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The Set Union Problem With Unlimited Backtracking, Alberto Apostolico, Guiseppe F. Italiano, Giorgio Gambosi, Maurizic Talamo Sep 1989

The Set Union Problem With Unlimited Backtracking, Alberto Apostolico, Guiseppe F. Italiano, Giorgio Gambosi, Maurizic Talamo

Department of Computer Science Technical Reports

No abstract provided.


Virtual Memory For Diskless Desktop Workstations, Douglas E. Comer, James Griffioen Sep 1989

Virtual Memory For Diskless Desktop Workstations, Douglas E. Comer, James Griffioen

Department of Computer Science Technical Reports

No abstract provided.


Curvature Adjusted Parameterization Of Curves, Richard R. Patterson, Chanderjit Bajaj Sep 1989

Curvature Adjusted Parameterization Of Curves, Richard R. Patterson, Chanderjit Bajaj

Department of Computer Science Technical Reports

No abstract provided.


Analysis Of Digital Tries With Markovian Dependency, P. Jacquet, Wojciech Szpankowski Sep 1989

Analysis Of Digital Tries With Markovian Dependency, P. Jacquet, Wojciech Szpankowski

Department of Computer Science Technical Reports

No abstract provided.


A Note On The Height Of Suffix Trees, Luc Devroye, Wojciech Szpankowski, Bonita Rais Sep 1989

A Note On The Height Of Suffix Trees, Luc Devroye, Wojciech Szpankowski, Bonita Rais

Department of Computer Science Technical Reports

No abstract provided.


An Optimal Parallel Algorithm For The Minimum Circle-Cover Problem, Mikhail J. Atallah, Danny Z. Chen Sep 1989

An Optimal Parallel Algorithm For The Minimum Circle-Cover Problem, Mikhail J. Atallah, Danny Z. Chen

Department of Computer Science Technical Reports

No abstract provided.


Optimal Canonization Of All Substrings Of A String, A. Apostolico, M. Crochemore Aug 1989

Optimal Canonization Of All Substrings Of A String, A. Apostolico, M. Crochemore

Department of Computer Science Technical Reports

No abstract provided.


Convergence Domains Of The Ssor Iterative Method For Generalized Consistently Ordered Matrices, A. Hadjidimos, M. Neumann Aug 1989

Convergence Domains Of The Ssor Iterative Method For Generalized Consistently Ordered Matrices, A. Hadjidimos, M. Neumann

Department of Computer Science Technical Reports

No abstract provided.


Implementing Object Support In The Raid Distributed Database System, Bharat Bhargava, Prasun Dewar, James G. Mullen, Jagannathan Srinivasan Aug 1989

Implementing Object Support In The Raid Distributed Database System, Bharat Bhargava, Prasun Dewar, James G. Mullen, Jagannathan Srinivasan

Department of Computer Science Technical Reports

No abstract provided.


A Model For Adaptable Systems For Transaction Processing, Bharat Bhargava, John Riedl Aug 1989

A Model For Adaptable Systems For Transaction Processing, Bharat Bhargava, John Riedl

Department of Computer Science Technical Reports

No abstract provided.


Nonpreemptive Ensemble Motion Planning On A Tree, Gred N. Frederickson, D. J. Guan Aug 1989

Nonpreemptive Ensemble Motion Planning On A Tree, Gred N. Frederickson, D. J. Guan

Department of Computer Science Technical Reports

No abstract provided.


An Architecture For High-Speed Packet Switched Networks (Thesis), Rajendra Shirvaram Yavatkar Aug 1989

An Architecture For High-Speed Packet Switched Networks (Thesis), Rajendra Shirvaram Yavatkar

Department of Computer Science Technical Reports

No abstract provided.


Naive Asymptotics For Hitting Time Bounds In Markov Chains, Vernon J. Rego Aug 1989

Naive Asymptotics For Hitting Time Bounds In Markov Chains, Vernon J. Rego

Department of Computer Science Technical Reports

No abstract provided.


