Results 81 to 90 of about 645,131 (154)
钛酸铜钙改性硅橡胶对500kV直流电缆接头优化设计关键控制参数的改善研究
Gaoya dianqi, 2023 采用硅橡胶作为超高压直流电缆接头的增强绝缘，在接头结构设计中需要解决硅橡胶与电缆绝缘的电导率配合和界面问题。文中利用钛酸铜钙纳米纤维（CCTO NFs）对硅橡胶进行非线性电导率的改性，对改性硅橡胶和交联聚乙烯（XLPE）组成的双层介质界面进行了直流击穿特性试验，以改性硅橡胶以及界面的特性参数为控制条件对改性硅橡胶500 kV直流电缆接头进行了优化设计分析。研究表明，CCTO NFs大大提高了硅橡胶的电导率非线性系数，CCTO改性硅橡胶的直流击穿强度随CCTO NFs体积分数的增加而下降 ...
刘宗喜 +3 more
doaj
World Medical &Health Policy, Volume 18, Issue 3, September 2026.ABSTRACT The integration of artificial intelligence (AI) in healthcare is rapidly evolving, offering immense potential to transform service delivery, diagnostics, and health systems governance. However, Sub‐Saharan Africa faces significant readiness challenges due to limited infrastructure, capacity gaps, and fragmented digital strategies.
Said Baadel +3 more
wiley +1 more source
四川大学学报. 自然科学版, 1979 引言自从Baiocch在研究水坝渗流的浸润面时提出了一种Baiocchi变换,一类自由边界问题的研究有了迅速的进展。最近,张恭庆,姜礼尚研究了底水油田的稳态水锥问题,得到了令人满意的结果。本文将研究另一类自由边界问题,它既是的那类自由边界问题的发展又具有本质的差异,因为在自由界面的两测速度势都决非常量(前一类问题的速度势在自由界面的某一侧是常量).
白东华, 孙顺华
doaj
[Research progress of interfacial tissue engineering in rotator cuff repair]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2021 He S, Qin T.
europepmc +1 more source
Ten rules for using evidence to guide ecosystem restoration
Journal of Applied Ecology, Volume 63, Issue 9, September 2026.These 10 rules provide a guidance framework to put into action the best available evidence, ensuring that restoration benefits people and nature. We highlight the importance of knowledge brokering systems in this process, effectively informed and empowered to fulfil their emerging role across existing institutions and new ones dedicated to Science ...
Rafael B. Chaves +12 more
wiley +1 more source
[Effects of material interfaces on orientation and function of fibrinogen]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2021 Chen Y, Ren J, Wu J, Fang Y.
europepmc +1 more source
Journal of Sociolinguistics, Volume 30, Issue 4, Page 452-465, September 2026.ABSTRACT This study investigates how ordinary Taiwanese netizens perform linguistic authority by policing others’ use of Mainland Chinese expressions in everyday online interactions not originally intended to be political and how such policing is subsequently supported, resisted, or (de)legitimized in the context of Taiwan–China relations. Three orders
Hsi‐Yao Su
wiley +1 more source
, 1983 本文以作者在文[1]中所建立的基本方程为出发点,采用Poincaré-Lighthill-郭永怀方法和约化摄动法,考察了两个界面孤立波之间的迎撞的三阶近似解,求出了碰撞时的最大波幅和碰撞后的非均匀相移,发现在相互作用之后,向上凸的界面孤立波相对于传播方向向后倾斜 ...
戴世强
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Dianci bileiqi为解决一体浇注式盆式绝缘子环氧树脂浇注部分与中心导体之间存在的界面剥离问题，首先通过环氧浇注试样拉伸性能测试得到环氧树脂与金属界面粘接强度范围为45.276～69.401 MPa，而对盆式绝缘子固化结束后受力情况进行仿真计算后发现，模拟常规工艺制备的盆式绝缘子环氧浇注部分与中心导体之间的最大拉应力为386.5 MPa，远高于实测的界面粘接强度，揭示了拉应力引发界面失效是导致界面剥离现象的本质原因。紧接着，在仿真模型中将环氧部分与金属法兰连接模式从粘接式改为装配式，结果显示，界面最大拉应力降至35 MPa。
赵晔 +4 more
doaj
Jixie chuandong, 2015 描述了求解平面并联机器人工作空间边界的一种新方法。通过对平面并联机器人的分析,建立了系统的运动方程,以方程逆解存在为条件,沿工作空间边界搜索边界点。将搜索到的所有边界点在Matlab中进行仿真出图,图形结果与用几何方法得到的边界完全一致。利用此方法可以很快得到较准确、清晰的工作空间边界。
宋亚楠, 崔建昆
doaj +1 more source