Polyvinyl chloride is the actual name of one of the most versatile items in any shop, PVC piping. PVC was first synthesized in 1872 by a German chemist. Later Waldo Semon and B.F. Goodrich later made ...

Although permanent teeth are meant to last a lifetime, there are a number of reasons why you may need to have a tooth pulled as an adult. Broken, infected, or overcrowded teeth can not only affect the ...

Abstract: This letter investigates the effects of imperfect channel state information (CSI) for incident channels and discrete phase-shift design on the performance of full-duplex two-way ...