Digital Commons Network^™

Comparison Of Model High-Latitude Electron Densities With Millstone Hill Observations, Jan Josef Sojka, Robert W. Schunk, J. V. Evans, J. M. Holt, R. H. Wand

All Physics Faculty Publications

Model predictions of the diurnal variations of plasma convection velocities and electron densities in the high-latitude ionosphere were compared with Millstone Hill incoherent scatter radar observations for an equinox day on which there was moderate magnetic activity. On the observation day, three major morphological features were evident at 500 km, including a dayside high density region, a nightside mid-latitude trough, and a region of slightly enhanced densities in the auroral zone. Although the dayside high density region was due to solar EUV radiation, it was not symmetrical about local noon (1000-1900 LT sector) owing to the effect of horizontal transport. …

Role Of D Functions In Ab Initio Calculation Of The Equilibrium Structure Of H2s–Hf, Steve Scheiner

Chemistry and Biochemistry Faculty Publications

Full geometry optimizations are performed to determine the equilibrium geometry of the hydrogen‐bonded complex H₂S–HF. The angle between the plane of the H₂S moiety and the H‐bond axis calculated with the 4–31 G basis set is 106° as compared to the experimental value of 91±5°. This quantity is reduced significantly when d orbitals are added to the basis set, yielding an angle within experimental error of 91°. (AIP)

Field Spectroscopy In The Food Production Chain, E. J. Brach

Food Structure

This paper reviews the application of field spectroscopy in the food production chain, particularly how field spectroscopy aids research and production of agricultural crops , and helps to understand the process of converting these crops into food.

The review discusses the nondestructive application of field spectroscopy such as ultraviolet, reflective , visible, near infrared and fluorescence techniques using conventional or laser light sources, to determine qualitative and quantitative properties of agricultural crops and produce.

Field spectroscopy can provide data on soil constituents and moisture, crop maturity, crop vigor, crop health, variety, variety within crops , and protein and moisture content …

Food Microstructure

Food Structure

No abstract provided.

Characteristics Of Thermal And Suprathermal Ions Associated With The Dayside Plasma Trough As Measured By The Dynamics Explorer Retarding Ion Mass Spectrometer, Jan Josef Sojka, Robert W. Schunk, J.F. E. Johnson, J. H. Waite, C. R. Chappell

All Physics Faculty Publications

The retarding ion mass spectrometer (RIMS) instrument on Dynamics Explorer 1 has carried out high-altitude measurements of the polar wind. During an outbound pass through the outer plasmasphere and plasma trough at 0900 LT the RIMS instrument measured the detailed characteristics of the thermal and suprathermal ions. Three distinct populations were observed: (1) thermal ions (H⁺ and He⁺) with densities ranging from > 500 ions/cm³ to < 1 ion/cm³, temperatures around 2 eV (20,000° K), and H⁺/He⁺ density ratios of 2 to 4, (2) warm anisotropic plasma with densities ranging from 2 to 12 ions/cm …

Monitoring Of Groundwater Levels For Real‑Time Conjunctive Water Management, Richard C. Peralta, Vince Mazur, Paul Dutram

Civil and Environmental Engineering Faculty Publications

Water users in the Arkansas Grand Prairie wish to maintain sufficient groundwater levels to: insure adequate groundwater reserves for time of drought, protect themselves from litigation caused by wells going dry, and insure a sustained yield. Achievement of these goals requires regular measurement of groundwater levels. Review of monitoring practice and technology indicates that spring and fall measurements taken over the entire area using steel tape and acoustic device is preferred for most long range planning. Continuous monitoring is indicated for critical parts of the region where saturated thicknesses are small. Desirable attributes of a data collection/transmission system for such …

Index Construction For Multiple Objective Analysis Of Land And Water Use In A High Mountain Watershed, L. Douglas James, Dean T. Larson, Mac Mckee, Jay J. Messer, Thomas M. Twedt, Randy Sperger, Barbara D. Campion, Frank J. Nemanich, Donald B. Porcella, Herbert H. Fullerton

Reports

Comprehensive planning is an elusive ideal. The practical planner must sort the relevant information from the vast amounts of data that modern technology can collect. The objective of this study was to use the Upper Blackfoot watershed in the mountains of Southeastern Idaho as an arena for developing methods for construction, refinement, and application of indices needed to design land and water management schemes, compare alternatives, and influence the public in their uses of the area. A total of 21 uses were examined on 242 land units of a 160 square-mile area ranging in elevation from 6300 to 9000 feet …

A Preliminary Quantification Of The Impacts Of Aspen To Conifer Succession On Water Yield Within The Colorado River Basin (A Process Aggravating The Salt Pollution Problem), Gerald F. Gifford, William Humphries, Richard A. Jaynes

