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A Theoretical Investigation Of Periodic Precipitation, Jack M. Scrivner

Masters Theses

"The problem of periodic precipitation in solution or gel is considered from the standpoint of supplementing the simple diffusion equation with chemical reaction rate terms. This addition has the effect of making the differential equations of the process non-linear.

The system of equations admits of a periodic, steady-state solution under certain conditions, but lack of experimental values for the parameters prohibits a definite statement as to whether or not the model is valid"--Abstract, page ii.

The Determination Of Ethanol In Aqueous Solution By Gas-Liquid Partition Chromatography, Robert L. Morrison

University of the Pacific Theses and Dissertations

The present chemical and physical methods for the determination of ethyl alcohol are all subject to systematic errors derived from any of a number of interfacing substances usually present in solution with the ethanol. Some of the most popular methods are slow and tedious and require a good deal of skill and technique to perform. The dichromate (2), pycnometer and refractometer methods are three such methods. The interfering substances most often present in industrial and food products are fusel oils and acetaldehyde. These substances interfere in the three methods just mentioned. It is of course possible to analyze for these …

The Monadnock Volume 35, Number 1, December 1960, Clark University Geographical Society

The Monadnock (Clark Geographical Society)

Volume 35, Issue 1 of The Monadnock. The Monadnock was the alumni magazine of the Clark University Geographical Society (1927-1985) (2014-present).

Test 782: Case 741 (Lpg), 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 781: Case 741c (Lpg), 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 …

An Investigation Of Solvent Extraction Techniques In The Determination Of Formation Constants Of Complex Species In Aqueous Silver Chloride Solution, David Martin Bodily

Theses and Dissertations

Solvent extraction techniques have been used to determine formation constants for molecular silver chloride and dichloro silver (I) ion in unsaturated aqueous solutions. Nitrobenzene was used to extract the molecular silver chloride from the aqueous silver chloride solution. The total concentration of silver in each phase was determined by radioassay techniques and related by an expression involving the equilibrium constants. The reciprocal of the distribution ratio times the activity of the chloride ion was plotted versus the activity of the chloride ion and portions of the curve were analyzed by the method of least squares to obtain values for the …

Measurements Of The Intensity Of Mu-Mesons In Cosmic Rays During A Period Of Unusual Solar Activity, Ronald A. Korsak

Physics & Astronomy ETDs

Because of the incomplete understanding of the processes which cosmic rays undergo in the atmosphere, there is still no generally accepted treatment of the atmospheric dependent variations of the intensity or preferred method of establishing correct coefficients.

A Study To Ascertain Factors Which Influence Job Satisfaction Among The Head Nurse And Staff Nurse Groups In A Selected Denominational Hospital, Yvetta Nelson

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this survey was to ascertain factors which influence job satisfaction among the head nurse and staff nurse groups in a selected denominational hospital.

For this study the normative survey approach was used as the method of research. The SRA Employee Inventory put out by Science Research Associates, Inc., in connection with the Industrial Relations Center of the University of Chicago was the tool of research used to collect the data. Eighty-two professional nurses participated in the survey.

The data were tabulated, analyzed and interpreted in relation to business and industrial norms as established by Science Research Associates, …

An Investigation Of The Formation Constant Of Molecular Silver Chloride Using Ion Exchange Techniques.|Nii.|Pan Investigation Of The Rate Of Precipitation Of Silver Sulfide By Thioacetamide, James W. Pyper

Theses and Dissertations

The first part of this work reports on the investigation of the formation constant of molecular silver chloride using ion exchange techniques. In order to determine the formation constant, it was necessary to develop a method of rinsing the sorbed molecular silver chloride from the resin. It was found that desorption with nitrobenzene would remove the sorbed molecular species. However, the formation constant was not calculated since the nitrobenzene used contained hydrogen ion and chloride ion which removed silver ion as well as the molecular species. In the study of the formation of silver sulfide by the reaction between the …

The Influence Of Soil Moisture Suction And Evaporative Demand On Actual Evapotranspiration And Yield Of Alfalfa, Bozorg Bahrani

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Evapotranspiration has been defined as the combination of evaporation of water from the soil surface and transpiration of water by vegetation. If the ground is well covered by plants, most of the water is lost by transpiration of water directly from the plant tissue, rather than by evaporation of water directly from the soil surface. The term consumptive use is synonymous with evapotranspiration.

Instructions For Contributors, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.

Drought Feeding Of Sheep, Laurence C. Snook

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

WHEN this talk on drought feeding of sheep was suggested conditions were very serious over large tracts of pastoral country.

Many stations had not received a worthwhile rain for over 12 months and it appeared that grazing animals would have to be fed if they were to survive.

Requests have been received for advice on the cheapest way to keep sheep alive. Drought feeding in any form is a gamble. There is always the risk that the stock will eventually die despite the consumption of much costly feed.

It follows that if an effort is to be made to save …

The Dispersal And Acclimatization Of The Muskrat, Ondatra Zibethicus (L.), In Finland, Atso Artimo

Other Publications in Wildlife Management

The natural range of the muskrat, Ondatra zibethicus (L.), comprises the major part of the North American continent (Fig. 1). In the northern and eastern parts of its range its distribution is more or less continuous, but in the arid west it is very patchy. The species is absent from some areas which, according to Storer (1938), are suitable for it. This writer assumes (op.cit. pp. 159-160) that »Muskrats probably reached some of the now isolated waters of the West during a period when aquatic and palustrine habitats were more widespread, in late Pleistocene or postglacial times. With subsequent contraction …

Weed Research. 7. Weed Control Around The Yard, Geoffrey A. Pearce

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

MANY farmers and city householders have weed problems around houses and sheds which can be readily overcome by treatment with appropriate herbicides.

