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40 Gbit/s Transparent Network Based on Wavelength-Selective Optical Cross Connect

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光学学报 2003年第S1期23卷 711-712页

作者： Yikai Su Bell Laboratories, lucent technologies, 791 Holmdel-Keyport Rd, Holmdel, New Jersey, USA Bell Laboratories Lucent Technologies 791 Holmdel-Keyport Rd Holmdel New Jersey USA

This paper discusses a 40-Gbit/s transparent optical network focusing on the optical transport performance. We show 1200-km transmission with two WSOXC' sspaced by 400 km. In addition, network control issues are brief... 详细信息

关键词： GMPLS as in of be WDM Gbit/s Transparent Network Based on Wavelength-Selective Optical Cross Connect EDFA on

Volumetric Virtual Environments

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Journal of Computer Science & Technology 2000年第1期15卷 37-46页

作者： HE Taosong(Software Production Research department, Bell Laboratorieslucent technologies, Naperville, IL 60566, USA)E-mail: taosong@*** Software Production Research department Bell Laboratories Lucent Technologies Naperville USA

Driven by fast development of both virtual reality and volume visualization, we discuss some critical techniques towards building a volumetric VRsystem, specifically the modeling, rendering, and manipulations of a volumetric *** such as voxel-based object simplification, accelerated volume rendering,fast stereo volume rendering, and volumetric 'collision detection' are introduced andimproved, with the idea of demonstrating the possibilities and potential benefits ofincorporating volumetric models into VR systems.

关键词： volume visualization volume rendering virtual reality volumegraphics object simplification level of detail wavelets theory volumetric collisiondetection

State of the Art and Perspectives of Hydroforming of Tubes and Sheets

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Journal of Materials Science & Technology 2001年第3期17卷 321-324页

作者： F. Vollertsen department for Metal Forming technologies, University Paderborn, Paderborn, Germany E-mail: fv@luf.upb.de Dept. for Metal Forming Technol. Univ. Paderborn Paderborn Germany

Hollow parts of high accuracy and high strength can be produced by forming methods using liquid media. Hydroforming of tubes has reached a high standard for small parts (volume some 1000 cm3) and is further developed for larger parts (volume some 10.000 cm3). Processes for hydraulic sheet metal forming are sometimes used for small parts from single sheets These pro-cesses are currently under intensive investigation, which is also true for the processing of double layered sheets Single sheets can be formed using membranes which separate the workpiece and the liquid. This results in interesting possibilities for a part and process integration in one step The forming performance of aluminum alloys can be enhanced by using a heated liquid media when forming without membranes.

关键词： State of the Art and Perspectives of Hydroforming of Tubes and Sheets

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以更高效率和更高效益利用宝贵的带宽

世界电信 2005年第1期18卷 46-48页

作者： Contributed by lucent technologies 朗讯科技

随着范围广泛的全新高速数据服务的不断涌现,人们对更高体验的追求导致了对更高带宽的需求,特别是在移动通信领域更是如此.

关键词：带宽移动通信高效率数据服务高速高效益需求范围领域追求

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光系统的演变──无处不在的光

世界电信 2001年第1期14卷 17-20,25页

作者： Contributed by lucent technologies 朗讯科技

迅速发展的光网络系统提供了日益强大的传输能力，尤为重要的是，光放大器和波分复用（ＷＤＭ）技术的出现，不仅强化了光在网络中的地位，而且将其作用逐步扩大到网络边缘。朗讯科技正在着手实现包括软件控制的光波长增／减多路复用器... 详细信息

迅速发展的光网络系统提供了日益强大的传输能力，尤为重要的是，光放大器和波分复用（ＷＤＭ）技术的出现，不仅强化了光在网络中的地位，而且将其作用逐步扩大到网络边缘。朗讯科技正在着手实现包括软件控制的光波长增／减多路复用器在内的多点ＷＤＭ环路系统的商业化，并将于近期推出大型光交叉连接。随着光纤价格的不断下降以及企业与家庭用户对带宽需求的持续增长，光纤系统将逐步从核心网和城城网扩展到接入网。

关键词：光传输光网络光接入网光系统光通信