Access
Partner
UNT Libraries Government Documents Department
288
Oklahoma Historical Society
225
UNT Libraries
111
UNT Libraries Special Collections
39
Dublin Public Library
30
Sterling Municipal Library
27
Brownwood Public Library
26
Texas Southern University
20
Hoston History Research Center at Houston Public Library
15
UNT Oral History Program
11
96 More
Collection
Texas Digital Newspaper Program
410
Tocker Foundation Grant
249
Office of Scientific & Technical Information Technical Reports
238
Oklahoma Digital Newspaper Program
233
UNT Theses and Dissertations
84
The Oklahoma City Times
42
Chickasha Newspaper Collection
30
Altus Times-Democrat
28
University Photography Collection
28
Brownwood Bulletin
26
143 More
Degree Department
Degree Discipline
Degree Level
Country
States
Year
Month
Language
1,146 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
1,146
next
Fundamental theory of elastic wave scattering by defects in elastic materials: integral equation methods for application to ultrasonic flaw detection
The use of ultrasonic methods in nondestructive testing depends on the interpretation of the scattering of sound waves by flaws. The theory of elastic waves and their scattering in non-uniform media is developed in detail from first principles, and in generality. Both integral equation and differential methods are discussed, with emphasis on the former. General methods for defining scattering cross sections are presented, and conservation theorems are noted. The Born Approximation to the integral equation is presented, and computed results for several experimental situations are discussed. Several corrections to papers in the literature are made, and in particular the exact scattering of a transverse wave by a spherical flaw is compared with the Rayleigh (long wave) limit.
Date:
May 1, 1976
Creator:
Gubernatis, J.E.; Domany, E.; Krumhansl, J.A. & Huberman, M.
Object Type:
Report
System:
The UNT Digital Library
An Overview of Pool-Type LMFBRs : General Characteristics
This report describes the results of a study conducted by a "Pool Study Group" organized at ANL in mid-1975 to examine the present state of the air of design of pool-type LMFBRs. The study concentrated on examination of various design options used to date in the principle pool-type projects and design studies in this country and abroad, including the Phenix and Super-Phenix reactors (France), PFR and CFR (U.K.), RN-600 (U.S.S.R.) and EBR-II (U.S.A.). The objective of the report is to provide a step toward better understanding of the pool-type system and of the advantages and disadvantages of the various possible approaches to its design.
Date:
May 1976
Creator:
Amorosi, A.; Hutter, E.; Marciniak, T. J.; Monson, H. O.; Seidensticker, R. W. & Simmons, W. R.
Object Type:
Report
System:
The UNT Digital Library
Predicted Heat-Transfer Performance of an Evacuated Glass-Jacketed CPC Receiver : Countercurrent Flow Design
The heat-transfer performance of an evacuated glass-jacketed CPC-receiver facility, free on one end and fixed onto the glass jacket at the other, was carried out using heat-transfer relationships and the best information available in the literature. Specifically, the collector examined was a 3x-CPC facility, 8 ft long, with an entrance aperture 4.5 in. wide covered with a single glass cover, and provided with an aluminum reflecting surface (rho = 0.88). To maximize heat retention, a selectively treated receiver surface, epsilon = 0.11, was used. The optical efficiency of this CPC collector facility was calculated to be eta₀ = 0.536.
Date:
May 1976
Creator:
Thodos, George
Object Type:
Report
System:
The UNT Digital Library
The Atomic Spectrum of Neptunium
A description and interpretation of the atomic spectrum of neptunium are given. Wavelengths were measured for 6096 spectrum lines in the range 3793 to 38,812 cm⁻¹ (26,353 to 2575 A), of which 2526 were classified as transitions between 329 odd levels and 130 even levels of neutral neptunium (Np I). The data are presented in five tables.
