Results 41 to 50 of about 16,479 (150)
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
, 2023 花瓣形钢管混凝土柱具有造型美观的优点。定义了花瓣形钢管混凝土柱的截面组成，提出了截面偏移比和截面对称系数以反映花瓣形截面性质，提出在花瓣形钢管混凝土柱中设置十字形加劲肋，以增强其组合效应。基于某工程中墩柱和验证的有限元模型，研究了花瓣形钢管混凝土短柱在轴压下的受力机理，分析了加劲肋厚度、混凝土强度、钢材强度、加劲肋开孔直径和间距等参数对轴压性能的影响，研究了加劲肋厚度与钢管壁厚的匹配关系。根据理论分析和大量有限元参数分析结果，建议了加劲肋厚度与钢管壁厚之比和钢管名义径厚比取值范围 ...
张涛 +4 more
core
Emotion and the Advocacy Coalition Framework: An Affective Dynamics Perspective
Policy Studies Journal, EarlyView.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
, 2023 部分包覆钢–混凝土组合墙（以下称PEC墙）在装配式建筑领域具有广阔的应用前景，但其节点承载力研究尚待完善。本文对带水平加劲肋PEC墙–钢梁刚接节点受力性能进行研究，基于既有试验验证有限元模拟准确性，考察水平加劲肋厚度tef、柱间腹板厚度tew、暗柱截面高度hc和暗柱横隔板间距hbw等参数对节点承载力的影响，根据节点受力机理和有限元分析结果，提出带水平加劲肋PEC墙–钢梁刚接节点极限承载力计算公式。研究表明，本文公式计算值与有限元结果吻合良好，可以用于确定带水平加劲肋PEC墙–钢梁刚接节点的极限承载力 ...
叶灵鹏 +4 more
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Democratic Values in Citizen Participation: What Citizens Prioritize in Participation
Policy Studies Journal, EarlyView.ABSTRACT Citizen participation is often initiated to strengthen democracy. While participatory innovations are typically assessed through normative frameworks emphasizing democratic values, little is known about which of these values are prioritized by citizens.
Take Sipma, Frank Hendriks
wiley +1 more source
Dianci bileiqi, 2019 随着风力发电的日益普及,风电机组桨叶的雷击灾害问题愈发严重。针对这一问题,本文分析了桨叶与雷云间先导放电的发展机理,阐述了旋转桨叶的引雷效应,揭示了风机桨叶内部遭受雷击的物理过程,并通过先导发展理论对接闪过程进行了仿真验证。结果表明,后续回击是风机桨叶内部遭受雷击的主要原因,风机桨叶初始角度、旋转速度、回击间隔时间及雷电流幅值均会对雷击位置造成影响。
张子信 +5 more
doaj
Review of Policy Research, EarlyView.ABSTRACT Using data from a long‐term survey of senior civil servants (1970–2021), this study investigates the declining share of jurists in federal ministerial departments in Germany. The mechanisms driving this trend and its subsequent effects are discussed from an organizational perspective, highlighting the influence of environmental pressure and ...
Marian Döhler
wiley +1 more source
Non‐Members in a Tight Spot: How Norway Navigated Autonomy in EU Pandemic Management
Review of Policy Research, EarlyView.ABSTRACT This study offers new insights into how closely integrated non‐member states navigate tensions between autonomy and dependence when urgent policy responses are required within complex supranational frameworks. It does so by exploring how these non‐members exercise their “wriggle room”—a tailored sub‐category of the broader concept of autonomy ...
Sjoerd Alexander de Winter
wiley +1 more source
Shiyou jixie, 2015 压缩机曲轴在工作中受力情况极为复杂，曲轴作为压缩机最重要的零部件之一，一旦失效将会导致整个压缩机的损坏。鉴于此，以2RDS压缩机曲轴为例，采用INVENTOR三维建模软件建立曲轴模型，使用有限元分析软件ABAQUS对其进行应力分析。分析结果表明，曲轴的应力最大位置均出现在主轴颈-I的油孔处，在曲柄与曲柄销和主轴颈与曲柄销过渡圆角处均出现了应力集中，但是最大应力均小于材料的许用应力，结构不会出现静强度破坏。曲轴在压工况时的受力比拉工况时的受力更加恶劣，应力集中情况更加严重 ...
侯小兵
doaj
Jianzhu Gangjiegou Jinzhan, 2020 弯扭箱形钢构件是指在箱形钢构件的基础上,2个端部绕构件轴线发生扭转、沿构件纵向发生弯曲的复杂构件。因优美的建筑造型,弯扭箱形钢构件近年来在国内外的大跨度空间结构中逐步得到应用,然而目前对于弯扭箱形钢构件的受拉性能和破坏机理尚缺乏系统性的研究。利用ABAQUS有限元程序建立了受拉作用下弯扭箱形钢构件的数值分析模型,通过试验验证了计算模型的准确性。研究了钢材强度、弯曲曲率、截面相对扭转角和钢板厚度等参数对弯扭箱形钢构件受拉承载力的影响规律。分析结果表明:随着钢材强度和钢板厚度的增加 ...
吴安旭 +4 more
doaj