Reports

Heat pulse velocity techniques were developed for effectively monitoring water movement in aspen (Populus ttremuloides), subalpine fir (Abies lasiocarpa), and Englemann spruce (Picea engelmannii). Once the techniques were perfected, transpiration was monitored in replicated trees of each species for one year. This data was used to modify the plant activity index and the crop coefficient for each species within the model ASPCON, a deterministic, lumped-parameter model describing the hydrology of aspen to conifer succession. Results of the modeling indicate 18.5 cm(7.3 in) net loss of moisture available for stream flow when spruce replace aspen, and a loss of 7.1 cm …

Conjunctive Water Use Planning With Water Quality Constraints In Tooele Valley, Utah, Bhasker Rao K., Calvin G. Clyde, Rangesan Narayanan

Reports

The need for more efficient water management is gaining recognition due to the increased cost of water supply, the growth in the demand for water, and greater environmental and social impacts of water programs. "Conjunctive use" of surfact and groundwater resources provides opportunities for increasing net benefits to the water users. Past "conjunctive use" studies, however, have usually not included water quality constraints. In Tooele valley, Utah, spatial variation of groundwater qualtity (total dissolved solids) is significant. The areas of good (400-500 mg/1), fair (500-1,000 mg/1), and poor (1,000-3,000 mg/1) quality groundwaters were identified in an earlier study by the …

Reconnaissance Of Sediment-Phosphorus Relationships In Some Utah Reservoirs, Jay J. Messer, Jean M. Ihnat

Reports

Introduction: Phosphorus inputs to lakes and reservoirs from tributary streams and non-point sources are well-known contributors to nuisance algal growths that degrade water quality for potable and recreational uses in lakes and reservoirs. However, phosphours inputs to the euphotic zone may also occur from within the lake itself, as a result of releases from both oxic and anoxid sediments. Such releases may originate from phosphorus inputs to a lake or reservoir during high runoff periods in the previous winder or spring, or they may represent phosphorus trapped in the sediment many years earlier, when phosphorus contributions from natural or anthropogenic …

Polycyclic Aromatic Hydrocarbons: Are They A Problem In Processed Oil Shales?, David L. Maase, V. Dean Adams

Reports

Organic residues from processed oil shales were characterisized with specific attention to polycyclic aromatic hydrocarbons (PAH). Oil shale development in the White River Basin (Utah and Colorado) was projected and hydrological and geological parameters pertinent to estimations of polycyclic aromatic hydrocarbons (PAH) flux were focused. Oil shale samples from the Union B, Paraho, and Tosco II processes were extracted by using organic solvents in a soxhlet apparatus and by mixing shale samples with water (characterization in

Impediments To Effective Interactions Between Multipurpose Water Districts And Other Governmental Institutions In Urbanizing Areas, Jay M. Bagley, Frank W. Haws, Wendell B. Anderson, Daniel H. Hoggan, Lee Kapaloski

Reports

Water institutions are highly diffused throughout society. These institutions interact with one another in various ways. As water needs and services expand, collaborative and cooperative arrangements are commonly sought as a means of meeting common goals of providing a safe, dependable adn least cost water supply to particular constituencies. Of the many different institutions involved in the development, managment, distribution, and use of water, perhaps the most significant in terms of extensive interactions with other institutions is the kind that is typified by Water Conservancy Districts and Metropolitan Water Districts in Utah. The statutory and operating framework of counterpart organizations …

Aquatic Resources Management Of The Colorado River Ecosystem, V. Dean Adams, Vincent A. Lamarra

Reports

The Colorado River system has often been referred to as "the most regulated river system in the world." The Colorado River Basin serves millions of people through agricultural, energy, municipal and industrial uses, fish and wildlife activities, and recreation. The symposium was conceived and organized to allow researchers, private industry, consultants, water users, regulatory agencies, and concerned citizens the opportunity to express needs, desires, and concerns about the vast resources of the Colorado River. We found that there were a diverse number of problems confronting the individuals who are involved in the management of this important ecosystem. A variety of …

Hydrologic Evaluation Of The Coastal Belt Water Project Sarir And Tazerbo Well Fields, Libya, Edward P. Fisk, Christopher J. Duffy, Calvin G. Clyde, Roland W. Jeppson, Phillip H. Degroot, Bhasker Rao K., Win-Kai Liu

Reports

Executive Summary: The basic purpose of this study was to conduct a finite-element computer model and give an dindependent appraisal of the reliability of the groundwater supply for the proposed Coastal Belt Water Project (CBWP_ Well Fields at Sarir and Tazerbo. There is no doubt that ample quantities of groundwater of acceptable quality occur at the sites selected for these well fields for the estimated 50-year life of the project and longer. Of major concern is the predicted drawdown of wells and total pumping lifts throughout the 50-year period. Excessive drawdowns could cause operating costs to become prohibitibely expensive. Average …

Potential Use Of Arkansas River Water For Irrigation In The Plum Bayou Watershed, Richard C. Peralta, Paul W. Dutram

Civil and Environmental Engineering Faculty Publications

No abstract provided.

