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A study of tau decays of the W boson at CDF (Collider Detector at Fermilab) (open access)

A study of tau decays of the W boson at CDF (Collider Detector at Fermilab)

A report is given of a search for tau decays of the W boson in p{bar p} collisions at {radical}s = 1.8 TeV using the Collider Detector at Fermilab (CDF). A description of a hardware trigger specifically designed to enhance the number of events with tau decays is presented along with the results of a preliminary analysis of data taken during the 1988--89 run of CDF. 10 refs., 4 figs.
Date: January 3, 1990
Creator: Gladney, L. D.
Object Type: Article
System: The UNT Digital Library
[Letter from Marvin E. Edwards to Jack Davis and Bill McCarter, May 3, 1990] (open access)

[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 Cassandra Broadus to Elaine Schad, December 3, 1990] (open access)

[Letter from Cassandra Broadus to Elaine Schad, December 3, 1990]

Photocopy of a letter from Cassandra Broadus, North Texas Institute for Educators on the Visual Arts, to Elaine Schad, Denton Record-Chronicle. In regards to the interview Broadus had with Schad about the NTIEVA program and partnership with Pilot Point ISD. Broadus writes to Schad that NTIEVA is funded by the Getty Center for Education in the Arts and the University of North Texas Foundation and to mail Jack Davis for any inquiries they may have about it.
Date: December 3, 1990
Creator: Broadus, Cassandra
Object Type: Letter
System: The UNT Digital Library
[Letter from Cassandra Broadus to Linda Kirby, December 3, 1990] (open access)

[Letter from Cassandra Broadus to Linda Kirby, December 3, 1990]

Photocopy of a letter from Cassandra Broadus, North Texas Institute for Educators on the Visual Arts, to Linda Kirby, Community Relations Coord., Pilot Point. In regards to a schedule interview with the Denton Record-Chronicle and how Broadus is looking forward to the presentation in January and working with Davis Lewis on the special arts edition for Post-Signal.
Date: December 3, 1990
Creator: Broadus, Cassandra
Object Type: Letter
System: The UNT Digital Library
[Memorandum from Pat Warde to Ruby Raines, May 3, 1990] (open access)

[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 to Howard Dunn, May 3, 1990] (open access)

[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

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
[Letter from Darlene Mann to Jack Davis, April 3, 1990] (open access)

[Letter from Darlene Mann to Jack Davis, April 3, 1990]

Photocopy of a letter from Darlene Mann, Vice president of NCNB Texas to Jack Davis, co-director of North Texas Institute for Educators on the Visual Arts. The letter is in regards to previous correspondence where Davis and North Texas Institute for Educators on the Visual Arts submitted a support grant proposal. In the letter Mann writes that have received their request and it will be considered.
Date: April 3, 1990
Creator: Mann, Darlene
Object Type: Letter
System: The UNT Digital Library
The role of imaging in advanced document systems: Reviews of computing technology (open access)

The role of imaging in advanced document systems: Reviews of computing technology

This report discusses the following topics on imaging technology in advanced document systems: supporting technology; current state of image systems; and future directions of image systems.
Date: December 3, 1990
Creator: Hudson, B.J.
Object Type: Report
System: The UNT Digital Library
[News Clip: Central Expressway] captions transcript

[News Clip: Central Expressway]

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering footage of Dallas's Central Expressway.
Date: January 3, 1990
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
The Tulia Herald (Tulia, Tex.), Vol. 82, No. 18, Ed. 1 Thursday, May 3, 1990 (open access)

The Tulia Herald (Tulia, Tex.), Vol. 82, No. 18, Ed. 1 Thursday, May 3, 1990

Weekly newspaper from Tulia, Texas that includes local, state and national news along with extensive advertising.
Date: May 3, 1990
Creator: Reynolds, Jim
Object Type: Newspaper
System: The Portal to Texas History
The Canadian Record (Canadian, Tex.), Vol. 100, No. 18, Ed. 1 Thursday, May 3, 1990 (open access)

The Canadian Record (Canadian, Tex.), Vol. 100, No. 18, Ed. 1 Thursday, May 3, 1990

Weekly newspaper from Canadian, Texas that includes local, state and national news along with extensive advertising.
Date: May 3, 1990
Creator: Ezzell, Ben & Ezzell, Nancy
Object Type: Newspaper
System: The Portal to Texas History
Fluid dynamics of double diffusive systems (open access)

