Results 41 to 50 of about 11,690 (165)
China's Eco‐Civilisation, Climate Leviathan, and Hobbesian Energy Transition
Antipode, Volume 57, Issue 3, Page 830-861, May 2025.Abstract Scholars have hitherto tended to theorise China's ecological civilisation project either as a form of environmental authoritarianism or as a vision of eco‐socialism. This paper contributes to the conversation by conducting a textual analysis of Chinese scholarly discussions on eco‐civilisation.
David Chen
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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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, 2013 从宇宙论与计算之间的关系方面探讨明清之际中国天文学转型。中国古代天文学中宇宙论与计算是相互脱节的,这不仅体现在历法运算与狭义的宇宙论模型之间,还体现在历算与广义的宇宙论之间。明清之际,西方天文学传入中国。在此影响下,明清天文学家对中国天文学的宇宙论、计算之间的关系进行了重构,接受了西方天文学的以几何模型为基础的计算方法,以及藉助于几何及逻辑方法而展开的说理体系,宇宙论模型和计算方法得以融会。但是,这一转型只停留在宇宙论模型这一层面上 ...
王广超
core
Development of overlying strata collapse and water-conducting fractured zone in shallow coal seams mining [PDF]
Shallow underground mining of coal seams has significant impacts on the overlying rock formations, not only exacerbating surface subsidence but also potentially leading to surface and groundwater loss, thereby affecting the development and safety of the ...
Hui SHANG +4 more
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A critical review of the significance of elitism and pluralism to disaster risk management
Risk, Hazards &Crisis in Public Policy, Volume 16, Issue 1, March 2025.Abstract Disasters and disaster risks are social phenomena that take place in a political space shaped by different political ideologies. Despite this connection, the field of disaster risk management has been developed without a deliberate incorporation of political theories.
Paul Chipangura, Dewald Van Niekerk
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Undrained deformation characteristic of saturated soft clay under traffic loading [PDF]
Previous studies on the undrained deformation behavior of saturated soft clay under traffic loading usually ignored the effect of cyclic confining pressure.
Lei SUN, Yuke WANG
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Review of Policy Research, Volume 42, Issue 2, Page 393-422, March 2025.Abstract Resolving policy potential disparities and coordinating among multiple stakeholders are essential components of effective policy implementation. Nevertheless, there has been limited scholarly attention to the causes and remedies for grassroots implementation challenges, particularly through the lens of new collective action theory and the ...
Chen Ran +3 more
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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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