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Test 1460: John Deere 4650 Powershift Diesel 15-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

Test 1461: John Deere 4850 Powershift Diesel 15-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

Inversion To Obtain Aerosol Size Distributions From Measurements With A Differential Mobility Analyzer, Darryl J. Alofs, P. Balakumar

Mechanical and Aerospace Engineering Faculty Research & Creative Works

To Measure Size Distributions of Sub micrometer Aerosols with an Electrical Differential Mobility Analyzer (DMA) Requires an Inversion Procedure. the Knutson (1976) and the Hoppel (1978) Inversion Procedures Were Numerically Investigated for the Case of Log-Normal Aerosol Size Distributions. It Was Found that the Hoppel Procedure Converges to the Same Result as that Given by the Knutson Procedure. the Computational Range for Geometric Mean Diameter (Χ_g) Was 0.025-0.25 Μm, and for Geometric Standard Deviation (Σ_g) Was 1.1-2.4. the Inversion Error Was Found to Be Greater Than 10% in Certain "Forbidden Zones" of Χ_g and Σ …

Phaseautomodulation In Magnesium, Alexander Aning, Tetsuro Suzuki, Manfred Wuttig

Physics Faculty Research & Creative Works

No abstract provided.

Imers: An Interactive Medical Records System, Mary A. Garner

Retrospective Theses and Dissertations

As computer printouts replace handwritten and typewritten information in a Medical Records department, it becomes more advantageous for the Registered Records Administrator (RRA) to learn how to interact with a computer terminal. Computer applications in the Medical Records field increase the availability and accessibility of patient information. The Medical Records System discussed in this paper has been adapted by the Medical Records department of the College of Health Sciences of the University of Central Florida as a tool for demonstrating the relationship between the computer and the successful management of medical records. This system will provide hands on experience to …

Simulation Of Burley Tobacco Harvesting-Housing Systems, Ronald L. Bingner, Larry G. Wells, Thomas C. Bridges, George A. Duncan

Biosystems and Agricultural Engineering Faculty Publications

A computer model has been developed using systems analysis techniques to simulate the labor and equipment aspects of harvesting burley tobacco. By varying the parameters of the model the user can determine a harvesting and housing strategy based on labor and equipment availability.

Sequential Probability Ratio Tests For The Shape Parameter Of A Nonhomogeneous Poisson Process, Lee J. Bain, Max Engelhardt

Mathematics and Statistics Faculty Research & Creative Works

Sequential probability ratio tests for the shape parameter of one or more nonhomogeneous Poisson processes, with power intensity functions, are provided. The tests can be performed when the scale parameter is an unknown nuisance parameter; the effective loss of not knowing the scale parameter is one observation per process. The resulting tests can be expressed in terms of the maximum likelihood estimators of the shape parameters for the usual fixed sample procedure. A further advantage of the present approach is that the scale parameters for different processes, in the multiple sample procedures, need not be equal. Approximations for the operating …

Polymer Treatment Of Non-Durable Aggregates, Douglas Windslow, William Lee Dolch

JTRP Technical Reports

No abstract provided.

Techniques To Increase Survival Of New Highway Plantings (Seeding Portion), Philip L. Carpenter, John B. Masiunas

JTRP Technical Reports

No abstract provided.

Chemical Mowing: A New Maintenance Concept For Indiana Roadsides : Final Summary Report, D. James Morré

JTRP Technical Reports

No abstract provided.

Micro-Scale Hydropower For The Eighties, E. Beatriz Caicedo-Maddison

Retrospective Theses and Dissertations

The objectives of this project are to show the feasibility of micro-hydropower and to provide adequate engineering data for those people who wish to design their own micro system. Nine case studies are reviewed and analyzed in an attempt to determine general design parameters. Comparative data for these studies comes from preliminary permit applications submitted to the Federal Energy Regulatory Commission. Information on such topics as flow measurements, heads, generators and turbine technology are presented. Duration curves are explained with examples using data from a river found in Colombia, South America. Finally, a preliminary design of a micro-hydro facility is …

Theoretical Modeling For Detectivity And Resolution Comparison Of Single Aperture And Multiple Aperture Optical Imaging Systems, Steven C. Kellogg

Retrospective Theses and Dissertations

The detectivity and resolution of single aperture and multiple aperture optical imaging systems are compared for single point sources in optically background limited environments. The single aperture system assumes a single large diameter lens with a detector array at the focal plane. The multiple aperture system assumes an independent detector array at the focal plane of each of the apertures of the multiaperture system. The multiaperture lenses are arranged in a rectangularly symmetric pattern within the perimeter that a single large aperture would occupy.

Due to the presence of a constant signal plus an optical noise field whose amplitude is …

Personal Computer Simulation Program For Step Motor Drive Systems, William M. Koos

Retrospective Theses and Dissertations

A system of equations modeling a class of step motors known as the permanent magnet rotor step motor is presented. The model is implemented on a APPLE personal computer in a version of BASIC. Measurements are then made on an existing motor and input to the program for validation. A special test fixture is utilized to take performance data on the motor to facilitate comparisons with the predictions of the program. The comparisons show the model is indeed valid for design of step motor drive systems and emphasize the practical nature of using personal computers and simulations for design.

Computer Aided Filter Design Using Intel Spas20 Software, Robert L. Olive

Retrospective Theses and Dissertations

This paper demonstrates conversion of an analog filter into a digital filter using computer aided software. The filter design to be demonstrated is a common third order Butterworth filter. This paper is not an attempt to review all filter designs or applications, but rather the attempt is to give a detailed explanation of the steps required to design almost any digital filter.

