Partner
UNT Libraries Government Documents Department
680
Oklahoma Historical Society
492
UNT Libraries
129
Sterling Municipal Library
82
Carl Albert Congressional Research and Studies Center
61
UNT Libraries Special Collections
33
Deaf Smith County Library
28
San Antonio College
22
Burleson Public Library
19
Abilene Christian University Library
17
64 More
Collection
Office of Scientific & Technical Information Technical Reports
563
Oklahoma Digital Newspaper Program
554
Texas Digital Newspaper Program
431
The Oklahoma City Times
186
UNT Theses and Dissertations
96
Lawton Constitution
95
Tocker Foundation Grant
92
Chickasha Newspaper Collection
90
The Baytown Sun
82
University of Oklahoma Student Newspapers
61
121 More
Degree Department
Degree Discipline
Degree Level
States
Year
Month
Language
1,815 Matching Results
Results open in a new window/tab. Unexpected Results? Search the Catalog Instead.
Results:
1 - 24 of
1,815
next
The Relationships Among Organizational Communication Structures and Learning Outcomes in College Level Basic Communication Courses
Based on linear models, this study demonstrated that the psychological and social structures of the classroom, viewed as a naturalistic human system, impact learning outcomes. To operationalize learning outcomes, final grades in the course and a subject self report scale tapping perceptions of utility of material taught were used. The social and psychological structures of the classroom-as-a-human-system were operationalized through the following variables: the degree of social integration of each student, based on network analytic procedures; communication apprehension of students; dimensions of perceived credibility of instructors; dimensions of interpersonal attraction to instructors; perceived satisfaction with task demands of the course; and adjusted orientation to communication, based on communication apprehension scores and network data. Data were obtained from five sections of a multi-section communication course of a large state institution of higher learning in the southwestern region of the United States. Differences in sex were not found.
Date:
December 1982
Creator:
Cook, John A. (John Acklee)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effects of Nondirective and Paradoxical Therapist Communication on Core Therapeutic Conditions and Perceived Client Influence
The purpose of this study was first to determine whether or not paradoxical communication could be designed to contain therapeutic levels of the core therapeutic conditions, and, second, to determine how paradoxical counselor communication compared to nondirective communication on the social influence dimensions of attractiveness, expertness, and trustworthiness. For the first phase, four judges rated audiotapes on the level of the core therapeutic conditions on one of four counseling conditions (paradox high or low on core conditions, and nondirective high or low on core conditions). For the second phase, 133 undergraduate college students were asked to listen to the four counseling conditions on audiotapes and to rate the counselor on the social influence dimensions
Date:
August 1982
Creator:
Beard, Myron Joseph
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Perceptual Impact of Basic Communication Fidelity and Nationality Upon Selected Group Interaction Variables
The purpose of this study was to investigate the impact of basic communication fidelity (BCF) upon the perceptions of national observers toward national and international communicators across a variety of group interaction variables. Research is presented which indicates that (1) international students are typically perceived less favorably than national students across a variety of interpersonal variables; (2) as BCF increases, more favorable ratings are attributed to communicators across interpersonal variables; and (3) increased BCF may be able to mitigate the less favorable impressions national observers attribute to international communicators.
Date:
August 1982
Creator:
Lowry, David N. (David Neil)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Statistical theory of field fluctuations in a reversed-field pinch
A statistical description of three-dimensional, incompressible turbulence in an ideal, current-bearing, bounded magnetofluid is given both analytically and numerically. Our results are then compared with existing data taken from reversed-field pinch experiments.
Date:
January 1, 1982
Creator:
Turner, L.
