检索范围:
排序: 展示方式:
Berardo NATICCHIA, Alessandra CORNELI, Alessandro CARBONARI
《工程管理前沿(英文)》 2020年 第7卷 第1期 页码 131-141 doi: 10.1007/s42524-019-0071-y
关键词: information flow management BIM mixed reality common data environment facility management
Hong-feng Chai,Quan Sun
《工程管理前沿(英文)》 2016年 第3卷 第4期 页码 404-413 doi: 10.15302/J-FEM-2016037
关键词: financial information system meta-synthesis methodology bank card information exchange
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
Owner-dominated building information modeling and lean construction in a megaproject
Mingyue LI, Zhuoling MA, Xi TANG
《工程管理前沿(英文)》 2021年 第8卷 第1期 页码 60-71 doi: 10.1007/s42524-019-0042-3
关键词: building information modeling lean construction airports project management
Relationship between Chief Executive Officer characteristics and corporate environmental information
Dayuan LI, Aiqi LIN, Lu ZHANG
《工程管理前沿(英文)》 2019年 第6卷 第4期 页码 564-574 doi: 10.1007/s42524-019-0067-7
关键词: CEO characteristics environmental information disclosure Thailand
杨启亮,邢建春
《中国工程科学》 2023年 第25卷 第5期 页码 222-232 doi: 10.15302/J-SSCAE-2023.07.027
信息系统动力学的基础和应用 Article
许建峰, 刘振宇, 王树良, 郑涛, 王雅实, 王赢飞, 党迎旭
《工程(英文)》 2023年 第27卷 第8期 页码 254-265 doi: 10.1016/j.eng.2022.04.018
Although numerous advances have been made in information technology in the past decades, there is still a lack of progress in information systems dynamics (ISD), owing to the lack of a mathematical foundation needed to describe information and the lack of an analytical framework to evaluate information systems. The value of ISD lies in its ability to guide the design, development, application, and evaluation of large-scale information system-of-systems (SoSs), just as mechanical dynamics theories guide mechanical systems engineering. This paper reports on a breakthrough in these fundamental challenges by proposing a framework for information space, improving a mathematical theory for information measurement, and proposing a dynamic configuration model for information systems. In this way, it establishes a basic theoretical framework for ISD. The proposed theoretical methodologies have been successfully applied and verified in the Smart Court SoSs Engineering Project of China and have achieved significant improvements in the quality and efficiency of Chinese court informatization. The proposed ISD provides an innovative paradigm for the analysis, design, development, and evaluation of large-scale complex information systems, such as electronic government and smart cities.
关键词: System-of-systems engineering Information theory Information measurement Information systems dynamics Judicial informatization
孙九林
《中国工程科学》 2000年 第2卷 第3期 页码 87-91
21世纪人类将跨人信息农业的时代。信息农业将成为合理开发利用农业资源、提高农作物产量、降低成本、减少环境污染、提高农产品国际市场竞争力的前沿研究领域,并获得实施。专家预见,生物技术和信息技术,将是我国21世纪农业技术革命的两大技术支柱,是实现农业现代化的保证。文章对农业信息科学的产生、理论基础、主要研究内容,农业信息的主要技术内容,农业信息工程的理论、技术体系,现阶段农业信息工程主要实施的领域等做了阐述;指出面向21世纪的中国农业信息科学、技术和工程应该瞄准国际前沿,实现跨越式的发展,通过对农业信息工程的开发,加快我国农业现代化的进程。
Building information modeling and its impact on users in the lifeworld: A mediation perspective
Hans VOORDIJK
《工程管理前沿(英文)》 2019年 第6卷 第2期 页码 193-206 doi: 10.1007/s42524-019-0013-8
关键词: building information modeling mediation enframing lifeworld rationalization Heidegger Habermas Ihde
WANG Geng, WU Wei
《环境科学与工程前沿(英文)》 2007年 第1卷 第4期 页码 471-476 doi: 10.1007/s11783-007-0075-4
关键词: environmental Eco-security assessment resource Geographic information non-linear
Weak characteristic information extraction from early fault of wind turbine generator gearbox
Xiaoli XU, Xiuli LIU
《机械工程前沿(英文)》 2017年 第12卷 第3期 页码 357-366 doi: 10.1007/s11465-017-0423-4
Given the weak early degradation characteristic information during early fault evolution in gearbox of wind turbine generator, traditional singular value decomposition (SVD)-based denoising may result in loss of useful information. A weak characteristic information extraction based on µ-SVD and local mean decomposition (LMD) is developed to address this problem. The basic principle of the method is as follows: Determine the denoising order based on cumulative contribution rate, perform signal reconstruction, extract and subject the noisy part of signal to LMD and µ-SVD denoising, and obtain denoised signal through superposition. Experimental results show that this method can significantly weaken signal noise, effectively extract the weak characteristic information of early fault, and facilitate the early fault warning and dynamic predictive maintenance.
关键词: wind turbine generator gearbox µ-singular value decomposition local mean decomposition weak characteristic information extraction early fault warning
Display Week of Society for Information Display国际显示大会
会议日期: 2019年05月12日
会议地点: 美国/加利福尼亚/圣何塞
主办单位: SID总会
Connecting Information to Promote Public Health
Xue-mei Su,Jia Zhao
《工程管理前沿(英文)》 2016年 第3卷 第4期 页码 384-389 doi: 10.15302/J-FEM-2016054
Overview of research on carbon information disclosure
Yue-Jun ZHANG, Jing-Yue LIU
《工程管理前沿(英文)》 2020年 第7卷 第1期 页码 47-62 doi: 10.1007/s42524-019-0089-1
关键词: climate change carbon emissions reduction carbon information disclosure green development
标题 作者 时间 类型 操作
Framework based on building information modeling, mixed reality, and a cloud platform to support information
Berardo NATICCHIA, Alessandra CORNELI, Alessandro CARBONARI
期刊论文
Research on the Giant and Complex Financial Information System Engineering Management from the Perspectiveof Meta-synthesis Methodology—with the Bank Card Information Exchange System Engineering as a Sample
Hong-feng Chai,Quan Sun
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
Owner-dominated building information modeling and lean construction in a megaproject
Mingyue LI, Zhuoling MA, Xi TANG
期刊论文
Relationship between Chief Executive Officer characteristics and corporate environmental information
Dayuan LI, Aiqi LIN, Lu ZHANG
期刊论文
Building information modeling and its impact on users in the lifeworld: A mediation perspective
Hans VOORDIJK
期刊论文
Spatial distribution of ecological security status assessment of West-Liaohe River based on geographic information
WANG Geng, WU Wei
期刊论文
Weak characteristic information extraction from early fault of wind turbine generator gearbox
Xiaoli XU, Xiuli LIU
期刊论文
Display Week of Society for Information Display国际显示大会
2019年05月12日
会议信息