Abstract: In this paper, a cluster geometry control method is proposed for the problem of on-orbit assembly of modular spacecraft clusters. The method bases the cluster system on a manifold. A ...

Abstract: Digital twin technology can realize the integration and iterative optimization between the physical model and information model of complex products through real-time data collection, data ...

Virginia has a Democratic trifecta and a Democratic triplex. The Democratic Party controls the offices of governor, secretary of state, attorney general, and both chambers of the state legislature. As ...

Illinois has a Democratic trifecta and a Democratic triplex. The Democratic Party controls the offices of governor, secretary of state, attorney general, and both chambers of the state legislature. As ...