Results 81 to 90 of about 37,466 (177)

How e‐Government Shapes Citizen Engagement in Participatory Budgeting

open access: yesLatin American Policy, Volume 17, Issue 4, December 2026.
ABSTRACT E‐government has been widely adopted to enhance citizen participation and improve transparency in public decision making. Yet, its effects on engagement remain context‐dependent and insufficiently theorized, particularly in Global South settings.
Sâmila de Sousa Rodrigues   +1 more
wiley   +1 more source

The Punctuated Equilibrium Theory Applied to the Brazilian Public Budget: New Findings for the Latin American Context

open access: yesLatin American Policy, Volume 17, Issue 4, December 2026.
ABSTRACT The public budget has been widely used as an indicator of government attention to measure the distribution of government priorities and the dynamics of budgetary changes across policy sectors. Shifting the debate and analytical locus on budget dynamics to Latin America, recent studies have applied the Punctuated Equilibrium Theory to the ...
Felipe Gonçalves Brasil   +2 more
wiley   +1 more source

BeS弹性常数和ZB结构相变的第一原理计算

open access: yes四川大学学报. 自然科学版, 2008
在密度泛函理论的局域密度近似下,利用CASTEP程序研究了BeS从闪锌矿结构到NiAs结构的相变.通过焓相等得到相变压强为53.3 GPa,与通过高压下弹性常数值判断的结果相符.
涂东荣, 朱俊, 肖星宏, 郭强
doaj  

Radiographic identification and description of the equine middle conchal sinus (ethmoidal sinus): Implications for diagnosing middle conchal sinusitis

open access: yesEquine Veterinary Journal, Volume 58, Issue 6, Page 1627-1635, November 2026.
Abstract Background The middle conchal sinus (MCS) (ethmoidal sinus) remains one of the least understood equine paranasal compartments. Despite recognition of its involvement in sinonasal disease, disorders of the MCS often remain underdiagnosed in the absence of computed tomographic (CT) imaging due to limited anatomical understanding and challenges ...
J.‐B. Pavard   +3 more
wiley   +1 more source

应用气相色谱法判断500kV变压器故障

open access: yesGaoya dianqi, 2008
笔者应用气相色谱分析技术中的成分超标法I、EC三比值法以及平衡判据法成功地判断出一台主变压器B相内部所存在的突发性电弧放电故障。变压器停运后吊罩检查结果与气相色谱分析诊断结论相吻合,验证了气相色谱分析技术诸方法的正确性及有效性,为大型变压器的运行和异常判断提供了经验。
兰淑丽, 宋昆, 刘芳
doaj  

Bimetallic Oxide/Carbon Fiber Heterodimensional Structure Toward Dual Electromagnetic Attenuation Functions

open access: yesRare Metals, Volume 45, Issue 11, November 2026.
ABSTRACT Achieving concurrent high‐performance electromagnetic absorption and electromagnetic interference (EMI) shielding within a single material system at a fixed filler loading remains a significant challenge. Here, a heterodimensional structural strategy for CuCo2O4@C is proposed to reconcile dielectric and magnetic responses.
Min Zhang   +5 more
wiley   +1 more source

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  

Physical Model for Quantitative Organization Design on Mechanical Performance of Nanotwin Unit in Face‐Centered Cubic Metal

open access: yesRare Metals, Volume 45, Issue 11, November 2026.
ABSTRACT Arranging functional units into a specific organization is a practical structural strategy for achieving fabulous performance, known as the functional unit and organization (FUO) paradigm. This paradigm offers a concise shortcut to establishing structure–performance relationships.
Zhongtao Lu   +5 more
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  

Mixed‐Scale Powder Enables 3D Printing of Tungsten Alloy

open access: yesRare Metals, Volume 45, Issue 11, November 2026.
ABSTRACT Laser powder bed fusion (LPBF) offers a promising route for manufacturing tungsten alloy components with complex geometries, whereas W–Ni–Fe alloys remain the most widely used tungsten alloys because of their excellent overall performance.
Jingjia Sun   +3 more
wiley   +1 more source

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