Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Civil and Environmental Engineering (2086)
- Physical Sciences and Mathematics (904)
- Aerospace Engineering (694)
- Environmental Sciences (641)
- Water Resource Management (557)
-
- Mechanical Engineering (516)
- Electrical and Computer Engineering (475)
- Biomedical Engineering and Bioengineering (465)
- Biological Engineering (263)
- Civil Engineering (216)
- Engineering Education (188)
- Hydraulic Engineering (187)
- Environmental Engineering (143)
- Life Sciences (142)
- Earth Sciences (84)
- Computer Engineering (71)
- Physics (53)
- Electrical and Electronics (43)
- Bioresource and Agricultural Engineering (36)
- Education (34)
- Biology (27)
- Aviation (21)
- Materials Science and Engineering (17)
- Computer Sciences (16)
- Medicine and Health Sciences (16)
- Social and Behavioral Sciences (16)
- Chemical Engineering (14)
- Plant Sciences (11)
- Transportation Engineering (11)
- Keyword
-
- UWRL (258)
- Design (239)
- Engineering (117)
- College of Engineering (114)
- Optimization (70)
-
- Utah (69)
- Groundwater (67)
- Management (51)
- Modeling (51)
- Water (51)
- Irrigation (48)
- Automation (47)
- Faculty (36)
- Remote sensing (36)
- Hydrology (35)
- Scanning electron microscopy (34)
- Evapotranspiration (33)
- Simulation (31)
- CFD (30)
- College (30)
- Engineering education (27)
- UAV (27)
- Water resources (27)
- Calibration (25)
- Agriculture (24)
- Award (24)
- Wastewater (24)
- CubeSat (22)
- Evaluation (22)
- Optimal (22)
- Publication Year
- Publication
-
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (1189)
- Reports (550)
- College of Engineering News (463)
- Civil and Environmental Engineering Faculty Publications (431)
- Utah Space Grant Consortium (255)
-
- Electrical and Computer Engineering (191)
- Small Satellite Conference (191)
- Space Dynamics Laboratory Publications (186)
- All Graduate Theses and Dissertations, Fall 2023 to Present (173)
- Cells and Materials (166)
- All Graduate Plan B and other Reports, Spring 1920 to Spring 2023 (129)
- Student Research Symposium (119)
- Electrical and Computer Engineering Faculty Publications (117)
- Undergraduate Honors Capstone Projects (103)
- Mechanical and Aerospace Engineering Faculty Publications (101)
- Biological Engineering Faculty Publications (88)
- All ECSTATIC Materials (83)
- Publications (76)
- International Symposium on Hydraulic Structures (75)
- Spring Runoff Conference (73)
- International Junior Researcher and Engineer Workshop on Hydraulic Structures (65)
- Funded Research Records (54)
- Mechanical and Aerospace Engineering Student Publications and Presentations (47)
- Civil and Environmental Engineering (44)
- Biological Engineering (40)
- Mechanical and Aerospace Engineering (39)
- Engineering Education Faculty Publications (37)
- Research on Capitol Hill (27)
- 4th International Workshop on Labyrinth and Piano Key Weirs (24)
- Browse all Datasets (21)
- Publication Type
- File Type
Articles 5401 - 5430 of 5451
Full-Text Articles in Engineering
Developing A State Water Plan Utah's Water Resources--Problems And Needs--A Challenge, Utah Water Research Laboratory
Developing A State Water Plan Utah's Water Resources--Problems And Needs--A Challenge, Utah Water Research Laboratory
Reports
Of all the natural resources with which Utah has been endowed none is more vital to the social and economic well-being of the people than it water resource. We cannot manufacture water. We have found no acceptable substitute. Not one more drop of water is available for our use today than was available to the pioneers. Yet water uses and water demands have multiplied over the years. Since we can do little to change nature's water allotment to Utah we must learn how to utilize our existing supplies more judiciously. This means devoting increasingly more attention to problems of water …
A Study Of Sprinkler Uniformity Evaluation Methods, Baha Dabbous
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.
Water Requirements For Waterfowl Areas Near The Great Salt Lake Parts V-Vi, J. E. Christainsen, Ming Chang Tsai, D. K. Kaushik, J. B. Law, J. W. Teeter
Water Requirements For Waterfowl Areas Near The Great Salt Lake Parts V-Vi, J. E. Christainsen, Ming Chang Tsai, D. K. Kaushik, J. B. Law, J. W. Teeter
Reports
This report reviews activities on this project since the Progress Report, Part IV, June 1961.
