Results 51 to 60 of about 21,249 (196)
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
wiley +1 more source
Gaoya dianqi, 2018 高频变压器在提升电能传输效率的同时,也会加速油纸绝缘系统缺陷的劣化进程。为研究油纸绝缘系统在高频电压下的劣化特性,采用柱板模型模拟油纸绝缘的沿面放电缺陷,搭建高频局部放电试验平台,在10、20、30 k Hz电压下采用恒压法进行多组局部放电试验。利用摄像机和罗氏线圈分别记录试验现象和放电信号,分析高频电压下局部放电图谱和产气特性,并与工频局部放电试验的结果进行对比。结果表明:随着频率的提高,油纸绝缘系统的局部放电起始电压显著降低,单位时间内关键气体的产气量明显提高;但在高频电压下 ...
刘思华 +5 more
doaj
The Impacts of Midday Information and Overnight Information on the Volatility of Chinese Stock Market [PDF]
, 2016 信息的传播和扩散是资本市场产生波动的内在动因，我国的股票市场均在白天交易，总交易时间为4小时，仅为全天时间的六分之一。而海内外大部分与金融有关的信息都倾向于在隔夜期间发布，这就会产生相当多的隔夜信息；同时因为我国独特的午间休市制度也会产生较多的午间信息。 上述的各种信息就可能会对我国的股市产生影响，本文尝试用HAR-RV模型来研究午间信息和隔夜信息对中国股票市场波动率的影响；采用水平、方根、对数三种形式，构建午间信息和隔夜信息对中国股票市场影响的HAR-RV模型，Hansen和Lunde(2005 ...
陈兵兵
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Genomic responses to increased temperature and pollinator selection in Brassica rapa L.
New Phytologist, EarlyView.Summary Rapid environmental change reshapes both abiotic stress and biotic interactions, yet it remains unclear how these combined forces structure plants' genomic adaptation. In particular, the joint influence of temperature and pollinator identity, two ecological axes undergoing simultaneous global shifts, has rarely been quantified at genomic ...
Yanqian Ding, Florian P. Schiestl
wiley +1 more source
Cross-cultural Comparative Analyses of Media Texts: A Corpus-based Study of Articles About Climate Change from Five English Newspapers [PDF]
, 2016 全球气候变暖问题相比较而言难以被公众直接感知，大众媒体将相关信息传递给公众，起着桥梁纽带作用。进入21世纪，全球气候变暖问题持续升温，引起国际社会的普遍关注。各国科学界和政界都积极推动，力图提高公众的参与意识，共同应对全球气候变化带来的挑战。虽然气候变化可以被科学家和科技专业人员准确测度，但却难以被公众直接感知。不可否认，全球气候变暖问题对公众来说，往往捉摸不定、变化莫测。公众对其感触不深，认知不切。所以，科技专业人士和公众之间存在信息不对等问题。就该问题而言，媒体的作用极为特殊 ...
张爱真
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Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Wildlife tourist attractions (WTAs) can permit interactions between humans and wildlife that are detrimental to the animals’ welfare and species conservation. Social media portraying human–wildlife interactions could affect people's perceptions of their acceptability and desirability or stimulate demand for detrimental practices.
T. P. Moorhouse, A. Elwin, N. C. D'Cruze
wiley +1 more source
The Influence of Restricting Index Futures Trading on China’s A-Share Market Pricing—The Empirical Analysis Based on High Frequency Data [PDF]
, 2016 股指期货作为成熟资本市场中不可或缺的一部分，在风险对冲、价格发现等方面发挥了巨大的作用。我国股指期货市场起步较晚，直到2010年4月16日才推出了我国第一只以股票指数作为标的资产的期货产品——沪深300指数期货。而在这之前，新加坡交易所于2006年9月率先推出了以富时中国A50股票指数为标的物的股指期货——富时中国A50指数期货，并曾在长时期内主导着我国A股市场的定价权。自沪深300指数期货推出以来，经过多年的发展，我国在A股市场定价权竞争中已占据优势。2015年6月，我国A股市经历了一场“股灾 ...
肖东东
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Detecting mass mortality events in wildlife populations
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Reports in the literature of mass mortality events (MMEs) involving diverse animal taxa are increasing. Yet, many likely go unobserved due to imperfect detection and infrequent sampling. MMEs involving small, cryptic species, for instance, can be difficult to detect even during the event, and degradation and scavenging of carcasses can make ...
Jesse L. Brunner, Justin M. Calabrese
wiley +1 more source
Study of L-band High Frequency Surface Acousitc Wave Sensors Based on E-Beam Lithography [PDF]
, 2015 谐振型声表面波传感器因具有体积小、测量精度高、易于无线无源化等特点，能够胜任封闭狭窄环境及高速转部件等复杂条件下的温度、压力、振动、湿度、应变等环境参数的测量。目前，谐振型声表面波传感器多工作在P波段，器件和天线的尺寸相对较大，灵敏度相对较低。为满足无线传感网络对传感器件微型化和无线无源化的需求，有必要对工作频段更高、特征尺寸为亚微米量级的谐振型声表面波传感器的设计和制造开展深入研究。 本文首先阐述了谐振型声表面波传感器的核心部件—声表面波谐振器(SAWR)的工作原理 ...
张鸿
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Conservation Biology, Volume 40, Issue 1, February 2026.Abstract As the global protected area (PA) network expands to meet international targets, it is important to assess whether traditional reliance on public land will suffice for projected PA growth or whether other tenures, such as Indigenous or pastoral lands, may increasingly contribute.
Emmeline Norris +2 more
wiley +1 more source