Physical Sciences and Mathematics Commons^™

The Influence Of Soil Moisture Regimes And Atmospheric Environments On Transpiration And The Energy Status Of Water In Plants, Sampatrao A. Gavande

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Plant responses to different soil moisture regimes have been extensively studied. Because of interactions between the soil, plant and climatic factors, few convincing generalizations concerning the influence of soil water on the transpiration of water by plants have been established. Generally single factors or at most the interaction of two have been studied at any one time. Useful theories describing the conditions of water retention in plant tissues and movement of water through plants have been proposed. Equally useful theories have been suggested for describing the retention and transmission of water in soil. The integration of these theories and their …

Simultaneous Movement Of Water And Herbicides In Unsaturated Soils, Ming-Shyong Yang

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Since weed killers were developed in the early part of the decade beginning in 1940, herbicides have been increasing in use until they are now widely used to control weeds. The application of herbicides has thus become a regular agricultural and ecological practice.

Simultaneous Flow Of Heat And Water In Plant Tissue, Gaylon Sanford Campbell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Although biological phenomena may be partially described in a general way without the use of mathematics and physics, the experimental results may be more meaningful if they are analyzed on the basis of physical and mathematical laws. The complexity of biological systems has made the application to them of mathematics and physics rather difficult, and only recently has much progress been made. Although it has yet been possible to describe only a few simple biological systems by actual equations, a great deal of qualitative information may be obtained by applying physics and mathematics. Russell (1960, p. 439) said

In principle …

The Influence Of Organic Matter And Ph On Transformations Of Nitrites To Elemental Nitrogen, Mohammad A. Rashid

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nitrogen occupies an important and prominent place in plant and animal nutrition. Large quantities are required by plants and must be available in the soil. Recently the use of nitrogenous fertilizers has increased manyfold. In view of the importance of this element in crop production, even greater use is anticipated in the coming years. In order to make full use of the applied nitrogen, continued investigations of soil-nitrogen relationship are imperative; however, this element presents many complex and challenging problems to investigators.

Movement Of Phosphorus In Soils As Influenced By Chelates And Soil Types, Abd-Elmonem Sayed-Ahmad Mostafa

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The problems of phosphate fertilization have attracted the attention of agronomists, nutritionists, and other biological scientists due to the importance of phosphorus in animal and plant nutrition. However, the fundamental behavior of phosphorus in soil systems is not well understood. Because of its far-reaching effects, a solution of a portion of this problem is of importance.

The Course Or Behavior Of Applied Zinc To Soil Containing Different Levels Of Freshly Applied Organic Matter, Artnel Samuel Henry

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Soil organic matter consists of a heterogenous mixture of plant, animal, and microbial material in various stages of decomposition. It possesses characteristics which at present are not very well known. Careful studies have been directed towards the behavior of organic matter as it affects plants directly and man indirectly. Consequently, much tire is devoted to its study from the point of metal inactivation and chelation, the earlier investigations failed to produce results worthy of the efforts expended, so a loss of interest in the continued pursuit of knowledge resulted, about two decades ago when it was learned that many polyvalent …

Nature Of Non-Biological Decomposition Of Nitrite In Acid Media, Mukkatira Kariappa Mahendrappa

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Curiosity is the cause of investigations, and the thirst for knowledge originates from it. Many times at the end of investigations, the number of questions raised are greater than those for which answers are sought. Therefore, all the information gathered through scientific investigations may not be of value for immediate application in practical life. Nevertheless, no research can be considered less important than the other because the integration of several scientific findings considered less less important at the time of investigation may reveal something of very high significance. Similarly, the study of various transformation reactions that the added fertilizers undergo …

Stage-Fall-Discharge Relations For Flood Flows Over Highway Embankments, Gaylord V. Skogerboe, M. Leon Hyatt, Lloyd H. Austin

Reports

At Utah State University, considerable effort has been devoted to the analysis of submerged flow at open channel constrictions. A method of analyzing submerged flow was first developed for a trapezoidal flume by Hyatt (1965). Later studies verified the method of analysis for a rectangular flume (Skogerboe, Walker, and Robinson, 1965) and Parshall flumes (Skogerboe, Hyatt, England, and Johnson, 1965). Because of the previous findings, it was felt this method of analyzing submerged flow could be applied to highway embankments.

