机构

• 数学与系统科学研究院 [2]
• 长春光学精密机械与物... [1]
• 自动化研究所 [1]
• 近代物理研究所 [1]

采集方式

• OAI收割 [5]

内容类型

• 期刊论文 [4]
• 会议论文 [1]

发表日期

• 2020 [1]
• 2014 [1]
• 2011 [1]
• 2007 [1]
• 2004 [1]

学科主题

筛选

浏览/检索结果: 共5条，第1-5条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Multinucleon transfer dynamics in nearly symmetric nuclear reactions 期刊论文  OAI收割 NUCLEAR SCIENCE AND TECHNIQUES, 2020, 卷号: 31, 期号: 6, 页码: 8 作者:  Niu, Fei;  Chen, Peng-Hui;  Cheng, Hui-Gan;  Feng, Zhao-Qing   |  收藏  |  浏览/下载：30/0  |  提交时间：2022/01/18 Dinuclear system model  Multinucleon transfer reactions  Symmetric nuclear collisions  Angular distribution   Testing inequality constraints in a linear regression model with spherically symmetric disturbances 期刊论文  OAI收割 JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2014, 卷号: 27, 期号: 6, 页码: 1204-1212 作者:  Zhu Rong;  Zhou Sherry Z F   |  收藏  |  浏览/下载：15/0  |  提交时间：2021/01/14 SQUARED ERROR LOSS  SAMPLING PERFORMANCE  RESTRICTED ESTIMATOR  HYPOTHESIS  PRETEST  COEFFICIENTS  PARAMETER  VARIANCE  PRICES  Inequality constraint  spherically symmetric distribution  Wald test   Distribution estimation with smoothed auxiliary information 期刊论文  OAI收割 ACTA MATHEMATICAE APPLICATAE SINICA-ENGLISH SERIES, 2011, 卷号: 27, 期号: 1, 页码: 167-176 作者:  Liu, Xu;  Ishfaq, Ahmad   |  收藏  |  浏览/下载：21/0  |  提交时间：2018/07/30 Auxiliary information  Empirical likelihood  Estimating equations  Smoothed estimating function  Symmetric distribution   High power VCSEL device with periodic gain active region (EI CONFERENCE) 会议论文  OAI收割 Optoelectronic Materials and Devices II, November 2, 2007 - November 5, 2007, Wuhan, China 作者:  Zhang Y.;  Liu Y.;  Liu Y.;  Liu Y.;  Qin L. 收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25 High power vertical cavity surface emitting lasers with large aperture have been fabricated through improving passivation  lateral oxidation and heat dissipation techniques. Different from conventional three quantum well structure  a periodic gain active region with nine quantum wells was incorporated into the VCSEL structure  with which high efficiency and high power operation were expected. The nine quantum wells were divided into three groups with each of them located at the antinodes of the cavity to enhance the coupling between the optical field and the gain region. Large aperture and bottom-emitting configuration was used to improve the beam quality and the heat dissipation. A maximum output power of 1.4W was demonstrated at CW operation for a 400m-diameter device. The lasing wavelength shifted to 995.5nm with a FWHM of 2nm at a current of 4.8A due to the internal heating and the absence of active water cooling. A ring-shape farfield pattern was induced by the non-homogeneous lateral current distribution in large diameter device. The light intensity at the center of the ring increased with increasing current. A symmetric round light spot at the center and single transverse mode operation with a divergence angle of 16 were observed with current beyond 4.8A.   Symmetric PH and EP distributions and their applications to the probability Hough transform 期刊论文  OAI收割 COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2004, 卷号: 47, 期号: 6-7, 页码: 823-844 作者:  Li, QL;  Wang, GH;  Zhou, Y 收藏  |  浏览/下载：25/0  |  提交时间：2015/11/08 PH distribution  symmetric PH distribution  symmetric EP distribution  orthogonal basis  Laguerre polynomial  computer vision  pattern recognition  image analysis  the probability Hough transform