The United States lacks a rigorous, routinized approach to managing foreign policy crises. The Wachenheim Center for Peace and Security has developed a set of Crisis Response Playbooks to serve as ...
India, June 11 -- On a clear June day, draped in marigold flowers and national pride, the Vande Bharat Express began its maiden journey from Shri Mata Vaishno Devi Katra to Srinagar. Flagged off by ...
In order to solve these problems, this paper proposes a negative Poisson's ratio metamaterial filled structure based on topology optimization. Firstly, a functional cell element topology optimization ...
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