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Faculty Recital: 1995-03-07 - Jesse Eschbach, organ
Access:
Use of this item is restricted to the UNT Community
A Faculty recital performed at the Meyerson Symphony Center in Dallas, Texas.
Date:
March 7, 1995
Creator:
Eschbach, Jesse E.
Object Type:
Sound
System:
The UNT Digital Library
Faculty Recital: 1995-04-02 - David Joyner, piano and vocal
Access:
Use of this item is restricted to the UNT Community
A faculty recital performed in the UNT College of Music Recital Hall.
Date:
April 2, 1995
Creator:
Joyner, David
Object Type:
Sound
System:
The UNT Digital Library
ANL Technical Support Program for DOE Environmental Restoration and Waste Management Annual Report October 1993 - September 1994
A program was established for DOE Environmental Restoration and Waste Management (EM) to evaluate factors that are anticipated to affect waste glass reaction during repository disposal, especially in an unsaturated environment typical of what may be expected for the proposed Yucca Mountain repository site.
Date:
June 1995
Creator:
Bates, John K.
Object Type:
Report
System:
The UNT Digital Library
Separation Science and Technology Semiannual Progress Report for October 1992 - March 1993
This document reports on the work done by the Separations Science and Technology Section of the Chemical Technology Division, Argonne National Laboratory, in the period October 1992-March 1993. This effort is mainly concerned with developing the TRUEX process for removing and concentrating actinides from acidic waste streams contaminated with transuranic (TRU) elements.
Date:
January 1995
Creator:
Vandegrift, G. F.
Object Type:
Report
System:
The UNT Digital Library
Laboratory Testing of Glasses for Lockheed Idaho Technology Co. Fiscal Year 1994 Report
The purpose of this project is to measure the intermediate and long-term durability of vitrified waste forms developed by Lockheed Idaho Technology Co. (LITCO) for the immobilization of calcined radioactive wastes at Idaho National Engineering Laboratory. Two vitreous materials referred to as Formula 127 and Formula 532, have been subjected to accelerated durability tests to measure their long-term performance. Formula 127 consists of a glass matrix containing 5-10 vol % fluorite (CaF2) as a primary crystalline phase. It shows low releases of glass components to solution in 7-, 28-, 70-, and 140-day Product Consistency Tests performed at 2000 m⁻¹ at 90 C. In these tests, release rates for glass-forming components were similar to those found for durable waste glasses. The Ca and F released by the glass as it corrodes appear to re-precipitate as fluorite. Formula 532 consists of a glass matrix containing 5-10 vol % of an Al-Si-rich primary crystalline phase. The release rates for components other than aluminum are relatively low, but aluminum is released at a much higher rate than is typical for durable waste glasses. Secondary crystalline phases form relatively early during the corrosion of Formula 532 and appear to consist almost entirely of the Al-Si-rich …
Date:
April 1995
Creator:
Ellison, A. J. G.; Wolf, S. F. & Bates, John K.
Object Type:
Report
System:
The UNT Digital Library
Analytical Electron Microscopy Characterization of Fernald soils. Annual Report, October 1993 - September 1994
A combination of backscattered electron imaging and analytical electron microscopy (AEM) with electron diffraction have been used to determine the physical and chemical properties of uranium contamination in soils from the Fernald Environmental Management Project in Ohio. The information gained from these studies has been used in the development and testing of remediation technologies.
Date:
March 1995
Creator:
Buck, E. C.; Brown, N. R. & Dietz, N. L.
Object Type:
Report
System:
The UNT Digital Library
Surveillance of Site A and Plot M : Report for 1994
The results of the environmental surveillance program conducted at Site A/Plot M in the Palos Forest Preserve area for 1994 are presented. The surveillance program is the ongoing remedial action that resulted from the 1976-1978 radiological characterization of the site. That study determined that very low levels of hydrogen-3 (as tritiated water) had migrated from the burial ground and were present in two nearby hand-pumped picnic wells. The current program consists of sample collection and analysis of air, surface and subsurface water, and bottom sediment.
Date:
May 1995
Creator:
Golchert, N. W.
Object Type:
Report
System:
The UNT Digital Library
The Effects of the Glass Surface Area/Solution Volume Ratio on Glass Corrosion: a Critical Review
This report reviews and summarizes the present state of knowledge regarding the effects of the glass surface area/solution volume (SA/V) ratio on the corrosion behavior of borosilicate waste glasses.
Date:
March 1995
Creator:
Ebert, William L.
