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Test 573: Mccormick Farmall Model 300 Lpg, Nebraska Tractor Test Lab

Nebraska Tractor Tests

This report and any related files are made available to the online through the Lester F. Larsen Tractor Test and Power Museum as resources allow. Established in 1998, this museum is located on the University of Nebraska-Lincoln East Campus. It is and appropriately housed within the walls of the historic 1920 Nebraska Tractor Test Laboratory, where the first tractor test was started on March 31st, 1920. Because the pioneer tests became worldwide standards, this location was designated as a Historic Landmark of Agricultural Engineering by the American Society of Agricultural Engineers in 1980, shortly after testing was moved to a …

Test 571: Mccormick Farmall Model 400 (Diesel), Nebraska Tractor Test Lab

Nebraska Tractor Tests

This report and any related files are made available to the online through the Lester F. Larsen Tractor Test and Power Museum as resources allow. Established in 1998, this museum is located on the University of Nebraska-Lincoln East Campus. It is and appropriately housed within the walls of the historic 1920 Nebraska Tractor Test Laboratory, where the first tractor test was started on March 31st, 1920. Because the pioneer tests became worldwide standards, this location was designated as a Historic Landmark of Agricultural Engineering by the American Society of Agricultural Engineers in 1980, shortly after testing was moved to a …

Streamflow Forecast Of Bear River At Harer, Idaho, J. M. Crook

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Accurate forecasts of stream flow produce direct benefits for the populace of a watershed which can be measured in terms of cash income. In 1946 in Deschutes and Crook counties of Oregon, the stream flow forecast based on snow surveys indicated appreciably greater than average runoff to be anticipated during the course of the subsequent irrigation season (10). Accordingly, some 6500 acres of agricultural land in the area, normally not cropped, were seeded and successfully irrigated. The cash value of crops, grown on this usually unproductive land, was estimated to be more than half a million dollars.

Conversely, when short …

Kentucky Soils: Their Origin, Distribution And Engineering Properties, Robert C. Deen

Kentucky Transportation Center Research Report

Soil is the product of the action of climate and living organisms upon parent materials, as conditioned by local relief. The length of time over which these forces are operative is of great importance in determining the properties of the final soil product. Altogether, there are five principal factors in soil formation: 1.) climate, 2.) biological activity, 3.) nature of the parent material, 4.) topography, and 5.) time.

The major differences in the soils of Kentucky result chiefly from differences in 1.) the rocks from which the parent materials were derived and 2.) the topographic position of the materials.

Test 574: International 300 Utility Lpg, Nebraska Tractor Test Lab

Nebraska Tractor Tests

This report and any related files are made available to the online through the Lester F. Larsen Tractor Test and Power Museum as resources allow. Established in 1998, this museum is located on the University of Nebraska-Lincoln East Campus. It is and appropriately housed within the walls of the historic 1920 Nebraska Tractor Test Laboratory, where the first tractor test was started on March 31st, 1920. Because the pioneer tests became worldwide standards, this location was designated as a Historic Landmark of Agricultural Engineering by the American Society of Agricultural Engineers in 1980, shortly after testing was moved to a …

The Response Of Vibration Mounts Subjected To Biharmonic Vibration, Paul H. Adams

Mechanical Engineering ETDs

Existing specifications used in vibration testing are based on envelopes of many points of fixed frequency and vibration amplitude measured at specific points in aircraft. In addition these specifications are to some extent written to be compatible with the two common types of vibration test machines, the reaction or constant-displacement type and the electromagnetic or constant-acceleration type. Thus the "envelope" of the measured vibration amplitudes is drawn in such a manner as to have a constant displacement from 3 to 60 cycles per second, the range of the reaction type of vibration test machine, and a constant acceleration from 60 …

Test 598: John Deere 620/630, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: John Deere 620/630

TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear.

This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated.

BELT HORSEPOWER TESTS

TEST …

Test 600: John Deere 420 S All-Fuel Quad-Range, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: John Deere 420 S All-Fuel

TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear.

This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated.