Estimated Potential Water Needs For The Eastern Grand Prairie Region By Irrigation Scheduling, Richard C. Peralta, Paul W. Dutram, Paul Killian

Civil and Environmental Engineering Faculty Publications

Prepare maps showing the annual, monthly and peak weekly volume of irrigation water required in each 3 mile by 3 mile cell of the study area for the selected cropping pattern. Maps are presented for "average" and "dry" climatological conditions.

Evaluation Of Low-Temperature Geothermal Potential In Cache Valley, Utah, Janet L. De Vries

All U.S. Government Documents (Utah Regional Depository)

The purpose of this research was to continue the assessment of the low-temperature geothermal resources of Cache Valley, Utah initiated by the Utah Geological and Mineral Survey under U.S. Department of Energy (DOE) contract DE-AS07-77ET 28393. Field work consisted of locating 90 wells and springs throughout the study area, collecting water samples for later laboratory analyses, and field measurement of pH, temperature, bicarbonate alkalinity, and electrical conductivity. Na+, K+, Ca+2, Mg+2, SiO2, Fe, SO4-2, C1-, F-, and total dissolved solids were determined in the laboratory. Temperature profiles were measured in 12 additional, unused wells. Thermal gradients calculated from the profiles …

Progress Report For The Dairy Research Advisory Board, Various Authors

Other Documents

No abstract provided.

Religion And Economic Development In Utah, 1847-1900, L. Dwight Israelsen

Economic Research Institute Study Papers

When Mormon settlers arrived in the Great Basin in the summer of 1847, the region was still Mexican territory notable mainly for its iso1ation--1,OOO miles to the nearest markets--and for its inhospitable environment. The economic isolation of Utah ended with the completion of the transcontinental railroad in 1869. During the interim, the Mormons developed a regional economic system which coined and printed its own medium of exchange, engaged in "foreign trade" with the "States," dealt with balance-of-payments problems, assimilated large numbers of immigrants, and began the process of economic development. The affairs of this regional commonwealth were directed by Brigham …

Studies Of Selected Predators Of Black Grass Bugs (Labops Hesperius Uhler And Irbisia Brachycera Uhler) On Ranges Of Utah, Jaime Eduardo Araya

Biology

The activity of selected arthropod predators on both immature and adult black grass bugs, Labops hesperius Uhler and Irbisia brachycera Uhler, in infested Utah ranges was investigated. Adult Nabis alternatus was found to the most important predator of black grass bugs, especially in early spring, when nabids were the most abundant predaceous species. Immature nabids consumed the bugs but because of their smaller size they preyed mostly on leafhoppers, smaller plant bug nymphs and other immature nabids. A shortwinged species of Nabis (probably N. vanduzeei) showed good potential as a predator of adult Labops and Irbisia in laboratory feeding tests. …

Factors Determining The Abundance And Distribution Of Rodents In A Shrub-Steppe Ecosystem: The Role Of Shrubs, Robert R. Parmenter

Biology

This study addressed the relative importances of shrub "resources" on a rodent community in a sagebrush dominated shrub-steppe ecosystem in southwestern Wyoming. Direct effects of shrubs (i.e., providing rodents with "food and cover") were assessed by removing shrubs from a 1.25 ha study plot and monitoring both rodent populations and their food resources. Shrub-related "food and cover" was found to be unimportant to deermice (Peromyscus maniculatus), Great Basin pocket mice (Perognathus parvus), northern grasshopper mice (Onychomys leucogaster) and Uinta ground squirrels (Speromphilus armatus), as shrub removal caused no significant changes in population sizes, sex ratios or age structure. Least chipmunks …

Utah State University Commencement, 1982 – Main Campus, Utah State University

Commencement Programs

Eighty-Ninth Annual Commencement of Utah State University

A Revision Of The North American Species In The Genus Euodynerus (Hymenoptera: Eumenidae), Ali Shallan Moalif

Biology

Twenty-eight species of Euodynerus Dalla Torre are recognized from the Nearctic Region, of which one is Holarctic. Literature on the biology of fourteen species is reviewed and new biological information discussed for four species. The phylogenetic relationships of the genus Euodynerus to other genera and the classification and relationships of the species of Euodynerus are discussed. Seven subgenera are recognized of which four are new: Euodynerus, Pareuodynerus Bluethgen, Leucodynerus Bohart, Annodynerus new subgenus, Gonodynerus n. subgenus, Holodynerus n. subgenus and Plecodynerus n. subgenus. Their comparative morphology, phylogeny, and distribution are discussed. Larval instars of E. hidalgo (Saussure), E. scutellaris (Saussure), …

