Results 21 to 30 of about 1,662 (103)
Investigating the Origin of Topological‐Hall‐Like Resistivity in Zn‐Doped Mn2Sb Ferrimagnet
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Skyrmions and other chiral spin textures have been extensively studied as potential building blocks for novel spintronic devices. Hall‐resistivity anomalies that deviate from magnetization scaling, known as the topological Hall effect, have been widely employed as evidence for the presence of chiral spin textures in magnetic materials. However,
BoCheng Yu +9 more
wiley +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Soft‐magnetic materials (SMMs) are indispensable for electrification and sustainable energy systems, yet their inherent mechanical fragility fundamentally limits applications under severe mechanical stresses. Enhancing the yield strength of SMMs is essential to prevent the degradation in magnetic performance and failure from plastic ...
Nairan Wang +6 more
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People and Nature, Volume 8, Issue 2, Page 270-282, February 2026.Abstract Chinese consumer demand for ivory threatens vulnerable African elephant populations, despite long‐standing efforts to combat the illegal wildlife trade. Behavioural science approaches have been proposed to address these systemic behaviours. However, their robust use remains uncommon in demand management interventions.
Molly R. C. Brown +3 more
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People and Nature, Volume 7, Issue 11, Page 2700-2713, November 2025.Abstract Large old trees are important ecological entities in human settlements, providing cultural values and ecological services that are threatened by current and future changes in global climate, land use and disturbance regimes. Some studies suggest incorporating social and cultural significance into the conservation of large old trees.
Zhuo Cheng +5 more
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Jianzhu Gangjiegou Jinzhan, 2022 开展高温后水冷Q690高强钢的材性试验研究，明确高温对Q690高强钢力学性能的影响规律。在考虑材料非线性和几何非线性的基础上，将高温后水冷Q690高强钢的材性引入数值分析模型，在ABAQUS有限元软件中实现考虑屈曲后性能的Q690高强钢板梁的火灾后剩余承载性能分析。研究结果表明：暴露温度700 ℃为Q690高强钢力学性能变化的分界点。随着暴露温度的升高，fy和fu都表现出先减小后增大的规律。暴露温度对Q690高强钢弹性模量的影响较小。当暴露温度为800 ℃和900 ℃时 ...
华建民 +5 more
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Integrative Conservation, Volume 4, Issue 3, Page 476-490, September 2025.The leaf functional traits of angiosperms and gymnosperms in mountain ecosystems significantly influence phyllosphere fungal diversity. These traits are critical for understanding fungal stress resistance and elevational adaptation, which aids in predicting plant responses to climate change.
Xiaocheng Yu +7 more
wiley +1 more source
Religious uses shape the selection and distribution of Chinese Buddhist tree species
People and Nature, Volume 7, Issue 9, Page 2094-2105, September 2025.Abstract As a widely disseminated world religion, Buddhism's selection of religious species may profoundly impact candidate species distribution. This study sampled 246 Chinese temples covering diverse regions to investigate the selection modes of Buddhist tree species (BTS) and the alien religion's influence on Chinese indigenous biodiversity and ...
Cheng Jin +8 more
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Jianzhu Gangjiegou Jinzhan, 2011 为了研究实腹式钢骨混凝土异形柱在偏心荷载下的破坏机理、受力性能及变形能力。本文通过对12个十字形钢骨混凝土异形柱进行偏心受压承载力的试验研究,观察了含钢率和偏心距不同情况下的试件受力过程和破坏形态,分析了钢骨混凝土异形柱的荷载-位移曲线、承载力、位移延性等力学性能。通过试验,明确了钢骨混凝土异形柱的破坏特征,含钢率对承载力的影响。试验结果表明,含钢率越大,构件的承载力及延性也会相应增加,钢骨混凝土异形柱具有较高的承载能力和较好的延性。
刁晓征, 徐亚丰
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Jianzhu Gangjiegou Jinzhan, 2021 在大跨度空间结构中,采用变高度变宽度加劲箱形截面形式的大跨度钢箱梁的力学行为非常复杂,除采用有限元计算分析之外,有必要对其承载性能进行试验研究,特别是足尺试验更能获取其整体承载能力和局部变形特性。为研究珠海国际会展中心二期屋面变截面加劲骨架式钢箱梁在设计荷载下的承载性能,首次提出一种合理简明且成本低廉的大跨度钢箱梁静载试验用横卧预应力加载方案,采用有限元计算结果对加载方案进行论证,成功进行大跨度足尺钢箱梁加载至设计荷载的承载力试验。试验结果表明,在设计荷载下钢箱梁的应力及变形均满足承载要求 ...
周进兵, 周安全, 徐余凌, 刘卓
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Jianzhu Gangjiegou Jinzhan, 2023 为研究钢管混凝土加劲环管板节点在轴向拉力作用下的受力性能，开展了3个节点试件的单调加载试验，分别得到了管板节点加强前后的荷载-位移曲线和破坏模式。试验结果表明：SPR节点在单调荷载作用下主管和加劲环发生局部屈曲，表现为延性破坏；CFT节点在荷载作用下主管壁发生剪切破坏，荷载-位移曲线没有明显的屈服段，表现为脆性破坏；CFTR节点在荷载作用下，连接板处加劲环发生剪切破坏，同时加劲环局部V形屈曲；加劲环能够明显提高管板节点的承载力，同时改善节点的塑性性能；相较于主管外设加劲环 ...
王宇航, 王光钊, 周绪红, 王康
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