nowadays protecting land cover, quality and quantity of water resources are important. surface runoff is one of most important reasons of soil erosion which causes sediment in reservoirs and reduction of land’s fertility and also quality reduction water of rivers. so the main issue is exact prediction of basin runoff to raining events. the hydrologic models are simplified models of real hydrolo...

In this paper, the varying-coefficient single-indexmodel (VCSIM) is proposed. It can be seen as a generalization of the semivaryingcoefficient model by changing its constant coefficient part to a nonparametric component, or a generalization of the partially linear single-indexmodel by replacing the constant coefficients of its linear part with varying coefficients. Based on the local linear met...

We discuss the role of so-called “intrinsic-charm” operators in semi-leptonic B-meson decays, which appear first at order 1/mb in the heavy quark expansion. We show by explicit calculation that – at scales μ ≤ mc – the contributions from “intrinsiccharm” effects can be absorbed into short-distance coefficient functions multiplying, for instance, the Darwin term. Then, the only remnant of “intri...

This study examined the factorial validity of the Maslach Burnout Inventory General Survey (MBI-GS; Schaufeli et al., 1996) in eight different occupational groups of employees (N = 2919), who were recruited through the Internet. Results of multi-group confirmatory factor analyses favored the proposed Three-Factor Model over alternative Two-Factor and One-Factor Models. Exhaustion, cynicism, and...

In this paper, we study the Igusa’s local zeta functions of a class of hybrid polynomials with coefficients in a non-archimedean local field of positive characteristic. Such class of hybrid polynomial was first introduced by Hauser in 2003 to study the resolution of singularities in positive characteristic. We prove the rationality of these local zeta functions and describe explicitly their pol...

the steger and warming flux vector splitting implicit scheme is used to numerically solve two dimensional reynolds averaged navier–stokes (rans) equations governing the vortex induced vibration of a flexible riser laterally supported by a spring and a damper. the k–ε model is used as turbulence model to simulate the turbulent flow in the wake of the riser. to update the new position of the rise...

in this study, the incomplete gamma function, an exponential function, a mixed-log function and a polynomial function were evaluated to describe the lactation curve in moroccan holstein-friesian dairy cows. data from 1990 to 1999, comprising 77130 monthly milk yields of 6029 dairy cows in 280 dairy herds, were used. edits were carried out by considering the lactation length (5 d and