Results 41 to 50 of about 636,519 (177)
Institutional lessons from the Nordic management model
Conservation Biology, EarlyView.Abstract To improve wildlife management outcomes, in terms of reaching management goals and increasing legitimacy, Nordic countries have developed institutional systems involving stakeholders that aim for a more inclusive and participatory model.
Jens Nilsson +2 more
wiley +1 more source
强台风下高压输电线路塔—线耦联体系的力学行为仿真分析二:动力响应分析
Gaoya dianqi, 2016 风载荷是影响高压架空输电线路安全运行的重要因素,为分析塔—线耦联体系的动力响应规律,以广东湛江某220 kV输电线路为背景,在ANSYS有限元开发环境下,建立三基塔两回线塔—线耦联体系有限元模型。基于Davenport脉动风速功率谱,考虑湛江当地气象条件,模拟生成风速时程,在风速时程作用下,对耦联体系进行风致动力响应分析,并将铁塔动力响应结果与拟静力计算结果进行对比。分析发现,动力分析铁塔顺线路位移是规范拟静力的5.2倍左右,垂直线路位移是静力分析的1.3倍左右 ...
贺博 +5 more
doaj
International Journal of Applied Linguistics, EarlyView.ABSTRACT Generative artificial intelligence (GenAI) has emerged as a powerful tool in the Informal Digital Learning of English (IDLE) environment, offering personalized, interactive, and innovative language learning experiences that may enhance learning engagement.
Jin Liu, Meilu Liu, Yuan Yao, Dechao Li
wiley +1 more source
Synthesizing Empirical Research on Learner Metacognition in Second Language Writing
International Journal of Applied Linguistics, EarlyView.ABSTRACT Despite considerable research interest in learner metacognition in second language (L2) writing, there is not yet a review that synthesizes the existing empirical findings and discusses their implications. To fill the void, this systematic review synthesized 39 empirical studies on learner metacognition in L2 writing and examined their salient
Chen Li, Icy Lee, Zhicheng Mao
wiley +1 more source
, 2017 基于Reynolds average Navier-Stockes（RANS）的三维Navier-Stokes流场控制方程耦合结构静力学方程时域分析方法,研究了带有发动机的民用飞机其动力效应对全机气动性能的影响。首先采用数值方法对发动机进排气边界条件进行了模拟,分析了带动力的涡扇发动机模型的流场,并将计算结果与实验进行比较,验证边界条件处理的准确性;以此为基础,考虑结构弹性变形,采用计算流体动力学/计算结构动力学（CFD/CSD）耦合的方法,分别对通气和带动力的翼吊发动机全机的气动性能进行了研究 ...
黄程德 +3 more
core
Gaoya dianqi, 2020 文中通过在动力学仿真软件中建立断路器运动仿真模型,设置不同程度的合闸弹簧应力松弛故障,分析了合闸弹簧应力松弛对断路器操动机构运动特性的影响;采集了断路器操动机构合闸弹簧在正常及应力松弛故障下的振动信号,提出一套基于小波包敏感频段能量法的断路器合闸弹簧应力松弛故障的诊断方法。试验表明,该方法能够有效地区分弹簧是否发生应力松弛故障。
杨韧 +7 more
doaj
International Journal of Applied Linguistics, EarlyView.ABSTRACT This study examines how foreign language teachers’ beliefs about the medium of instruction and translanguaging evolve over time by revisiting three in‐service teachers twelve years after their initial interviews. Using a qualitative longitudinal design, the study traces how translanguaging was initially framed as pedagogically deficient but ...
Danping Wang
wiley +1 more source
, 1994 本文用“工程近似”方法研究了饱和砂土对地震的动力响应。根据饱和砂土对循环荷载动态响应的机理建立了简化模型;给出了描述动态响应的动力方程和描述孔压产生与消散的扩散方程。用Ｎｅｗｍａｒｋ方法与有限差分数值求解这些方程。求得了饱和砂土层对地震的动力响应;包括孔压、剪应力与表面加速度的变化;并对数值结果进行了分析 ...
章根德
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International Journal of Applied Linguistics, EarlyView.ABSTRACT With the increasing number of Chinese international students in Australian universities, intercultural competence has become a critical factor influencing their interactions with Australian tutors in university classroom settings. Existing research often examines students’ intercultural competence from a single‐method or single‐perspective ...
Jiangyu Han, Linda Tsung
wiley +1 more source
, 2016 建立了海上浮式风力机包括弹性叶片、塔架以及SPAR浮体和悬链线式系泊线的整体系统动力模型,并基于改进的三维动态悬链线理论和有限元进行了5MW大型风力机的动响应数值模拟和分析;与以往的准静态方法和简化模型不同,本文考虑了系泊系统的动态特性(例如惯性力和阻尼力)、以及大尺寸柔性部件叶片、塔架等的弹性动力,分析了在波浪载荷下的风力机系统动响应.给出了悬链线式系泊线上的惯性载荷与黏性水动阻力等动态效应对系泊张力及其运动特性的影响,通过与仅考虑静态回复力的准静态法结果对比 ...
陈伟民, 郭双喜, 付一钦
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