منابع مشابه
the effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
pCO2 in the North Sea
Variability of the surface water partial pressure of CO2 in the North Sea H. Thomas, Y. Bozec, K. Elkalay, H. J. W. de Baar, A. V. Borges, and L.-S. Schiettecatte Canada Research Chair, Dalhousie University, Department of Oceanography, 1355 Oxford Street, Halifax, Nova Scotia, Canada Royal Netherlands Institute for Sea Research (NIOZ), Department of Carbon Chemistry, P.O. Box 59, Den Burg, Texe...
متن کامل(revitalizing silk road corridor in the region (north east of iran
introruction khawf in(iran)-herat and mazaresharif and shirkhan bandar in (afghanistan)-dushanbe in (tajikistan)_(kirgizstan)-kashghar in(china) project railway network is under construction that it is as a significant corridor for revitalizing silk road corridor in the region .at the present there are three different gauge in the region central asia with 1,520 mm gauge and turkey-islamic repu...
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ژورنال
عنوان ژورنال: Nature
سال: 1933
ISSN: 0028-0836,1476-4687
DOI: 10.1038/132786a0