基于短路发电机系统的MMC型电压源换流器短路电流试验方法研究
Gaoya dianqi, 2018 作为构建智能电网的关键技术—基于电压源换流器（voltage sourced converter,VSC）的柔性高压直流输电技术在中国已经得到广泛应用:±350 kV鲁西异步联网柔性高压直流输电工程建成投运,±500 kV张北可再生能源柔性高压直流电网示范工程开工建设,±800 kV乌东德—广东高压直流输电工程进入工程实施阶段。作为电压源换流器VSC的一种典型结构形式,模块化多电平换流器（modular multi-level converter,MMC ...
胡治龙 +5 more
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Gaoya dianqi, 1996 各种真空开关正以其优异的性能在煤矿推广应用,但是真空开关的操作过电压却使其所控制的电动机等高压设备的绝缘受到极大的危胁,因此有必要加强对真空开关性能的测定,完善过电压的防扩措施。
史丽萍, 许允之
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[Effects of control strategies of the left ventricular assist device on the cardiorenal hemodynamics: an in-vitro model study]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiZhang L, Wang Y.
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[Combined effects of high loading rate and damage severity on the mechanical behavior of lumbar intervertebral disc injury and analysis of the underlying mechanisms]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiLiu Q +6 more
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[A cross-subject stress recognition method integrating bidirectional cross-modal multi-path fusion and adaptive adversarial learning]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiWang P, Zhu M, Chou Y, Wei X, Liu S.
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Gaoya dianqi为深入研究芳纶绝缘纸热压过程对其介电性能的影响，文中制备了不同热压温度和热压压力的芳纶绝缘纸，测试了其紧度和介电性能，并结合扫描电子显微镜进行微观形貌分析。研究结果表明，在热压温度为220~260 ℃，压力为8~16 MPa范围内，随热压温度及压力的提升，绝缘纸介电常数受到结晶度和纸中孔隙的影响，整体呈现小幅度上升趋势；交流击穿强度受到纸中孔隙的影响，随热压参数的提升而不断提高并趋向稳定。热压过程中，温度和压力协同作用于绝缘纸，其中温度对交流击穿强度的影响较大。
马婕 +4 more
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[Short-term clinical outcomes of complete dentures fabricated by conventional and CAD/CAM milling techniques: A self-controlled study with randomized wearing sequence]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanCao H +6 more
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[Clinical effects of multisegmental lymphatic-venous anastomosis in the treatment of post-traumatic lymphedema]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiWang JJ +4 more
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Jianzhu Gangjiegou Jinzhan针对钢柱在使用过程中会遭受不同程度的腐蚀，进而造成其承载能力发生变化的问题，文中以遭受随机点蚀的H型钢长柱为研究对象，采用蒙特卡洛方法和有限元分析来模拟长柱的整体失稳行为，从而研究随机点蚀对钢柱轴压承载能力的影响。以蒙特卡洛方法来解决点蚀的随机分布问题，建立了蒙特卡洛随机点蚀数值模型，并通过已有的钢柱压缩试验文献，验证其可靠性。为全面评估点蚀对柱体承载力的影响，文中共建立了1 080个随机点蚀模型，并基于这些模型对柱体承载力开展非线性屈曲分析，研究了边界条件、长细比 ...
郭俊辉 +6 more
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[Expert consensus on the surgical management of pressure injuries (2026 edition)]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiWound Repair Professional Committee of the Chinese Medical Doctor Association.
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