Propagation Of Nonsinusoidal Waveforms In Power Systems, Robert Sparks Aug 1989

Propagation Of Nonsinusoidal Waveforms In Power Systems, Robert Sparks

Department of Electrical and Computer Engineering Technical Reports

Several computationally efficient and innovative methods for the calculation of power system voltages due to nonsinusoidal demand currents are studied. The method is useful for power quality calculations. The method is introduced by using Laplace transform analysis to simplify the convolution of the transfer impedances and the demand currents. An iterative numerical inverse Laplace transform method is briefly examined. However, the problem characteristics allow Fourier transform analysis to be used. Furthermore, the fast Fourier transform is used to approximate the continuous Fourier transform. This discrete transform analysis method proves to be conveniently suitable to the problem definition. More importantly the …


Rssim: A Simulation Program For Optical Remote Sensing Systems, John P. Kerekes, David A. Landgrebe Aug 1989

Rssim: A Simulation Program For Optical Remote Sensing Systems, John P. Kerekes, David A. Landgrebe

Department of Electrical and Computer Engineering Technical Reports

RSSIM is a comprehensive simulation tool for the study of multispectral remotely sensed images and associated system parameters. It has been developed to allow the creation of realistic multispectral images based on detailed models of the surface the atmosphere, and the sensor. It also can be used to study the effect of system parameters on an output measure, such as classification accuracy or class separability. In this report the operation and use of RSSIM is described. In this first section the implementation of the program is discussed, followed by examples of its use. In section 2 the structure and algorithms …


Performance Characteristics Of Switched Reluctance Motor Drive, M. Moallem, C. M. Ong Aug 1989

Performance Characteristics Of Switched Reluctance Motor Drive, M. Moallem, C. M. Ong

Department of Electrical and Computer Engineering Technical Reports

In this report, methods and computational techniques for predicting the static and steady state characteristics of a switched reluctance motor drive are developed and the predicted characteristics are compared with experimental results. Because of high local saturation and narrow airgap in the SR motor, accurate calculation of the static characteristics of the torque, flux linkage, inductances, and speed emf from its FE field solution is not straightforward. For the purpose of this study, a two-dimensional finite element model is developed to handle the nonlinear magnetic field inside the machine. Based on a thorough study of the potential sources of errors …


Multiple Network Embeddings Into Hypercubes, Ajay K. Gupta, Susanne E. Hambrusch Aug 1989

Multiple Network Embeddings Into Hypercubes, Ajay K. Gupta, Susanne E. Hambrusch

Department of Computer Science Technical Reports

No abstract provided.


The Dq Analysis Of A Variable Reluctance Stepper Motor, David J. Kish Aug 1989

The Dq Analysis Of A Variable Reluctance Stepper Motor, David J. Kish

Department of Electrical and Computer Engineering Technical Reports

Variable reluctance stepper motors are commonly used in applications where incremental motion is desired. Recently, these motors have been used in situations which call for a large stepping rate; so large in fact, that the motor hums continuously. Although the equations which describe the stepper motor in this mode are decoupled, they are not time invariant. In order to eliminate the time varying terms, Park’s transformation is applied to the motor equations. It is found that this transformation does not render the system equations time invariant, so an averaging technique is employed which does provide the desired time invariance. The …


An O(H^6) Quintic Spline Collocation Method For Second Order Two-Point Boundary Value Problems, M. Irodotou-Ellina, Elias N. Houstis, S. B. Kim Aug 1989

An O(H^6) Quintic Spline Collocation Method For Second Order Two-Point Boundary Value Problems, M. Irodotou-Ellina, Elias N. Houstis, S. B. Kim

Department of Computer Science Technical Reports

No abstract provided.


Algebraic And Numerical Techniques For Offsets And Blends, Christoph M. Hoffmann Jul 1989

Algebraic And Numerical Techniques For Offsets And Blends, Christoph M. Hoffmann

Department of Computer Science Technical Reports

No abstract provided.


A Paradigm For Concurrency Control In Heterogeneous Distributed Database Systems, Weimin Du, Ahmed K. Elmagarmid Jul 1989

A Paradigm For Concurrency Control In Heterogeneous Distributed Database Systems, Weimin Du, Ahmed K. Elmagarmid

Department of Computer Science Technical Reports

No abstract provided.


