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作者： Masip-Bruin, X. Yannuzzi, M. Domingo-Pascual, J. Fonte, A. Curado, M. Monteiro, E. Kuipers, F. Van Mieghem, P. Avallone, S. Ventre, G. Aranda-Gutiérrez, P. Hollick, M. Steinmetz, R. Iannone, L. Salamatian, K. Agda. Victor Balaguer s/n Barcelona Catalunya Spain Laboratory of Communications and Telematics DEI/CISUC University of Coimbra Polo II 3030-290 Coimbra Portugal Faculty of Electrical Engineering Mathematics and Computer Science Delft University of Technology P.O. Box 5031 2600 GA Delft Netherlands Dipartimento di Informatica e Sistemistica Università degli Studi di Napoli 'Federico II' Via Claudio 21 80125 Napoli Italy Telefónica I+D Emilio Vargas 6 28043 Madrid Spain Department of Electrical Engineering and Information Technology Technische Universität Darmstadt Merckstr. 25 64283 Darmstadt Germany LIP6/CNRS Université Pierre et Marie Curie 8 rue du Capitaine Scott 75015-Paris France

Quality of Service Routing is at present an active and remarkable research area, since most emerging network services require specialized Quality of Service (QoS) functionalities that cannot be provided by the current QoS-unaware routing protocols. The provisioning of QoS based network services is in general terms an extremely complex problem, and a significant part of this complexity lies in the routing layer. Indeed, the problem of QoS Routing with multiple additive constraints is known to be NP-hard. Thus, a successful and wide deployment of the most novel network services demands that we thoroughly understand the essence of QoS Routing dynamics, and also that the proposed solutions to this complex problem should be indeed feasible and affordable. This article surveys the most important open issues in terms of QoS Routing, and also briefly presents some of the most compelling proposals and ongoing research efforts done both inside and outside the E-Next Community to address some of those issues. © 2005 Elsevier B.V. All rights reserved.

关键词： Routers

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Dielectric Barrier Discharge Plasma in Coagulation and Sterilization.

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Blood 2006年第11期108卷 4043-4043页

作者： Manjula Balasubramanian Anita Sebastian Marie Peddinghaus Gregory Fridman Alexander Fridman Alexander Gutsol Gregory Friedman Brooks Ari Pathology and Laboratory Medicine Department Drexel College of Medicine Philadelphia PA USA Engineering Drexel School of Biomedical Engineering Science and Health Systems Philadelphia PA USA Mechanical Engineering and Mechanics Drexel College of Engineering Philadelphia PA USA Electrical and Computer Engineering Drexel College of Engineering Philadelphia PA USA Surgery Drexel College of Medicine Philadelphia PA USA

Rapid loss of blood, in the operating room or trauma, necessitates a need for hastening coagulation Attempts to hasten coagulation include electrocautery based on thermal plasma discharges. Although there have been other effective attempts to prevent further loss of blood via coagulation, tissue damage and dessication can occur as a result of the high temperatures 2 . Our group has developed a method to initiate rapid coagulation with dielectric plasma discharge (cold). Initial experiments were performed using fresh blood from volunteers to compare time for coagulation of whole blood exposed to plasma, one minute versus 10 minutes. We tried same experiments on cut cadaver organs such as spleen and placenta which showed evidence of rapid coagulation compared to control without evidence of tissue damage. Our research team has developed a novel method using non-thermal dielectric barrier discharge plasma (DBD plasma) to coagulate blood and sterilize tissues without causing thermal damage. This treatment would be safe to patients because no exposed electrodes are involved and high frequency current (under 10 KHz) is kept below mili-ampere. Our experiments have shown that such plasma treatment hastens blood coagulation and causes simultaneous wound sterilization via a large concentration of chemically active species in plasma that are ions, radicals (O, OH, N) and electronically-excited atoms and molecules. A kinetic model of blood coagulation under influence of DBD plasma was constructed. The model assumes contact flux of positive ions from DBD plasma into the surface of the blood being treated. Once at the surface, these ions recombine, leading to formation of aqueous Hydrogen ions which catalyze the release of Calcium ions into the blood. The addition of Calcium ions to blood speeds up the coagulation process proportionally to the amount of ions added. The model demonstrates thrombin formation in the presence of DBD plasma peaking and occurring within significantly le

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Verification of an SDL specification - A case study

Elektrotehniski Vestnik/Electrotechnical Review

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Elektrotehniski Vestnik/Electrotechnical Review 2005年第1期72卷 14-21页

作者： Vlaovič, Boštjan Vreže, Aleksander Brezočnik, Zmago Kapus, Tatjana University of Maribor Faculty of Electrical Engineering and Computer Science Smetanova ulica 17 2000 Maribor Slovenia Laboratory for Microcomputer Systems

This paper presents practical experience gained by an attempt to mechanically extract a model of the Inres service with the go-back-n extension and verify it with the use of simulation and formal verification based on the model checking technique. The service specification is written in the Specification and Description Language (SDL). The model is obtained mechanically with the application of the sd12if and if 2pm1 tools. Transformation to discrete-time Promela is followed by simulation and an example of formal verification of a property described in Linear Temporal Logic (LTL) with the Spin model checker. Description of each step of the process is followed with the noticed shortcomings of the procedure, limitations of the tools and discovered faults in the specification of the service. We conclude with a discussion of further research activities and some results from the domain of mechanical extraction of models from SDL system specifications.

