This paper attempts to establish an evaluating index system of land comprehensive carrying capacity in Xi'an city involving three aspects, such as economic carrying capacity, social carrying capacity, and ecological carrying capacity, combined with the development goals and constraint factors of Xi'an city. Furthermore, we adopted the method of mean-squared deviation weight decision to evaluate...

The load-carrying capacities of welded joints need to be paid attention in the design frame, which transfers thrust generated by rocket engine body. A capacity evaluation method based on structural stress is proposed this study. Both ultimate and fracture section angle are precisely obtained method. At same time, a definition weld-failure given tests. frame analyzed through finite element model...