1.本文报告一种新的锁相方法——直接控制G_(unn)振游器偏压的锁相法。J·Bapraw ski,C·Smith和F·J·Bernve曾发表文章认为这是......

Large-scale public buildings have high energy density, which on average consume 5 to 15 times more electricity than resi......

目的了解ICU医务人员手部与患者及其周围物表接触行为,为加强院感防控工作提供参考。方法将IPad分布于外科ICU不同方位,通过视频拍......