Date:
May 1976
Creator:
Fred, Mark; Tompkins, Frank S.; Blaise, Jean E.; Camus, Pierre & Vergès, Jean
Object Type:
Report
System:
The UNT Digital Library
High-Performance Batteries for Off-Peak Energy Storage and Electric-Vehicle Propulsion, Progress Report: January-March 1976
Quarterly report describing the research and management effort of Argonne National Laboratory's program on lithium/metal sulfide batteries during the period January-March 1976. These batteries are being developed for energy storage on utility networks and for electric-vehicle propulsion. The present cells are vertically oriented, piismatic cells with a central positive electrode of FeS or FeS; and two facing negative electrodes of lithium-aluminum alloy, and an electrolyte of molten LiCl-KC1. The cell operating temperature is 400-450C.
Date:
May 1976
Creator:
Nelson, P. A.; Ivins, R. O.; Yao, N. P.; Battles, J. E.; Chilenskas, A. A.; Gay, E. C. et al.
Object Type:
Report
System:
The UNT Digital Library
Application of Frequency-Modified Life Approach to the Low-Cycle Fatigue Behavior of Type 304 Stainless Steel
The application of the frequency-modified life equation to fatigue life prediction has been critically examined using the extensive fatigue data generated for Type 304 stainless steel at 1100 degrees F under a variety of cyclic-loading conditions. The parameters that enter into the frequency-modified life equation vary with strain rate and show a transition coinciding with the frequency of cycling at which a change in the fracture appearance from predominantly transgranular to predominantly intergranular failure mode or vice versa occurs. The accuracy in life prediction is improved when the effect of strain rate on life-predictive parameters is considered. It is shown how the effect of compressive and symmetric hold time on fatigue life can be taken into account. A comparison between the frequency-modified life approach of Coffin and the damage-rate approach recently developed by Majumdar and Maiya is also made to show the importance of wave-shape on low-cycle fatigue life.
Date:
May 1976
Creator:
Maiya, P. S. & Majumdar, S.
Object Type:
Report
System:
The UNT Digital Library
Use of Krypton-85 for the Detection of Pinhole Failures in GCFR Cladding
Radioactive krypton-85 is used as a tracer to detect pinhole failures in GCFR cladding. High-purity helium (99.99% pure) that contains 0.3 ppm krypton-85 is used to pressurize the tubular test specimens, and a Geiger-Mueller counter is used to detect the krypton-85 in the helium environmental gas as it leaves the test chamber. Under the least favorable conditions of temperature and specimen pressure, it is estimated that the smallest pinhole failure that could be detected within 60 sec would have an orifice diameter of 0.0102 cm. Using lead shielding around the Geiger-Muller counter to reduce background radiation, the electronics associated with the krypton-85 detector will terminate a biaxial creep test at krypton-85 activity levels above 20 counts/minute.
Date:
May 1976
Creator:
Yaggee, F. L.; Purohit, A. & Poeppel, R. B.
Object Type:
Report
System:
The UNT Digital Library
Development of Lithium/Metal Sulfide Batteries at Argonne National Laboratory : Summary Report
Overview of the battery program at Argonne National Laboratory being developed for use as energy storage devices for load-leveling on electric utilities and as power sources for electric automobiles.
Date:
May 1976
Creator:
Nelson, P. A.
Object Type:
Report
System:
The UNT Digital Library
Baseline Energy Consumption Forecasts for Transportation: A Review and Evaluation
A baseline projection of energy consumption is needed to estimate the potential energy savings from proposed transport technology and operational improvements. The Reference Energy System projection by Brookhaven National Laboratories and that which Stanford Research Institute produced for Gulf Oil are reviewed here. Attention is focused on the growth rate assumptions of the forecasts and the allowances made for the sensitivity of transport demand and technological efficiency to fuel price changes. The alternative trajectories of energy use are examined for automobile, bus and intercity air and rail passenger travel, and also for freight movement. Little, if any, justification can be found for many of the assumptions used to estimate transport demand and energy intensiveness. The assumptions underlying the Brookhaven National Laboratories projections are more explicit on changes in energy efficiency and energy price and shifts in transport patterns. However, the relationship of automobile travel, the largest component, to energy price is not specified clearly. The Stanford projection is based on seemingly arbitrary assumptions about changes in travel patterns and energy efficiency with no reference to the market process which must bring them about. It is concluded that the Brookhaven projection is a reasonable interim benchmark. Its structure should improve by …
Date:
May 1976
Creator:
Koppelman, Frank; O'Sullivan, Pat & Collum, Tom
Object Type:
Report
System:
The UNT Digital Library
Bibliography for Transportation Energy Conservation
A listing is given of 578 reports, books, articles, and conference papers on transportation and energy. Coverage is primarily on U. S. developments and research from 1970 to 1975. Following a section of citations of general works on energy, the bibliography contains two main parts: ''Energy for Transportation'' and ''Transportation of Energy.'' Within each of these topics the arrangement is multimodal (at the urban, regional, national, or international level), then by mode. Selected information sources are listed in the last part. Within each section, entries are arranged alphabetically by author or, lacking an author, by title. References were drawn from the Transportation Center Library collection and other libraries in the Northwestern University system. An earlier bibliography, Transportation and Energy, compiled by the Transportation Center Library in March 1974, forms the basis for the arrangement and provides coverage from 1970 to 1973.
