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A Streamflow Simulation Model For A Semi-Arid Region, Adnan A. Saad, L. Douglas James

Reports

A streamflow simulation model which would reproduce the essential feature of the hydrologic regime of a semi-arid region, in this case Jordan, was developmed and described. The model is intended to fit conditions which exist in such a region. The hydrologic processes components which represent the evaporation and the base flow distinguish the Jordan model from others. Development of each function of the model and its constants was based on all the minimal amount of data available. one year of data was used to calibrate the model for Wadi Zerqa watershed. The model was then applied to simualte four years …

Hydraulic Tests On Model Of Manifold Of The Pumps Of The 1974 Extension Of The Yorktown Power Station With All Combinations Of One And Two Branches Taken Out Of Operation, Roland W. Jeppson, Calvin G. Clyde, Charles Kincaid

Reports

Introduction: A description of the fabrication of the manifold model and the design of the facilities constructed to test the model under various steady state flow conditions is given in the previous report. All tests included in the last report were with equal flows occurring in each of the five branches. Since the operation of the prototype manifold will necessitate that one, and possibly two pumps, be taken out of operations when the demand for cooling water is at a minimum, Browth & Root, Inc. requested taht the performance of the manifold model be determined under steady-state conditions with: (1) …

Head Losses Due To Ring-Tite Filament Wound Elbows And Tees And Frictional Losses In Pipes Of Polyvinylchloride, Roland W. Jeppson

Reports

This study consists of collecting and analyzing experimental data to determine the Darcy-Weisbach friction factor for 6-inch and 4-inch PERMASTRAN® pipes and the head losses due to RING-TITE filament-wound 6-inch 90° elbows, a 6 x 6-inch tee under several modes of operation, and a 6 x 6 x 4-inch tee with the flow entering a 6-inch branch and leaving through the 4-inch branch. The test program consisted of 8 series of individual tests with each series giving data for flow rates for each series ranging from 150 gpm to either 1200 gpm or 1500 gpm depending upon the series. The …

Computer Simulation Of The Hydrologic And Salinity Flow Systems Within The Bear River Basin, Robert W. Hill, Eugene K. Israelsen, J. Paul Riley

Reports

Accompanying the increased use of water resources is an increases accumulation of chemical pollutants. Te prevent degradation of the water resources beyong useful limits, pollution inputs from additional uses must be quite accurately predicted prior to implementation of the new use. The model described in this report was formulated to provide the required predictive capability for the Bear River Basin. Modeling concepts of the hydrologic system are based upon the development of basin relationships describing the hydrologic processes which are linked together by the countinuity-of-mass principle. The salinity flow system is then linked to the hydrologic system based on the …

Hydrologic Inventory Of The Bear River Study Unit, Frank W. Haws

Reports

Purpose and Scope of Study.

The 1963 Utah State Legislature authorized the Utah Water and Power Board (now the Utah Division of Water Resources) to develop a state water plan in order to give coordination and direction to the activities of all state and federal agencies concerned with Utah's water resources. To facilitate the development of this plan, a proposal was submitted through the State Planning Coordinator in the Governor's Office to the Urban Renewal Administration of the Housing and Home Finance Agency. Funding was approved effective May 19, 1966, under the Urban Planning Assistance Program authorized by Section 701 …

Sorption Kinetics Part Ii: Modeling Longitudinal Concentration Profiles In A Packed Bed Reactor, David W. Hendricks

Reports

A mass balance simulation model for sorption in a packed bed reactor was developed. All of the terms in the model, consisting of constants of the porous media, and functions, were evaluated by independent laboratory studies. The kinetic term was determined in Part I. Two numerical schemes (an explicit scheme and an implicit scheme respectively) with corresponding computer programs were developed and made operational. They were not tested against laboratory column results due to long times necessary on the computer and corresponding high costs. Laboratory testing consisted of measuring column profiles for six different packed columns at different flow rates …

A Study Of Water Institutions In Utah And Their Influence On The Planning, Developing, And Managing Of Water Resources, Frank W. Haws

Reports

Preface: For the purposes of this study an institution is defined as a formal framework or organization through which men pool their efforts and resources to accomplish specific purposes. Included in this framework is the pattern of organization and authority, the legal structure and the governmental rules and regulations that must be adhered to during the process of reaching the stated goals. The institutions related to water resources are many and varied and include: political governments (state, county, city, etc.); subdivisions of government created by legislative consent such as irrigation districts, special improvement districts, metropolitan water companies (a department in …

Effects Of Baffles On The Performance Of Anerobic Waste Stabilization Ponds, Stephen B. Nielson, E. Joe Middlebrooks, Donald B. Porcella

Reports

The performance of three baffled model ponds was monitored and compared to the performance of an unbaffled model pond utilizing four hydraulic and organic loading rates. All four ponds were operated simultaneously under the same environmental conditions using a synthetic wastewater.

