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89,620 Matching Results

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Results: 1 - 24 of 89,620 next
Best Match Title Creator Date Created (Newest) Date Created (Oldest) Date Added (Newest) Date Added (Oldest)
[Letter from 1998 WASP Reunion Committee to All WASP, May 7, 1996] (open access)

[Letter from 1998 WASP Reunion Committee to All WASP, May 7, 1996]

Letter from 1998 WASP Reunion Committee to All WASP discussing the 1998 Sweetwater WASP Reunion.
Date: May 7, 1996
Creator: 1998 WASP Reunion Committee
Object Type: Letter
System: The Portal to Texas History
[Letter from 1998 WASP Reunion Committee to All WASP, May 7, 1996] (open access)

[Letter from 1998 WASP Reunion Committee to All WASP, May 7, 1996]

Letter from 1998 WASP Reunion Committee to All WASP discussing plans for the National WASP Conference September 26-27, 1998 in Sweetwater, Texas.
Date: May 7, 1996
Creator: 1998 WASP Reunion Committee
Object Type: Letter
System: The Portal to Texas History
[Photograph 2012.201.TP0392.0524]

[Photograph 2012.201.TP0392.0524]

Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date: March 7, 1986
Creator: 3rd Party
Object Type: Photograph
System: The Gateway to Oklahoma History
[Photograph 2012.201.TP0392.0587]

[Photograph 2012.201.TP0392.0587]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Huntington Beach, Cal. --June 2 An estimated three hundred trailer park residents near 1st street and Coast Hwy., were evacuated from their homes early this morning when this gusher erupted from an oil well."
Date: July 7, 1955
Creator: 3rd Party
Object Type: Photograph
System: The Gateway to Oklahoma History
[Photograph 2012.201.TP0392.0589]

[Photograph 2012.201.TP0392.0589]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "This is the BLUE PRINTER for color project showing California state forestry conservation crew cleaning oil-soaked Santa Barbara Beach yesterday."
Date: February 7, 1969
Creator: 3rd Party
Object Type: Photograph
System: The Gateway to Oklahoma History
[Photograph 2012.201.TP0392.0805]

[Photograph 2012.201.TP0392.0805]

Photograph used for a story in the Daily Oklahoman newspaper.
Date: December 7, 1930
Creator: 3rd Party
Object Type: Photograph
System: The Gateway to Oklahoma History
Local Effects of Biased Electrodes in the Divertor of NSTX (open access)

Local Effects of Biased Electrodes in the Divertor of NSTX

The goal of this paper is to characterize the effects of small non-axisymmetric divertor plate electrodes on the local scrape-off layer plasma. Four small rectangular electrodes were installed into the outer divertor plates of NSTX. When the electrodes were located near the outer divertor strike point and biased positively, there was an increase in the nearby probe currents and probe potentials and an increase in the LiI light emission at the large major radius end of these electrodes. When an electrode located farther outward from the outer divertor strike point was biased positively, there was sometimes a significant decrease in the LiI light emission at the small major radius end of this electrode, but there were no clear effects on the nearby probes. No non-local effects were observed with the biasing of these electrodes.
Date: May 7, 2012
Creator: : S. Zweben, M.D. Campanell, B.C. Lyons, R.J. Maqueda, Y. Raitses, A.L. Roquemore and F. Scotti
Object Type: Report
System: The UNT Digital Library
[Photograph 2012.201.B0239.0682]

[Photograph 2012.201.B0239.0682]

Photograph taken for a newspaper owned by the Oklahoma Publishing Company.
Date: April 7, 1950
Creator: A "Batson Photo"
Object Type: Photograph
System: The Gateway to Oklahoma History
[Order Form for A-B-C Racket Store, September 7, 1948] (open access)

[Order Form for A-B-C Racket Store, September 7, 1948]

