Results 71 to 80 of about 2,696 (125)

[The clinical study of azacitidine and lenalidomide combination in myelodysplastic neoplasm patients with TP53 mutations]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
Yan X   +8 more
europepmc   +1 more source

基于KL-VMD的架空线路雷击故障识别

open access: yesDianci bileiqi
当架空线路遭受雷击时,故障行波中存在丰富的故障信息,从暂态分量中准确提取特征量并分类是雷击故障识别的核心。提取过程中会存在模态混叠、最优小波基问题,同时雷击距离、落雷点与短路点不一致也会影响识别效果。针对上述问题,本研究提出了一种KL散度(Kullback-Leibler divergence)改进变分模态分解(Variational Mode decomposition,VMD)的雷击故障识别方法。依据实际故障搭建了220 kV架空线路模型,模拟绕击、反击和短路场景,选取三相电压进行凯伦贝尔 ...
刘举成   +6 more
doaj  

[Research progress in surgical treatment of calcaneal fracture malunions]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Ji D, Wang Q, Zhao H.
europepmc   +1 more source

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