Results 81 to 90 of about 142 (105)

基于实测和Matlab仿真波形比较的10 kV配电网单相接地故障暂稳态特征信息融合选线方法研究

Dianci bileiqi
10 kV配电网单相接地故障稳态选线方法受故障电阻、谐振接地电网补偿的影响较大，且信噪比较低；而暂态选线方法虽然信噪比较高，且受故障电阻、谐振接地电网补偿的影响较小，但具有依赖特征频带选取以及信号持续时间短，信号与暂态干扰信号产生混叠严重的特点。为了进一步提高选线成功率，本研究探索了一种融合暂稳态特征信息的选线方法，通过在Matlab仿真平台中搭建10 kV配电网系统的高精度pi模型网络，分析故障信号的暂稳态特征，在三相不平衡、支路开合闸等干扰条件下 ...
刘成英, 祁升龙, 芦翔, 王宏宇, 刘海涛, 李瑞祥, 杨兰均   +6 more
doaj  

[Clinical diagnosis and treatment of pitch-related disorders]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Zhuang P, Hu Y, Lan L, Zou S.
europepmc   +1 more source

[Research on portable airway impedance monitoring device based on expiratory oscillation]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Kuang Y, Che B, Li X, Liu L, Deng L.
europepmc   +1 more source

[Convolutional neural network human gesture recognition algorithm based on phase portrait of surface electromyography energy kernel]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2021
Xu L, Zhang K, Xu Z, Yang G.
europepmc   +1 more source

[Virtual reality-brain computer interface hand function enhancement rehabilitation system incorporating multi-sensory stimulation]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Shao X, Zhang Y, Zhang D, Men Y, Wang Z, Chen X, Xie P.   +6 more
europepmc   +1 more source

[Application of speech induced ABR in rehabilitation intervention for hearing impaired children]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Gao M, Dou X, Su M, Fan Y, Niu X.
europepmc   +1 more source

[Auditory response patterns of mouse primary auditory cortex to sound stimuli]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao, 2022
Zheng Q, Song C, Liang F.
europepmc   +1 more source

基于风险策略的配电网铁磁谐振故障分析与抑制措施研究

Dianci bileiqi
一般认为母线容性电流在0 A~20 A范围内都有铁磁谐振风险，应采取预防措施，但是当处于临界区域时，往往难于“抉择”。为规避谐振危害，合理科学地选择治理措施，本研究讨论了铁磁谐振受电压互感器伏安特征影响的规律，并提出了消谐措施的应用方法。首先，根据谐振机理与不同类型配电网谐振特点对铁磁谐振的风险因素进行总结归纳；然后，使用PSCAD搭建仿真模型，对某型号为JDZJ的电压互感器进行伏安特性实测，拟合了电压互感器伏安特性曲线，精准建模；接着，通过概率手段研究了电压互感器伏安特性改善 ...
苗静, 赵文彬, 鲍伟
doaj  

[Research on in-vivo electron paramagnetic resonance spectrum classification and radiation dose prediction based on machine learning]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Xiong G, Chen B, Ma L, Jia L, Chen S, Wu K, Ning J, Zhu B, Guo J.   +8 more
europepmc   +1 more source

[An optical parameter imaging system with profile information fusion]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2022
Li T, Dong Y, Liu M, Zhao J, Li M, Li Y.
europepmc   +1 more source