Engineering Commons^™

Nebraska Summary: S048 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 …

Ion Exchange Properties Of Titania Gels Prepared From Titanous Chloride And Amonium Carbonate, Nahed Latif Yacoub

Archived Theses and Dissertations

No abstract provided.

Matrix Methods Of Approximating Classical Predator-Prey Problems, E. Y. Rodin, R. Greenberg, B. Nelson

Computer Science: Faculty Publications and Other Works

No abstract provided.

An Optically Controlled Closing And Opening Semiconductor Switch, K. H. Schoenbach, V. K. Lakdawala, R. Germer, S. T. Ko

Electrical & Computer Engineering Faculty Publications

A concept for a bulk semiconductor switch is presented, where the conductivity is increased and reduced, respectively, through illumination with light of different wavelengths. The increase in conductivity is accomplished by electron ionization from deep centers and generation of bound holes. The reduction of conductivity is obtained by hole ionization from the excited centers and subsequent recombination of free electrons and holes. The transient behavior of electron and hole density in a high power semiconductor (GaAs:Cu) switch is computed by means of a rate equation model. Changes in conductivity by five orders of magnitude can be obtained.

Generalized Linear Inversion Using Tau-P Forward Modeling, Stephen Dade Walker

Graduate Theses

The Generalized Linear Inversion (GLI) method is used in conjunction with a tau-p forward model to successfully perform inversions of test and real-data examples. All data examples used are one-dimensional velocity profiles that represent several different cases. The stability of the technique is demonstrated in all the test-data sets. The use of simple models and wel1-control 1ed test data results in a minimum of iterations of the inversion process. Different levels of perturbation of the model and test-data examples are used to reveal insight into the robust nature of the inversion.

Theoretical Thermodynamic Properties Of Low Temperature Fluids, Zul Azhar Zahid Jamal

Masters Theses

The thermodynamic functions for low temperature fluids are computed using parametric integral equations and perturbation theory. Parametric integral equation N is applied to a low temperature Lennard-Jones gas. It is found that there is no significant improvement over the better known parametric integral equation C. The two parameter integral equation T is applied to a low temperature square-well potential and is found to be unsatisfactory at reduced temperatures of T*= 1.4 and 1.6, but quite accurate at T* = 2.2. The equation T results for T* = 2.2 are used as the reference system in perturbation theory computations. Tables of …

University Of Missouri-Rolla Cloud Simulation Facility: Proto Ii Chamber, Daniel R. White, James L. Kassner, John C. Carstens, Donald E. Hagen, John L. Schmitt, Darryl J. Alofs, Alfred R. Hopkins, Max B. Trueblood, Max W. Alcorn, William L. Walker

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The Graduate Center for Cloud Physics Research at UMR Has Developed a Cloud Simulation Facility to Study Phenomena Occurring in Terrestrial Clouds and Fogs. the Facility Consists of a Pair of Precision Cooled-Wall Expansion Chambers Along with Extensive Supporting Equipment. the Smaller of These Chambers, Described in This Article, is Fully Operational, and is Capable of Simulating a Broad Range of In-Cloud Thermodynamic Conditions. It is Currently Being Used to Study Water Drop Growth and Evaporation for Drops Nucleated (Activated) on Well-Characterized Aerosol Particles. Measurements Have Been Made Not Only for Continuous Expansions (Simulated Updraft) But Also for Cyclic Conditions, …

An Evaluation Of The Effectiveness Of Adaptive Histogram Equalization For Contrast Enhancement, John B. Zimmerman, Stephen M. Pizer, Edward V. Staab, J. Randolph Perry, William Mccartney, Bradley C. Brenton

All Computer Science and Engineering Research

Adaptive Histogram Equalization (AHE), a method of contrast enhancement which is sensitive to local spatial information in an image, has been proposed as a solution to the problem of the inability of ordinary display devices to depict the full dynamic intensity range in some medical images. This method is automatic, reproducible, and simultaneously displays most of the information contained in the grey-scale contrast of the image. However, it has not been known whether the use of AHE causes the loss of diagnostic information relative to the commonly-used method intensity windowing. In the current work, AHE and intensity windowing are compared …

