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Review of Policy Research, Volume 43, Issue 2, March 2026.ABSTRACT This study examines the paradoxical relationship between policy learning and capacity: governments need certain capacities to learn effectively, yet these same capacities often emerge from previous learning experiences. Through a comparative analysis of Hong Kong and Singapore's responses to SARS and COVID‐19, we demonstrate how policy ...
Shubham Sharma, Xun Wu, Gleb Papyshev
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Rare earth elements (REEs) play an irreplaceable role in modern technology and industry. However, due to the highly similar physicochemical properties among REEs, their separation remains a significant challenge. Additionally, REEs often exist in low‐concentration solutions, making efficient REE recovery an urgent task.
Miao‐Miao Huang +6 more
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Jianzhu Gangjiegou Jinzhan大跨度钢结构空间造型丰富，施工阶段结构的传力路径与最不利受力位置动态变化。为解决施工过程结构分析与安全复核时建模计算流程繁琐的问题，基于AutoCAD与ANSYS软件开发了大跨度钢结构一键式建模、计算与结果读取的插件。该插件采用C#语言调用AutoCAD. NET框架，读取并输出大跨度钢结构图纸文件中的模型信息，自动生成结构有限元建模、计算与结果读取的APDL命令流，可用于大跨度钢结构施工过程的数值模拟与安全评估。以某单层球面网壳结构为例验证了所开发的大跨度钢结构建模分析插件的有效性 ...
胡鹏华 +6 more
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Regulating negative parameters of metacomposites is mainly limited by their unclear mechanisms, which affects their practical applications in new sensing, communication, electromagnetic (EM) protection and other fields. This work proposes a dual‐functional competitive design strategy based on the waste corncob‐derived carbon/polyaniline ...
Qiuyun Yang +4 more
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Jianzhu Gangjiegou Jinzhan, 2018 采用基于有限元理论开发的ANSYS软件建立了张弦梁数值分析模型,按温度增量法对其火灾历程中的力学反应进行分析。讨论了在升温历程中,温度场非均匀性、荷载比、垂跨比、火源半径、火源位置以及支座约束对张弦梁上弦钢梁及下弦预应力索力学特征的影响以及跨中挠度的变化历程。得出以下结论:随着温度分布非均匀性的减小,在升温历程中,上弦钢梁强度应力历程下降速率增大,而稳定应力呈先增加后下降趋势,下弦索应力变化很小;随着荷载比增大,结构临界温度降低,结构跨中挠度增长速率也变大;随着垂跨比的增大,结构受火失效截面位置发生改变,
张浩, 杜咏, 盛红梅, 王惠蕾
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Achieving Transboundary Water Security Through Water Innovations: A Framework and Cases
World Water Policy, Volume 12, Issue 1, February 2026.ABSTRACT Alternative sources of freshwater, provided by various innovations, have long been available to countries facing acute water stress. We hypothesize that avoiding and/or resolving conflict with neighbors—caused by the uncertainty of continued access to shared surface water and groundwater sources—is another driver of innovation adoption ...
David Lewis Feldman
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Jianzhu Gangjiegou Jinzhan大跨度异形空间网架结构在大型公共建筑项目中广泛应用，但该类结构存在大量球形构件，传统全站仪监测的测量精度和效率较低，因此提出一种基于激光点云的大跨度异形空间网架球节点中心点坐标高效自动检测方法。利用三维激光扫描仪获取结构成形态的钢结构屋盖点云数据，然后对点云进行降噪处理，基于深化设计模型并根据后续工序的精度要求设置空间域，提取目标点云，最后采用编程算法对焊接球节点的中心点坐标实现自动化批量提取。为验证拟合球体中心点精度，对比了深化设计模型球节点与点云重构球节点的半径 ...
童宇超 +5 more
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Dianci bileiqi, 2021 安全性评估在架空线路建设过程中是不可或缺的,而跨步电压作为安全性指标显得尤为重要。为此研究了配电线路直埋式水泥杆遭受雷击时的暂态接地特性:首先通过ATP-EMTP电磁暂态软件搭建配电线路仿真计算模型,计算不同幅值的雷电流雷击杆塔时的入地电流;其次结合两种跨步电压安全限值判据,通过CDEGS软件搭建接地仿真计算模型,计算不同入地电流及土壤电阻率情况下配电杆塔周围的跨步电压及安全距离,得到如下变化规律:1)杆塔附近跨步电压随雷电流增大而增大,且在不同土壤电阻率下增加的程度不同。2)雷电流较小的情况下 ...
刘致君 +4 more
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World Water Policy, Volume 12, Issue 1, February 2026.ABSTRACT This paper examines the rise and collapse of the 2021 United Arab Emirates (UAE)–Israel–Jordan Water‐for‐Energy Deal, a landmark initiative that sought to exchange Jordanian solar energy for Israeli desalinated water. Presented as a breakthrough in regional cooperation and environmental peacebuilding, the agreement was brokered under the ...
Majed Abu‐Zreig, Hussam Hussein
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Jianzhu Gangjiegou Jinzhan, 2004 近十年来,网架和空间桁架结构在造船工业厂房屋盖中得到了较广泛的应用。自1992年以来,随着造船船体分段吨位 的增加,原有的船体车间、装焊车间在技术改造中均朝着大跨度、大柱距、大吨位吊车的方向发展。目前已建成的最大跨 度的网架结构工业厂房为70m,吊车吨位为160T;空间桁架最大跨度为48m,吊车吨位为150T。本文对网架和空间桁架 结构这两种体系在造船工业厂房中的应用和发展作了较全面的回顾和综述。
楼国山
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