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地理信息系统课程实践教学的改革与探索

"地理信息系统"是一门技术性、实践性很强的新学科,实践教学在该课程的教学中起着重要的作用。这些年来,我们对该课程的实践教学(包括实验课教学、实验室建设、师资培养、教学方式组织、毕业论文及毕业设计等方面)进行了全面的改革,并加强了同生产实践单位的联系。     

What U.S. Navy strategists and defense planners should think about in the era of maritime great power competition

ABSTRACT

For the first time in a generation, the US Navy finds itself in an era of great power competition. As US naval strategists and defense planners begin to organise materially and conceptually to confront the strategic and operational-level challenges posed by China and Russia, what should they keep in mind? What should frame their thinking? Absorbed with the day-to-day tasks associated with managing how the fleet is being built, operated, and rationalised, these busy officers and civilians seldom can step back and gain some perspective on fundamental aspects of the security environment and relate those to naval purpose. To that end, this article provides a primer on what to keep in mind and how to think in an era of maritime great power competition.