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Southeastcon '91., IEEE Proceedings of

Date 7-10 April 1991

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Displaying Results 1 - 25 of 285
  • IEEE Proceedings of SOUTHEASTCON '91 (Cat. No.91CH2998-3)

    Publication Year: 1991
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  • Determination of implanted electrode potential distributions in a man model

    Publication Year: 1991, Page(s):1130 - 1134 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    The finite-element (FE) method has been used to analyze and determine the potential distribution produced by implanted stimulating electrodes used in conjunction with an implanted defibrillator. These electrodes are used to deliver an energy shock to halt ventricular fibrillation during fatal arrhythmias in human beings. The FE solution was obtained by solving the Laplace equation on the basis of ... View full abstract»

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  • Algorithms for the generation of commutative semigroups of order eight

    Publication Year: 1991, Page(s):53 - 54 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (136 KB)

    An algorithm for the generation of semigroups of small order is given. Special attention is paid to techniques allowing efficient pruning with respect to associativity, commutativity, and isomorphism class. A progress report on the attempt to use this algorithm for enumeration of the commutative semigroups of order eight is presented View full abstract»

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  • Example industry/university-developed telecommunications continuing education program

    Publication Year: 1991, Page(s):529 - 531 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    Some of the lessons learned in preparing and presenting a continuing education technical program known as the leading edge education program to telecommunications professionals of South Central Bell are presented. The organization of the program is discussed, with emphasis given to issues which the instructor has to address during the presentation of the program. These issues are classified into t... View full abstract»

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  • A pocket-size broadband electric field detection and storage device

    Publication Year: 1991, Page(s):1124 - 1129 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (688 KB)

    The radio-frequency (RF) dosimeter developed by the Oak Ridge National Laboratory is described. It is a portable, pocket-sized, cumulative-dose recording device designed to detect and record the strengths and durations of electric fields present in the work areas of naval vessels. The device measures an integrated dose and records the electric fields that exceed the permissible levels set by the A... View full abstract»

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  • Computer analysis of user session transcripts for evaluation of the human-computer interface

    Publication Year: 1991, Page(s):1011 - 1015 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    A joint research venture between Virginia Tech's Dialogue Management Project and the Contel Technology Center (CTC) in Chantilly, Virginia, is discussed. Its goal for the Virginia Tech researchers to provide an interactive tool to be used in CTC's usability laboratory to aid in analysis of usability test results and improve the human-computer interface. The authors present the interactive tool, ca... View full abstract»

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  • Multiple-radix arithmetic on parallel machines and applications to cryptology

    Publication Year: 1991, Page(s):48 - 52 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    The multiple-radix representation of integers is a candidate for improving computations involving large integers using parallel processors. Results are found for efficiently comparing two numbers in multiple-radix form, and also for reducing one number modulo a fixed number in multiple-radix form. Results of the implementations of these methods, and of their applications to cryptology, on the CM-2... View full abstract»

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  • An integrated circuit for real-time tissue contrast enhancement in ultrasound diagnostic imaging systems

    Publication Year: 1991, Page(s):479 - 481 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (200 KB)

    The design and implementation of a custom-integrated circuit chip for use in an experimental ultrasound imaging system are described. The chip uses a six-stage pipeline to implement an adjustable transfer characteristic containing three degrees of freedom. The adjustable transfer characteristics is implemented using a unique binary search based algorithm. This approach results in less chip area re... View full abstract»

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  • Survey of industry and university telecommunication continuing education programs

    Publication Year: 1991, Page(s):525 - 528 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    The author surveys existing telecommunications continuing education programs, namely the South Central Bell leading edge education (LEE) program presented by the University of Alabama at Birmingham and by BELLCORE and the BELLCORE-sponsored program presented by Carnegie-Mellon University. He also reviews BellSouth Services plans for a new strategic professional development (SPD) program that combi... View full abstract»

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  • A two-channel PC-based hardware implementation of the maximum likelihood classifier for the Shuttle ice detection system

    Publication Year: 1991, Page(s):591 - 595 vol.1
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (612 KB)

    A PC-based near-real-time implementation of the two-channel maximum-likelihood classifier for the Space Shuttle ice detection system is described. A menu-drive image processing system was developed to implement the classification process. Attention is given to the system history, requirements, and testing, as well as to system implementation, spectral signatures from imagery data, and image proces... View full abstract»

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  • Hurst's rescaled-range (R/S) analysis and fractal dimension of electromyographic (EMG) signal

    Publication Year: 1991, Page(s):1121 - 1123 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (228 KB)

    A microcomputer-based real-time signal acquisition system has been developed for online characterization of electromyographic (EMG) signals. A set of EMG signals is collected from three different patient groups: normal, neuropathic, and myopathic. The intramuscular signals are collected real-time for 2-3 s, during which the patient performs a continuous ramp contraction. The time-varying dynamic n... View full abstract»

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  • The National Teacher Enhancement Program (K-8) coordinated by the Oak Ridge National Laboratory

    Publication Year: 1991, Page(s):28 - 32 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (404 KB)

    The National Teacher Enhancement Program (NTEP), focusing on teachers from grades K-8, is discussed. It calls for a three-week workshop to be conducted at each participating laboratory followed by in-service training and other activities during the year. The NSF/NTEP protocol dictates networking among the participating organizations and some of the teachers. An assessment effort is also an integra... View full abstract»

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  • Engineering a software environment for distance education

