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IEEE International Workshop on Cellular Nanoscale Networks and their Applications, (CNNA)

作者： K. Tomordi P. Foldesy P. Szolgay Analogic and Neural Computing Systems Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences (ATOMKI) Budapest Hungary Image Processing and Neurocomputing Department Faculty of Engineering University of Veszprém Veszprem Hungary

Printed circuit board layout inspection methods are mostly based on local geometric information, therefore they are well suited to the cellular neural networks (CNN) paradigm. The wire break, the wire and isolation width violation and an "H" type short circuits detector analogic algorithms were tested on a 20*22 CNN Universal Machine (CNNUM) chip working in the CNN Chip Prototyping system (CCPS) and on the CNN Engine Board (CNNEB), and the results were compared to the commercially available inspection systems.

关键词： Cellular neural networks Inspection Wire Circuit testing Geometrical optics Optical computing Printed circuits Detectors system testing Turing machines

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Distributed data processing in a telemetric system for monitoring civil engineering constructions

Distributed data processing in a telemetric system for monit...

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IEEE Instrumentation and Measurement Technology Conference

作者： A. Iraqi R.Z. Morawski A. Barwicz W.J. Bock Department of Electrical Engineering University of Québec Trois-Rivières Trois-Rivieres QUE Canada Faculty of Electronics and Information Technology Institute of Radioelectronics Warsaw University of Technology Warsaw Poland Computer Science Department/ Optoelectronics Laboratory Université du Quàbec à Hull Hull QUE Canada

The selected aspects of design methodology of a telemetric system for monitoring civil engineering constructions-using fiber-optic strain sensors-are considered. A particular attention is paid to the design decisions concerning the choice of a method for sensor calibration and measurand reconstruction, resulting requirements for computing power and their consequence on the distribution of data processing in the considered telemetric system. The results of this study may be applied for designing a specific telemetric system with fiber-optic sensors of strain.

关键词： Data processing Telemetry Monitoring Optical fiber sensors Capacitive sensors Sensor systems Design methodology Civil engineering Calibration Power measurement

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Primary structures of sperm-specific basic nuclear proteins and gene expression in Japanese newt, Cynops pyrrhogaster

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Molecular Reproduction and Development 1998年第3期46卷

作者： Kumiko Yoshinobu Toshihiro Kondo Masayuki Takai Chiaki Katagiri Hiroyuki Tou Shin-Ichi Abe Kazufumi Takamune Gene Technology Center Kumamoto University Kumamoto Japan Department of Biological Science Faculty of Science Kumamoto University Kumamoto Japan Central Laboratory for Medical Study and Research Equipment Saga Medical School Saga Japan Biological Laboratory Saga Medical School Saga Japan Division of Biological Science Graduate School of Science Hokkaido University Sapporo Japan Department of Biochemical Engineering and Science Faculty of Computer Science and System Engineering Kyusyu Institute of Technology Iizuka Japan

Electrophoretic analyses of acid extracts from mature sperm of newt, Cynops pyrrhogaster, on acid/urea/Triton X-100 polyacrylamide gel showed the exclusive occurrence of sperm-specific nuclear basic proteins (SBPs), which moved faster than somatic histones on the gel. These SBPs were eluted separately by reversed phase-high-performance liquid chromatography as two large peaks and a few small peaks. Of these, only the small peaks disappeared with treatment of the acid extracts with alkaline phosphatase before they were injected into the column, so that there were only two distinct components: NP1 and NP2. Determination of amino acid sequences by the Edman method as well as by sequencing of cDNA for both components indicated that each protein consisted of 43 (NP1) or 48 (NP2) amino acid residues, rich in arginine residues (53.5% in NP1; 47.9% in NP2), forming the clusters. They had molecular masses of 5,386 Da (NP1) and 5,748 Da (NP2), respectively. Northern blot analysis using cDNAs as probes indicated that mRNAs for both NP1 and NP2 occurred not in primary spermatocytes but in round spermatids. In situ hybridization analyses using antisense RNA for NP1 as a probe clearly showed the first appearance of NP1 mRNA at the late stage of round spermatid. Mol. Reprod. Dev. 46:243–251, 1997. © 1997 Wiley-Liss, Inc.

