Gaoya dianqi目前对于列车操作主断引起车体过电压的抑制方法研究，大多是通过在车底低压部分进行过电压抑制，但由于不同车型保护接地方式的差异性，对操作主断过电压难以形成系统性的通用抑制方法。针对这一问题，从操作主断过电压的传播路径出发，研究可用于动车组高压侧的过电压通用抑制方法，提出了一种基于接地电感器的过电压抑制装置，理论分析了抑制器的电感量范围、磁芯材料、耐压和抗饱和需求等，并由操作主断过电压仿真模型验证了抑制器在抑制操作主断过电压的有效性。根据电感参数需求研制了抑制电感装置实物模型，对其进行了阻抗特性分析 ...
秦棋, 张健穹, 王庆峰, 李相强
doaj
Gaoya dianqi目前智能配电网的建设不断推进，加快了配电开关一二次设备相关技术的发展，也对长期处于复杂电磁环境下的二次设备提出了更高的要求。文中基于合成试验回路搭建了短路电流对配电开关二次设备电磁干扰试验平台，开展开断故障电流对相关干扰对成套设备的影响研究，分析干扰信号产生原因、频谱特性。针对干扰的特性设计一套抗干扰测量系统，利用ATP-EMTP模拟合成回路进行仿真分析并进行实际测试验证。结果表明：成套设备进行开断试验时，二次设备端口会受到较大的干扰。电流波形也会发生畸变，干扰电流的最高可到26 A ...
张赢 +4 more
doaj
Gaoya dianqi磁饱和式可控电抗器（magnetically-saturated controllable reactor，MSCR）运行时，交、直流共同励磁，铁心各部分磁场分布显著不同，这对损耗的分析计算造成困难。文中以单相他励式磁饱和电抗器样机研究对象，建立场路耦合三维有限元分析模型，首先计算铁心内部磁场分布，分析得到典型区域的磁场分布和变化特点；在此基础上，对铁心损耗进行仿真计算，归纳得出MSCR铁心总损耗随负载变化而变化的规律。研究指出，磁阀直流偏磁分量随负载增大升高明显，磁阀交变磁场分量随负载升高而降低 ...
王晛, 田铭兴, 张慧英, 王田戈
doaj
[Rehabilitation guidelines and specifications for traumatic spinal cord injury (2025 edition)]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiProfessional Committee Of Spine And Spinal Cord Injury Rehabilitation China Association Of Rehabilitation Of Disabled Persons +3 more
europepmc +1 more source
[Formononetin downregulates P53/SAT1/ACSL4 pathway-mediated ferroptosis to improve hypoxic-ischemic brain injury in neonatal mice]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoGuo T +8 more
europepmc +1 more source
[Research progress on flexible wearable sensors for health monitoring]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiChen X, Xu G.
europepmc +1 more source
[Nanomaterial-driven Lateral Flow Immunoassay: Technological Development and Application]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanZheng J, Hu X, Gu B.
europepmc +1 more source
[Deep eutectic solvent and improved needle filter-based liquid-membrane microextraction combined with high performance liquid chromatography for the determination of sulfonamide and fluoroquinolone residues in milk]. [PDF]
Se PuXu RM +5 more
europepmc +1 more source
[Research progress on the early warning of heart failure based on remote dynamic monitoring technology]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiShi Y +6 more
europepmc +1 more source
[Effect of composite graphene-protein hydrogels on neural regeneration after spinal cord injury in rats]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZhang Z, Fan Z, Wang X, Zhu Z.
europepmc +1 more source