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[Standard radiographic images in cephalomedullary nailing fixation for intertrochanteric femoral fractures]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Chang S, Sun G, Wang Z, Zhang L, Tian K, Liu T, Wang X, Rui Y.   +7 more
europepmc   +1 more source

[Application advances of fractional flow reserve in endovascular treatment of lower-extremity arterial disease]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Zhang L, Qiu J, Liu D, Guo P, Xia D, Shu C, Li X.   +6 more
europepmc   +1 more source

[Low-dose CT reconstruction based on high-dimensional partial differential equation projection recovery]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Niu S, Tang S, Huang S, Liang L, Li S, Liu H.   +5 more
europepmc   +1 more source

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配电网弧光接地故障暂态电压行波特性分析与故障定位

工程与技术创新
弧光接地故障属于配电网里较为常见的故障类型，由于其故障电流小且电弧不稳定，致使传统基于工频量的保护方法难以有效地检测与定位，本文围绕弧光接地故障产生的暂态电压行波信号展开研究，提出一种基于改进变分模态分解与Teager能量算子的高精度故障定位方法，结果显示，所提方法可有效克服电弧不稳定性带来的影响，在不同故障条件下定位误差均小于0.5%，有较高的准确性与可靠性，为配电网单相接地故障的精准处理提供了新的技术思路。该方法通过结合IVMD的自适应信号分解能力与TEO的瞬态特征增强特性 ...
张佳军
semanticscholar   +1 more source