In this paper a new blind deconvolution algorithm as modzjkation of the Bellini ‘s ‘Bussgang ’ is presented. Firstly, a novel version based on stochastic Gradient Steepest Descent error minimization technique isproposed. Then the Bayesian estimator used by Bellini is approximated with a flexible Sigmoid’ parameterized with adjustable amplitude and slope, and a gradient-based technique is propos...

In agricultural landscapes, factors affecting V under steady-state conditions of infiltration are well docuVarious interactions, particularly those existing between the rainmented (Kinnell, 2000). The effect of slope angle on fall intensity, the slope gradient, the slope length, and the tillage runoff for interrill erosion has also been fully investisupposedly can affect the runoff features for...

The horizontal wavenumber spectra of wind and temperature near the tropopause have a steep 23 slope at synoptic scales and a shallower 25/3 slope at mesoscales, with a transition between the two regimes at a wavelength of about 450 km. Here it is demonstrated that a quasigeostrophic model driven by baroclinic instability exhibits such a transition near its upper boundary (analogous to the tropo...

The Eady problem of baroclinic instability as applicable to quasigeostrophic oceanic flows with zero internal PV gradients is revisited by introducing a mild slope and Ekman pumping on the lower boundary. The solution behaviour is determined by the isopycnal slope relative to either the bottom slope or the ratio of Ekman depth to horizontal wavenumber. Attention is paid to the physical interpre...

An optimization strategy for ternary solvent-strength gradient elution RP chromatography is described in which a two-dimensional model of gradient time (2 levels) against ternary proportions of organic modifiers (4 levels) was constructed. From the resolution surface the optimum ratio of organic modifiers could be selected. Excellent retention time and acceptable peak width and resolution simul...

A basic tenet of principles of associative learning applicable to models of spatial learning is that a cue should be assigned greater weight if it is a better predictor of the goal location. Pigeons were trained to locate a goal in an acute corner of an isosceles trapezoid arena, presented on a slanted floor with 3 (Experiment 1) or 2 (Experiment 2) orientations. The goal could be consistently ...

the production of shear flow profile in a wind tunnel test-section with the aid of in-plain horizontal wire-grids is explained. the design procedure with experimental results are given. it is concluded that the deepest shear, produced by this procedure, cannot have a slope of more than 1.777. it is shown that the stagnation streamlines in a shear flow will be displaced due to the existence of s...

Counter tillage is a typical cultivation practice on the Loess Plateau, which can influence soil erosion process by intercepting runoff and increasing infiltration. However, few studies have investigated mechanisms of nutrient losses associated with counter tillage. This study was conducted to reveal effects slope gradient loss mechanism sloping farmland. In this study, rainfall simulation inte...