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水杨酰胺型稀土配合物的合成、结构及荧光性质研究 会议论文
甘肃省化学会第二十五届年会、第七届甘肃省中学化学教学经验交流会
作者:  宋学琴;  刘伟生;  窦伟;  臧志鹏;  郑江荣
收藏  |  浏览/下载：2/0  |  提交时间：2015/06/25
离子液体微乳液的临界行为 会议论文
中国化学会第十一届胶体与界面化学会议
作者:  吕辉鸿;  安学勤;  沈伟国
收藏  |  浏览/下载：2/0  |  提交时间：2015/06/25
Liquid-liquid extraction of protactinium(V) using tri-iso-octylamine 会议论文
作者:  Ding, H. J.;  Niu, Y. N.;  Xu, Y. B.;  Yang, W. F.;  Yuan, S. G.
收藏  |  浏览/下载：6/0  |  提交时间：2018/08/20
Determination of citalopram in human plasma with LC-MS/MS method and its bioequivalent evaluation 会议论文
作者:  Cao, Xue-qin;  Chen, Xiao-yan;  Zhang, Yi-fan;  Zhong, Da-fang
收藏  |  浏览/下载：8/0  |  提交时间：2019/01/08
ECiSS: A Middleware Based Development Framework for Enhancing Collaboration in Surgical Simulation 会议论文
IEEE ICIT 2007 - 2007 IEEE International Conference on Integration Technology, Shenzhen, China
Sze-Wai Tang; King-Lung Chong; Jing Qin; Yim-Pan Chui; Simon Sze-Ming Ho; Pheng-Ann Heng
收藏  |  浏览/下载：19/0  |  提交时间：2015/08/18
Orthopedics Surgery Trainer with PPU-accelerated Blood and Tissue Simulation 会议论文
Medical Image Computing and Computer-Assisted Intervention - MICCAI 2007
Wai-Man Pang; Jing Qin; Yim-Pan Chui; Tien-Tsin Wong; Kwok-Sui Leung; Pheng-Ann Heng
收藏  |  浏览/下载：17/0  |  提交时间：2015/08/18
A Sparse Component Analysis Algorithm based on Finite-Mixture-Model Learning 会议论文
Proceedings of the 2007 IEEE International Conference on Integration Technology, Shenzhen, China
Jianzhao Qin; Zhi Wang; Hanqing Hu; Jun Cheng; Xinyu Wu; Yangsheng Xu
收藏  |  浏览/下载：12/0  |  提交时间：2015/08/18
Visual Tracking based on Region Correlation Descriptor 会议论文
Proceedings of the 2007 IEEE International Conference on Integration Technology, Shenzhen, China
Hanqing Hu; Yaping Lin; Jianzhao Qin; Jun Cheng; Xinyu Wu; Yangsheng Xu
收藏  |  浏览/下载：11/0  |  提交时间：2015/08/18
The spectral feature analysis of semiconductor thin disk laser (EI CONFERENCE) 会议论文
Optoelectronic Materials and Devices II, November 2, 2007 - November 5, 2007, Wuhan, China
He C.-F.; Qin L.; Li J.; Cheng L.-W.; Liang X.-M.; Ning Y.-Q.; Wang L.-J.
收藏  |  浏览/下载：18/0  |  提交时间：2013/03/25
The semiconductor thin disk laser is a new type of semiconductor laser. This work gives the basic operation function of semiconductor disk laser  and analyses the heat effect by the experimentally measured photoluminescence spectrum of the laser chip at different pump power and different temperature. We can see that: with increasing pump power  the thermal effects of the gain material becomes seriously and causes the saturation of carrier lifetime  so the electron-hole pair created in the absorbtion layer have no enough time to rate to one of the wells  and the non-radiative recombination happens in the barrier. When the thermal effects becomes stronger  the chip will not lasing. This phenomenon is from the smaller energy offset between barrier and quantum well. We optimize the original structure design and experimental technology. A non-absorbing AlGaAs layer who is transparent to the pumping and laser wavelength is added to confine the carriers in the quantum wells. At the same time a DBR with double reflecting band is induced to improve the absorbing efficiency of the pumping light. The single QW is replaced by the three narrow QWs  This three QWs structure can add the quantum state of QW  increase the recombination probability of carriers in the QWs and reduce the heat effect. The chemical etch equipment is also improved to control the surface unevenness to be within 50 nm.  

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