Results 131 to 140 of about 56,261 (228)

基于改进型QSPM矩阵的线路连结金具寿命评估方法

open access: yesDianci bileiqi, 2017
针对沙漠区域广泛存在的输电线路连接金具磨损问题,在改进型QSPM矩阵的基础上引入灰色理论和模糊数学方法,建立了沙漠环境、输电走廊、线路本体特征以及连接金具特性等因素的线路连接金具寿命评估指标体系。对沙漠地区某同走廊750kV线路吐鲁番至哈密区段的连接金具进行了寿命评估,评估计算结果与运行实际非常相似。该方法实现了多源影响因子的量化评估,可为同走廊的线路连接金具磨损风险评估提供技术支撑。
梁伟   +7 more
doaj  

The Inclusion Trade‐Off: Comparing the Design and Functionality of Collaborative Governance Forums

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT Environmental challenges require collaboration across jurisdictions, often through forums or intermediary spaces for repeated interaction. A persistent forum design question concerns inclusion criteria, or which actors should be included.
Adam Wiechman   +3 more
wiley   +1 more source

基于变权—靶心贴近度的换流变压器状态评估方法

open access: yesGaoya dianqi
针对换流变压器状态评估中的数据匮乏以及各评价指标间的相互中和等问题,提出一种将变权理论和靶心贴近度相结合的换流变压器状态评估模型。首先,考虑到实际案例中指标的动态发展,采用变权模型根据指标量的劣化程度进行变权处理;其次,为了达到降低数据需求并能准确评估换流变压器状态的目的,采用靶心贴近度模型确定换流变压器对各个状态等级的贴近度;最后,采用隶属度函数将靶心贴近度转化为隶属度并计算换流变压器最终状态情况。实际案例表明:文中提出的状态评估模型不仅能够有效地评估换流变压器的健康状态而且同样适用于电力变压器 ...
李博   +5 more
doaj  

基于信号特征融合与优化的高压断路器机械状态评估

open access: yesGaoya dianqi, 2018
从断路器电磁铁线圈电流和振动信号中分别提取信号特征,是实现断路器状态评估的可靠方法。然而断路器实际运行中的故障类型复杂多样,只靠单一信号可能无法准确实现其状态评估,因此提出一种基于不同信号特征融合的断路器状态评估方法,分析表明,该方法有利于实现断路器在复杂故障前提下的状态评估;对信号融合后的特征量进行了优化分析,结果显示,优化后的特征量依然能够准确实现断路器状态评估。
赵科   +5 more
doaj  

Authority Versus Competition: Intergovernmental Interactions and Subnational Policy Adoption in Climate Policy

open access: yesReview of Policy Research, EarlyView.
ABSTRACT In the face of increasingly complex environmental challenges, subnational governments play a critical role in implementing climate policies. This study investigates how intergovernmental interactions—specifically formal authority interactions and informal competitive interactions—shape the adoption of climate policies by Chinese provincial ...
Shiming Zheng, Alex Jingwei He, Yujie He
wiley   +1 more source

NLR、RDW水平联合振幅整合脑电图在评估早产儿脑损伤及神经发育中的临床价值

open access: yesZhongguo shiyan zhenduanxue
目的分析中性粒细胞/淋巴细胞比值(NLR)、红细胞分布宽度(RDW)联合振幅整合脑电图(aEEG)在评估早产儿脑损伤及神经发育中的价值。方法回顾性选取安徽医科大学第三附属医院2022年1月至2023年12月收治的180例早产儿资料,依据患儿是否脑损伤以及神经发育状态进行分组,收集NLR、RDW及aEEG评分并分析上述参数对早产儿脑损伤以及神经发育的评估价值。结果脑损伤组NLR、RDW水平均高于非脑损伤组,aEEG评分低于非脑损伤组(P<0.05);NLR、RDW ...
陈萌萌, 于梅, 潘军平, 黄金华
doaj  

Bacteriophage and Fusidic Acid Have Synergistic Effect Against Meticillin‐Resistant Staphylococcus pseudintermedius in Ex Vivo Canine Dermis Model

open access: yesVeterinary Dermatology, EarlyView.
Background: Antimicrobial stewardship has become vital given the progressive emergence of multidrug‐resistant bacteria, and novel approaches to the treatment of bacterial infections are needed. Recently, reported synergistic effects of antibacterial drugs and bacteriophage therapy have revealed promising applications for the management of meticillin ...
Sarah Ehling   +9 more
wiley   +1 more source

[Advances in the assessment and management of voice disorders]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Xu W.
europepmc   +1 more source

Machine Learning Model for an App‐Based Tool to Assist With the Diagnosis of Canine Atopic Dermatitis

open access: yesVeterinary Dermatology, EarlyView.
Canine atopic dermatitis (cAD) is a chronic condition requiring life‐long management. Accurate diagnosis can be challenging, with no reliable diagnostic test. This study aimed to generate a simple diagnostic model for cAD. This model is a relevant prototype for an app‐based tool to support general practitioners in the diagnosis of cAD alongside ...
Xavier Langon   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy