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Low Loss S-Bend Structure With Tapered Curved Waveguides

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光学学报 2003年第S1期23卷 301-302页

作者： Yu-Pin Liao Ruei-Chang Lu (Department of electronic engineering, Ching Yun Institute of Technology, 229, Chien-Hsin Rd., Jung-Li,Taoyuan, 32020,Taiwan, tel: 886-03-4581196, Fax: 886-03-4588924, e-mail: Iyp@mail.cyit.edu.tw) ( Department of electronic engineering, I-Lan Institute of Technology, 1, Shen-Nung Rd., ILan, 260,Taiwan) Department of electronic engineering Ching Yun Institute of Technology 229 Chien-Hsin Rd. Jung-LiTaoyuan 32020Taiwan Department of electronic engineering I-Lan Institute of Technology 1 Shen-Nung Rd. ILan 260Taiwan

A novel S-bend with tapered curved waveguides is proposed. The normalized transmitted power is greater than the conventional bend with weakly guided waveguides. Small size and low loss can be reached by the proposed S... 详细信息

关键词： for et in with Te Low Loss S-Bend Structure With Tapered Curved Waveguides of from TM than

Study of Mode Characteristics for equilateral Triangle Semiconductor Microlasers

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光学学报 2003年第S1期23卷 329-330页

作者： Qiao-Yin Lu, Xiao-Hong Chen, Wei-Hua Guo, Li-Juan Yu, Yong-Zhen Huang State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing 100083, China, tel: 010-82304524, e-mail: luqy@redsemi.ac.cnJian Wang and Yi LuoState Key Laboratory of Integrated Optoelectronics, Department of electronic engineering, Tsinghua University, Beijing 100084, China State Key Laboratory on IntegratedOptoelectronics Institute of SemiconductorsChinese Academy of Sciences P.O. Box 912 Beijing 100083China State Key Laboratory of Integrated Optoelectronics Department of Electronic EngineeringTsinghua University Beijing 100084China

InGaAsP semiconductor eTR microlasers with side length of 5 and 10 um are fabricated by ICP etching. The peaks in photoluminenscent spectra corresponding to longitudinal modes are observed with the interval consisting... 详细信息

关键词： for in on with ICP Study of Mode Characteristics for equilateral Triangle Semiconductor Microlasers of

2D KINeTICS OF SURFACe-BOUND P-SeLeCTIN/LIGAND INTeRACTIONS

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2D KINETICS OF SURFACE-BOUND P-SELECTIN/LIGAND INTERACTIONS

The 6th International Conference on Biomedical engineering and Rehabilitation engineering

作者： Jun Huang, Juan Chen, Cheng Zhu, and Mian LongNational Microgravity Laboratory/CAS, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, and George W. Woodruff School of Mechanical engineering and Wallace H. Coulter Department of Biomedical engineering, Georgia Institute of Technology,Atlanta, GA 30332, USA.*e-mail: mlong@*** tel. 10-62613540

＜正＞ AbstractKinetics of P-selectin binding to carbohydrate ligands was measured using a micropipetaspiration assay. Reaction rates and binding affinity were estimated from the experimentaldata using a small system ...

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New Classes of Interconnection Topology Structures and Their Properties

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Wuhan University Journal of Natural Sciences 1996年第Z1期1卷 371-385页

作者： Hong Zhu Zheng Sun(Department of Computer Science, Fudan University, Shanghai 200133, China)(tel. +86 21 65492222-2821 or 65482082 Fax. +86 21 65490475 telex. 33317 HUAFU CN e-mail: hzhu@*** or sum@math.vanderbilt.edu)

In the first part of this- paper, three generalizations of arrangement graph A.,k of [1], namely Bn,k, Cn,k and Dn,k , are introduced. We prove that all the three classes of graphs are vertex symmetric, two of them are edge symmetric. They have great faulty tolerance and high connectivity. We give the diameters of B..k and Cn,k, the Hamiltonian cycle of Cn,k and Hamiltonian path of B.,k. We list several open problems, one of them related to the complexity of sorting algorithm on the arrangement graphs. All these graphs can be thought as generalizations of star graph but are more flexible so that they can be considered as new interconnection network topologies. In the second part of this paper, we provide other four classes of combinatorial graphes, Chn , Cyn, Zhn and Zyn. Many good properties of them, such as high node--connectivity, node symmetry, edge symmetry, diameter, ets., are shown in this paper.

关键词： Combinatorial problem, design of algorithms parallel algorithms faulty tolerance, routing, star graphs, symmetry.

THe DeSIGN AND CLINICAL APPLICATION OF TOTALANKLe PROSTHeSIS WITH PARTIAL TIBIA

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Chinese Journal of Biomedical engineering(english edition) 1998年第3期7卷 131-133页

作者： Bo Zhang Yucheng Zhang Linsheng Xu Yi Wang Weiliang Yang & Guofa Guan(The First Hospital of Harbin Medical University,Harbin 150001, PR China)Hanwen Chen(The 621 Institute of Beijing,Beijing 100095, PR China)tel: 0086-0451-3620038, e-mail: zhangWang@i

The authors applied the first total ankle with partial tibial replacement forthe tumor of the tibia and fibula in 1987. We have followed this case for 10 *** to now, the outcome of this operation is very good, with no tumor recurrenceand good function. According to the experiences, the authors raised the technicalindexes of design, the indications, incision, surgical procedures, and warnings.

