an energy based damage index based on a new nonlinear finite element (fe) approach applicable to rc structures subjected to cyclic, earthquake or monotonic loading is proposed. the proposed method is based on the evaluation of nonlinear local degradation of materials and taking into account of the pseudo-plastic hinge produced in the critical sections of the structure. a computer program is dev...

With the reduction of fossil energy and increase consumption, development utilization new is an inevitable trend. Renewable has attracted attention because its cleanness abundance. However, affected by randomness intermittence renewable energy, it difficult for traditional power system to meet needs users after connected, solve consumption problem relying on alone. To address this problem, inte...

In the context of global energy transition, integrated regional systems containing renewable sources play an important role. While improving economic and carbon efficiency utilization, also bring research challenges to safe reliable operation systems. Based on region concept, a model optimal control method for are proposed. Firstly, key pipeline is taken as observation object, feasible system d...