Results 111 to 120 of about 173,503 (241)
Jianzhu Gangjiegou Jinzhan, 2020 地震作用下,传统钢框筒结构难以实现强柱弱梁的设计理念,大震下柱端往往先于梁端出现塑性铰。针对这一问题提出了含可更换剪切型耗能梁段的钢框筒结构,即在裙梁中设置可更换的剪切型耗能梁段,大震作用下结构利用剪切型耗能梁段良好的弹塑性变形能力进行耗能,其余构件仍处于弹性状态或部分发展塑性。设计了一组算例结构,包括传统钢框筒结构和含可更换剪切型耗能梁段的钢框筒结构,采用SAP2000有限元分析软件对算例结构进行了弹性和弹塑性地震反应分析 ...
程倩倩, 连鸣, 苏明周, 张浩
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International Journal of Applied Linguistics, EarlyView.ABSTRACT Although the use of AI technologies (e.g., chatbots and automated writing evaluations (AWE)) has gained considerable attention in language learning fields in recent years, how AI technologies have been designed and implemented in language learning education, as well as their effectiveness, is understudied.
Shen Qiao +2 more
wiley +1 more source
Gaoya dianqi, 2016 针对并网风力发电机组性能分析评估中存在大量定性指标、各指标模糊性和随机性并存的问题,提出了基于云重心评判法的并网风电机组性能分析评估模型。首先从技术参数、整体功能、系统可靠性及机组维修性4个层面分析并构建了风电机组性能分析综合评价指标体系。然后将各指标值转化为云模型并确定各个指标的权重值。最后计算出修正的加权偏离度,将其输入定性评判云发生器得到风电机组性能评估结果。运用所提方法对某型风力发电机组性能进行分析,并与模糊综合评判法进行比较,验证了该模型的优越性和有效性。
张心刚, 苏浩益
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Jianzhu Gangjiegou Jinzhan, 2020 介绍了高性能钢结构若干重要概念,指出高性能钢结构应满足承载性好、承灾性好和施工性好要求。而承载性好的钢结构应在确定的条件下具有较好的使用功能和较大的承载能力;承灾性好的钢结构应在罕遇的大地震下不发生整体结构倒塌,以及在可能发生的火灾、爆炸作用下产生的结构局部破坏不会引起结构的连续性倒塌;而施工性好的钢结构应便于制作与安装,减少施工工期与成本。还提出了高性能钢结构相关重要概念的实现方法,指出高承载性钢结构可以从采用高强结构钢材料、高承载结构构件和高效结构体系3个方面加以实现 ...
李国强
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International Journal of Applied Linguistics, EarlyView.ABSTRACT The current study set out to contribute to the burgeoning research area of out‐of‐class L2/FL learning by examining, specifically, English learners’ extramural engagement with watching movies/videos and/or listening to songs (i.e., exposure to audiovisuals).
Art Tsang, Susanna Siu‐sze Yeung
wiley +1 more source
Guangtongxin yanjiu, 2014 为了更方便地监控城域以太网的性能参数,文章提出一种结合ITU-T Y.1731标准的UDAPM（用户可定义的自动性能监测）方法。介绍了性能参数测试原理,阐明了UDAPM模块具体监控性能参数的实现原理,并分析了具体的UDAPM模块设计方案。试验结果表明,用户可以设置最小时间间隔和相关参数阈值,并能显示历史监控情况和实时监控情况,具备可行性。通过在几项性能指标上对比ITU-T Y.1731协议,证实了该模块的优越性。
郭雯琦, 戴锦友, 郭川生
doaj
International Journal of Applied Linguistics, EarlyView.ABSTRACT This study conducted linguistic analyses of the written corrective feedback (WCF) for Chinese as a second language (CSL) provided by chat generative pre‐trained transformer (ChatGPT) and human teachers (including preservice teachers and senior teachers).
Ling Zhang +2 more
wiley +1 more source
Shuitu Baochi Xuebao[目的] 为探究连续性和间歇性降雨条件下土壤结皮与入渗性能间的变化关系。[方法] 选取3种典型耕作层黄土,通过室内模拟降雨试验,分析不同降雨条件下土壤结皮强度和黏结力与入渗性能的关系。[结果] (1)入渗性能随连续性降雨历时及间歇性降雨场次的增加而减小;同等降雨历时和降雨强度下,间歇性降雨的减渗效应高于连续性降雨。(2)土壤结皮强度和黏结力随连续性降雨历时和间歇性降雨场次的增加而增加;褐土和黑垆土的入渗性能与结皮强度和黏结力呈显著线性相关(p＜0.05),连续性降雨历时越长、间歇性降雨场次的越多 ...
刘志强 +3 more
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International Journal of Applied Linguistics, EarlyView.ABSTRACT Second or foreign language (L2) speaking is a key aspect of L2 competence. While GenAI shows potential to address challenges in L2 speaking development, its role remains insufficiently understood. Self‐Determination Theory (SDT) could explain student language learning engagement. Therefore, this systematic review examines how GenAI affordances
Yanyan Catherine Lin +3 more
wiley +1 more source
Dianci bileiqi, 1995 硅灰石应用在高压电瓷配方中，可降低烧成温度、缩短烧成时间、减少烧成收缩、提高介电性能和绝缘性能。研究提出的配方具有良好的制造工艺性能和机、电、热性能，用于研制ＺＬ─１０／４００户内联合胶装支柱绝缘子，其主要性能达到或接近国内外同类产品水平。
金世浩, 李学权, 李一哲
doaj