The risk from fire through weeds and unslightly growth can easily be removed and an area free of any plant growth can be maintained with little effort for a considerable period.

A Chromatographic Study Of The Polyphenols In Cured Tobacco, Marvin Dennis Edmonds

Master's Theses

The object of this project was to isolate, separate, and identify the polyphenols in tobacco. Following this, the aim was to develop a method for the quantitative determination of the major polyphenols in tobacco.

Existing methods for the determination of polyphenols in tobacco involve lengthy procedures which are concerned with one or two of the polyphenols rather than the· complete class of compounds. The methods consist of exhaustive extraction procedures, lengthy chromatographic procedures and numerous methods of identification.

Extensive research on the determination of polyphenols by chromatography has been carried out in the field of tobacco and in other fields. …

Preparation Of Elemental Boron And Measurement Of Its Emittance At Incandescent Temperatures, Claude P. Talley

Master's Theses

The normal spectral emittance at 0. 65 microns of elemental boron specimens was measured at incandescent temperatures by the hollow-tube method, This was made possible by depositing boron onto thin-walled hollow tubes of graphite and molybdenum. An approximate value of the total hemispherical emittance for boron was also obtained. The deposition of boron was accomplished by chemical vapor plating with boron tribromide and hydrogen. The boron produced was characterized in several ways.

Sacramento Wildlife Development Project, Melvin O. Steen, Willard R. Barbee, C. Phillip Agee, Richard J. Spady

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

During the past year, the project has been in a period of transition from a developmental phase to management and maintenance phases. At this time, most of the major developmental work has been completed, with mainly corrective or finish work remaining. Major developmental work yet to be done includes the laying of buried pipe from the wells to the lake bottom; and the design, construction and installation of suitable hunting blinds for the area. When the aforementioned work is completed the project will settle almost entirely into maintenance and management activities.

International Farm Crawlers: T-4, T-5, & Td 5, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Commercial Vegetable Growing In The Perth Metropolitan Region, L T. Jones

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

MARKET gardening with sprinkler irrigation on deep sandy soils around Perth is really a commercial application of hydroponics or sand culture principles.

Provision of a continuous and adequate supply of nitrogen is the major problem. Peat swamps scattered among the sandy areas have higher natural fertility. However, their common problems are drainage, acidity ("sourness"), salt and various special soil deficiencies. Over-liming of acid swamps can cause new problems.

Method Of Teaching Basic Crystallography To The Beginning Student, Robert J. Willard

Journal of the Arkansas Academy of Science

No abstract provided.

Test 766: Oliver 1800, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 733: Mccormick International B-275 (Diesel) Also International 354 (Diesel) 8-Speed, 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 734: David Brown 850 (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 771: Case 541 (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 …

Factors That Influenced Homesteading And Land Abandonment In San Juan County, Utah, Melvin J. Frost

Theses and Dissertations

Homesteading in San Juan County, Utah is for the most part, located on Sage Plain at elevations between 6,000 to 7,200 feet. Sage Plain is an undulating surface deeply dissected with canyons. The soil is relatively shallow and the predominant vegetation is pinyon, juniper, sage brush and blue-stem grass.

The 52 year mean precipitation is 15.47 inches. Since the beginning of weather records there has been a noticeable decrease in the annual precipitation. There is generally sufficient moisture to mature winter wheat. Pinto beans are also grown in the more favorable locations.

Principle factors that have influenced homesteading and land …

The Dielectric Strength Of Some Anti-Corrosive Paints, John Harvey Gustafson

Masters Theses

"Metals undergo chemical reaction with nonmetallic elements of their surroundings to produce compounds which are either oxides or salts. These corrosion products, as they are called, may accelerate, impede, or have no influence on the course of further corrosion. It is unfortunate that iron, the metal of greatest use to man, receives very little protection from its corrosion products. There are no easy or inexpensive means of prevention of this corrosion and at best the reactions can only be controlled. One method of control is the use of anti-corrosive paints. Their protection is produced by placing an inert, continuous, and …

Studies In The Mulga Pastoral Zone. 1. The Grazing Of Wandarrie Grass Associations, D G. Wilcox

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

THE establishment of the Wiluna office of the North-West Branch marked the commencement of a series of investigations into the pastures of the mulga zone.

Unlike the agricultural areas where a fund of knowledge exists on the growth habits of the pastures, the pastures of this area were completely unknown.

The preliminary investigations had to be aimed at forming an understanding of the reactions of the various plants to rain, to temperature and seasonal conditions and to grazing in an area of extremely low rainfall reliability.

The Fundamental Atomic Particles, Ransom Bloomer Beers

Masters Theses

No abstract provided.

Space Focus, Space Enterprises, Inc.

Space Journal

No abstract provided.

Space Journal, Vol. 2, No. 2, December 1959, Space Enterprises, Inc.

Space Journal

No abstract provided.