[Ultrasound-guided anhydrous ethanol and microwave ablation for functional parathyroid cyst: a case report]. [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2023 Wang D, Wu F, Xue Y, Lin X, Zhang Q.
europepmc +1 more source
[Improved generalized regression neural network for quantitative analysis of crude oil density by gas chromatography]. [PDF]
Se Pu, 2022 Liang H, Ding S, Wei Q, Zou J.
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贵—广Ⅱ宝安站极2Y3阀因无回报信号导致极2跳闸的故障分析及相关反措的建议
Gaoya dianqi, 2012 中国贵—广Ⅱ±500 kV高压直流输电工程中均采用激光脉冲直接触发晶闸管的直接光控晶闸管换流阀（以下简称LTT阀）。为了确保换流阀的安全可靠运行,对换流阀中的每个晶闸管用晶闸管电压监测电子线路（thyristor voltage mornitoring,TVM）进行在线监测。TVM实时用回报信号将监测的结果通过光缆送往阀底部电子设备柜（VBE）中。VBE中的单片机监测系统根据回报信号分析判定晶闸管的故障,当阀内故障晶闸管数超过设计允许的冗余数,产生相应的跳闸信号 ...
李侠, 马振军
doaj
["Leverage pry-off method" for effective prevention of thermal injury during microwave ablation of benign thyroid nodules]. [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2023 Wu F, Wu Q, Xu W, Wu Z, Liu L, Zhou L.
europepmc +1 more source
Dianci bileiqi, 2017 随着太阳能在我国能源比例中的持续增长,对光伏发电系统可靠性的要求变得越来越高。因此,光伏组件防雷保护已经成为一个非常重要的课题。介绍了光伏发电系统设备的雷击损害机理,计算不同防雷方式下光伏组件回路的感应过电压。建立光伏组件等效电路模型,分析旁路二极管上承受的雷电过电流。计算表明:雷电流波头陡度越大,光伏组件距离雷击点越近,感应过电压幅值越大。光伏电池单元和旁路二极管反向安装时,旁路二极管上承受的雷电过电流幅值和过电流持续时间要小于正向安装方式。雷电过电流极易损坏旁路二极管 ...
窦志鹏, 杨仲江, 刘健
doaj
[Indirect reduction technique via Nice knot for transverse fracture of patella]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2021 Qiu Y, Wang F, Lan W, Chen Y, Xie Y.
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[Comparison of effectiveness of lower extremity axial distractor and traction table assisted closed reduction and intramedullary nail fixation in femoral subtrochanteric fracture]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2023 Zhang X +6 more
europepmc +1 more source
Dianci bileiqi, 2015 大型接地网由于进线回数较多,进行接地阻抗测量时必须更加考虑分流系数的影响。通过大量的实测研究,提出了大型接地网分流系数的准确测量方法和注意事项。并研究了不同强度背景干扰下分流小电流信号测试时提高信噪比的方法,提出了有针对性的抗干扰措施:提供基准相位的无线选频通讯仪应布置在变电站中央空旷地带,且不宜靠近变压器器身、干式电抗器等强辐射源,以免受强电场干扰影响无线信号传输质量;测量电缆屏蔽层的分流大小时,应同一回进线的三相同时测量,这样可以减小工频干扰的影响;一般情况下 ...
周仿荣 +8 more
doaj
[Lateral decubitus position assisted plate internal fixation through a lateral incision to assist reduction combined with intramedullary nail in treatment of complicated subtrochanteric femoral fracture]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2022 Chen Z, Li H, Chen M, Yang R, Luo Y.
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[Does preoperative risk grading have clinical value for benign thyroid nodular ablation?] [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2022 Wu F +8 more
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