关键词： protamine spermatogenesis testis amphibian

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Grouping of planar structures for object reconstruction

Grouping of planar structures for object reconstruction

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International Conference on digital Signal Processing (DSP)

作者： S. Denasi G. Quaglia System Engineering Department-Computer Vision Laboratory Torino Italy

This paper presents a strategy to formulate 3D structure hypotheses without a-priori knowledge about the objects represented in the scene. The shape of 2D structures that have a high probability of belonging to the visible faces of objects is used to formulate hypotheses about the face orientation and 3D geometrical grouping of these structures is used to reconstruct the objects.

关键词： Face detection Image reconstruction Layout Image segmentation Shape Object detection Convergence Object recognition Length measurement Image converters

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digital Adaptive Motion Control for a Servo Mechanism

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IFAC Proceedings Volumes 1997年第11期30卷 323-328页

作者： T. Suehiro F. Ohkawa T. Hokamura S. Sagara Electronics Division Mechanics & Electronics Research Institute Fukuoka Industrial Technology Center 3-6-1 Norimatsu. Yahatanishi-ku Kitakyushu-shi 807 Japan Department of Control Engineering and Science Faculty of Computer & System Engineering Kyushu Institute of Technology lizuka 820 Japan Department of Control Engineering Faculty of Engineering Kyushu Institute of Technology Tobata Kitakyushu 804 Japan

This paper is concerned with an application of a digital adaptive control system to a servo mechanism. Mechanical systems in general include nonlinearities and additional uncertainties and which result from inertia and friction. So it is difficult to ensure robust performance and high accuracy for motion control. The digital adaptive control system presented here is considered to overcome the above stated problem. Experimental results from a feed drive system demonstrate the effectiveness of the proposed control scheme.

关键词： Adaptive Control Servomechanism Nonlinearity Uncertainty Friction

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A high performance FIR filter dedicated to digital video transmission

A high performance FIR filter dedicated to digital video tra...

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Asia and South Pacific Design Automation Conference

作者： S. Morikawa K. Okada S. Takeuchi I. Shirakawa Department Information Systems Engineering Faculty of Engineering Osaka University Suita Osaka Japan System LSI Laboratory Mitsubishi Electric Corporation Limited Itami Hyogo Japan

A digital filter is one of the fundamental elements in the digital video transmission, and a multiplier acts as the key factor that determines the operation speed and silicon area of the filter. Even though the coefficients to the filter are desired to be programmable, it is possible to change coefficients in the vertical fly-back interval of television receivers. This allows the preloadability of coefficients to the filter such that each coefficient can be treated as a constant during the filtering operation. Motivated by such functionalities, a novel multiplier together with an FIR filter architecture is described, which has been designed by means of a 0.5 /spl mu/m double metal CMOS technology.

关键词： Finite impulse response filter Silicon Filtering Electronic mail digital filters CMOS technology Satellite broadcasting Information systems systems engineering and theory Large scale integration

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A functional macro expansion system for optimizing code generation: gaining context-sensitivity without losing confluence (poster) 97

A functional macro expansion system for optimizing code gene...

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Proceedings of the second ACM SIGPLAN international conference on Functional programming

作者： Eero Lassila Digital Systems Laboratory Department of Computer Science and Engineering Helsinki University of Technology P.O. Box 1100 FIN-02015 HUT Finland

No abstract available.

ISBN: (纸本)9780897919180

No abstract available.

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Using a robot arm to facilitate the learning in young and mentally development-delayed children

Using a robot arm to facilitate the learning in young and me...

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International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： J. Gu F. Dong M. Meng A. Cook Department of Electrical and Computer Engineering ART (Advanced Robotics and Teleoperation) Laboratory Canada Faculty of Rehabilitation Medicine University of Alberta Edmonton AB Canada

The study is based on two assumptions: 1) the child is an active, goal-oriented participant in his or her own development; and 2) physical manipulation of objects is a major contributing factor in the development of cognitive and language skills in a very young child. The CRS robot arm system is used in our study. All the functions are under the control of a computer based software control algorithm. The training program uses either the teach pedant or a series of text commands to train the arm. With the teach pedant, the operator can move the arm in desired directions by pressing the button on the teach pedant. In the text training mode, the arm moves according to the command set predefined. Another important aspect of the project is how to set up the interface and communication environment between the young children and the robot arm. The final program lets the child to accomplish a series of processing complex tasks through simple operation of certain buttons. The programmed activities have a development sequence, which eventually brings the robot arm under the control of the child; at the same time it facilitates the learning process of the child.

