Results 71 to 80 of about 4,189 (124)
[Research progress on flexible wearable sensors for health monitoring]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiChen X, Xu G.
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[A multifrequency time-difference electrical impedance tomography algorithm using spectral constraints]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2020 Cao L +7 more
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[How I treat vasovagal syncope in children]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiZou RM, Wang C.
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考虑热阻和风电不确定性变化影响的多重随机电热耦合系统优化调度
Gaoya dianqi热网热损特性对于热力系统热网管道温度动态过程影响巨大，且在电热联合调度中受热阻的不确定性变化影响显著。针对实际工况中热网热阻的不确定性变化，分析了热损特性对于热网管道温度影响机理，研究其差异性变化，提出了一种考虑热阻不确定性变化热损特性影响的热网管道温度动态过程约束模型。基于此，建立了同时考虑热网热阻和风电不确定性影响的多重随机电热耦合系统调度模型及其信息间隙鲁棒优化求解策略，最后通过算例验证了所提模型的有效性。
张磊 +5 more
doaj
[A signal sensing system for monitoring the movement of human respiratory muscle based on the thin-film varistor]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiYuan Y, Zhang Z, Xie L, Huang H, Liu W.
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Dianci bileiqi针对不对称谐振接地配电网传统故障保护启动方式感知过渡电阻的能力薄弱以及故障选线困难问题，提出了一种计及不对称度的单相接地故障保护复合启动及选线方法。首先，利用零序电压变化量构造保护预启动判据，发现将其整定为3%的相电压时，能准确感知高阻接地故障，但易受配电网运行方式改变的影响；其次，在对谐振接地配电网正常和故障运行状态线路零序电流分析发现，健全线路的线路零序不平衡电流差为0而故障线路零序不平衡电流差为故障相电压与过渡电阻的比值，根据这一显著差异进而得到故障保护复合启动及选线判据 ...
王俊, 肖辉, 陈湘元, 吴永孝
doaj
Zhendong Ceshi yu Zhenduan针对轮毂电机驱动电动汽车不平衡电磁力引起的垂向振动恶化问题，提出一种基于模型预测控制（model predictive control， 简称MPC）理论的半主动悬架控制方法。首先，建立由轮毂电机和空气悬架（hub motor‑air suspension， 简称HM‑AS）系统组成的轮毂电机驱动电动汽车七自由度半车模型，并基于随机路面进行实车试验来验证模型的准确性；其次，根据车辆综合性能指标构建成本函数，以悬架动行程和可调阻尼减振器生成的阻尼力为约束条件，建立模型预测控制器；最后 ...
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[A high temporal resolution dynamic T<sub>2</sub>*W imaging study based on step oxygen stimulation of rat kidneys]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoSun S, Tao Q, Zhao K, Hu Q, Feng Y.
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[Resveratrol protects barrier function of mouse brain microvascular endothelial cell monolayers with oxygen/glucose deprivation and PM<sub>2.5</sub> exposure by maintaining mitochondrial dynamics balance]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoQin M +9 more
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