Driving a spacecraft around a planet isn’t anything like driving on a planet. A physicist explains orbital navigation.

Dura-Belt’s Jim Hammond shares his expert insights about designing, manufacturing and maintaining thermoplastic elastic belts ...

Abstract: Aiming at the problems of low efficiency, expensive equipment, and limited accuracy in traditional contact measurement of medium modulus gears, this paper proposes a non-contact gear ...

Abstract: To meet the requirements for wheelset dimension inspection in rail transit, this paper proposes a non-contact wheelset dimension measurement system based on multi-line structured light.

Determining the flow stress curves of metals and alloys in hot working conditions is essential for designers of metals forming processes. In this research, samples of a super duplex stainless steel ...

根据《铁路线路设计规范》（TB10001-2016）表格，计算不同铁路类型、地段与设计速度对应的最小曲线半径。 模式1 ...

Andy Smith is a Certified Financial Planner (CFP®), licensed realtor and educator with over 35 years of diverse financial management experience. He is an expert on personal finance, corporate finance ...

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Erika Rasure is globally-recognized as a leading consumer economics subject matter expert, researcher, and ...

One of Albert Einstein's greatest insights was realizing that time is relative. It speeds up or slows down depending on how fast one thing is moving relative to something else. How much does it change ...

This is the second volume of "A Course in Analysis" and it is devoted to the study of mappings between subsets of Euclidean spaces. The metric, hence the topological structure is discussed as well as ...