نتایج جستجو برای: soil condition

تعداد نتایج: 490986  

Naturally formation of soil deposits leads to anisotropy and heterogeneity in their properties. The aim of this study is modeling of soil having anisotropic and heterogeneous strength using finite difference method to estimate the effect of these on slope stability in undrained condition. In this study the soil cohesion is considered as an anisotropic and heterogeneous variable and assumed to h...

Journal: :International Journal for Research in Applied Science and Engineering Technology 2019

Journal: :International Journal of Chemical Studies 2020

Journal: : 2023

The objective of this work is to study the seasonal evolution soil salinity (Solonchak) in region Bas-Chéliff at scale three profiles. It therefore a question characterizing solution, defining distribution profiles salts soil, determining speed salinization and temporal between dry season wet season.‎ Data analysis revealed that all experienced during compared season. are characterized by predo...

Journal: :کشاورزی (منتشر نمی شود) 0
علی رحیمی خوب مربی گروه مهندسی آبیاری و زهکشی، پردیس ابوریحان، دانشگاه تهران جمال محمد ولی سامانی استادیار گروه مهندسی تاسیسات آبیاری، دانشکده کشاورزی، دانشگاه تربیت مدرس سید محمود رضا بهبهانی استادیار، گروه مهندسی آبیاری و زهکشی، پردیس ابوریحان، دانشگاه تهران

the determination of soil wetting front which caused by emitters is one of the important issues in designing trickle irrigation system. in this study, a mathematical model introduced in order to study the position of soil wetting front during irrigation by point emitters in homegenious soil in unsteady condition. the model solves governing differential equation of unsaturated flow in cylindrica...

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