The summer of 1961 has been one of the driest on record for Ogden Bay and Howard Slough Refuge. The extreme shortage of irrigation water has resulted in very little flow in the Howard Slough which originates from return flow. The available water from the Weber River for the Ogden Bay Refuge was also the lowest on record. The scarcity of water at these two refuges has resulted in increased salinity.
Most of the routine work on the project during the summer was done by …
The Influence Of Water-Reducing Admixtures On The Curing Of Concrete, Wallace Don Budge
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 …
Soil Moisture As A Factor In Streamflow Forecasting For Logan River, Utah, Yu Kam Fok
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 …
A Rational Approach To The Estimation Of Evaporation And Evapotranspiration From Climatological Data, Jerald Emmet Christiansen, B. B. Patil
A Rational Approach To The Estimation Of Evaporation And Evapotranspiration From Climatological Data, Jerald Emmet Christiansen, B. B. Patil
Reports
Many attempts have been made to derive mathematical expressions relating evaporation and evapotranspiration, or consumptive use, to climatological data. IN the United States, the Blaney-Criddle formula is probably the best known for estimating consumptive use (2 and 3). Blaney (1) has also suggested that this formula is suitable for estimating evaporation as measured with a Weather Bureau pan. Other well known formulas are the Penman formulas (10), the Thornthwaite formula (15) and the Hargreaves formulas (8). Halkias, Beihmeyer and Hendrickson (6) suggest that water requirements of crops can be determined from atmometer data. Lowry and Johnson (() in an early …
Model Analysis Of Spillway And Stilling Basin Of Porcupine Dam, Gordon H. Flammer, C. Earl Israelsen
Model Analysis Of Spillway And Stilling Basin Of Porcupine Dam, Gordon H. Flammer, C. Earl Israelsen
Reports
Introduction: The Engineering Experiment Station at Utah State University was engaged by the Utah Water and Power Board to make a model analysis of the spillway and stilling basin of the Porcupine Dam. This dam will be located on the East Fork of Litle Bear River, just east of Avon, Utah. It will be approximately 650 feet long and 160 feet high, composed of zones earth fill with rock rip-rap facing. The spillway will have a reinforced concrete inlet section and the remainder of the chute and stilling basin will be excavated out of the rock and leck unlined. The …
Irrigation And Drainage Problems In Uruguay, Jerald Emmet Christiansen
Irrigation And Drainage Problems In Uruguay, Jerald Emmet Christiansen
Reports
Synopsis: Uruguay irrigates about 65,000 acres, mostly rice (74%) and sugar cane (15%). Summer rainfall averages about 3.5 in. per month, but frequent droughts seriously affect both crops and livestock. Irrigation can be increased by storage in small reservoirs on tributary streams by means of low earth dams. Some areas will require flood control and draiange before intensive agriculture can be practiced.
Streamflow Forecasting For Blacksmith Fork River, Utah, Yu-Si Fok
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.
Report Of Engineering Research With Recommendations For Strengthening The Program, Vaughn E. Hansen
Report Of Engineering Research With Recommendations For Strengthening The Program, Vaughn E. Hansen
Reports
Progress of Engineering Research: The growth initiated with the reorganization of the Engineering Experiment Station in 1957-58 has been stready and consistant through 1958-59. Every sign points to continued expansion through the coming year. This growth is shown in Table 1. The number of active projects this year has increased to nineteen, the funds allocated for Engineering research were $53,861 plus $17,826 to contract research, exclusive of approximately $75,000 in the Agricultural Experiment Station. The number of staff members engaged in research is now twelve. Contract research money has been obtained to finance four projects which were financed previously with …
The Importance Of Hydraulics Of Surface Irrigation, Vaughn E. Hansen
The Importance Of Hydraulics Of Surface Irrigation, Vaughn E. Hansen
Reports
Summary: Surface irrigation is a complex hydraulic phenomenon. The hydraulic elements involved in surface irrigation are listed and discussed. Relating these hydraulic elements is the key to efficient irrigation, good design, and permanent agriculture.
Temperature Forecasting At Logan, Utah, For The Snowmelt-Runoff Season, Clifton Johnson
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
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
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
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.
Measurement Of Irrigation Water, Eldon M. Stock
Measurement Of Irrigation Water, Eldon M. Stock
Reports
Foreword: Although irrigation has been practiced in Utah for more than one hundred years, irrigation water still is being distributed to farmers with little or not thought about its measurement. A farmer would not think of buying or selling other farm commodities, such as hay, grain, beef cattle, or dairy products, without weighing or accurately measuring them, but at the same time he is often content to accept and pay for the irrigation water received with little or no knowledge as to the actual amount received, or whether or not he is receiving the amount he is entitled to. Measurement …
Henrys Fork Project Wyoming-Utah, Bureau Of Reclamation; Department Of Interior
Henrys Fork Project Wyoming-Utah, Bureau Of Reclamation; Department Of Interior
Elusive Documents
The accompanying report on the potential Henrys Fork project presents in reconnaissance scope the possibilities for further water resource development in the Henrys Fork and Sheep Creek Basins in northeastern Utah and southwestern Wyoming. The report is based on findings of recent investigations conducted during the past year although much of the available basic data used in the studies was obtained in previous intermittent investigations made during the past 50 years.
