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Test 909: Farmall 656 (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 …

Drag Forces On Magnetically Accelerated Particles, Darrell Winterton Walker

Theses and Dissertations

The object of this investigation was to determine the effect of acceleration on the drag of spheres as it differs from the steady state case. Steady state drag applies to the force acting on a single sphere moving at constant velocity through an infinite, continuous, incompressible, turbulence free fluid. Extensive experimentation has quite thoroughly documented the steady state drag characteristics of spheres. A dimensionless parameter associated with the drag force is sometimes used to correlate drag characteristics.

The Irish Plumbing And Heating Engineer, September 1965 (Complete Issue)

Building Services Engineering

No abstract provided.

Test 907: Nuffield 10 / 60 (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 …

Evaluation Of Chemical Composition And Particle Size Gradation Of Evaporation-Reducing, Monolayer-Forming Materials, Vaughn E. Hansen, Gaylord V. Skogerboe

Reports

Initial field testing began shortly after the arrival of materials in August, 1964. The field experiments were designed to evaluate the effects of the long-chain alcohol C20 and particle size gradation on the effectiveness of evaporation retardants when applied by aerial techniques. The materials which were tested at Utah Lake are listed below.

The Vibration Response Of Laminated Orthotropic Plates, Max E. Waddoups Jr.

Theses and Dissertations

The behavior of anisotropic materials has been the object of much recent research® The high strength to weight ratio needed by aerospace structures has necessitated the use of exotic, composite materials which generally exhibit anisotropic behavior® These materials cannot be fully utilized unless analytical techniques are used which take maximum advantage of their anisotropic behavior.

Test 906: Kubota Rv (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 …

Liquid Particle Interaction With A Normal Shock Wave, Victor George Forsnes

Theses and Dissertations

The atomization of a liquid by an air stream has been an item of much concern in the past, and there have been numerous experimental studies of the process made in an effort to correlate liquid and air- stream physical properties into a general model which will predict the degree of and the time required for atomization for a given physical situation. The breakup of liquid drops, a major portion of the atomization process, finds application in the field of meteorology, where the formation, breakup, and shape of raindrops is an item of much concern; in the field of internal …

Prediction Of Batch Heat Transfer Coefficients For Pseudoplastic Fluids In Agitated Vessels, Donald William Hagedorn

Dissertations

Experimental batch heat-transfer data were obtained for both Newtonian and pseudoplastic liquids in a baffled agitated vessel. The fluids tested had flow behavior in-dexes between 0.36 and 1.0; and the apparent viscosity ranged from 1 to 1200 centipoise. Four types of impellers (anchor, paddle, propeller, and disk and vane turbine) were studied using eleven separate impellers. The probable error in the measured heat transfer coefficient was ± 20 percent.

The effects of the generalized Reynolds number, generalized Prandtl number, and viscosity ratio were studied. In addition the effect of impeller diameter was studied for paddles, propellers, and turbines; and the …

Investigation Of The Octene-Decane-Urea Adduct Equilibrium System, Frederick Charles Guest

Theses

Concentrations of equilibrium mixtures formed by adding increments of octene to a solution of urea in methanol to form adduct are reported.

Calorimetric studies indicate that the addition of octene to a urea-methanol solution shows an endothermic heat effect prior to the formation of solid adduct. The heat effect becomes exothermic as solid adduct is formed.

Addition of decane to an equilibrium octene-urea adduct system increased octene concentration in the supernatent liquid, indicating an octene release from the original adduct as decane adduct was formed.

The order in which decane and octene were added to form the decane-octene-urea adduct system …

Cation Exchange Between Solutions Of Ferric Nitrate And Dowex 50x-8 Resin, Michael H. Mansky

Theses

The rate of exchange of ferric ions from solutions of ferric nitrate and hydrogen ions from Dowex 50X-8 has been studied in an agitated bed ion exchange column over a range of bed loading conditions. Agitation has been maintained in a regime known to indicate film diffusion control of rate in small scale batch reactors.

Calculated diffusion coefficients for the column are slightly higher than those determined in the batch reactor because of greater turbulence of agitation in the column.

