نتایج جستجو برای: volume and flood base time

تعداد نتایج: 17072030  

جانی زاده, سعید, وفاخواه, مهدی,

     Prediction of flood peak discharge and runoff volume is one of the major challenges in the management of watersheds. The present study was carried out to estimate event flood peak discharge and runoff volume using artificial neural network (ANN) and adaptive neuro-fuzzy inference system (ANFIS) in Kasilian watershed, Iran. For this purpose, 15 rainfall characteristics were considered for 6...

      Flood as a rapid and destructive event causes great human and economic losses in Iran and around the world, annually. This study aimed to assess the temporal trend and spatial changes of flood coefficient of Ardabil Province rivers using daily discharge of 22 hydrometric stations over a 22-year (1991 to 2011) of recorded data. The flood coefficient amount was calculated after subtracting ...

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

target tracking is the tracking of an object in an image sequence. target tracking in image sequence consists of two different parts: 1- moving target detection 2- tracking of moving target. in some of the tracking algorithms these two parts are combined as a single algorithm. the main goal in this thesis is to provide a new framework for effective tracking of different kinds of moving target...

Journal: :محیط شناسی 0
میر امید هادیانی مربی گروه محیط زیست، دانشکده منابع طبیعی، دانشگاه آزاد اسلامی، واحد قائم شهر وحید غلامی دانشجوی دکتری آبخیزداری از دانشگاه آزاد اسلامی تهران, واحد علوم و تحقیقات زهرا نژادآذر عضو باشگاه پژوهشگران جوان دانشگاه آزاد اسلامی واحد قائم شهر

there are different methods for controling the flood damages which one of them is flood zoning. in this method, flood zones are determined by simulating river hydraulic behavior and its flood plain for different return periods.in other hand, soil and specially plant coverage are the most effective factor to determine manning roughness coefficient. so it is expected, seasonal plant coverage chan...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده ادبیات و علوم انسانی 1389

abstract abstract of thesis (includes summary, goals, execution methods, and results) story “al-obnosat al-bayza” is one of the short stories from “hanna mineh” collection. this story is a selection of lives of some humans during a voyage together, each of them is a symbol of human nature (love, mind, kindness) and examine social, cultural, and political aspects of governing system, and it...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان همدان - دانشکده ادبیات و علوم انسانی 1390

the present research has been deducted from a provincial research project which aims at determining the relationship of variables of variables of occupational self-concept, intelligence beliefs and metacognitive with entrepreneurship among the students of payame noor university of kurdistan. the volume of the samples was 1080 students (576 female and 504 male students). the research methodology...

Journal: :اکو هیدرولوژی 0
حمید نوری . استادیار، گروه منابع طبیعی، دانشگاه ملایر، ایران علی رضا ایلدرومی دانشیار، گروه منابع طبیعی، دانشگاه ملایر، ایران مهدی سپهری مربی، گروه منابع طبیعی، دانشگاه ملایر، ایران نبی الله سپهری مربی، گروه آبیاری و زهکشی، دانشگاه بوعلی سینا، ایران محمد مهدی آرتیمانی مربی، گروه منابع طبیعی، دانشگاه لرستان، ایران

the flood is one of the natural disasters that doesnt create itself but the landuse change will be caused it that makes a lot of human and financial losses every year. in this study in gonbad chi basin to assess the impact of watershed mechanical operation on flood mapping used fuzzy method and ahp method and composition of slope mapping, landuse, permeability and flow accumulation that called ...

ذو نعمت کرمانی, محمد, گنجعلیخانی, معین,

     In many floods controlling, watershed-management and water-resources projects, estimating of river flow-rate is important and needs a comprehensive hydrological modeling of flow-rate evaluation. Need for enlightening the status of water-resources and precipitation in different watersheds and the lack of networks of hydro-meteorological gauging stations, reveal the importance of estimating ...

زکی زاده, فریبا , طالبی, علی,

In Nash's cascade model that is simple and efficient model for simulating hydrological response in watersheds, catchment behavior is considered same as n linear reservoirs with k storage coefficient. In this context, the accuracy of different methods of estimating the Nash model parameters (n and k) including moment, experimental Nash formula, Han’s graphical, time to peak-time to inflection po...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده علوم اجتماعی 1389

the study aims to achieve research and testing of hypotheses survey techniques and questionnaires to collect information used. 61 questions in the questionnaire included 15 questions and 46 open questions according to research in the study population, girls and their mothers as the value of different children investment should be. mothers according to the research community benefits from havi...

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