Results 51 to 60 of about 3,261 (100)

[Research progress on flexible wearable sensors for health monitoring]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Chen X, Xu G.
europepmc   +1 more source

真型变压器中典型悬浮缺陷的局部放电特征

Gaoya dianqi
局部放电缺陷在运行过程中会逐渐劣化甚至引发高能放电故障，严重威胁变压器的安全运行。文中基于一台110 kV真型变压器搭建局部放电试验平台，设计了高压引线悬浮金属颗粒、高压引线附近金属尖刺悬浮、静电环悬浮3种悬浮放电缺陷，采用阶梯升压法进行试验，记录局部放电发展过程中脉冲电流、特高频和声信号的变化规律并进行对比分析。发现3种悬浮放电缺陷的“剧烈”放电阶段均不明显，击穿前的放电能量均比较低，声信号频谱没有出现“主频左移”的现象。3种缺陷虽然都是悬浮电位放电，但是其局部放电特征明显不同 ...
朱涛, 陈理, 沈煜, 江波, 金雷, 郑玉平, 黄猛   +6 more
doaj  

[Rehabilitation guidelines and specifications for traumatic spinal cord injury (2025 edition)]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Professional Committee Of Spine And Spinal Cord Injury Rehabilitation China Association Of Rehabilitation Of Disabled Persons, Professional Committee Of Spine Chinese Association Of Rehabilitation Medicine, The Second Medical-Rehabilitation Integration Working Committee Chinese Association Of Rehabilitation Medicine, Spine And Spinal Cord Injury Repair Study Group The Third Professional Committee Of Neurorestoratology Chinese Medical Doctor Association.   +3 more
europepmc   +1 more source

[Progresses on temporal interference electromagnetic stimulation for non-invasive deep brain function modulation]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zhou T, Yu P, Xu Y.
europepmc   +1 more source

[Research on type 2 diabetes prediction algorithm based on photoplethysmography]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Hu M, Wu Q, Cao Y, Cao J, Zhao Y, Zhang L, Liu X.   +6 more
europepmc   +1 more source

基于多物理量的GIS绝缘件沿面放电阶段划分策略研究

Gaoya dianqi
气体绝缘金属封闭设备（GIS设备）内部绝缘缺陷导致的局部放电会影响设备的绝缘性能，其中沿面放电是引发GIS设备闪络故障的主要原因。为有效实现局放异常严重程度判定，指导现场GIS局放异常处置，本文提出了基于多物理量的GIS绝缘件沿面放电精细化放电阶段划分策略。首先建立了气体绝缘多物理信号检测试验平台，应用光学传感器、特高频（UHF）传感器和超声波（AE）传感器测量绝缘件不同阶段沿面放电电气量，并与脉冲电流法局放进行数据对照，依照GIS设备绝缘件实际沿面放电可能因素设计沿面放电缺陷模型 ...
李玉杰, 路永玲, 王真, 李洪涛, 肖焓艳, 庄添鑫   +5 more
doaj  

[Efficacy analysis of electrochemical detection of leukocyte esterase based on glucosyl ester in diagnosis of periprosthetic joint infection after knee arthroplasty in rabbits]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Luo N, Chen Q, Zeng T, Zuo H, Niu D, Shen B.   +5 more
europepmc   +1 more source

超特高压环氧绝缘件超声检测技术及典型缺陷声学回波特征分析

Dianci bileiqi
超特高压环氧绝缘件内部缺陷的可靠检测对于保障电力设备安全可靠运行具有重要意义。文中提出基于超声脉冲反射法实现超高压环氧绝缘件内部气孔、气隙、密度不均等缺陷的有效检出。论文基于声场仿真技术分析多时空尺度下超声波在环氧复合材料内的传播规律，探寻影响环氧复合材料内部缺陷检测灵敏度的关键因素，掌握不同缺陷直径、尺寸、深度下超声回波信号的特征。为验证理论分析有效性，搭建了超声检测试验平台并对特高压盆式绝缘子典型缺陷试样进行了相关的检测试验 ...
陈田, 胡睿智, 魏鼎欣, 梁新钰, 刘鹏, 陈宸   +5 more
doaj  

[State-of-the-art in peripheral nerve injury diagnosis and therapy]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Sun J, Chen L.
europepmc   +1 more source

[A head direction cell model based on a spiking neural network with landmark-free calibration]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Yu N, Huang J, Lin K, Zhang Z.
europepmc   +1 more source