Load And Communications Balancing On Multiprocessor Logic Simulation Engines, Ken Wong, Mark A. Franklin

All Computer Science and Engineering Research

The problem considered in this paper is to find an assignment of logic components to processors which will achieve logic simulation speed-ups approaching the ideal for large processor populations. This problem becomes particularly important when a significant portion of the speed-up expected from logic simulation engines is attributed to load sharing (as opposed to obtaining speed-up by employing specialized hardware to carry out specific tasks associated with the simulation process such as event queue manipulation or function evaluation). Our research considers this problem for a particular multiprocessor simulation architecture for which a performance model has bene developed. The model is …

Santa Clara Magazine, Volume 30 Number 1, Fall 1987, Santa Clara University

Santa Clara Magazine

10 - CAN THERE BE DISSENT IN CATHOLIC UNIVERSITIES? SCU's president makes clear where the University stands on this important issue. By William J. Rewak, S.J.

17 - WHAT'S AHEAD IN THE WORLD OF HIGH TECH? Former Business ~ek reporter Jack Wilson looks to the future of Silicon Valley.

21 - GREEKS ON CAMPUS-HERE TO STAY? What makes sororities and fraternities appealing to SCU undergraduates?

28 - GLASS IMAGE Tom Kelly '72 unlocks memories of classmate Charlie Glass after Glass's abduction last June.

30 - THE AGE OF AQUARIUS REVISITED Six members of the class of '67 talk about their …

A Study Of Flow Separation In Transonic Flow Using Inviscid And Viscous Cfd Schemes, James Andrew Rhodes

Mechanical & Aerospace Engineering Theses & Dissertations

A comparison of flow separation in transonic flows is made using various computational schemes which solve the Euler and the Navier-Stokes equations of fluid mechanics. The flows examined are computed using several simple two-dimensional configurations including a backward facing step and a bump in a channel. Comparison of the results obtained using shock fitting and flux vector splitting methods are presented and the results obtained using the Euler codes are compared to results on the same configurations using a code which solves the Navier-Stokes equations.

Model Of Hot-Film Sensor With Substrate Effects, David Mcalpine Judge

Electrical & Computer Engineering Theses & Dissertations

A detailed mathematical model is constructed to investigate the frequency response of a hot-film anemometer system. Since several diverse factors affect the frequency response, the analysis is broken down into three main parts. Each part is a detailed mathematical model. The first model consists of the ordinary differential equations which govern the electronics of the feedback system and heat transfer of the sensor. An important simplification in this model is that the rate of heat conduction from the sensor to its substrate is constant.

In the second model the unsteady state heat transfer properties of the substrate are examined by …

An Application Of Global Optimization Algorithm For Modal Parameter Identification, Chung-Men Chen

Mechanical & Aerospace Engineering Theses & Dissertations

Single-mode projection filters for modal parameter identification for flexible structures are introduced. An effective two-dimensional global optimization method using interval analysis is combined with the projection filters to facilitate identification for modal frequency and damping. A numerical simulation of a ten-mode structure is presented to illustrate the feasibility of the new method. The projection filters are practical for parallel processing implementation.

The Effects Of A Mandatory Early Shutdown Of Maine Yankee, Maine State Planning Office

Maine Collection

The Effects of a Mandatory Early Shutdown of Maine Yankee

Maine State Planning Office - Richard Silkman, Director (September 1987).

