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浏览/检索结果: 共14条，第1-10条 帮助

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Novel differential pumping system with extended sampling range: Design and application in the EAST tokamak 期刊论文  OAI收割
VACUUM, 2024, 卷号: 227
作者:  Sun, Hao;  Yu, Yaowei;  Wang, Chao;  Pan, Hao;  Fan, Bin
  |  收藏  |  浏览/下载：5/0  |  提交时间：2024/11/22
Progress of engineering design of CFETR vacuum systems 期刊论文  OAI收割
FUSION ENGINEERING AND DESIGN, 2022, 卷号: 177
作者:  Hu, J. S.;  Cao, Z.;  Zuo, G. Z.;  Yuan, J. S.;  Zhuang, H. D.
  |  收藏  |  浏览/下载：53/0  |  提交时间：2022/05/16
Automatic Recognition of Sucker-Rod Pumping System Working Conditions Using Few-Shot Indicator Diagram Based on Meta-learning 会议论文  OAI收割
Chicago, May 26-28, 2021
作者:  He YP(贺云鹏);  Zang CZ(臧传治);  Zeng P(曾鹏);  Wang MX(王明新);  Wan GX(万广喜)
  |  收藏  |  浏览/下载：39/0  |  提交时间：2021/08/21
Automatic recognition of sucker-rod pumping system working conditions using dynamometer cards with transfer learning and svm 期刊论文  OAI收割
SENSORS, 2020, 卷号: 20, 期号: 19, 页码: 1-15
作者:  Cheng HB(程海波);  Yu HB(于海斌);  Zeng P(曾鹏);  Osipov, Evgeny;  Li SC(李世超)
  |  收藏  |  浏览/下载：21/0  |  提交时间：2020/10/18
Accelerometer-based Stroke Length Estimation of Sucker-Rod Pumping System in Smart Field 会议论文  OAI收割
Shanghai, China, November 6-8, 2024
作者:  Cheng HB(程海波);  Yu HB(于海斌);  Zeng P(曾鹏);  Song CH(宋纯贺)
  |  收藏  |  浏览/下载：37/0  |  提交时间：2021/03/14
Development and integration of a 50 Hz pellet injection system for the Experimental Advanced Superconducting Tokamak (EAST) 期刊论文  OAI收割
FUSION ENGINEERING AND DESIGN, 2017, 卷号: 114, 期号: 无, 页码: 40-46
作者:  Yao, Xingjia;  Chen, Yue;  Hu, Jiansheng;  Vinyar, Igor;  Lukin, Alexander
收藏  |  浏览/下载：23/0  |  提交时间：2018/05/02
Theoretical simulation of Rb-87 absorption spectrum in a thermal cell 期刊论文  OAI收割
CHINESE PHYSICS B, 2016, 卷号: 25, 期号: 11
作者:  Cheng, Hong;  Zhang, Shan-Shan;  Xin, Pei-Pei;  Cheng, Yuan;  Liu, Hong-Ping
收藏  |  浏览/下载：20/0  |  提交时间：2017/03/16
Research for a clean and large throughput differential pumping system 期刊论文  OAI收割
CHINESE PHYSICS C, 2008, 卷号: 32, 期号: Suppl. 1, 页码: 59-61
作者:  Meng Jun;  Yang Xiao-Tian;  Zhang Su-Ping;  Chu Ji-Guo
  |  收藏  |  浏览/下载：25/0  |  提交时间：2010/10/29
808nm high-power high-efficiency GaAsP/GaInP laser bars (EI CONFERENCE) 会议论文  OAI收割
Optoelectronic Materials and Devices III, October 27, 2008 - October 30, 2008, Hangzhou, China
作者:  Wang Y.;  Wang L.;  Wang L.;  Wang L.;  Liu Y.
收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25
808nm high power diode lasers  which is rapidly maturing technology technically and commercially since the introduction in 1999 of complete kilowatt-scale diode laser systems  have important applications in the fields of industry and pumping solid-state lasers (DPSSL). High power and high power conversion efficiency are extremely important in diode lasers  and they could lead to new applications where space  weight and electrical power are critical. High efficiency devices generate less waste heat  which means less strain on the cooling system and more tolerance to thermal conductivity variation  a lower junction temperature and longer lifetimes. Diode lasers with Al-free materials have superior power conversion efficiency compared with conventional AlGaAs/GaAs devices because of their lower differential series resistance and higher thermal conductivity. 808nm GaAsP/GalnP broad-waveguide emitting diode laser bars with 1mm cavity length have been fabricated. The peak power can reach to 100.9W at 106.5A at quasicontinuous wave operation (200s  1000Hz). The maximum power conversion efficiency is 57.38%. Based on these high power laser bars  we fabricate a 1 3 arrays  the maximum power is 64.3 W in continuous wave mode when the current is 25.0A. And the threshold current is 5.9A  the slope efficiency is 3.37 W/A. 2008 SPIE.  
Analysis of spectrum narrowing of diode laser bar (EI CONFERENCE) 会议论文  OAI收割
Semiconductor Lasers and Applications III, November 12, 2007 - November 13, 2007, Beijing, China
作者:  Liu Y.;  Wang L.;  Wang L.;  Wang L.;  Liu Y.
收藏  |  浏览/下载：18/0  |  提交时间：2013/03/25
Laser diode bar (LDB) are used increasingly often for many applications  but spectral bandwidth of LDB are generally approximately 2-4nm  far too wide for many demanding applications  e.g. spin-exchange optical pumping  terahertz generation  and lidar. External-cavity feedback can improve the spectral properties of LD or LDB. However  spectrum narrowing of LDB is more difficult than that of LD. Bar curvature (i.e. "smile") produced in the manufacturing process affects the spectrum narrowing greatly. By geometrical optics approach and ORIGIN software  smile which can be corrected by plano-convex cylindrical lens is simulated and the result is in good agreement with experiment. The selection of grating which is also a critical factor of spectrum narrowing will be stated. Finally  an external cavity consisting of fast axis collimator  two plano-convex cylindrical lens and a diffraction grating is used. The scheme is implemented on a 19-element LDB and yields 3-fold reduction in spectral linewidth under the situation that all optical elements in the system which are not optimized. Further  we use a slit in the experiment and analyze the spectrum narrowing of each element in LDB.