Engineering Commons^™

Stability Of Polynomials Under Correlated Coefficient Perturbations., M. K. Saridereli, Frank J. Kern

Electrical and Computer Engineering Faculty Research & Creative Works

The robust stability of polynomials with respect to real parameter variations is investigated. The coefficients of the polynomial are assumed to be linear functions of several real parameters. An algorithm to calculate the maximum allowable variations of the parameters so the roots still remain in prescribed regions of the complex plane is presented. Examples are given to illustrate the method.

Robust Control Of A Csi-Fed Induction Motor Drive System, Rajiva Prakash, Vittal S. Rao, Frank J. Kern

Electrical and Computer Engineering Faculty Research & Creative Works

An application of modern control theory to the control of a current-source-inverter (CSI) fed induction motor drive system is presented. A linear quadratic Gaussian (LQG) control scheme is developed in which the Kaiman filter is tuned for high robustness by a method of Doyle and Stein. The design is carried out for a sample system, and the robustness analysis and computer simulation results are included. Copyright © 1987 by The Institute of Electrical and Electronics Engineers, Inc.

Nebraska Summary: S025 John Deere 2355, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Summary: S024 John Deere 2155, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Summary: S013-S014 Massey Ferguson 3090, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Summary: S009-S010 Massey Ferguson 3060, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Summary: S007-S008 Massey Ferguson 3050, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Summary: S043 Case-Ih 9170, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Summary: S042 Case-Ih 9150, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Summary: S041 Case-Ih 9130, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Summary: S033 Massey Ferguson 390, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Summary: S032 Massey Ferguson 375, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Summary: S035-S036 Massey Ferguson 398, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Summary: S110 Lamborghini 874 90 Dt, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Summary: S093 S.A.M.E Explorer 90dt, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Nebraska Summary: S092 S.A.M.E Explorer 80dt, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Integrated Detonator Delay Circuits And Firing Console, Lawson J. Tyler, Paul Nicholas Worsey

Mining Engineering Faculty Research & Creative Works

A detonation system for use with supply of electrical energy has user operable firing console for selectably transmitting unit identification information, firing delay time information and selections from a command set including Output, Delay, Fire (Time), Abort, Power Up (Arm), Input, and Store. The console displays responses or information digested from responses by electrical delay detonators to the commands. The detonators have explosive, a capacitor for storing energy from the supply to set off the explosive, circuitry for charging the capacitor from the supply and transferring the energy from the capacitor to the explosive in response to first and second …

Continuous Statistical Distribution Curve Fitting And Analysis Tool, Gerald Robie

Retrospective Theses and Dissertations

This paper reports on the implementation and utilization of a micro-computer based simulation modeling verification and validation tool. The interactive software tool, written in BASIC, computes and displays the frequency distribution of a given set of input data, computes appropriate parameters for a continuous statistical distribution which the user selects as likely to represent the population from which the input data sample was obtained, performs several goodness-of-fit analyses on the resultant distribution and provides sensitivity analysis capability on the input data, distribution type selection and distribution parameters.

Implementation Of A Parallel Ynet Architecture, Julie Nadeau Leblanc

Retrospective Theses and Dissertations

A simulation of an alternate implementation of a redundant busing network based on the Teradata Ynet architecture is presented. An overview of the Teradata DBC/1012 data base parallel processing computer including the Ynet, an active logic busing network, is given. Other multiprocessor busing networks are examined and compared to the standard Ynet and the alternate Ynet.

In the standard Ynet system, two networks, called Ynets, process message packets concurrently. When one of the Ynet paths fails, the system is reset. The remaining Ynet path restarts using the previously interrupted packets and processing continues without the aid of the failed Ynet. …

Integration Of Computer Generated Images With Ntsc Video, Keith E. Lorenz

Retrospective Theses and Dissertations

From the growing field of computer graphics comes the need to combine the computer graphics with video from other sources. Combining video from separate sources creates a problem since both sources are synchronous to each other. The objective of this research report is to present a hardware design approach that will combine two asynchronous video sources to produce one video picture. The combining of two video sources is called “overlaying.” The hardware design described in this report will overlay video from a Digital Equipment Computer PRO-350 with the video from an RS-170 video source. The design approach presented includes system …

Experimental Verification Of Laser Speckle Power Spectral Density, Christopher T. Chiles

Retrospective Theses and Dissertations

The dependence of laser speckle power spectral density on the autocorrelation of the aperture pupil function was verified using a charge injection device (CID) camera. Speckle patterns acquired by the CID array were processed to compute the power spectral density (PSD). Three aperture shapes were studied. There was good agreement between the theoretical and experimental power spectral density shapes, and the cutoff frequencies agreed within five percent error.