Contents: Introduction / Legal Issues / Economic Issues / Health and Environmental Issues / Conclusions / Appendices

Transaction Network: A Parallel Computation Model Based On Consume/Produce Paradigm, Takayuki Dan Kimura

All Computer Science and Engineering Research

This report introduces a new parallel computation model that is suitable for pursuit of large scale concurrency. Our goal is to develop a semantically clean paradigm for distributed computation with fine-grained parallelism. Our approach is to demote the notion of process as the key concept in organizing large scale parallel computation. We promote, instead, the notion of transaction, an anonymous atomic action void of internal state, as the basic element of computation. We propose to organize a computation as a network, called a transaction net, of databases connected by transactions. A transaction, when it is fired, consumes data objects from …

Advanced Communications Systems, Jonathan S. Turner

All Computer Science and Engineering Research

The Advanced Communication Systems Project is concerned with new communication technologies that can support a wide range of different communication applications in the context of large public networks. Communications networks in common use today have been tailored to specific applications and while they perform their assigned functions well, they are difficult to adapt to new uses. There currently are no general purpose networks, rather there are telephone networks, low-speed data networks and cable television networks. As new communications applications proliferate, it becomes clear that in the long term, a more flexible communications infrastructure will be needed. The Integrated Services Digital …

29th Rocky Mountain Conference

Rocky Mountain Conference on Magnetic Resonance

Program and abstracts from the 29th annual meeting of the Rocky Mountain Conference, co-sponsored by the Rocky Mountain Section of the Society for Applied Spectroscopy and the Rocky Mountain Chromatography Discussion Group. Held in Denver, Colorado, August 2-6, 1987.

Santa Clara Magazine, Volume 29 Number 4, Summer 1987, Santa Clara University

Santa Clara Magazine

10 - ALASKA DIARY From the journal Bill Regan kept on his 1931 expedition to Alaska with Father Hubbard. By William V. Regan. Edited by Peg Major

18 - THE U.S. AND THE VATICAN An excerpt from Eric Hanson's new book sets the stage for the pope's September visit. By Eric O. Hanson

21 - MR. ESPY GOES TO WASHINGTON Mike Espy '78 (JD) is Mississippi's first black congressman since Reconstruction. By Carla Hall

24 - BURIED TREASURE For every child God gave them, Kathy and Allen Hayes '66 promised to adopt another. By Allen and Kathy Triplett Hayes '66

Software Tools For Performance Evaluation Of Concurrent Processing, Rodrogo A. Obando

Electrical & Computer Engineering Theses & Dissertations

The development and use of software tools for performance evaluation of concurrent processing is presented in this thesis. The particular concurrent processing architecture proposed by Stoughton and Mielke is investigated. The modelling of this architecture is based on Petri net theory and it can be studied making use of circuit theory. Computation of lower bounds for Time Between Outputs (TBO) and Time Between Input and Output (TBIO) can be accomplished by using principles of circuit theory, among others. This new modelling needs to be deeply evaluated and studied. This evaluation and study is accomplished with the tools developed and presented …

Integrating Water Quality Objectives With Traditional Water Rights In California: The Sacramento–San Joaquin Delta Case, Ronald B. Robie

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

14 pages (includes 1 map).

The Homestake Project & Water Quality Issues, Tad Foster

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

5 pages (includes 1 map).

Conflicts Between Water Rights Administration And Water Quality Protection, Jan D. Laitos

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

43 pages.

Reconciling Large-Scale Water Development And Water Quality Effects, James S. Sanderson

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

6 pages.

Wetlands Protection: The 404 Program, Patrick A. Parenteau

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

13 pages.

Includes unsigned annotations by David Getches.

The Clean Water Act, Water Quality, And Water Use, Bruce D. Ray

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

56 pages.

Includes unsigned annotations by David Getches.

Public Interest Review Of Water Right Allocation And Transfer In The West: Recognition Of Public Values, Douglas L. Grant

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

37 pages.

Contains references.

New Developments In Water Rights On Public Lands: Federal Rights And State Interests, Christopher H. Meyer

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

25 pages.

Contains footnotes and 2 pages of references.

State Water Planning To Protect Public Needs, David H. Getches

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

44 pages.

Nurturing Public Values In The Water Resource—The Montana Way, Matthew W. Williams

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

21 pages.

Contains references.

Emerging Policy And Strategy Choices For Protection Of The Groundwater Resource, Richard H. Braun

Water as a Public Resource: Emerging Rights and Obligations (Summer Conference, June 1-3)

22 pages.

Contains 2 pages of references.