Object Type:
Article
System:
The UNT Digital Library
Inertial-confinement-fusion applications of ion-stopping theory
Methods were developed to calculate: (1) the stopping power of a hot plasma target, (2) the charge-state of a fast ion projectile, and (3) the final disposition of the deposited energy. The first issue refers to the stopping power for protons. The proton stopping power is altered in high-density or high-temperature targets, especially at velocities below the stopping peak. The second issue concerns the application of a proton stopping curve to the arbitrary projectile. The third topic is more specialized to inertial fusion and concerns the partition of deposited energy between ion (nuclear motion) degrees of freedom and those corresponding to bound and free electrons. The question here is whether a thermal equilibrium plasma is produced.
Date:
January 22, 1982
Creator:
More, Richard M.; Lee, Yim T. & Bailey, David S.
Object Type:
Article
System:
The UNT Digital Library
Stochastic cooling of bunched beams from fluctuation and kinetic theory
A theoretical formalism for stochastic phase-space cooling of bunched beams in storage rings is developed on the dual basis of classical fluctuation theory and kinetic theory of many-body systems in phase-space. The physics is that of a collection of three-dimensional oscillators coupled via retarded nonconservative interactions determined by an electronic feedback loop. At the heart of the formulation is the existence of several disparate time-scales characterizing the cooling process. Both theoretical approaches describe the cooling process in the form of a Fokker-Planck transport equation in phase-space valid up to second order in the strength and first order in the auto-correlation of the cooling signal. With neglect of the collective correlations induced by the feedback loop, identical expressions are obtained in both cases for the coherent damping and Schottky noise diffusion coefficients. These are expressed in terms of Fourier coefficients in a harmonic decomposition in angle of the generalized nonconservative cooling force written in canonical action-angle variables of the particles in six-dimensional phase-space. Comparison of analytic results to a numerical simulation study with 90 pseudo-particles in a model cooling system is presented.
Date:
September 1, 1982
Creator:
Chattopadhyay, S.
Object Type:
Report
System:
The UNT Digital Library
Consolidation Theory and Its Applicability to the Dewatering and Covering of Uranium-Mill Tailings
This report is a review and evaluation of soil consolidation theories applicable for evaluating settlement during dewatering and subsequent covering of uranium-mill tailings. Such theories may be used to predict both consolidation and water flow related effects in uranium-mill tailings during drainage, following sluicing into burial pits. A consolidation theory to be useful must consider the effect of time-dependent loads, nonhomogeneous soil mass, nonlinear variation of soil properties with the stress-state parameters, large strain, and saturated and unsaturated flow. Constitutive relations linking the stress-deformation-state variables with void ratio should be adopted for predicting both consolidation and fluid-flow interaction in unsaturated uranium-mill tailings.
Date:
November 1, 1982
Creator:
Gates, T.E.
Object Type:
Report
System:
The UNT Digital Library
Stress-point algorithm for a pressure-sensitive multiple-yield-surface plasticity theory
A pressure-sensitive multiple-yield-surface plasticity theory is presented for application to the multi-dimensional cyclic response of soil media. A stress-point numerical algorithm is developed as the basis of a computer module designed to interface with large-scale finite element computer programs used at LLNL.
Date:
March 1, 1982
Creator:
Hughes, T.J.R.
Object Type:
Report
System:
The UNT Digital Library
Theory of the optimal design of straight-axis minimum-B mirror confinement configurations
The design of modern straight-axis linked-mirror plasma-confinement configurations involves a balance between many competing requirements. The dipole and quadrupole components of magnetic induction required in one confinement region often do not match onto the fields of an adjacent region without complications that seriously affect particle drifts or confinement stability. Here, the relevant factors are set down together with the techniques for analytical optimization of the design of a general configuration. A general sufficient condition for the stability of an arbitrary guiding-center MHD equilibrium is derived. This condition makes explicit the stabilizing qualities of good normal curvature and diamagnetic axial current. The instability drive depends on two terms: one carries the sign of normal curvature and the other relates to the relative signs of geodeics curvature and geodesic torsion. The theory is applied to low-beta, large-aspect-ratio equilibria for which analytic expressions for the confining magnetic fields are known. Two optimizations are required to specify the arbitrary features of the quadrupole and dipole fields. One optimization is nonlinear and can be performed by the ordinary calculus of variations; the second optimization is linear and subject to the rules of game theory. Appropriate quality factors are obtained, thus giving the designer quantitative measures …
Date:
July 6, 1982
Creator:
Hall, Laurence S.