A Simulation Study Of A Limited Sensing Random Access Algorithm For A Local Area Network With Voice Users, Robert M. Spillers

Retrospective Theses and Dissertations

The purpose of this work is to evaluate the perfonnance of a limited sensing random access algorithm in a local area network with voice users. Random access algorithms have proven to be very efficient in local area network environments with data users. However, in contrast to data packets, voice packets cannot be allowed to experience long delays, because of the requirement that a voice "data stream" must be played out at the receiver. If a voice packet does exceed its established maximum delay, it is discarded. This simulation study finds the number of voice users that a network can support, …

Bias Optimization For Noise Reduction In Focal Plane Arrays, Kirk B. Reiff

Retrospective Theses and Dissertations

A gain enhanced common gate transresistance circuit is typically used as the coupling circuit between detector and multiplexer in a focal plane array. At an operating temperature of 77 degrees Kelvin, the dominant noises in the system are shot noise and 1/f noise. The 1/f noise corner frequency of the CMOS amplifiers used in focal plane arrays can .be as high as 10 kHz. In this paper it is shown that the 1/f noise corner frequency contributed to the system noise by the amplifier is a function of the bias voltage applied to the photodiode detector. Specifically, as the reverse …

Crack Growth Gages For Monitoring Fatigue Damage : Final Informational Report, Charles Kpakpo Nmai, Mark D. Bowman

JTRP Technical Reports

No abstract provided.

Investigation On Latex-Modified Bridge Deck Overlay Concrete, Sidney Diamond

JTRP Technical Reports

No abstract provided.

Cost Reduction And Increased Efficacy Of Growth Retardant Mixtures For Vegetation Management Along Indiana Roadsides, D. James Morré

JTRP Technical Reports

No abstract provided.

A Mathematical Model For The Initial Corrosion Rate Of A Porous Layer On A Rotating Disk Electrode, William E. Ryan, Ralph E. White, S. L. Kelly

Faculty Publications

A mathematical model is presented for the initial corrosion rate of a porous layer on a rotating disk electrode. The model is used to predict the corrosion potential and corrosion current density for a porous electrode made of pure iron in aerated caustic solutions. The dependence of these predictions on some of the properties of the porous layer is presented. It is shown that the corrosion rate depends significantly on the specific surface area of the porous electrode.

Evaluation Of Concrete Pavement Performance With Related Cracking And/Or Voids Under I-10 Concrete Pavement, Cecil R. Henderson

Retrospective Theses and Dissertations

Under existing concrete highway payments there are voids that develop because of the pumping action of the slabs. The presence of free water, curled slabs from temperature and moisture gradients, and heavy wheel loads combine to provide this problem. The result is pumping and erosion of the base material, nonuniform support of the pavement slab, and eventual breakup of the concrete slabs. Two methods of voids detection were utilized in this study to compare one against the other. The first method used the Falling Weight Deflectometer (FWD) and the second method used the Ground Penetrating Radar (GPR) unit. Deflection readings …

Applications Of Simulation And Animation In Facilities Planning And Design, William Joseph Mattingly

Retrospective Theses and Dissertations

Recent developments of simulation software have made computer simulation and animation popular system problem-solving techniques. One field that has many potential applications for computer simulation and animation is in the area of facilities planning and design. The purpose of this paper is to provide the facilities planner with information to assist in determining when, why, how and what simulation software should be implemented to solve facilities planning and design problems. Also, the usefulness of simulation and animation to the facilities planner is evaluated and areas for improving software for future application in facilities planning and design are identified. TO assist …

A Rapid Acquisition Technique For Direct Sequence Spread Spectrum Systems By A Pn Phase Multiplexed Correlator, Greg S. Rawlins

Retrospective Theses and Dissertations

With the proliferation of direct sequence spread spectrum (DSSS) systems in the communications arena, synchronization techniques that offer improved performance and higher speed are of great value to the spread spectrum designer and user. Matched filter approaches have gained momentum in recent years due to SAW filter technology, while sliding correlators have experienced slower development. This paper introduces a unique multi-phase correlator intended to decrease the mean time to acquire synchronization by exploiting properties of Gold codes and other pseudo-noise (PN) sequences. These properties are used to create a novel signal structure for the local correlator. A brief explanation of …