Results 11 to 20 of about 6,689 (125)

Association Mining of Near Misses in Hydropower Engineering Construction Based on Convolutional Neural Network Text Classification

open access: yesComputational Intelligence and Neuroscience, Volume 2022, Issue 1, 2022., 2022
Accidents of various types in the construction of hydropower engineering projects occur frequently, which leads to significant numbers of casualties and economic losses. Identifying and eliminating near misses are a significant means of preventing accidents.
Shu Chen   +4 more
wiley   +1 more source

International clinical practice recommendations on the definition, diagnosis, assessment, intervention, and psychosocial aspects of developmental coordination disorder – Chinese (Mandarin) translation

open access: yesDevelopmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019
目的 本国际临床指南由欧洲残疾儿童学会(the European Academy of Childhood Disability,EACD)牵头制定,旨在解决发育性协调障碍(developmental coordination disorder,DCD)的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题,通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础,以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类,最终转化为指南建议。并由国际 ...
Jing Hua   +6 more
wiley   +1 more source

Gallium‐Doped α‐MnO2 Cathode for High‐Performance Aqueous Zinc‐Ion Batteries

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Rechargeable aqueous zinc‐ion batteries (ZIBs) have received significant attention because of their high safety and low cost. MnO2 as a cathode material hampers the application of ZIBs due to its structural instability and dissolution during the operation of the battery.
Wen‐yu Xu   +13 more
wiley   +1 more source

The platform policy matrix: Promotion and regulation

open access: yesPolicy &Internet, Volume 17, Issue 1, March 2025.
Abstract This study provides a comprehensive analysis of policy measures adopted by countries in response to the rapid growth of digital platforms, which significantly impact various sectors and national economies. It examines the delicate balance between regulation and innovation, offering nuanced policy recommendations.
Junic Kim, Shanghe Ahn
wiley   +1 more source

直流GIL绝缘子表面附着金属颗粒局部放电发展过程及严重程度评估

open access: yesGaoya dianqi, 2018
直流气体绝缘线路(gas insulated line,GIL)绝缘子表面附着金属颗粒会显著降低绝缘子表面的闪络电压,是GIL设备内一种常见的故障。为研究直流GIL绝缘子表面附着金属颗粒所引发局部放电的发展过程并进行严重程度判断,建立了一套220 kV GIL设备局部放电测试平台,在逐步升压时利用紫外观测仪观察了绝缘子表面局部放电的整个发展过程,对不同发展阶段局部放电脉冲电流信号的局部放电量、局部放电间隔时间图谱进行了分析。结果表明:GIL绝缘子表面附着金属颗粒导致的局部放电严重程度可以划分为3个阶段 ...
李建波, 高文胜, 刘卫东
doaj  

Study on microwave ignition behavior of inferior bituminous coal assisted by coke under dynamic particle spacing [PDF]

open access: yes
In China’s power system, low-volatile coals represented by inferior bituminous coal and coke exhibit significant production output, yet their application in coal-fired power generation is constrained by their low-volatile characteristics.
Guangbo ZHAO   +5 more
core   +1 more source

局部放电光测法的研究现状与发展

open access: yesGaoya dianqi, 2008
笔者概述了光测法在局部放电各种研究领域中的应用现状,包括局部放电光谱分析、局部放电光脉冲检测、局部放电定位、绝缘老化机理、局部放电电磁波传播特性的试验方法以及试验结果,最后提出了高压电器设备局部放电光测法研究目前存在的问题及发展方向。
司文荣   +4 more
doaj  

Review of Power System Prediction Technologies Based on Large Language Models [PDF]

open access: yes
ObjectivesWith the large-scale integration of renewable energy, new-type power systems require greater flexibility and higher prediction accuracy for prediction technology.
DUAN Yunjie   +6 more
core   +1 more source

开关设备中双典型缺陷的局部放电特性研究

open access: yesGaoya dianqi, 2018
在商用实体开关腔体中对典型局部放电源的放电特征进行了分析研究。综合应用暂态对地电压(TEV)和特高频(UHF)技术对单一典型缺陷的局部放电和双典型缺陷局部放电分别进行了检测与分析。实验结果表明,随着电压升高,典型局部放电源的放电量逐渐增大,发生放电的相位也逐渐变宽。局部放电信号相对幅值均与所加电压成近似线性关系,幅值能够表明其局部放电的严重程度。不同典型缺陷的局部放电信号放电脉冲相位图谱不同。当两者典型局部放电源同时存在时放电脉冲相位图谱会进行叠加,从而影响PRPD图谱的形状 ...
王流火   +4 more
doaj  

Discussion on application of information fusion techniques in electric power system fault detection [PDF]

open access: yes, 2016
2002-2003 > Academic research: refereed > Publication in refereed journalVersion of ...
Chan, WL   +4 more
core  

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