Results 21 to 30 of about 2,435 (69)
Focusing Events, Agenda Setting, and Narrative Numbing
Review of Policy Research, EarlyView.ABSTRACT Focusing events are important in understanding policy change, as demonstrated in Birkland's work on agenda setting, the multiple streams framework, and the narrative policy framework. These frameworks emphasize the role of focusing events in drawing public attention to broader issues.
Megan K. Warnement Wrobel +1 more
wiley +1 more source
Dianci bileiqi, 2016 避雷线分流系数是接地网设计、避雷线选型和热效应分析以及评价输电线路电磁环境的基础,因此合理的避雷线分流系数计算方法有着重要的意义。基于避雷线的等效阻抗模型,提出了计算站外短路情况下避雷线分流系数的分流阻抗模型计算方法,并利用MATLAB程序实现了计算过程。针对某发电厂站外短路的情况,分别利用ATPDraw软件和分流阻抗模型计算了避雷线分流系数,两者计算结果的相对误差小于10%,满足工程计算要求,验证了本文站外短路分流阻抗模型的正确性。最后,本文利用分流阻抗模型分析了电站接地电阻 ...
杨琪 +5 more
doaj
Policy &Internet, Volume 18, Issue 1, March 2026.ABSTRACT This article investigates how TikTok Shop reproduces the e‐commerce model of Douyin Shop against a backdrop of divergent regulatory challenges and geopolitical distrust. One of the strategic changes we observe in TikTok Shop is the shift of consumer goods suppliers from local merchants to China‐based sellers.
Shuaishuai Wang, Jing Meng, Yitong Li
wiley +1 more source
Gaoya dianqi, 2015 文中针对±10 k V/1 k A柔性直流配电系统进行仿真分析,包括直流系统仿真参数设计、结构选取,配合直流断路器的应用,利用PSCAD/EMTDC仿真软件分析了极间短路故障时直流系统暂态变化的情况,并结合系统侧参数分析了各因素对暂态过程的影响。仿真结果表明,系统参数对故障暂态电压电流的变化有较大的影响;直流断路器可以快速开断故障电流,限制电流峰值,对系统参数设置和器件及设备选型有一定的参考价值。
朱童 +10 more
doaj
Sexuality, Gender &Policy, Volume 9, Issue 1, February 2026.ABSTRACT The purpose of this study is to determine the relationship between productivity and socioeconomic characteristics, as well as the degree to which job satisfaction and engagement can strengthen or moderate this association. With a focus on the mediating roles of job satisfaction and job engagement, this study examines the complex relationship ...
Abdullah Al Masud +6 more
wiley +1 more source
Shuitu Baochi Xuebao, 2001 采用变坡水槽研究了坡面流水动力学参数 (流态、流速、水深及阻力系数 )随流量和坡度的变化规律。结果表明 ,坡面流流态与水深密切相关 ,当水流深度小于 0 .316 cm时 ,坡面流呈过渡流 ,水深大于 0 .316 cm时呈紊流流态 ;当坡度为 5～ 2 5°、单宽流量为 0 .6 2 5～ 12 .5× 10 - 3m3/(s· m)时 ,坡面流平均流速和平均水深主要受流量控制 ,坡度的影响并不显著 ,可用简单的线性函数来模拟平均流速、水深与流量和坡度间的关系 (r2分别为 0 .89,0 .78) ;
张光辉 张光辉 卫海燕 刘宝元
doaj +2 more sources
Dianci bileiqi, 2014 对变电站内接地短路时短路电流分布进行了分析,对避雷线-杆塔系统进行了研究。通过对其等效阻抗即避雷线分流阻抗与杆塔总基数之间关系进行分析,得出避雷线分流阻抗主要决定于第15基杆塔之前的避雷线-杆塔系统的结论,进而提出实用避雷线分流阻抗模型,在此基础上推导出避雷线分流系数。该方法克服了目前方法的一些缺陷,在参数取值准确度上具有很大优越性。
李德超, 王吉文, 张玉环
doaj
World Water Policy, Volume 12, Issue 1, February 2026.ABSTRACT Water security in tropical regions faces escalating pressures from climate change, land‐use shifts, and population growth. We conducted a bibliometric review of 1146 peer‐reviewed articles (1964–2023) on tropical water security. Latent Dirichlet Allocation identified 13 thematic topics and their evolution. Publications rose sharply after 2012,
Karling Fernanda Schuster +3 more
wiley +1 more source
Shuitu Baochi Xuebao, 2019 通过野外径流小区放水试验，研究2种台田类型（土坎，石坎）、3种台田级数（1，2，3级）、1种坡度（10°）、3种放水流量（0.5，1，1.5 m3/h）下坡面流土壤侵蚀过程，分析台田措施下坡面流土壤侵蚀水动力学特征。结果表明，台田级数对坡面流流态影响较大，增加台田级数可使坡面流波动性降低，台田类型对雷诺数影响相对较小。土壤分离速率总体随流量增大而增大，相同流量条件下，呈波动性增加后减少且逐渐趋于平稳的特征，两者相关关系用指数函数回归方程拟合（R2>0.840）。同类台田且田面宽度和相同条件下 ...
肖丛宇 +6 more
doaj
World Water Policy, Volume 12, Issue 1, February 2026.ABSTRACT Urban expansion significantly impacts flood risk, particularly in rapidly growing areas where impervious surfaces exacerbate surface runoff. This study examines spatial patterns of urban growth and their effects on flood exposure in Mecklenburg County, North Carolina, from 2011 to 2021.
Pegah Madadi, Azad Sadeghi
wiley +1 more source