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Along with the rapid expansion of the arch dam technology, the shapes of dams are becoming increasingly diversified. In order to obtain the better shape designing quality of being economical and logical, rapid developments of shape design optimization are under way. Within the optimization, the key issue is to find out the economic target function aimed for minimum cost together with maximum efficiency...
In order to find out more suitable water for Vi o la tricolor irrigation, the effect of three water source with different salinity on growth, photosynthesis, and chlorophyll content in two cultivars of Viola tricolor were investigated. The results show that the underground water in Xinxiang (EC=2.98 ms/cm) decrease the seedling germination percent in both cultivars, while significantly in ‘229.05’,...
Adopting cement with sand to make intermittent cracked Rock-like samples, this article, through cracked samples with different cracked obliquity is tested with WDT-1500 multifunctional material test apparatus, study the mechanics characteristic and the destruction properties of rock mass, which under the combined action of cyclic load and the static load. Using computer processed the experimental...
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