This paper examines the properties of two Internet pricing systems – a flat rate and a usage-based pricing system – in terms of the social welfare, by generalizing the theory advocated by the scholars. This study contributes not only to the systematic generalization of the theory but also to the examination of the waste of resource innate in the flat rate tariff. We found that the superiority b...

<p><strong>Uzasadnienie teoretyczne</strong>: F-Score jest modelem opartym na metodzie skoringowej. Jego wysokie wartości wskazują solidne fundamenty finansowe danej spółki oraz w uproszczony sposób pozwalają wyróżnić jednostki atrakcyjne pod kątem wyboru do portfela inwestycyjnego. Od czasu opublikowania pierwotnej wersji tego modelu przez Piotroskiego 2000 roku przeprowadzon...

in this paper, the effect of cyclic loading on punching strength of flat slabs strengthened with carbon fiber reinforced polymer (cfrp) sheets is studied. experimental results of ten slab specimens under monotonic and cyclic loading are analyzed. eight specimens were strengthened with cfrp sheets on the tensile face of the slabs and the two other specimens were kept un-strengthened as control s...

in this paper, the accuracy of k- and k- turbulence models in super sonic boundary layer capturing of smooth/rough flat plates have been comprehensively investigated. among these investigations, some sorts of sensitivity analysis, including change in turbulence model, generated-grid density, near wall affects, c magnitude (for boundary layers generated on smooth flat plates), and change in c...

increasing the nutritional value of bread is important since the enriched product can be used for special target groups such as developing countries or special diets. wheat germ, a highly nutritive part of wheat kernel, is a by-product of milling factories and has the potential to be used for food supplementation. the main aim of this research was to supplement flat bread (barbari) with wheat g...

let r be a right gf-closed ring with finite left and right gorenstein global dimension. we prove that if i is an ideal of r such that r/i is a semi-simple ring, then the gorensntein flat dimensnion of r/i as a right r-module and the gorensntein injective dimensnnion of r/i as a left r-module are identical. in particular, we show that for a simple module s over a commutative gorensntein ring r, ...

The radiation efficiency of an infinite flat panel which is radiating an infinite plane wave into an infinite half space can be shown to be equal to the inverse of the cosine of the angle between the direction of propagation of the plane wave and the normal to the panel. The fact that this radiation efficiency tends to infinity as the angle tends to 90° causes problems with simple theories of s...