Results 41 to 50 of about 6,070 (191)

Decoding Paradoxes in Digital Government: Strategies for the Pursuit of Public Value

open access: yesPublic Administration, EarlyView.
ABSTRACT This study aims to analyze the complexities of paradoxes in digital government. Through a focused analysis of 34 selected articles, adhering to PRISMA guidelines, it codifies seven paradoxes, categorized into “internal governance paradoxes” and “external engagement paradoxes.” These paradoxes arise from conflicting values among governments ...
Yifan Wang, Bing Ran, Liang Ma
wiley   +1 more source

PEG-PLA-PGL/RGD涂层支架对冠脉支架置入术后再狭窄的影响

open access: yesZhongguo shiyan zhenduanxue, 2014
目的探PEG-PLA-PGL/RGD涂层支架置入后对猪冠状动脉内皮化及内膜增生的影响。方法以PEGPLA-PLG聚脂肪酸为载体,通过载体接枝精氨酸-甘-天冬氨酸三肽聚合物(RGD),制成生物可降解高分子载RGD冠脉支架。实验分为裸支架组、紫杉醇涂层支架组、PEG-PLA-PGL/RGD涂层支架组,每组实验小型猪6只,将相应支架分别置入到每组猪的冠状动脉损伤段,分别4周及12周后处死,取出支架段血管行病理学观察及计算机图像分析测定管腔面积(lumen area,LA)、内弹力膜面积(internal ...
张基昌   +8 more
doaj  

Powerful representation of the poor? German welfare associations' narrative advocacy during COVID‐19

open access: yesPolicy Studies Journal, EarlyView.
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

Narrative power in the narrative policy framework

open access: yesPolicy Studies Journal, EarlyView.
Abstract The Narrative Policy Framework lacks clear and empirical explanations of power. Yet, the study of narratives is inherently the study of power in shaping policy outputs and decisions. We develop a conceptual model positing that expressions of power (power to, with, and over) may be discovered in narrative constructs (e.g., narrative structure ...
Elizabeth A. Shanahan   +8 more
wiley   +1 more source

《天工开物》所附《琢玉图》考 [PDF]

open access: yes, 2014
《天工开物》是最早记载和图示琢玉机的文献。自1637年初版刊行以来,在翻刻和传抄过程中,出现了多种版本。文章重点考察和对比了《天工开物》几个版本中"珠玉"篇的相关琢玉文字和《琢玉图》,将图示琢玉机划分为框架型、完整型和扩展型三种型式 ...
关晓武
core  

一种新型自复位耗能抗震支吊架参数分析

open access: yesJianzhu Gangjiegou Jinzhan
为解决传统抗震支吊架采用“硬抗”的方式抵抗地震作用,减小传统抗震支吊架震后的残余变形。提出一种新型自复位耗能抗震支吊架,采用ABAQUS有限元软件分别对自复位耗能抗震支吊架和传统抗震支吊架进行有限元模拟,对比分析两种支吊架的应力及变形特性、滞回性能,以验证所提自复位耗能抗震支吊架的抗震性能;建立不同参数的支吊架模型,通过滞回性能参数分析,得到抗震斜撑复位比、刚度比和摩擦系数对自复位耗能抗震支吊架滞回性能的影响规律,给出上述参数取值建议;以支吊架响应峰值加速度作为工程需求参数 ...
王涛   +4 more
doaj   +2 more sources

特高压支柱类设备动力放大系数研究

open access: yesDianci bileiqi, 2020
在特高压支柱类设备研究中,支架的动力放大系数是一个很关键的参数。重点研究了在地震加速度反应谱条件下,瓷质设备和复合材料设备在支架结构参数相同时的动力放大系数的变化关系。通过改变钢材的弹性模量使支架的刚度发生变化,用数值模拟的方法分别对11种整体结构中支架的速度、位移、应力、加速度的动力放大系数做了对比分析,同时通过计算不同支架结构形式的用钢量,来对比支架频率与用钢量之间的变化关系。从仿真分析的结果,并考虑实际特高压变电站和换流站内瓷质和复合材料电气设备抗震设计情况,建议统一采用1 ...
张小军, 卢智成, 刘振林
doaj  

Moralization in Policy Narratives: Insights From the Politics of Climate Change and Public Health

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT In this study, we examine the process of moralization—defined as the use of moral values to mobilize support for or against policy proposals. Specifically, we investigate how political parties strategically employ moralization to influence policy processes, varying their approach depending on their political ideology and institutional position.
Simon Schaub, Jale Tosun, Maria Becker
wiley   +1 more source

全喉切除术后无喉者的语言康复实践 [PDF]

open access: yes, 2004
喉癌患者行全喉切除后,由于丧失语言功能,严重影响了其生活、生存质量,积极帮助无喉者使其获得语言康复,既是医疗问题,也是社会问题,我们与香港新声会联合举办语言康复训练班,收到较好的效果,现报告如下 ...
Wei, WI   +7 more
core  

有限元法在架空线-电缆连接塔支架能量损耗计算中的应用

open access: yesDianci bileiqi, 2016
为有效解决城区土地紧缺和美化环境的问题,采用电力电缆取代架空线路已成为城区电网建设的趋势。以某110 kV同塔双回线路连接塔电缆支架为研究对象,建立电缆及其支架的仿真模型,根据有限元法对模型进行网格剖分及处理,计算了支架材料、电缆电流、电缆相序排列方式、支架材料相对磁导率以及电缆相间距离对支架能量损耗的影响。计算结果表明:使用不锈钢材料可以有效降低电缆支架中的损耗;电缆电流及支架材料相对磁导率与支架损耗呈正相关关系;电缆相序排列方式对支架损耗影响较小,同相序时损耗最大,逆相序时最小 ...
罗日成   +4 more
doaj  

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