Results 61 to 70 of about 1,715,598 (166)
ABSTRACT As digitally mediated communication increasingly shapes language learning beyond formal classrooms, social media platforms offer new possibilities for authentic, intercultural interaction. This qualitative study investigates how TikTok Live‐mediated interaction supports English as a lingua franca (ELF) use, meaning‐making, and intercultural ...
Wen‐Chi Vivian Wu +2 more
wiley +1 more source
ABSTRACT Self‐directed Learning (SDL) is an important skill for learners of all ages and phases of life. Generative AI facilitates self‐directed second language (L2) learning by providing interactive, personalised access to online resources. However, existing research on AI‐assisted self‐directed L2 learning focuses on adult learners in higher ...
Qing Ma +4 more
wiley +1 more source
Resource Substitution: Local Governments' Issue Attention and Policy Reinvention
ABSTRACT Research on policy reinvention, where a government modifies rather than replicates policy innovations introduced by other governments, has progressed significantly, but how it is influenced by the government's issue attention has not been thoroughly examined.
Yingxin Zhang, Yixue Yao, Kaifeng Yang
wiley +1 more source
针对交流电场无线取能电源取能功率低,难以满足输电线路铁塔在线监测装置的用电需求,对交流电场无线取能电源进行了优化设计。首先,理论分析了取能电源的电路模型,给出了取能功率方程以及影响取能的关键因素;其次,通过有限元软件仿真计算确定了取能极板的形状和尺寸,并通过理论分析与仿真计算优化了放电电路的参数;最后,通过仿真优化计算得到了当耦合电容为15 pF,取能电容为0.1μF,充电电压为200 V时,500Ω的负载能获得25 mW的取能功率,相比于未进行优化的取能电源功率提升了2.5倍 ...
王黎明 +4 more
doaj
Designing Integrated Policies for the Twin Transition: Challenges and Tradeoffs
ABSTRACT Democratic governance faces the intertwined imperatives of managing the transformative risks and opportunities of digitalization, particularly stemming from artificial intelligence (AI), while achieving environmental sustainability within planetary boundaries.
Martino Maggetti
wiley +1 more source
ABSTRACT Epistemic orphaning, responsibility drift, loss of institutional memory, and non‐stationarity are not new problems in infrastructure governance—they have accompanied long‐life infrastructure throughout its history. What artificial intelligence changes is not the existence of these problems but their scale, opacity, and the structural ...
Priscilla P. Nelson
wiley +1 more source
水源涵养功能的变化对流域生态水文及其供水安全产生重要影响,稳定良好的水源涵养功能是区域经济社会高质量发展的基础。基于InVEST产水量模块、水源涵养模型、逐像元线性拟合,模拟1981—2015年秦岭及秦岭南北水源涵养时空变异,分析水源涵养对气候变化的响应,探讨气候波动背景下水源涵养演变趋势。结果表明:(1)近35年来秦岭水源涵养呈下降趋势,年变化速率-1.44 mm/a,秦岭北坡水源涵养下降趋势大于秦岭南坡;(2)近35年来秦岭水源涵养空间变化趋势呈空间异质性,除汉江南岸玉带河上游、牧马河上游 ...
王辉源, 宋进喜, 吴琼
doaj
[[abstract]]隨著全球暖化加劇,各國紛紛思考如何節能減碳,鑑於石化能源的仍具高度依賴性,找尋替代能源勢在必行。 核電雖然效能強大,但在日本311大地震後受到強烈的質疑,近年來太陽能、風力、水力、地熱等可再生能源逐漸受到重視 ...
魏之耕
core
ABSTRACT This study explores environmental justice issues in coastal food systems, focusing on conflicts between small‐scale fisheries and the energy sector due to differing goals in managing food and energy sources. It does so by examining the interdependence between institutions, policies, and different types of knowledge; key elements in building ...
Mateus Henrique Amaral +6 more
wiley +1 more source
ABSTRACT This critical ethnographic study examined the perspectives of service providers and organizational leaders working within charitable food services for people experiencing homelessness in two Canadian cities. Informed by Paulo Freire's writings and a human rights‐based approach, we explored how power is enacted through everyday practices and ...
Corinna Easton +4 more
wiley +1 more source