Object Type:
Report
System:
The UNT Digital Library
Education Through Alienation: Elements of Gestaltist Learning Theory in Selected Plays of Bertolt Brecht
This study explored the relationship between the dramatic and the educational theories developed by Bertolt Brecht and selected twentieth-century theories of pedagogy. A survey of Brecht's life and works revealed that although the stimulus-response theories of the associationist psychologists were inappropriate to Brecht's concepts, the three principal aspects of Gestaltism—perception, insight, and life space, as formulated by Max Wertheimer, Kurt Koffka, Wolfgang Kohler, and Kurt Lewin—seemed profoundly related to Brecht's concern with man's ability to perceive and to learn about his environment. Brecht strove to create perceptual images of historical environments. The characters, who represented various ideologies and philosophies in situations which stimulated insightful learning, struggled with life spaces that accurately resembled life outside the theatre. Thus, Brecht utilized elements of the theories of perception, insight, and life space in his dramas as he strove to force his audiences to perceive the characters' environments, to grasp the significance and relationships between the characters' environments and their own social milieu, and to recognize those influences in one's life space which attract or repel the individual. The study also suggested that Brecht's works might be amenable to empirical study.
Date:
December 1982
Creator:
Starnes, Ted Duncan
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Development of model reference adaptive control theory for electric power plant control applications
The scope of this effort includes the theoretical development of a multi-input, multi-output (MIMO) Model Reference Control (MRC) algorithm, (i.e., model following control law), Model Reference Adaptive Control (MRAC) algorithm and the formulation of a nonlinear model of a typical electric power plant. Previous single-input, single-output MRAC algorithm designs have been generalized to MIMO MRAC designs using the MIMO MRC algorithm. This MRC algorithm, which has been developed using Command Generator Tracker methodologies, represents the steady state behavior (in the adaptive sense) of the MRAC algorithm. The MRC algorithm is a fundamental component in the MRAC design and stability analysis. An enhanced MRC algorithm, which has been developed for systems with more controls than regulated outputs, alleviates the MRC stability constraint of stable plant transmission zeroes. The nonlinear power plant model is based on the Cromby model with the addition of a governor valve management algorithm, turbine dynamics and turbine interactions with extraction flows. An application of the MRC algorithm to a linearization of this model demonstrates its applicability to power plant systems. In particular, the generated power changes at 7% per minute while throttle pressure and temperature, reheat temperature and drum level are held constant with a reasonable level …
Date:
September 15, 1982
Creator:
Mabius, L.E.
Object Type:
Report
System:
The UNT Digital Library
Implications of Electronic Mail and Message Systems for the U.S. Postal Service
A study by the Office of Technology Assessment (OTA) that looks at how "advances in technology and increased competition in the communications marketplace will significantly affect USPS finances, service levels, and labor force requirements over the next two decades" (p. xi).
Date:
August 1982
Creator:
United States. Congress. Office of Technology Assessment.
Object Type:
Report
System:
The UNT Digital Library
Updated version of the DOT 4 one- and two-dimensional neutron/photon transport code
DOT 4 is designed to allow very large transport problems to be solved on a wide range of computers and memory arrangements. Unusual flexibilty in both space-mesh and directional-quadrature specification is allowed. For example, the radial mesh in an R-Z problem can vary with axial position. The directional quadrature can vary with both space and energy group. Several features improve performance on both deep penetration and criticality problems. The program has been checked and used extensively.
Date:
July 1, 1982
Creator:
Rhoades, W. A. & Childs, R. L.
