Engineering Commons^™

Evaluation Of Safety At Railroad Highway Grade Crossing, Thomas Gordon Schultz

JTRP Technical Reports

No abstract provided.

Estimating Axle Loadings On State Highways In Indiana : Technical Paper, Roy Hilton Larson, William Louise Grecco

JTRP Technical Reports

No abstract provided.

Measurement Of The Dynamic Tire Forces Of A Large Truck, Gary Willard Kibbee

JTRP Technical Reports

No abstract provided.

Airphoto Interpretation Of Engineering Soils Of Interstate Route I-64 Between Scalesville And New Albany In Warrick, Spencer, Dubois, Perry, Crawford, Harrison And Floyd Counties, Indiana : Progress Report, P. T. Yeh

JTRP Technical Reports

No abstract provided.

An Experimental Analysis Of Transient Vehicle Loads And Response Of Flexible Pavements, John Leonard Sanborn

JTRP Technical Reports

No abstract provided.

Formulation Of A Technique For Evaluating Urban Highway Needs, Ronald G. Rude

JTRP Technical Reports

No abstract provided.

Optimization Model For Maintenance Of Traffic Signals, Thorold G. Smith

JTRP Technical Reports

No abstract provided.

Test 877: Ford Commander 6000 (Gasoline), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 896: Massey-Ferguson Mf 165 (Diesel) (Also Mf 165 8-Speed Diesel), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 899: Massey-Ferguson Mf 135 (Gasoline), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Problems Encountered In Using Elevation Power Spectra As A Criteria Of Pavement Condition : Information Report, Bayard Elmer Quinn

JTRP Technical Reports

No abstract provided.

An Analysis Of Traffic Accidents On A High-Volume Highway : Progress Report, Arvid O. Peterson

JTRP Technical Reports

No abstract provided.

Models For Trip Prediction Developed From Fourteen Urban Areas : Technical Paper, James James Schuster, Harold L. Michael

JTRP Technical Reports

No abstract provided.

An Analysis Of Travel Conditions On The U.S. 52 Bypass In Lafayette, Indiana, Theodore B. Treadway, Joseph C. Oppenlander

JTRP Technical Reports

No abstract provided.

Current Highway Research At Purdue: The Joint Highway Research Project : Technical Paper, Harold L. Michael

JTRP Technical Reports

No abstract provided.

The Thermodynamics Of The Zno-Fe₂O₃-Fe₃O₄ System, Robert Lee Benner

Doctoral Dissertations

"The purpose of this investigation was to (1) experimentally locate certain phase boundaries in three isothermal sections of the zinc oxide - ferric oxide - magnetite phase diagram, (2) to experimentally determine some of the thermodynamic properties of the zinc oxide - ferric oxide - magnetite system, (3) to use the thermodynamic properties of the zinc oxide - ferric oxide - magnetite system to evaluate the pseudo-binary system between zinc ferrite and magnetite, (4) to construct a compound stability diagram for the zinc-iron-oxygen-sulfer system"--Introduction, Statement of the Problem, page [1].

Drag Reduction In Newtonian Polymer Solutions, Harry C. Hershey

Doctoral Dissertations

"Prior work in the area of drag reduction has been mainly limited to aqueous solutions. Theoretical and empirical analyses of the resulting data in aqueous solutions have been hindered by the fact that some polymers cause drag reduction and others do not...This investigation was directed to the study of how the size and configuration of the polymer molecule in solution affected drag reduction and the related phenomenon of turbulence suppression. Apparatuses were designed and built to measure viscometric flow, curves, friction factors, velocity profiles, and normal stresses (by a jet thrust technique developed by Metzner and associates)"--Summary, page 1-2.

Internal Friction Of Mixed-Alkali Silicate Glasses, James E. Shelby

Doctoral Dissertations

"The mixed alkali effect in silicate glasses was examined from internal friction measurements made over the temperature range from -190 to 500⁰C and at a frequency of 0.4 Hz. Supplemental measurements of the activation energy for the different internal friction peaks, dynamic shear modulus, density, and index of refraction were also made. All measurements were confined to silicate glasses containing mixtures of Li-Na, Li-K, Li-Rb, Li-Cs, Na-K, Na-Rb, Na-Cs, and K-Rb. Rötger's interpretation of the internal friction of mixed-alkali silicate glasses is shown to be incorrect. A previously unreported internal friction peak was observed whenever two different alkali oxides were …

The Microbial Hydrolysis Of Cellulose And Some Factors Affecting The Production Of Cellulase In A Submerged Culture Of Alternaria Sp, Robert Murray Logan

Doctoral Dissertations

"A mile hydrolyzing procedure was utilized to degrade oak sawdust. Its capability of producing a suitable fermentatation [sic] medium was studied. In the interest of solubilizing, enzymatically, the carbohydrate portion of oak sawdust, an investigation was conducted in which various microorganisms were examined for their ability to utilize different forms of cellulose for their growth and to produce cellulose decomposing enzymes. The microorganisms included a myxobacterium, several fungi, and a wood-rotting basidiomycete. The fungi included two highly cellulolytic organisms, Myrothecium verrucaria and Trichoderma viride. The myxobacterium used was Sorangium cellulosum and the basidiomycete was Pleurotus ostreatus. The principla substrates employed …

An Evaluation Of Demonstrations On Inductor Theory, Boyd Warner Wasson

Dissertations and Theses @ UNI

The writer sought an improved approach for teaching theory of electronics to high school students. This approach was intended to require less expense and time needed to provide classroom instruction on electrical theory.