Fluid dynamics of double diffusive systems

The major accomplishments of our initial research period (August 1, 1987, to March 1, 1990) are as follows; we completed construction of the experimental facility. Originally, it had been our intent to modify an existing facility in our laboratory. When this became impractical we constructed a new stand-alone facility. Modified an existing three-dimensional numerical code developed in our laboratory, SEAFLOS1, by incorporating a salinity transport equation. Developed experimental and analytical techniques, and performed both physical and numerical experiments for a wide range of initial and boundary conditions. Focused our overall research effort to answer the following four questions pertaining to the formation of convective intrusions due to lateral temperature gradients established by sidewall heating. (1) What is the internal structure of the convective intrusions as a function of the initial stratification and sidewall heating rates (2) What is the correct scaling for the initial vertical dimension of the intrusions (3) How does the merging process vary as a function of initial stratification and sidewall heating rate (4) Is the sidewall heating critical for continued propagation of the intrusions, or is it merely a trigger which releases the internal instability in the fluid
Date: April 3, 1990
Creator: Koseff, J. R.
Object Type: Report
System: The UNT Digital Library
Stochastic analysis of contaminant transport: One-dimensional non-reactive and reactive cases (open access)

Stochastic analysis of contaminant transport: One-dimensional non-reactive and reactive cases

A reliability approach for probabilistic modeling of one-dimensional non-reactive and reactive transport in porous media provides two important quantitative results: (1) an estimate of the probability that dimensionless concentration equals or exceeds some specified level and, (2) the sensitivity of the probabilistic outcome to likely changes in each uncertain variable. The reliability approach is particularly attractive because it can incorporate various marginal probability density functions (PDF) for any of the uncertain variables. In this work uncertain variables include: groundwater flow velocity, diffusion coefficient, dispersivity, distribution coefficient, porosity and bulk density. The primary objective is to examine how the probabilistic outcome is influenced by choice of marginal PDF, correlation and magnitude of uncertainty for the variables. Because little information exists concerning the statistical characteristics of these uncertain variables, the investigation assumes a wide range of PDF types and statistical values in order to identify and isolate the most critical issues for further study. Results indicate that, even for very slow mean velocity, the probability estimate for non-reactive transport is most sensitive to uncertain flow velocity. For practical analysis, it appears acceptable to treat dispersivity as a deterministic constant. For non-reactive transport, correlation between flow velocity and diffusion coefficient has a slight …
Date: December 3, 1990
Creator: Cawlfield, J.D. & Wu, Ming-Chee.
Object Type: Report
System: The UNT Digital Library
A Fast Online Event Display for a High Intensity Fixed-Target Spectrometer (open access)

A Fast Online Event Display for a High Intensity Fixed-Target Spectrometer

A workstation-based event display program for the Fermilab Tagged Photon Spectrometer (TPS) is described. Fast displays are required to monitor detector elements, observe hit patterns and energy deposition, and to check track reconstruction. Design considerations, novel features, and performance are designed. 5 refs., 4 figs., 1 tab.
Date: May 3, 1990
Creator: Napier, Austin
Object Type: Article
System: The UNT Digital Library
Natural gas monthly, July 1990 (open access)

Natural gas monthly, July 1990

This report highlights activities, events, and analyses of interest to public and private sector organizations associated with the natural gas industry. Volume and price data are presented each month for natural gas production, distribution, consumption, and interstate pipeline activities. Producer-related activities and underground storage data are also reported. A glossary is included. 7 figs., 33 tabs.
Date: October 3, 1990
Creator: unknown
Object Type: Report
System: The UNT Digital Library
The Crystal Structures and Powder Diffraction Patterns of the Uranium Tellurides (open access)

The Crystal Structures and Powder Diffraction Patterns of the Uranium Tellurides

A critical review of all of the reported structures and powder diffraction patterns in the uranium telluride system has been undertaken. Structures that are correct: Cubic -- UTe: no experimental pattern exists. Retain calculated 15--865. Cubic --U{sub 3}Te{sub 4}: retain the poor quality 12--610 but adopt the pattern calculated here. Cubic U{sub 2}Te{sub 3}: no experimental pattern exists. Adopt pattern calculated here. Orthorhombic UTe{sub 2}: Adopt the new pattern of Boehme et al. Monoclinic {alpha}UTe{sub 3} Adopt the new pattern of Boehme et al. Monoclinic {alpha}UTe{sub 3} Adopt the new pattern of Boehme et al. Orthorhombic {beta}UTe{sub 3}: Adopt pattern calculated here. Orthorhombic UTe{sub 5}: Adopt the new pattern of Boehme et al. Structures in need of refinement: Orthorhombic U{sub 2}Te{sub 3}:Adopt pattern calculated here over 34--807. Hexagonal U{sub 7}Te{sub 12}: Adopt pattern calculated here but retain 24--1368. Orthorhombic UTe{sub 1.78}: Adopt pattern calculated here and retain our modified 21--1404 reported for U{sub 4}Te{sub 7}. Orthorhombic UTe{sub 2.5}: Adopt pattern calculated here. Orthorhombic UTe{sub 3.4}: Accept recent pattern of Boehme et al. Phases for which no structures or reliable patterns exist: Orthorhombic U{sub 3}Te{sub 4}: no published pattern. Tetragonal U{sub 3}Te{sub 5}: three patterns 21--1407, 34--766 and 34--896 exit but …
Date: October 3, 1990
Creator: Snyder, Robert L.; Nichols, Monte C. & Boehme, Dale R.
Object Type: Report
System: The UNT Digital Library
Experimental evaluation of vertically versus horizontally split yokes for SSC (Superconducting Super Collider) dipole magnets (open access)

