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Germany, part of Springer Nature 2021 Abstract: As the critical equipment, large axial-flow fan (LAF) is used widely in highway tunnels for ventilating. Note that any malfunction of LAF can cause severe... is proposed in this paper. The vibration-electric information fusion, the support vector machine (SVM) with particle swarm optimization (PSO), and the cross-validation (CV) for predicting LAF operation......
一种具有噪声干扰的MIMO非线性时变系统自适应控制张超1,孙启鸣21. 河南工学院计算机科学与技术系2. 东南大学复杂工程系统测量与控制教育部重点实验室摘 要:针对含噪声多输入多输出不确定非线性时变系统,提出一种基于多维泰勒网(MTN)的自适应控制方案,其中两个MTN分别用来实现优化控制和非线性滤波.首先,提出多维泰勒网控制器(MTNC)以实现实时跟踪控制.将滤波输出与期望值之间的闭环误差作为MTNC的输入,根据系统不确定因素引起的误差,基于稳定的学习率,设计线性再励的自适应变步长算法以快速更新MTNC权值.其次,提出多维泰勒网滤波器(MTNF)以消除测量噪声.由于定义了测量值与MTNF输出之间误差的Lyapunov函数,自适应MTN滤波系统兼具基于Lyapunov理论的自适应滤波(LAF)和MTN的......
that the extraordinary two-phase coexistence state of BiF eO 3 and LaF eO 3 was observed in a narrow temperature range of 630–700 oC. The magnetization of the La0.1Bi0.9FeO3 sample was improved by heat treatment......
that the extraordinary two-phase coexistence state of BiF eO 3 and LaF eO 3 was observed in a narrow temperature range of 630–700 oC. The magnetization of the La0.1Bi0.9FeO3 sample was improved by heat treatment......
, high density memories, optical data storage, sensor and energy solar cell, etc. Many series of them, especially the oxyfluorides glasses containing Ba2 LaF 7 nanocrystals were studied in this review......
, high density memories, optical data storage, sensor and energy solar cell, etc. Many series of them, especially the oxyfluorides glasses containing Ba2 LaF 7 nanocrystals were studied in this review......
, 将材料于973K保温1.5h, 于真空炉中冷退火处理. 采用排水法测试复合材料的真实密度, 其与理论密度的比值即为复合材料的致密度. 复合材料热导率测试采用德国Thermal Diffusivity NETZSCH LAF 427 Analysis激光导热分析仪, 样品尺寸为d12.7mm×3.0mm, 两端面用金相砂纸磨光, 测试温度为298~773K, 升温速度为5K/min. 图1......
Characterization of anodic coating formed on Mg-3Nd-0.2Zn-0.4Zr Mg alloy in alkaline electrolyte CHANG Jian-wei(常建卫)1, 2, GUO Xing-wu(郭兴伍)1, PENG Li-ming(彭立明)1, DING Wen-jiang(丁文江)1, PENG Ying-hong(彭颖红)2 1. National Engineering Research Center of Light Alloys Net Forming (LAF), School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240......