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7条,第1-7条 帮助

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Emerging activated tungsten dust: Source, environmental behaviors, and health effects 期刊论文  OAI收割
ENVIRONMENT INTERNATIONAL, 2024, 卷号: 188
作者:  
Wang, Yuxuan;  Nie, Baojie;  Zheng, Shanliang;  Wu, Hanyu;  Chen, Ni
  |  收藏  |  浏览/下载:7/0  |  提交时间:2024/11/20
An evaluation of force terms in the lattice Boltzmann models in simulating shallow water flows over complex topography 期刊论文  OAI收割
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 2019, 卷号: 90, 期号: 7, 页码: 357, 373
作者:  
Huang, Ping;  Li, Shaotian;  Li, Yineng;  Zeng, Zeyu;  Peng, Shiqiu
  |  收藏  |  浏览/下载:51/0  |  提交时间:2019/09/09
A robust coupled model for solute transport driven by severe flow conditions SCI/SSCI论文  OAI收割
2015
作者:  
Zhang L. L.;  Liang, Q. H.;  Wang, Y. L.;  Yin, J. X.
收藏  |  浏览/下载:60/0  |  提交时间:2015/12/09
THE SLOP FLUX METHOD FOR NUMERICAL BALANCE IN USING ROE'S APPROXIMATE RIEMANN SOLVER 期刊论文  OAI收割
Journal of Hydrodynamics, 2012, 卷号: 24, 期号: 1, 页码: 58-64
Wang D. W.; Liu XiaoFang(刘晓芳); Chen J. G.; Ji Z. W.
收藏  |  浏览/下载:16/0  |  提交时间:2012/09/04
THE SLOP FLUX METHOD FOR NUMERICAL BALANCE IN USING ROE'S APPROXIMATE RIEMANN SOLVER SCI/SSCI论文  OAI收割
2012
Wang D. W.; Liu X. F.; Chen J. G.; Ji Z. W.
收藏  |  浏览/下载:32/0  |  提交时间:2014/12/24
A Cip/Multi-Moment Finite Volume Method For Shallow Water Equations With Source Terms 期刊论文  OAI收割
International Journal for Numerical Methods In Fluids, 2008, 页码: 2245-2270
作者:  
Akoh R;  Ii S;  Xiao F(肖锋)
收藏  |  浏览/下载:786/42  |  提交时间:2009/08/03
All-solid-stated laser controller design based on digital optical feedback (EI CONFERENCE) 会议论文  OAI收割
Lasers in Material Processing and Manufacturing II, November 10, 2004 - November 12, 2004, Beijing, China
作者:  
Liu L.;  Wang J.-L.;  Wang J.-L.;  Liu L.
收藏  |  浏览/下载:28/0  |  提交时间:2013/03/25
The new design about a CW  digital all-solid-stated LD pumped Nd:YVO 4 controller is introduced. The stable output power of this digital laser controller which adopts Digital Signal Processor(TMS320C31) is approximately 20mW. The whole system is composed of constant- current source  protection circuit  pulse-width modulation circuit  Si-photo-detector and amplified circuit and Digital Signal Processor control system  etc. In terms of error deviation Based on nonlinear control curves of LD power output by Si-photo-detector  the region control can be obtained by means of the PID control algorithm in the software platform  that is  error amendment and high stability laser power output can be achieved. And the precision of temperature control can reduce from 0.2C to 0.04C. By adopted integral separated mode PID control algorithm  the LD output power instability ( %) down to 2%. By way of adopting the new digital design  the work to protect the laser diode  including the continuous adjustable output power with high accuracy and stability  is easily obtained. The internal-external modulation control of the laser power based on digital optical feedback can be accomplished with stable power output. At last  the bringing reasons of noise are analyzed and the solving methods are put forward in this paper.