Results 51 to 60 of about 1,173 (100)

[Sex-specific hemoglobin thresholds for oxygen saturation: A non-linear regression analysis based on Tibetan inpatients]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Gongjue Z, Mao Y, Dawa P, Laba C, Yan Q.
europepmc   +1 more source

基于分布式地电压测量的开关柜放电溯源方法

Gaoya dianqi
暂态地电压（TEV）检测是测量开关柜局部放电的常用方法之一，然而由于现场接地系统布置等原因，其信号时常在设备间出现串扰，从而给放电源的定位带来困难。针对该问题，分别构建了单体开关柜与变电站开关室并排开关柜的电磁仿真模型，探究了在放电源未知的条件下单体开关柜暂态地电压信号的最佳测量点，以及多台开关柜共用接地体时的放电源定位方法。仿真结果表明，在放电源位置未知的条件下，柜体正面中下方的测量点位具有最佳的测量效果；对于共用接地体的并排开关柜，各柜对于同一放电脉冲的响应幅值随其与放电源的距离增加而显著衰减 ...
谢荣斌, 薛静, 靳斌, 王瑞果, 关浩斌   +4 more
doaj  

[Development of a surface electromyography index system for orofacial muscles and validation of a discriminant model in unilateral molar occlusal interference]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Li W, Shen Y, Yang Y, Shan S, Gao Z, Wen A, Shang X, Tian Y, Guo S, Wang Y, Wang Y, Zhao Y.   +11 more
europepmc   +1 more source

[Progress on ultrasound-responsive piezoelectric drug delivery system for treatment of neurodegenerative diseases]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Ma R, Chen Y.
europepmc   +1 more source

[Risks, mechanisms, and prevention strategies for cerebrovascular diseases in lunar astronauts under deep]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Tang L, Tang Q, Li Y, Wang L, Zhang F, Zhang X, Liu R, Zhang L.   +7 more
europepmc   +1 more source

[Study on the separation method of lung ventilation and lung perfusion signals in electrical impedance tomography based on rime algorithm optimized variational mode decomposition]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Gao G, Li K, Li J, Zhu M, Wang Y, Yan X, Shi X.   +6 more
europepmc   +1 more source

[Application of percutaneous endoscopic gastrostomy in children with methylmalonic acidemia or propionic acidemia complicated by feeding difficulties: a case series of 7 patients]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Li WY, Zeng YM, Zhang JY, Lu XY, Wang WJ, Huang M, Qiu XY, Huang M, Wang YY, Chen YY, Dong GQ.   +10 more
europepmc   +1 more source

[Guidelines for the diagnosis and management of first relapsed multiple myeloma in China (2026)]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
Plasma Cell Disease Group, Chinese Society of Hematology, Chinese Medical Association, Chinese Myeloma Committee-Chinese Hematology Association.   +3 more
europepmc   +1 more source

[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

新能源送出系统基于SVG缺相控制的暂态过电压抑制方法

Gaoya dianqi
针对新能源集中送出系统的人工接地短路试验和仿真结果表明，风电、光伏汇集线路发生单相瞬时接地故障后，系统在故障相分闸至重合期间存在暂态过电压，并已成为制约新能源送出能力的主要因素之一。文中基于对典型新能源集中送出工程暂态过电压的仿真计算和人工接地短路试验结果，分析了汇集线路故障发生及清除后暂态过电压的阶段性特征及其产生机制；研究了静止无功发生器（static var generator，SVG）在原有控制策略下的无功响应情况与系统过电压情况的关联性，分析了原有策略的缺陷 ...
王晨星, 李朋飞, 彭珑, 刘羿辰, 王聪   +4 more
doaj