Order form prepared for Daniel W. Kempner by A-B-C Racket Store for cleaning supplies, listing itemized charges and balance.
Date: September 7, 1948
Creator: A-B-C Racket Store
Object Type: Text
System: The Portal to Texas History
[Letter from A. Carli & Bro. to Ferdinand Louis Huth, July 7, 1871] (open access)

[Letter from A. Carli & Bro. to Ferdinand Louis Huth, July 7, 1871]

Letter from A. Carli & Bro. to [Ferdinand] Louis Huth regarding legal action being taken by Louis Haas over claimed land. Signed A. Carli & Bro. on July 7, 1871 in Castroville.
Date: July 7, 1871
Creator: A. Carli & Bro.
Object Type: Letter
System: The Portal to Texas History
Physical effects of infrared quark eigenmodes in LQCD (open access)

Physical effects of infrared quark eigenmodes in LQCD

A truncated determinant algorithm is used to study the physical effects of the quark eigenmodes associated with eigenvalues below 300 MeV. This initial study focuses on coarse lattices (with O(a{sup 2}) improved gauge action), light internal quark masses and large physical volumes. Four bellweather full QCD processes are discussed: topological charge distributions, the eta prime propagator, string breaking as observed in the static energy and the rho decay into two pions.
Date: October 7, 1999
Creator: A. Duncan, E. Eichten and H. Thacker
Object Type: Article
System: The UNT Digital Library
[Invoice for 61 UC, May 1963] (open access)

[Invoice for 61 UC, May 1963]

Invoice for items sold to L. A. Adoue by A. Stanley & No. Company, including 2 galloons of 61 UC worth $7.94.
Date: May 7, 1953
Creator: A. Stanley & No Company
Object Type: Text
System: The Portal to Texas History
[Invoice for Items Sold to D. W. Kempner, August 1948] (open access)

[Invoice for Items Sold to D. W. Kempner, August 1948]

Invoice for items sold to Mrs. D. W. Kempner by A.Wiskemann-Knecht A.G., including table stoves, tea stoves and candle boxes for 90 Swiss Franc.
Date: August 7, 1948
Creator: A.Wiskemann-Knecht A.G.
Object Type: Text
System: The Portal to Texas History
GLASS FORMULATION TESTING TO INCREASE SULFATE INCORPORATION - Final Report VSL-04R4960-1, Rev 0, 2/28/05, Vitreous State Laboratory, The Catholic University of American, Washington, D.C. (open access)

GLASS FORMULATION TESTING TO INCREASE SULFATE INCORPORATION - Final Report VSL-04R4960-1, Rev 0, 2/28/05, Vitreous State Laboratory, The Catholic University of American, Washington, D.C.

About 50 million gallons of high-level mixed waste is currently in storage in underground tanks at The United States Department of Energy's (DOE's) Hanford site in the State of Washington. The Hanford Tank Waste Treatment and Immobilization Plant (WTP) will provide DOE's Office of River Protection (ORP) with a means of treating this waste by vitrification for subsequent disposal. The tank waste will be separated into low- and high-activity fractions, which will then be vitrified respectively into Immobilized Low Activity Waste (ILAW) and Immobilized High Level Waste (IHLW) products. The ILAW product will be disposed of in an engineered facility on the Hanford site while the IHLW product will be directed to the national deep geological disposal facility for high-level nuclear waste. The ILAW and IHLW products must meet a variety of requirements with respect to protection of the environment before they can be accepted for disposal. The Office of River Protection is currently examining options to optimize the Low Activity Waste (LAW) facility and the LAW glass waste form. One option under evaluation is to enhance the waste processing rate of the vitrification plant currently under construction. It is likely that the capacity of the LAW vitrification plant can …
Date: February 7, 2012
Creator: AA, KRUGER & KS, MATLACK
Object Type: Report
System: The UNT Digital Library
SMALL-SCALE MELTER TESTING WITH LAW SIMULANTS TO ASSESS THE IMPACT OF HIGHER TEMPERATURE MELTER OPERATIONS - Final Report, VSL-04R49801-1, Rev. 0, 2/13/03, Vitreous State Laboratory, The Catholic University of America, Washington, D.C. (open access)

SMALL-SCALE MELTER TESTING WITH LAW SIMULANTS TO ASSESS THE IMPACT OF HIGHER TEMPERATURE MELTER OPERATIONS - Final Report, VSL-04R49801-1, Rev. 0, 2/13/03, Vitreous State Laboratory, The Catholic University of America, Washington, D.C.

