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A Study Of Degradation In The Pumping Of Dilute Polymer Solutions, I-Chung Chang

Masters Theses

"In the course of an investigation of the turbulent flow properties of dilute high polymer solutions in organic solvents, a number of supplementary investigations were required. These were: 1. Determination of the molecular weights of a number of polymers by intrinsic viscosity measurements. 2. Determination of the effect of pumping on the degradation of high polymers in dilute solutions. This included development of a method for estimating the concentration of dilute polymer solutions. 3. Determination of the effects of density, viscosity and non-Newtonian behavior on the calibration of turbine flow meters"--Introduction, page 1.

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

JTRP Technical Reports

No abstract provided.

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

Building Services Engineering

No abstract provided.

Stability Determination By Liapunov's Method In Nonlinear Control Systems, Neng-Chung Liao

Masters Theses

"An introduction to Liapunov's second method as it applies to control system stability is presented in this work. Main theorems and definitions of Liapunov's method are treated. In particular, Lur'e's method and Szego's method for testing the stability of a nonlinear system are presented, and several examples are used to illustrate these procedures"--Abstract, page ii.

The Cementing Of Hydraulically Placed Tailing Fill By The Oxidation Products Of Pyrrhotite, Stanley H. Alder

Masters Theses

"This thesis has been prepared to make available basic information on the use of the oxidation products of pyrrhotite to cement hydraulic tailing stope fill. As nothing has been published on this subject to date, a review has been made of pertinent information culled from accounts of work in related fields. From this study, a set of equations representing the most likely pyrrhotite oxidation reactions has been evolved and tests supporting these equations performed. Samples of fill, each containing from one to six percent of pyrrhotite, were cemented in the laboratory. They were then examined microscopically, subjected to unconfined compressive …

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, October 1964 (Complete Issue)

Building Services Engineering

No abstract provided.

Design Of Regeneratively Cooled, High Temperature, Clean Gas Plasma, Roger Carver Bartlett

Theses and Dissertations

The objective of this thesis was the design of a regeneratively cooled, high temperature, clean gas plasma generator facility. This facility was desired to extend the high temperature research capabilities of the Department of Mechanical Engineering.

Worldwide Training In Air Pollution Control, Harold M. Cota

Civil and Environmental Engineering

A survey of academic training in air pollution control was recently conducted for the APCA Education Council. Questionnaires were sent to faculty at over 200 universities in the United States and 150 universities around the world. This paper lists the schools which completed the questionnaire and includes the number of both undergraduate and graduate courses available, the academic department, and the range of research projects presently underway. The findings indicate that air pollution is a subject being taught worldwide. Most schools predict that their current level of instruction will not change in the next five years. Additions and corrections are …

Gas Phase Fugacity Coefficients, Harvey Joel Klee

Theses

A method is presented for calculation of fugacity coefficients in gas mixtures. This work is based on a recent paper by Leland, Gamson, and Chappelear, wherein they presented a new method for evaluation of ideal K values. The information required for the method presented here includes pure component physical properties, and generalized tables or equations for compressibility factors, fugacity coefficients, and real gas enthalpy departure terms. Pseudo-critical temperatures and pressures for the mixture are calculated using the expressions presented by Leland and Mueller.

Five different binary systems consisting of paraffin hydro-carbon and CO₂ mixtures containing 318 separate points were …

Thermodynamic Properties Of Perfluoropropane, Frank Fang

Theses

The thermodynamic properties of perfluoropropane (octafluoropropane) have been determined by the author for the saturated region from -100°C to the critical temperature, 71°C. Properties in the superheated region were likewise determined by the author for temperatures from -35°C to 300°C and over a pressure range from 1 atmosphere to 40 atmospheres. Enthalpies, entropies, densities, and specific volumes are reported for both vapor and liquid phases where applicable. The datum point used in these calculations is based on a zero value for vapor enthalpy and vapor entropy at -100°C and 0.0183 atmospheres.

