نتایج جستجو برای: track two diplomacies
تعداد نتایج: 2483722 فیلتر نتایج به سال:
During the study for the dimensioning as well as the selection of the individual materials constituting a railway track, the ballast and the substructure present residual deformations, directly related to the deterioration of the geometry of the track. The slighter the residual deformations and the slower their alteration over time is, the better the quality of the track. The actions acting ...
BACKGROUND As a developing country, Iran has not had a substantial share in global science production activities; however, this country has recently been the forth country in the world regarding research output publications, and biomedical research has played a crucial role in achieving this honorable position. OBJECTIVES In this paper, we aimed to introduce the strategies employed at Baqiyat...
Four diplomatic models have been elaborated, with reference to the main Western political cultures: the conservative, the liberal, the socialdemocrat/constructivist and the socialist/manichean. Then, these categories of political sociology have been applied to the four arenas of world governance: cultural (conflicts between different nations and/or civilizations), military (peace and war intera...
Railway Sleepers are one of the most important elements in the track superstructure. Their tasks are keeping the track geometry, resisting against vertical and lateral train loads and transferring the train loads to the ballast layers. In this research, the railway sleeper as a beam on the elastic foundation is modeled with finite length. In this regard, two cases including a) beam with constan...
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