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Intelligent diagnosis methods for plant machinery
Huaqing WANG, Peng CHEN, Shuming WANG,
《机械工程前沿(英文)》 2010年 第5卷 第1期 页码 118-124 doi: 10.1007/s11465-009-0084-z
关键词: intelligent diagnosis neural network fuzzy algorithm adaptive filtering plant machinery
《工程管理前沿(英文)》 2023年 第10卷 第2期 页码 285-299 doi: 10.1007/s42524-022-0197-1
关键词: spatiotemporal differentiation industrial agglomeration low-carbon economy construction machinery industry empirical study
Basic research on machinery fault diagnostics: Past, present, and future trends
Xuefeng CHEN, Shibin WANG, Baijie QIAO, Qiang CHEN
《机械工程前沿(英文)》 2018年 第13卷 第2期 页码 264-291 doi: 10.1007/s11465-018-0472-3
Machinery fault diagnosis has progressed over the past decades with the evolution of machineries in terms of complexity and scale. High-value machineries require condition monitoring and fault diagnosis to guarantee their designed functions and performance throughout their lifetime. Research on machinery Fault diagnostics has grown rapidly in recent years. This paper attempts to summarize and review the recent R&D trends in the basic research field of machinery fault diagnosis in terms of four main aspects: Fault mechanism, sensor technique and signal acquisition, signal processing, and intelligent diagnostics. The review discusses the special contributions of Chinese scholars to machinery fault diagnostics. On the basis of the review of basic theory of machinery fault diagnosis and its practical applications in engineering, the paper concludes with a brief discussion on the future trends and challenges in machinery fault diagnosis.
关键词: fault diagnosis fault mechanism feature extraction signal processing intelligent diagnostics
Imbalanced fault diagnosis of rotating machinery using autoencoder-based SuperGraph feature learning
《机械工程前沿(英文)》 2021年 第16卷 第4期 页码 829-839 doi: 10.1007/s11465-021-0652-4
关键词: imbalanced fault diagnosis graph feature learning rotating machinery autoencoder
New method of fault diagnosis of rotating machinery based on distance of information entropy
Houjun SU, Tielin SHI, Fei CHEN, Shuhong HUANG
《机械工程前沿(英文)》 2011年 第6卷 第2期 页码 249-253 doi: 10.1007/s11465-011-0124-3
This paper introduces the basic conception of information fusion and some fusion diagnosis methods commonly used nowadays in rotating machinery. From the thought of the information fusion, a new quantitative feature index monitoring and diagnosing the vibration fault of rotating machinery, which is called distance of information entropy, is put forward on the basis of the singular spectrum entropy in time domain, power spectrum entropy in frequency domain, wavelet energy spectrum entropy, and wavelet space feature entropy in time-frequency domain. The mathematic deduction suggests that the conception of distance of information entropy is accordant with the maximum subordination principle in the fuzzy theory. Through calculation it has been proved that this method can effectively distinguish different fault types. Then, the accuracy of rotor fault diagnosis can be improved through the curve chart of the distance of information entropy at multi-speed.
关键词: rotating machinery information fusion fault diagnosis Information entropy distance of the information entropy
罗建强,张弛
《中国工程科学》 2023年 第25卷 第1期 页码 178-186 doi: 10.15302/J-SSCAE-2023.01.704
Carbon Quotas, Subsidies and Engineering Machinery Remanufacturing
Dong-bin Hu,Chen-xi Xiao,Xiao-hong Chen
《工程管理前沿(英文)》 2016年 第3卷 第1期 页码 50-58 doi: 10.15302/J-FEM-2016014
关键词: competitive closed-loop supply chain government subsidies carbon quota allocation remanufacturing
IN VITRO ACTIVITY OF EXTRACTS OF FIVE MEDICINAL PLANT SPECIES ON PLANT PATHOGENIC FUNGI
《农业科学与工程前沿(英文)》 2021年 第8卷 第4期 页码 635-644 doi: 10.15302/J-FASE -2020343
The antifungal effectiveness of extracts of five medicinal plant species was determined. The inhibitory activity of extracts of Eucalyptus tereticornis, Xanthium sibiricum, Artemisia argyi, Tupistra chinensis and Pyrola calliantha were evaluated against the mycelial growth of the plant pathogenic fungi Aspergillus niger, Botrytis cinerea, Penicillium digitatum, P. expansum, P. italicumand Rhizopus stolonifer. All plant extracts were prepared at 60°C using solvents (either water, 50% ethanol (v/v), 95% ethanol (v/v), ethyl acetate or petroleum ether). Fungicidal effects of all plants tested were confirmed. Different extracts from the same plant species gave different degrees of inhibition. All aqueous extracts had weak or no activity on all fungi tested. Ethyl acetate and 95% ethanol extracts from T. chinensis rhizomes gave greater inhibition and a broader spectrum inhibition than the other extracts. T. chinensis may have potential as a new natural fungicide and may be used for the preservation of agricultural and forestry products such as fruits and vegetables.