Object Type:
Report
System:
The UNT Digital Library
Self-dual Yang-Mills as a totally integrable system
The characteristics of a totally integrable system for the self-dual Yang-Mills equations are pointed out: the Parametric Bianchi-Baecklund transformations, infinite conservation laws, the corresponding linear systems, and the infinite dimension Kac-Moody algebra.
Date:
January 1, 1982
Creator:
Chau, L. L.
Object Type:
Article
System:
The UNT Digital Library
On the Density Oscillations of a Warm Particle Bunch
The density oscillations of warm particle bunches is investigated theoretically. Two different mathematical approaches are employed to derive the basic equation describing density oscillations; one is a fluid approach and the second is a more general Green1s function formulation. The motion is analyzed in first order perturbation theory where it is shown, under the assumption of no degeneracy, that there are only stable oscillations. Second order perturbation theory gives damping of the motion. The perturbation theory is examined and a criterion is exhibited for its proper use. Thus, when the resistivity is small enough (but nonzero) then the motion is stable, but when the resistivity is large then the motion is essentially unstable with a growth rate which is that of an unbunched beam. The criterion is approximately evaluated using a model for a bunched beam.
Date:
November 1, 1982
Creator:
Channell, P. J.; Sessler, A. M. & Wurtele, J. S.
Object Type:
Article
System:
The UNT Digital Library
Standard model group, QCD subgroup - dynamics isolating and testing the elementary QCD subprocess
QCD to an experimentalist is the theory of interactions of quarks and gluons. Experimentalists like QCD because QCD is analogous to QED. Thus, following Drell and others who have for many years studied the validity of QED, one has a ready-made menu for tests of QCD. There are the static and long distance tests. These topics are covered by Peter LePage in the static properties group. In this report, dynamic and short distance tests of QCD will be discussed, primarily via reactions with large transverse momenta. This report is an introduction and overview of the subject, to serve as a framework for other reports from the subgroup. In the last two sections, the author has taken the opportunity to discuss his own ideas and opinions.
Date:
1982
Creator:
Tannenbaum, Michael J.
Object Type:
Article
System:
The UNT Digital Library
Development of a new two-dimensional Cartesian geometry nodal multigroup discrete-ordinates method
The purpose of this work is the development and testing of a new family of methods for calculating the spatial dependence of the neutron density in nuclear systems described in two-dimensional Cartesian geometry. The energy and angular dependence of the neutron density is approximated using the multigroup and discrete ordinates techniques, respectively. The resulting FORTRAN computer code is designed to handle an arbitrary number of spatial, energy, and angle subdivisions. Any degree of scattering anisotropy can be handled by the code for either external source or fission systems. The basic approach is to (1) approximate the spatial variation of the neutron source across each spatial subdivision as an expansion in terms of a user-supplied set of exponential basis functions; (2) solve analytically for the resulting neutron density inside each region; and (3) approximate this density in the basis function space in order to calculate the next iteration flux-dependent source terms. In the general case the calculation is iterative due to neutron sources which depend on the neutron density itself, such as scattering interactions.
Date:
July 1, 1982
Creator:
Pevey, R.E.
Object Type:
Report
System:
The UNT Digital Library
GUTs, SUSY GUTs and SUPER GUTs
We review the motivations for extending grand unified theories with particular emphasis on supersymmetry and its phenomenological and cosmological fallout, and comment on the relevance of quantum gravity. 67 references.
Date:
July 1, 1982
Creator:
Gaillard, M. K.
