Engineering Commons^™

Automated Circulation Control For The Utah State University Library, Richard M. Montgomery

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This package of programs is a result of the U.S.U. Library incorporating an automated control on the circulation of their books, which would provide the library with a daily record of all books in circulation, or not available for circu­lation, and send notices when books were overdue.

Because of the long-range program of the Data Processing Department of the University, it was decided to develop the software for this project rather than purchase the hardware.

Streaming Current And Streaming Potential Induced By Water Flow Through Porous Media, Mohamed M. I. Abaza

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was conducted to investigate analytically and experimentally the relationship between the rate of flow of water through porous material and the streaming current and streaming potential induced by this flow. The effect of dissolved salts in the permeating solution and the size of the soil particles was also investigated.

Results and conclusions of this study are summarized as follows:

1. A modified procedure using the appropriate delay to insure stead state conditions was used for the measurements of both streaming current and streaming potential.
2. The flow-pressure relationship was the same irrespective of the counter electro-osmosis (resulting from the streaming …

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.

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 …

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.

Water Budget Of Bear River Delta, Chia Chu Hsieh

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was made to prepare a mean annual water budget of the Bear River Delta, Utah and to determine the average annual outflow from the area into the Great Salt Lake. Solution of the hydrologic continuity equation was the analytical method used in determining the budget. Outflow to the lake was obtained as the residual between all items of inflow and other items of outflow. Three budgets were made using different techniques of estimating some of the items in the equation in order to serve as comparison checks on the final value of outflow to the lake. The time …

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 …

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 …

A Critical Analysis Of Water Rights And Institutional Factors And Their Effect On The Development Of Logan River, Frank W. Haws

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The physical setting of the Logan River Drainage Basin is first described with emphasis on the hydrologic and climatic factors that made the river an economic and social benefit.

The historical development of the river by man is then traced, and changes in water use patterns are pointed out. Methods used to administer water rights as water use patterns change is then described.

Legal controversies over water rights on the river are examined and methods of solving problems analyzed. A recent law suit between Logan City Corporation and the Logan River Water Users Association is examined in detail and the …

Determining And Telemetering Snowpack Water Content In Mountainous Terrain, Stephen Davis Clarke

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Snowpack water content is an important parameter in streamflow forecasts. At the present time water content of the snowpack is determined by manual methods, which are often expensive and time-consuming. The use of a pressure pillow to determine water content has shown promise in experimental applications.

The design and analysis of a pressure transducer suitable for use with remote telemetry equipment is presented. The transducer uses changing fluid pressure to vary an inductor.

Telemetry techniques suitable for use on Utah snow courses are analyzed. Emphasis is given to the passive and active remote radio relays.

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 …

Simplified Approach To The Problem Of Stability Of Soil Slopes Under Horizontal Earthquake And Pore Pressure, Dalim Kumar Majumdar

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A problem that has confronted engineers for a great number of years is that of determining the stability of soil slopes. Many factors introduce complications into stability analysis. Most embankments contain heterogeneous soils, often of several types. This and other complications usually necessitate the use of a simplified cross section. At the same time, it is often necessary to adopt simplified average soil characteristics which represent actual characteristics as best as possible. Those steps which bear on the choice of the simplified section and the simplified soil characteristics are always important in stability analysis work. These steps are independent, however, …

Evaporation And Potential Evapotranspiration In Central Iraq, Ala H. Al-Barrak

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The principal objectives of this study were to compare several formulas for estimating pan evaporation and evapotranspiration and to derive new formulas or modify existing formulas that will better fit the data for central Iraq. Computed evaporation was compared with measured evaporation by determining the differences and the ratios. The pan evaporation formulas were also compared by expressing them all in the form
Ev = K C_RC_TC_WC_HC_DTC_SC_M

Three pan evaporation formulas were modified. For the Meyer and Utah formulas, the constants were changed and expressions were derived …

Utah State University Stilling Basin Pipe Flow To Open Channels, Hameed Rasheed

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Energy dissipation problems are often encountered where pipelines discharge into open channels. Normal pipe flow velocities most often result in super-critical velocities in canals. These high velocities may cause scour, overtopping, and unstable flow in the channel.

