Results 21 to 30 of about 11,266 (116)
Jianzhu Gangjiegou Jinzhan, 2012 目前,钢管混凝土结构被大量应用和推广,但其剪切及扭转性能的研究都是从有限元分析或者试验出发,得出了回归公式或者经验公式,缺少纯理论上的指导。对钢管混凝土的抗扭承载力进行了理论研究,得到了抗扭承载力的理论计算公式;然后根据钢管混凝土"统一理论"的思想,得到了抗剪极限强度以及抗剪承载力的理论计算公式;最后与若干试验数据以及已有的研究成果进行了对比,证明了理论计算公式的可行性。
谢先义, 查晓雄
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Police Cloud: Functional modularity in China's cloud public security infrastructure
Regulation &Governance, Volume 20, Issue 1, Page 90-104, January 2026.Abstract Globally, China's Ministry of Public Security has one of the largest appetites and regulatory scopes for new technology use in policing. Using the case study of Police Cloud—a cloud infrastructure project, this paper examines a national wave of cloud migration initiated in Shandong in 2013.
Ausma Bernot
wiley +1 more source
HARBIN GUANGHAN POWER TRANSMISSION CO.,LTD.
Jixie chuandong, 2015 <正>公司简介:哈尔滨广瀚动力传动有限公司是中国船舶重工集团公司第七○三研究所控股子公司,黑龙江省高新技术企业,公司以七○三所舰船动力传动专业为技术依托,拥有强大的设计、研发能力。公司通过长期的技术积累,掌握了高速、重载等核心动力传动技术,形成了一支高水平的研发技术团队,涵盖机、电、液等专业方向,实践经验丰富,研发模式已由传统的经验模式转变为更加严谨的理论一试验相结合模式,精通动力学分析、静力学分析、应力应变分析、流体仿真分析、
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Dianci bileiqi, 2018 通过分析高压电气设施结构法兰与瓷套管连接节点的构造特征,建立了基于瓷柱、法兰弯曲变形和胶装材料挤压变形描述的节点弯曲承载力学模型,然后通过理论推导提出了一个瓷套管与法兰连接等效弯曲刚度的解析公式;最后通过一个500 k V避雷器试验数据对本文提出的公式进行了验证。结果表明:应用本文公式得到结果与试验结果吻合;与我国现行电力设施抗震设计规范公式对比,新建公式计算结果误差为1.91%。本文公式由力学模型直接推导建立,不包含经验系数,能够揭示法兰与瓷套管连接部位的承弯机制,可用于电气设施结构的抗震计算。
高政国, 朱全军, 杨钦, 曹枚根
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New Directions for Child and Adolescent Development, Volume 2026, Issue 1, 2026.Background Working memory updating is crucial in bilingual children′s second language (L2) reading comprehension. A robust updating ability is a cognitive key for children to successfully master L2 reading comprehension. Objective This study is aimed at investigating the effect of updating ability on the L2 Chinese reading comprehension among Uyghur ...
Guangxin Li +3 more
wiley +1 more source
Gongye shui chuli, 1998 测定了聚丙烯酸(PAA) 和丙烯酸/ 甲基丙烯酸-B-羟乙基酯(AA/ HEA) 的特性粘数, 比较了用九个经验式求得的特性粘数差异, 指出了实验体系的Hugg ins 常数k′较大(0. 443～0. 726) 是造成部分计算结果偏差较大的原因, 提出了一个k′取0. 64 的简易一点法公式。用该公式计算的24 个数据中, 相对偏差小于1%的数据为12个, 好于用已知九个公式计算的结果。
王京, 陆婉珍
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World Medical &Health Policy, Volume 17, Issue 4, Page 831-853, December 2025.ABSTRACT This article aims to sort out the meaning of the term “health nationalism,” operationalize this term and analyze this phenomenon in opposition to the cosmopolitan health policy model. Here, health nationalism is treated as a serious obstacle to access to healthcare and a cultural‐ideological barrier to equity in global public health. Two ideal
Piotr Żuk, Paweł Żuk
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Mobilizing fears? How proximity to deportation threat affects political participation
Policy Studies Journal, Volume 53, Issue 4, Page 1138-1151, November 2025.Abstract Policies often provoke political changes, which are collectively known as feedback effects. Studying state variation in immigration policy, scholars have shown that proximity to hostile policy tends to mobilize Latinos. But not every member of the Latino community is likely to perceive the same proximity to anti‐immigrant policies.
Mackenzie Israel‐Trummel +2 more
wiley +1 more source
Jixie chuandong, 1992 本文由闪温准则导出了材料焊合系数的计算公式,经FZG齿轮胶合试验证明该公式的计算误差不大,能够满足工程应用的需要,并据此计算了25Cr2MoVA钢四种典型渗氮工艺的材料焊合系数。
赵少甫, 陈秀玉
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