    Publication Year: 1991, Page(s):1008 - 1010 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    The authors describe an industry/university software engineering project which, after extensive classroom testing, has resulted in a commercial product that adds to a school's educational environment at reasonable cost. Software design, analysis, and refinement are described View full abstract»

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  • Optimization of a cognitron type neural network

    Publication Year: 1991, Page(s):736 - 740 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    Optimization studies on a recognition neural network based on K. Fukushima's cognitron (1975) are presented. The goal was to increase the selectivity and robustness of the network, which was used as the final stage identifier in an integrated vision network invariant to translation, rotation, and scaling. Unlike the original cognitron, different inhibitory parameters were introduced for differenti... View full abstract»

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  • A VLSI DSP chip for real time iterative deconvolution

    Publication Year: 1991, Page(s):70 - 73 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    The design of a CMOS VLSI chip to perform real-time iterative deconvolution is presented. A bit-level systolic array architecture for convolution, multiplication, and addition is used to implement the circuit. A brief introduction to the iterative deconvolution problem is also given. Simulations done to data have shown that the systolic array portions of the chip will yield satisfactory throughput... View full abstract»

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  • K-12 education outreach at Sandia National Laboratories

    Publication Year: 1991, Page(s):46 - 47 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (100 KB)

    Sandia National Laboratories has established an Education Outreach Division which consists of both a kindergarten through twelfth grade (K-12) program group and a university/college (post secondary) program group. The projects under the responsibility of the K-12 program group are described. Attention is given to the science advisor project, voluntary projects, and sponsored/voluntary projects View full abstract»

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  • A software design tool for real-time, data-flow architectures

    Publication Year: 1991, Page(s):626 - 630 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    The authors describe a software design tool which aids in the evaluation of performance, determination of resource requirements, and selection of operating points for an algorithm implemented in an ATAMM algorithm-to-architecture-mapping-mod defined data-flow architecture. Algorithms are restricted to the class of large-grained, decision-free algorithms. Applications include real-time implementati... View full abstract»

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  • A tool to evaluate error checking algorithms used by local area networks

    Publication Year: 1991, Page(s):163 - 167 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (440 KB)

    Presents a software package, TechCheck, that can be used by a developer of protocols of local area networks to evaluate error checking algorithms. The objective of TechCheck is to test variations of error checking algorithms that are to be implemented in protocols of computer networks. The user can utilize TechCheck to obtain an independent assessment of error-checking algorithms that may be part ... View full abstract»

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  • Cost-optimal parallel algorithms for traversing trees

    Publication Year: 1991, Page(s):474 - 478 vol.1
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    The authors present cost-optimal parallel algorithms for depth-order (e.g., pre-, in-, and post-order) and level-order (e.g., breadth-first and breadth-depth) traversals of general trees with n nodes. Each of the algorithms requires O(n/p+log n) time using pn processors on the EREW (exclusive read, exclusive write) PRAM (parallel random a... View full abstract»

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  • Measurement of thermal noise in condenser microphones and associated preamplifier in a vacuum-isolation vessel

    Publication Year: 1991, Page(s):520 - 524 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    The electrical noise generated by thermal agitation of the air molecules impinging upon the membrane of a condenser microphone and from its associated preamplifier has been studied analytically and experimentally over a wide bandwidth. These background noise levels constitute one of the most important specifications of a microphone, for they determine the lowest sound pressure than can be detected... View full abstract»

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  • A decentralized scheduling algorithm for distributed systems

    Publication Year: 1991, Page(s):205 - 208 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (172 KB)

    Scheduling resource requests is essential for a high-performance distributed environment. The author proposes a decentralized scheduling algorithm in which the control of the mechanism is fully distributed. The scheduling is accomplished by passing tokens and stamps among nodes. Since the control is decentralized, reliability is enhanced and the congestion of message traffic is reduced View full abstract»

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  • Parallel algorithm for direct domination on nonoverlapping rectangles

    Publication Year: 1991, Page(s):586 - 590 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    The author presents a parallel algorithm for a computational geometry problem which is motivated by the constraint graph used in compaction of VLSI circuits. Let R be a set of n nonoverlapping rectangles, whose sides are parallel to the x and y coordinate axes. The dominance graph on R is a directed graph with R as vertex set; for rectangles ... View full abstract»

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  • Design of VLSI adaptive neural network

    Publication Year: 1991, Page(s):89 - 93 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    The design and simulation of an adaptive analog neural architecture which is highly suitable for CMOS VLSI implementation are reported. To allow the construction of these networks, CMOS analog VLSI building blocks (synapse and neuron) were proposed. The speciality of the synapse module is its ability to perform the learning phase on the chip itself based on a learning rule denoted by the sign algo... View full abstract»

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  • Multidimensional filtering of the electrocorticogram (ECoG) for epileptic focus localization

    Publication Year: 1991, Page(s):1116 - 1120 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    The rationale of a method for the detection and localization of focal epileptic activity from multichannel ECoG recordings is introduced. The proposed method, the spatiotemporal Laplacian, emphasizes the need to consider both the spatial and the temporal attributes of focal epileptic activity. In its current implementation the method discriminates the events of interest by means of combined measur... View full abstract»

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  • On the mechanical design of a Stewart platform-based robotic end-effector

    Publication Year: 1991, Page(s):875 - 879 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    The authors present the mechanical design of a robotic end-effector which has six degrees of freedom and was built to study autonomous robotic assembly in space. The end-effector's design is based on the mechanism of the Stewart platform. The end-effector consists mainly of two platforms coupled by six linear actuators driven by DC motors. Position feedback is achieved by six linear displacement t... View full abstract»

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