No knowledge of the Intel Series 210 microcomputer development system is assumed. The appendices contain introduction to the Series 210 system.

Chapter I demonstrates the steps needed to design this filter without computer aid. Included are both analog …

Low Porosity High Strength Concrete For Highway Bridge Decks, Samuel Ebow Coleman, M. Maage, Sidney Diamond

JTRP Technical Reports

No abstract provided.

Effects Of Fertilization Practices During Nursery Production On Mycorrhizal Development By Landscape Plants Used For Highway Revegetation : Interim Report, Stephen Dunning Verkade

JTRP Technical Reports

No abstract provided.

Energy Conservation And Cost Saving Related To Highway Routine Maintenance: Data Collection And Analysis Of Fuel Consumption : Interim Report, Essam Abdel-Aziz Sharaf, Kumares C. Sinha, Eldon J. Yoder

JTRP Technical Reports

No abstract provided.

A Computer Model To Determine Location Of Stormwater Management Practices, Alan D. Zahm

Retrospective Theses and Dissertations

To optimize the placement of stormwater management systems, a Radio Shack BASIC computer program "SELECT" was written. The program selects locations for berms, detention ponds, retention ponds, and underground percolation tanks based upon minimum marginal cost (totally present value cost per pound of nutrient removed annually). Either nitrogen or phosphorus can be chosen as the selected nutrient. The selections occur until the desired percentage removal is obtained. Five output tables show the results of the selection process. The computer model was used to evaluate stormwater management locations for the Lake Tohopekaliga watershed in Florida. Input data consisting of soil types, …

Electrical And Structural Properties Of P-N Junctions In Cw Laser Annealed Silicon, M. Maier, D. Bimberg, G. Fernholz, H. Baumgart, F. Phillipp

Electrical & Computer Engineering Faculty Publications

Depth profiles of the electrical quality of ion implanted and cw laser annealed p-n junctions in silicon are obtained for the first time by secondary ion mass spectroscopy. A comparison with the crystallographic properties of the surface and the junction as observed by Nomarski optical microscopy as well as cross-sectional and plan view transmission electron microscopy is made. Samples containing slip dislocations show better insulation and a lower reverse bias current across the p-n junction as compared to samples with a perfect surface in agreement with current-voltage characteristics. Small dislocation loops located at the junction are found to degrade the …

Seeded Oscillatory Growth Of Si Over Sio² By Cw Laser Irradiation, G.K. Celler, L. E. Trimble, K.K. Ng, H.J. Leamy, H. Baumgart

Electrical & Computer Engineering Faculty Publications

Extensive seeded epitaxial growth of crystalline Si over SiO₂ was achieved by an oscillatory regrowth method applied to rectangular Si pads recessed into a thick SiO₂ film. Narrow (≃5 μm) via holes linked the pads with the bulk (100) Si substrate. Oriented single crystals propagated as far as 500 μm from the seeding area, following the long term advance of a scanned focused laser beam.

An Applied Approach To Automatic Pressure Transient Analysis., Jeffrey Allan Joseph

Masters Theses

"A generalized digital approach to pressure transient (well-test) analysis is developed. The model is rigorously applicable to flow tests (pressure drawdown or injectivity of Newtonian liquids), and to pressure buildup or falloff tests provided the f low time prior to shut-in is large compared to the total shut-in time. However, buildup or falloff data may s till be analyzed if the above conditions are not satisfied, using the principles of superposition/desuperposition.

When plotted on logarithmic coordinates, pressure transient data generally assume a characteristic shape, indicative of flow behavior. Accurate computer analysis of this data requires its representation in concise mathematical …

Sessile Drop Studies Of Gallium On Alumina, Timothy John Snyder

Masters Theses

"The liquid-vapor and solid-vapor interfacial energies of the system Ga-Al₂O₃ were determined by the sessile drop technique. The interfacial energies were found to decrease with increasing temperature and P₀₂.

A maximum liquid-vapor interfacial energy of 581 ergs/cm² was found for a clean sessile drop at 1227°C. Values for Γ₀, the excess concentration of oxygen, were calculated for both the liquid-vapor and solid-liquid interfaces. The work of adhesion between molten Ga and Al₂O₃ was found to increase with decreasing P₀₂ with a maximum of 576 ergs/cm² occurring …

The Establishment Of Prairie Species Along Roadsides : Interim Report, John B. Masiunas, Philip L. Carpenter

JTRP Technical Reports

No abstract provided.

Classification And Other Standard Tests For Shale Embankments, Michael William Oakland, C. W. Lovell

JTRP Technical Reports

No abstract provided.

Characterization Of Cold-Recycled Asphalt Mixtures : Interim Report, Mang Tia

JTRP Technical Reports

No abstract provided.

Effects Of Soil Pasteurization, Fungicide Application, And Temperature On Mycorrhizal Development And Plant Growth : Interim Report, Stephen Dunning Verkade, David Foster Hamilton

JTRP Technical Reports

No abstract provided.

Prediction Of Soil Equilibrium Water Content And Mineralogy Effect On Permeability Using Pore Size Distribution : Interim Report, Sinnadurai Prapaharan

JTRP Technical Reports

No abstract provided.

Techniques To Increase Survival Of New Highway Plantings Using Mycorrhizal Inoculation, Stephen Dunning Verkade, David Foster Hamilton

JTRP Technical Reports

No abstract provided.

Study Of Segmental Box Girder Bridge Of Turkey Run : Summary Report, David W. Floyd, Charles D. Sutton

JTRP Technical Reports

No abstract provided.

Strength Of Field Compacted Clayey Embankments : Interim Report, Yueh Liang, C. W. Lovell

JTRP Technical Reports

No abstract provided.