Removal of organic carbon by the biological system in the different pond configurations only varied from 94-98 percent at the longest detention time (15 days); however, a considerable effect of the baffling was observed at the lower detention times. At a hydraulic detention time of 1.5 days the percent carbon removal was 53, 60, 62, and 70 percent for …

Ecological Implications Of Dimethyl Mercury In An Aquatic Food Chain, Lawrence P. Kolb, Donald B. Porcella, E. Joe Middlebrooks

Reports

Laboratory studies indicate dimethyl mercury may be a major product of microbial methylation of inorganic mercury. Although another methylation product, monomethyl mercury, has been extensively studied, the physical, chemical, and biologicl factors affecting the transport and food chain distribution of dimethyl mercury have remained unclear. This report presents results of laboratory studies of volatilization rates from water as a function of temperature and mixing conditions, uptake kinetics and equilibrium concentrations in algae,

Bibliography Of Latin American Agricultural Production And Development. Volume I: Inputs And Outputs In Crop And Livestock Production, Allen Lebaron, Samuel Daines, Percy Aitken, Ruby Johnson, Angeles Ely

Reports

No abstract provided.

Modeling The Eutrophication Process: Workshop Proceedings, P. H. Mcgauhey, E. B. Welch, C. A. Rock, J. D. Krull, D. P. Larsen, H. T. Mercier, K. W. Malueg, D. D. Huff, J. F. Koonce, W. R. Ivarson, P. R. Weiler, E. H. Dettmann, R. F. Harris, G. D. Cooke

Reports

No abstract provided.

Bibliography Of Latin American Agricultural Production And Development. Volume Ii: General Agricultural Planning, Background, And Statistical Studies, Allen Lebaron, Samuel Daines, Percy Aitken, Ruby Johnson, Angeles Ely

Reports

No abstract provided.

A Review Of Utah Water Research Laboratory, Utah Water Research Laboratory

Reports

No abstract provided.

Interregional Planning Of Water Resources Allocations By Systems Analysis Approach , John E. Keith, Jay C. Andersen, Alton B. King, Mark H. Anderson, Calvin G. Clyde, Daniel H. Hoggan

Reports

No abstract provided.

Effects Of Temperature On The Toxicity To The Aquatic Biota Of Waste Discharges - A Compilation Of The Literature, E. Joe Middlebrooks, M. J. Gaspar, R. D. Gaspar, J. H. Reynolds, Donald B. Porcella

Reports

An extensive compiliation and general evaluation of the literature is presented which describes the temperature interaction with toxicity. Recent literature is summarized and made accessible along with a few generalized relationships such that researchers may design studies in a manner that will increase the utility of their results. A detailed indexing system is employed which makes the information contained in the report accessible by author, toxicant, and text organism. Summary tables of the most pertinent literature are also presented for easy subject retrieval. It was concluded that very little uniformity in experimental design is found between experiments on temperature-toxicity relationships, …

Sorption Kinetics Part I: A Laboratory Investigation Of Six Proposed Rate Laws Using Batch Reactors, David W. Hendricks, Laxman G. Kuratti

Reports

Six proposed rate equations for sorption kinetics have been investigated by laboratory batch experiments involving some 270 individual “runs” to determine sorption uptake with time for varying conditions of initial sorbate concentration, temperature, and sorbent species. The sorbate selected was rhodamine-B dye, used because it will sorb readily and is easily measured. Two sorbents, Dowex 50 resin, and Filtrasorb 200 activated carbon were used. Temperature conditions were 10, 20, 30, and 40°C, and concentrations ranged from .0008 to 400 micrograms per ml, rhodamine-B. Analysis of data was computer automated, requiring as input only test conditions, instrument readings, dilutions, and corresponding …

The Economic Efficiency Of Inter-Basin Agricultural Water Transfers In Utah: A Mathematical Programming Approach, John E. Keith, Jay C. Andersen, Calvin G. Clyde