Object Type:
Report
System:
The UNT Digital Library
Technology Development Goals for Automotive Fuel Cell Power Systems
Directed Technologies, Inc. has previously submitted a detailed technical assessment and concept design for a mid-size, five-passenger fuel cell electric vehicle (FCEV), under contract to Argonne National Laboratory. As a supplement to that contract, DTI has reviewed the literature and conducted a preliminary evaluation of two energy carriers for the FCEV: hydrogen and methanol. This report compares the estimated fuel efficiency, cost of producing and delivering the fuel, and the resultant life cycle costs of the FCEV when fueled directly by hydrogen and when fueled by methanol with on-board reforming to produce the required hydrogen-rich gas for the fuel cell. This work will be supplemented and expanded under the Ford contract with the Department of Energy to develop the FCEV and its fuel infrastructure.
Date:
July 1995
Creator:
Thomas, C. E. & James, Brian D.
Object Type:
Report
System:
The UNT Digital Library
Studies of Acute and Chronic Radiation Injury at the Biological and Medical Research Division, Argonne National Laboratory, 1970-1992 : the JANUS Program Survival and Pathology Data
A research reactor for exclusive use in experimental radiobiology was designed and built at Argonne National Laboratory in the 1960`s. It was located in a special addition to Building 202, which housed the Division of Biological and Medical Research. Its location assured easy access for all users to the animal facilities, and it was also near the existing gamma-irradiation facilities. The water-cooled, heterogeneous 200-kW(th) reactor, named JANUS, became the focal point for a range of radiobiological studies gathered under the rubic of "the JANUS program". The program ran from about 1969 to 1992 and included research at all levels of biological organization, from subcellular to organism. More than a dozen moderate- to large-scale studies with the B6CF₁ mouse were carried out; these focused on the late effects of whole-body exposure to gamma rays or fission neutrons, in matching exposure regimes. In broad terms, these studies collected data on survival and on the pathology observed at death. A deliberate effort was made to establish the cause of death. This archieve describes these late-effects studies and their general findings. The database includes exposure parameters, time of death, and the gross pathology and histopathology in codified form. A series of appendices describes all …
Date:
February 1995
Creator:
Grahn, D.; Wright, B. J.; Carnes, B. A.; Williamson, F. S. & Fox, C.
Object Type:
Report
System:
The UNT Digital Library
Boiling Heat Transfer with Three Fluids in Small Circular and Rectangular Channels
Small circular and noncircular channels are representative of flow passages act evaporators and condensers. This report describes results of an experimental study on heat transfer to the flow boiling of refrigerants (R-12) and refrigerant-134a (R-134a) in a small horizontal circular-cross-section tube. The tube diameter of 2.46 mm was chosen to approximate the hydraulic diameter of a 4.06 x 1.70 mm rectangular channel previously studied with R-12, and a 2.92-mm-diameter circular tube previously studied with R-113. The objective of this study was to assess the effects of channel geometry and fluid properties on the heat transfer coefficient and to obtain additional insights relative to the heat transfer mechanism(s). The current circular flow channel for the R-12 and R-134a tests was made of brass and had an overall length of 0.9 in. The channel wall was electrically heated, and thermocouples were installed on the channel wall and in the bulk fluid stream. Voltage taps were located at the same axial locations as the stream thermocouples to allow testing over an exit quality range to 0.94 and a large range of mass flux (58 to 832 kg/m sq s) and heat flux (3.6 to 59 kW/m sq). Saturation pressure was nearly constant, averaging …
Date:
January 1995
Creator:
Tran, T. N.; Wambsganss, M. W. & France, D. M.
Object Type:
Report
System:
The UNT Digital Library
Dynamic Stability Experiment of Maglev Systems
This report summarizes the research performed on Maglev vehicle dynamic stability at Argonne National Laboratory during the past few years. It also documents magnetic-force data obtained from both measurements and calculations. Because dynamic instability is not acceptable for any commercial Maglev system, it is important to consider this phenomenon in the development of all Maglev systems. This report presents dynamic stability experiments on Maglev systems and compares their numerical simulation with predictions calculated by a nonlinear dynamic computer code. Instabilities of an electrodynamic system (EDS)-type vehicle model were obtained from both experimental observations and computer simulations for a five-degree-of-freedom Maglev vehicle moving on a guideway consisting of double L-shaped aluminum segments attached to a rotating wheel. The experimental and theoretical analyses developed in this study identify basic stability characteristics and future research needs of Maglev systems.
Date:
April 1995
Creator:
Cai, Y.; Rote, D. M.; Mulcahy, T. M.; Wang, Z.; Chen, Shoei-Sheng & Zhu, S.
Object Type:
Report
System:
The UNT Digital Library
Argonne National Laboratory-East Site Environmental Report for Calendar Year 1994
This report discusses the results of the environmental protection program at Argonne National Laboratory-East (ANL) for 1994. To evaluate the effects of ANL operations on the environment, samples of environmental media collected on the site, at the site boundary, and off the ANL site were analyzed and compared to applicable guidelines and standards. A variety of radionuclides was measured in air, surface water, groundwater, soil, grass, and bottom sediment samples. In addition, chemical constituents in surface water, groundwater, and ANL effluent water were analyzed.
