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浏览/检索结果: 共251条，第1-10条 帮助 限定条件 发表日期：2019    专题：兰州理工大学    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Fault feature extraction of rotating machinery based on EWT and a weighted multi neighborhood rough set 期刊论文 Zhendong yu Chongji/Journal of Vibration and Shock, 2019, 卷号: 38, 期号: 24, 页码: 235-242 作者:  Wu, Yaochun;  Zhao, Rongzhen;  Jin, Wuyin 收藏  |  浏览/下载：12/0  |  提交时间：2020/11/14 Classification (of information)  Extraction  Iterative methods  Probability  Rotating machinery  Rough set theory  Time domain analysis  Wavelet transforms  Characteristics of vibrations  Empirical wavelet transform(EWT)  Fault feature extractions  Feature selection methods  Multiple neighborhoods  Neighborhood rough sets  Probability of occurrence  Time domain characteristics   Prediction error analysis of wind power based on clustering and non-parametric kernel density estimation 期刊论文 Taiyangneng Xuebao/Acta Energiae Solaris Sinica, 2019, 卷号: 40, 期号: 12, 页码: 3594-3604 作者:  Zhang, Xiaoying;  Zhang, Xiaomin;  Liao, Shun;  Chen, Wei;  Wang, Xiaolan 收藏  |  浏览/下载：17/0  |  提交时间：2020/11/14 Cluster analysis  Errors  Iterative methods  Probability distributions  Statistics  Weather forecasting  Wind power  Fitting accuracy  Non-parametric estimations  Segmental clustering  Wind power forecast  Window width   Arc behavior of flux bands constricting arc welding for high strength steel sandwich panels T-joints 期刊论文 Hanjie Xuebao/Transactions of the China Welding Institution, 2019, 卷号: 40, 期号: 12, 页码: 83-90 作者:  Chen, Zhenwen;  Wang, Lei;  Rui, Zhenglei;  Qiao, Jisen 收藏  |  浏览/下载：3/0  |  提交时间：2020/11/14 Electric arcs  Electric welding  Signal processing  Arc behavior  Cross-section morphology  Electric signal  Process parameters  Sandwich plates  T joints  Welding current  Welding process   Combined constant speed control method for a wind generator equipped with hydraulic energy storage 期刊论文 WIND ENERGY, 2019, 卷号: 23, 期号: 3, 页码: 486-500 作者:  Han, Xiaoxia;  Wei, Liejiang;  Feng, Yongbao;  Wang, Gang;  Liu, Zengguang 收藏  |  浏览/下载：6/0  |  提交时间：2020/06/16 accumulator-controlled hydraulic motor  anti-interference  combined constant speed control  hydraulic energy storage   Characteristics of Stable Isotopes and Analysis of Water Vapor Sources of Precipitation at the Northern Slope of the Qilian Mountains 期刊论文 Huanjing Kexue/Environmental Science, 2019, 卷号: 40, 期号: 12, 页码: 5272-5285 作者:  Zhang, Bai-Juan;  Li, Zong-Xing;  Wang, Yu;  Li, Yong-Ge;  Lü, Yue-Min 收藏  |  浏览/下载：9/0  |  提交时间：2020/11/14 Evaporation  Isotopes  Landforms  Temperature  Water piping systems  Water vapor  Annual precipitation  Evaporation rate  Evolution of precipitation  Meteoric water lines  Meteorological factors  Precipitation effects  Precipitation samples  Seasonal changes   The effects of substrate dilution on the microstructure and wear resistance of PTA Cu-Al-Fe aluminium bronze coatings 期刊论文 Wear, 2019, 卷号: 440-441 作者:  Kucita, P.;  Wang, S.C.;  Li, W.S.;  Cook, R.B.;  Starink, M.J. 收藏  |  浏览/下载：18/0  |  提交时间：2020/11/14 Aluminum alloys  Aluminum coatings  Binary alloys  Bronze  Diffusion coatings  Dilution  Hard facing  Martensite  Microstructure  Piles  Plasma torches  Plasma welding  Precious metal alloys  Ternary alloys  Wear of materials  Wear resistance  Bronze coating  Deposition current  High wear resistance  Medium carbon steel substrate  Plasma transferred arc  Sliding properties  Sliding wear  Wear characteristics   Low-Complexity OB-MMSE Detection Algorithm for Generalized Wireless-Optical Spatial Modulation 期刊论文 Guangxue Xuebao/Acta Optica Sinica, 2019, 卷号: 39, 期号: 12 作者:  Cao, Minghua;  Song, Lihua;  Wang, Huiqin;  Wang, Daobin 收藏  |  浏览/下载：8/0  |  提交时间：2020/11/14 Bit error rate  Computational complexity  Error detection  Genetic algorithms  Mean square error  Monte Carlo methods  Optical communication  Optical signal processing  Signal detection  Turbulence  Log-normal  Minimum mean square error algorithms  Minimum mean square errors  Signal detection algorithm  Spatial modulations  Threshold selection  Transmission rates  Wireless optical communication   Study on Human Welder's Adjustment Behavior Based on Coupled Model of Weld Torch and Weld Pool 期刊论文 Jixie Gongcheng Xuebao/Journal of Mechanical Engineering, 2019, 卷号: 55, 期号: 23, 页码: 48-54 作者:  Zhang, Gang;  Shi, Yu;  Fan, Ding;  Zhang, Weijie 收藏  |  浏览/下载：2/0  |  提交时间：2020/11/14 Electric welding  Errors  Flow of fluids  Intelligent robots  Intelligent well technology  Robot programming  Social robots  3-D sensing  Coupled modeling  Dynamic balance  Full penetration  Human welders  Intelligent robotics  Measurement system  Transfer models   Study on Human Welder's Adjustment Behavior Based on Coupled Model of Weld Torch and Weld Pool 期刊论文 Jixie Gongcheng Xuebao/Journal of Mechanical Engineering, 2019, 卷号: 55, 期号: 23, 页码: 48-54 作者:  Zhang, Gang;  Shi, Yu;  Fan, Ding;  Zhang, Weijie 收藏  |  浏览/下载：2/0  |  提交时间：2020/11/14 Electric welding  Errors  Flow of fluids  Intelligent robots  Intelligent well technology  Robot programming  Social robots  3-D sensing  Coupled modeling  Dynamic balance  Full penetration  Human welders  Intelligent robotics  Measurement system  Transfer models   The crystallization, thermal and mechanical properties of nano-Sb2O3 filled poly(butylene terephthalate) 期刊论文 JOURNAL OF VINYL & ADDITIVE TECHNOLOGY, 2019, 卷号: 26, 期号: 3, 页码: 268-281 作者:  Xu, Jianlin;  Kang, Chenghu;  Niu, Lei;  Xu, Chengcheng;  Zhang, Jianbin 收藏  |  浏览/下载：11/0  |  提交时间：2020/06/02 Adhesion  Ball milling  Blending  Crystallinity  Differential scanning calorimetry  Mechanisms  Nanocomposites  Nucleation  Plastic products  Scanning electron microscopy  Tensile strength  Cetyltrimethylammonium bromide  Comprehensive performance  Crystalline characteristic  Interfacial adhesion strength  Mechano-chemical methods  Poly (butylene terephthalate)  Thermal and mechanical properties  Thermogravimetric analyzers