This study compares four different potential evapotranspiration equations according to Priestley Taylor, Kimberly Penman, Penman Monteith (FAO-56) and Hargreaves on a global basis to demonstrate their difference, and assess their impact on the calculation of stream flows. The various equations of potential evapotranspiration show great differences in magnitude. But due to the limited availabili...

1 Problem Show that the electric field vanishes inside a perfect conductor according to " all " definitions of this concept, while the interior magnetic field vanishes only under some definitions. This problem depends on the concept of a conductor, and of a perfect conductor. The phenomenon of conduction of electricity may have been first reported by Gray in 1731 [1], who described experiments ...

disease. One first-class original contribution, by John Brooke, compares the images of Whewell and Priestley as nineteenth-century caricatures embellished by twentieth-century sociologists. McEvoy summarizes his well-documented analysis of Priestley. Many ofthe other papers, based on exegesis ofparticular sides of Priestley's complex thoughts, connect perhaps too little with the original signif...

The breath hydrogen test is used in gastroenterological investigation, particularly for sugar malabsorption, transit time, and the investigation of small-bowel bacterial overgrowth. Several methods of collecting breath from infants and children for hydrogen assay have been described. Four such techniques (postnasal catheter, nasal prong, Rahn-Otis end-tidal sampler, and modification of a party ...

Correlation of the Priestley-Taylor coefficient value, α, with air humidity and wind speed for obtaining evapotranspiration (ET) values similar to those by the Penman-Monteith equation maybe justified from a strictly utilitarian viewpoint in cases when wind measurements are lacking. However, by doing so, a conflict of scale arises, which leaves ample room for incorrect generalization about the ...

Let P be a configuration, i.e., a finite poset with top element. Let Forb(P ) be the class of bounded distributive lattices L whose Priestley space P(L) contains no copy of P . We show that the following are equivalent: Forb(P ) is first-order definable, i.e., there is a set of first-order sentences in the language of bounded lattice theory whose satisfaction characterizes membership in Forb(P ...

Abstract We provide a new perspective on extended Priestley duality for large class of distributive lattices equipped with binary double quasioperators. Under this approach, non-lattice operations are each presented as pair partial dual spaces. In enriched environment, equational conditions the algebraic side may more often be rendered first-order particular, we specialize our general results t...