Date:
May 1976
Creator:
Northwestern University (Evanston, Ill.). Transportation Center. Library.
Object Type:
Report
System:
The UNT Digital Library
Development of a prototype high temperature amplifier for geothermal well logging. Final report
A high temperature amplifier for use in geothermal well logging was developed. This development was based on the use of ceramic vacuum tubes as the active circuit element, since these tubes have the capability to operate in the high ambient temperature environment. The primary goal of this program was to design, build, and deliver a prototype amplifier capable of continuous operation in a 250/sup 0/C environment. A development program designed to meet this goal covered four phases. These phases were (1) development of the basic circuit configuration with conventional, low cost glass envelope vacuum tubes; (2) modification of the circuitry to accommodate the ceramic vacuum tubes; (3) a 1000-hour duration temperature cycle (48 hours at 260/sup 0/C and 2 hours at 20/sup 0/C); and (4) development of a prototype, deliverable amplifier. The following sections discuss the high temperature amplifier development program. Section 2 describes the amplifier performance, including design requirements, circuit design, development program, and the prototype amplifier. Section 3 presents test results from two breadboard models, one with conventional glass tubes and one with ceramic tubes, and the prototype amplifier. Section 4 describes the operation of the prototype amplifier. Circuit equations used for analysis and tube characteristics are contained …
Date:
May 1, 1976
Creator:
Cannon, W.
Object Type:
Report
System:
The UNT Digital Library
A study of the effects of personality, subculture and place of residence on college student recreation participation
The problem of this investigation was to determine whether knowledge of student personality, subculture, or place of residence could predict university student recreation participation for men and women. Factors of age, marital status, class in college, and Greek affiliation were also examined for any relationship to recreation participation of university men and women.
Date:
May 1976
Creator:
Winfrey, William E.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The state of the art in environmental pollution control and impact analysis
This study analyzes federal and state pollution control and abatement legislation and provides a one-volume working explanation of those laws applicable to business operations. This analysis is limited to legislation aimed at controlling air and water pollution, and solid waste management.
Date:
May 1976
Creator:
Thibodeaux, Mary Shepherd
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Factors affecting the activity of cyclopropane synthetase in Lactobacillus plantarum
This investigation concerned determining certain factors which affect the activity of cyclopropane synthetase in L. plantarum. In vitro experiments showed the enzme to be sensitive to ionic strength and subject to product inhibition by S-adenosylhomocysteine nucleusidase, which relieves this inhibition by degrading SAH to adenine and ribosylhomocysteine.
Date:
May 1976
Creator:
Halper, Laura A.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Captain Stormfield character in the published and unpublished works of Mark Twain
Captain Stormfield, the main character in Mark Twain's last book, Extract from Captain Stormfield's Visit to Heaven (1909), appears numerous times--under either the Stormfield name or some other--in Twain's published and unpublished works. Scholar's since Train's death have given only passing or slight notice to the Stormfield character. His numerous appearances, however his pivotal function among several unfinished works, and his essential optimism must lead to an awareness of his significant role in Twain's fiction.
