Abstract: In the process of structural optimization design for components, fixed step size in the Evolutionary Structural Optimization and Bi-directional Evolutionary Structural Optimization methods ...

Abstract: Unmanned aerial vehicles (UAVs) have attracted increasing attention in civil and military applications. To achieve long endurance and large load for UAVs, the proton exchange membrane fuel ...

Human rights groups condemned the use of lethal force against protesters. Experts say Nepal’s army and police have historically not been held to account. By Anushka Patil International observers will ...

BEIJING, Sept 9 (Reuters) - China, Russia and Mongolia held their first joint border defence drills this week, the Chinese military said on Tuesday, underscoring closer security coordination among the ...

If a future hurricane knocks down a big city's electricity supply, a floating nuclear power plant could be positioned off the coast to keep the lights on. It's a scenario closer to reality thanks to a ...

BEIJING (Reuters) -China, Russia and Mongolia held their first joint border defence drills this week, the Chinese military said on Tuesday, underscoring closer security coordination among the three ...

Consumers select skin care products at Guangzhou’s first downtown duty-free store on Aug. 26, 2025, in Guangzhou, Guangdong Province of China. (Photo by Chen Jimin/China News Service/VCG via Getty ...