نتایج جستجو برای: reinforce element
تعداد نتایج: 215270 فیلتر نتایج به سال:
the effect of the presence of perforations on he stresses of a plate is a problem which is of great interest in structural design and in the mathemattical theory of elasticity. among the many hole patterns that are likely to require consideration is the ring of equally spaced circular holes. the present worke investigates stress & strain analysis of a thin isotropic circular plate containing a ...
Bracoviruses associate symbiotically with thousands of parasitoid wasp species in the family Braconidae, working as virulence gene vectors, and allowing the development of wasp larvae within hosts. These viruses are composed of multiple DNA circles that are packaged into infective particles, and injected together with wasp's eggs during parasitization. One of the viral segments of Cotesia vesta...
In this paper, the practical engineering of a 420 m PC continuous beam bridge is taken as research object, and an external prestressing reinforcement method proposed to reinforce damaged cracked girder. The paper study structural performance before after reinforcement. heavy vehicle loading test reinforced was carried out. A total three spans were selected, each span selected seven deflection s...
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