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National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. With decades of reporting from battlefields ...

基于自适应阈值伪谱法的空间机器人轨迹优化倪浩，刘壮，马晓龙，张欧阳，陈萌，刘健行，吴立刚Adaptive threshold pseudo-spectral method for space robot trajectory optimization哈尔滨工业大学学报， 2026,58(1):1-11.Doi: 10.11918/202508063地下空间异构无人系统分布式协同搜索路径规划方法詹浩 ...

Computational models are mathematical models used to numerically study the behaviour of complex systems by means of a computer simulation. A computational model can be used to make predictions of the ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Alexandra Twin has 15+ years of experience as an editor and writer, covering financial news for public and private companies. Vikki Velasquez is a researcher and writer who has managed, coordinated, ...