Results 51 to 60 of about 1,452,452 (183)
Gaoya dianqi, 2014 为了满足经济效益与社会效益的需要,进一步加强变压器运行的安全性与稳定性,笔者提出了一种对变压器进行状态评估的方法。通过分析变压器运行中各状态量参数,引入基于关联规则的权重计算方法,采用综合分析与变权重评分制的方法,建立起一个较为完善的变压器状态评估体系,以更为准确地评判变压器运行状态的真实工况。实例分析证明,此方法能够为变压器实施状态检修提供有效的参考意见。
谢荣斌 +4 more
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Basic income trials and the politics of scale: A research agenda
Policy Studies Journal, Volume 54, Issue 3, August 2026.Abstract The growing popularity of basic income has led to extensive trials of the policy in numerous settings across the world. However, analysis of the politics of basic income, and in particular the political dynamics preceding and resulting from trial programs, lags. In response, we propose a research agenda that uses political scale to investigate
Jurgen De Wispelaere +2 more
wiley +1 more source
, 2006 运用解析方法对量子点的结构进行分析,通过对积分核函数进行计算,可以得到各种量子点结构的应力应变分布. 同时,对常见的金字塔形和圆锥形等量子点的结构进行了具体分析,并且与有限元方法计算得到的结果进行了比较.
黄永箴 +4 more
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Powerful representation of the poor? German welfare associations' narrative advocacy during COVID‐19
Policy Studies Journal, Volume 54, Issue 3, August 2026.Abstract The COVID‐19 pandemic sparked unprecedented experimentation in the German social assistance system, leading to changes previously considered impracticable by policymakers. This included a sanctions moratorium, easier access to benefits, and temporary cash transfers, all of which were advocated by welfare associations—key organized interests ...
Christopher Smith Ochoa
wiley +1 more source
, 2016 针对依靠单变量阈值过程监控等方式已经无法满足对系统实时监测的要求,本论文引入多变量过程统计监控方法。主元分析法(Principal component analysis,PCA)和基于小波分析的滤波方法,结果显示其能够有效提高其对微小故障的检测能力。通过建立正常运行状态下的多变量统计模型,拟应用于多变量过程统计监控的预测与健康管理(prognostics and health management,PHM)系统 ...
张伟, 高宏伟, 杨小菊, 卞德坤
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Gaoya dianqi, 2021 为了及时有效地诊断变压器绕组松动故障,针对变压器空载合闸振动信号,提出了一种基于变分模态分解(VMD)的分析方法。首先运用VMD对绕组松动前后变压器表面合闸振动信号进行最优模态分解,建立信息熵—峭度—相关系数综合评价模型,并运用熵权—TOPSIS法提取特征模态分量;通过计算变压器振动信号能量熵进一步判定绕组状态;最后搭建测试平台进行实验验证。结果表明,绕组松动和正常状态下变压器振动信号在特征频率和能量分布上均存在明显差异,该方法为变压器绕组松动故障诊断提供了新的思路。
张九思 +4 more
doaj
Policy Studies Journal, Volume 54, Issue 3, August 2026.ABSTRACT What are the conditions under which business corporations expand their institutional power? This paper argues that institutional power is affected by the architecture of the “acquisition regime”—the set of formal (and informal) rules that govern how states purchase public services.
Reut Marciano, Shir Gal
wiley +1 more source
, 2002 一种用多变量分类基于体液中核苷诊断癌症的方法，其特征在于：利用高分辨技术获得尿、血或组织中重要的标记物数据，然后用多变量分类技术如因子分析、模式识别或人工神经元网络技术等来分类不同属性的人群，并进一步对未知个体进行归类的方法，具体涉及到癌症诊断，高效分析技术与各种多变量分类技术相结合，基于体液中多种核苷，尤其是修饰核苷浓度，来判断是否有恶性肿瘤的方法 ...
许国旺 +4 more
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Gaoya dianqi, 2011 为准确判断电力变压器故障后的绕组变形情况,笔者探究了频响法、短路阻抗法和绕组电容法综合判断变压器绕组变形的依据和规律。通过对故障变压器的理论分析和计算,结合实际的吊罩结果,证实了此3种方法的有机结合有助于准确分析和判断变压器绕组变形程度。
陈巧勇, 任红, 罗平, 王建强
doaj
Emotion and the Advocacy Coalition Framework: An Affective Dynamics Perspective
Policy Studies Journal, Volume 54, Issue 3, August 2026.ABSTRACT Despite extensive evidence that emotion and cognition are deeply intertwined, the Advocacy Coalition Framework (ACF) lacks an analytically independent emotional mechanism in its causal architecture—an omission that may be particularly consequential in policy subsystems structured around morally charged, identity‐laden policy disputes.
Moshe Maor
wiley +1 more source