Results 111 to 120 of about 1,283,545 (238)
International Journal of Applied Linguistics, EarlyView.ABSTRACT Grounded in social cognitive theory, this study investigated how high‐evidence factors jointly contribute to Chinese‐as‐a‐foreign‐language (CFL) speaking self‐efficacy. Data from 236 CFL learners in Beijing revealed a multifaceted pattern of associations.
Peijian Paul Sun +3 more
wiley +1 more source
Accountability in Government Use of AI: Citizen Concerns and Preferences
Public Administration, EarlyView.ABSTRACT Government adoption of AI opens the “pandora's box” of accountability, a core aspect of public value. Despite the centrality of governmental AI accountability, citizens' concerns and preferences in holding governments accountable for AI usage remain poorly understood.
Naikang Feng, Yanto Chandra
wiley +1 more source
, 2013 综述了近年来国内外芽孢杆菌(Bacillus)作为饲用益生菌的研究与应用概况,总结了芽孢杆菌在动物体内的分布、转移、代谢过程及作用机理,介绍了芽孢杆菌在动物养殖方面的应用,概述了饲用芽孢杆菌的安全性问题.并对芽孢杆菌作为饲料添加剂存在的问题及发展前景进行了讨论,提出加强高效、安全功能菌株的选育,加强芽孢杆菌和其他益生菌的联合使用研究及制定相关的检验 ...
官家发 +5 more
core
Public Administration, EarlyView.ABSTRACT As the public sector increasingly adopts AI‐powered automated decision systems (ADS), understanding how citizens experience and value ADS use in public decision‐making is both normatively and practically important. Therefore, we examine and compare the effects of seven attributes of public values on citizens' support for ADS adoption in two ...
Guimin Zheng +4 more
wiley +1 more source
Fushe yanjiu yu fushe gongyi xuebao随着人工智能技术迅猛发展，设备与传感器领域的研究开发速度及更新迭代速度显著提升。相应地，柔性电路的市场需求日益多样化，对缩短制备周期要求日益凸显，小批量、定制化的柔性电路需求亦进一步扩大。本研究提出了一种基于紫外（UV）固化技术的柔性电路制造新方法，即在柔性薄膜及织物基材表面通过定向UV固化技术成功构筑电路图案，并利用Ag/Fe₃O₄催化化学镀铜构建了柔性电路，旨在有效应对上述挑战。该方法在温和条件（45 °C）下完成，无需高温烧结或复杂设备。实验研究表明，基于两种基材的柔性电路均表现出优异的导电性 ...
甘 杰 +4 more
doaj +1 more source
, 2008 一种用于芳烃与低碳烷烃烷基化反应的催化剂，含有Mo元素和 ZSM-5分子筛，其中Mo元素与ZSM-5分子筛的重量比为1～16％。催化剂中添加有重量比5-40％的粘结剂。上述催化剂在芳烃与低碳烷烃烷基化反应中的应用，反应温度为250～450℃；进料芳烃与低碳烷烃的摩尔比为 0.5-3，重量空速为0.2-5h-1。本发明的催化剂应用于苯和丙烷的烷基化反应时，可高选择性地生成甲苯、乙苯、异丙苯和正丙苯 ...
朱书魁 +3 more
core
Compliance in Regulatory Gray Areas: The Case of the Organic Seed Standard
Policy Studies Journal, EarlyView.ABSTRACT Adaptive regulations, designed to balance flexibility with accountability, can embed provisions that unintentionally leave room for firms to shirk on their responsibilities by exploiting flexibility. We call these provisions “regulatory gray areas,” and ask: how should we understand (non‐)compliance in adaptive regulatory settings?
Liza Wood +3 more
wiley +1 more source
, 2002 一种用于氧化反应的反应控制相转移催化剂及其氧化反应过程，包括杂多酸类QmHnXMpO4+3p和络合物类QmMO3(L)化合物；在反应中催化剂本身不溶于反应介质中，但在反应物之一的作用下，能够形成可溶于反应介质中的活性物种，进而与另一反应物作用，使其选择性地反应，而当反应物之一被消耗完，催化剂即恢复到起始的结构便从反应体系中析出。本发明催化剂的分离和多相催化剂相似，而在反应过程中则完全体现出匀相催化剂的特点，能够满足技术经济的要求，是适合大规模工业应用的新型催化剂 ...
周宁, 李坤兰, 奚祖威, 孙渝
core
Partisanship, Deservingness, and the Attitudinal Policy Feedback Process for Social Policy
Policy Studies Journal, EarlyView.ABSTRACT In an era of identity‐based partisan polarization, we examine whether social policies can still generate positive attitudinal feedback among beneficiaries. Drawing on nationally representative survey data, we demonstrate that partisanship conditions the policy feedback process through divergent perceptions of group deservingness.
Chris Faricy, Christopher Ellis
wiley +1 more source
AVHRR、VEGETATION和MODIS时间系列遥感数据产品现状与应用研究进展
, 2012 全球时间系列卫星遥感产品自产生之日起就得到了高度关注,被广泛地应用于全球、洲际和区域的地表动态监测,并与气温、降水等气候变化表征参数结合起来,应用于全球变化分析。随着时间系列的逐渐延长和新兴传感器的不断涌现,时间系列遥感产品的内容和应用领域更是得到了极大扩展。主要介绍了:①当前国际上流行的可见光/近红外、短波红外和热红外时间系列卫星数据产品的发展现状,传感器主要包括AVHRR、VEGETATION和MODIS。早期以开发波段信息和植被指数等基础数据为主,当前大量专题产品的生产得到广泛开展 ...
王旭峰 +4 more
core +1 more source