About 50 million gallons of high-level mixed waste is currently in storage in underground tanks at The United States Department of Energy's (DOE's) Hanford site in the State of Washington. The Hanford Tank Waste Treatment and Immobilization Plant (WTP) will provide DOE's Office of River Protection (ORP) with a means of treating this waste by vitrification for subsequent disposal. The tank waste will be separated into low- and high-activity fractions, which will then be vitrified respectively into Immobilized Low Activity Waste (ILAW) and Immobilized High Level Waste (IHLW) products. The ILAW product will be disposed of in an engineered facility on the Hanford site while the IHL W product will be directed to the national deep geological disposal facility for high-level nuclear waste. The ILAW and IHLW products must meet a variety of requirements with respect to protection of the environment before they can be accepted for disposal. The Office of River Protection is currently examining options to optimize the Low Activity Waste (LAW) facility and the LAW glass waste form. One option under evaluation is to enhance the waste processing rate of the vitrification plant currently under construction. It is likely that the capacity of the LAW vitrification plant …
Date: February 7, 2012
Creator: AA, KRUGER & KS, MATLACK
Object Type: Report
System: The UNT Digital Library
EFFECT OF GLASS-BATCH MAKEUP ON THE MELTING PROCESS (open access)

EFFECT OF GLASS-BATCH MAKEUP ON THE MELTING PROCESS

The response of a glass batch to heating is determined by the batch makeup and in turn determines the rate of melting. Batches formulated for a high-alumina nuclear waste to be vitrified in an all-electric melter were heated at a constant temperature-increase rate to determine changes in melting behavior in response to the selection of batch chemicals and silica grain-size as well as the addition of heat-generating reactants. The type of batch materials and the size of silica grains determine how much, if any, primary foam occurs during melting. Small quartz grains, 5 {micro}m in size, caused extensive foaming because their major portion dissolved at temperatures <800 C, contributing to the formation of viscous glass forming melt that trapped evolving batch gases. Primary foam did not occur in batches with larger quartz grains, {+-}75 {micro}m in size, because their major portion dissolved at temperatures >800 C when batch gases no longer evolved. The exothermal reaction of nitrates with sucrose was ignited at a temperature as low as 160 C and caused a temporary jump in temperature of several hundred degrees. Secondary foam, the source of which is oxygen from redox reactions, occurred in all batches of a limited composition variation …
Date: December 7, 2010
Creator: AA, KRUGER & P, HRMA
Object Type: Article
System: The UNT Digital Library
GLASSES CONTAINING IRON (II III) OXIDES FOR IMMOBILIZATION OF RADIOACTIVE TECHNETIUM (open access)

