中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共9条,第1-9条 帮助

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Knowledge-based digital twin system: Using a knowlege-driven approach for manufacturing process modeling 期刊论文  OAI收割
COMPUTERS IN INDUSTRY, 2024, 卷号: 159, 页码: 21
作者:  
Su, Chang;  Han, Yong;  Tang, Xin;  Jiang, Qi;  Wang, Tao
  |  收藏  |  浏览/下载:13/0  |  提交时间:2024/12/06
Microfabrication of Li4SiO4 pebbles with complex pore structure via digital light processing: Accuracy control and properties optimizing 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2024, 卷号: 54, 页码: 1410-1421
作者:  
Cai, Liang;  Tao, Sirong;  Shen, Zhen;  Wan, Li;  Liu, Ziao
  |  收藏  |  浏览/下载:30/0  |  提交时间:2024/02/20
Impact of digital input on enterprise green productivity: Micro evidence from the Chinese manufacturing industry 期刊论文  OAI收割
JOURNAL OF CLEANER PRODUCTION, 2023, 卷号: 414, 页码: 14
作者:  
Zhang, Wenjie
  |  收藏  |  浏览/下载:27/0  |  提交时间:2023/10/09
Machine-learning-based monitoring and optimization of processing parameters in 3D printing 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF COMPUTER INTEGRATED MANUFACTURING, 2022, 页码: 17
作者:  
Tamir, Tariku Sinshaw;  Xiong, Gang;  Fang, Qihang;  Yang, Yong;  Shen, Zhen
  |  收藏  |  浏览/下载:41/0  |  提交时间:2023/01/09
Parallel Manufacturing for Industrial Metaverses: A New Paradigm in Smart Manufacturing 期刊论文  OAI收割
IEEE/CAA Journal of Automatica Sinica, 2022, 卷号: 9, 期号: 12, 页码: 2063-2070
作者:  
Jing Yang;  Xiaoxing Wang;  Yandong Zhao
  |  收藏  |  浏览/下载:13/0  |  提交时间:2022/12/02
Research on Digital Twin Technology for Production Line Design and Simulation 会议论文  OAI收割
Bangkok, Thailand, June 28-30, 2019
作者:  
Li X(李想);  Du JS(杜劲松);  Wang XL(王晓龙);  Yang, Dongmei;  Yang, Bintao
  |  收藏  |  浏览/下载:73/0  |  提交时间:2019/12/30
The effect on tolerance distributing of an off-axis three mirror anastigmatic optical system with wavefront coding technology (EI CONFERENCE) 会议论文  OAI收割
Optical System Alignment and Tolerancing II, August 10, 2008 - August 11, 2008, San Diego, CA, United states
作者:  
Yan F.;  Zhang X.-J.;  Yan F.
收藏  |  浏览/下载:42/0  |  提交时间:2013/03/25
The wavefront coding technology is known as a system-level technology which can extend the depth of focus of optical system by innovative optical design and image restoration. This technology can control misfocus related aberrations including misfocus  astigmatism  and Petzval curvature  temperature-related misfocus in digital imaging systems. It can also help optical system tolerate more residual error in optical manufacturing and alignment besides misfocus. The brief introduction of wavefront coding technology and the wavefront coded TMA system under research is presented respectively in part 1 and part 2. The "MTF similarity" is defined to describe the relationship among MTF at different position or different fields in the third part. It is also shown in this part that the MTF similarity of wavefront coded system is much higher than the normal system within a large range. In part 4 comparison between the origin system and the new system with wavefront coding technology is provided after multiple errors are introduced  from which it can be observed that the system with wavefront coding technology can tolerate much bigger error than origin system. The error tolerance is re-distributed according to a new criterion based on MTF similarity. If the MTF similarity is less than a certain value  it can be regarded that the system can tolerate the residual error. The new error tolerance is displayed and it is shown that the wavefront coding technology can also loosen the error distributing besides extended the depth of focus.  
Mid-frequency surface error test with a Foucault apparatus (EI CONFERENCE) 会议论文  OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, July 8, 2007 - July 12, 2007, Chengdu, China
作者:  
Li J.;  Li J.;  Xuan B.;  Li J.
收藏  |  浏览/下载:19/0  |  提交时间:2013/03/25
Testing of mid-frequency surface error is of the first importance for fast optics  especially for large aperture aspherics. Foucault test plays a dominant role for surface error inspection before the digital interferometer age  but it seems to have faded out these days because no quantitative results turn out. However  an interferometer with high resolution CCDs is either unavailable or unaccessible in the process of manufacture. As its advantages are realized and recognized for the second time  Foucault test is going back to the stage again. A new theory of calculating the contrast of the shadow pattern of Foucault test is put forward in this paper and some modifications are discussed upon the analyses of the limitation of traditional Foucault apparatus. A paraboloidal mirror was fabricated and tested by the modified Foucault apparatus whose effect has been proved to be great. The methods of controlling mid-frequency error are described in the other paper at this conference- "Multi-mode combine manufacturing technology for large aperture aspheric mirrors"1.  
Study on integration and modeling of digital manufacturing environment for production line 会议论文  OAI收割
3rd International Conference on Electronic Commerce Engineering, HANGZHOU, China, October 24-27, 2003
作者:  
Huang XM(黄雪梅);  Zhao MY(赵明扬)
收藏  |  浏览/下载:23/0  |  提交时间:2012/06/06