Results 11 to 20 of about 18,581 (123)
Assessing safeguards against the illegal wildlife trade on AI platforms
Conservation Biology, EarlyView.Abstract AI platforms, while offering many positive applications, also present new risks to society, including the facilitation of trade in threatened and illegal wildlife. Although these platforms employ safeguards to block harmful or criminal requests, studies show such protections are imperfect and can be easily bypassed.
David L. Roberts, Jason R. C. Nurse
wiley +1 more source
International Journal of Applied Linguistics, EarlyView.ABSTRACT Grounded in social cognitive theory, this study investigated how high‐evidence factors jointly contribute to Chinese‐as‐a‐foreign‐language (CFL) speaking self‐efficacy. Data from 236 CFL learners in Beijing revealed a multifaceted pattern of associations.
Peijian Paul Sun +3 more
wiley +1 more source
Dianci bileiqi, 2022 准确确定杆塔接地体冲击接地电阻对于提高输电线路耐雷水平具有重要的意义。基于有损长线原理的电路理论法，在仿真软件ATP-EMTP中建立接地体冲击散流模型，研究考虑火花效应时接地体冲击接地电阻的有效确定方法。以一接地体在波形为2.6/50μs、幅值为20 kA的雷电流作用下为例进行冲击特性仿真分析，结果表明，采用迭代修正法修正火花放电区域接地体半径，得到的冲击接地电阻更准确。本研究所得结论可为杆塔接地工程改造及优化设计提供有效参考依据。
杨秋玉, 郑小刚
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Risk, Hazards &Crisis in Public Policy, Volume 17, Issue 4, December 2026.ABSTRACT Public communication campaigns on environmental issues rely on economic and ecological arguments, assuming that the recognition of messages is sufficient to produce adjustments in practices. Drought constitutes a specific case of this problem, as a creeping crisis: a slow‐onset hazard whose effects remain weakly visible in everyday life.
Sébastien Rouquette, Inès Bellahcene
wiley +1 more source
Sexuality, Gender &Policy, Volume 9, Issue 4, November 2026.ABSTRACT This study explores how 2SLGBTQ+ youth in Alberta, Canada—the country's most Conservative province—mobilize queer joy as a form of resistance amid rising anti‐queer and anti‐trans policies under a settler colonial, cisheteropatriarchal regime. Drawing from youth‐produced collages, we demonstrate that this visual arts‐based participatory method
JJ Wright, Gillian Robinson
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Dianci bileiqi, 2020 接地体短路温升是校核接地材料短路耐受性能的重要指标,但目前的短路温升计算方法主要在无散流、无传热的空气环境中进行,校核结果未能充分反映接地导体在土壤中的温升特性。笔者采用电磁-温度耦合有限元计算方法模拟短路电流作用下接地导体的散流及地中温升过程。研究发现接地体轴向地中短路温升分布具有两端高中间低的特点,且由于土壤发热与本体发热共同作用,接地体两端温升显著高于空气环境短路温升。同时,土壤电阻率增大及趋肤效应会进一步加剧端部温升。随后结合侵蚀算法模拟了接地导体的过热失效 ...
吴泳聪, 阮江军
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International Journal of Applied Linguistics, Volume 36, Issue 4, Page 3294-3306, November 2026.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
wiley +1 more source
Gaoya dianqi, 2017 接地电阻是衡量接地体性能的重要指标。为降低方框带射线型接地体冲击接地电阻,文中采用模拟试验方法,在双层土壤环境下,研究水平分支对不同接地体冲击特性与散流分布的影响。结果表明:对于单根水平接地体,分支呈120°三段式结构的改型接地体的降阻效果最优;相较于简单方框带射线型接地体,添加水平分支,且分支呈120°的三段式结构可减小电感效应,使其分支端部的流散电流增大,火花放电更为强烈,使得平均降阻百分比可达10%。增加水平分支有利于降低接地体冲击接地电阻,需根据具体接地体尺寸改进。
肖磊石 +5 more
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Beyond Evidence: How Framing Shapes Public Health Policies During Health Crises
Policy Studies Journal, Volume 54, Issue 4, November 2026.ABSTRACT Does the level of evidence that accompanies policy action depend on how a problem is framed, and on who frames it? This article examines these questions in the context of health crises. Bridging sociological and equivalence framing theories, it treats frames as preexisting interpretive schemes shared within communities of actors, whose ...
Antoine Claude Lemor, Eric Montpetit
wiley +1 more source
Dianci bileiqi, 2014 为了研究垂直接地体发生故障后对暂态接地阻抗的影响,笔者以接地体表面有细缝和局部腐蚀两种状态模拟故障接地体。运用时域有限差分（FDTD）法,通过Matlab编程实现对垂直接地体发生不同故障类型和故障点到接地体入地端的距离与暂态接地阻抗的变化规律的分析。分析结果表明:垂直接地体表面有细缝和局部腐蚀时暂态阻抗大于正常时的值;故障点和垂直接地体入地端之间的距离与暂态阻抗值的变化量成反比关系;在雷电流快速泄流的过程中故障接地体暂态阻抗的变化最显著。研究结论为防雷接地设计,接地体腐蚀状态检测提供了理论依据和实践参考。
邓慧都 +5 more
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