The assumption of previous investigators concerning linearity of equilibrium data has been found to be invalid for the system studied. …

Activity Coefficient For Infinite Dilute Solution By Gas-Liquid Chromotography, Suresh Jivabhai Patel

Theses

Gas-liquid partition chromatography has been used to determine the activity coefficient for very dilute solutions of solute in non-volatile solvents.

Other, more classical methods of determining the activity coefficient are laborious and are neither as accurtate nor as precise as desired.

The systems studied were:

(1) Benzene-Dinonyl Phthalate

(2) Cyclohexane-Dinonyl Phthalate

(3) Benzene-Squalane

(4) Cyclohexane-Squalane

All systems were studied over the column temperature range of 50° to 110°C with constant pressure and sample size. A study was also made on the effect of column pressure at constant temperature and sample size. One system was studied with variable sample size but …

The Thermal Conductivity With Vapor Pressure For N-Paraffin Hydrocarbons, Jacob Tolsma

Theses

A literature search of the thermal conductivity of pure liquids has been made and experimental values have been compiled. Study of the theory of the thermal conductivity of liquids indicated that a relationship exists between thermal conductivity and viscosity. Previous investigations have found an almost linear relationship between the logarithms of viscosity and vapor pressure for n-paraffin hydrocarbons. In this investigation the logarithm of thermal conductivity plotted versus the logarithm of vapor pressure for the same series was also found to be almost linear. The equation of the line when combined with a linearized Antoine equation in terms of the …

Test 905: Nuffield 10 / 42 (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 904: Allis-Chalmers Series Ii D-21 (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 902: David Brown 880 (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 903: David Brown 990 (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 …

Graphical Solutions To Frequently Encountered Fluid Flow Problems, Roland W. Jeppson

Reports

Introduction

Graphical methods are often used by engineers to solve frequently used or complex formulas which require trial and error solutions. Perhaps the best known graphical tool used by the engineer is the slide rule, but anyone familiar with its use will recognize its limitations both in time and accuracy. For many problems which involve many repetitive computations high speed digital or analog computers are the most effective tools for solution. There are, however, many problems requiring considerable engineering time for slide rule solutions where solutions are not justifiable on computers. The use of nomograms for such problems is desirable. …

An Investigation Of The Need To Correlate Academic Subject Areas With Industrial Arts, Ernest James Boedcher

Graduate Student Research Papers

This study was initiated as a result of a need that became apparent in two industrial arts seminars at Central Washington State College. Studies reveal that industrial arts teachers use principles, laws, and applications of mathematics and science daily, but these are seldom recognized and made meaningful to the students. As a result of this study industrial arts teachers may see a way to use this material to initiate similar situations in their teaching.

Planning And Scheduling Software Programs With Pert, Henry E. Mielo

Theses

The use of the Program Evaluation and Review Technique (PERT) in planning and scheduling software programs was discussed in this thesis. A real world program, referred to as the Wrap-Around Simulation or WAS Project, was selected to illustrate that complex efforts in the software domain can respond favorably to modern planning and scheduling techniques

The WAS Project included the provision of a digital simulation of the shipboard environment in which a Digital Fire Control Computer (DFCC) would operate as part of a Digital Fire Control System. The digital simulation afforded a well controlled and conclusive checkout of the operational program …

Test 901: Massey-Ferguson Mf 150 (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 …

Estimation Of Pan Evaporation And Potential Evapotranspiration Of Rice In The Central Plain Of Thailand By Using Various Formulas Based On Climatological Data, Paitoon Palayasoot

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Water has become one of major national concerns, and it is the limiting factor in the expansion of an irrigated agriculture. Irrigation development is rapidly growing all over the world. New lands are being brought under irrigation and older irrigation lands are being improved. In the planning and operation of an irrigation project, the estimation of water requirements and evapotranspiration, or consumptive use, requires careful consideration. A knowledge of evapotranspiration is playing an increasingly important part in irrigation science. It is the best index of water requirements which represent the amount of water that should be applied by irrigation for …

Iterative Method In Storage Routing, Mohan Lal Kapoor

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The objective of this study is to examine the feasibility of applying analog computer iterative methods to the study of storage routing.

