نتایج جستجو برای: water level

تعداد نتایج: 1582970  

رائینی سرجاز, محمود, شفیعی, مریم,

In recent years due to increase of drought frequency, lakes water levels, in arid and semi-arid regions of the Iran, have dropped significantly. Therefore, in addition to ecosystem degradations, drought challenges socio-economic sectors as well. The purpose of this study was to evaluate the water level fluctuations of Parishan Lake during the wet and dry periods, and the impact of drought indic...

Journal: :بوم شناسی کشاورزی 0
حمیدرضا سالمی علیرضا توکلی نادر حیدری

to illustrate the impact of various levels of deficit irrigation on yield and yield components of maize cultivars, a study was conducted based on randomized complete blocks as a split plot design with 3 replicates and two treatments for three crop seasons. four levels of deficit irrigation including: conventional, 100, 80, and 60% of water level use were considered as main plots and two varieti...

حنفی, بهروز, یوسفی, ذبیح اله,

Background and purpose: Fluoride is one of current anions in water and soil, but its level varies in different water supplies. Most of the body's requirement for fluoride is supplied through drinking water, therefore, water utility authorities and monitoring organizations should closely control the level of fluoride in drinking water. The aim of this study was to measure the level of fluoride i...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1381

در این تحقیق اثر ریتانسرین ( آنتاگونیست گیرنده سروتونینی ‏‎5-ht2‎‏) بر فراموشی ناشی از اسکوپولامین (آنتاگونیست گیرنده موسکارینی کولینرژیک ) در ماز آبی موریس ‏‎morris water maze,mwm)‎‏ ) بررسی گردید .

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