نتایج جستجو برای: climatological and hydrological studies

تعداد نتایج: 16961257  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1390

insurers have in the past few decades faced longevity risks - the risk that annuitants survive more than expected - and therefore need a new approach to manage this new risk. in this dissertation we survey methods that hedge longevity risks. these methods use securitization to manage risk, so using modern financial and insurance pricing models, especially wang transform and actuarial concepts, ...

2008
S. Hanisch P. Krause

Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Papers published in Hydrology and Earth System Sciences Discussions are under open-access review for the journal Hydrology and Earth System Sciences Abstract Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Abstract The impact of predicted climate change on the hydrolog...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1390

building on previous studies on the effectiveness of different types of written corrective feedback, the present study aimed at investigating whether direct focused corrective feedback and direct unfocused corrective feedback produced any differential effects on the accurate use of english articles by efl learners across two different proficiency levels (low and high). in current study, the par...

2012
L. Longuevergne L. Oudin N. Florsch

New inclinometers devoted to hydrological studies were set up in the Vosges Mountains (France). Two orthogonal 100-meter base hydrostatic inclinometers were installed in December 2004 as well as a hydrometeorological monitoring system for the 100-km2 hydrological unit around the inclinometer. As inclinometers are very sensitive to environmental influences, this observatory is a test site to con...

Journal: :مرتع و آبخیزداری 0
کاظم نصرتی استادیار دانشکده علوم زمین، دانشگاه شهید بهشتی، ایران

the term hydrological drought is applied to represent low water levels in streams, reservoirs and lakes as well as a low groundwater level. base flow index (bfi) as one of low flow indices gives the ratio of base flow to total flow and investigates basin’s ability to store and release of water in drought periods. the objectives of this study were to determine bfi and to validate this index in d...

2007
BURAS T. HERMAN

The current practices used in tube drainage design often lead to unsatisfactory results : from the point of view of the system's hydraulic performance, or from the point of view of high cost of the system in relation to the actual economic benefits derived from it. It is proposed therefore, that the design of tube drainage systems should be based on a synthesis of experimental field results, an...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده ادبیات و علوم انسانی 1390

abstract: advertisements are the most accessible type of authentic materials, and this is one reason why they are used more and more in english teaching classes. for this cause, studies in the field of advertisements are very widespread nowadays. for pun is one aspect which makes advertisements more interesting, it is used more than before in advertisements. use of puns makes an advertisement m...

2010
ulrika Willén

AMerIcAN MeteOrOLOGIcAL SOcIetY | 1357 AffiliAtions: Hazeleger, SeverijnS, Wang, Bintanja, van den Hurk, van noije, Selten, and Sterl—Royal Netherlands Meteorological Institute, De Bilt, The Netherlands; Semmler and mcgratH—Met Éireann, Dublin, Ireland; Ştefănescu—European Centre for Medium-Range Weather Forecasts, Reading, United Kingdom; Yang, cHriStenSen, and ScHmitH—Danish Meteorological In...

فرهود , داریوش , پورجعفری , حمید ,

In present investigation, aging coefficient (A.C.) was stidied and compared in some different provinces of Iran, according to their most important geographical conditions such as altitude. Study of climatological profile of North-West to South-East of Iran shows gradual decrease of altitude as well as climatological profile of the west to the east of Iran. Results show that A.C increase gra...

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