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A Program of FRC Theory Research Annual Report
At the request of the Office of Fusion Energy, a group of experts was convened on February 6--8, 1990. This group met to assess the world data base on Reversed Field Pinch (RFP) physics, and, further, to assess the role of the ZTH experiment in providing reactor relevant physics understanding for that confinement geometry. This group met, analyzed some of the relevant literature, and heard extensive presentations on the physics of the RFP and the plans for the ZTH and RFX devices. The conclusions of this group of experts are contained in this report.
Date:
May 18, 1990
Creator:
Krall, Nicholas A.
Object Type:
Report
System:
The UNT Digital Library
[Letter from Marvin E. Edwards to Jack Davis and Bill McCarter, May 3, 1990]
Photocopy of a letter from Marvin E. Edwards, General Superintendent of Dallas ISD, to Jack Davis and Bill McCarter, co-directors of North Texas Institute for Educators on the Visual Arts. In regards to NTIEVA, for extending an opportunity for Edwards employees of Dallas to attend the discipline-based art education (DBAE) workshop. Edwards writes that their program looks beneficial in expanding the teachers art strategies, however, due to budgeting concerns they are unable to participate this year but hope they will be reached out in the future.
Date:
May 3, 1990
Creator:
Edwards, Marvin E.
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Jack Davis and Bill McCarter to Jan Schronk, May 1, 1990]
Photocopy of a letter from Jack Davis and Bill McCarter, co-directors of North Texas Institute for Educators on the Visual Arts, to Jan Schronk, Hurst-Euless-Bedford ISD, and other institute participants that are part of the team attending the summer institute conducted by NTIEVA. The summer institute will be held at the University of North Texas campus from June 11 - 29, while several other days will be spent in Dallas and Fort Worth. The teachers involved with the institute are given credits based on their academic or professional needs.
Date:
May 1, 1990
Creator:
Davis, Donald Jack & McCarter, William
Object Type:
Letter
System:
The UNT Digital Library
[Memorandum from Pat Warde to Ruby Raines, May 3, 1990]
Photocopy of a memorandum from Pat Warde, Center for Continuing Education and Conference Management, to Ruby Raines, saying that Cathy Mages just called from the Sheraton hotel concerning the special weekend pages that the hotel had put together for the people attending the program of June 1. In the memorandum, standard packages of the hotels services are described for anyone who is interested in staying with the Sheraton that evening, and to make reservations in advanced. Copied on the letter is Bill McCarter.
Date:
May 3, 1990
Creator:
Warde, Pat
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Bill McCarter and Nancy Cason to Pam Stephens, May 9, 1990]
Photocopy of a letter from Bill McCarter and Nancy Cason, North Texas Institute for Educators on the Visual Arts, to Pam Stephens. Discussing a planned a meeting for the art specialists and coordinators, such as Stephens, participating in the Institute, for Saturday May 19th, at 10:00 am, in office Room 302 of the Historical Building. At the meeting the art specialists will be responsible for presenting their commercial art packages to the Institute with the objective of promoting ways implementing art programs into existing curriculum.
Date:
May 9, 1990
Creator:
McCarter, William & Cason, Nancy
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Bill McCarter to Howard Dunn and Janice Wiggins, March 10, 1990]
Photocopy of a letter from Bill McCarter, co-director of North Texas Institute for Educators on the Visual Arts, to Howard Dunn and Janice Wiggins, Dallas ISD. Inviting Dallas Independent School District into a five year plan with NTIEVA, since their last minute implementation process prevented Dallas from becoming part of the Institute previously. Details about what is required from the district is written at the end of the letter and that McCarter will be happy to discuss further details of financial obligations.
Date:
May 10, 1990
Creator:
McCarter, William
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Bill McCarter to Raymond Nasher, May 9 1990]
Photocopy of a letter from Bill McCarter, co-director of North Texas Institute for Educators on the Visual Arts, to Raymond Nasher, The Nasher Company. Mentioning a meeting, that Nasher chaired on, which energized the entire faculty and how disappointed McCarter is, because of scheduling conflicts, that Nasher will be unable to participate in the leadership retreat scheduled for June 1. McCarter also mentions literature that he forwarded to Nasher and hopes the he understands the enthusiasm for the concepts behind the NTIEVA's projects. McCarter then mentions that Dallas I.S.D. was unable to continue as a consortium district because of finalized details, yet McCarter hopes to reactivate Dallas after meeting with Howard Dunn and conversing with Janice Wiggins. McCarter ends the letter expressing concern about funding for the Institute. Copied on the letter is Rick Brettell.