The principal objective of the study was to find an efficient and economical design of a stilling basin transition from pipe flow to open channels. Pertinent variables were selected and their effects determined by extensive experimentation.

An efficient stilling basin was developed utilizing a short dissipator pipe on the wall opposite the inflow pipe. The optimum diameter, length, and differential elevation between center …

A Study Of Sprinkler Uniformity Evaluation Methods, Baha Dabbous

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The use of water in homes, on farms, by factories, and for recreational purposes has been increasing rapidly. Water use has doubled in the last three decades. By 1980, water use is expected to be double the current use. In arid and semi-arid regions, the practice of successful profit-yielding agriculture often depends on irrigation. Irrigation is, in turn, dependent upon a water supply which is limited. The highest possible efficiency should be maintained if maximum utilization of the available water resources for irrigation is desired. Sprinkler irrigation allows, among other things, high water application efficiencies with good distribution uniformities.

Soil Moisture As A Factor In Streamflow Forecasting For Logan River, Utah, Yu Kam Fok

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Purpose

Forecasting the annual water supply in an arid area by using the water content of snow on watersheds on some particular date, such as April 1, has become a very useful practice. Although these forecasts have given results of great practical value, they have sometimes been considerably in error. Seeking to minimize error, forecasters have incorporated various additional data such as temperature and antecedent rain to improve the relation between snow measurement and measured runoff.

Numerous methods have been suggested in the search for a reliable streamflow forecasting equation and various data have been used. Nearly all of the …

The Influence Of Water-Reducing Admixtures On The Curing Of Concrete, Wallace Don Budge

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The use of water-reducing admixtures in concrete has grown continuously since their introduction over 25 years ago, with a present estimated usage in the production of 25 million cubic yards of concrete annually in the United States alone. Opposition to anything added to concrete, other than cement, aggregates, and water, is gradually disappearing, and considerable recognition is being given to the value of using other ingredients.

The research contained in this study may be divided into two portions: tests to determine the rate of volume change of cement paste and compressive strength tests to indicate the effect of moist curing …

Streamflow Forecasting For Blacksmith Fork River, Utah, Yu-Si Fok

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The method for streamflow forecasting by using Fourier Series and Multiple Regression as a mathematical model have been suggested and proved with high accuracy for the streamflow forecasting on Logan River, Utah by Professor Cleve H. Milligan and Dr. Rex L. Hurst. ^1/

In this thesis the method is extended to the forecasting for the Blacksmith Fork River, south of the Logan River.

Because the climatological data are not available in the Blacksmith Fork watershed, this thesis also provides a technique for using the available data from adjacent watersheds.

Temperature Forecasting At Logan, Utah, For The Snowmelt-Runoff Season, Clifton Johnson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this thesis is to investigate the practicability of forecasting temperatures for the spring and summer snowmelt-runoff season. A successful temperature forecast for Logan, Utah, would be useful in studies of Logan River streamflow, as well as other related applications.

Logan, Utah, is situated in a region where the snow accumulates during the winter and early spring at high altitudes and remains until the proper sequence of meteorological events provides the thermodynamic conditions essential for melting. Snow surveys provide an index to the water available on a watershed. Temperature conditions during the melt period largely determine the available …

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 …

Evaluation Of Sprinkler Systems In Northern Utah, Murray J. Gavel

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Sprinkling as a method of irrigation has been expanding rapidly in the United States, with acreages irrigated by this method increasing every year. One of the major reasons for the expansion is the great improvements that have been made in sprinkler irrigation equipment. Light weight aluminum pipe, with quick couplers, improved pump and motor efficiencies have all made sprinkler irrigation more desirable. High efficiency of water application, labor requirements, and favorable plant response have also favored the expansion.

Another reason for the increase in sprinkler irrigation is that new lands being brought under irrigation are often not adaptable to surface …

A Comparison Of Over-Snow Vehicles Produced At Utah State Agricultural College, Ross W. Eskelson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Travel over snow by vehicle in Arctic and mountainous terrain is one of the most difficult problems of our Armed Forces and other public and private agencies. agencies whose services demand over-snow travel find little or no adequate means of transport. Those vehicles which are available, are either economically infeasible in construction and operating costs, or have serious operational limitations.

