Degree Department

Degree Discipline

Degree Level

2,263 Matching Results

Results open in a new window/tab.

[Letter from Cassandra Broadus to Pam Pedigo, October 18, 1990] (open access)

[Letter from Cassandra Broadus to Pam Pedigo, October 18, 1990]

Photocopy of a letter from Cassandra Broadus, North Texas Institute for Educators on the Visual Arts, to Pam Pedigo, Pilot Point Elementary School. In regards to Pedigo and the other fourth grade teachers on their Persian Miniature and Islamic art display in the school's foyer. Broadus writes that when she visited the school the past Wednesday, Sylvia Russel shared Pedigo's Mid-East unit and how art was included into the study. NTIEVA will be working with PPISD for the next five years and Broadus wants Pedigo to be apart of the program to help teachers integrate visual arts.
Date: October 18, 1990
Creator: Broadus, Cassandra
Object Type: Letter
System: The UNT Digital Library
[Letter draft from Fort Worth ISD to Bill McCarter and Jack Davis, October 1990] (open access)

[Letter draft from Fort Worth ISD to Bill McCarter and Jack Davis, October 1990]

Photocopy of a letter draft to Bill McCarter and Jack Davis, co-directors of North Texas Institute for Educators on the Visual Arts. The letter draft indicates Fort Worth ISD's commitment to the North Texas Institute for Educators on the Visual Arts and that their Associate Director and Site Coordinator Nancy Timmons will contribute at least 15% of her time during the 1992 calendar year to activities related to the staff development and implementation efforts of the DBAE. The end of the letter draft talks about stipends based on the faculty's salary.
Date: October 1990
Creator: unknown
Object Type: Letter
System: The UNT Digital Library
[Letter from Don R. Roberts to Bill McCarter and Jack Davis, October 25, 1990] (open access)

[Letter from Don R. Roberts to Bill McCarter and Jack Davis, October 25, 1990]

Photocopy of a letter from Don R. Roberts, Superintendent of Forth Worth ISD, to Bill McCarter and Jack Davis, co-directors of North Texas Institute for Educators on the Visual Arts. Roberts is writing to confirm Fort Worth ISD's commitment to the North Texas Institute for Educators on the Visual Arts. Their Site Coordinator, Beverly Fletcher, will contribute 15% of her time during the 1992 calendar year to activities related to staff development. Roberts end his letter by congratulating McCarter and Davis for their received grant from the Amon Carter foundation. Cc'd on the letter are, Nancy Timmons and Beverly Fletcher.
Date: October 25, 1990
Creator: Roberts, Don R.
Object Type: Letter
System: The UNT Digital Library
[Letter from Bill McCarter and Jack Davis to Don R. Roberts, October 9, 1990] (open access)

[Letter from Bill McCarter and Jack Davis to Don R. Roberts, October 9, 1990]

Photocopy of a letter from Bill McCarter and Jack Davis, co-directors of North Texas Institute for Educators on the Visual Arts, to Don R. Roberts, Superintendent of Fort Worth ISD. In regards to good news that the Amon Carter Foundation has granted NTIEVA $150,000 for the next three years of their program. McCarter and Davis are thrilled as this amount will go a long way towards meeting their five year matching requirement for the Getty grant. It also insure the ongoing work of the institute. Included in the letter are details about how the Getty grant will release their pay increments during the years. McCarter and Davis write that they need some materials from Roberts, discussing some points they've enclosed in the letter, in order to secure the grant with the Getty Center.
Date: October 9, 1990
Creator: McCarter, William & Davis, Donald Jack
Object Type: Letter
System: The UNT Digital Library
Prototype photon position monitors for undulator beams at the Advanced Light Source (open access)

Prototype photon position monitors for undulator beams at the Advanced Light Source

Design criteria are described, and test results are presented, for prototype ALS undulator beam position monitors. The design is based on monitors presently in use at NSLS, with modifications to account for the widely varying and large K values of the undulators to be installed at the ALS. In particular, we have modified the design to simplify the thermal engineering and we have explored techniques to suppress the response of the monitors to soft photons, so that the beam position can be determined by measuring the higher energy photons which are better collimated. 4 refs., 8 figs.
Date: October 17, 1990
Creator: Warwick, T.; Shu, D. (Lawrence Berkeley Lab., CA (United States)); Rodricks, B. (Argonne National Lab., IL (United States)) & Johnson, E.D. (Brookhaven National Lab., Upton, NY (United States))
Object Type: Article
System: The UNT Digital Library
Bounding burnout risk power limits for the K-14 cycle (open access)

