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IEEE International Symposium on Circuits and systems (ISCAS)

作者： Donghyun Kim Kangmin Lee Se-joong Lee Hoi-Jun Yoo Semiconductor System Laboratory Department of Electronic Engineering and Computer Science Korea Advanced Institute of Science and Technology Daejeon South Korea

ISBN: (纸本)0780388348

We propose a new crossbar switch structure with adaptive bandwidth control. In a complex SoC design, the proposed crossbar switch efficiently incorporates various IPs with different bandwidth requirements. Simulation under various traffic scenarios shows that the throughput of the proposed crossbar switch is as high as that of a conventional switch operating at twice the speed. The proposed crossbar switch shows maximum 27% improvement in throughput and maximum 41% improvement in latency compared to the conventional one. The proposed crossbar switch is implemented using Verilog HDL, synthesized with an 0.18 /spl mu/m process library, and verified on FPGAs. The area and power overhead of the proposed crossbar switch is 21% and 15%, respectively, when compared to the conventional crossbar switch.

关键词： Switches Programmable control Adaptive control Bandwidth Throughput Hardware design languages Communication system traffic control Traffic control Delay Libraries

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A Strategy of Load Balancing in Object Storage system

A Strategy of Load Balancing in Object Storage System

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International Conference on computer and Information technology (CIT)

作者： Lingfang Zeng Dan Feng Fang Wang Ke Zhou Key Laboratory of Data Storage System Ministry of Education School of Computer Huazhong University of Science and Technology Wuhan Hubei China

ISBN: (纸本)076952432X

Most of traditional load balancing strategies are based on servers or applications architecture. Storage subsystem, as the back tier, provides file or block interface to server or application tier, is often ignored when the bottleneck of service is studied. Our load balancing strategy is based on storage object, which provides object interface for the up tier. We concentrate on storage objects with massive dynamic processing. The characteristics of storage object in object storage system (OSS) enable us to apply our load balancing strategy at the back end of servers or applications in order to deal with bottlenecks at the storage tier in data-intensive applications

关键词： Load management Application software File servers Network servers Back Biology computing Distributed computing Biological system modeling Predictive models Data storage systems

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A new approach for early detection of Internet worms based on connection degree

A new approach for early detection of Internet worms based o...

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International Conference on Machine Learning and Cybernetics (ICMLC)

作者： Chen Bo Bin-Xing Fang Xiao-Chun Yun National Computer Information Content Security Key Laboratory Harbin Institute of Technology Harbin China National Computer Network and Information System Security Administration Center Beijing China

In recent years, Internet-scale worm incidents occurred many times. People wonder at the speediness of the worm spread and the severe damage to the Internet. So people began to find methods to detect worms as quickly as possible. The paper first describes a worm behavior and propagation model. And then based on it, a new approach for early detection of Internet worms is proposed. This approach determines whether a worm incident has occurred by the change of the computers' connection degree. The approach is proved to be effective on early detection of unknown worms by experiments.

关键词： Internet computer worms computer networks computer security Information security National security Economics Web server Intrusion detection computer hacking

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The modeling and characterization of nano-scale MOSFET resistance

The modeling and characterization of nano-scale MOSFET resis...

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2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005

作者： Lee, Jun-Ha Lee, Hoong-Joo Lee, Woo-Hee Kang, Eu-Seok Lee, Ju-Yul Byun, Ki-Ryang Kang, Jeong-Won Hwang, Ho-Jung Kwon, Oh-Keun Information Display Research Center Department of Computer System Engineering Sangmyung Univerisity Chonan Korea Republic of School of Electrical and Electronic Engineering Nano Electronic Future Technology Laboratory Chung-Ang University Seoul Korea Republic of Department of E-Commerce Semyung University Jecheon Korea Republic of

ISBN: (纸本)0976798522

The current drive in an MOSFET is limited by the intrinsic channel resistance. All the other parasitic elements in a device structure play a significant role and degrade the device performance. These other resistances need to be less than 10%-20% of the channel resistance. To achieve the requirements, we should investigate the methodology of separation and quantification of those resistances. In this paper, we developed the extraction method of resistances using calibrated TCAD simulation. The resistance of the extension region is also partially determined by the formation of a surface accumulation region that forms under the gate in the tail region of the extension profile. This resistance is strongly affected by the abruptness of the extension profile because the steeper the profile is, the shorter this accumulation region will be.

关键词： Nanostructured materials

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Network Bandwidth Allocation Based on Generalized Particle Model and Price and Demands Dynamic Modulating

Network Bandwidth Allocation Based on Generalized Particle M...

