نتایج جستجو برای: infiltration process

تعداد نتایج: 1358658  

A process is described which involves infiltration of aluminum nitrate into partially sintered (porous) zircon bodies. Infiltration kinetics were studied using infiltration curves with two distinct regions. The final infiltrated samples were sintered at 1600 °C for 2 h and yielded specimens containing the tetragonal zirconia.The experimental results show that in spite of the similar porosity of...

Journal: :PROCEEDINGS OF HYDRAULIC ENGINEERING 1995

Journal: :Transactions of the Japan Institute of Metals 1980

Journal: :تحقیقات آب و خاک ایران 0
غزاله ضیایی کارشناس ارشد آبیاری و زهکشی فریبرز عباسی موسسه تحقیقات فنی و مهندسی کشاورزی حسین بابازاده دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران فریدون کاوه دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران

recognition of soil water infiltration process is essential for improving irrigation efficiency, decreasing water losses and management of surface runoff. the aim of this research was to evaluate temporal variation of the kostiakove-louise infiltration coefficient parameters during a corn growing season. in this research, 16 irrigation events for 8 large scale furrow experiments were analyzed b...

Journal: :آب و خاک 0
علی جوادی محمود مشعل حامد ابراهیمیان

infiltration is a complex process that changed by initial moisture and water head on the soil surface. the main objective of this study was to estimate the coefficients of infiltration equations, kostiakov-lewis, philip and horton, and evaluate the sensitivity of these equations and their coefficients under various initial conditions (initial moisture soil) and boundary (water head on soil surf...

Journal: :PROCEEDINGS OF THE JAPANESE CONFERENCE ON HYDRAULICS 1988

Journal: :JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 2006

ژورنال: علوم آب و خاک 2015
برومندنسب, سعید, بهزاد, مجید, شینی دشتگل, علی, قهرمان‌نژاد, مصطفی, ناصری, عبدعلی,

Infiltration is the most crucial process affecting surface irrigation uniformity and efficiency as it is the mechanism that transfers and distributes water from the surface to the soil profile. As a direct method of infiltration measurement, the volume balance method requires time, accuracy and high costs. Moreover, before the land preparation and at the research phase the use of this method is...

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