Dynamic p-enrichment schemes for multicomponent reactive flows

We present a family of p-enrichment schemes. These schemes may be separated into two basic classes: the first, called \emph{fixed tolerance schemes}, rely on setting global scalar tolerances on the local regularity of the solution, and the second, called \emph{dioristic schemes}, rely on time-evolving bounds on the local variation in the solution. Each class of $p$-enrichment scheme is further divided into two basic types. The first type (the Type I schemes) enrich along lines of maximal variation, striving to enhance stable solutions in "areas of highest interest." The second type (the Type II schemes) enrich along lines of maximal regularity in order to maximize the stability of the enrichment process. Each of these schemes are tested over a pair of model problems arising in coastal hydrology. The first is a contaminant transport model, which addresses a declinature problem for a contaminant plume with respect to a bay inlet setting. The second is a multicomponent chemically reactive flow model of estuary eutrophication arising in the Gulf of Mexico.Comment: 29 pages, 7 figures, 3 table

Were Ukrainian regions too different to start interregional confrontation: economic, social and ecological convergence aspects?

This article deals with analysis of economic, social and ecological disparities of Ukrainian regions. Regional economic disparities are measured through the convergence concept and the article employs panel data analysis with fixed and random effects estimations. Our empirical results show the presence of economic convergence in Ukrainian regions. Initially it was found that poor regions do grow relatively faster than the rich. Moreover, the difference between poor and rich regions has been decreased 1.8 times during 1999 and 2010. In addition, it was found that the presence of ecological convergence in the Ukraine and initially ‘clean’ regions do increase pollution faster than initially ‘dirty’ regions. That is, Ukrainian regions were onverging to some environmental steady state through the process of increasing pollution. Ukrainian regions were also experiencing health onvergence with negative policy implications, since all regions do converge to some health levels through an increase in morbidity. The economic growth of Ukrainian regions was achieved through sacrificing environmental situations and increased morbidity. Therefore, there were no clear economic reasons to start interregional confrontation that has taken place in the Ukraine, since all regions were on the same track of development

Renewable Energy Promotion with Economic Incentives: The Case of the EU

The paper investigates the economic ways of green energy promotion in the European Union. It is stated that environmental friendliness and economic expediency are the main drivers of renewable energy development. The paper emphasizes that the EU has significant achievements in green energy promotion. The EU encourages the use of renewables in a variety of ways, including tariff and non-tariff instruments. In the research different economic incentives are classified by certain criteria. It is outlined in the research that the feed-in tariff was the first and most widely used mechanism of support for green energy producers. At the same time, it is gradually being replaced by a feed-in premium (a system of allowances for additional generation). The paper also highlights the importance of non-tariff instruments, including tax incentives, green certificate system, investment grants, and subsidies

The DPSEEA models for sustainable development estimation

All main indicators of SD are associated with an objective to show the desirable direction in to move. Some of the objectives related to specific targets. Progress towards one objective may negatively influence on progress towards other. The balance between these should be received dynamically, and it may not be possible to set a specific target for each indicator. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3161