【Abstract】Professor Xu Yuanchong’s theory of three aspects of beauties provides us with a theoretical guide to the tr......

Truck scheduling and storage allocation, as two separate subproblems in port operations, have been deeply studied in pas......

Our goal is to provide a detailed review of veno- occlusive disease (VOD), Budd-Chiari syndrome (BCS), and congestive he......

给出了完全阿基米德半群上关系()*是同余的若干等价条件....