Results 71 to 80 of about 987 (115)

[Research advances on the mechanism and clinical application of cold atmospheric plasma in promoting wound healing]. [PDF]

open access: yesZhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Zhao ZY, Cai CH, Liu H, Liu SW, Wang XG.
europepmc   +1 more source

新能源送出系统基于SVG缺相控制的暂态过电压抑制方法

open access: yesGaoya dianqi
针对新能源集中送出系统的人工接地短路试验和仿真结果表明,风电、光伏汇集线路发生单相瞬时接地故障后,系统在故障相分闸至重合期间存在暂态过电压,并已成为制约新能源送出能力的主要因素之一。文中基于对典型新能源集中送出工程暂态过电压的仿真计算和人工接地短路试验结果,分析了汇集线路故障发生及清除后暂态过电压的阶段性特征及其产生机制;研究了静止无功发生器(static var generator,SVG)在原有控制策略下的无功响应情况与系统过电压情况的关联性,分析了原有策略的缺陷 ...
王晨星   +4 more
doaj  

[Practical guideline on the prevention and management of diabetic foot in China (Ⅰ)]. [PDF]

open access: yesZhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Chinese Burn Association   +2 more
europepmc   +1 more source

智能电网技术国际发展态势分析 [PDF]

open access: yes, 2010
张军, 李桂菊, 金波, 陈伟
core  

脱气时间对电缆绝缘中交联副产物含量和直流特性的影响

open access: yesGaoya dianqi
直流电缆的交联过程会在绝缘中产生大量副产物,影响电缆的电气性能。通常采用脱气工艺脱去电缆绝缘中的交联副产物,但随着直流电缆电压等级的升高,绝缘厚度进一步增加,脱除副产物变的越来越困难。文中以不同脱气时间的500 kV高压直流XLPE电缆绝缘切片试样为研究对象,确定了交联副产物相对含量的半定量分析方法,研究了脱气过程电缆绝缘中交联副产物含量的变化和副产物对XLPE电缆绝缘直流性能的影响。结果表明,脱气可以减少电缆绝缘中的副产物,但无法将副产物完全脱除。并且在整个脱气过程中,中绝缘处副产物含量最多 ...
白健   +7 more
doaj  

[Efficacy of the far lateral Key-hole technique in the treatment of central cervical disc herniation]. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban
Meng Z   +6 more
europepmc   +1 more source

[The management of infantile laryngeal cysts]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Lou F, Ming C, Gao Y, Zu J, Ma J.
europepmc   +1 more source

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