以20s 为1 页计算下列参数: (1)边缘频率(SEF):指95%功率处的频率值(即慢 于此频率的各个频率功率总和占总功率的95%). (2)中心频率(MPF):指50%功率处的频率值.
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... 双频指数; 边缘频率 [gap=1646]Key words】 Desflurane; low –flow anesthesia; bispectral index; Spectral edge frequency ...
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常用的指数有边缘频率 spectral edge frequency ; SEF
谱指数和边缘频率 spectral edge frequency ; SEF
频谱指数和边缘频率 spectral edge frequency
目的观察腰麻中不同辅助药对脑电双频谱指数(BIS)和边缘频率(SEF)的影响。
Objective To observe the effects of different adjuvants on bispectral index (bis), spectral edge frequency (SEF) of electroencephalogram during lumbar anesthesia.
由于输出牛在低频率和高功率情况下会产生震动,在铁芯边缘和铜带之间塞入毛毡。
Due to vibration at low frequencies and high power, felt was inserted between the brass bands and the sides of the cores.
介绍了利用边缘技术检测激光频率信号,实现大气激光通讯的原理。
A principle study of detecting laser frequency signals based on edge technology for atmospheric laser communications is presented.
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