GLASSES CONTAINING IRON (II III) OXIDES FOR IMMOBILIZATION OF RADIOACTIVE TECHNETIUM

Technetium-99 (Tc-99) has posed serious environmental threats as US Department of Energy's high-level waste. This work reports the vitrification of Re, as surrogate for Tc-99, by iron-borosilicate and iron-phosphate glasses, respectively. Iron-phosphate glasses can dissolve Re as high as {approx} 1.2 wt. %, which can become candidate waste forms for Tc-99 disposal, while borosilicate glasses can retain less than 0.1 wt. % of Re due to high melting temperature and long melting duration. Vitrification of Re as Tc-99's mimic was investigated using iron-borosilicate and iron-phosphate glasses. The retention of Re in borosilicate glasses was less than 0.1 wt. % and more than 99 wt. % of Re were volatilized due to high melting temperature and long melting duration. Because the retention of Re in iron-phosphate glasses is as high as 1.2 wt. % and the volatilization is reduced down to {approx}50 wt. %, iron-phosphate glasses can be one of the glass waste form candidates for Tc (or Re) disposal. The investigations of chemical durability and leaching test of iron-phosphate glasses containing Re are now underway to test the performance of the waste form.
Date: November 7, 2011
Creator: AA, KRUGER; J, HEO; K, XU; JK, CHOI; PR, HRMA & W, UM
Object Type: Article
System: The UNT Digital Library
EVALUATION OF TEMPORAL VARIATIONS IN HYDRAULIC CAPTURE DUE TO CHANGING FLOW PATTERNS USING MAPPING AND MODELING TECHNIQUES (open access)

EVALUATION OF TEMPORAL VARIATIONS IN HYDRAULIC CAPTURE DUE TO CHANGING FLOW PATTERNS USING MAPPING AND MODELING TECHNIQUES

Robust performance evaluation represents one of the most challenging aspects of groundwater pump-and-treat (P&T) remedy implementation. In most cases, the primary goal of the P&T system is hydraulic containment, and ultimately recovery, of contaminants to protect downgradient receptors. Estimating the extent of hydraulic containment is particularly challenging under changing flow patterns due to variable pumping, boundaries and/or other conditions. We present a systematic approach to estimate hydraulic containment using multiple lines of evidence based on (a) water-level mapping and (b) groundwater modeling. Capture Frequency Maps (CFMs) are developed by particle tracking on water-level maps developed for each available water level data set using universal kriging. In a similar manner, Capture Efficiency Maps (CEMs) are developed by particle tracking on water-levels calculated using a transient groundwater flow model: tracking is undertaken independently for each stress period using a very low effective porosity, depicting the 'instantaneous' fate of each particle each stress period. Although conceptually similar, the two methods differ in their underlying assumptions and their limitations: their use together identifies areas where containment may be reliable (i.e., where the methods are in agreement) and where containment is uncertain (typically, where the methods disagree). A field-scale example is presented to illustrate these …
Date: April 7, 2011
Creator: AA, SPILIOTOPOULOS; LC, SWANSON; R, SHANNON & MJ, TONKIN
Object Type: Article
System: The UNT Digital Library
Simulation of a Production Facility with an Automated Transport System (open access)

Simulation of a Production Facility with an Automated Transport System

A model was needed to assess material throughput and validate the conceptual design of a production facility, including equipment lists and layout. The initial desire was to use a commercially available discrete event simulation package. However, the available software was found to be too limited in capability. Database interface software was used to develop autonomous intelligent manufacturing workstations and material transporters. The initial Extend model used to assess material throughput and develop equipment lists for the preconceptual design effort was upgraded with software add-ons from Simulation Dynamics, Inc. (SDI). Use of the SDI database interface allowed the upgraded model to include: 1. a material mass balance at any level of detail required by the user, and 2. a transport system model that includes all transport system movements, time delays, and transfers between systems. This model will assist in evaluating transport system capacity, sensitive time delays in the system, and optimal operating strategies. An additional benefit of using the SDI database interface is dramatically improved run time performance. This allows significantly more runs to be completed to provide better statistics for overall plant performance. The model has all system and process parameters entered into sub-component accessible tables. All information for the …
Date: April 7, 2004
Creator: ABRAMCZYK, GLENN
Object Type: Report
System: The UNT Digital Library
Search for Contact Interactions in Dimuon Events From $Pp$ Collisions at $\sqrt{s}=7$ TeV With the ATLAS Detector (open access)

Search for Contact Interactions in Dimuon Events From $Pp$ Collisions at $\sqrt{s}=7$ TeV With the ATLAS Detector

