Results 51 to 60 of about 5,524 (189)

Public Preferences on the Economy–Environment Trade‐Off in France, Germany, Great Britain, and the United States

open access: yesPolitics &Policy, Volume 53, Issue 3, June 2025.
ABSTRACT Climate change is increasing pressure on policymakers and the public to face perceived trade‐offs between economic growth and environmental sustainability, but is it possible to fulfill human needs within the ecological limits of the planet? This article investigates how the public prioritizes this trade‐off. We analyze the drivers of citizens'
Soomin Oh, David Hudson, Jennifer Hudson
wiley   +1 more source

刚体直杆模型计算风偏角的影响因素分析

open access: yesDianci bileiqi, 2018
采用刚体直杆模型,计算绝缘子串风偏角,分别研究了水平档距、垂直档距、风速、风向、风压不均匀系数、地形以及加重锤等主要因素对绝缘子风偏特性的影响程度。研究结果表明:水平档距与绝缘子串风偏角呈正相关,垂直档距与绝缘子风偏角呈负相关;在风速一定的情况下,风向的主要影响区间在垂直于线路约±60°区间内。
唐子峰, 廖志雄, 袁翔
doaj  

中风病的中医康复治疗浅识 [PDF]

open access: yes, 2003
本文提出中风病在生命体征稳定、神志清楚 ,神经功能不再恶化后 4 8~ 72小时就应开始康复治疗 ,病情稳定、一般状况好转 ,即可进行全面系统的康复治疗 ...
吕崇山
core  

Incremental yield of exome sequencing over standard prenatal testing in structurally normal fetuses: systematic review and meta‐analysis

open access: yesUltrasound in Obstetrics &Gynecology, Volume 65, Issue 5, Page 552-559, May 2025.
ABSTRACT Objective To critically review the literature and synthesize evidence on the incremental yield of prenatal exome sequencing (PES) in fetuses with an apparently normal phenotype with a normal G‐banded karyotype or chromosomal microarray (CMA).
A. Sotiriadis   +5 more
wiley   +1 more source

某交流特高压线路风偏分析

open access: yesGaoya dianqi, 2019
为研究特高压输电线路的风偏机理,文中以1 000kV南荆Ⅰ线风偏闪络事故为基础,开展故障点的风偏分析。采用规范给定的刚性直棒法进行验算,在风压不均匀系数取0.61和0.75的情况下,计算结果均小于发生事故的阈值。在已有研究基础上确定了分裂导线的阻力系数取值;同时进行了风洞试验,确定了绝缘子串的阻力系数。在Ansys建立导线—绝缘子有限元模型,通过谐波叠加法模拟得到风速时程,在此基础上,进行事故线路导线风偏的动态计算,得到了设计风速下的风偏角大小。结果表明,脉动效应对计算结果的放大作用不可忽略 ...
吕中宾, 白航, 杨晓辉, 楼文娟
doaj  

针灸处方配穴规律初探 [PDF]

open access: yes, 1996
针灸处方配穴规律初探郭玉琴厦门大学海外教育学院针灸教研室(厦门361005)针灸处方,即针灸临床治疗的用穴方案,包括单穴处方和配穴处方。单穴处方是指用针灸治疗疾病时,针对某一病证只用1个腧穴进行针刺或艾灸的用穴方案;配穴处方是指用针灸治疗疾病时,针对..
郭玉琴
core  

Application of artificial intelligence to ultrasound imaging for benign gynecological disorders: systematic review

open access: yesUltrasound in Obstetrics &Gynecology, Volume 65, Issue 3, Page 295-302, March 2025.
ABSTRACT Objective Although artificial intelligence (AI) is increasingly being applied to ultrasound imaging in gynecology, efforts to synthesize the available evidence have been inadequate. The aim of this systematic review was to summarize and evaluate the literature on the role of AI applied to ultrasound imaging in benign gynecological disorders ...
F. Moro   +8 more
wiley   +1 more source

考虑复杂山地风加速的架空线路风偏闪络故障分析 附视频

open access: yesDianci bileiqi, 2022
针对近期某省内发生的一起在复杂山地地形下的220 kV输电线路闪络放电故障,结合现场实际数据对故障的情况进行分析。首先依据现场实际地形、杆塔和气象数据,采用未考虑地形风速影响的传统设计计算方法得到线路故障段风偏位移,所得风偏后的放电间距满足导线设计安全距离要求;而后利用自主研发的Transpert输电线路专家系统中的高程数据建立现场实际复杂山地地形的三维模型,通过ANSYS有限元风场仿真得到故障点风速分布,并计算得到地形风速加速影响后的输电线路风偏角,发现考虑山地风速加速后的风偏放电间距小于安全距离 ...
doaj  

Effect of the early rehabilitation treatment on the neurologic function in patients with different ischemic stroke TOAST subtypes [PDF]

open access: yes, 2015
目的本研究旨在阐述不同急性卒中治疗Org10172(TrIAl Of Org10172 In ACuTE STrOkE TrEATMEnT,TOAST)分型脑梗死患者早期康复治疗的效果及其对神经功能恢复的影响。方法入选脑梗死患者共361例。按TOAST分型:大动脉粥样硬化型(lVA),心源性栓塞型(CE),小动脉闭塞性卒中和腔隙性梗死型(lACI),其它原因及不明原因型(SOd&Sud)。各亚型患者再分为早期康复治疗组及未干预组,记录患者,治疗1月后及随访6月后的美国国立卫生院卒中神经功能缺损评分量表 ...
庄晓荣, 王丰, 苗佳音, 郑维红
core  

Examining the structure of plant–lemur interactions in the face of imperfect knowledge

open access: yesConservation Biology, Volume 39, Issue 1, February 2025.
Abstract Biotic interactions, such as plant–animal seed dispersal mutualisms, are essential for ecosystem function. Such interactions are threatened by the possible extinction of the animal partners. Using a data set that includes plant–lemur interactions across Madagascar, we studied the current state of knowledge of these interactions and their ...
Jadelys Tonos   +6 more
wiley   +1 more source

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