Survey Of Personnel Practices In Selected Industrial Organizations Of Utah, George R. Clawson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study deals with the factors which were responsible for the origin of personnel functions in a selected group of industrial organizations in the State of Utah. Although material is available concerning the factors which affected the establishment of personnel functions in the United States in general, there is little information regarding these factors in any one region. For this reason, an area study should be of value.

A Comprehensive Study Evaluating Driver Education In The Senior High Schools From Analyses Of Driving Records Of Salt Lake City High School Students, H. Keith Bushman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Officials responsible for the control and administration of the traffic on the highways and streets of the nation are aware that good roads, markings, signals, and equipment are necessary. They also realize that the human element involved in the process of operating a vehicle is of the utmost importance. Highways can only be termed good to the extent of the actions of the drivers who use these roads.

Studies have been made throughout the nation in different states and cities to determine the results of formal training of drivers. The results of these studies answer many questions and also leave …

Effectiveness Of Evaporation From Ground And Foliage In Reducing Soil Moisture Depletion, Val D. Wynn

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Field irrigation efficiency is the percentage of the water delivered to the field that becomes available to the crop as soil moisture. The so-called "evaporation losses" from wetted ground and foliage are rather difficult to measure, but are estimated by Christiansen (3) to be between 15 and 30 percent. No doubt part of this may be termed as a "loss," but the other part may be incorrectly termed as such. Many authorities claim that water must pass through the plant before being transpired into the atmosphere to be effectively used.

Sediment Movement In Bear River, Utah, Calvin Geary Clyde

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In the northern part of Cache Valley, Utah, accelerated erosion in recent decades has cut deep gullies of impressive size into the flat, irrigated bench land along the Bear River. Millions of tons of fine sediment have been washed into the river and great amounts have been deposited in the river bed. The resulting flooding and high water-table have caused much damage to the land near the river.

Drainage Of The Logan-Hyde Park-Benson Area, Utah, Gordon H. Flammer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

B.A. Etcheverry (4) in his book, Land Drainage and Flood Protection, states that inadequate drainage causes: (1) a public health menace, (2) an animal health menace, (3) lower grade plant life, (4) inadequate soil saturation, (5) lower soil temperatures, (6) shallow root penetration and, therefore, plant suffering in late summer months from effects of drought, (7) poor soil texture and workability, (8) increased surface washing and erosion of land surface, and (9) alkali and saline conditions. Other factors such as poorer roads and highways, decreased tax revenues, etc., might be added to this list. The advantages of adequate drainage …

Drainage Of Land Overlying An Artesian Aquifer: Logan-Cache Airport, John Paul Riley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Drainage problem Logan-Cache Airport is situated approximately 4 miles northwest of Logan, Utah, in sections 8, 9, 16, and 17, Township 12 north, Range 1 east, of Salt Lake Base and Meridian. The area of approximately 200 acres is a part of what is known as cache County Drainage District No.2. This district in itself contains more than 8,400 acres of waterlogged lands. Drainage of the se lands has, for many years, been a baffling and unsolved problem, complicated by 3 factors: (a) The whole of the valley in this area is underlain by an artesian ground-water reservoir. (b) The …

Consumptive Use Of Water By Major Farm Crops In The Milford District Of Utah, Glen H. Calder

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Irrigation water supplies in the arid West have become limited, yet the area of irrigable land is still extensive. To realize the more efficient use of the available supply, or for planning new irrigation projects, studies are needed to determine how much water is consumptively used by farm crops and native vegetation.

Industrial Arts In Utah--Its Introduction And Development, Charles W. Hailes

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

For the past few years many questions have been asked about the growth and development of the industrial arts program in Utah. Many of these questions could not be answered by leading educators. Thus, it is hoped that with the information presented in this report enlightenment may be given to unanswered questions.

The roots of present-day concepts and practices of industrial arts in Utah extend back about fifty years to the first schools established by the Mormon pioneers. The first school, in its simple setting, faced such issues as: What kind of industrial arts training shall be provided? How much …