osteomalacia 发表于 2025-3-21 19:31:09
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Newer Mathematical Methods in Structural Optimization, optimization. Our activity is related mainly to sizing optimization. These constraints can be the behaviour of the structure, like the stresses, fatigue, deformations, stability, eigenfrequency, damping, etc. These constraints are usually highly nonlinear, so to find the optimum it is not an easy tMets552 发表于 2025-3-22 03:58:42
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Cylindrical and Conical Shells,al cost. The calculation shows that the cost decreases when the shell diameter decreases. The decrease of diameter is limited by a fabrication constraint that the diameter should be minimum 2 m to make it possible the welding and painting inside of the shell.蛰伏 发表于 2025-3-22 21:56:11
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József Farkas,Károly Jármai Renaissance scholar and philosopher said, "water is the driver of nature". Many may have considered it to be an overstatement in the past, but at the beginning of the third millennium, no sane individual would disagree with Leonardo‘s view. Water is becoming an increasingly scarce resource for mostostensible 发表于 2025-3-23 07:18:54
József Farkas,Károly Jármai on the current conflicts in this region.Comprehensive overvFreshwater is the most precious and valuable natural resource essential for all kind of life on the land surface. Especially man depend on the availability and quality of the water, it is vital for the socio-economic growth of societies and