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International Conference on Networking and Services (ICNS)

作者： Sergey Gorinsky Harrick Vin Applied Research Laboratory Department of Computer Science and Engineering Washington University of Saint Louis Saint Louis MO USA Laboratory for Advanced Systems Research Department of Computer Sciences University of Texas Austin Austin TX USA

Congestion control algorithms are traditionally evaluated in contrast to ideal capacity allocations that specify instantaneous efficient fair rates for application sessions but ignore time. While the latter is tenable for local networks and networks where all application sessions last long, instantaneous ideal allocations are inadequate standards for congestion control evaluation in dynamic wide-area networks. In this paper, we propose an alternative ideal of an effair allocation that explicitly accounts for unavoidable propagation delay. We develop an algorithm for computing the effair allocation and present a metric of effairness that quantifies how close the actual network services are to the effair allocation on the receiver, session, and network levels.

关键词： Propagation delay Measurement units Control systems Laboratories computer networks Web and internet services computer science Application software Proposals IP networks

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Task Scheduling and Lightpath Establishment in Optical Grids

Task Scheduling and Lightpath Establishment in Optical Grids

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IEEE Annual Joint Conference: INFOCOM, IEEE computer and Communications Societies

作者： X. Liu W. Wei C. Qiao T. Wang W. Hu W. Guo M.-Y. Wu Department of Computer Scienceand Engineering Suny at Buffalo NY USA NEC Laboratories of America NJ USA State Key Laboratory of Advanced OpticalCommunication Systems and Networks Shanghai China

Data-intensive Grid applications require huge data transferring between multiple geographically separated computing nodes where computing tasks are executed. For a future WDM network to efficiently support this type of emerging applications, traditional approaches to establishing lightpaths between given source destination pairs are not sufficient because a computing task may be executed on any one of several computing nodes having the necessary resources. Therefore, lightpath establishment has to be considered jointly with task scheduling to achieve best performance. In this paper, we study the optimization problems of jointly scheduling both computing resources and network resources. We first present the formulation of two optimization problems with the objectives being the minimization of the completion time of a job and minimization of the resource usage/cost to satisfy a job with a deadline respectively. When the objective is to minimize the completion time, we devise an optimal algorithm for a special type of applications. Furthermore, we propose efficient heuristics to deal with general applications with either optimization objective and demonstrate their good performances via simulation.

关键词： computer networks Processor scheduling WDM networks Grid computing Distributed computing Optical fiber networks USA Councils Application software Optical computing Peer to peer computing

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Picosecond pulse amplification in semiconductor optical amplifiers: A multiple-scale analysis

Picosecond pulse amplification in semiconductor optical ampl...

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Conference on Lasers and Electro-Optics (CLEO)

作者： Malin Premaratne Govind P. Agrawal Advanced Computing and Simulation Laboratory (AcL) Department of Electrical and Computer Systems Engineering Monash University Clayton VIC Australia Institute of Optics University of Rochester Rochester NY USA

We propose a systematic way for analyzing gain-recovery dynamics in semiconductor optical amplifiers using a multiple-scale analysis and show that the resulting analytical solution for the amplified pulse agrees well ... 详细信息

ISBN: (纸本)9781557528599

关键词： Optical pulses Pulse amplifiers Semiconductor optical amplifiers Optical pulse shaping Stimulated emission Charge carrier density Optical computing Modeling Space vector pulse width modulation Equations

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A Novel Fast Programmable Optical Buffer with Variable Delays

A Novel Fast Programmable Optical Buffer with Variable Delay...

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Optical Fiber Communication (OFC) Conference

作者： Xinwan Li Limei Peng Jianping Chen Songbo Wang Guiling Wu Jialin Lu Young-Chon Kim The State Key Laboratory of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiaotong University Shanghai China Department of Computer Engineering Chonbuk National University of Korea Jeonju South Korea

An optical fiber buffering structure was proposed by embedding 3J feed-forward optical fiber delay lines into a re-circulating loop. By using SOAs as the ON-OFF switches, this structure is fast programmable and scalable.

ISBN: (纸本)9781557528599

关键词： Optical buffering Delay lines Optical fiber communication Optical fibers Optical packet switching Optical switches High speed optical techniques Stimulated emission Optical devices Feedforward systems

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A combined top-down and bottom-up approach for precise placement of metal nanoparticles on silicon (vol 4, pg 330, 2008)

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SMALL 2008年第4期4卷 393-393页

作者： Choi, W. K. Liew, T. H. Chew, H. G. Zheng, F. Thompson, C. V. Wang, Y. Hong, M. H. Wang, X. D. Li, L. Yun, J. Microelectronics Laboratory Department of Electrical and Computer Engineering National University of Singapore 117576 Singapore Singapore Fax: (+65) 677-911-03 Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA ECE-DSI Laser Microprocessing Laboratory Department of Electrical and Computer Engineering National University of Singapore 117576 Singapore Singapore Advanced Materials for Micro- and Nano-Systems Singapore-MIT Alliance 117576 Singapore Singapore

A combined top-down and bottom-up approach was used for precise placement of metal nanoparticles on silicon substrates. The study used laser interference lithography (LIL) technique, to open windows on a silicon wafer with a silicon oxide mask. Inverted pyramids were obtained at the window region, by etching the silicon wafer in KOH under the top-down approach. The bottom-up approach involved the evaporation of a gold (Au) layer on the whole silicon wafer and annealing at elevated temperature. The Au inside the inverted pyramids was coarsened and formed Au dots inside them. The results show that the diameter of the metal nanoparticles can be tuned more effectively, by changing the Au layer thickness, along with the annealing temperature.

