Results 91 to 100 of about 313,965 (145)
[D-wave-guided navigation in spinal cord surgery: From monitoring to decision-making]. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanLi J, Xi J, Jiang X.
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[How I treat pediatric febrile infection-related epilepsy syndrome]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiDeng XL, Peng J.
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Gaoya dianqi电容式电压互感器（CVT）是电力系统中重要的电压状态监测设备，其在测量工频电压时具有较高精度。但是当电力系统中发生次同步谐振等复杂工况时，CVT中间变压器的铁心将会发生饱和，CVT的电压传输特性将会随铁心电感的改变而改变，进而导致CVT在测量谐波时的测量误差增大。现有的基于电压传输特性的谐波测量方法难以在电压传输特性发生变化时动态计算CVT谐波。因此，文中搭建了计及中间变压器铁心饱和特性和杂散电容的CVT电路模型，通过逆向求解该模型，实现谐波的精准还原，最后对35 kV CVT进行谐波仿真验证，结果表明，
郭树永 +5 more
doaj
[Study on electrospun film-covered tracheal stents with adaptive release of anti-inflammatory drugs driven by the piezoelectric effect]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiWang Z +6 more
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, 2017 本发明涉及一种高精度在线动态连续可调输出电源。包括：微处理器，连接模拟采集芯片和数字电位计，用于接收来自模拟采集芯片采集到的电压值，解算出电源芯片的当前电压设置管脚电阻值，通过自身SPI接口配置数字电位计；数字电位计，输出端连接运算放大器和电源芯片，用于在微处理器的配置下，改变电源芯片的电压调整管脚的电阻值；运算放大器，输出端连接模拟采集芯片，用于采集电源芯片的电压设置管脚电阻值所对应的电压值，实现电阻设置的实时监测；模拟采集芯片，用于实时采集数字电位计的输出电阻转换出的电压值 ...
杨帆, 曹云侠, 刘晓源, 罗勇
core
[A signal sensing system for monitoring the movement of human respiratory muscle based on the thin-film varistor]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiYuan Y, Zhang Z, Xie L, Huang H, Liu W.
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Gaoya dianqi直流换流站高通HP3型交流滤波器组中电抗器匝间短路故障事故多发，由于缺乏对此故障的快速监测及保护，导致其匝间短路持续存在3～9 min之久并起火燃烧。匝间短路后电抗器的等值电感会不断减小，由此引起了滤波器电路参数变化并进而引发了滤波器配置的热过负荷保护启动告警，长久故障也引发了次生的电抗器底部支撑绝缘子闪络接地致使滤波器差动保护动作出口跳闸。文中分析了3起典型故障案例，结合C型高通HP3型滤波器电路设计理念及运行特点，解释了有关保护启动及动作的原因。基于匝间短路会导致HP3电路中电阻器上的工频电压 ...
贾跟卯 +4 more
doaj
, 1996 文章叙述了一台输出电压０一１００Ｖ连续可调，输出电流１００ｍＡ的小型高频锯齿波发生器偏压电源，输出２０—１００Ｖ，电压稳定性优于±３×１０－５，峰－峰值相对纹波电压优于３．５×１０－
周文明, 郭秋衔
core
[Development and electrophysiological validation of a temporal interference transcranial magnetic stimulation system for mice]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiCui C, Wang T, Zhang Y, Zheng W, Xu G.
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[An integrated electrical stimulation-drug iontophoresis-monitoring system for tendon injury repair]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiRui B, Guo X, Zhou Y, Zhuang C, Liu C.
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