Bounding burnout risk power limits for the K-14 cycle

This document discusses burnout risk (BOR) power limits which are designed to protect the reactor from a significant release of fission products, due to critical heat flux (CHF) burnout of fuel and target assemblies. At expected operating power levels for the reactor restart, approximately 50% of historical full power, the risk of CHF and attendant burnout is negligible. Flow instability power limits will restrict reactor operation, and flow instability will always occur before CHF. BOR power limits must nevertheless be calculated because they are required by the reactor control computer, (2) Bounding BOR limits have been calculated for the K-14 cycle, to fulfill this requirement, and they are presented in this document. Two sets of BOR limits have been calculated: one applicable for the first subcycle, zero to 30% fuel burnup, and the other for the second subcycle, 30% to 55% fuel burnup.
Date: October 1, 1990
Creator: Shadday, M.A. Jr.
Object Type: Report
System: The UNT Digital Library
Hydrological and geochemical investigations of selenium behavior at Kesterson Reservoir (open access)

Hydrological and geochemical investigations of selenium behavior at Kesterson Reservoir

From 1985 to the present we have studied the behavior of selenium in various habitats and environments at Kesterson reservoir, shifting emphasis as remedial actions altered the physical setting. Investigations have evaluated the efficacy of several remedial alternatives, from innovative techniques relying on the complex geochemical behavior of selenium alternatives, from innovative techniques relying on the complex geochemical behavior of selenium in aquatic environments to conventional excavation schemes. Results of these studies supported two cost-effective remedial measures; drain water deliveries were terminated in 1986 and, in 1988, 1 million cubic yards of soil were imported and used to fill the low lying areas of the former Kesterson Reservoir. To date, these two actions appear to have eliminated the aquatic habitat that caused waterfowl death and deformity at Kesterson from the early 1980's to 1987. Biological, surface water and groundwater monitoring data collected by the USBR indicate that Kesterson is now a much safer environment than in past years when drainage water containing 300{mu}g/l of selenium was delivered to the Reservoir. The continued presence of a large inventory of selenium within the upper portions of unfilled areas of Kesterson Reservoir and immediately below the fill material requires that a continued awareness …
Date: October 1, 1990
Creator: Benson, S. M.; Tokunaga, T. K.; Zawislanski, P.; Yee, A. W.; Daggett, J. S.; Oldfather, J. M. et al.
Object Type: Report
System: The UNT Digital Library
Establishment and maintenance of a coal sample bank and data base (open access)

Establishment and maintenance of a coal sample bank and data base

In the project status report for 4/9/90--7/8/90, Table 2 presented update results of a comparative study of coal sample deterioration in several container types including foil laminate bags. This table contained an erroneous entry (foil laminate bag {minus}20 mesh, alkali extraction 65.4% transmittance). The alkali extraction test on {minus}20 mesh coal stored in foil laminate bags for 52 weeks was repeated in duplicate on another bag (after 64 weeks total storage) resulting in a measurement of 96.2% transmittance. This value has been substituted for the erroneous 65.4% value in the corrected copy of Table 2 enclosed with this report. All values of the alkali extraction and Gieseler fluidity tests indicate that the state of preservation of sample in foil laminate bags is excellent. The samples stored by other methods for comparison purposes all showed significant loss in fluid characteristics. One new whole-seam channel sample of the hvAb Pittsburgh seam coal, DECS-12, was collected July 25, 1990 in Greene County, PA. This sample was placed in 30-gallon steel barrels with high-density lid gaskets and purged with argon at the mine. Upon return to Penn State it was promptly processed so that Gieseler fluidity and other routine analyses could be performed.
Date: October 24, 1990
Creator: Davis, A.
Object Type: Report
System: The UNT Digital Library
Pattern recognition in gamma-gamma coincidence data sets (open access)

Pattern recognition in gamma-gamma coincidence data sets

Considerable amounts of tedious labor are required to manually scan high-resolution 1D slices of two dimensional {gamma}-{gamma} coincident matrices for relevant and exciting structures. This is particularly true when the interesting structures are of weak intensity. We are working on automated search methods for the detection of rotational band structures in the full 2D space using pattern recognition techniques. For nominal sized data sets (1024{times}1024), however, these techniques only become computationally feasible through the use of Fourier Transform methods. Furthermore the presentation of data matrices as images rather than series of 1D spectra has been shown to be useful. In this paper we will present the data manipulation techniques we have developed.
Date: October 1, 1990
Creator: Manatt, D. R.; Barnes, F. L.; Becker, J. A.; Candy, J. V.; Henry, E. A. (Lawrence Livermore National Lab., CA (United States)) & Brinkman, M. J. (Rutgers--the State Univ., New Brunswick, NJ (United States))
Object Type: Article
System: The UNT Digital Library
Development of improved iron Fischer-Tropsch catalysts (open access)