The purpose of this study were to:

(1) Prepare a number of demonstrations to illustrate phenomena associated with coils or inductors and their use in practical electronics.

(2) Prepare equipment and gather parts needed to perform demonstrations. Ease of construction and economy were important considerations.

(3) Evaluate the effectiveness of the demonstrations on student comprehension and the ability to apply information taught.

A Study Of The Work Functions Of Nigerian Industrial Technicians, Olugbenro A. Ajayi

Masters Theses

The Problem and Its Background

Introduction

A curriculum can be developed in several ways. The simplest method is to use the curriculum of another institution without modification. The hazard of such an approach lies in the possibility that the curriculum may not be a good one or, even if satisfactory for the original institution, may not fit into the conditions of the setting where it is to be used. For example, entrance requirements for institutions vary from country to country and from one institution to another.

Another method is to study a number of curriculums and develop a composite curriculum …

Equipment And Techniques For Aerial Application Of Evaporation-Reducing Monlayer-Forming Materials To Lakes And Reservoirs, Vaughn E. Hansen, Gaylord V. Skogerboe

Reports

The authors wish to express their gratitude and sincere appreciation to the many organizations and individual who assisted in this research effort. The U. S. Bureau of Reclamation has sponsored the investigation of aerial application equipment and techniques. U.S. Bureau of Reclamation personnel concerned with the evaporation reduction research program have b en most cooperative in supporting the efforts at Utah State University. The Reeder Flying Service has worked with Utah State University in the developn1 pilot of aerial application equipment since the inception of the project in 1961. Mr. Charles Reeder ha been very cooperative throughout the research program. …

The Irish Plumbing And Heating Engineer, December 1964 (Complete Issue)

Building Services Engineering

No abstract provided.

Transient Gamma Radiation Effects On Resistors, Harold T. Cates

Electrical and Computer Engineering ETDs

If a resistor in a circuit is exposed to a transient gamma radiation pulse, the condition of the circuit will be modified by passing from its steady state condition before radiation to a state of excitation that will depend upon the intensity and duration of the radiation pulse. When the radiation pulse is over, the circuit will then relax to its previous condition of equilibrium within a characteristic time constant.

When energetic radiation, such as gamma radiation, charged particles, or neutrons, strikes matter, it causes several effects which alter the properties of the target material. Some of the effects that …

Stresses In Thick Slabs Subjected To Thermal Loadings., Robert I. Brasier

Mechanical Engineering ETDs

The use of thick, reinforced concrete components in nuclear reactor constructions where they serve as both structural and shielding components has become commonplace. In use, the concrete ls subjected to mechanical loads due to the weight of various reactor components and thermal loads due to tempera­ture gradients and internal heating due to absorbed radiation. Since these components are required to maintain their structural integrity for long period of time under fluctuating temperature gradients their stress analysis is a vital problem. Typical components range from thick slab shields to complete reinforced con­crete pressure vessels. It is felt that current criteria for …

Antennas In Or At The Surface Of A Conducting Medium At Vlf, George R. Swain

Electrical and Computer Engineering ETDs

To meet the requirements of a number of military operations and to facilitate some types of geophysical exploration, it is necessary to communicate between points beneath or at the surface of the earth or of the ocean. This need has led to the investigation of antennas for use in or at the surface of conducting media. The purpose of this paper is to briefly survey the previous work on such antennas, to extend the concepts of effective length and other merit factors to antennas in or near a conducting medium, and to analyze the electrical behavior of the toroid and …

Experimental Feature, Construction Project F 160(10), U.S. 127, Mercer County, Experimental Guardrail Installations And Performance Studies, James H. Havens

Kentucky Transportation Center Research Report

The report submitted herewith pertains to an experimental installation of aluminum guardrails which was completed in February, 1963. Progress reports, as required by PPM's 60-2 and 50-1.1, have been pending since the project began; however, all of the eligible information has been combined into the current report. Of course, long-time performance histories cannot yet be documented; and, for that reason, the report is considered to be interim rather than final.

Camber Design Study For Concrete Pipe Culvert, Robert C. Deen

Kentucky Transportation Center Research Report

When a pipe culvert is constructed on or near the natural ground surface and covered by a highway fill or embankment, the weight of the embankment compresses and consolidates the foundation soil, settlement occurs, and the culvert subsides and sags below the original grade line. Experience has shown that culverts which become clogged with silt and debris, become disjointed and faulted, leak, become undermined, and endanger the stability of the embankment. These and other damages attendant to settlement restrict the flow of water, prevent adequate inspection of the structure, and may eventually require extensive maintenance or complete replacement of the …

Use Of Kentucky Rock Asphalt For De-Slicking Purposes, James H. Havens

Kentucky Transportation Center Research Report

According to Joe Creason's report appearing in the Courier-Journal June 23, 1957 (copy attached), the Kentucky Rock Asphalt Company elected, June 14, 1957, to liquidate. Among the assets was a stockpile of material which was valued at $197,000 (I recall that the stated price, F.O.B. Sweden, in 1955 was $7.00 per ton); this calculates to be 28,140 tons-- which is a small quantity in comparison to the gross production (200,000 to 275,000 tons; $1.2 to $1.75 million) during some prior years. Apparently 1956 was the last year of sales, and I believe that Kentucky was the sole purchaser. Perhaps as …

The Irish Plumbing And Heating Engineer, November 1964 (Complete Issue)

Building Services Engineering

No abstract provided.