Effectiveness Of Evaporation From Ground And Foliage In Reducing Soil Moisture Depletion, Val D. Wynn
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.
Survey Of Personnel Practices In Selected Industrial Organizations Of Utah, George R. Clawson
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
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 …
Evaluation Of Sprinkler Irrigation Systems In Northern Utah, Jay M. Bagley, Wayne D. Criddle
Evaluation Of Sprinkler Irrigation Systems In Northern Utah, Jay M. Bagley, Wayne D. Criddle
Reports
Summary and Conclusions: Sprinkler irrigation will continue to expand in Utah as well as in other irrigated areas of the world. This method of irrigation is suitable to all farm crops grown in the state and to most soils. It is particularly adapted to steep foothill areas where the water supply can be obtained at higher elevation and pumping is not necessary to develop pressure for the sprinkler systems. Also, much of the irrigated land of the state, particularly along the Wasatch front, is owned and operated by "part-time" farmers. Having the water under complete control and the irrigation schedule …
Sediment Movement In Bear River, Utah, Calvin Geary Clyde
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 Land Overlying An Artesian Aquifer: Logan-Cache Airport, John Paul Riley
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
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.
Drainage Of The Logan-Hyde Park-Benson Area, Utah, Gordon H. Flammer
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 …
Industrial Arts In Utah--Its Introduction And Development, Charles W. Hailes
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 …
Growth And Development Of The Present Division Of Technology At Utah State Agricultural College, Lynn R. Willey
Growth And Development Of The Present Division Of Technology At Utah State Agricultural College, Lynn R. Willey
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This thesis traces the growth and development of the Division of Technology at the Utah State Agricultural College from 1890, when the first mechanic arts classes were taught as part of the offering in Mechanical Engineering, to the present, covering as thoroughly as possible from the source material available, the chain of events out of which the present expansive and complex program has evolved. The intention here is not merely to itemize the steps in this development, but wherever possible to investigate the influences involved; also, to give some attention to the industrial, education, and war-time needs that have created …
The Discharge Coefficient In The Coordinate Method For Measuring Pipe Flow, Day L. Bassett
The Discharge Coefficient In The Coordinate Method For Measuring Pipe Flow, Day L. Bassett
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Agriculture, industry, and community life continue to impose great demands upon available sources of water, particularly in arid and semi-arid regions. Efficient utilization of water, demanding careful distribution and use, implies flow measurement.
The coordinate method for measuring pipe flow finds some application in industry where estimates must be made of the flow of fluids containing relatively large amounts of suspended solids that would render other measuring devices ineffective. Widest application may be found, however, in agriculture where a simple, quick, and inexpensive means for estimating well flow, pump discharge, drain efflux, etc., is necessary if the farmers are to …
Canal Seepage Loss Investigations In The Lewiston Area, Utah, Robert V. Thurmond
Canal Seepage Loss Investigations In The Lewiston Area, Utah, Robert V. Thurmond
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
With population, industry, and irrigation ever increasing in the arid west, there arises new and greater demands for water. Much of the water now urgently needed is lost as seepage from the many miles of canals in the western states.
Rohwer and Stout (18) have estimated that in the western states from one-third to one-half of the water diverted for irrigation is lost before it reaches the farmers' fields. Of these losses, seepage probably accounts for the greatest loss. It is reported by the Bureau of Reclamation (14) that, of the 14,600,000 acre feet of water diverted on 36 projects …
An Evaluation Of Necessary Elements For Desirable Industrial Arts Instruction In The Elementary Schools Of Utah, Lee W. Ralphs
An Evaluation Of Necessary Elements For Desirable Industrial Arts Instruction In The Elementary Schools Of Utah, Lee W. Ralphs
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
An essential part of the elementary school curriculum is the creative activity program connected with it. Educators believe that the fullest development of the child can best be attained through a program which provides a series of well selected experiences and activities. At present education considers the whole child--his abilities, needs, and interests--as vital factors in the development of a good curriculum, instead of merely the concrete and formal subject matter. Recently there has been an expressed view, by administrators of elementary school systems and many authorities and industrial arts teachers, that there is a definite need for formulating an …