Engineering Commons^™

Test 1563: Hesston 80-90 Fiat Diesel 12-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 1564: Hesston 130-90dt And 130-90 Turbo Diesel 16-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 …

Acuta Enews May 1985, Vol. 14, No. 5

ACUTA Newsletters

In This Issue

Bell Atlantic Boasts: 1st With Centrex Data

Party Line

Personal Affairs

Phone Phreaks

Measuring R And D Productivity, Richard A. Pappas, Donald S. Remer

All HMC Faculty Publications and Research

Measuring the productivity of an R&D organization is extremely tricky. Productivity is usually defined as a ratio of an output, like number of cars produced on an assembly line, to an input, like the wages paid the workers. While R&D may have a measurable input, the output is often intangible and difficult to quantify. This is further complicated because the return from an R&D department may not be realized for one or two decades,which means the time lag is much higher than in factory measurements. Furthermore, many researchers believe that this kind of measurement may be counterproductive,since the mere act …

Effects Of Load Distributions And Axle And Tire Configurations On Pavement Fatigue, Herbert F. Southgate, Robert C. Deen

Kentucky Transportation Center Research Report

Damage factor relationships for axle and tire configurations are presented. Adjustment factors are provided to account for variations in load distributions within axle groups, distances between axles of a tandem, and variations in tire pressure for both dual and flotation tire configurations.

Properly accounting for accumulated fatigue of a pavement requires an accurate Measure of traffic volume, proportions of vehicle styles (classifications) within the traffic stream, dates of service, estimate of the average damage factor for each classification, and estimate of the tire contact pressure. Weigh-in-motion equipment in its current form provides all of the above ingredients except for the …

Feasibility Of Computerization Of The Bid Item Section Of Bid Proposals, Jesse G. Mayes, Mark Isenhour

Kentucky Transportation Center Research Report

The feasibility of computerizing the bid item listing in bid proposals has been studied. As a result, a system of computer programsfor the IBM PC microcomputer has been written and submitted to the Division of Contract Procurement, Kentucky Department of Highways, for implementation. This software is menu driven and provides the capability of building and maintaining a bid item code file and interactively building a bid sheet file for producing blank bid sheets as well as a bid estimate. Additionally, a restricted version of this program has been provided to allow the contractor to produce a computerized bid proposal.

Test 1561: Hesston 70-66dt And 70-66 Fiat Diesel 12-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 …

Collecting Data About Logic Simulation, Roger D. Chamberlain, Mark A. Franklin

All Computer Science and Engineering Research

Design of high performance hardware and software based gate-switch level logic simulators requires knowledge about the logic simulation process itself. Unfortunately, little data is publically available concerning key aspects of this process. An example of this is the lack of published empirical measurements relating to the time distribution of events generated by such simulators. This paper presents a gate-switch level logic simulator lsim which is oriented towards the collection of data about the simulation process. The basic components of lsim are reviewed, and its relevant data gathering facilities are discussed. An example is presented which illustrates the use of lsim …

Effectiveness Of Traffic Noise Barrier On I 471 In Campbell County, Kentucky, Tom Creasey, Kenneth R. Agent

Kentucky Transportation Center Research Report

The objective of this study was to evaluate the effectiveness of the traffic noise barrier on I 471 in Campbell County, Kentucky. Since the barrier coincided with construction of I 471, it was necessary to predict noise levels that would exist if no barrier were present utilizing the FHWA STAMINA 2.0 computer model. This was compared to actual noise level measurements at the barrier site to determine the barrier insertion loss.

After calibration of the STAMINA 2.0 model, noise measurements were conducted at 39 receiver locations during off-peak and peak traffic conditions. The noise barrier reduced the noise level reaching …

Deformation And Fracture Of Some Aluminium-Magnesium Alloys Under Impact Compressive Loading, Mohamed Ibrahim Hamed

Archived Theses and Dissertations

No abstract provided.

Ion-Exchange And Surface Properties Of Titania Gels From Ti (111) Chloride Solutions, Suzan I Khairy Seleem

Archived Theses and Dissertations

No abstract provided.

