Southeastcon '88., IEEE Conference Proceedings

10-13 April 1988

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Displaying Results 1 - 25 of 143
  • Conference Proceedings: 1988 IEEE SOUTHEASTCON (Cat. No.88CH2571-8)

    Publication Year: 1988
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    Freely Available from IEEE
  • Z-80 CPU Bus Monitor/Analyzer

    Publication Year: 1988, Page(s):181 - 185
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (298 KB)

    The Z-80 CPU Bus Monitor/Analyzer is a custom-designed circuit that was developed to further enhance the capabilities of an 8-bit-microprocessor training system presented at the University of Louisville. Although originally designed to be used with the Z-80 based FOX Microprocessor Training System, the unit can just as easily be used with any 8-bit microprocessor system that supports the popular S... View full abstract»

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  • An expert system for matrix analysis (ExMat)

    Publication Year: 1988, Page(s):533 - 536
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (206 KB)

    A rule-based expert system (ExMat) for analyzing matrices and systems of linear equation is presented. ExMat allow the user to enter a coefficient matrix and the right-hand side vector of the system. Based on rules derived from the subject area of matrix theory and matrix numerical analysis, ExMat provides an expert analysis of the system. The analysis includes solvability of the systems, and the ... View full abstract»

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  • Synchronizing torque matrices in multimachine power systems

    Publication Year: 1988, Page(s):592 - 596
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (328 KB)

    The synchronizing torque matrices for a multimachine power system are analyzed. Two representations are used: the classical and a detailed one. It is shown that steady-state instability can be identified by checking the signs of the roots of the synchronizing matrix. This method has the advantage of the applicability to any representation classical or detailed. It also does not have the disadvanta... View full abstract»

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  • Future role of packaged cogeneration systems

    Publication Year: 1988, Page(s):587 - 591
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (276 KB)

    A survey of the current packaged cogeneration systems reveals their effectiveness in commercial applications such as hospitals, restaurants, and supermarkets. The authors assert that the limitations of the current systems can be overcome by the development and utilization of novel technologies. They present as a promising candidate fuel cell-based systems. Major development efforts for novel techn... View full abstract»

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  • Effect of aggregation methods on individual modes in reduced order power system models

    Publication Year: 1988, Page(s):579 - 586
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (536 KB)

    The extraordinary size and complexity of modern power systems results in an intense computational burden in transient stability studies. Use of reduced-order power system models could reduce the amount of the computations required by those studies. Such reduced-order models are called dynamic equivalents and can be derived by coherency-based techniques. A coherency-based equivalent is derived by f... View full abstract»

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  • Reference plane shift considerations for microstrip branch-line couplers

    Publication Year: 1988, Page(s):576 - 578
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (164 KB)

    A design method for microstrip branch-line couplers is investigated. The predominant design goal is to create a couple whose direct coupling and isolation response are centered about the correct frequency. Two separate designs are considered. One design considers the reference plane calculation at each tee junction in the device while another is based on a much less tedious design technique. Accur... View full abstract»

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  • Simulation of space-borne optical mass memory system

    Publication Year: 1988, Page(s):98 - 102
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (352 KB)

    Issues concerning spaceborne applications of an optical-disk mass memory system (ODMMS) are investigated through computer simulation. The simulation model is developed according to a current description of ODMMS with certain application restraints. The results are examined in terms of system modularity, multiuser data rate buffering, disk module access, and read/write file management. The conditio... View full abstract»

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  • Manufacturing workcell modelling and task facility

    Publication Year: 1988, Page(s):492 - 496
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (356 KB)

    The manufacturing workcell modeling and tasking facility acts as an interface between the physical world of the manufacturing workcell and the database of workcell models and tasks. The modeling and monitoring interface provides an expert manufacturing user with a data definition language for describing instances of manufacturing workcell components. The tasking interface uses the workcell models ... View full abstract»

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  • Automatic finite element grid generation in electromagnetics

    Publication Year: 1988, Page(s):571 - 575
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (344 KB)

    An automatic two-dimensional finite-element grid generator, which would greatly assist in improving preprocessing operations, and geometry handling, for electromagnetic field computations is presented. The algorithm developed iteratively triangulates a set of points, defining a field region, into optimal finite-element meshes. The mathematical procedures used in developing the algorithm is based o... View full abstract»

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  • Development of techniques for quick assessment of logic simulators

    Publication Year: 1988, Page(s):92 - 97
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (456 KB)

    The importance of computer-aided design (CAD) tools, specifically logic simulation systems, and the need for a quick evaluation scheme enabling prospective buyers to choose intelligently from numerous available systems is established. An evaluation scheme consisting of the examination of both qualitative and quantitative system attributes is presented. Benchmarking is introduced as an appropriate ... View full abstract»

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  • A study of the nature and characteristics of light radiation in reverse-biased silicon junctions

    Publication Year: 1988, Page(s):161 - 164
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (292 KB)

    Luminescence on the order of 0.01 W/cm2 is emitted in high electric field regions of the junction in reverse-biased silicon. The results of a study that sought to investigate the optical emission and to yield a probable emission mechanism are presented. The device characteristics, such as current-voltage, intensity-voltage, radiation spectra, and crystal defects, associated with the lig... View full abstract»

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  • Integrated robotics control

    Publication Year: 1988, Page(s):488 - 491
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (284 KB)

    An integrated environment for robotics control is presented. A case study using an IBM PC and a Heath Kit Hero-1 robot is discussed. The implementation includes immediate robot online mode and an integrated control mode which allows object recognition results to be communicated to the robot. The integrated environment also offers memory management for the robot's user memory and controls the commu... View full abstract»