Date:
May 1995
Creator:
Golchert, N. W. & Kolzow, R. G.
Object Type:
Report
System:
The UNT Digital Library
Advanced Evaporator Technology Progress Report FY 1992
This report summarizes the work that was completed in FY 1992 on the program "Technology Development for Concentrating Process Streams." The purpose of this program is to evaluate and develop evaporator technology for concentrating radioactive waste and product streams such as those generated by the TRUEX process. Concentrating these streams and minimizing the volume of waste generated can significantly reduce disposal costs; however, equipment to concentrate the streams and recycle the decontaminated condensates must be installed. LICON, Inc., is developing an evaporator that shows a great deal of potential for this application. In this report, concepts that need to be incorporated into the design of an evaporator operated in a radioactive environment are discussed. These concepts include criticality safety, remote operation and maintenance, and materials of construction. Both solubility and vapor-liquid equilibrium data are needed to design an effective process for concentrating process streams. Therefore, literature surveys were completed and are summarized in this report. A model that is being developed to predict vapor phase compositions is described. A laboratory-scale evaporator was purchased and installed to study the evaporation process and to collect additional data. This unit is described in detail. Two new LICON evaporators are being designed for installation …
Date:
January 1995
Creator:
Chamberlain, D. B.
Object Type:
Report
System:
The UNT Digital Library
Practical Superconductor Development for Electrical Power Applications, Annual Report: 1995
Annual report for the superconductor program at Argonne National Laboratory discussing the group's activities and research. This report describes the technical progress of research and development efforts aimed at producing superconducting components in the (Bi,Pb)-Sr-Ca-Cu, (T,Pb,Bi,V)- (Ba,Sr)-Ca-Cu, and Y-Ba-Cu oxide systems including: synthesis and heat treatment of high-Te superconductors, formation of monolithic and composite conductors, characterization of structures and superconducting and mechanical properties, and fabrication and testing of prototype components.
Date:
October 1995
Creator:
Argonne National Laboratory. Materials and Components Technology Division.
Object Type:
Report
System:
The UNT Digital Library
Quality Indicators for Private Liberal Arts Colleges and Universities
The purpose of this study was to identify indicators of quality for liberal arts colleges and universities as defined by internal and external constituents, and to compare the results of this study with those of two-year public institutions. The internal constituents included college and university presidents and faculty, and the external constituents consisted of officers of Chambers of Commerce and the Kiwanis International, representing business and industry. A survey instrument of 70 items was sent to the constituents of 148 institutions accredited by the Southern Association of Colleges and Schools. A total of 592 surveys were sent with an average response rate of 56.93%. The study was limited to Baccalaureate (Liberal Arts) Colleges I and Baccalaureate (Liberal Arts) Colleges II according to the Carnegie Foundation for the Advancement of Teaching. There were 57 survey items identified as indicators of quality by agreement of all respondent group means. The highest ranked indicator of quality was faculty commitment to teaching. The Analysis of Variance revealed close agreement by constituents on 17 of the quality indicators. There was close agreement also that three of the survey items were not indicators of quality. Fisher's Multiple Comparison test revealed that various constituents rated some survey …
Date:
December 1995
Creator:
Connors, Donald R., 1936-
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effect of Auditor Knowledge on Information Processing during Analytical Review
Auditors form judgments by integrating the evidence they gather with information stored in memory (knowledge). As they acquire experience, auditors have the opportunity to learn how different patterns of evidence are associated with particular audit problems. Research in experimental psychology has demonstrated that individuals with task-specific experience can match the cues they encounter with patterns they have learned, and form judgments without consciously analyzing the individual cues. Accounting researchers have suggested that auditors develop judgment templates through task-specific experience, and that these knowledge structures automatically provide decisions in familiar situations. I examined whether auditor knowledge leads to reliance on judgment templates. To test this thesis, I synthesized a theoretical framework and developed research hypotheses that predict relationships between task-specific experience (my surrogate for knowledge) and (1) measures of cognitive effort, (2) accuracy of residual memory traces, and (3) performance with respect to identifying potential problems. To test these predictions, I provided senior auditors with comprehensive case materials for a hypothetical client and asked them to use analytical procedures to identify potential audit problems. Subjects acquired information and documented their findings on personal computers using software that I developed to record their activities.