BELT HORSEPOWER …

Heat Transfer Coefficient Of Paint Films, Richard F. Justus

Masters Theses

"Many studies of heat transmission have been carried out on various kinds of surfaces. But relatively few investigators have studied the loss of heat from a painted surface. Any surface will lose or gain heat by one or more of the three mechanisms of heat transmission: conduction, convection, and radiation. These mechanisms are thoroughly discussed by McAdams.

Heat transmission can be analyzed by determining thermal conductivity for conduction, overall coefficient for convection, and emissivity for radiation. The resistance concept is useful in indicating the various components of the overall coefficients and in analyzing problems in thermal conduction.

In studying heat …

Investigation Of The Current Distribution On An Antenna In A Waveguide, David J. Freeman

Masters Theses

"In a communication system composed of several networks and transmission systems, it is necessary for all parts of the system to be impedance matched so that medium energy transfer is possible.

One of the recent transmission systems which has been developed is the wave guide. With the advent of the wave guide the communication engineer is immediately faced with the problem of coupling existing systems and networks to his newly found mode of transmission.

Practically this coupling problem reduces to one of feeding radio frequency energy to the wave guide with some conventional transmission line such as a coaxial line. …

Promotion Of Dropwise Condensation By Silicones, Charles Orlando Reed Jr.

Masters Theses

"Within this rather extensive field of study, transfer of heat through fluid films and heat transfer during the condensation process have been the subject of considerable thought and investigation both from a theoretical standpoint and with the aim of collecting data on specific systems to aid the design and construction of equipment in which heat transfer is involved….

The phenomenum of dropwise condensation has not become a common one in industrial practive for a number of reasons, namely, the difficulty in maintaining the activity of the promoter without frequent makeup because of impermanent attachment and volatility, the difficulty in finding …

Physical Properties Of Concrete At Early Ages, Peter G. Hansen

Masters Theses

"One of the principal types of heavy duty pavements in use in Missouri and in many other states is that known as rigid type portland cement concrete.

There have been two major trends in this type of pavement design. One of these trends is the use of short slabs, i.e., 15 to 25 feet, with no reinforcement. Another trend consists of concrete slabs containing distributed reinforcement such as wire mesh or reinforcing bars with joints occurring at fairly large intervals of 50 to 100 feet. As loads on the highways have increased the designers have increased the slab thicknesses and …

Phase Relationships In The Quaternary System Lime-Titania-Zirconia-Silica, Robert Martin Gruver

Doctoral Dissertations

"The phase compatibility relationships for the quaternary system lime-titania-zirconia-silica have been determined by a solid-phase-reaction technique.

Preliminary division of the system into Alkemade tetrahedra was based on the phases found in samples by X-ray diffraction analysis. These samples covered the entire volume of the tetrahedron in a systematic fashion. When the quaternary system had been divided into regions or compatible phases, an analytical method was used to calculate the phase composition of each sample. The relative amounts of each phase in a sample determined by X-ray analysis were compared with the calculated quantities, and agreement between the two methods verified …

Determination Of The Effect Of Air-Entraining Agents On Certain Physical Properties Of Concrete At Early Ages, James Arthur Spilman

Masters Theses

"Air entrained concrete over the past eighteen years has received national recognition as a result of its satisfactory performance in highway concrete pavements and other concrete structures subjected to outside exposure.

Numerous highway departments over the entire United States have laid test slabs made of air entrained concrete. Among those to date are Pennsylvania, New Jersey, New York, Connecticut, Massachusetts, Vermont, Maine, Illinois, Missouri and California. The primary purpose in building these test slabs was to investigate their durability or resistance to freezing and thawing and the action of various salts on air entrained concrete. The results of the test …

Correlation Of Weir Crest Depth, Froude Number, H/P Ratio, Weir Thickness, Paul Harrawood

Masters Theses

"1. The Froude number criterion for weir flow was shown to be sound and accurate by experimental verification of the theoretical correlation of Froude number and critical depth. It was proved that sub-critical, critical and super-critical flows are correctly identified by the Froude number.

