When a water heater dies, it rarely does so without sending up a flare first. The most important early clue is a subtle but ...

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: With the current utilization of Floating, Production, Storage, and Offloading (FPSO) units by the petroleum industry, and the trend towards optimizing the energy efficiency of electrical ...

Abstract: In this paper, a tunable triband frequency selective surface unit cell based on varactor-loaded split ring slots is presented. By using the third resonant mode, a considerable mutual ...