Sum rules based upon heavy quark effective theory indicate that the IsgurWise function ξ(w) has a minimum slope ρmin as w → 1, where ρmin = 0 for light degrees of freedom with zero spin and ρmin = 1 4 for light spin 1 2 . Quark-model studies reveal sources for a minimum slope from a variety of relativistic effects. In this paper the origins of the minimum slope in the sumrule and quark-model ap...

A natural slope undergoing recurrent movements caused by rainfall-induced groundwater table rises is studied using a novel method. The strength and displacement parameters are back-calculated force-equilibrium-based finite method (FFDM) based on the first event of movement recorded in monitoring period. Slope displacements response to subsequent predicted FFDM material parameters. Important fac...

The reservoir water level fluctuation is an important factor inducing the reaction of pore-water pressure, seepage and at last resulting in instability failure slope. A typical homogeneous slope conducted as example this paper, stress coupling effect considered, stability calculation analysis are carried out by using finite element method. results demonstrate that safety increases with rises, t...

land cover map is important for many urban planning and management activities. in this study, in order to produce land cover map of arak city, digital image of liss-iii scanner acquired on 16 june 2006 were employed. first of all, geometric correction with rmse 0.58 pixel was applied. considering the mountainous condition of the study area, topographic correction was applied to the image. in su...