventionist) was considered. r...

Journal: :تحقیقات جغرافیایی 0
اکبر گل دوست دانشگاه محقق اردبیلی بهروز سبحانی دانشگاه محقق اردبیلی

drought affects on all aspects of human actirities seriously as a climatic phenomenon. however, the studies related to this phenomenon based on suitable method are very few. studying the drought features and its prediction can be effective on decreasing of resulted losses or damages. therefore, drought and evaluation of its prediction possibility are studied for some stations of ardabil provinc...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی مشهد - دانشکده دندانپزشکی 1390

objective: the objective of this study was to investigate the invitro fluoride release of four new self-adhesive resin cements; set (sdi, australia), breeze (pentron, usa), embrace wetbond (pulpdent, usa), g-cem (gc, japan) and to assess the bonding performance of these self-adhesive resin cements for bonding of orthodontic brackets. materials and methods: for fluoride release experiment, six ...

Journal: :فیزیک زمین و فضا 0
مهدی قمقامی دانشجوی دکترای هواشناسی کشاورزی، دانشگاه تهران، ایران نوذر قهرمان دانشیار، گروه مهندسی آبیاری و آبادانی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، ایران سمیه حجابی دانشجوی دکترای هواشناسی کشاورزی، دانشگاه تهران، ایران

climate change that the human faces is a somewhat unavoidable phenomenon. successful management of water resources needs recognition and perception of climate change in order to cope with water scarcity. the water scarcity is created by natural forcings such as drought, which is affected by regional climate. in other words, variation of climate variables as a result of climate change leads to v...

Journal: :اکو هیدرولوژی 0
عباس علیپور استادیار جغرافیای سیاسی دانشگاه امام حسین (ع)، تهران مصطفی هاشمی دانشجوی دکتری جغرافیای سیاسی دانشگاه آزاد علوم تحقیقات تهران سید اسعد حسینی دکتری اقلیم شناسی دانشگاه محقق اردبیلی فرشاد پژوه دانشجوی دکتری اقلیم شناسی دانشگاه خوارزمی تهران

the aim of this research is to analyze the performance of 8 drought’s index in isfahan, kerman and yazd province and choose the best index. for this purpose, used monthly and yearly rainfall data in the period of 30 years (1985-2014) and also used 8 drought indexes in 20 meteorological stations of central iran which the accuracy of each index in determining drought is examined. also zoning in a...

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