Date:
May 9, 1990
Creator:
McCarter, William
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Brenda Crawford to Jack Davis and Bill McCarter, May 31, 1990]
Photocopy of a letter from Brenda Crawford to Jack Davis and Bill McCarter, co-directors of North Texas Institute for Educators on the Visual Arts. Thanking them for inviting her to be a member of the Advisory Committee of the North Texas Institute for Educators on the Visual Arts. Brenda references a luncheon conversation between them and that the information was stimulating, she commends them for the work they've been doing and the importance it provides towards education reform and young people. She ends the note with a "Bravo," and her signature.
Date:
May 31, 1990
Creator:
Crawford, Brenda
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Jack Davis and Bill McCarter to Shelia Brown, May 1, 1990]
Photocopy of a letter from Jack Davis and Bill McCarter, co-directors of North Texas Institute for Educators on the Visual Arts, to Shelia Brown, Plano ISD. In regards to the team of teachers from the school participating in the summer institute conducted by North Texas Institute for Educators on the Visual Arts. They are enclosing information about the institute which will be held at the University of North Texas from June 11th - 29th, while several other days will be spent in Dallas and Fort Worth.
Date:
May 1, 1990
Creator:
Davis, Donald Jack & McCarter, William
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Bill McCarter to Howard Dunn, May 3, 1990]
Photocopy of a letter from Bill McCarter, co-director of North Texas Institute for Educators on the Visual Arts, to Howard Dunn, Director Fine Arts for Dallas ISD. In regards of Dallas participation in the North Texas Institute for Educators on the Visual Arts. McCarter writes that after reviewing their budget they have found that they will be able to fund one team from DISD for the first year at the Institute. After that one year they are going to discuss the re-entry of Dallas into the five year plan after discussing with the Getty Center about more funding. McCarter hopes to meet up with Dunn to discuss finer details in an upcoming meeting.
Date:
May 3, 1990
Creator:
McCarter, William
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Bill McCarter and Nancy Cason to Janice Wiggins, May 8, 1990]
Photocopy of a letter from Bill McCarter and Nancy Cason, North Texas Institute for Educators on the Visual Arts, to Janice Wiggins, Dallas ISD. Iin regards of Dallas' participation in the North Texas Institute for Educators on the Visual Arts. McCarter and Cason write that after reviewing their budget they have found that they will be able to fund one team from DISD at 100% for the first year at the Institute, yet after one year they are unsure that they'll be able to get more funding from the Getty Center to allow Dallas as a consortium. Included at the end of the letter is a mock-up of what Dallas will be entitled to during their Summer institute Services.
Date:
May 8, 1990
Creator:
McCarter, William & Cason, Nancy
Object Type:
Letter
System:
The UNT Digital Library
Research on thermophoretic and inertial aspects of ash particle deposition on heat exchanger surfaces in coal-fired equipment
The overall goal of this research in the area of ash transport was to advance the capability of making reliable engineering predictions of the dynamics and consequences of net deposit growth for surfaces exposed to the products of coal combustion. To accomplish this for a wide variety of combustor types, coal types, and operating conditions, this capability must be based on a quantitative understanding of each of the important mechanisms of mineral matter transport, as well as the nature of the interactions between these substances and the prevailing fireside'' surface of the deposit. This level of understanding and predictive capability could ultimately be translated into very significant cost reductions for coal-fired equipment design, development and operation.
Date:
May 1, 1990
Creator:
Rosner, D.E.
Object Type:
Report
System:
The UNT Digital Library
Evaluation of Inservice Inspection Examinatiions
In order to evaluate the effectiveness of Section 11, Division 1, Rules for Inservice Inspection of Nuclear Power Plant Components,'' of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code examinations, 26 inservice inspection (ISI) summary reports from 24 facilities were reviewed. It was found that these ASME Code examinations and tests are instrumental in revealing indications and defects in welds and plant components. In addition, this study uncovered that fact that some of the Section 11 requirements are apparently not clear and are misunderstood by some of the facilities. Also, the need for more stringent requirements was evaluated and some Code changes are recommended.
Date:
May 1990
Creator:
Aldrich, D. A. & Cook, J. F.
Object Type:
Report
System:
The UNT Digital Library
Cross-flow filter-sorbent catalyst for particulate, SO sub 2 and NO sub x control
This report describes a new concept for integrated pollutant control: a cross-flow filter comprised of layered, gas permeable membranes that act a particulate filter, an SO{sub 2} sorbent, and a NO{sub x} reduction catalyst.