Date:
February 1995
Creator:
O'Donnell, Ed
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Student Environment Model: a Measure of Institutional Effectiveness
In a rapidly changing environment of growing competition for limited resources and ever increasing operational costs, institutions of higher education must focus on all aspects of the organizational functions to insure institutional effectiveness and the maximization of student success. This study will use a Student Environment Model (SEM) to assess students' perception of their college environment outside of the formal classroom at a unique two year technical college. The information obtained is used by the administration of Texas State Technical College Waco (TSTCW) to make appropriate adjustments in programs, services, or policies when the student data indicates that change or improvement is needed. While the SEM provides an indication of the students' "image" of the college environment, it can also provide indicators of areas which need improvement or require change. Applying the SEM information to decision making, problem solving, and planning will allow the institution and its people to move toward higher productivity and continuous quality improvement.
Date:
May 1995
Creator:
Morris, Lucille Darline
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Comparative Analysis of the Effects of Video-Based versus Live Presentation Staff Development on Teachers' Cognitive Learning and Attitudes
The problem of this study was the identification of effective and efficient means of providing quality staff development for reading instruction within a school-district setting. The study investigated the comparative effectiveness of two staff development delivery systems measured by 1) a cognitive test of a school district's reading program and 2) an affective measure of teacher attitudes toward staff development. The sample was drawn from the teacher population of a large urban school district. The 46 subjects were elementary school teachers in grades K-5 randomly divided into two groups: Group A (videotape with a trained on-site facilitator) and Group B (face-to-face live presenter). Participants in the study received training using "The Fort Worth Reading Program," a staff development program designed by the researcher. In addition to the presentation of content information, which is the central component, the program features small group discussions, off-line activities, and question and answer periods. Both groups received the same treatment with the following exception. A central component to the Group A training was the presentation of content information in a videotape format. Group B did not view the videotape, but received the same information via live presenter. Two instruments developed by the researcher were used …
Date:
December 1995
Creator:
Cox, Alan R. (Alan Ray)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Applications of Reductive Analytical Techniques in the Phrygian Settings of the Orgelbüchlein by J.S. Bach
This study aims to two problematic aspects of the Phrygian mode: a. the development of a harmonic pattern at the cadence that differs from that of the other modes and of the major and minor modes as well; b. the observation that the Phrygian scale inverts all of the intervallic properties of the Major scale. The result of these two observations is that when the reductive techniques of Heinrich Schenker are applied in the Phrygian repertory, melodic and harmonic properties are brought into conflict with each other. However, application of alternative models of the Ursatz developed by Lori Burns has certain benefits for demonstrating musical properties in the Phrygian repertory.
Date:
May 1995
Creator:
Leite, Zilei de Oliveira
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effects of External Electric Fields on Light Transmittance in Isolated Crayfish Nerves
Acute effects of a pulsed external electric field (PEEF) at 20 V/cm and a d.c. EEF at 90 V/cm on light transmittance in an isolated compound crayfish nerve was measured. In a third series, the nerve was pre-treated with the Na+ channel blocker tetrodotoxin (TTX). A PEEF produced an irreversible increase in the variation of light transmittance in normal nerves but a reversible increase in TTX treated nerves. This data was statistically insignificant. The d.c. EEFs produced a reversible and statistically significant enhancement of variation in light transmittance in both untreated and TTX-treated nerves. The findings may be due to either (1) an alteration in the ion/fluid flux within the nerve or (2) a physical alteration of protein molecules in the membranes.
Date:
December 1995
Creator:
Northcutt, Brian S. W.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Study of the Effectiveness of Supplemental Instruction on Developmental Math Students in Higher Education
This quasi-experimental study examined the effects of participation in a Supplemental Instruction (SI) program on student test performance in a second-level developmental mathematics class in a four-year university setting. This research deviated from past research on Supplemental Instruction in that it examined effects of the program at the end of each test block rather than at the end of the course only. The quasi-experimental design was precipitated by an inability to control factors of participation and limited sample size. Test data were analyzed using analysis of variance; final course grades were analyzed using chi-square.
Date:
May 1995
Creator:
Stephens, Jan (Jan Ellen)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Concertino for Flute, Timpani and String Orchestra
Concertino for Flute, Timpani, and String Orchestra is a three movement piece that blends Western European forms with Korean idioms. The following essay addresses pitch materials, melodic structure, rhythm, form, instrumentation, vertical structures, and developmental procedures used in the work.
Date:
December 1995
Creator:
Moon, Jeong-Hyun
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Academic Achievement: Examining the Impact of Community Type at a Small Liberal Arts College in Texas
Hierarchical regression was used to determine if high school community type is an effective predictor of academic success when controlling for demographics, prior academic achievement, socioeconomic status, and current commitment or work habits for students entering Austin College in 1992,1993, and 1994 . Findings revealed that there is a relationship between attending high school in community types of rural and independent town controlling for the effects of SAT scores, high school rank, sex, and late application deposit on first semester grade point average.
Date:
August 1995
Creator:
Rutherford, Janis Pruitt
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library