鉴于配电网扰动事件的溯源分析有利于准确了解扰动原因、保障电力系统的安全稳定运行,提出了一种基于压缩感知和堆叠降噪自动编码器的配电网扰动事件智能溯源方法,首先利用压缩感知方法将添加了噪声的原始数据映射到压缩域,在保留扰动特征的同时提高了分析效率;然后将压缩采样数据作为堆叠降噪自动编码器的输入,通过堆叠降噪自动编码器的特征自学习能力,学习得到扰动数据中的鲁棒性特征,实现特征与不同配电网扰动事件的关联,构造扰动事件智能溯源模型.通过PSCAD/EMTDC中搭建的IEEE 14节点模型获得的仿真数据进行验证,表明
High-precision manufactured thin-walled pure copper components are widely adopted in precision physics experiments,which require workpieces with extremely high machining accuracy.Double-sided lapping is an ultra-precision machining method for obtaining hi
Sustainable and resilient pavement infrastructure is critical for current economic and environmental challenges.In the past 10 years,the pavement infrastructure strongly supports the rapid development of the global social economy.New theories,new methods,
岩溶属于不良地质构造,产生地质灾害可能性很高,对基础设计和施工影响很大.在岩土工程勘察工作中,查明不良地质作用尤为关键.岩溶发育地区的不良地质作用主要表现为溶洞、土洞、岩面起伏(石柱、石芽等)和地面塌陷(沉降).通过勘察方法来查明不良地质作用的类型、成因、分布范围、发展趋势和危害程度,分析不良地质作用的危害,提出整治方案和建议,采取相应的防治措施,确保建筑物基础的安全与稳定,为基础设计与施工提供依据,并结合工程实例进行说明.通过研究能为岩溶地区岩土工程勘察实践提供帮助.
Given the great advancements in soft computing and data science,artificial neural network(ANN) has been explored and applied to handle complicated problems in the field of pavement engineering.This study conducted a state-of-the-art review for surveying t
岁月流转,周而复始,旧的一年悄然远去,新的一年挥手来迎.2021年,我们阀门行业在全球疫情起伏反复和世界经济复苏不确定性影响中如歌而行,勇敢向前,排除了多重困难与阻碍,保持了良好的发展态势.rn一年来,《阀门》期刊以习近平新时代中国特色社会主义思想指导,在沈阳阀门研究所的正确领导下,在行业企事业单位和广大读者的大力支持下,把握正确舆论导向,不断提升期刊内在质量,扎实有序地推进工作,取得了一定的成绩.在此,我谨代表阀门期刊向关心、关怀、关爱期刊建设的各位领导、各届朋友表示衷心的感谢,感谢诸位的一路相随和倾情
Fatigue and rutting phenomena are major distresses in asphalt pavements.Asphalt mixture properties are highly dependent upon the asphalt binder and the mastic behavior.The pur-pose of this study was to investigate the behavior of the asphalt binder and th
Adhesive joints are widely used in precision electromechanical products,and their bonding process has significant effects on the performance of an assembled product.This paper presents a numerical study on the bonding assembly of a sleeve structure of a p
This paper presents a multi-person vision tracking approach based on human body localization fea-tures to address the problem of interactive object local-ization and tracking in a home monitoring scenario.Firstly,the human body localization model is used
55NiCrMoV7 hot-work die steel is mainly used to manufacture heavy forgings in the fields of aerospace and automobile.This study aims to clarify the effects of heat treatment on the microstructural evolution and mechanical properties of the steel,in order