Results 111 to 120 of about 42,313 (202)

Advancing Major Policy Change Analysis in the Advocacy Coalition Framework

open access: yesPolitics &Policy, Volume 54, Issue 4, August 2026.
ABSTRACT The Advocacy Coalition Framework (ACF) has been used extensively to study policy processes globally. Existing research, however, fails to sequence the combination of factors that influence policy change. Using theory‐testing process tracing and a within‐case study design focused on Ghana and Nigeria, we address these knowledge gaps by ...
Alex Osei‐Kojo   +2 more
wiley   +1 more source

雷达探测分析广西丘陵坡耕地整地措施对土壤水分的影响

open access: yesShuitu Baochi Xuebao
目的整地是丘陵山区农业生产中的关键措施,明确整地后土壤属性的变化与田间土壤水分空间变异特征的响应关系,对于提升农业生产效益具有重要意义。方法以广西丘陵山区水平和反坡2种典型整地措施为研究对象,将野外雷达探测试验与室内土壤分析试验相结合,利用图像解析、统计分析等方法,深入探讨整地措施对坡耕地田间土壤水分变异特征的作用。结果在相同外部供水条件下,水平整地后的土壤水分空间变化显著发生在0~30 cm土层,反坡整地集中在20~40 cm土层,坡耕地贯穿整个0~50 cm土层 ...
倪晓庆   +6 more
doaj   +2 more sources

稀疏晶场作用的键无规BC模型的相变特性

open access: yes四川大学学报. 自然科学版, 2010
运用切断近似的方法,在有效场框架下,对稀疏晶场作用的键无规Blume-Capel(BC)模型的相变进行了研究.具体分析了三种键无规分布的BC模型.分别探讨了系统三临界点(TCP)随稀疏晶场和键无规这两种无序因子的变化关系及相变曲线呈现的一些新特征,对不同键无规分布的BC模型的相图进行了比较,并给出相应的相图.
朱海霞, 晏世雷
doaj  

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

open access: yesPolicy 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

一种配电网单相接地故障判断新方法及其应用

open access: yesGaoya dianqi, 2017
准确判断单相接地故障,是馈线自动化关键技术之一。基于时频谱突变原理,提出了一种利用Daubechies db4-db8小波变换提取突变特征量,运用非定项属性决策原则,进行单相接地故障施行判断方法。开发了相应的智能柱上开关;介绍了实际物理模拟试验结果;某山区配电网变电站的现场试运行表明,单相接地故障判断准确性达到100%,验证了该方法的准确性和实用性。
阙波, 陈蕾, 邵学俭
doaj  

Does public participation foster stakeholder support for policy proposals? Evidence from the European Union

open access: yesPolicy Studies Journal, Volume 54, Issue 3, August 2026.
Abstract We examine whether and how public participation in policymaking contributes towards fostering stakeholder support for policy proposals formulated in the bureaucratic arena. We explain how key markers of procedural fairness describing both the participation process and policymakers' presentations of it during the decision justification stage co‐
Adriana Bunea, Idunn Nørbech
wiley   +1 more source

一种降低换相失败概率的变论域模糊控制方法

open access: yesGaoya dianqi, 2017
为了降低直流系统换相失败的几率,通过对换相机理的分析,得到促进换相的因素,利用模糊控制预防控制换相失败。针对常规模糊控制精度不高,及控制规则与精度间的矛盾,提出了一种基于相平面响应轨迹特征向量法的变论域模糊预防控制方法,从而动态改变论域,修正控制规则,提高控制精度和收敛性。该方法动态监测交流电压的变化和变化率,一旦故障快速增大越前触发角,减小换相面积,抑制换相失败的发生。通过CIGRE HVDC标准模型进行了仿真研究,仿真结果验证了所提控制方法的灵敏性和准确性,能够有效地降低换相失败发生的概率。
胡松伶   +3 more
doaj  

Blocking the Poor: Status Quo Bias in Policy Congruence

open access: yesPolicy Studies Journal, Volume 54, Issue 3, August 2026.
ABSTRACT Research on unequal responsiveness has shown that policies tend to align more closely with the preferences of high‐income citizens than low‐income citizens. Using comparative data on opinions and policies, we suggest that this inequality primarily results from status quo bias; asymmetric blocking power drives unequal congruence rather than ...
Mikael Persson, Anders Sundell
wiley   +1 more source

电力变压器绕组短路瞬态受力分析

open access: yesGaoya dianqi, 2019
以型号为SFPSZ7-150000/220的变压器为例,建立三维三相磁—结构耦合模型,在三相短路的情况下,利用Ansys Maxwell软件进行瞬态电磁场仿真分析,分析绕组的单匝线圈的瞬态轴向力和辐向力,得出了绕组线圈随时间变化的瞬态轴向力和辐向力曲线,并总结了对应的规律:在A、B、C三相的高压绕组当中,位于A相第10分区的单匝线圈所受到的辐向合力为最大;在A、B、C三相的低压绕组当中,位于第7分区的三相绕组线圈中,B相绕组线圈受到的辐向力最小等这些结论。这将为对变压器在短路冲击下的累积效应 ...
李德波   +4 more
doaj  

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