نتایج جستجو برای: respectively multiple regression models while using usft

تعداد نتایج: 5483847  

ژورنال: علوم آب و خاک 2006
شمس الله ایوبی, , محسن حسین علیزاده, ,

Conventional soil survey methods for soils within the watersheds in Iran require a significant budget with many soil surveyors and much time. Additionally, no accurate and reliable information exists on the spatial variability of superface soil parameters in order to predict the soil loss by different models (RUSLE, PISAC, EUPOSEM, MORGAN). Also information on planning and management activities...

شمس الله ایوبی, , محسن حسین علیزاده, ,

Conventional soil survey methods for soils within the watersheds in Iran require a significant budget with many soil surveyors and much time. Additionally, no accurate and reliable information exists on the spatial variability of superface soil parameters in order to predict the soil loss by different models (RUSLE, PISAC, EUPOSEM, MORGAN). Also information on planning and management activities...

Journal: :تحقیقات آب و خاک ایران 0
نوذر قهرمان دانشیار گروه مهندسی آبیاری و آبادانی دانشگاه تهران، کرج پرویز ایران نژاد دانشیار گروه فیزیک فضای مؤسسة ژئوفیزیک دانشگاه تهران رضا نوروز ولاشدی کارشناس ارشد هواشناسی کشاورزی دانشگاه تهران

because of the scarcity of in situ measurements, estimation of soil temperature by other means is very indispensable, as for irrigation management and scheduling when in different field conditions. so far, many regression models have been developed for an estimation of soil temperature, using meteorological data under bare soil. throughout this study, the performance of coup simulation model an...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
(pages 1-14) s. h. hosseiniparvar j. keramat m. kadivar e. khanipour e. milani

gelatin is a protein hydrocolloid. because of its unique characteristics such as gel forming, thickening, stabilizing, emulsifiing, foam and film forming, is widely used in food industries. in this research, in order to optimize the factors which affect enzymatic extraction method of gelatin ,the effects of three variables, enzyme concentrations(2-10 ppm), time(8-16 hours) and temperature(60-80...

Journal: :Global Journal of Mathematical Sciences 2004

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