Results 101 to 110 of about 164,546 (209)
Gaoya dianqi, 2011 为准确模拟直流牵引供电系统暂态过程,笔者提出并建立了一种计及铁磁材料饱和特性的仿真模型。基于电磁暂态仿真软件PSCAD/EMTDC,建立包含计及铁磁饱和特性钢轨模型、24脉波整流机组模型在内的直流牵引供电系统仿真模型。通过比较仿真结果,该模型能更加准确模拟系统的暂态过程。
韩俊, 徐政
doaj
International Journal of Applied Linguistics, EarlyView.ABSTRACT Generative artificial intelligence (GenAI) has emerged as a powerful tool in the Informal Digital Learning of English (IDLE) environment, offering personalized, interactive, and innovative language learning experiences that may enhance learning engagement.
Jin Liu, Meilu Liu, Yuan Yao, Dechao Li
wiley +1 more source
[[abstract]]本研究主要討論大學粉絲專頁中，訊息與情緒反應之間的關係，以及何種情緒容易刺激粉絲產生參與和 分享。根據S-O-R模型與粉絲專頁所提供的功能分類，提出一套模型，測試訊息、情緒和互動三者之間 的關係。本研究樣本取自全球粉絲數量最多的大學機構，抓取所有文章，以及對應的粉絲回應數量與內 容，共計13,006則訊息。最終揭示粉絲行為與訊息形式具備相互影響關係，而且粉絲人數越多的大學機 構，明顯會善用訊息情緒引發有效互動，提升粉絲對於內容的留言與分享行為，進而刺激更高的內容自 然觸及率 ...
陳玉鈴
core
Narrative power in the narrative policy framework
Policy Studies Journal, EarlyView.Abstract The Narrative Policy Framework lacks clear and empirical explanations of power. Yet, the study of narratives is inherently the study of power in shaping policy outputs and decisions. We develop a conceptual model positing that expressions of power (power to, with, and over) may be discovered in narrative constructs (e.g., narrative structure ...
Elizabeth A. Shanahan +8 more
wiley +1 more source
Dianci bileiqi, 2018 针对电力系统的重要组成部分输电网所易产生的雷击故障,在基于深入分析雷击故障性质与输电网可靠性指标的基础上,提出了一种输电网雷击后可靠性评估模型。该模型包括输电线元件故障率、修复率模型与状态模型,采用线路分段模拟法的输电线可靠性模型与基于概率统计原理的变电站可靠性模型。针对输电网络模型复杂度的不同,提出一种权重计算法。最后采用所提出的输电网雷击后可靠性评估模型对某地区高压输电网进行研究评估,验证了本模型的实用有效性,从而为未来输电网可靠性评估做出了铺垫。
轩刚毅, 姚艳霞
doaj
Long‐Term Time Horizons and Support for Public Investment
Policy Studies Journal, EarlyView.ABSTRACT Generating public support for long‐term public investment may require understanding what citizens perceive as the “long term” in politics and how these perceptions shape their preferences. Across two studies, we find that UK citizens generally understand “long term” as 5–10 years.
Matthew Barnfield +2 more
wiley +1 more source
Topics as Outcomes: Modeling the Influence of Intergovernmental Grants on Policy Diffusion
Policy Studies Journal, EarlyView.ABSTRACT Intergovernmental grants stimulate the diffusion of policy reforms, as the federal government provides states with a financial incentive to adopt policies aligned with federal priorities. Less is known about the extent to which these grants also stimulate horizontal diffusion across states.
NaLette Brodnax, Sarah James
wiley +1 more source
Policy Studies Journal, EarlyView.ABSTRACT Why did Australia go from the White Australia Policy, which excluded non‐whites, to institutionalizing multiculturalism policy in the 1970s? This question defies traditional political ideologies of the major political parties, which had long supported the White Australia Policy. This article is a rare empirical demonstration of the Five‐Thread
Julius C. S. Mok
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2008 目的通过建立大鼠急性高眼压模型,检测孕酮（PROG）对急性高眼压下大鼠视网膜神经节细胞的保护作用。方法选取健康Wistar大鼠35只,分3组,Ⅰ组即正常组5只（10眼）,Ⅱ组即孕酮腹腔注射组15只和Ⅲ组即生理盐水腹腔注射组15只,Ⅱ、Ⅲ组左眼采用前房加压灌注法制成急性高眼压模型,右眼为自身对照眼,最终弃去不符合标准的眼球,每组取10只眼球固定后行石蜡切片,做HE染色及Thy-1.1免疫组化、TUNEL原位凋亡检测。结果Ⅱ、Ⅲ组模型眼的视网膜神经节细胞数均较I组和自身对照眼明显减少 ...
尹元, 徐韶琳, 顾国贞
doaj
Policy Studies Journal, EarlyView.ABSTRACT This study examines the evolution of climate change discourse in the United States Congress from 1987 to 2017, employing natural language processing (NLP) techniques to analyze floor speeches. Using a la carte (ALC) word embeddings, we investigate how Democratic and Republican members of Congress frame climate change, focusing on denialist ...
Joseph Charles Van Matre +2 more
wiley +1 more source