Results 11 to 20 of about 803,141 (171)
, 2023 特高压变压器发生内部故障时如压力不能及时泄放，极易造成油箱变形甚至爆裂，进而导致燃爆事件。分析了变压器常用的防爆保护装置及其优缺点，提出了一种基于爆破片的新型压力泄放装置，并通过真型燃爆试验和动态等效试验对爆破片型压力泄放装置的有效性进行了验证。试验结果表明：在变压器内部高燃爆能量电弧故障下，爆破片型压力泄放装置动作速度和泄放效率均优于压力释放阀 ...
董弘川, 卢理成
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International Journal of Applied Linguistics, EarlyView.ABSTRACT This study examines multilingual practices in research interviews, focusing on English lexical insertions in Chinese‐language research interviews with teachers of Chinese in Australian secondary schools, and treating these code‐switches as analytically meaningful rather than incidental.
Chengwen Yuan, Tianwei Zhang, Gary Bonar
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There Is Always a Bigger Fish. Determinants of Power Perceptions in Swiss Biodiversity Policy
Policy Studies Journal, EarlyView.ABSTRACT The Advocacy Coalition Framework (ACF) views power as crucial in policy processes, but the nature of coalition power, its determinants, and how to empirically measure it remain understudied. In this article, we use a mixed method approach and social network analysis to explore power relationships in the biodiversity policy subsystem in ...
Alix d'Agostino +2 more
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Facets of Crises: How Problem Indicators and Public Perceptions Affect Policy Change
Policy Studies Journal, EarlyView.ABSTRACT Crises are widely acknowledged as catalysts for policy change. Yet, our understanding of the policy effects of crises remains limited. Why do only some crises lead to major changes, while significant policy changes also occur during seemingly non‐crisis periods?
Constantin Kaplaner +6 more
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Journal of Adolescence, Volume 98, Issue 5, Page 1715-1736, July 2026.ABSTRACT Introduction Following rapid iterations in media technologies, Chinese millennials (born between 1980 and 1995) find themselves in a paradoxical state where digital saturation exists alongside fatigue, making them central practitioners of digital minimalist behavior.
Chao Zhang, Yinze Hao, Jingwen Li
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Enhanced Magnetocaloric Effect in Tb‐Co‐Ni Magnets via Chemical Pressure
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Magnetic refrigeration materials are significantly needed in versatile modern industries, including scientific research, aerospace, and health care, due to their potential applications in gas liquefaction and storage. Herein, a significantly enhanced magnetocaloric effect with a suitable operation temperature range of 53–114 K and a giant ...
Lei Xi +11 more
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, 1979 六十年代中期,美国和加拿大在离心压气机的研究工作中获得了新的突破,他们分别研究成功了单级压比为6～10的离心压气机,从此,高压比离心压气机就成为叶轮机械研究工作中一个很活跃的领域。本文首先介绍高压比离心压气机的发展过程和现状,然后着重对提高离心压气机元件性能和改善设计方法的若干问题进行了讨论 ...
刁正纲, 陈静宜
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Recovering Critical Elements From Wastewater for Battery Materials: A Review
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Driven by global carbon neutrality goals, the transition toward a circular economy and sustainable resource management has become increasingly imperative. Given the indispensable role of battery technologies in modern energy storage systems, strategic elements such as lithium (Li), cobalt (Co), and nickel (Ni)—identified by the European ...
Ting Lei +5 more
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Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Bimodal grain structure (BGS) demonstrates significant potential in synergistically optimizing the strength and plasticity of magnesium alloys. Acquiring the desired BGS consequently became a critical challenge. This study took the Mg‐9Gd‐1Zn‐0.5Zr (wt%, VZ91K) alloy as its subject. From the perspective of BGS formation mechanisms, it suggests
Shuai Yuan +5 more
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Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Biodegradable Zn‐based alloys are promising candidates for temporary implants, yet excessive Zn2+ release during degradation may induce cytotoxicity and adverse tissue responses. In this study, Zn‐xBa alloys (x = 0.1 wt%, 0.5 wt%, 1.0 wt% and 3.0 wt%) were developed to achieve controlled corrosion behaviors with improved biocompatibility.
Liu‐Dang Fang +9 more
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