Summary Report Of Ranking Methodologies, Robert C. Deen

Kentucky Transportation Center Research Report

Participants in the ranking methodologies workshops were a good representation of those various actors (types of agencies or organizations) in the pavement management process. There were nineteen participants, nine of whom were from the United States, six from Canada, and four from European countries. Of the nineteen, eight represented state or provincial governmental units, three represented municipalities, four were employees of national highway agencies, and another four were either consultants or representatives of universities. Unfortunately, however, all participants represented the technical levels involved in pavement ranking. No one was present to provide the viewpoint of the ultimate decision makers -- …

A Study In Pervaporation Of Ethanol/Water Mixtures And Its Applications To Membrane-Aided Distillation, Mikel E. Goldblatt

All Theses

No abstract provided.

Slow Rate Sand Filtration With And Without Clinoptilolite: A Comparison Of Water Quality And Filtration Economics, Gordon P. Foreman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Slow rate sand filtration (SSF) amended with a 20 cm surface layer of clinoptilolite, a natural zeolite, was compared to SSF with no amendment in a field scale SSF facility treating 85 m³/d of water. Parameters examined included turbidity, coliforms, and ammonium removal. The control filter with sand and the experimental filter amended with the zeolite were also compared with respect to duration of filter cycle, cold weather operation, and economics.

Amended and unamended filters were approximately equivalent with respect to ammonium and coliform removal at 10° C. The zeolite amended cell was superior to the unamended cell …

Uplift Capacity Of Rigid Pile In Clay Under Inclined Load, Godwin Ikechukwu Ubanyionwu

Open Access Theses & Dissertations

This thesis investigates the uplift capacity of rigid vertical piles embedded in saturated or near-saturated clayey soils subjected to inclined uplifting loads. Pile foundations are widely used in civil engineering applications requiring resistance to both axial and lateral forces, including transmission tower foundations, foundations on expansive soils, and mat foundations in areas subject to rising groundwater tables. While considerable research had addressed compressive load bearing capacity and lateral resistance of piles, experimental data on pile behavior under inclined uplift loading remained scarce at the time of this study. The present study was undertaken to conduct a systematic series of laboratory …

Design And Field Layout Of Irrigation Flow Measuring Devices In The River-Lab At Utah State University, Abelardo M. Arriaran

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

The purpose of this report was to develop a design and field layout of irrigation flow measuring devices in a design channel in teh River-Laboratory at Utah State University. This study was conducted considering a maximum discharge of 3.5 cfs and the profile of the channel in the selected area. Four kinds of flow measuring devices to be installed in series one after another were considered: a Parshall flume, a broad-creasted weir, a cutthroat flume, and the rectangular sharp-crested weir. The locations given are based on the hydraulic conditions for each device, the available head, the head loss that each …

Cavitation Limits And The Effect Of Aeration On Cone Valves, Bart "L" Mumford

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Cavitation in cone valves can cause eventual valve failure. However, little data are available on cavitation limits for solid plug cone valves. Flow conditions were identified for a 6 inch cone valve where incipient, critical, incipient damage, and choking cavitation limits occurred at valve openings between 20 and 70 degrees. A description of how these limits are used to predict cavitation intensity is given. Air was used to reduce the damage levels. Aeration increased the allowable pressure drop for damage free operation 6 to 72 percent for valve openings less than 70 degrees. A chart is given for predicting when …

Calibration Of A Temperature-Radiation Evapotranspiration Equation For Utah, Payam Foroughi

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Two reference crop evapotranspiration (ETr) equations were calibrated to the reference crop of alfalfa using 45 meteorological datafiles from 13 scattered sites in Utah and four sites in the neigboring states of Idaho and Wyoming.

The calibrations were done against the Kimberly version of the Penman ETr formula. The first equation required measured inputs of mean air temperature and solar radiation. It was referred to as the Temperature- Radiation ETr equation (ETr= CT x T x Rs). The second equation required measured inputs of mean minimum and mean maximum air temperatures. It was referred to as the New Hargreaves equation …

Effect Of Rules And Laws On The Sustained Availability Of Groundwater, Richard C. Peralta, Paul Killian, Keyvan Asghari

Civil and Environmental Engineering Faculty Publications

No abstract provided.