关键词: Botrytis cinerea / food preservation / plant diseases / plant pathogenic fungi / Tupistra chinensis
李运华,杨桂林
《中国工程科学》 2005年 第7卷 第9期 页码 25-29
简要综述了工程机械中控制与操纵系统的发展历程和关键技术;提出了基于现场总线控制的网络控制实现功率传输和运动控制与综合的新方案;以应用于上海磁悬浮铁路工程轨道梁搬运的工程机械的计算机控制系统为例,讨论了基于现场总线控制系统(FCS)和PC104车载工控机的车辆计算机网络控制系统的设计方法和控制策略;研究结果为大型车辆与工程机械的控制与操纵提供了新的实现途径。
葛世荣,张晞,薛光辉,任怀伟,王宏伟,庞义辉,范磊
《中国工程科学》 2023年 第25卷 第5期 页码 146-156 doi: 10.15302/J-SSCAE-2023.05.013
Goryachkin’s agricultural mechanics
Vera CHINENOVA
《机械工程前沿(英文)》 2016年 第11卷 第1期 页码 87-94 doi: 10.1007/s11465-016-0378-x
The paper contributes to the development of applied mechanics by establishing a new discipline, namely, agricultural mechanics by academician Vasilii Prohorovich Goryachkin (1868–1935) who was an apprentice of Nikolay Yegorovich Zhukovsky and a graduate of the Moscow University (current known as Moscow State University) and the Imperial Higher Technical School.
关键词: theory of mechanisms and machines agricultural machinery engineering agricultural mechanics
ACTIVITY OF EXTRACTS OF FIVE MEDICINAL PLANT SPECIES ON PLANT PATHOGENIC FUNGI
Shufeng YAO, Jiali XU, Haibo ZHANG, Hong GAO, Shibin SHANG, Dan WANG
《农业科学与工程前沿(英文)》 2021年 第8卷 第4期 页码 635-644 doi: 10.15302/J-FASE-2020343
关键词: Botrytis cinerea food preservation plant diseases plant pathogenic fungi Tupistra chinensis
周晶,青平
《中国工程科学》 2019年 第21卷 第5期 页码 60-66 doi: 10.15302/J-SSCAE-2019.05.019
提高国产农机装备质量是我国农机制造由大到强的必要条件。本文在总结我国农机装备制造业发展现状和存在问题的基础上,突出实证研究,利用来自华中地区的农户调查数据,从硬件质量、适用性和操作便利性、作业效果三方面考察农户对国产农机装备质量的主观评价。结果显示,农机户对国产大中型农机装备钢材质量、发动机质量、耗油量和故障频率的满意度显著低于非国产品牌;不足一半的农机户对国内外大中型农机装备地块匹配度、驾驶员匹配度、遮阳挡雨效果持满意态度;农户对国产农机装备作业速度、作业无遗漏、节省要素的满意度偏低。立足现状、着眼长远,提出组建关键零部件克难攻坚“国家队”、搭建以企业为主体的长效技术创新体系、抢抓智能化和绿色化农机装备研发、重构高等院校农机学科体系等对策建议。
An introduction to the medicinal plant genome project
Shilin Chen, Li Xiang, Xu Guo, Qiushi Li
《医学前沿(英文)》 2011年 第5卷 第2期 页码 178-184 doi: 10.1007/s11684-011-0131-0
HEMIPTERAN-TRANSMITTED PLANT VIRUSES: RESEARCH PROGRESS AND CONTROL STRATEGIES
《农业科学与工程前沿(英文)》 2022年 第9卷 第1期 页码 98-109 doi: 10.15302/J-FASE-2021389
About 80% of plant viruses are transmitted by specific insect vectors, especially hemipterans with piercing-sucking mouthparts. Many virus-transmitting insects are also important crop pests that cause considerable losses in crop production. This review summarizes the latest research findings on the interactions between plant viruses and insect vectors and analyzes the key factors affecting insect transmission of plant viruses from the perspectives of insect immunity, insect feeding, and insect symbiotic microorganisms. Additionally, by referring to the latest applications for blocking the transmission of animal viruses, potential control strategies to prevent the transmission of insect-vectored plant viruses using RNAi technology, gene editing technology, and CRISPR/Cas9+ gene-driven technology are discussed.
关键词: control strategies / feeding / immunity / insect vector / microorganism / plant virus
标题 作者 时间 类型 操作
low-carbon economy considering spatiotemporal differentiation: An empirical study in China’s construction machinery
期刊论文
Basic research on machinery fault diagnostics: Past, present, and future trends
Xuefeng CHEN, Shibin WANG, Baijie QIAO, Qiang CHEN
期刊论文
Imbalanced fault diagnosis of rotating machinery using autoencoder-based SuperGraph feature learning
期刊论文
New method of fault diagnosis of rotating machinery based on distance of information entropy
Houjun SU, Tielin SHI, Fei CHEN, Shuhong HUANG
期刊论文
Carbon Quotas, Subsidies and Engineering Machinery Remanufacturing
Dong-bin Hu,Chen-xi Xiao,Xiao-hong Chen
期刊论文
ACTIVITY OF EXTRACTS OF FIVE MEDICINAL PLANT SPECIES ON PLANT PATHOGENIC FUNGI
Shufeng YAO, Jiali XU, Haibo ZHANG, Hong GAO, Shibin SHANG, Dan WANG
期刊论文