soil water potential was determined for three soil samples (i.e. 0-30, 30-60 and 60-90 cm depth) by the filter paper method (hamblin, 1981) and also for four non-destructive soil samples (i.e. 0-30, 30-50, 50-75 and 75-90 cm horizon) using pressure plate method.  in filter paper method, the filter paper is placed in hydraulic contact with the soil until an equilibrium state is attained in which...

The time taken to exchange a cutting tool and the actual machining are components in total production cycle for part, that affects productivity. Automated plate systems strive simplest possible principles achieve shortest with sufficient accuracy. holder presented article is based on principle of combination translational, rotational movement, stop surfaces by using single pull–push rod simple ...

Copper and cobalt demand is projected to be increased from here 2050 the challenge find treat economically minerals which contains those metals. Several tailings oxide ores throughout word contain good grades of copper that should recovered by froth flotation. This paper investigates recovery through reprocessing spiral classifier determination specific reagents dosage. The flotation behaviours...

In this paper, a new voltage controlled first order all-pass filter is presented. The proposed circuit employs a single differential voltage dual-X second generation current conveyor (DV-DXCCII) and a grounded capacitor only. The proposed all-pass filter provides both inverting and non inverting voltage-mode outputs from the same configuration simultaneously without any matching condition. Non-...

Filter is one of the main components of embankment dams. By a simple but effective performance, filter protects the dam against erosion and soil scouring in impervious core caused by leakage (piping) and makes it safe. Interaction between filter and erodible base soil is a complex phenomenon which is dependent upon several factors, and has challenged researchers for better understanding the fil...

Abstract Grinding is mostly considered as a finishing operation by which high surface quality achieved. An increase in productivity therefore limited maintained properties such the roughness or tensile residual stresses. Thus, roughing inevitable followed operation, while both operations are separated, leading to larger cycle times and process costs. In this paper, novel combination investigate...

in the several past years, extended kalman filter (ekf) and unscented kalman filter (ukf) havebecame basic algorithm for state-variables and parameters estimation of discrete nonlinear systems.the ukf has consistently outperformed for estimation. sometimes least estimation error doesn't yieldwith ukf for the most nonlinear systems. in this paper, we use a new approach for a two variablesta...