Results 111 to 120 of about 6,591 (172)

GW4型隔离开关运动学分析与装配方法研究

Gaoya dianqi, 2018
高压隔离开关在电力输送中起着至关重要的作用,对其运动学规律及装配调试特性进行研究具有重要的实践意义。文中以GW4型高压隔离开关为例,首先在分析各连杆几何关系的基础上建立了隔离开关运动学模型。然后利用MATLAB/Simulink软件深入研究各特征参数与隔离开关之间的运动学规律,并探究特征参数对安装调试特性的影响。之后通过将回转支承座与支撑立柱间的4均布孔固定连接改为腰子槽孔连接的方式,对现有产品进行了改进并完善了装配方法。最后在GW4型隔离开关试验平台上进行了试验。试验结果表明 ...
赵洲峰, 周华, 吴锦华, 王文, 周正强, 赵峥, 罗宏建, 黄中华, 方升, 陈立, 魏燕定   +10 more
doaj  

[Preliminary application of domestic single-port serpentine arm robotic surgical system in children's pyeloplasty]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Li Z, Huang Y, Li N, Li M, Song H, Zhang W, Liu C.   +6 more
europepmc   +1 more source

[Recent applications of porous-material-based adsorbents for extracting pesticide residues from environmental and foodstuff samples]. [PDF]

Se Pu
Xu QT, Yu M, Xie C, Cao Y, Mei SR.
europepmc   +1 more source

[Pioneering Application of a Domestically Developed Single-Arm Single-Port Robotic System in Ultra-Remote Telesurgery: A Clinical Report of Two Gynecological Oncology Cases]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Wang Q, Wang Y, DE Q, Cheng G, Yang F, Zheng Y.   +5 more
europepmc   +1 more source

露天矿山开采逐孔爆破技术的应用研究

工程学研究与实用
马小平, 段世岩
semanticscholar   +1 more source

[Effectiveness comparison of anterior cervical discectomy and fusion with zero-profile three-dimensional-printed interbody fusion Cage and titanium plate fusion Cage]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Li Y, Li X, Li B, Gu Y, Yang T, Zhao L, Cui W, Gu S, Wang H.   +8 more
europepmc   +1 more source

[Treatment of root fracture of immature maxillary permanent central incisor combined with impacted supernumerary tooth in the apical region: a case report]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Sun J, Qian H, Wu X, Liu H, Liu Q.
europepmc   +1 more source

[Layered external repair with microsurgery of maxillary central incisor with external cervical resorption]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Ji X, Zhang L, Huang D.
europepmc   +1 more source

漏孔形态对GIS设备微水增长特性的影响

Gaoya dianqi
SF6气体泄漏是GIS设备最常见的故障之一，GIS泄漏发生时通常伴随内部水组分的增长。为了揭示不同漏孔形态对GIS设备微水增长特性的影响，选取了包含简单圆柱孔、台阶孔、锥形孔、直角孔及并排孔等7种漏孔形态，建立数值模型开展了多组分相变输运瞬态模拟。获得了GIS压力下降过程中不同漏孔内外部流场及水组分相变输运动态特性。结果表明，在相同的漏率规模下，漏孔结构越复杂，其出口位置羽流覆盖面积越小，外部冷凝水更容易进入漏孔内部；扩张型漏孔内会产生热力喉道等气动结构，该结构对液相水进入泄漏通道有明显的阻碍作用 ...
樊新鸿, 张正渊, 王永奇, 罗宁, 孔令轩, 王燕   +5 more
doaj  

[PINK1 suppresses colorectal cancer cell growth through epigenetic regulation of histone modifications]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Wang M, Luan S, Fan X, Han D, Zhu Y.
europepmc   +1 more source