关键词： gold nanolithography nanomanipulation nanoparticles silicon surfaces

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Applying data mining in medical data with focus on mortality related to accident in children

Applying data mining in medical data with focus on mortality...

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IEEE International Conference on Multi Topic

作者： Mohammad Hossein Saraee Zahra Ehghaghi Hoda Meamarzadeh Bahare Zibanezhad Advanced Database Systems Data Mining and Bioinformatics Research Laboratory Department of Electrical and Computer Engineering Isfahan University of Technology Isfahan Iran Islamic Azad University Najafabad Branch Isfahan Iran

Trauma is the main leading cause of death in children; we need a tool to prevent and predict the outcome in these patients. Data mining is the science of extracting the useful information from a large amount of data sets or databases that leads to statistical and logical analysis and looking for patterns that could help the decision makers. In This paper we offer an approach for using data mining in classifying mortality rate related to accidents in children under 15. These data were gathered from the patient files which were recorded in the medical record section of the Alzahra Hospital in Isfahan. The data mining methods in use are decision tree and Bayes' theorem. Applying DM techniques to the data brings about very interesting and valuable results. It is concluded that in this case, comparing the result of evaluating the models on test set, decision tree works better than Bayes' theorem. In this paper, we have used Clementine12.0 for creating the models.

关键词： Data mining Accidents Pediatrics Decision trees Databases Information analysis Pattern analysis Hospitals Delta modulation Testing

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Ultra broadband SOI binary blazed grating mirror

Ultra broadband SOI binary blazed grating mirror

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IEEE International Conference on Group IV Photonics

作者： Huaming Wu Yi Wang Junbo Feng Yao Chen Jin Hou Dingshan Gao Zhiping Zhou Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan Hubei China Laboratory on Advanced Optical Communication Systems and Networks Peking University Beijing China School of Electrical and Computer Engineering Georgia Institute of Technology Atlanta GA USA

A novel SOI grating mirror based on thin binary blazed grating layer is presented. The binary blazed grating mirror (BBGM) has the characteristics of ultra broadband reflection spectrum, high reflectivity and large an... 详细信息

ISBN: (纸本)9781424417698

关键词： Gratings Mirrors Reflectivity Optimized production technology Broadband communication Reflection System-on-a-chip

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Result representation of Rao-Blackwellized particle filtering for SLAM

Result representation of Rao-Blackwellized particle filterin...

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International Conference on Control, Automation and systems ( ICCAS)

作者： Nosan Kwak Beom-Hee Lee Kazuhito Yokoi Joint Japanese-French Robotics Laboratory Intelligent Systems Research Institute National Institute for Advanced Industrial Science and Technology Tsukuba Japan School of Electrical Engineering and Computer Science Seoul National University Seoul South Korea

Recently, particle filters have been applying to many robotic problems including the simultaneous localization and mapping (SLAM). Specifically, SLAM approaches employing Rao-Blackwellized particle filter (RBPF) have shown good results. However, no research is conducted to analyze representation of the results of particle filtering. After finishing the particle filtering, the results such as a map and a path are stored in the separate particles. In most cases, the result of the particle that has the highest importance weight is represented as the result. However, this approach does not give the best result all the time. Thus, We provide the analysis of final representation of particle filtering. In this paper, we compares several methods to derive the final representation of the result after finishing RBPF-SLAM. According to the result, combining data of each particle provides the better result with high probability than using just data of a particle such as the highest weighted particle representation.

关键词： Filtering Simultaneous localization and mapping Particle filters Intelligent robots Robotics and automation Service robots Electronic mail Finishing Diversity reception Automatic control

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Low loss sharp bend for silicon nanophotonic slow-light waveguide

Low loss sharp bend for silicon nanophotonic slow-light wave...

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IEEE International Conference on Group IV Photonics

作者： Huaxiang Yi Yi Wang Junbo Feng Yao Chen Zhiping Zhou Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan Hubei China State Key Laboratory on Advanced Optical Communication Systems and Networks Peking University Beijing China School of Electrical and Computer Engineering Georgia Institute of Technology Atlanta GA USA

A low loss sharp bend is proposed and analyzed in the slow-light waveguide which is consisted of a series of silicon nanopillars. More than 90% of transmission over 100 nm bandwidth is obtained.

ISBN: (纸本)9781424417698

A low loss sharp bend is proposed and analyzed in the slow-light waveguide which is consisted of a series of silicon nanopillars. More than 90% of transmission over 100 nm bandwidth is obtained.

关键词： Optical waveguides Silicon Optical buffering Optical resonators Dispersion Optical losses Optical coupling

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The complete bandgap in ring-shaped photonic crystal SOI slab

The complete bandgap in ring-shaped photonic crystal SOI sla...

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IEEE International Conference on Group IV Photonics

作者： Ran Hao Hamza Kurt David S. Citrin Zhiping Zhou Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan Hubei China Electrical and Electronics Engineering Department TOBB University of Economics and Technology Ankara Turkey School of Electrical and Computer Engineering Georgia Institute of Technology Atlanta GA USA Georgia Tech Lorraine Unità Mixte Internationale 2958 Georgia Tech-CNRS Metz France Laboratory on Advanced Optical Communication Systems & Networks Peking University Beijing China

Ring shaped photonic crystals on SOI slab are studied aiming to search for large complete band gap. A gap to mid-gap ratio of 7% is successfully obtained.

ISBN: (纸本)9781424417698

Ring shaped photonic crystals on SOI slab are studied aiming to search for large complete band gap. A gap to mid-gap ratio of 7% is successfully obtained.

关键词： Photonic band gap Slabs Photonic crystals Fabrication Dielectrics Photonics Materials

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