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145 results on '"Hong, Jianfeng"'

5. The Study of High-Order Force on Electromagnetic Vibration of PMSMs

Author

Hong, Jianfeng, Wang, Shanming, Sun, Yuguang, Cao, Haixiang, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Yang, Qingxin, editor, Liang, Xidong, editor, Li, Yaohua, editor, and He, Jinghan, editor

Published
2022
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18. DYNAMIC UNBALANCE DETECTION OF CARDAN SHATF IN HIGH-SPEED TRAIN BASED ON MODIFIED VARIATIONAL MODE DECOMPOSITION

Author

HONG JianFeng, DING JianMing, LIN JianHui, and ZHENG ShuBin

Subjects
Cardan shaft, Dynamic unbalance, MVMD, Information entropy difference, Mechanical engineering and machinery, TJ1-1570, Materials of engineering and construction. Mechanics of materials, TA401-492
Abstract

Aiming at the adverse influence of penalty parameter and mode number on the VMD（ variational mode decomposition）,a newly MVMD（ modification variational mode decomposition） was proposed through the information entropy difference. The change of the amount of information in each mode extraction characteristic of information entropy difference was analyzed. The information entropy difference under the condition of different penalty parameters was got through making full use of the analysis result of extraction characteristic. The excellent penalty parameter was determined in the position of jumpy information entropy difference. The Fourier spectrum of MVMD was used to detect the unbalance of Cardan shaft in high-speed train. The method and model was verified through the unbalance experiment data. The experiment results show that this method could effectively seize the basic frequency,multi-frequency fault features. With comparison to VMD,the problem of Parameter selection has been solved. With comparison to the classic ensemble empirical model decomposition,the fault detection ability has been significantly improved.

Published
2017
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23. The complete mitochondrial genome of Choristoneura metasequoiacola Liu,1983 (Lepidoptera: Tortricidae)

Author

Liang, Yun, Fang, Xinyuan, Zheng, Lingzhi, Wu, Hongmin, He, Zewei, Xiong, Zhongwu, Hong, Jianfeng, Ai, Xunru, and Liang, Guanghong

Abstract

Choristoneura metasequoiacola Liu, 1983 is an important caterpillar species that specifically infests the leaves and branches of Metasequoia glyptostroboides Hu & W. C. Cheng 1948 with short larval infestations, long-term dormancy, and has a limited distribution in Lichuan, Hubei, China. The complete mitochondria genome of C. metasequoiacola was determined by using Illumina NovaSeq, and analyzed based on previously annotated sibling species. In total, we obtained mitochondria genome with 15,128 bp in length, circular in shape with a double-stranded closed ring structure, including 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, and an AT-rich region. Of which the nucleotide composition was highly A + T biased, accounting for 81.98% of the whole mitogenome. Thirteen protein-coding genes (PCGs) were 11,142 bp; Twenty-two tRNA genes and AT-rich region were 1,472 and 199 bp, respectively. Phylogenetically, the relationship between Choristoneura spp. (containing C. metasequoiacola) and Adoxophyes spp. was closer than any other two genera from Tortricidae, and the relationship between C. metasequoiacola and C.murinana was the closest among nine sibling species from that genus, which helps to explain species evolution within the family Tortricidae.

Published
2023
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24. Entwurf und Implementierung eines interaktiven multimedialen deutsch-chinesischen Sprachtrainingssystems

Author

Dai, Kechang, Hong, Jianfeng, and Xu, Wenxiao

Abstract

采用现代教学手段提高教学效果是目前世界汉语教学的动向之一。由联邦德国石一菏州教育部资助，吕贝克应用科学大学、上海交通大学和上海电视大学联合进行的研究开发项目 “多媒体汉语教学系统“ 乃是在此方向上的一次探索。 除了教材以外，多媒体语言教学系统必须为学习者提供一个完整的仿真语言环境，因此本文的核心是介绍这个语言环境的构筑。文中首先简单介绍了课题目标，进而提出该系统为实现这一目标所必须满足的几项具体要求，其中包括如何使不具备电脑知识的用户能方便地使用本系统。文中着重介绍了本系统用户界面、课程导向系统以及智能词汇训练器的设计。此外，还对系统个性化问题，即如何根据用户需要及学习进程调整系统的适配性，及其在本系统中的实现，作了探讨。对实现过程中遇到的技术问题本文也做了简短的介绍。 最后，本文分析了多媒体语言教学系统的优点和局限之处，指出多媒体系统并不能完全取代教师的职能，也不适合用作 “泛读“ 材科。, CHUN - Chinesischunterricht, Bd. 18 (2003): CHUN - Chinesischunterricht

Published
2022
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