Efficient Implementation Of Modularity In Raid, Charles Koelbel, Fady Lamaa, Bharat Bhargava Jul 1989

Efficient Implementation Of Modularity In Raid, Charles Koelbel, Fady Lamaa, Bharat Bhargava

Department of Computer Science Technical Reports

No abstract provided.


Communication In The Raid Distributed Database System, Bharat Bhargava, Enrique Mafla, John Riedl Jul 1989

Communication In The Raid Distributed Database System, Bharat Bhargava, Enrique Mafla, John Riedl

Department of Computer Science Technical Reports

No abstract provided.


Communication-Based Recovery In Replicated Databases, Bharat Bhargava, Shirley Browne Jul 1989

Communication-Based Recovery In Replicated Databases, Bharat Bhargava, Shirley Browne

Department of Computer Science Technical Reports

No abstract provided.


Parallel Rectilinear Shortest Paths With Rectangular Obstacles, Mikhail J. Atallah, Danny Z. Chen Jul 1989

Parallel Rectilinear Shortest Paths With Rectangular Obstacles, Mikhail J. Atallah, Danny Z. Chen

Department of Computer Science Technical Reports

No abstract provided.


Parallel Asynchronous Connected Components In A Mesh, Susanne E. Hambrusch, Michael Luby Jul 1989

Parallel Asynchronous Connected Components In A Mesh, Susanne E. Hambrusch, Michael Luby

Department of Computer Science Technical Reports

No abstract provided.


Digital Measurement Of Partial Discharge, James Patrick Steiner, W. L. Weeks Jul 1989

Digital Measurement Of Partial Discharge, James Patrick Steiner, W. L. Weeks

Department of Electrical and Computer Engineering Technical Reports

Various new measurement techniques have been developed for a high voltage phenomenon referred to as partial discharge. Partial discharge is a localized breakdown of the high voltage insulation system which is observed as low level, random emissions. Both electrical and acoustic emissions have been measured in underground power cables, solid cast power transformers and in lumped specimens. Typical problems complicating the measurements are the randomness of the emission, high levels of interference and extreme distortion of the signal by the propagation path. Various signal processing techniques have been adapted to the measurement of partial discharge. The techniques investigated are capable …


Tutorial On Lisp Object- Oriented Programming For Blackboard Computation (Solving The Radar Tracking Problem), P. R. Kersten, A. C. Kak Jul 1989

Tutorial On Lisp Object- Oriented Programming For Blackboard Computation (Solving The Radar Tracking Problem), P. R. Kersten, A. C. Kak

Department of Electrical and Computer Engineering Technical Reports

This exposition is a tutorial on how object-oriented programming in Lisp can be used for programming a blackboard. Since we have used Franz Lisp and since object oriented programming in Franz is carried out via flavors, the exposition demonstrates how flavors can be used for this purpose. The reader should note that the different approaches to object-oriented programming share considerable similarity and, therefore, the exposition should be helpful to even those who may not wish to use flavors. We have used the radar tracking problem as a ‘medium’ for explaining the concepts underlying blackboard programming. The blackboard database is constructed …


Control Of Dynamic Systems Via Neural Networks, Stanislaw H. Zak, S. Mehdi Madani-Esfahani, Stefen Hui Jul 1989

Control Of Dynamic Systems Via Neural Networks, Stanislaw H. Zak, S. Mehdi Madani-Esfahani, Stefen Hui

Department of Electrical and Computer Engineering Technical Reports

This report is devoted to the problem of controlling a class of linear time-invariant dynamic systems via controllers based on additive neural network models. In particular, the tracking and stabilization problems are considered. First, we show how to transform the problem of tracking a reference signal by a control system into the stabilization problem. Then, some concepts from the variable structure control theory are utilized to construct stabilizing controllers. In order to facilitate the stability analysis of the closed-loop systems we employ a special state space transformation. This transformation allows us also to reveal connections between the proposed controllers and …


Performability Evaluation Of Gracefully Degradable Systems, Christoph W. Lindemann Jun 1989

Performability Evaluation Of Gracefully Degradable Systems, Christoph W. Lindemann

Department of Computer Science Technical Reports

No abstract provided.