Save some money by knowing the best time to use electricity. Here's what you need to know about peak, and off-peak usage, and how to time your electricity usage to lower your bills.

Three-dimensional coordinate measurement of feature points on the surface of a large-scale workpiece is important and difficult. Various relative measuring methods have been presented in recent years, ...

Given that the accuracy of range-based positioning techniques generally increases with the number of available anchor nodes, it is important to secure more of these nodes. To this end, this paper ...