We tried coffee tumblers from the biggest brands to finally settle the Stanley vs. YETI debate. Here's what we learned.

Abstract: A method for simultaneous test with multi-satellite was presented in this paper for the problem of production and high-efficiency thermal vacuum test with multi-satellite. Which was applied ...

Abstract: This letter introduces a micro-electromechanical system (MEMS) resonant pressure gauge based on aluminum nitride piezoelectric resonators that can operate in an atmospheric environment. The ...