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浏览/检索结果: 共4条，第1-4条 帮助 限定条件 内容类型：会议论文     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 An improved multi-scale autoconvolution transform 会议论文 International Symposium on Optoelectronic Technology and Application 2014, Beijing, China, May 13-15, 2014 作者:  Shao CY(邵春燕);  Ding QH(丁庆海);  Luo HB(罗海波) 收藏  |  浏览/下载：17/0  |  提交时间：2014/12/29 affine invariant feature  Multi-Scale Autoconvolution  N-domain vectors included angle map  N-domain vectors  Angle map   The long-term effect of music on hypertensive patients 会议论文 International Conference on Information Technology and Applications in Biomedicine, Shenzhen 作者:  Teng,X.F.;  Wong,M.Y.M.;  Zhang,Y.T. 收藏  |  浏览/下载：7/0  |  提交时间：2015/08/21 The effects of viscous heating and the pressure-dependent viscosity on liquid flow in microtubes 会议论文 3rd International Conference on Microchannels and Minichannels, Univ Toronto, Toronto, CANADA, JUN 13-15, 2005 作者:  Li ZH(李战华);  Cui HH 收藏  |  浏览/下载：13/0  |  提交时间：2016/06/28 Rare-earth doped tungsten tellurite glasses and waveguides: Fabrication and characterization (EI CONFERENCE) 会议论文 Physics of Non-Crystalline Solids 10, October 15, 2004 - October 15, 2004, Parma, Italy Conti G. N.; Berneschi S.; Bettinelli M.; Brenci M.; Chen B.; Pelli S.; Speghini A.; Righini G. C. 收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25 Tungsten tellurite glasses doped with Er3+  Tm3+  Pr3+  and Ho3+ ions were prepared by melt quenching. The glass matrix was the same for all types of glasses and had a high sodium content in order to allow the fabrication of waveguides using an ion-exchange technique. The absorption spectra of the glasses were measured and the Judd-Ofelt parameters q were obtained from the experimental oscillator strengths of the f &rarr f transitions. Er3+ doped glasses showed a very high quantum efficiency when comparing the calculated radiative decay time with the measured lifetime of the 4I 13/2 metastable level. Ag+ Na+ ion-exchanged planar waveguides were successfully obtained in all types of glasses and characterized by the prism coupling technique. It turned out that the diffusion constant values are very similar for glasses containing different rare-earth ions with the same concentration  while  at least for the Er 3+ doped ones  the diffusion constant changes with the ions concentration. 2004 Elsevier B.V. All rights reserved.