Development of improved iron Fischer-Tropsch catalysts

The objective of proposed research is development of catalysts with enhanced slurry phase activity and better selectivity to fuel range products, through a more detailed understanding and systematic studies of the effects of pretreatment procedures and promoters/binders (silica) on catalyst performance.
Date: October 29, 1990
Creator: Bukur, D.B.
Object Type: Report
System: The UNT Digital Library
Evaluation of Effectiveness of the Turco Low Profile Turbulator Reg Sign (open access)

Evaluation of Effectiveness of the Turco Low Profile Turbulator Reg Sign

This document discusses a turbulator which utilizes a heated chemical bath to reduce smearable contamination from small parts and tools. It is comprised of two agitators programmed to automatically alternate the flow of the cleaning solution within the tank in four separate and distinct high velocity flow patterns allowing access to the entire surface area of the part or tool being decontaminated. The turbulator is being evaluated to determine if agitation increases the effectiveness of waste minimization. Testing of the turbulator consisted of evaluation of the Sludgetrap Containment, Tool Cleaning Demonstration, and Coupon Testing. Results so far are that the sludgetrap is effective in containing particles the size of sand, agitation increases the effectiveness of the turbulator, abrasives can replace detergents for waste minimization, and Inconel 625 is more difficult to clean than Type 3041 Stainless Steel.
Date: October 23, 1990
Creator: Grittmann, S.; McGlynn, J. F.; Long, J. R. & Rankin, W. N.
Object Type: Report
System: The UNT Digital Library
ASHRAE Standard 62-1989: Energy, Cost, and Program Implications. (open access)

ASHRAE Standard 62-1989: Energy, Cost, and Program Implications.

ASHRAE Standard 62-1989 (Standard 62-89) Ventilation for Acceptable Indoor Air Quality'' is the new heating, ventilating, and air-conditioning (HVAC) industry consensus for ventilation air in commercial buildings. Bonneville Power Administration (Bonneville) references ASHRAE Standard 62-81 (the predecessor to Standard 62-89) in their current environmental documents for required ventilation rates. Through its use, it had become evident to Bonneville that Standard 62-81 needed interpretation. Now that the revised Standard (Standard 62-89) is available, its usefulness needs to be evaluated. Based on current information and public comment, the American Society of Heating, Refrigeration, and Air-Conditioning Engineers (ASHRAE) revised Standard 62-1981 to Standard 62-89. Bonneville's study estimated the energy and cost implications of ASHRAE Standard 62-89 using simulations based on DOE-2.1D, a computer simulation program which estimates building use hourly as a function of building characteristics and climatic location. Ten types of prototypical commercial buildings used by Bonneville for load forecasting purposes were examined: Large and Small Office, Large and Small Retail, Restaurant, Warehouse, Hospital, Hotel, School, and Grocery. These building characterizations are based on survey and energy metering data and represent average or typical construction and operation practices and mechanical system types. Prototypical building ventilation rates were varied in five steps to …
Date: October 15, 1990
Creator: Steele, Tim R. & Brown, Marilyn A.
Object Type: Report
System: The UNT Digital Library
Design options for low-conductivity window frames (open access)

Design options for low-conductivity window frames

The window industry's commercialization of low-emissivity coatings and low-conductivity gas-filling over the past few years has helped to drastically reduce heat transfer rates through the glazed areas of windows. However, few changes have taken place in the design and construction of window frames and edges, leaving these elements to account for most of the heat transfer through today's state-of-the-art windows. This paper presents design and material requirements for the manufacture of low-conductivity window frames obtained through the use of finite element computer modeling. Such frames will compliment and not degrade today's most energy-efficient insulated glass units. 7 refs., 2 figs., 5 tabs.
Date: October 1, 1990
Creator: Byars, N. & Arasteh, D.
Object Type: Report
System: The UNT Digital Library

[Jean Nelson Ribbon Cutting at Nelson - Tebedo Clinic Opening]

Photograph of Jean Nelson cutting rainbow colored ribbons in honor of opening of the Nelson - Tebedo Clinic. An exam table and counter are visible behind her. Handwritten on the back of the photo are the words, "Jean Nelson. (Bill's mother) Oct. 1990. Opening of Clinic." Jean was the mother of Bill Nelson, one of the clinic's namesakes, and a LGBT and AIDS activist.
Date: October 1990
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

Guest Artist Recital: 1990-10-01 - C. James Sheppard-EVI and EWI midi controllers, composer

Access: Use of this item is restricted to the UNT Community
Guest artist recital performed at the UNT College of Music Merrill Ellis Intermedia Theater.
Date: October 1, 1990
Creator: Sheppard, C. James (Charles James), 1943-
Object Type: Sound
System: The UNT Digital Library

Faculty Recital: 1990-10-03 - Adam Wodnicki, piano

Access: Use of this item is restricted to the UNT Community
Faculty concert performed at the UNT College of Music Merrill Ellis Intermedia Theater.
Date: October 3, 1990
Creator: Wodnicki, Adam
Object Type: Sound
System: The UNT Digital Library