Constants used in the Benedict-Webb-Rubin equation of state were …

Interphase Gas-Liquid Mass Transfer Study In A Horizontal Channel, Bruce R. Marx

Theses

The rate of transfer of hydrogen sulfide and of carbon dioxide from an atmosphere of the gas saturated with water to a flowing stream of water in a horizontal channel was investigated over a range of water flow velocities and absolute pressures.

Mathematical models describing the system in terms of the penetration and boundary layer theories were inadequate when used to calculate the diffusivity of each gas in water at various conditions. The results of the hydrogen sulfide-water system study shows a relationship between the diffusivity, the interfacial concentration and the liquid flow rate. The calculated diffusivity of the carbon …

Polypropylene Fibers, Anthony Vincent Galanti

Theses

One of the latest members of the rapidly growing therrnoplastic polymer family which appears capable of successfully competing with the currently saturated textile and chemical markets is polypropylene fiber. The objectives of this Thesis were to: (1) examine the effects of polymer characteristics and fiber processing conditions on the properties of polypropylene fibers, and (2) correlate all existing information on the physical, chemical, and mechanical properties of polypropylene fibers and comparatively evaluate this material with other fibers, natural and synthetic.

Polypropylene is the first member of a new group of polymers prepared by a mechanism defined as "stereospecific" polymerization. From …

Thermal Conductivity Of Solid Materials, Irwin N. Huppert

Theses

A literature search on the methods of determining the thermal conductivity of solids has been made.

A compilation of the various methods of determining the thermal conductivity of solids presented in the literature is given in the report. In general, the literature is lacking in correlations of thermal conductivity with other properties of solid materials. A review of the correlations found is presented. A summary of data presented in the literature is presented in the text.

A method of determining the thermal conductivity of solid materials without measuring the heat flow through the test specimen is presented. The use of …

Esterification Of Oleic Acid With Oleyl Alcohol, Robert Persurance

Theses

The esterification of oleic acid with oleyl alcohol was studied. A literature search showed that the chemical kinetics for this reaction had not been studied previously.

In the temperature range of 150 to 200°C. and up to a conversion of about 85 per cent, the esterification was found to be a second order reaction when the water of reaction was removed from the system by simple distillation.

Para-toluenesulfonic acid is an effective catalyst for this system, and the observed specific rate constant is a linear function of the catalyst concentration.

The effect of temperature on the specific rate constant for …

Point Flow Measurements In Irrigation Furrows, David Ernest Mortin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A new flow measurement concept is needed to facilitate the study of intake characteristics of the soil under furrow irrigation. Knowledge of the flow rate at various points throughout the furrow length is required but measurement must be made without altering the normal flow regime. Conventional water measuring devices such as weirs, orifices or flumes which require a loss of head in their operation, are usually unsatisfactory because to create a measuring head would alter the normal flow depth upstream thus changing the intake pattern.

The purpose of this study is to develop a simple, reliable method of measuring small …

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

Building Services Engineering

No abstract provided.

Welded Steel Bridge Girders, Omer W. Blodgett

Kentucky's Annual Forum on Transportation

No abstract provided.

A Laboratory Investigation Of The Properties Of Coal-Bitumen Paving Mixtures, Gary Grant Howard

Kentucky Transportation Center Research Report

The principal objective of this study was to investigate the feasibility of using coal, and to a lesser extent coal mine wastes, as aggregate in bituminous paving mixtures. These local aggregates were laboratory tested in bitumen-aggregate mixtures and, more particularly, in so-called cold-mixes. The bitumen-aggregate mixtures were evaluated by the Immersion-Compression Test, ASTM D 1075-60, with modifications for cold mixtures recommended in the Public Roads Journal (4).

In this initial study, since it was not possible to evaluate all types of mixtures, the primary question of whether coal and its waste products can be used as road aggregate could not …

Attack The Rabbit At Home : Destroy Warrens And Harbourage, J S. Crawford

Journal of the Department of Agriculture, Western Australia, Series 4

Effective rabbit destruction often calls for a carefully worked out control programme consisting of poisoning, fumigating and warren and harbourage destruction.