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IEEE International Symposium on Intelligent Control (ISIC)

作者： Xiang Feng Dianxun Shuai Department of Computer Science and Engineering East China University of Science and Technology Shanghai China State Key Laboratory of Intelligence Technology System of Tsinghua University Beijing China

ISBN: (纸本)0780389379

This paper presents a new generalized particle model approach of price and demands dynamic modulating for network bandwidth allocation. The approach transforms the complicated network bandwidth allocation problem into the kinematics and dynamics of numerous link particles in force-field. The generalized particle model approach of dynamically modulating price and demands is featured by the powerful processing ability under complex environment, the market mechanism between the demands and service, and better adapting ability to the real time variation of network environment. Finally, we demonstrate the corresponding parallel algorithm and its simulations on bandwidth allocation

关键词： Channel allocation Mathematical model Laboratories Intelligent systems computer science Bandwidth Kinematics Parallel algorithms Computational modeling computer networks

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Image registration method for consumer devices

Image registration method for consumer devices

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IEEE International Conference on Consumer Electronics (ICCE)

作者： I. Guarneri M. Guarnera G. Lupica S. Casale Advanced System Technology Imaging Group Catania Laboratory STMicroelectronics Italy Department of Computer Science and Telecommunication Electronics Engineering University of Catania Italy

A projective image registration algorithm, oriented to consumer devices, is proposed. It exploits a "multi-resolution feature based method" for estimating the projective parameters through a 2D Daubechies discrete wavelet transform (DWT). The algorithm has been fully tested with real image sequences acquired by CMOS sensors and compared to other registration techniques. The obtained results highlight the accuracy of the registration parameters.

关键词： Image registration Discrete wavelet transforms CMOS image sensors Testing Layout Wavelet coefficients Image sequences Optical distortion Noise reduction Filtering

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Real-time simulation to study the impact of renewable energy in power systems

Real-time simulation to study the impact of renewable energy...

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International Conference on Future Power systems

作者： I.J. van Vliet A.M. van Voorden P.H. Schavemaker G.C. Paap L. van der Sluis Faculty of Electrical Engineering Mathematics & Computer ScienceElectrical Power System Laboratory (EPS) Delft University슠of슠Technology Delft Netherlands

A real-time simulation tool, in our case a real-time digital simulator (RTDS), gives the opportunity to study the impact of renewable energy in power systems on a real-time base, driven by actual solar and wind data. In the first part of this paper, the real-time digital simulator (RTDS) is briefly introduced. The application of this analyzing tool is first demonstrated on a detailed model of a wind energy conversion system (WECS) whereas secondly the application on an autonomous power system is shown. Both applications demonstrate the capabilities of this simulator and the added value for power system analysis

关键词： Power system simulation Real time systems Renewable energy resources Power system modeling Power system analysis computing Induction generators Computational modeling Wind energy Distributed power generation Power generation

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A proxy cache scheme of network storage

A proxy cache scheme of network storage

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International Conference on Embedded Software and systems

作者： Yihui Luo Changsheng Xie Xinwei Zheng Chengfeng Zhang Zhen Zhao National Storage System Laboratory School of Computer Science Huazhong University of Science and Technology Wuhan Hubei China School of mathematics and Computer Science Hubei University Wuhan Hubei China

Network storage has many advantages, it does not only provide users with large storage space, but also provides users with sorts of I/O services to satisfy users' requirements, however, it also brings new problems, such as difficult storage management and low I/O performance. The proxy cache scheme is proposed to solve those problems. The proxy is configured at user network to integrate storage space and provide users with suitable I/O interface, which can simplify clients' storage management. The cache is configured at the proxy to reduce network traffic and improve clients' I/O performance. However, the normal replace algorithms, such as LFU, LRU are not suitable in network storage. According to the I/O performance definition, a cache replace algorithm named least access time is proposed to optimize cache performance. Theory analysis and experiments proved that the scheme was feasible.

关键词： Cache storage Telecommunication traffic Protocols computer science Storage area networks Network servers Scalability Laboratories Mathematics computer applications

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Nearest Neighbor Algorithm for prediction of protein domain structural class

Nearest Neighbor Algorithm for prediction of protein domain ...

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International Conference on High Performance Computing in the Asia-Pacific Region

作者： Zhen-Hui Zhang Zheng-Hua Wang Yong-Xian Wang Department of Mathematics and System Science Institute of Science National University of Defense Technology Changsha China Laboratory of PDL Institute of Computer National University of Defense Technology Changsha China

The Nearest Neighbor Algorithm (NNA) was proposed to predict the structural class of a protein domain according to its amino acid composition. Results obtained through Resubstitution test, Jackknife test and independent dataset test are quite high. Accordingly, the present method, if effectively complemented with the existing prediction methods in this area, may become a powerful tool for predicting the structural class of protein domains

关键词： Nearest neighbor searches Prediction algorithms Proteins Amino acids Testing Space technology Mathematics Laboratories Page description languages Prediction methods

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Comparisons and discussion of three typical robot path planning approaches

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Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and technology) 2005年第SUPPL.期36卷 315-319页

作者： Wang, Qi-Zhi Wang, Hong-Zhi School of Computer and Information Technology Beijing Jiaotong University Beijing 100044 China Laboratory of Complex System and Intelligence Science Institute of Automation Chinese Academy of Sciences Beijing 10080 China Laboratory of Intelligent Technology and Systems Tsinghua University Beijing 100084 China Shenyang Coking and Coal Gas Limited Company Shenyang 110026 China

Three typical path planning methods, i.e. artificial potential field, probabilistic path planning and biologically inspired neural network, were introduced. The analysis and comparisons were made in relating to genera... 详细信息

关键词： Artificial potential fields Biologically inspired neural network Obstacle avoidance Probabilistic path planning Robot path planning

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