None
Date: June 7, 2013
Creator: Aad, Georges
Object Type: Article
System: The UNT Digital Library
Search for Extra Dimensions Using Diphoton Events in 7 TeV Proton-Proton Collisions with the ATLAS Detector (open access)

Search for Extra Dimensions Using Diphoton Events in 7 TeV Proton-Proton Collisions with the ATLAS Detector

None
Date: May 7, 2013
Creator: Aad, Georges
Object Type: Article
System: The UNT Digital Library
Temperature tests of high frequency SLIFER oscillator, LEA73-2176. [For monitoring underground nuclear detonations at Nevada Test Site] (open access)

Temperature tests of high frequency SLIFER oscillator, LEA73-2176. [For monitoring underground nuclear detonations at Nevada Test Site]

SLIFER (Short Location Indication by Frequency of Electrical Resonance) systems measure stress wave velocity in solid or liquid materials. They monitor underground nuclear detonations at the Nevada Test Site (NTS). A shorted length of coaxial cable is a component in an oscillator's tank circuit. This sensor cable is inductive when less than one-fourth wavelength long at the oscillator's resonant frequency. The stress wave from a detonation crushes and shorts this sensor cable. As the short proceeds, inductance decreases and oscillator frequency increases. Later we convert frequency vs time to shock-front position vs time. Some doubt existed about the reliable operation of the oscillators in cold weather. Therefore these tests were conducted to check their reliability under several conditions: (1) at temperatures from -40/sup 0/ to 60/sup 0/C; (2) with three sensor cable lengths; (3) with sensor cables shorted or open at the far end; and (4) at two input power voltages. Results are presented.
Date: June 7, 1976
Creator: Aaron, Carl C., Jr.
Object Type: Report
System: The UNT Digital Library
Oral History Interview with Richard Abalos, July 7, 2016 captions transcript

Oral History Interview with Richard Abalos, July 7, 2016

Richard C. Abalos grew up in Rankin, Texas. After graduating early from high school, Abalos moved to Odessa, Texas where he attended Odessa College and worked for a law form as an investigator and aide. Before obtaining an undergraduate degree, Abalos entered law school at St. Mary’s University in San Antono, Texas. After law school, he was drafted into the military. Upon returning to Odessa, he became the city’s first Mexican American attorney and handled several civil rights cases, including the nationally recognized Larry Lozano police beating that galvanized the region’s Chicano Movement.
Date: July 7, 2016
Creator: Abalos, Richard; Wisely, Karen & Zapata, Joel
Object Type: Video
System: The Portal to Texas History
Early Fermi Gamma-ray Space Telescope Observations of the Quasar 3C454.3 (open access)

Early Fermi Gamma-ray Space Telescope Observations of the Quasar 3C454.3

This is the first report of Fermi Gamma-ray Space Telescope observations of the quasar 3C 454.3, which has been undergoing pronounced long-term outbursts since 2000. The data from the Large Area Telescope (LAT), covering 2008 July 7-October 6, indicate strong, highly variable {gamma}-ray emission with an average flux of {approx} 3 x 10{sup -6} photons cm{sup -2} s{sup -1}, for energies > 100 MeV. The {gamma}-ray flux is variable, with strong, distinct, symmetrically-shaped flares for which the flux increases by a factor of several on a time scale of about three days. This variability indicates a compact emission region, and the requirement that the source is optically thin to pair-production implies relativistic beaming with Doppler factor {delta} > 8, consistent with the values inferred from VLBI observations of superluminal expansion ({delta} {approx} 25). The observed {gamma}-ray spectrum is not consistent with a simple power-law, but instead steepens strongly above {approx} 2 GeV, and is well described by a broken power-law with photon indices of {approx} 2.3 and {approx} 3.5 below and above the break, respectively. This is the first direct observation of a break in the spectrum of a high luminosity blazar above 100 MeV, and it is likely direct …
Date: May 7, 2009
Creator: Abdo, A. A.
Object Type: Article
System: The UNT Digital Library