نتایج جستجو برای: diffusion and dispersion modeling

تعداد نتایج: 16929229  

2007
Andreas Hornstein Per Krusell Giovanni L. Violante

Standard search and matching models of equilibrium unemployment, once properly calibrated, can generate only a small amount of frictional wage dispersion, i.e., wage differentials among ex-ante similar workers induced purely by search frictions. We derive this result for a specific measure of wage dispersion—the ratio between the average wage and the lowest (reservation) wage paid. We show that...

2002
Joel Shapiro

Wage inequality in the United States has grown substantially in the past two decades. Standard supply-demand analysis in the empirics of inequality (e.g. Katz and Murphy (1992)) indicates that we may attribute some of this trend to an outward shift in the demand for high skilled labor. In this paper we examine a simple static channel in which the wage premium for skill may grow increased firm e...

2004
D. P. Cann W. H. Stiver R. G. Zytner

Hydrocarbon contamination of unsaturated soils has been a serious environmental problem for decades. Two of the most common methods of remediating these sites are soil vapour extraction (SVE) and bioventing. Predictive models have been developed for the SVE and bioventing processes in order to estimate mass transfer coefficients for experimental systems and clean up times for field sites. These...

2016
Ying Peng Jian Cui Youhui Cao Ying Du Andrew Chan Hao Yang Shinji Wakamatsu Toshimasa Ohara

The impact of manufacturing transfer in Jiangsu province, China, on the spatial-temporal variations of SO2 emissions is investigated using estimated sector-specific SO2 emissions, and emissions in the different transfer-in and transfer-out regions were quantified during 2000–2011. Our results show that SO2 emissions had undergone three phases: an increase in the period of 2000–2005, a rapid dec...

2004
D. Indumathi M. V. N. Murthy

It is by now established that neutrinos mix, have (different) non-zero masses, and therefore oscillate. The oscillation parameters themselves, however, are not all well-known. An open problem is that of the neutrino mass hierarchy. We study the possibility of determining the neutrino mass hierarchy with atmospheric neutrinos using an iron calorimeter detector capable of charge identification su...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه مواد و انرژی - پژوهشکده سرامیک 1392

thermal barrier coatings (tbcs) are used to provide thermal insulation to the hot section components of gas turbines in order to enhance the operating temperature and turbine efficiency. hot corrosion and thermal shocks are the main destructive factors in tbcs which comes as a result of oxygen and molten salt diffusion into the coating. in this thesis atmospheric plasma spraying was used to dep...

2006
Timothy A. Davis Edward W. Davis

This work is broken down into the following sections: Annotated Bibliography ........................................................................................................1 A full reference with a brief description for each paper and a relevance factor of 1-3 (1 is best). Note that some text is taken verbatim from the source. Special Issues Bibliography ..................................

2008
Jorge A. Colazo

Dispersion in working teams has been addressed by earlier research mostly in terms of the physical distance that separated team members. In more recent work, however, the focus has been shifting towards understanding the influence of a newer construct: that of temporal dispersion (TD). The study of TD is so far constrained mostly to conceptual work, and the study of its association with distrib...

Journal: :J. Computational Applied Mathematics 2010
Ivan Tomov Dimov Rayna Georgieva Sofiya Ivanovska Tzvetan Ostromsky Zahari Zlatev

A systematic procedure for sensitivity analysis of a case study in the area of air pollution modeling has been performed. Contemporary mathematical models should include a large set of chemical and photochemical reactions to be established as a reliable simulation tool. The Unified Danish Eulerian Model is in the focus of our investigation as one of the most advanced large-scale mathematical mo...

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