Spectrum sensing is a fundamental technology in cognitive radio(CR) networks，where the CRs act as secondary users(Sus) th......

　　Cadmium and halide-based chalcogenide nano/microcrystals have shown remarkable performance in the field of displays,......

...

近日,世界卫生组织简报中发表了题为“Relative health performance in BRICS over the past 20 years：the winners and losers”的......