A highway embankment is a form of broad-crested weir when overtopped by flood waters. Being a weir, the flood discharge …

Modifications To Gate-Flume Structures On The Weber Davis Canal, Gaylord V. Skogerboe, M. Leon Hyatt

Reports

The turnout structures under study divert flows from the Weber-Davis Canal near Clearfield, Utah. A portion of the canal in this area was realigned as a result of the construction of the Interstate Highway System. The twin turnout structures, used to divert water to the West Branch Irrigation Company and West Layton Irrigation Company, were constructed in conjunction with the realignment of the concrete -lined canal.

A three-dimensional drawing of the twin turnout structures is shown in Fig. 1. Water is diverted from the canal by passing under the discharge diverted through each of the structures is approximately 35 cfs …

Discrimination In Housing In Utah, Utah State Advisory Committee

Elusive Documents

No abstract provided.

Utah: A Guide For Teaching Social Studies, Fourth Grade, Della W. Mcclellan, Floyd Sucher

Elusive Documents

No abstract provided.

Measuring Water With Parshall Flumes, Gaylord V. Skogerboe, M. Leon Hyatt, Joe D. England, J. Raymond Johnson

Reports

Preface: As the value of water increases, the extent to which measurement is employed in an irrigation system also increases. Additional flow measurements provide information for improved management of the water supply. Good water management requires accurate measurement. Many devices have been developed for this purpose and are in use. Included among them are weirs, orifices, calibrated gates, Parshall flumes, and current meters. Of these, the Parshall flume is one of the most widely accepted and used. Presented in this publication is a discussion concerning the use of Parshall flumes for measuring water, including the utilization of a new approach …

Rating Flow Regulation Structures In The Bear River Canal System, Gaylord V. Skogerboe, Winford M. Barrus, Lloyd H. Austin

Reports

Introduction.

The Bear River Canal System (Fig. 1) is located below Cutler Reservoir in Box Elder County, Utah. The average annual quantity of water conveyed through the canal system is approximately 230,000 acre-feet. Any water not consumptively used in this area eventually flows in to Great Salt Lake.

Utah Power and Light Company has the rights to the waters stored in Cutler Reservoir for operating a hydroelectric plant. The irrigation distribution system below the reservoir is operated and maintained by the Utah-Idaho Sugar Company. The water is delivered to the water users through the distribution system and a nominal maintenance …

Application Of Electronic Analog Computer To Solution Of Hydrologic And River Basin Planning Problems: Utah Simulation Model Ii, J. Paul Riley, Duane G. Chadwick, Jay M. Bagley

Reports

As demands upon available water supplies increase, there is an accompanying increase in the need to assess the downstream hydrologic system. At Utah State University this problem is being approached by electronic analog simulation of the hydrologic system. Modeling concepts are based upon the development of basic relationships which describe the various hydrologic processes. Within a system, these relationships are linked by the continuity -of-mass principle which requires a hydrologic balance at all points. Once established, the model is applied to any particular geographic unit by determining the appropriate constants of the hydrologic equations. The analog computer is ideally suited …

Mathematical Hydraulics Of Surface Irrigation, Cheng-Lung Chen

Reports

The general hydrodynamic equations for a spatially varied unsteady flow in a prismatic open channel having an arbitrary cross-sectional shape can be derived from the equations of continuity and momentum. The assumptions based on the general concept of hydrodynamics and the theory of shallow water is introduced. The mathematical models in the surface irrigation can be formulated by these equations of motion with the appropriate initial and boundary conditions prescribed at the singularity point (the origin in the x, t-plane) and at x = 0. Therefore, the flow in the surface irrigation must be described by solving the boundary-value problem …

Estimating Evaporation And Evapotranspiration From Climatic Data, Jerald Emmet Christiansen

Reports

No abstract provided.