A Study Of The Structure Of Shear Turbulence In Free Surface Flows, Maddineni Venkateswara Rao

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Turbulence is a familiar phenomenon which gives rise to complicated problems in many branches of engineering. Hinze has set forth the following definition for turbulence: "Turbulent fluid motion is an irregular condition of flow in which the various quantities show a random variation in time and space coordinates, so that statistically distinct average values can be discerned." Osborne Reynolds (1894) was the first to introduce the notion of statistical mean values into the study of turbulence. He visualized turbulent flow as the sum of mean and eddying motion. By introducing this sum of mean velocity and fluctuating velocity into the …

The Influence Of Exchangeable Ions And Their Concentration In The Pore Fluid On Plastic And Strength Properties Of Cohesive Soil, Mahmoud H. Abd-El-Aziz

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A study was conducted to find out both the effect of different exchangeable cations and the concentration of ions in the soil pore fluid on strength and plastic properties of a sample of cohesive soil taken from the bank of an open drain ditch at the Utah State University Irrigation and Drainage Farm.

The experimental results of this study may be summarized by the following points:

1. A general decrease of liquid limit and an increase in both shear strength and modulus of elasticity, with increasing salt concentration in the pore fluid, were observed for all samples, with the exception of …

Flume Study Of The Effect Of Concentration And Size Of Roughness Elements On Flow In High-Gradient Natural Channels, Mohamed Wafaie Abdelsalam

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In recent years investigators have given increased attention to flow in natural, high-gradient, rough, open channels. Studies include work in both the laboratory and in the field. Solutions to the problem are still incomplete; however, continued attention by investigators is needed to answer many questions. Using a laboratory flume, the writer studied one of the questions concerning the relative importance of gross velocity fluctuations versus turbulent mixing, and the ranges of each under different ranges of submergence and kineticity of flow. In the different ranges, the effect of size and concentration of the roughness elements was studied.

Directional Effects Of Transient Radiation On Semiconductor Devices, Arthur C. Golubiewski

Electrical and Computer Engineering ETDs

The purpose of this study is to determine the directional effects of transient gamma radiation on electronic components. An analytic expression will be developed for radiation effect as a function of angle, and experiments will be described which verify the mathematical analysis.

Construction, Instrumentation, And Preliminary Verification Of A Physical Hydrologic Model, Donald L. Chery Jr.

Reports

From theoretical consideration involving a rationalized dimensional analysis of the rainfall-runoff phenomena, dimensionless products of the pertinent variables are derived. These dimensionless products guided the design and construction of a rainstorm simulator and topographic model. The design and construction of these two basic elements of the physical hydrologic model are described. A description of the instrumentation and several relevant calibration tests is followed by a discussion of two preliminary verification test sets. The tests indicated that some necessary refinements in equipment and instrumentation were needed before more precise experimental data could be obtained. Further, the tests produced results which encouraged …

Water Vapor Measurements Using Infrared Absorption, Duard S. Woffinden

Reports

Man’s attempt to control the amount of available water has taken two approaches, i.e., weather modification and water storage through the use of man-made reservoirs. In either case, it is necessary to ascertain the water vapor content of the atmosphere. In the case of weather modification, if the water vapor content is insufficient, it is futile to attempt to start precipitation. In the case of reservoirs, it is important to know the evaporation rate since it has been demonstrated that some reservoirs provide a net negative contribution to the total water supply by increasing the normal evaporation losses. Any attempt …

Submergence In A Two-Foot Parshall Flume, Gaylord V. Skogerboe, M. Leon Hyatt, Joe D. England, J. Raymond Johnson

Reports

The primary objective in this study was to ascertain the validity of the method of analyzing submergence developed by Hyatt (1965) in a standard 2-foot Parshall flume. The method of analyzing submergence was first developed for a trapezoidal flume (Hyatt, 1965), was later verified for a rectangular flume (Skogerboe, walker and Robinson, 1965), and has been shown by the authors to be valid for small Parshall flumes (Skogerboe, Hyatt, Johnson, and England, 1965). In view of previous findings, it was felt the method would also be valid for large Parshall flumes, and for this purpose the 2-foot flume was selected. …