Results 51 to 60 of about 20,406 (144)
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The stability of aqueous Zn2+ batteries is severely hindered by parasitic reactions at the Zn anode/electrolyte interface. Herein, itaconic acid (IA) is introduced as an effective electrolyte additive to achieve a highly stable zinc anode. Remarkably, IA concurrently modulates both the zinc anode/electrolyte interfacial structure and the Zn2 ...
Chenggang Wang +5 more
wiley +1 more source
Shiyou jixie, 2014 弹性爪机构是海上完井滑套开关工具中最重要的部件，其力学性能稳定性对于作业成败至关重要。基于受力分析和有限元模拟，建立开关工具弹性爪力学理论模型和三维有限元分析模型，研究弹性爪结构应力分布与作业性能。基于受力理论分析可知，弹性爪机构最大轴向拉力为4 116 N，最大应力为675 MPa；基于有限元模拟计算，弹性爪机构最大轴向拉力为3 924 N，最大应力747 MPa，弹性爪结构强度满足要求。功能试验结果表明，理论计算方法存在一定的误差，有限元模拟结果相对比较精确和可靠 ...
刘传刚 +4 more
doaj
Jianzhu Gangjiegou Jinzhan, 2021 冷弯薄壁型钢组合墙体主要由冷弯薄壁型钢骨架和外敷面板组成,结构轻巧,绿色环保,多用于中低层建筑,一般在施工现场拼装完成。为提升墙体的施工速度和安装效率,在墙体四周增设焊接刚性边框,提出一种新型装配式刚边框-冷弯薄壁型钢骨架组合墙体,该墙体在工厂预制完成,现场采用螺栓与周围构件连接。建立有限元模型分析面板类型、斜撑、螺钉间距、刚边框和洞口对该新型墙体受力性能的影响,提出了承载力设计方法。研究结果表明:增设斜撑能提升墙体骨架的抗侧刚度以及石膏板覆面墙体的受剪性能 ...
马杰, 王卫永, 邢永辉, 丁勇
doaj
The Role of Technology Standards in Strategic Hedging
Asian Politics &Policy, Volume 18, Issue 2, April 2026.ABSTRACT This article argues that technology standards provide Southeast Asian states with a distinct mechanism for hedging amid intensifying US–China technological rivalry. Traditional hedging strategies emphasizing economic engagement without political alignment are increasingly constrained by the weaponization of technological interdependence ...
Darren J. Lim, Anthea Roberts
wiley +1 more source
People and Nature, Volume 8, Issue 3, Page 741-753, March 2026.Abstract Currently, scholarship on education to foster connectedness with nature primarily focuses on children. As adults likewise face the disconnection from nature and play a key role in influencing children, it is important to understand how they perceive, engage in, and benefit from relevant programmes.
Xiaoxue Chen, Zuyi Lyu, Junxi Qian
wiley +1 more source
Policy &Internet, Volume 18, Issue 1, March 2026.ABSTRACT This article investigates how TikTok Shop reproduces the e‐commerce model of Douyin Shop against a backdrop of divergent regulatory challenges and geopolitical distrust. One of the strategic changes we observe in TikTok Shop is the shift of consumer goods suppliers from local merchants to China‐based sellers.
Shuaishuai Wang, Jing Meng, Yitong Li
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2018 为研究低屈服点钢材LY100在反复拉力作用下的力学性能,设计LY100钢与Q345钢或Q235钢焊接连接的材性试件,共进行4组18个材性试件的单调和反复受拉加载试验研究。获得6种不同加载制度下试件的荷载-位移曲线、应力-应变曲线、滞回性能、超低周疲劳破坏机理以及延性特征等。研究结果表明,焊接接头对试件的超低周疲劳性能有不利影响,焊接接头使LY100钢材力学性能的稳定性和延性变差;LY100钢与Q345钢或Q235钢焊接后,材性试件的强度提高但延性下降;反复拉力作用下,带有焊接接头的材性试件呈现强度硬化 ...
南子森, 李海锋, 罗俊, 孙伟
doaj
Jianzhu Gangjiegou Jinzhan, 2020 为了研究K形节点主管变径加强连接在大跨度钢管结构中的受力性能,采用有限元软件ABAQUS对K形变径加强节点进行了3种增强模式的承载力和滞回性能的研究:增加管径及壁厚、整体只增加管径和整体增加管径及壁厚,通过比较对K形变径加强节点的受力性能作出评价;并结合公式法的计算结果,分析产生误差的原因。研究结果表明,K形变径加强节点的承载能力明显优于普通节点的承载能力,具有较好的滞回曲线和骨架曲线,表现出良好的抗震性能,研究结果可为工程设计提供参考依据。
季荣华 +4 more
doaj
Jianzhu Gangjiegou Jinzhan, 2021 为了研究新型冷弯薄壁型钢板剪力墙的抗侧性能,以C形+U形龙骨抱合的形式作为剪力墙试件的边柱截面形式,并在边柱之间设置薄钢板,共设计了两种不同宽度的剪力墙试件,对两种剪力墙试件均进行了单调加载和低周往复加载试验。通过试验得到了新型冷弯薄壁型钢板剪力墙在各阶段的荷载及位移特征值、荷载-位移曲线、骨架曲线及破坏形态,并对结构的破坏特征、耗能能力、刚度及承载力退化进行了分析。试验结果表明:新型冷弯薄壁型钢板剪力墙通过边柱之间的薄钢板受力形成钢拉力带与边柱一起共同承受水平荷载,表现出良好的抗侧性能 ...
石宇 +5 more
doaj
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The detection of volatile organic compounds (VOCs) holds significant implications in environmental monitoring and disease diagnosis. Traditional gas detection technologies are constrained by complex operation and high cost, thereby failing to satisfy real‐time detection demands.
Yuening Wang +11 more
wiley +1 more source