نتایج جستجو برای: structural problems arc the main trade

تعداد نتایج: 16211240  

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...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد 1388

there is less published research about how teachers in efl contexts respond to students who are relatively less mature and less competent l2 writers. while writing researchers have examined various issues concerning peer and teacher response in writing-oriented classes, little research has centered on the effect of collaborative tasks particularly dictogloss on writing skills. output collaborat...

As the economy of Iran's dependence on oil revenues turns the country's economy vulnerable to foreign fluctuations and shocks resulting in exchange rate crises, it is highly recommended to promote non-oil exports. Therefore, the factors effective on Iran's trade balance with its main trade partners, getting the highest amounts of Iran's non-oil exports are pivotal. This article is to study the ...

2006

The paper discusses the expanding scope of the aid-for-trade agenda, the amount of ODA donors are providing in support of trade, the prospects for additional resources, the problems related to identifying market failures, the principles for aid effectiveness, and the main areas for improving the effectiveness of aid-for-trade. It also elaborates a proposal to create aid-for-trade partnerships b...

2013
René van Bevern Rolf Niedermeier Manuel Sorge Mathias Weller

This chapter is devoted to surveying aspects of computational complexity for three central arc routing problems (and their corresponding variants): • Chinese Postman, where one asks for a minimum-cost tour traversing all edges of a graph at least once; • Rural Postman, which generalizes Chinese Postman in the sense that only a subset of the edges has to be visited; • Capacitated Arc Routing, re...

2009
Artyom G. Nahapetyan

Many problems in the supply chain management can be formulated as a network flow problem with specified arc cost functions. Let G(N, A) represent a network where N and A are the sets of nodes and arcs, respectively, and fa(xa) denotes an arc cost function. In the network, there are supply and demand nodes, and the main objective of the problem is to minimize the total cost by satisfying the dem...

ابراهیمی, فاطمه, زمردیان, علیرضا,

The rcnccted beam intensity as a lunctlon of dcclron energy ( lIE curve) is studied for an ideal (001) Ni surface by low energy electron diffraction (LEED). Double layer method, rcnormalized forward scattering (RFS) and quasi-dynamic method arc used for lIE curves calculation. The role of structural and nonstructural parameters of Ni on lIE curves is examined. The crfect or the optical p...

Economic growth is one of the main goals of societies, in which economic well-being is achieved. So far, various theories have been proposed regarding the factors influencing economic growth. However, in this study, using an econometric model, the role of human capital and structural changes on economic growth were investigated simultaneously. The case study was conducted during the period of 1...

Purpose: In this paper, we aimed at the identification of elements that causes problems in the way of effective distribution of children and adolescent books. We used publishers’ viewpoints that are specialists in the field of children books publishing. Methodology: mixed method design was used as a structure that consisted of qualitative and quantitative sections. In qualitative section, 11 c...

2002
Philippe Lacomme Christian Prins Wahiba Ramdane-Chérif

Planning problems over multi-period horizons occur in arc routing but are neglected by OR researchers. This paper presents these new problems, a classification and a hybrid GA able to tackle the planning and scheduling levels simultaneously.

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