Irish H & V News

Building Services Engineering

No abstract provided.

Determining Process Latitude With Electrically Measurable Test Structures, Jonathan Littlehale

Theses

Collection of linewidth data is an important part of photoresist characterization. Linewidth data are usually collected by optical measurements or scanning electron microscopy. Both of these techniques are tedious and time-consuming. In this work, electrically measurable test structures are used to collect linewidth data. These structures use a measured sheet resistance, a known length of conducting material, and the measured resistance of the structure to determine the linewidth. The benefits of using these structures include completely automated data collection and the ability to collect statistically significant amounts of data. This allows the use of existing statistical analysis software to analyze …

Test 1560: Hesston 55-66 Fiat Diesel 12-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 1559: White Farm Equipment 4-270 Diesel 16-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 …

Constraint On The Optical Constants Of A Film-Substrate System For Operation As An External-Reflection Retarder At A Given Angle Of Incidence, R. M.A. Azzam, Bruce E. Perilloux

Electrical Engineering Faculty Publications

Given a transparent film of refractive index n₁ on an absorbing substrate of complex refractive indexn₂-jk₂, we examine the constraint on n₁, n₂, and k₂ such that the film-substrate system acts as an external-reflection retarder of specified retardance Δ at a specified angle of incidence φ. The constraint, which takes the form ƒ(n₁,n₂,k₂;φ,Δ) = 0, is portrayed graphically by equi-n₁ contours in the n₂,k₂ plane at φ = 45, 70° and for Δ …

Test 1558: White Farm Equipment 4-225 Diesel 18-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 …

Method And Apparatus For Harvesting Tobacco, George A. Duncan

Biosystems and Agricultural Engineering Faculty Patents

A support beam is formed of two wooden members held in spaced relation to each other by spaced blocks to provide openings to receive tobacco sticks with tobacco stalks thereon. Each end of the support beam has a longitudinal slot extending therethrough to enable a cable, which is attached to a rafter in the upper end of the barn, to extend therethrough. The lower end of each cable has a loop for attachment to a drum of a hoist mechanism, which has a portion bearing against the bottom surface of the support beam. The support beam has a depending projection …

An Analysis Of The Heating And Densification Process During Rotational Molding Of A Thermoplastic Powder In A Uniaxially Rotating Cylindrical Cavity, Floyd Steven Ribe

Dissertations

This dissertation presents the results of an experimental and theoretical investigation of the heating and densification portion of the rotational molding process in a uniaxial, cylindrical mold.

A thorough literature survey is included which reviewed past analysis of the rotational molding process and other areas that assisted in understanding of the process.

The results presented in this dissertation included an analysis of the densification process by use of Scanning Electronic Microscope (SEM) photography producing intermediate correlations between the physical properties of the densifying material and neck radius of adjacent coalescing spheres. In addition, a hybrid experimental procedure coupled with a …

Acuta Enews April 1985, Vol. 14, No. 4

ACUTA Newsletters

In This Issue

Party Line

Pay-As-You-Talk? Fad or Fortune?

Potpourri

Telephone System at The University of Oklahoma

AT&T Private-Line Tariffs Said to Offer Options, Risk

Center For Computer And Information Sciences Master Of Science In Computer Information Systems Spring Courses 1985, Nova Southeastern University

College of Engineering and Computing Course Catalogs

No abstract provided.

Rivest-Shamir-Adelman Cryptosystem, Edward A. Fetzner

Theses & Honors Papers

Cryptography, the art of writing secret messages, has been practiced for almost 3000 years. Two people have a message to communicate to each other , with a chance of an outside person intercepting the message before it reaches the receiver . Therefore, the message must be put through an encryption scheme to keep the intervening person from finding the true nature of the message . An encryption scheme is coding a message using an enciphering key and then decoding the coded message with a deciphering key .