Object Type:
Article
System:
The UNT Digital Library
Application of nuclear models to neutron nuclear cross section calculations
Nuclear theory is used increasingly to supplement and extend the nuclear data base that is available for applied studies. Areas where theoretical calculations are most important include the determination of neutron cross sections for unstable fission products and transactinide nuclei in fission reactor or nuclear waste calculations and for meeting the extensive dosimetry, activation, and neutronic data needs associated with fusion reactor development, especially for neutron energies above 14 MeV. Considerable progress has been made in the use of nuclear models for data evaluation and, particularly, in the methods used to derive physically meaningful parameters for model calculations. Theoretical studies frequently involve use of spherical and deformed optical models, Hauser-Feshbach statistical theory, preequilibrium theory, direct-reaction theory, and often make use of gamma-ray strength function models and phenomenological (or microscopic) level density prescriptions. The development, application, and limitations of nuclear models for data evaluation are discussed, with emphasis on the 0.1 to 50 MeV energy range. (91 references).
Date:
January 1, 1982
Creator:
Young, P.G.
Object Type:
Article
System:
The UNT Digital Library
Higher twist contributions to lepton-pair production and other QCD processes
A general discussion of the calculations and phenomenological consequences of power-law suppressed QCD processes is given with emphasis on tests in massive lepton pair production. Absolutely normalized predictions are given for the leading twist (transverse current) and higher twist (longitudinal current) contributions to the meson structure function in the region of large x.
Date:
December 1, 1982
Creator:
Brodsky, S. J.; Berger, E. L. & Lepage, G. P.
Object Type:
Article
System:
The UNT Digital Library
Hadronic and nuclear interactions in QCD
Despite the evidence that QCD - or something close to it - gives a correct description of the structure of hadrons and their interactions, it seems paradoxical that the theory has thus far had very little impact in nuclear physics. One reason for this is that the application of QCD to distances larger than 1 fm involves coherent, non-perturbative dynamics which is beyond present calculational techniques. For example, in QCD the nuclear force can evidently be ascribed to quark interchange and gluon exchange processes. These, however, are as complicated to analyze from a fundamental point of view as is the analogous covalent bond in molecular physics. Since a detailed description of quark-quark interactions and the structure of hadronic wavefunctions is not yet well-understood in QCD, it is evident that a quantitative first-principle description of the nuclear force will require a great deal of theoretical effort. Another reason for the limited impact of QCD in nuclear physics has been the conventional assumption that nuclear interactions can for the most part be analyzed in terms of an effective meson-nucleon field theory or potential model in isolation from the details of short distance quark and gluon structure of hadrons. These lectures, argue that …
Date:
January 1, 1982
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Relationship Between Touch Behavior and Marital Satisfaction in Stable Marriages
The relationship "between touch "behavior, marital satisfaction, and touch expectation in stable marriages was explored. Subjects included couples, married a minimum of seven years, chosen at random from a community of middle-class families. Spanier's Dyadic Adjustment Scale, Jourard's Body Accessibility Questionnaire, and a touch expectation question on the data sheet were utilized to measure each subject's level of marital satisfaction, touch behavior, and touch expectation. These instruments were hand delivered to each couple and returned by mail to the experimenter.
Date:
May 1982
Creator:
Gallehugh, D. Sue (Della Sue)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Ordination and Cognitive Complexity as Related to Endogenous and Exogenous Depression
Personal construct psychology, as formulated by George Kelly (1955), contributed substantial knowledge to the study of psychopathology. The small amount of research in the area of depression has focused generally on the content of self-constructs and the cognitive complexity characteristic. The purpose of this study was to examine the construct system of the depressed patient specifically by investigating the endogenicity, exogenicity, and severity of depressive symptoms in relationship to construct content as applied to others, cognitive complexity, and ordination.
Date:
August 1982
Creator:
Angelillo, Joseph
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Radiofrequency Use and Management: Impacts From the World Administrative Radio Conference of 1979
A study by the Office of Technology Assessment (OTA) that examines the Final Acts of the General World Administrative Radio Conference (WARC-79) "in a comprehensive way-describing U.S. preparations and involvement, and the impact of the conference" (p. 3).
Date:
January 1982
Creator:
United States. Congress. Office of Technology Assessment.
Object Type:
Report
System:
The UNT Digital Library