Date:
May 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Reaction of Glass During Gamma Irradiation in a Saturated Tuff Environment
The reaction between tuffaceous groundwater and actinide-doped SRL 165 and PNL 76-68 type glasses in a gamma radiation field has been studied at 90 degrees C for periods up to 278 days. The primary effect of the radiation field was the acidification of the leachate through the production of nitrogen acids. Acidification of the leachate was limited by bicarbonate in the groundwater, for all exposures tested. Nonirradiated experiments were performed to represent the lowest limit of radiation exposure. Both irradiated and nonirradiated experiments were performed with and without a tuff monolith present in the reaction vessel. Neither irradiation nor the presence of tuff had a major effect on the extent of glass reaction as measured by the leachate concentrations of various glass species or analysis of the reacted glass surfaces. This report discusses the results of leaching experiments performed in a gamma radiation field and in the absence of a radiation field.
Date:
May 1990
Creator:
Ebert, William L.; Bates, John K. & Gerding, Thomas J.
Object Type:
Report
System:
The UNT Digital Library
Two-Phase Flow Patterns and Frictional Pressure Gradients in a Small, Horizontal, Rectangular Channel
Two-phase flow patterns and frictional pressure gradients in flow in small, rectangular channels are being studies as part of a larger research program addressing phase-change heat transfer of pure refrigerants and refrigerant mixtures in plate-fin heat exchangers. Small rectangular flow channels were selected as representative of plain fin geometries. The particular channel reported herein has dimensions of 19.05 {times} 3.18 mm. Adiabatic flows of air/water mixtures, with the flow channel horizontal and the channel exit at near-atmospheric conditions, were utilized in the experiments. Analysis and interpretation of the pressure data relative to observed flow pattern transitions led to an objective method for determining the plug/bubble-to-slug flow transition. This method, together with visual observations, supplemented with photographic data, was used to develop a flow pattern man. A comparison of existing flow pattern maps for circular pipes, capillary tubes, and larger rectangular channels led to the conclusion that, while qualitative agreement exists, these maps are not generally applicable on a quantitative basis to the subject small rectangular channel. Two state-of-the-art correlations for frictional pressure gradient were evaluated, with particular emphasis on the practically important ranges of total mass quality and mass flux, from the standpoint of plate-fin heat exchangers designed as evaporators. …
Date:
May 1990
Creator:
Wambsganss, M. W.; Jendrzejczyk, J. A.; France, D. M. & Obot, Nsima T.
Object Type:
Report
System:
The UNT Digital Library
Southwest Retort, Volume 44, Number 5, May 1990
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
May 1990
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
[Letter from Herbert Holl to William McCarter, May 7, 1990]
Photocopy of a letter from Herbert Holl, executive director of Greater Denton Arts Council, to William McCarter, co-director of North Texas Institute for Educators on the Visual Arts. The letter is in regards to the Arts council awarding $750.00 to support North Texas Institute for Educators on the Visual Arts. A copy of the contract between both parties must be signed a returned January 31, 1991.
Date:
May 7, 1990
Creator:
Holl, Herbert
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Raymond B. Kelly III to Jack Davis, May 8, 1990]
Photocopy of a letter from Raymond B. Kelly III, an associate of the William E. Scott Foundation to Jack Davis, co-director of North Texas Institute for Educators on the Visual Arts. The letter is in regards to having received the grant proposal for $10,000 and while North Texas Institute for Educators on the Visual Arts is an excellent program the foundation is unable to assist because of current commitments.
Date:
May 8, 1990
Creator:
Kelly, Raymond B.
Object Type:
Letter
System:
The UNT Digital Library
Marketing Strategies of the American Association of Bible Colleges Directed Toward Students with Nonreligious Vocational Goal
The primary purpose of this study was to determine the marketing strategies for attracting students who have nonreligious vocational goals (NRVG) that are employed by Bible colleges that are either accredited or candidates for accreditation of the American Association of Bible Colleges (AABC). Primary subpurposes were to determine the AABC's interest in marketing themselves.to NRVG; practice of educational marketing strategies toward NRVG; career planning programs and placement services available to NRVG; approaching employers with placement services for NRVG; making available seminars, placement services, and alumni networking for NRVG; and difference in marketing to NRVG according to a colleges' denomination, size, three year growth pattern, and estimated percentage of NRVG. An overview of the literature pertaining to educational marketing and marketing for a liberal arts education was given. The population chosen for this study was the accredited (87) and candidate for accreditation (15) Bible colleges of the AABC (102). Eighty (78.4%) colleges actually responded. The design of this study was survey research using a mailed questionnaire as the principal source of data collection. The statistics utilized were parametric (e.g., one-way analysis of variance and t test) and nonparametric (e.g., chi square). The results of the study indicated that AABC colleges were …
Date:
May 1990
Creator:
Kane, Michael J. (Michael James), 1953-
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Differences in School Districts' Decision-Making Processes Before and After Tax Limitation Elections: A Case Study