Reports

The economic efficiency of water development in Utah, including transfer systems, has seldom been examined, not has the costs of public policies which result in deviations from efficient allocations. In order that public officials be better informed about water allocations, the present effort examines the efficient allocation of water in time frames up to 2020 under several alternative assumtions and calculates that cost of alternative policies. Using mathematical programming techniques, a computer model is developed to determine the supply (marginal cost) and demand (value or marginal product) relationships for agricultural water, given depletions for municipal and industrial (M&I) and wetland …

Integrated Measurement Of Soil Moisture By Use Of Radio Waves, Duane G. Chadwick

Reports

An integrated value of soil moisture can be determine dby measuring the attenuation of vertically-polarized surface radio waves taht are propagated over the ground between a transmitting and receiving atenna. Soil moisture values in the root-zone region were measured over longitudinal distances typically ranging from 50 feet to 600 feet with good results. Integrated soil moisture measurements over greater distances are also possible. Received field strength of propaged radio surface waves closely matches theoretical calculations. The measurement is easily made and does not disturb the soil. Dense, green vegetation, such as alfalfa or corn, causes errors in measurement accuracy. Less …

Social, Economic, Environmental, And Technical Factors Influencing Water Reuse, A. Bruce Bishop, Suravuth Pratishthananda, John Keith, Craig Colton, A. Berry Crawford

Reports

A growing population together with rising per capita income has resulted in increased demand for water for virtually all uses. At the same time there has been increased public concern for maintaining the quality of streams for recreation, sight-seeing, and other social uses, and to conserve environmental values. A partial answer to these conflicts in water use and management is more extensive waste water reclamation and reuse. Heretofore, water salvage and reuse has been mainly practiced in specific operational cases, such as recycling industrial process water, or on an ad hoc basis, such as a series of diversions and subsequent …

The Demand For Agricultural Water In Utah, Mark H. Anderson, Jay C. Andersen, John E. Keith, Calvin G. Clyde

Reports

Water is recognized as an essential element in Utah's agricultural economy. It is the subject of much controvery and litigation and yet most discussion of the subject is based on opinions and prejudice rather than upon the basis of sound scientific evidence. This paper attempts to provide some of the economic information necessary for sound decisions in the development and use of Utah's water resources with respect to agriculture. Utah has been divided into ten drainage regions (hydrologi subregions) and the presently irrigated and potentially irrigable land according to land class were estimated for each country or portion of a …

A Preliminary Model Of The Hydrologic-Sociologic Flow System Of An Urban Area, Wade H. Andrews, J. Paul Riley, Craig W. Colton, George B. Shih, Malcolm B. Masteller

Reports

This report describes the first phase of a larger study which is directed toward the development of a general technique for analyzing and solving urban metropolitan hydrologic problems through a joint consideration of both the physical and social dimensions. This report is limited to the preliminary work of identification of social variables, the first steps in assigning mathematical values to them, and developing a mathematical format for these variables. In addition, the physical-hydrologic system is identified for purposes of clarifying the elements in that system. The ultimate objective of the entire study is directed toward discovering a theoretical and generally …

A Nonparametric Solution For Finding The Optimum Useful Life Of Equipment, Barry T. Stoll

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

It is often the case that equipment used by industry must be replaced with new equipment from time to time either because frequent malfunctions make it too costly to repair, or because the equipment has simply worn out. The new equipment often has the nature of either malfunctioning soon after installation due to manufacturing defects, or functioning for an extended period of time because it is free of these defects. For this reason, equipment is often given a preliminary running called the burn-in which gives no useful output but merely tests for manufacturing defects. Also, after a given amount of …

A Monte Carlo Comparison Of Nonparametric Reliability Estimators, Jia-Jinn Yueh

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

It is very difficult to construct a reliability model for a complex system. However, the reliability model for a series configuration is relatively simple. In the simplest case in which the components are mutually independent, the system reliability can be represented as follows:

R_s(x) = ∑ⁿ_i=1R_i(x),

where R_i is the reliability for the i^th component. It is also known that for moderate levels of system reliability for large systems, the component reliability must be high.

