To overcome the inter-carrier interference(ICI) of orthogonal frequency division multiplexing(OFDM) systems subject to unknown carrier frequency offset(CFO) and
According to the conductivity test results,it is found that oil conductivity increases with an increasing additive content,and the turbidity of engine oil is al
[Objective] To discuss the safety of shampoo with compound Zaofan function to the skins of laboratory animals. [Methods]Kunming mice was used for skin acute tox