Date:
May 1976
Creator:
Hanicak, Helen
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Reforming the Church of England, 1895-1919
This study deals with the events after 1895 which led to a major reshaping of the Church of England's policy and organization in 1919. Those events, which included debates in Parliament, a Royal Commission, Prayer Book revision, special Church committees, and Private negotiations by Church leaders, finally resulted in the British Parliament passing the Enabling act of 1919. Significant persons and powerful influences were at work during these years to prevent, as well as promote change in the Established Church. This study will show what those influences were, and discuss persons significant in their work for or against reform.
Date:
May 1976
Creator:
Zimmerman, John D.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Sex-related roles, attitudes, and orientation of Negro, Anglo, and Mexican-American women over the life cycle
The focus of this study is the relationship among (1) attitudes toward sex-based differentiation in adult leisure activities and socialization of boys and girls, (2) attitudes toward housekeeping, and (3) combinations of marital, maternal employment, and head of household statuses among Negro, Anglo, and Mexican-American women in three age categories and from two socio-economic levels.
Date:
May 1976
Creator:
DeRidder, Joyce A.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The acceptance of an inventory of program objectives for a community college mental health technology program within the social and behavioral science structure
The study sought acceptance of an inventory of program objectives for a community college mental health technology program within the social and behavioral science structure. It adapted a set of program objectives, using an inventory from the Southern Regional Education Board, and provided composite list stated in competency or performance levels and a list of academic requirements showing what fundamental areas of competency or performance would be most germane for a mental health technology candidate.
Date:
May 1976
Creator:
Weber, Marvin Glenn
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An investigation of the effects of an inner-city student teaching experience on the attitudes, values, and dogmatisms of student teachers
The purposes of the investigation were (1) to determine whether differences in attitudes, values, an dogmatisms exist between volunteers for an inner-city student teaching experience and other student teachers prior to a student teaching experience; (2) to determine whether differences in attitudes, values, and dogmatisms exist at the completion of student teaching between the experimental group and a control group composed of student teachers assigned to suburban schools.
Date:
May 1976
Creator:
Sughrue, Robert L.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Contingent reinforcement as an intervention to alter depressive thinking
The problem of this study is to determine the feasibility of using an operant treatment procedure to ameliorate several manifestations of depression. The purpose is to apply contingent positive reinforcement to the detection of nondepressive thoughts and to examine the effects of this procedure upon the frequency of nondepressive thoughts, idiosyncratic depressive manifestations, and scores on the Depression Inventory.
Date:
May 1976
Creator:
Gairing, Robert L.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A comparison of the effects of two mathematics programs upon selected fifth, sixth, seventh, and eighth grade remedial mathematics students
The problem with which this investigation was concerned is that of determining whether remedial mathematics students who receive individualized attention in small groups with many special materials would gain more knowledge in the areas of computation, concepts, problem solving, and total composite mathematics than would remedial mathematics students taught as sub-groups of regular mathematics classes.
Date:
May 1976
Creator:
Blankenship, William Lee
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A descriptive analysis and evaluation of an orientation course designed for junior college students
This study was a descriptive analysis of the orientation program for a large junior college in the Dallas/Fort Worth Metroplex. Its purposes were (1) to describe the freshman orientation course, (2) to analyze data compiled from rating forms which recorded student perceptions of each aspect of the course, and (3) to discuss the implications of the data for junior college student service personnel as they attempt to establish programs that will effectively aid students in making a successful adjustment to college.
Date:
May 1976
Creator:
Dickson, Mary Jane Ramsey
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Music as idea and image in English Romantic poetry
This study is an investigation of the relationships between music and the poetry of Wordsworth, Coleridge, Byron, Shelley, and Keats. Particularly it focuses on the nature of their musical subject matter and musical imagery in order to determine the extent to which they were influenced by aesthetic and philosophical musical theory, generally termed speculative music.
Date:
May 1976
Creator:
Coffman, Sue E.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Quantum size oscillations and size effects
The direct current size effect and the radio frequency size effect oscillation in the magnetoconductivity have been explained by a semiclassical theory which is based on the matching of the sample thickness and the classical spiral orbit of the electron about a magnetic field.
Date:
May 1976
Creator:
Garlow, John R.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library