Laboratory Investigations Of Submerged Flow In Selected Parshall Flumes, M. Leon Hyatt, Gaylord V. Skogerboe, Keith O. Egglestron

Reports

No abstract provided.

Subcritical Flow Over Various Weir Shapes, M. Leon Hyatt, Gaylord V. Skogerboe, Lloyd H. Austin

Reports

Submerged flow exists for any given structure when a change in flow depth downstream from the structure causes a change in flow depth upstream from the structure for any given constant value of discharge. The two flow depths, normally measured when submerged flow exists, consist of a depth upstream from the structure, which is used also for free flow conditions, and a depth of flow located any place downstream from the structure. The initial studies in which the submerged flow analysis was developed were made on flat-bottomed flumes (Hyatt, 1965; and Skogerboe, Walker, and Robinson, 1965). Later studies verified the …

Proceedings Of A Summer Institute In Water Resources: Volume 4 - General Principles Of Water Resources Planning, Aaron Wiener, P. Zusman, W. R.D. Sewell, Harvey O. Banks

Reports

Foreward: Recognizing the need for training of individuals to meet the rapidly rising problems connected with water resources development, Utah State University, with National Science Foundation support, organized a Summer Institute in Water Resources for college teachers. it was hoped that participants carefully selected from all regions of the country would receive additional insight and stimulation to improve and enlarge water resources training programs at their own institutions. Thus, the accelerated dissemination of such knowledge on a national scale could be facilitated. Realizing further that the key to a successful institute of this nature lay in the excellence of its …

Proceedings Of A Summer Institute In Water Resources: Volume 1 - Philosophical, Institutional, And Legal Aspects Of Water Resources, Cleve H. Milligan, Charles E. Corker, Wayne D. Criddle

Reports

Foreward: Recognizing the need for training of individuals to meet the rapidly rising problems connected with water resources development, Utah State University, with National Science Foundation support, organized a Summer Institute in Water Resources for college teachers. it was hoped that participants carefully selected from all regions of the country would receive additional insight and stimulation to improve and enlarge water resources training programs at their own institutions. Thus, the accelerated dissemination of such knowledge on a national scale could be facilitated. Realizing further that the key to a successful institute of this nature lay in the excellence of its …

Evaluation Of Free And Submerged Flow Data For Large Parshall Flumes, M. Leon Hyatt, Gaylord V. Skogerboe

Reports

Because the accurate measurement of water plays such an important part in water management, such structures as weirs, orifices, calibrated gates f and flumes have been developed. These structures provide the means for reasonable measurement of the smaller flows (1: .. 100 cfs), but for the large flows (100-3,000 cfs) the current meter, large Parshall flume, and various other flumes are commonly used. Where a permanent structure is required, the most widely accepted and utilized method for measurement of large flows is probably the Parshall flume. The purpose of this report has been to collect the existing flow data for …

Hydrologic Instrumentation And Telemetering, Duane G. Chadwick

Reports

The following report discusses the various phases of work carried out by the Utah State University under a cooperative agreement contract with the Soil Conservation Service for the period extending from June 1965 to June1966.

The body of the report discusses instrumentation techniques employed for the remote telemetering of total precipitation and water content of snow. Discussion of performance of a new type pressure pillow is also given for measuring the water content of snow. Data taken during system evaluation is presented in the Appendix.

Central Utah Project Ultimate Phase: Inventory Of Available Data, Bureau Of Reclamation

Elusive Documents

The plan for the Central Utah project involves a diversion of water from streams in the Uinta Basin in the Upper Colorado River Basin to the closed Bonneville Basin in Central Utah and other associated water resource developments in both basins. Construction of the initial phase of the project was authorized by the Colorado River Storage Project Act of April 11, 1956 (70 Stat. 105).

