[Binary encryption comprehensive experiment based on agarose gel electrophoresis]. [PDF]
Se PuDuan JW +7 more
europepmc +1 more source
Gaoya dianqi隔离开关作为GIS的重要组成部件，如果有金属微粒等异物存在，将对隔离开关的绝缘性能产生影响。因此，计算GIS隔离开关带金属微粒时的电场分布至关重要。文中采用三维有限元分析计算方法对隔离开关无金属微粒和不同位置带金属微粒两种工况进行了电场强度计算。对比计算结果可知，屏蔽罩表面附着金属微粒所产生的电场畸变最为严重，绝缘拉杆表面和SF6气体中的金属微粒也会大大增加场强值，导致隔离开关极易放电。基于电场分析所得的计算结果，文中对隔离开关的生产和安装提出了合理的建议。
沈丰慧, 高洋, 陈宇
doaj
[Clinical application effects of the "three-source and four-line method" in the design and harvest of anterolateral lower leg perforator flaps]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiWu CL +9 more
europepmc +1 more source
Gaoya dianqi电力工业上GIS（gas insulated switchgear）隔离开关的多种机械故障多是由传动机构及导电部结构应力变化导致，而这种应力变化的早期体现形式主要是卡涩缺陷。对GIS隔离开关卡涩缺陷的识别及量化对避免设备发生严重故障具有重要意义。然而，GIS隔离开关面临因工业现场开关机械状态的离散化导致的难以对卡涩缺陷进行识别和量化的问题，限制了运维人员对GIS隔离开关机械状态的感知能力与故障预警能力。文中以GIS隔离开关正常机械状态下的驱动电机功率曲线作为标准曲线，采用多窗口斜率的特征点识别方法 ...
柯艳国 +6 more
doaj
[Removal of a fishbone foreign body from the root of the tongue using a translingual ventral approach: case report]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiLi C, Zhao S, Li Y, Han B, Zhang B.
europepmc +1 more source
[Simulation analysis of adaptability of large airborne negative pressure isolation cabin to aviation conditions]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiGuo L +7 more
europepmc +1 more source
[Development of a machine learning-based ionization efficiency prediction model for per- and polyfluoroalkyl substances and its application in semi-quantitative analysis]. [PDF]
Se PuSun SZ +6 more
europepmc +1 more source
Gaoya dianqi针对户外高压隔离开关常受到外界环境等外力的作用而造成合闸失败的问题，设计了一种新型抗干扰高压隔离开关。首先通过对传统的三柱水平旋转式高压隔离开关的结构组成和工作原理进行分析，得出了造成高压隔离开关合闸过程中导电杆提前翻转的原因。然后结合槽轮间隙机构和四连杆阻尼机构的运动特点，给出了抗干扰隔离开关的设计方案与三维几何模型的建立。最后通过数值仿真对四连杆阻尼机构中弹簧的安装位置进行了确定，并验证了设计目标要求。结果表明：该结构可以有效解决传统高压开关导电杆受外力的干扰，可为隔离开关结构的优化设计提供参考依据。
孙龙勇 +9 more
doaj
[Progress in microsurgical repair and reconstruction techniques and development of microsurgery in China]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiGu L.
europepmc +1 more source
[Clinical symptoms and cone beam computed tomography imaging analysis of patients with temporomandibular joint osteoarthritis with chewing side preference before and after treatment of stabilization splint]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiLi X +7 more
europepmc +1 more source