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3D Continuum Model with a Displacement Boundary for Lining Analysis
国立大学法人長岡技術科学大学博士(工学)doctoral thesi
Failure Evolution of Advanced Gas Turbine Blade Material during Creep and Thermo-Mechanical Fatigue Loadings under a Significant Temperature Gradient Condition
国立大学法人長岡技術科学大学博士(工学)doctoral thesi
A study on noise reduction of non-separable wavelet transform with lifting structure
国立大学法人長岡技術科学大学博士(工学)doctoral thesi
REDUNDANCY AND PROGRESSIVE COLLAPSE ANALYSIS METHODS FOR STEEL TRUSS BRIDGES
国立大学法人長岡技術科学大学博士(工学)doctoral thesi
無次元 Richards 方程式の数値解に基づく土壌中水分再分布のモデル化
ArticleSoil moisture is one of the most important hydrological variables. Its redistribution has significant effects on evaporation, infiltration and groundwater recharge. Recently, its impacts on climate system are widely recognized. High non-linearity of Richards’ equation makes its practical applications very difficult. Many soil moisture accounting hydrological models or land surface schemes (LSSs) take soil moisture into account conceptually as an index of wetness. Even Richards’ equation based LSSs, used and evaluated in the global soil wetness project (GSWP) and/or the atmospheric model intercomparison project (AMIP), have only several thick soil layers. In order to develop a model to represent soil moisture redistribution in vertical direction for a better soil moisture accounting scheme, a high resolution numerical model solving dimensionless 1D Richards’ equation is developed and applied to 12 soils. By analyzing the soil moisture derived, two fomulae are proposed with parameters which can be estimated from a soil parameter. It is shown that these fomulae represented the behavior of soil water in soil column and at the surface fairly well.journal articl
Agarwood leaf methanolic extract as corrosion inhibitor of mild steel in HCl solution
国立大学法人長岡技術科学大学博士(工学)doctoral thesi
Integration of renewable energy sources in microgrids: Sizing and intelligent management
国立大学法人長岡技術科学大学博士(工学)doctoral thesi