نتایج جستجو برای: condition pwp
تعداد نتایج: 314963 فیلتر نتایج به سال:
The deterioration of soil physical properties had led to a decrease in soil–water availability facility agriculture. Thus, an experiment was set up with five treatments 0% (CK, No additives), 3% biochar (BA3, Mass ratio), earthworm manure (QA3), 5% (BA5), and (QA5) investigate the effects on hydraulic characteristics under greenhouse conditions. including bulk density (BD) total porosity (TP) w...
The so called ”Pierce-Birkhoff Conjecture” asserts that a continuous function h on Rn piecewise polynomial on a finite number of pieces may be written as finitely many Sup and Inf of polynomials. Up to now a positive answer is known for n ≤ 2. In this paper we show that for n = 3 such an Inf-Sup description may be obtained outside an arbitrarily small neighborhood of a finite fixed set of point...
OBJECTIVES We compared the hemodynamic effects of dobutamine and enoximone administration before and after long-term beta-blocker therapy with metoprolol or carvedilol in patients with chronic heart failure (HF). BACKGROUND Patients with HF on beta-blocker therapy may need hemodynamic support with inotropic agents, and the hemodynamic response may be influenced by both the inotropic agent and t...
In order to achieve a better software quality, it is an interesting aspect to verify the correctness of a program at the source code level with respect to a given specification. We are currently developing an interactive verification system called Jive [7] which operates on a Java subset using a Hoare-style programming logic. It is very tedious to verify each and every line of the code to be ex...
We propose a priority-pricing scheme for zonal access to the electric power grid that is uniform across all buses in a zone. The Independent System Operator (ISO) charges bulk power traders a per unit ex ante transmission access fee. The zonal access fee serves as an access insurance premium that entitles a bulk power trader to either physical injection of one unit of energy or a compensation p...
Abstract The stability of slopes is greatly influenced by seasonal variations in pore water pressures (pwp) induced rainfall infiltration and evapotranspiration processes. Despite that, the prediction hydrological effects long-stem planting often simplified or neglected because it challenging to address. Its computation requires a proper definition plant root uptake spatial distribution, which ...
Knowledge of spatial variation of soil properties is important in precision farming and environmental modelling. Spatial distribution of water content at field capacity (FC) and permanent wilting point (PWP) at different zones of a farm governs the available water for plant growth. These two soil hydraulic parameters play key roles in crop selection for different blocks of a farm, and in schedu...
in this thesis, first the notion of weak mutual associativity (w.m.a.) and the necessary and sufficient condition for a $(l,gamma)$-associated hypersemigroup $(h, ast)$ derived from some family of $lesssim$-preordered semigroups to be a hypergroup, are given. second, by proving the fact that the concrete categories, semihypergroups and hypergroups have not free objects we will introduce t...
We consider a supply function equilibrium (SFE) model of interaction in an electricity market. We assume a linear demand function and consider a competitive fringe and several strategic players all having capacity limits and affine marginal costs. The choice of SFE over Cournot equilibrium and the choice of affine marginal costs is reviewed in the context of the existing literature. We assume t...
In this paper, we present an empirical analysis of deregulated electricity prices. We begin by examining the distributional and temporal properties of the price process in a non-parametric framework. This analysis is followed by comparing the forecasting ability of several different statistical models. The findings reveal several characteristics unique to electricity prices including determinis...
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