Extreme Value Theory indicates that under very general conditions, the initial form of the distribution function …

Utah Science Vol. 33 No. 3, September 1972

Utah Science

Utah agriculture is never static-editorial Doyle J. Matthews 71

Wildlife notes 72, 96

Getting answers from Utah's salt desert, Lois M. Cox 73

Iron deficiency- causes and consequences, Arthur Mahoney and Deloy G. Hendricks 75

New irrigation method saves water, but it's expensive, R. J. Hanks and Jack Keller 79

Water rights and zoning restrictions, Darwin B. Nielsen 83

Soils of the Wasatch valleys, LeMoyne Wilson and A. R. Southard 85

What you've wanted to know about lawns- but were afraid to ask, William F. Campbell 88

Regional climatic planning- guide for Utah, E. Arlo Richardson 91

Utah tree bulletin …

Chemical Differences Between Nectar Of Onion And Competing Plant Species And Probable Effects On Attractiveness To Pollinators, Gordon D. Waller

Biology

Levels of potassium in nectar of onion, Allium cepa L., varied from 3600 to 13,000 parts per million, about ten times higher than that of nectar of competing flora tested. An open-pollinated amphidiploid derived from the interspecific cross, A. cepa x A. fistulosum L., was the only onion with nectar potassium level as low as that of competing flora, and it was more attractive to honey bees, Apis mellifera L., than was the common onion. Addition of potassium salts to sugar solutions at the rate of 1500, 3000, 4500, 6000, or 7500 parts per million potassium clearly reduced uptake of …

A Study Of The Effectiveness Of Tune-Ups In Controlling Vehicle Emissions In Salt Lake County, Howard B. Mcintosh

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Federal Government has placed stringent standards on the manufacturers of automobiles to control vehicle emissions. Few states standards have been set for used vehicles to insure the vehicle continues to meet this standard.

Studies have shown that vehicles that are properly tuned are emitting less harmful pollutants from the exhaust. Additional studies are needed to determine if cars are being adequately turned to meet exhaust emissions.

The study showed 93 per cent of the new 1971 model cars were not meeting the standard established by the Environmental Protection Agency. Eighty-seven per cent of the 1970 model cars and 83 …

Import Substitution Potentials And Marketing Policies For Forest Products In Iran, M. A. Salimi-Manshadi

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Consumption data for different forest products were calculated for nine years (1962 to 1970). Then, taking consumption as a function of per capita disposable income and population, mathematical models were developed. By regressing per capita consumption of each product on per capita disposable income and determining the corresponding coefficients, the per capita demand for the products in the target years was calculated. The total projected demand was then computed by the products of per capita consumption and population in the target years.

Through regression analysis the future import of forest products was projected, and import substitution possibilities were discussed.

Finally, …

Relative Rates Of Return To Controlled Irrigation Among Classes Of Summer Paddy In The Guayas Basin, Ecuador, Percy G. Aitken

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The primary objective of this study was to examine rice production methods with special emphasis on farm and water irrigation management practices in the different rice farm types of the Guayas Basin of Ecuador. To do this, farmers were divided into eight categories on the basis of farm practices, seasonal farming, irrigation facilities and level of mechanization. Profits per hectare ranged from 4,807 to 762.10 sucres per hectare. Mechanization varied from totally mechanized to total absence of machinery. Year round farming varied to seasonal farming. Average production varied from 110 quintals of hulled rice to 20 quintals per hectare.

The …

Individual Family Contribution To Paper Pollution In Cache County, Carroll Porter Latham

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Paper waste discarded by families of five persons in Cache County was studied for two seven-day periods. The sample consisted of 19 families comprised of a father who was employed full-time, a mother, and three children living at home. A background questionnaire was administered to each family for the purpose of describing the sample.

Sample families were given (1) plastic bags for storing of paper wastes and (2) bathroom tissue, the unused portion of which was collected with the other paper discards. The weight of all paper discards was tabulated for each family and an average was tabulated for families …

The Use Of Soil-Cement As A Highway Material, Vongchai Jarernswan

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Soil-Cement is not a new material; its low cost but high quality make it well-known and the use of this material for highway, dam, and airfield purposes increases every year. The origin of the idea of mixing soil and cement to produce a structural material has not been definitely established; informal records show that mixing soil and cement was tried in Iowa, Ohio, Texas and probably in other places by 1920 (1). Since the first controlled soil-cement construction was carried out near Johnsonville, South Carolina in 1935 (2), soil-cement has been considered a valuable engineering material. It is now an …