Using a case study approach, this investigation focused on the decision-making processes involved in developing budgets in two Texas school districts following a tax limitation, or rollback, election. Factors influencing the decision-making processes included the rollback election's outcome in each district, the participants, the perceptions participants held of themselves, the perceptions participants held of others in the district and community, the decisions made, and the factors influencing participants' decisions. Two Texas school districts were selected as subjects of this study which used qualitative data collection methods. In one school district, the rollback election passed. In the other, it failed. Data collection included observations of school board meetings and budget workshops. Structured interviews of school board members and administrators, pro- and antirollback proponents, and newspaper editors were conducted. Questions focused on the budgetary decision-making processes before and after the rollback elections. They also solicited information fromsubjects regarding rollback elections, the factors precipitating the rollback elections and the impact of the rollback election campaign upon each school district. Document analyses were triangulated with the observations and interviews to identify the factors influencing the budgetary decision-making process. Following the rollback elections, school officials in both districts adopted a conservative approach to budgetary decision-making. …
Date:
May 1990
Creator:
Travis, Rosemary Fechner
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Optical Nonlinearities in Semiconductors for Limiting
I have conducted detailed experimental and theoretical studies of the nonlinear optical properties of semiconductor materials useful for optical limiting. I have constructed optical limiters utilizing two-photon absorption along with photogenerated carrier defocusing as well as the bound electronic nonlinearity using the semiconducting material ZnSe. I have optimized the focusing geometry to achieve a large dynamic range while maintaining a low limiting energy for the device. The ZnSe monolithic optical limiter has achieved a limiting energy as low as 13 nJ (corresponding to 300W peak power) and a dynamic range as large as 105 at 532 nm using psec pulses. Theoretical analysis showed that the ZnSe device has a broad-band response covering the wavelength range from 550 nm to 800 nm. Moreover, I found that existing theoretical models (e.g. the Auston model and the band-resonant model using Boltzmann statistics) adequately describe the photo-generated carriers refractive nonlinearity in ZnSe. Material nonlinear optical parameters, such as the two-photon absorption coefficient β_2=5.5cm/GW, the refraction per unit carrier density σ_n=-0.8∗10^-21cm^3 and the bound electronic refraction n_2=-4∗10^-11esu, have been measured via time-integrated beam distortion experiments in the near field. A numerical code has been written to simulate the beam distortion in order to extract the …
Date:
May 1990
Creator:
Wu, Yuan-Yen
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Cost-Benefit Analysis of the Implementation of Texas House Bill 72 in Selected Texas Public School Districts
This study was conducted to analyze the effect of implementation of Texas House Bill 72 on budgets of selected Texas public school districts and to ascertain educational benefits to students derived from implementation of the bill as perceived by superintendents. Questionnaires were sent to superintendents of the Region 10 Education Service Center to determine perceived educational benefits to students. A demographic data sheet provided information for classifying respondents by educational experience, superintendent experience, and district enrollment classifications. Sixty-two districts responded. Official public school budget data for each district were analyzed for fiscal years 1983 through 1986 as were data from the questionnaire. Overall statistical information was gleaned through CONDESCRIPTIVE. Mean total expenditures, mean total tax rate, and state fiscal aid data were compiled, tabulated, and reported for each enrollment classification and entire sample. In addition, a t-test between the difference of two independent means at a probability level of .05 was applied. The two independent means were the averages of data for the two years prior to and after implementation of the law for expenditures, tax rates, and state fiscal contributions. Data comparing local and state expenditures were compiled, tabulated, and reported for each group to compare local and state …
Date:
May 1990
Creator:
Bradford, Ronald W. (Ronald Wayne)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Model for Predicting Bereavement Outcome in Widowhood
The present longitudinal study examined the effects and interactions of several variables thought to affect adjustment to conjugal bereavement. Questionnaires were administered to 147 conjugally bereaved subjects and to 46 persons bereaved of close relatives other than spouse. Independent variables included experienced competence (self-esteem, locus of control, coping self-efficacy, and prior coping strategies), impact of loss (anticipation and preventabillty of loss, centrality of relationship and life change), and perceived resources. All of the independent variables were found to be important predictors of adjustment in conjugal bereavement. However, hypothesized interactions among variables were generally not found. Experimental variables were better predictors of adjustment in conjugal bereavement than were demographic variables. Contrary to prediction, widowed subjects tended to become more lonely and showed increased bereavement adjustment difficulties over a six month period of time. However, post hoc analysis suggested that levels of adjustment do not decline over the long term in widowhood. The present study supports a view of widowhood as a multidimensional event, characterized by seemingly contradictory feelings, experiences, and behaviors.
Date:
May 1990
Creator:
Allen, Susan Elise
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library