If defrost isn’t working, something in the chain is broken. This step-by-step approach shows you exactly where to look and what to test.

Abstract: Reducing the contact bouncing of electromechanical relays is a key ingredient to increase their switch reliability and overall lifetime. For this reason, this paper presents a control system ...

Abstract: Commensurate Multiple Time-Delay Systems (CMTDSs) are of considerable interest for many applications, ranging from process control to decision-making systems. A stable CMTDS can become ...

Illustration of TDRS-13, the final satellite in NASA’s Tracking and Data Relay Satellite (TDRS) constellation, which has provided crucial connectivity for govern- ment users like the ISS and the U.S.