Guest Artist Lecture: 1990-10-05 - Fred Hinger, percussion

Access: Use of this item is restricted to the UNT Community
Concert performed at an unknown location.
Date: October 5, 1990
Creator: Hinger, Fred
Object Type: Sound
System: The UNT Digital Library

Faculty Recital: 1990-10-23 - Vern Kagarice, trombone

Access: Use of this item is restricted to the UNT Community
Faculty recital performed at the UNT College of Music Concert Hall.
Date: October 23, 1990
Creator: Kagarice, Vern
Object Type: Sound
System: The UNT Digital Library

Guest Artist Recital: 1990-10-28 - Alegria Arce, piano

Access: Use of this item is restricted to the UNT Community
Guest artist recital performed at the UNT College of Music Recital Hall.
Date: October 28, 1990
Creator: Arce, Alegria
Object Type: Sound
System: The UNT Digital Library
Nuclear Technology Programs Semiannual Progress Report: April-September 1988 (open access)

Nuclear Technology Programs Semiannual Progress Report: April-September 1988

Progress report of the Argonne National Laboratory's Nuclear Technology Programs, including R&D in three areas: applied physical chemistry, separation science and technology, and nuclear waste management.
Date: October 1990
Creator: Steindler, M. J. & Harmon, J. E.
Object Type: Report
System: The UNT Digital Library
Test and Evaluation of the Argonne BPAC10 Series Air Chamber Calorimeter Designed for 20 Minute Measurements (open access)

Test and Evaluation of the Argonne BPAC10 Series Air Chamber Calorimeter Designed for 20 Minute Measurements

This paper is the final report on DOE-OSS Task ANLE88002 Fast Air Chamber Calorimetry.'' The task objective was to design, construct, and test an isothermal air chamber calorimeter for plutonium assay of bulk samples that would meet the following requirements for sample power measurement: average sample measurement time less than 20 minutes. Measurement of samples with power output up to 10 W. Precision of better than 1% RSD for sample power greater than 1 W. Precision better than 0.010 watt SD, for sample power less than 1 W. This report gives a description of the calorimeter hardware and software and discusses the test results. The instrument operating procedure, included as an appendix, gives examples of typical input/output and explains the menu driven software.
Date: October 1990
Creator: Perry, Ronald B.; Fiarman, Sidney; Jung, Erwin A. & Cremers, Teresa
Object Type: Report
System: The UNT Digital Library
Practical Superconductor Development for Electrical Power Applications, Annual Report: 1990 (open access)

Practical Superconductor Development for Electrical Power Applications, Annual Report: 1990

Annual report for the superconductor program at Argonne National Laboratory discussing the group's activities and research. This report describes technical progress of research and development efforts aimed at producing superconducting components based on the Y-Ba--Cu, Bi-Sr-Ca-Cu, Bi-Pb-Sr-Ca-Cu, and TI-Ba-Ca-Cu oxide systems including: synthesis and heat treatment of high-Ta superconductors, formation of monolithic and composite wires and tapes, superconductor/metal connectors, characterization of structures and superconducting and mechanical properties, and fabrication and properties of thin films.
Date: October 1990
Creator: Argonne National Laboratory. Materials and Components Technology Division.
Object Type: Report
System: The UNT Digital Library
Local Interfacial Area Concentration Measurement in Bubbly Flow (open access)

Local Interfacial Area Concentration Measurement in Bubbly Flow

The interfacial area concentration is one of the most important parameters in a thermal-hydraulic analysis of two-phase flow systems based on the two-fluid model. A theoretical foundation of the measurement method for the time averaged local interfacial area using a double sensor probe is presented. Based on this theory, the double sensor resistivity probe was employed for the measurement of local properties of two-phase flow such as the interfacial velocity, local interfacial area concentration and void fraction in vertical air-water bubbly flow. Experimental data are presented on the radial profiles of the void fraction, bubble velocity, bubble chord length and interfacial area concentration at various gas flow rates. In addition to these, some statistical information on turbulent motions of bubbles are presented. Each of the double sensors are checked against the global void measurement using a differential pressure. The result is very satisfactory. Furthermore, the area averaged void fraction, and the interfacial area concentration obtained from the double sensor probe measurement compared very well with the photographic measurements. The results show that the double sensor probe method is accurate and reliable for the local measurements of interfacial area and void fraction in bubbly two-phase flow. Results of the measurement of …
Date: October 1990
Creator: Ishii, M. & Revankar, Shripad T.
Object Type: Report
System: The UNT Digital Library
Southwest Retort, Volume 44, Number [7], October 1990 (open access)

Southwest Retort, Volume 44, Number [7], October 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: October 1990
Creator: American Chemical Society. Dallas/Fort Worth Section.
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library