关键词： TOTAL THe DeSIGN AND CLINICAL APPLICATION OF TOTALANKLe PROSTHeSIS WITH PARTIAL TIBIA

Continuous micro-optics fabrication using half tone masks and proximity printing

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Continuous micro-optics fabrication using half tone masks an...

Photonics Asia 2004:Information Processing and Data Storage

作者： Chuankai Qiu Changtao Wang Chunlei Du Xiaochun Dong (State Key Lab of Optical Tchnologies for Microfabrication Institute of Optics & electronics Chinese Academy of Science Chengdu 610209 tel: 028-85100889 Fax:028-85100210 e-mail: ckqiu@ioe.ac cn)

It is reported in this paper a method to fabricate three dimensional continuous micro-optical structures using half tone masks and proximity printing. The frequency modulation coded half tone masks ar

关键词： half-tone mask random distributed coding proximity printing

Superplastic behavior of a fine-grained Mg-Gd-Y-Ag alloy processed by equal channel angular pressing

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Journal of Magnesium and Alloys 2023年第10期11卷 3815-3828页

作者： A.Rezaei R.Mahmudi R.e.Logé School of Metallurgical and Materials engineering College of EngineeringUniversity of TehranTehran 14395-515Iran Laboratory of Thermomechanical Metallurgy-PX Group Chair Ecole Polytechnique Fédérale de Lausanne(EPFL)CH-2002 NeuchâtelSwitzerland

An extruded Mg-6Gd-3Y-1.5Ag(wt%) alloy was processed by 6 passes of equal channel angular pressing(eCAP) at 553 K using route Bc to refine the microstructure. electron back-scattered diffraction(eBSD) analysis showed a fully recrystallized microstructure for the extruded alloy with a mean grain size of 8.6 μm. The microstructure of the eCAP-processed alloy was uniformly refined through dynamic recrystallization(DRX). This microstructure contained fine grains with an average size of 1.3 μm, a high fraction of high angle grain boundaries(HAGBs), and nano-sized Mg_(5)Gd-type particles at the boundaries of the DRXed grains, detected by transmission electron microscopy(TeM). High-temperature shear punch testing(SPT) was used to evaluate the superplastic behavior of both the extruded and eCAP-processed alloys by measuring the strain rate sensitivity(SRS) index(m-value). While the highest m-value for the extruded alloy was measured to be 0.24 at 673 K, the eCAP-processed alloy exhibited much higher m-values of 0.41 and 0.52 at 598 and 623 K, respectively,delineating the occurrence of superplastic flow. Based on the calculated average activation energy of 118 kJ mol^(-1) and m-values close to 0.5, the deformation mechanism for superplastic flow at the temperatures of 598 and 623 K for the eCAP-processed alloys was recognized to be grain boundary sliding(GBS) assisted by grain boundary diffusion.

关键词： Mg-Gd-Y alloys equal channel angular pressing Superplasticity Strain rate sensitivity Grain boundary sliding

Inhibitory effect of 3,4-diaryl-3-pyrrolin-2-ones on Cyclooxygenase 1 and 2 in Murine Peritoneal Macrophages

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Inhibitory Effect of 3,4-diaryl-3-pyrrolin-2-ones on Cycloox...

2002全国青年药理学英文学术会议

作者： SHeN Fang, BAI Ai-ping, GUO Zong-ru, CHeNG Gui-fangDepartment of Pharmacology, Institute of Materia Medica, Chinese Academy of MedicalSciences and Peking Union Medical college, Beijing 100050, China.tel: 86-10-63165192, e-mail: chenggf@***

AIM: To develop a cell assay system based on murine peritoneal macrophages for COX-1/COX-2 inhibitor screening and evaluate the inhibitory effect of Rofecoxib, Indomethacin and candidate compounds on COX-1 and COX-2 on the same cells. MeTHODS: Mouse peritoneal macrophages were induced by brewer thioglycollate medium. Macrophages were stimulated with calcimycin or lipopolysaccharide in different dose for various periods. Their abilities to convert endogenous arachidonic acid to its metabolite were examined. The 6-keto-PGF production in response to immediate

关键词： Cyclooxygenase 1 Cyclooxygenase 2 Rofecoxib Indomethacin

Discussions on Some Suggested Solutions to Decrease the Feed-in Tariff of Wind Power

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Discussions on Some Suggested Solutions to Decrease the Feed...

The 3～(rd) World Wind energy Conference & Renewable energy exhibition the 2nd Wind Power Asia

作者： Xie Hongwen Yi Yuechun China Hydropower engineering Consulting Group Co. Liupukang Beijing China tel: (8610)51973439 Fax: (8610)62041598 e-mail: xhwgg@***

After a brief introduction on the current wind power development in our nation, this paper analyzed the reason of the high tariff level from the aspects of cost and income. It also explained the

关键词： Wind Power, Feed-in Tariff, Scale Policy, Tax