Possibly the most effective means of not only controlling rabbits but ultimately eradicating them from holdings is the destruction of warrens and harbourage.

The Levy Nest : A Useful Aid To Farrowing, P Mcnamara

Journal of the Department of Agriculture, Western Australia, Series 4

The levy farrowing nest which has given good results in England is a recent innovation in Australia.

It could be well adapted for W.A. conditions and is described here by Pig Husbandry Adviser Mr. P. McNamara, B.A. (Cantab.).

A Simplified Mulesing Crush, G T. Halpin

Journal of the Department of Agriculture, Western Australia, Series 4

DURING the last two years Mr. Tom Flanigan, a mulesing contractor in a large area centred at Katanning, has performed the mules-tailstrip operation on many thousands of lambs and sheep.

Your Light And Your Sight, M S. Pickett

Journal of the Department of Agriculture, Western Australia, Series 4

Good lighting in the home is essential to the comfort and wellbeing of all family members.

Though light needs vary for different age groups and tasks, it's important to have the proper lighting for your home.

New Regulations For Explosives, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

THE Explosives Regulations, 1963, are now in operation and the new rules will affect purchase and keeping of explosives by small users.

Have The Best Of Light In Your Home, M S. Pickett

Journal of the Department of Agriculture, Western Australia, Series 4

The last article in this series discussed the amount of light needed in the home. Now let's consider the quality of home lighting.

Lamps and fixtures properly selected and placed will give you the right light in the right place.

Opposed Disc Plough Furrows Hard Kimberley Soils, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

THE work of reclaiming the eroded areas of the Ord River catchment has posed special problems for field staff of the Department of Agriculture engaged on this large scale project.

Thousands of miles of furrows must be contour-ploughed and seeded in extremely hard ground over big areas of eroded country.

Migratory Movements Of Emus And Control Efforts, John L. Long, T. J. Tozer

Journal of the Department of Agriculture, Western Australia, Series 4

ALTHOUGH little data has been recorded on movements or migrations of the Emu (Dromaius novea-hollandiae), it is well known throughout the farming community that some such movement occurs in September and October in most years at least.

A Study Of Rotational Critical Speeds For A Multi-Mass System By Influence Coefficients, Kantikumar G. Patel

Masters Theses

"In this investigation an attempt has been made to determine the critical speeds of a multi-mass rotational system by using influence coefficients. Modes of vibrations are also examined at these critical speeds.

A shaft carrying five masses, supported by bearings at the ends, has been studied analytically. The length of the bearings is considered small with respect to the shaft length and therefore, the configuration is assumed to be point supported as a simple beam. The five masses, each weighing one pound, were placed at equal distances of 10 inches on a 60 inch shaft. The critical speed was examined …

Minimum Frictional Characteristics Of Optimum Journal Bearings., Navinchandra F. Shah

Masters Theses

"This investigation was conducted to develop a graphical representation to determine the optimum bearing conditions for minimum friction and to establish a theoretical approach for journal bearing design.

A series of graphs has been plotted for· the coefficient of friction versus the eccentricity ratio based on the. Sommerfeld number derived from Reynolds' differential equation, f or optimum journal bearings.

The results obtained in this research have been compared with those developed by other investigators. This comparison confirms the validity of the results presented in this thesis, so that it could be used advantageously for the design of optimum journal bearings"-- …

On Optimum Receiver Using Decision Theory, Philip T. Tai

Masters Theses

“In recent years communication engineers have given increased attention to the study of communication through random media. The name random is used to describe a medium the properties of which are stated only in a statistical sense. For example the impulsive response of a certain medium may only be known as one of an ensemble of possible impulsive responses; the particular member of interest being drawn up according to some statistical rule. In other words there exists some "uncertainty" concerning the characteristic description of the medium. Significant work on these problems has been done by Price and Turin. Related work …