Results 71 to 80 of about 17,465 (227)
Gaoya dianqi, 2022 海上风电联接变压器作为海上风电场的主要设备，其抗震安全性关系到海上风电场的平稳运行。针对海洋平台—附属电气设备在地震作用下的动力传递过程及楼层反应谱研究，以及电气设备的动力响应特性和自身薄弱部位研究，开展了变压器1∶10模型比尺的振动台模型试验研究；模型试验与数值仿真分析结果的对比表明，海洋平台的动力特性会显著影响传递至设备底部的地震加速度的低频部分；结构的应力薄弱部位发生在储油柜下方支架处。基于弹性相似的振动台缩尺模型试验可以反映原型结构的地震动响应特性，为附属设备的抗震反应谱研究提供依据 ...
陈健云 +7 more
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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
Guangtongxin yanjiu, 2015 为了探究高湿环境对光纤动态疲劳的影响,实验选取多组光纤,分别在高湿和一般环境下采用两点弯曲法测量光纤的动态疲劳。通过对动态疲劳曲线和实验数据进行分析发现,在高湿环境下,光纤所能承受的断裂应力会下降,且测试时的应力速率越高,断裂应力下降越明显,进而影响光纤动态疲劳参数Nd值。
陆云清 +4 more
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Policy Studies Journal, EarlyView.ABSTRACT Why did Australia go from the White Australia Policy, which excluded non‐whites, to institutionalizing multiculturalism policy in the 1970s? This question defies traditional political ideologies of the major political parties, which had long supported the White Australia Policy. This article is a rare empirical demonstration of the Five‐Thread
Julius C. S. Mok
wiley +1 more source
Issue Attention in Public Opinion Polls: Pollsters as Agenda Responders and Agenda Setters
Policy Studies Journal, EarlyView.ABSTRACT Polling organizations, like other policy actors, must prioritize certain issues. We argue that, for normative and financial reasons, pollsters prioritize issues that are viewed as important by other institutions and the public, leading them to focus survey questions on issues that are on congressional and media agendas, and which are public ...
Qian Zhang +2 more
wiley +1 more source
The Inclusion Trade‐Off: Comparing the Design and Functionality of Collaborative Governance Forums
Policy Studies Journal, EarlyView.ABSTRACT Environmental challenges require collaboration across jurisdictions, often through forums or intermediary spaces for repeated interaction. A persistent forum design question concerns inclusion criteria, or which actors should be included.
Adam Wiechman +3 more
wiley +1 more source
基于随机振动响应互相关函数的结构损伤识别试验分析 [PDF]
, 2011 提出了基于结构振动响应互相关函数分析的损伤识别方法。通过八层剪切型钢框架结构模型在模拟白噪声随机激励作用下的试验,利用相邻测点响应的互相关函数幅值向量变化,构造损伤识别因子进行结构损伤判定、定位及程度量化,结果表明该方法对结构损伤识别的简易性及有效性 ...
刘朝, 姚谦峰, 雷家艳, 雷鹰
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Unpacking Welfare Deservingness Theory: Evidence From the Perceived Deservingness of Gig Workers
Policy Studies Journal, EarlyView.ABSTRACT The theory of welfare deservingness provides valuable insights into the social legitimacy of welfare programs and the principles underlying policy design. In examining the question of who deserves what and why, established deservingness criteria emphasize that individuals demonstrating motivation to work (“reciprocity”) are typically perceived
Juhyun Bae
wiley +1 more source
Shuitu Baochi Xuebao, 2023 粗糙度是影响坡面流水动力特性的关键因子,为探究渐变粗糙度影响下坡面流水力特性,采用粒子图像测速技术(particle image velocimetry, PIV)观测并分析3组流量下渐变粗糙床面下坡面流的流速轮廓线、紊动强度、雷诺应力和壁面切应力的变化规律。结果表明:(1)流速随粗糙度增加而减小;拟合无量纲流速得到流速分布对数公式,粗糙度增大与拟合常数A成反比,与积分系数B成正比。(2)渐变地表粗糙度流向紊动强度与光滑床面坡面流变化趋势相似。流向紊动强度随相对水深的增大而减小。随着粗糙度增大 ...
谷方正 +4 more
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