Results 101 to 110 of about 2,959 (147)

[Development of a machine learning-based ionization efficiency prediction model for per- and polyfluoroalkyl substances and its application in semi-quantitative analysis]. [PDF]

Se Pu
Sun SZ, Li YY, Gao Y, Li KC, Chen Z, Li XQ, Zhang QH.   +6 more
europepmc   +1 more source

基于改进遗传算法的高压隔离开关主开关机构优化设计

Gaoya dianqi
水平伸缩式高压隔离开关因其占地面积小、产生断口明显，在高压电网中应用广泛。但其主开关机构在分合闸过程中产生较大的重力矩变化，除需配置合适的平衡弹簧，还需对结构进行优化设计，以减小机构所需驱动力矩。文中以550 kV交流高压隔离开关为对象，对主开关机构进行力学分析，并基于改进遗传算法对主开关机构进行优化设计、建立动力学仿真模型并进行验证，确定高压隔离开关工作时所需电机驱动力矩的最小值。结果表明，改进遗传算法相比传统方案所需最大电机驱动力矩减小22%，驱动力矩变化量减小43 ...
江鹏林, 胡明, 吴权峰, 林青云, 李维忠, 叶杰凯, 路明雪   +6 more
doaj  

[Automatic detection and visualization of myocardial infarction in electrocardiograms based on an interpretable deep learning model]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zhang Y, Zhang Y, Xie B, Lai D.
europepmc   +1 more source

基于混合型MMC的柔性直流电网故障电流阻断控制策略

Gaoya dianqi
柔性直流电网是实现大规模可再生能源发电汇集、输送和并网的有效手段。针对基于混合型MMC的直流故障电流阻断方案会引起功率传输中断的问题，本文提出了一种混合型MMC负压控制与超高速机械开关协调配合的故障电流阻断方法，该方法能够快速阻断故障电流并维持非故障线路的功率传输。通过分析故障电流组成及关键影响因素，确定了换流站的控制目标，基于全桥子模块的电压调节自由度，提出了利用混合型MMC输出负压主动吸收故障电流的控制策略，并设计了其与超高速机械开关的协调配合方案，实现故障的可靠隔离。最后 ...
朱博, 徐攀腾, 王晓雪, 辛业春, 江守其   +4 more
doaj  

[A motor imagery decoding study integrating differential attention with a multi-scale adaptive temporal convolutional network]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Dong Z, Bao X, Yang Y, Wu J.
europepmc   +1 more source

[ResLSTM-TemporalSE: an automated classification model for multi-lead ECG signals]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Qu M, Fu R.
europepmc   +1 more source

[Different Astragalus medicinal pairs improve diabetic nephropathy in mice by regulating lipid peroxidation through PTGS2]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Chen X, Jing Y, Liang H, Zhong J, Chen Z, Peng Y, Dai J, Xiao Y.   +7 more
europepmc   +1 more source

[Preparation of a novel polyhydroxy silica stationary phase and application in the separation of alginate oligosaccharides]. [PDF]

Se Pu
Jiao RW, Zhang DD, Hu XY, Zhu WT, Li X, Cai YD, Ren DD, Wang QK, Wu L, Zhou H.   +9 more
europepmc   +1 more source

[Research progress on elbow joint rehabilitation robots]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Li M, Xu F, Wang D, Xu J.
europepmc   +1 more source

[Emphasizing evolution of key technological elements in reconstructive surgery]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zan T, Li Q.
europepmc   +1 more source