关键词： computer systems

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Avoiding data conversions in embedded media processors 05

Avoiding data conversions in embedded media processors

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20th Annual ACM Symposium on Applied Computing

作者： Juurlink, Ben Shahbahrami, Asadollah Vassiliadis, Stamatis Computer Engineering Laboratory Faculty of Electrical Engineering Mathematics and Computer Science Delft University of Technology Netherlands

ISBN: (纸本)9781581139648

Complex application-specific media instructions and kernels are emulated with simple to implement extended subword instructions. We show that assuming extended register file entries to accommodate intermediate results and by implementing a few simple instructions, packing/unpacking, saturation, and frequently used complex instructions can be practically eliminated. It is shown that in most emulations there is a potential performance improvement, making the proposed scheme suitable for embedded processors with a limited hardware budget. Copyright 2005 ACM.

关键词： Embedded systems

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Matrix register file and extended subwords: Two techniques for embedded media processors

Matrix register file and extended subwords: Two techniques f...

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2005 Computing Frontiers Conference

作者： Shahbahrami, Asadollah Juurlink, Ben Vassiliadis, Stamatis Computer Engineering Laboratory Faculty of Electrical Engineering Mathematics and Computer Science Delft University of Technology Netherlands

ISBN: (纸本)1595930183

In this paper we employ two techniques suitable for embedded media processors. The first technique, extended subwords, uses four extra bits for every byte in a media register. This allows many SIMD operations to be performed without overflow and avoids packing/unpacking conversion overhead because of mismatch between storage and computational formats. The second technique, the Matrix Register File (MRF), allows flexible row-wise as well as column-wise access to the register file. It is useful for many block-based multimedia kernels such as (I) DOT, 2 × 2 Haar Transform, and pixel padding. In addition, we propose a few new media instructions. We employ Modified MMX (MMMX), MMX with extended subwords, to evaluate these techniques. Our results show that MMMX combined with an MRF reduces the dynamic number of instructions by up to 80% compared to other multimedia extensions such as MMX. Copyright 2005 ACM.

关键词： Program processors

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Effects of nanoimprinted patterns in tissue-culture polystyrene on cell behavior

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Journal of Vacuum science and Technology B: Microelectronics and Nanometer Structures 2005年第6期23卷 2984-2989页

作者： Hu, W. Yim, E.K.F. Reano, R.M. Leong, K.W. Pang, S.W. Solid State Electronics Laboratory Department of Electrical Engineering and Computer Science University of Michigan Ann Arbor MI 48109 Department of Biomedical Engineering Johns Hopkins School of Medicine Baltimore MD 21205 Department of Electrical Engineering University of Texas at Dallas Richardson TX 75083 Electrical Engineering and Computer Science Department Ohio State University Columbus OH 43210

Tissue engineering seeks to develop functional tissues in a biomimetic environment in vitro. As the extracellular environment in vivo is composed of numerous nanostructures, fabrication of nanostructured substrates will be valuable for tissue engineering applications. In this article, we report a simple nanoimprint lithography (NIL) process to pattern nanostructures directly on tissue-culture polystyrene plates. By repeating this NIL process, three-dimensional scaffolds consisting of multiple-layer nanostructures were also fabricated. Bovine pulmonary artery smooth muscle cells were cultured on imprinted gratings ranging from 350 nm to 10 μm. The smooth muscle cells attached and proliferated well on these imprinted substrates without additional surface treatment. Cell elongation and alignment were observed on the micro- and nanopatterns, with the effect significantly more pronounced on the nanostructures. © 2005 American Vacuum Society.

关键词： Tissue culture

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Reconfigurable universal SAD-multiplier array

Reconfigurable universal SAD-multiplier array

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2005 Computing Frontiers Conference

作者： Calderon, Humberto Vassiliadis, Stamatis Computer Engineering Laboratory Faculty of Electrical Engineering Mathematics and Computer Science Delft University of Technology P.O. Box 5031 2600 GA Delft Netherlands

ISBN: (纸本)1595930183

In this paper, we investigate the collapsing of some multioperand addition related operations into a single array. More specifically we consider multiplication and Sum of Absolute Differences (SAD) and propose an array capable of performing the aforementioned operations for unsigned, signed magnitude, and two's complement notations. The array, called a universal array, is divided into common and controlled logic blocks intended to be reconfigured dynamically. The proposed unit was constructed around three main operational fields, which are feed with the necessary data products or SAD addition terms in order to compute the desired operation. It is estimated that a 66.6 % of the (3:2)counter array is shared by the operations providing an opportunity to reduce reconfiguration times. The synthesis result for a FPGA device, of the new structure, was compared against other multiplier organizations. The obtained results indicate that the proposed unit is capable of processing in 23.9 ns a 16 bit multiplication, and that an 8 input SAD can be computed in 29.8 ns using current FPGA technology. Even though the proposed structure incorporates more operations, the extra delay required over conventional structures is very small (in the order of 1% compared to Baugh&Wooley multiplier). Copyright 2005 ACM.