2. In order to accurately determine the Froude number, the actual flow section at the weir crest must be known. Because of end contractions, it does not have the same dimensions as the weir opening. For the Cipoletti weir, it is the product of the length of the crest and the crest depth, i.e., A= by. …

The Strength Of Bituminous Mixtures And Their Behavior Under Repeated Loads, Leonard E. Wood, William Harner Goetz

JTRP Technical Reports

No abstract provided.

The Use Of Urban Characteristics In Estimating Internal Travel Patterns, John Wallace Barr

JTRP Technical Reports

No abstract provided.

Effect Of Crushed-Gravel Fine Aggregate On The Strength Of Asphaltic Surfacing Mixture, Robert P. Lottman, William Harner Goetz

JTRP Technical Reports

No abstract provided.

Report No. 2 On The Skid Tests Performed On Experimental Federal Aid Project Number F-147(6), Frank Melvin Holloway

JTRP Technical Reports

No abstract provided.

Permeability And Absorptivity Of Indiana Limestone Coarse Aggregates, William Lee Dolch

JTRP Technical Reports

No abstract provided.

Progress Report No. 4 On State Highway Needs In Indiana, Arthur K. Branham, Donald O. Covault, Harold L. Michael

JTRP Technical Reports

No abstract provided.

Progress Report No. 1 On The Skid Resistance Study, Experimental Test Section U.S. 421 South Of Kirklin, John Wallace Shupe

JTRP Technical Reports

No abstract provided.

Road Roughness Measurements On Indiana Pavements, Frank Melvin Holloway

JTRP Technical Reports

No abstract provided.

The Application Of Airphotos To Foundation Problems, Bruce Halsey Moore

JTRP Technical Reports

No abstract provided.

Progress Report No. 3 On The Skid Resistance Study Experimental Federal Aid Project No. F-147(6), John Wallace Shupe

JTRP Technical Reports

No abstract provided.

Test 569: Ford 960, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear. This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated. BELT HORSEPOWER TESTS TEST B: The throttle …

Test 563: Allis-Chalmers Wd-45 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: Allis-Chalmers WD-45 Diesel TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear. This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker, point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated. BELT HORSEPOWER TESTS TEST …

The Recovery Of Krypton From Dilute Gas Mixtures By Elution Techniques, David Graham Brown

Theses

An analytical method has been empirically developed for the analysis of dilute inorganio inert gas mixtures.

The method is based on a combined sorption-elution technique which makes possible the resolving of complex inert gas mixtures into their constituents.

Particularly the recovery of krypton from dilute gas mixtures was accomplished. Recovery efficiencies were as high as ninety-eight percent, while the average krypton purity was better than ninety-nine percent.

The Analogy Between Heat And Mass Transfer In Packed Beds, Jasper Joseph Correnti

Theses

An operation which recurs in many branches of chemical engineering is that in which a fluid - gas or liquid - is passed through a bed of granular solids for the purpose of removing from, or adding something to the fluid (or both). In the oil and sugar industries, oils or syrups are passed through beds of adsorbents to remove impurities causing color and other undesireable effects. In the recovery of volatile solvents, air charged with solvent vapor is passed over solid adsorbents. In leaching, liquids are passed through beds of solids to remove some constituent of the solids. In …

Vapor-Liquid Equilibrium Data And Distillation Packing Evaluation At High Vacuum, Edward Joseph Lasch

Theses

Vapor pressure date and vapor-liquid equilibria date at 1-30 m.m. pressure are presented for benzyl alcohol and benzyl-n-butyl ether system. Activity coefficients for the system are symetrical, the Margules constants ere A_1-2 = A_2-1= .301. HETP values observed at a condenser pressure of 1 m.m. for 1/4" and 3/4" Berl saddles, 1" Intalox saddles, Fibre Glass Combination packings # 076 and # 476, and a Knitted Wire Mesh pecking are presented as a function of the mass throughput and column pressure drop. At a condenser pressure of 1 m.m. the pressure drop per foot in terms of …