Results 31 to 40 of about 1,001,817 (118)
Regional News, Regional Bias? Evidence From Media Discourses and Welfare Decisions in Germany
Policy Studies Journal, EarlyView.ABSTRACT How do media representations of immigrants shape their treatment by street‐level bureaucrats? Despite a uniform federal legal framework, decision‐making varies substantially across local welfare offices. Though prior research links national news reporting and policy implementation, little is known about how regional variation in news reporting
Stefanie Rueß
wiley +1 more source
, 2014 本发明涉及锂硫液流电池和锂硫液流电池用正极电解液及其制备，所述锂硫液流电池由一节单电池或由二节以上单电池串联而成的电池模块、正极电解液、负极电解液、正极电解液储罐、循环泵和循环管路组成；单电池包括负极集流体、锂负极、隔膜、正极、正极集流体、密封件；正极电解液装填于正极电解液储罐中。所述正极电解液为含有纳米硫粉的Li2S8、、以及三氟甲基磺酸锂或三氟甲基磺酸亚胺锂的混合溶液，其中溶剂为体积比1:5-5:1的四甘醇二甲醚或乙二醇二甲醚和1.3-二氧戊环组成的混合溶剂；与传统的锂硫电池相比 ...
王倩 +6 more
core
Measuring Governance or Wealth? Construct Validation of AI Readiness Indices
Policy &Internet, Volume 18, Issue 3, September 2026.ABSTRACT Many are the promises of artificial intelligence and the indices claiming to measure government readiness for it. This study provides the first construct validity investigation of the Oxford Insights Government AI Readiness Index, the Tortoise Global AI Index, and the IMF AI Preparedness Index, using a nine‐test battery and drawing on ...
Anis Ben Brik
wiley +1 more source
, 1997 本研究通过对被试求解换位棋过程的记录与分析，重点研究了问题表征在换位棋求解过程中的作用。实验结果表明：（1）正确表征问题规则是解题的必要前提.对问题规则信息的误解和遗漏，是影响解题正确率的重要因素。其中对非隐含问题规则的错误表征也占全部错误表征的很大比率。（2）“关键结构”的发现是解决换位棋的必要条件，对问题规则的错误表征影响“关键结构”的发现.（3 ...
王东晖, 傅小兰
core
Policy &Internet, Volume 18, Issue 3, September 2026.ABSTRACT Democratic innovations increasingly take place online, yet little is known about how online citizen participation affects perceived legitimacy compared to in‐person formats. This study presents findings from a preregistered vignette experiment conducted in Spain and Switzerland.
Valeria Vuk
wiley +1 more source
, 2013 环己烷液相氧化制备环己醇与环己酮（K/A 油）是重要的石油化工过程。其中，环己基过氧化氢（CHHP）是环己烷氧化的重要中间体，CHHP分解是环己烷氧化的关键步骤之一。目前工业分解CHHP的方法为碱分解法，该方法K/A油的总选择性较低，而且反应过程中消耗大量NaOH，产生的废碱渣对环境污染严重。如何实现无碱高效分解CHHP，对节约资源，降低生产成本，实现清洁生产和环境保护，具有重要的科学意义和应用价值。 论文首次对氮正离子-过渡金属均相催化CHHP分解的性能进行研究 ...
郑玺
core
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Aiming at the problems of insufficient forming quality and poor surface performance in the preparation of Ti‐6Al‐4V alloy by laser powder bed fusion (LPBF), this study proposed a laser in situ forging additive manufacturing (LIF‐AM) technology, which integrates LPBF with femtosecond laser in situ shock forging and realizes defect control and ...
Peng He +10 more
wiley +1 more source