Results 31 to 40 of about 10,467 (165)
Risk, Hazards &Crisis in Public Policy, Volume 16, Issue 2, June 2025.Abstract Prior disaster experiences often provide lessons for communities to respond to new disasters. In informal communities prone to disasters but conditioned within reactive disaster management regimes, residents and Community‐Based Organizations (CBOs) play immense roles in disaster risk reduction and response.
Stephen Kofi Diko +5 more
wiley +1 more source
The study of one-dimensional flow analysis model of the combustor in supersonic combustion experiments [PDF]
, 2003 对公开发表的用于超声速燃烧流场分析的几种一维模型进行了研究，指出了其中存在的问题，研究结果表明：基于实验静压数据的一维模型，若不借助必要的流场测量数据或分析结果，或借助于经验性的处理方法，单靠一维假设，无法获得较为完整的一维流场分析结果。改进后的一维模型降低了数据处理过程中的不确定性，提高了对一般情况的适应能力。用编制的计算程序SSC-2对两组典型的超燃燃烧室壁面静压实验数据进行了演算 ...
俞刚, 张鹏
core
Predictive modeling of the development height of water-conducting fracture zones in mines in Shandong mining area [PDF]
Predicting the development height of the hydraulic fracture zone is vital to safe coal mining. This study first analyzed the development patterns of hydraulic fracture zones under similar mining conditions.
DOU Xuan, LI Ye, XIA Zhicun, XU Dongjing
core +1 more source
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
wiley +1 more source
Studies of the PPDF Chemical Reaction Rate Model for the Numerical Simulation of Nitrogen Oxides [PDF]
, 2016 本文在目前应用广泛的湍流燃烧模拟方法PPDF，即预设概率密度函数的基础上，以混合分数和温度为变量，同时引入时间尺度的考虑，提出了一个NOx计算模型——PPDF化学反应速率模型。在该模型的理论基础上，使用CHEMKIN软件的SENKIN模块，以详细的化学反应机理计算NO的生成速率，并将计算结果拟合建立成数据库。 使用该模型在STAR-CD中计算了三组湍流非预混射流火焰：H2、H2/CO/N2和CH4/H2/N2射流火焰，并与Sandia实验室公布的实验数据进行比较 ...
封颖
core
Influence of ultra-close undercrossing shield on deformation of existing tunnels [PDF]
With continuous development of urban construction in recent years, many Chinese cities have successively developed and increased the construction of urban rail transit projects, and the construction of the metro engineering causes surrounding surface ...
DAI Zhengbin1, 2 , LU Yunlong1, 2
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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
wiley +1 more source
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,研发模式己由传统的经验模式转变为更加严谨的理论-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、
doaj +1 more source
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
doaj
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
wiley +1 more source