关键词： Arrays

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Combining features from wavelet decomposition for vehicle detection

Combining features from wavelet decomposition for vehicle de...

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IWSSIP 2005 - 12th International Workshop on Systems, Signals and Image Processing(SSIP-SPI, 2005)

作者： Romih, Tomaž Čučej, Žarko Planinšič, Peter Liatsis, Panos Faculty of Electrical Engineering and Computer Science University of Maribor Slovenia Information and Biomedical Engineering Centre School of Engineering and Mathematical Sciences City University Northampton Square London EC1V United Kingdom Faculty of Electrical Engineering and Computer Science IEEE Information and Biomedical Engineering Centre EPSRC TEE Eur Ing. Department of Automatic and Robotic University of Maribor Slovenia University of Maribor SPIE

ISBN: (纸本)0907776205

In this paper, we present the use of the wavelet transform for image object detection. We decompose image into first level subbands and remove the approximation subband. Inverse wavelet transform gives us an image with enhanced details, which we use for segmentation of image areas to objects. We take into consideration the size scaling of object near and away from camera. A comparison of the performance of the suggested algorithm is performed. Copyright © 2005 Inderscience Enterprises Ltd.

关键词： Image processing

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Appointments for 2005-2006 term

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IEEE Transactions on Very Large Scale Integration (VLSI) Systems 2005年第7期13卷 773-782页

作者： Ranganathan, Nagarajan Agrawal, Vishwani D. Chakradhar, Srimat T. Chakrabarty, Krishnendu Courtois, Bernard DeMara, Ronald Hu, Xiaobo Sharon Ismail, Yehea I. Jha, Niraj K. John, Lizy Kurian Ker, Ming-Dou Koren, Israel Liu, Bin-Da Marculescu, Diana Marculescu, Radu Narayanan, Vijaykrishnan Nassif, Sani R. Nowick, Steven M. Sapatnekar, Sachin S. Sherlekar, Sunil Sylvester, Dennis Vemuri, Ranga Pham, Michael Department of Computer Science and Engineering University of South Florida Tampa FL 33620 United States Department of Computer Science and Engineering Nanomaterials and Nanomanufacturing Research Center University of South Florida Tampa United States IEEE United States Systems United States Department of Electrical and Computer Engineering Rutgers University New Brunswick NJ United States IETE India ACM NEC Laboratories America Inc. Princeton NJ United States Duke University Durham NC United States ACM SIGDA Sigma Xi United States Laboratory of Techniques of Informatics and Microelectronics for Computer Architectecture ASME IMAPS IEEE Computer Society University of Central Florida Orlando United States Computer Engineering Program SEECS Department of Computer Science and Engineering University of Notre Dame Notre Dame IN United States Northwestern University Evanston IL United States Department of Electrical Engineering Princeton University Princeton NJ United States Association for Computing Machinery Austin United States UT Austin Engineering Foundation United States Department of Electronics Engineering National Chiao-Tung University Taiwan Department of Electrical and Computer Engineering University of Massachusetts Amherst United States Department of Electrical Engineering Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh PA United States Electrical and Computer Engineering Faculty Carnegie Mellon University Pittsburgh PA United States Computer Science and Engineering Department Pennsylvania State University University Park United States IBM Austin Research Laboratory Austin TX United States Columbia University New York NY United States Department of Electrical and Computer Engineering University of Minnesota Minneapolis United States Tata Consultancy Services Centre of Excellence for Embedded Systems India Department of Electrical Engineering IIT Bombay India Department of Electrical Engineering Uni

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Electromagnetic imaging: What relativity did and what it can do for us?

Electromagnetic imaging: What relativity did and what it can...

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Joint 9th International Conference on Electromagnetics in Advanced Applications, ICEAA 2005 and 11th European Electromagnetic Structures Conference, EESC 2005

作者： Budko, Neil V. Laboratory of Electromagnetic Research Faculty of Electrical Engineering Mathematics and Computer Science Delft University of Technology Mekelweg 4 2628 CD Delft Netherlands

ISBN: (纸本)8882020932

Relativistic analysis of the mutual motion of the electromagnetic source and the observer suggests a possibility of an alternative approach to the problem of imaging. In the existing imaging systems, such as telescopes, radars, and interferometers, the angular resolution is determined by the spatial extent of the receiving aperture - the bigger the better. In the proposed relativistic imaging system, based on the induced Doppler effect, the resolution criterion is the velocity of the observer - the faster the better. In particular, we show how this can be achieved by pre-accelerating the charge carriers of the receiving antenna to a relativistic velocity prior to the interaction with the field of the source.

关键词： Imaging systems

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