Experimental evaluation of vertically versus horizontally split yokes for SSC (Superconducting Super Collider) dipole magnets

The yoke in SSC dipole magnets provides mechanical support to the collared coil as well as serving as a magnetic element. The yoke and skin are used to increase the coil prestress and reduce collar deflections under excitation. Yokes split on the vertical or horizontal mid-plane offer different advantages in meeting these objectives. To evaluate the relative merits of the two configuration a 1.8 m model dipole was assembled and tested first with horizontally split and then with vertically split yoke laminations. The magnet was extensively instrumented to measure azimuthal and axial stresses in the coil and the cold mass skin resulting from cooldown and excitation. Mechanical behavior of this magnet with each configuration is compared with that of other long and short models and with calculations. 13 refs., 5 figs.
Date: May 3, 1990
Creator: Strait, J.; Coulter, K.; Jaffery, T.; Kerby, J.; Koska, W. & Lamm, M.J.
Object Type: Article
System: The UNT Digital Library
MGA (Multi-Group Analysis): A Gamma-Ray Spectrum Analysis Code for Determining Plutonium Isotopic Abundances (open access)

MGA (Multi-Group Analysis): A Gamma-Ray Spectrum Analysis Code for Determining Plutonium Isotopic Abundances

Nondestructive measurements of x-ray and gamma-ray emissions can be used to analyze a sample for plutonium. This report describes the methods and algorithms we have developed for analyzing gamma-ray spectra obtained by using a germanium detector system to accurately determine the relative abundances of various actinide isotopes in a sample. Our methodology requires no calibrations and can be used to measure virtually any size and type of plutonium sample. Measurement times can be as short as a few minutes; measurements are frequently accurate to within 1%. Our methods have been programmed into a computerized analysis code called MGA (Multi-Group Analysis). Our current versions can be run on personal computers (IBM type) and on the DEC VAX microcomputer. Spectral analysis times are usually far less than a minute. 28 refs., 26 figs., 1 tab.
Date: April 3, 1990
Creator: Gunnink, R
Object Type: Report
System: The UNT Digital Library
(Coordinated research programs in nuclear medicine) (open access)

(Coordinated research programs in nuclear medicine)

The traveler visited the Clinic for Nuclear Medicine at the University of Bonn, West Germany, to review, organize, and plan collaborative studies. He also met with the editorial board of the journal NucCompact -- European/American Communications in Nuclear Medicine, on which he serves as US editor. He also visited colleagues at the Cyclotron Research Center (CRC) at the University of Liege, Belgium, to coordinate clinical applications of the ultrashort-lived iridium-191m radionuclide obtained from the osmium-190/iridium-191m generator system. The traveler planned and coordinated continuing collaboration with colleagues at the CRC for further applications of this generator system. He also visited the University of Metz, Metz, France, to organize a three-center project for the synthesis and evaluation of various receptor-specific cerebral imaging agents, involving the Oak Ridge National Laboratory (ORNL), CRC, and the University of Metz.
Date: October 3, 1990
Creator: Knapp, F. F. Jr.
Object Type: Report
System: The UNT Digital Library
Cherokeean/Herald (Rusk, Tex.), Vol. 142, No. 13, Ed. 1 Thursday, May 3, 1990 (open access)

Cherokeean/Herald (Rusk, Tex.), Vol. 142, No. 13, Ed. 1 Thursday, May 3, 1990

Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date: May 3, 1990
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Texas Register, Volume 15, Number 50, Pages 3773-3824, July 3, 1990 (open access)

Texas Register, Volume 15, Number 50, Pages 3773-3824, July 3, 1990

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: July 3, 1990
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 15, Number 58, Pages 4411-4469, August 3, 1990 (open access)

Texas Register, Volume 15, Number 58, Pages 4411-4469, August 3, 1990

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: August 3, 1990
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 15, Number 26, Pages 1867-1904, April 3, 1990 (open access)

Texas Register, Volume 15, Number 26, Pages 1867-1904, April 3, 1990

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: April 3, 1990
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History