关键词： Robots Medical robotics Rehabilitation robotics Pediatrics Cognitive robotics Pressing Switches computerized monitoring Wrist Grippers

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A speaker-independent Thai polysyllabic word recognition using hidden Markov model

A speaker-independent Thai polysyllabic word recognition usi...

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IEEE Pacific Rim Conference on Communications, computers and Signal Processing

作者： V. Akhuputra S. Jitapunkul W. Pornsukchandra S. Luksaneeyanawin Dept. of Electr. Eng. Chulalongkorn Univ. Bankok Thailand Digital Signal Processing Research Laboratory Department of Electrical Engineering Faculty of Engineering Chulalongkom University Bangkok Thailand Linguistic Research Unit Department of Linguistics Faculty of Arts Chulalongkom University Bangkok Thailand

This correspondence presents a speech recognition system of speaker-independent Thai polysyllabic words. This development is based on the discrete hidden Markov model in conjunction with vector quantization algorithm, endpoint detection algorithm for syllable endpoint detection and separation, and time normalization algorithm. The 70-Thai word vocabulary is subdivided into four sets comprising single, double, and triple syllabled words, 20 words in each set, and the last set consists of 10-Thai numeric words, zero to nine. The separated speech training set and testing set are composed of both male and female speakers within the range of 18 to 25 years old. For the tonal characteristics of the Thai language, the algorithms and the model parameters are modified in order to be applicable to the Thai language. The experiments on the effects of model parameter variations on recognition rate are conducted. The model parameters are number of codebooks, number of model states, and number of training speakers. The results show that the increase in the number of codebook and the number of model states have the major effect on the recognition rates. Also, the number of training speakers has less effect than the others. The average recognition rate of this speaker-independent recognition system is 89.906 percent for 40 speakers testing set using 256 vector codebook of 10-order linear prediction coefficients and 15-state model parameters. The recognition rate of the four sets of words are 86.750 percent for single-syllabled words, 92.375 percent for double-syllabled words, 96.250 percent for triple-syllabled words, and 84.250 percent for the numeric words.

关键词： Hidden Markov models Speech recognition Vector quantization Signal processing algorithms Natural languages Signal processing Smoothing methods Signal analysis Algorithm design and analysis Speech analysis

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Approximate Signal Processing

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Journal of VLSI Signal Processing systems for Signal, Image, and Video Technology 1997年第1-2期15.0卷 177-200页

作者： Nawab, S. Hamid Oppenheim, Alan V. Chandrakasan, Anantha P. Winograd, Joseph M. Ludwig, Jeffrey T. ECE Department Boston University Boston MA 02215 44 Cummington St. United States EECS Department Massachusetts Inst. of Technology Cambridge MA 02139 77 Massachusetts Ave. United States Massachusetts Inst. of Technology United States Dept. of Elec. and Comp. Engineering Boston University United States MIT University of Massachusetts Amherst MA United States IEEE Signal Processing Society United States Boston University United States Tel Aviv University Israel MIT Lincoln Laboratory Woods Hole Oceanographic Institution United States National Academy of Engineering University of California Berkeley CA United States Department of Electrical Engineering Massachusetts Inst. of Technology Cambridge MA United States Faculty Development Award IEEE Communications Society Japan Georgia Institute of Technology United States Ocean Technology Inc. Burbank CA United States Digital Signal Processing Group Research Laboratory of Electronics MIT United States

It is increasingly important to structure signal processing algorithms and systems to allow for trading off between the accuracy of results and the utilization of resources in their implementation. In any particular context, there are typically a variety of heuristic approaches to managing these tradeoffs. One of the objectives of this paper is to suggest that there is the potential for developing a more formal approach, including utilizing current research in computer Science on Approximate Processing and one of its central concepts, Incremental Refinement. Toward this end, we first summarize a number of ideas and approaches to approximate processing as currently being formulated in the computer science community. We then present four examples of signal processing algorithms/systems that are structured with these goals in mind. These examples may be viewed as partial inroads toward the ultimate objective of developing, within the context of signal processing design and implementation, a more general and rigorous framework for utilizing and expanding upon approximate processing concepts and methodologies.

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