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  • Tubular dielectric waveguides and resonators

    Publication Year: 1988, Page(s):566 - 570
    Cited by:  Papers (9)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (304 KB)

    The effect of the central hole in tubular dielectric waveguides is quantitatively displayed in eigenvalue diagrams for the five lowest modes of propagation. The measurement of the relative dielectric constant for tubular dielectric resonators is described. The tuning mechanism which utilizes a dielectric rod protruding into the tubular TM 01 resonator is analyzed by the finite integrate... View full abstract»

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  • Circuit simulation of CMOS faults

    Publication Year: 1988, Page(s):87 - 91
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (252 KB)

    The effect of short and open faults in CMOS circuits across a wide range of resistances using circuit, rather than logic, simulation is investigated. Circuit simulation is used to predict the rising and falling propagation delays and the supply current consumption for faulty and fault-free circuits when test vectors are applied. These results indicate the suitability of proposed fault detection te... View full abstract»

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  • Design, fabrication, and testing of a novel planar Schottky barrier diode for millimeter and submillimeter wavelengths

    Publication Year: 1988, Page(s):154 - 160
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (436 KB)

    A whiskerless diode has been developed for operation at 100 GHz. It uses an etched surface channel to minimize parasitic capacitance and simplify fabrication. The diode is mechanically rugged and suitable for high-vibration and cryogenic operation. DC I-V characteristics are comparable to the highest-quality whisker-contacted devices. An overview of device design, performance, an... View full abstract»

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  • Modeling of crosstalk in coupled microstrip lines

    Publication Year: 1988, Page(s):506 - 510
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (244 KB)

    A computer simulation of the crosstalk between coupled microstrip lines in both the time and frequency domains is presented. A SPICE software package is used to include inductive and capacitive coupling effects. The crosstalk results for various line parameters and line terminations are compared with results published in the literature. A technique for correlating the time- and frequency-domain cr... View full abstract»

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  • New algorithms for balancing binary search trees

    Publication Year: 1988, Page(s):378 - 382
    Cited by:  Papers (1)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (252 KB)

    A simple iterative algorithm is presented for balancing an arbitrary binary search tree in linear time. An efficient parallel algorithm is developed from the iterative algorithm using shared memory model. The number of processors used is equal to N, the number of nodes in the tree. The proposed algorithm has time complexity of O(1) View full abstract»

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  • First-order 2-D periodically shift-varying digital filters without limit cycles

    Publication Year: 1988, Page(s):619 - 623
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (216 KB)

    First-order 2-D linear shift-varying digital filters are investigated for limit cycles due to the nonlinear effects of quantization. Sufficient conditions are derived for suppressing limit cycle due to overflow and roundoff after multiplication. These conditions are relaxed for periodically shift-varying filters. The results are illustrated with an example View full abstract»

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  • Derivation of redundant wrist manipulators to avoid interior workspace singularities

    Publication Year: 1988, Page(s):403 - 407
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (300 KB)

    Nonredundant manipulators with six joints have interior workspace singular configurations at which the manipulators lose one of their orienting degrees of freedom. Various types of workspaces, configuration space and boundary are defined in order to discuss the cause of manipulator degeneracies. The symbolic Jacobian is used to explore the singularities of a spherical wrist. The redundant spherica... View full abstract»

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  • Some applications of the current divider principle to physical networks: a network thermodynamic approach to a `biological' circuit theory

    Publication Year: 1988, Page(s):424 - 429
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (412 KB)

    Network thermodynamics is a relatively young field, in which classical network theory is applied to a broader class of systems than those traditionally found in electronics. L. Peusner (1986) has developed a technique for treating chemical reaction kinetics as resistive networks in the steady state and as R-C networks in the transient state. Simulation programs originally designed for circuit simu... View full abstract»

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  • Mode evolution for rotationally symmetric resonant cavities loaded with inhomogeneous dielectric

    Publication Year: 1988, Page(s):561 - 565
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (312 KB)

    The finite integration technique (FIT) has been developed for the numerical solution of interior electromagnetic boundary value problems with rotational symmetry. The main advantage of the FIT computer implementation (FITPAK) is its generality, that is, its ability to solve for resonant frequencies, quality factors, and field distributions for a user-defined number of modes in cylindrical cavities... View full abstract»

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  • Design strategies for MAP based fault-tolerant industrial local computer networks

    Publication Year: 1988, Page(s):81 - 86
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (404 KB)

    A dual-bus local computer network is described. Its performance is evaluated using analytical models. Simulation is used where analysis is mathematically intractable. The study shows the tradeoffs of distributing the communication functions on the outbound network interface unit. The impact of hardware/software failures on the network performance is also studied View full abstract»

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  • Novel GaAs Schottky barrier diode structures

    Publication Year: 1988, Page(s):149 - 153
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (336 KB)

    Design of Schottky barrier diodes for use in high frequency applications is limited by the tradeoff between V0, the inverse slope parameter, and the RsC j0 product. This, in turn limits the minimum noise and conversion loss of the receivers which use these devices. Two technologies, the graded doped barrier diode and the Schottky barrier ... View full abstract»

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  • A Unix command line argument processor

    Publication Year: 1988, Page(s):484 - 487
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (260 KB)

    The design and implementation of a package, cmdlineparse, for processing command-line arguments are presented. The package uses a definition of command line arguments that is subset of that used in the Unix Bourne shell. The package eliminates the need for traditional command-line argument processing and results in shorter, more consistent handling of arguments. Program correctness is improved as ... View full abstract»

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