The ultimate phase will expand on the initial phase development. Its purpose will be to increase the transbasin diversion to the Bonneville Basin and to provide water for replacement and additional use in the Uinta …

Evaluation Of Chemical Composition And Particle Size Gradation Of Evaporation-Reducing, Monolayer-Forming Materials, Vaughn E. Hansen, Gaylord V. Skogerboe

Reports

Initial field testing began shortly after the arrival of materials in August, 1964. The field experiments were designed to evaluate the effects of the long-chain alcohol C20 and particle size gradation on the effectiveness of evaporation retardants when applied by aerial techniques. The materials which were tested at Utah Lake are listed below.

Bear River Project First Phase Idaho And Utah (Appendix A), United States Department Of The Interior, Bureau Of Reclamation

Elusive Documents

By means of storage reservoirs, distribution works, and water exchanges, the Bear River project, first phase, would increase the usable water supply of Bear River below Bear Lake and its Cache Valley tributaries, Cub River, Mink Creek, for irrigation, municipal and industrial uses, and fish and wildlife propagation. Project reservoirs would also provide recreation and flood control benefits. The Project would have main stem and East Cache segments.

Bear River Project First Phase Idaho And Utah (Appendix E), United States Department Of The Interior, Bureau Of Reclamation

Elusive Documents

The following report presents estimates of the value of irrigation and of the ability of water users to pay for irrigation water supplied from the development of the Bear River project. A general description of the existing agricultural economy and projections as to future economic conditions with development of the project are also presented in this study. The economic analysis of the Bear River project has been accomplished in accordance with Reclamation Instructions and directives concerning the preparation of feasibility reports. Irrigation payment capacity by the water users, expressed in dollars and cents, was accomplished through the farm budget method …

Bear River Project First Phase Idaho And Utah (Appendix B), United States Department Of The Interior, Bureau Of Reclamation

Elusive Documents

By means of storage reservoirs, distribution works, and water exchanges, the Bear River project, first phase, would increase the usable water supply of Bear River below Bear Lake and its Cache Valley tributaries, Cub River and Mink Creek, for irrigation, municipal and industrial uses, and fish and wildlife propagation. Project reservoirs would also provide recreation and flood control benefits. The jroject would have main stem and East Cache segments.

Bear River Project First Phase Idaho And Utah (Appendix C), United States Department Of The Interior, Bureau Of Reclamation

Elusive Documents

The project lands of the Bear River project (first phase) have been classified with respect to their suitability for sustained crop production under irrigation development. This appendix to the feasibility report is a presentation of the investigations and results of these land classification studies.

The land classification surveys were conducted for the purpose of locating and delineating by proper land class and subclass the areas of arable land which could be served under the proposed project facilities. To accomplish this objective, all lands were given a thorough examination. including intensive field and laboratory tests. Following the final selection of the …

Graphical Solutions To Frequently Encountered Fluid Flow Problems, Roland W. Jeppson

Reports

Introduction

Graphical methods are often used by engineers to solve frequently used or complex formulas which require trial and error solutions. Perhaps the best known graphical tool used by the engineer is the slide rule, but anyone familiar with its use will recognize its limitations both in time and accuracy. For many problems which involve many repetitive computations high speed digital or analog computers are the most effective tools for solution. There are, however, many problems requiring considerable engineering time for slide rule solutions where solutions are not justifiable on computers. The use of nomograms for such problems is desirable. …

Decision Problems, Lowell Anderson

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

From an intuitive point of view the notion of effective procedure consists of a set of rules or instructions that enables one, in a finite number of steps and in a purely mechanical way, to answer yes or no to any one of a given class of questions. This procedure requires no intelligence to carry out the instructions and, in fact, it is con­ceivable that some mechanical contrivance may be constructed to carry out these instructions. Should such an effective procedure exist, that answers either yes or no, then the group of problems in question is said to be effectively …