منابع مشابه
Different Damaged Shaft Lining Concrete Resistance to Sulfate Corrosion
Shaft lining concrete itself has a certain degree of initial damage before being corroded by sulfate. In order to study the resistance of the concrete of the initial damage in different corrosion solution concentration of sulfate, samples of concrete without initial damage, loaded 50% ultimate load and loaded 70% ultimate load with initial damage concrete were selected and studied their corrosi...
متن کاملA comparative study of two meta-heuristic algorithms in optimizing cost of reinforced concrete segmental lining
In this work, we tried to automatically optimize the cost of the concrete segmental lining used as a support system in the case study of Mashhad Urban Railway Line 2 located in NE Iran. Two meta-heuristic optimization methods including particle swarm optimization (PSO) and imperialist competitive algorithm (ICA) were presented. The penalty function was used for unfeasible solutions, and the seg...
متن کاملAn optimal method to design reinforced concrete lining of pressure tunnels
The utilization of the lining type in pressure tunnels is highly dependent on the geological and hydraulic conditions. There are two types of lining, namely concrete and steel lining but steel lining is one of the most expensive arrangements. To decrease the length of steel lining in these tunnels, the concrete lining, which prevents water seepage from the surrounding rock mass, is the appropri...
متن کاملAn Electron Microscope Study of the Cells Lining the Small Blood Vessels of Helix pomatia Linn
identified between neighbouring Schwann cells at nodes of Ranvier (Robertson, 1957; Uzman and Nogueira-Graf, 1957), in the latter situation there is no multiplicity of cytoplasmic layers, as is the case in the former. Since the cells of the inner core bear some resemblance to both fibrocytes and Schwann cells, i t might be supposed that they would best be provisionally classified as "neural fib...
متن کاملLactose-fermenting Salmonella.
Salmonella species are generally considered to be unable to ferment lactose and sucrose according to Bergey's Manual. Recently, however, J. M. Bulmash, McD. Fulton, and J. Jiron (J. Bacteriol. 89:259, 1965) and L. J. Kunz and W. H. Ewing (J. Bacteriol. 89:1629, 1965) have reported two separate species of Salmonella capable of fermenting lactose and sucrose. The organism reported here again illu...
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ژورنال
عنوان ژورنال: Journal of the Institute of Brewing
سال: 1936
ISSN: 0046-9750
DOI: 10.1002/j.2050-0416.1936.tb05673.x