Factors Affecting The Expression Of Resistance In The Sugarbeet To The Sugarbeet Root Maggot Tetanops Myopaeformis (Von Röder), Glenn G. Mahrt

Biology

This study was initiated to determine some of the biological and environmental factors affecting the expression of resistance in beet breeding lines to the sugarbeet root maggot. Findings will help to define the most appropriate conditions for testing and provide a better understanding of the mechanisms involved in resistance. Laboratory and field studies were conducted to (1) determine the effect of plant age, soil type, soil nutrition, and soil moisture on larval development and oviposition; (2) determine the effects of these conditions on the expression of resistance; and (3) search for possible morphological or physiological root characteristics related to plant …

Marital Satisfaction As It Related To Agreement On Money Matters And Money Management Competence Among Utah State University Married Students, Carol S. Young

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The primary purpose of this study was to investigate the relationship between marital satisfaction, agreement on money matters, and money management competence among married couples at Utah State University . A sample of 43 student couples responded to a written questionnaire designed to measure the three variables. On all three variables measured, high scores indicated that both spouses rated themselves high on marital satisfaction, agreement on money matters, and money management competence. A positive relationships was found to exist between the four correlations, the strongest for both partners being marital satisfaction with agreement on money matters. The correlation, marital satisfaction …

Inhalant Use Among Native American Adolescents: A Comparison Of Users And Nonusers At Intemountain Intertribal School, John L. Wingert

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The objective of this study was to investigate a population of identified inhalant users at Intermountain Intertribal School, comparing and contrasting two user groups to a control group of nonusers on a number of selected research variables. The subjects included 42 identified inhalant users. Subjects were further classified into two user groups: one-time users and repeat users, and 20 nonusers. The nonuser group comprised the control group. Each subject was individually interviewed and administered the research and data collection instruments. In addition, other essential information was taken from permanent school records.

A one-way analysis of variance was computed to ascertain …

Evaluation Of The Perceived Usefulness And Effectiveness Of Psychoeducational Testing Reports At Intermountain Intertribal School, Marvin Bryce Fifield

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

By law and according to conventional practice. individual psychoeducational testing is an essential part of the identification and placement process of handicapped students. However, evidence reported in the literature suggests that testing results, especially in the form of testing reports, are rarely fully utilized.

This study was conducted at Intermountain Intertribal School at Brigham City, Utah and demonstrated a method of collecting objective data about the use of psychoeducational testing reports as well as the opinions and suggestions of staff members who used them. More specifically, this study documented:

1. Who the primary users of testing reports were and for …

The Writing And Production Of A Series Of Mini-Documentary Radio Programs On Animal Control And Care In Logan, Camille Cornish-Dryden

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

Human beings have for ages domesticated animals which they have kept for companionship as pets. Originally man and his animals lived on scattered farms and ranches where pets had plenty of room to roam. As human social structures changed and people crowded into towns and cities, the matter of controlling one's pets in order to prevent their becoming the neighbor's pests became a serious concern. Next to fights over water rights in the west, perhaps the most frequent cause for contention was the control of one's pets.

Evaluation Of Low-Temperature Geothermal Potential In Cache Valley, Utah, Janet L. De Vries

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this research was to continue the assessment of the low-temperature geothermal resources of Cache Valley, Utah initiated by the Utah Geological and Mineral Survey. Field work consisted of locating 90 wells and springs throughout the study area, collecting water samples for later laboratory analyses, and field measurement of pH, temperature, bicarbonate alkalinity, and electrical conductivity. Na⁺, K⁺, Ca⁺² , Mg⁺² , SiO₂, Fe, SO₄^-2, Cl^-, F^-, and total dissolved solids were determined in the laboratory.

Temperature profiles were measured in 12 additional, …

Visual Assessment Of Rivers And Marshes: An Examination Of The Relationship Of Visual Units, Perceptual Variables And Preference, John C. Ellsworth

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this research was to examine the relationship of two approaches to visual assessment of landscape--the qualitative descriptive inventory and the theoretically-based empirical perceptual preference approach. Three levels of landscape visual units based on bio-physical similarities (landscape units, setting units, and waterscape units) were identified in a marsh (CUtler Reservoir, Cache County , Utah), and its tributary streams. Color slide photographs were taken from five of the visual units. These slides were rated on a 5- point scale by panels of judges for the expression of four perceptual variables--coherence, complexity, mystery, and legibility. The same slides were rated …