Dianci bileiqi电容式电压互感器（CVT）作为重要的一次在线监测设备，在超特高压电力系统中得到了广泛的应用。通过CVT的监测过电压波形，可为系统的故障定位和排查提供重要依据。然而，由于CVT的设计原则主要面向工频电压测量，在测量宽频带的雷电过电压时，内部动态元件及非线性元件导致测量波形的畸变，给故障分析带来了巨大的挑战。本文以某500 kV交流线路发生的非常规过电压录波为典型案例，根据实际参数开展了雷击形式推断分析，研究了在雷电过电压下CVT本身录波产生的畸变以及其自身产生的铁磁谐振过程 ...
郭桐玮 +7 more
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[Research progress on external cervical resorption]. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue BanChen R +5 more
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[Diabetic Charcot neuroarthropathy initially misdiagnosed as rheumatoid arthritis and gout: A case report]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanGu J, Li X, Zhao J, Mu R.
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[Comparison of effectiveness of multiple metatarsal osteotomy and first metatarsophalangeal arthrodesis for severe metatarsal adductus hallux valgus deformity]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiLan S, Li X, Xu X, Zhu Y.
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[Effectiveness analysis of tibial nerve transection with epineurial suture and division of common plantar digital nerve branches in treatment of congenital macrodactyly in children]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiLi D +6 more
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[First metatarsophalangeal joint arthrodesis for severe hallux valgus deformity]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZhu Y, Xu X.
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[Comparative study on effectiveness of the fourth-generation minimally invasive technique and Chevron osteotomy in treatment of hallux valgus]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiWang Q, Wang J, Ji D, Lin T, Zhao H.
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[Effectiveness of orthopedic surgery for 247 patients with moderate and severe hallux valgus]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZhang G +7 more
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[Comprehensive considerations for the diagnosis, treatment, and management of osteogenesis imperfecta]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiLyu XH, Dong J.
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Zhongshan Daxue xuebao. Yixue kexue ban, 1989 为了检查人染色体比啮齿类动物染色体更为稳定的假设, 我们比较了人和叙利亚地鼠胚胎肺上皮细胞对诱导性细胞毒性, 染色体畸变和姐妹染色体交换( SC E ) 的敏感性。接种细胞一天后, 用不同剂量乙基亚硝基脉( EN U ) 处理2 小时, 然后用标准法检查其染色体畸变和S C E 率, 用细胞计数法测定细胞毒性。染色体 畸变和S C E 率均表明清楚的剂量依赖关系, 而且在地鼠细胞的发生率明显高于人细胞, 但两种细胞表明相同的细胞毒性反应 ...
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