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[A-1 Office Supply]
Photograph of the R. F. Scott building, which houses the A-1 Office Supply store, on the Fountain Square in Paris, Texas.
Date:
November 13, 2008
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
[A-1 Office Supply]
Photograph of the exterior of the A-1 Office Supply store on Lamar Avenue in Paris, Texas. The Grand Theater and other buildings are visible in the background.
Date:
November 13, 2008
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
2-MV electrostatic quadrupole injector for heavy-ion fusion
High current and low emittance are principal requirements for heavy-ion injection into a linac driver for inertial fusion energy. An electrostatic quadrupole (ESQ) injector is capable of providing these high charge density and low emittance beams. We have modified the existing 2-MV Injector to reduce beam emittance and to double the pulse length. We characterize the beam delivered by the modified injector to the High Current Transport Experiment (HCX) and the effects of finite rise time of the extraction voltage pulse in the diode on the beam head. We demonstrate techniques for mitigating aberrations and reducing beam emittance growth in the injector.
Date:
November 10, 2004
Creator:
Bieniosek, F. M.; Celata, C. M.; Henestroza, E.; Kwan, J. W.; Prost, L. & Seidl, P. A.
Object Type:
Article
System:
The UNT Digital Library
3-D Reservoir and Stochastic Fracture Network Modeling for Enhanced Oil Recovery, Circle Ridge Phosphoria/Tensleep Reservoir, Wind River Reservation, Arapaho and Shoshone Tribes, Wyoming
This report describes the results made in fulfillment of contract DE-FG26-00BC15190, ''3-D Reservoir and Stochastic Fracture Network Modeling for Enhanced Oil Recovery, Circle Ridge Phosphoria/Tensleep Reservoir, Wind River Reservation, Arapaho and Shoshone Tribes, Wyoming''. The goal of this project is to improve the recovery of oil from the Tensleep and Phosphoria Formations in Circle Ridge Oilfield, located on the Wind River Reservation in Wyoming, through an innovative integration of matrix characterization, structural reconstruction, and the characterization of the fracturing in the reservoir through the use of discrete fracture network models. Fields in which natural fractures dominate reservoir permeability, such as the Circle Ridge Field, often experience sub-optimal recovery when recovery processes are designed and implemented that do not take advantage of the fracture systems. For example, a conventional waterflood in a main structural block of the Field was implemented and later suspended due to unattractive results. It is estimated that somewhere less than 20% of the OOIP in the Circle Ridge Field have been recovered after more than 50 years' production. Marathon Oil Company identified the Circle Ridge Field as an attractive candidate for several advanced IOR processes that explicitly take advantage of the natural fracture system. These processes require …
Date:
November 18, 2002
Creator:
La Pointe, Paul; Hermanson, Jan; Parney, Robert; Eiben, Thorsten; Dunleavy, Mike; Steele, Ken et al.
Object Type:
Report
System:
The UNT Digital Library
3-D UNSTRUCTURED HEXAHEDRAL-MESH Sn TRANSPORT METHODS
This is the final report of a three-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). We have developed a method for solving the neutral-particle transport equation on 3-D unstructured hexahedral meshes using a S{sub n} discretization in angle in conjunction with a discontinuous finite-element discretization in space and a multigroup discretization in energy. Previous methods for solving this equation in 3-D have been limited to rectangular meshes. The unstructured-mesh method that we have developed is far more efficient for solving problems with complex 3-D geometric features than rectangular-mesh methods. In spite of having to make several compromises in our spatial discretization technique and our iterative solution technique, our method has been found to be both accurate and efficient for a broad class of problems.
Date:
November 1, 2000
Creator:
Morel, J. & McGhee, J.
Object Type:
Report
System:
The UNT Digital Library
3-Dimensional Flow Modeling of a Proposed Hanford Waste Treatment Plant Ion-Exchange Column Design
Historically, it has been assumed that the inlet and outlet low activity waste plenums would be designed such that a nearly uniform velocity profile would be maintained at every axial cross-section (i.e., providing nearly 100 percent use of the resin bed). With this proposed design, we see a LAW outlet distributor that results in significant non-axial velocity gradients in the bottom regions of the bed with the potential to reduce the effectiveness'' of the overall resin bed. The magnitude of this efficiency reduction depends upon how far up-gradient of the LAW outlet these non-axial velocities persist and to what extent a ''dead-zone'' is established beneath the LAW outlet. This can impact loading and elution performance of the ion-exchange facility. Currently, no experimental studies are planned. The primary objective of this work was, through modeling, to assess the fluid dynamic impact on ''effective'' resin volume of the full-scale column based on its normal operation using a recently proposed LAW outlet distributor. The analysis effort was limited to 3-D flow only analyses (i.e., no follow on transport analyses) with 3-D particle tracking to approximate the impact that a nonaxial velocity profile would have on bed ''effectiveness''. Additional analyses were performed to estimate …
Date:
November 2002
Creator:
Aleman, Sebastian
Object Type:
Report
System:
The UNT Digital Library
5.2 mW Single-Mode Power from a Coupled-Resonator Vertical-Cavity Laser
None
Date:
November 28, 2000
Creator:
Fischer, A. J.; Choquette, K. D.; Chow, W. W.; Allerman, A. A. & Geib, K. M.
Object Type:
Article
System:
The UNT Digital Library
The 8 O'Clock Arc: A Serendipitous Discovery of a Strongly Lensed Lyman Break Galaxy in the SDSS DR4 Imaging Data
We report on the serendipitous discovery of the brightest Lyman Break Galaxy (LBG) currently known, a galaxy at z = 2.73 that is being strongly lensed by the z = 0.38 Luminous Red Galaxy (LRG) SDSS J002240.91+143110.4. The arc of this gravitational lens system, which we have dubbed the ''8 o'clock arc'' due to its time of discovery, was initially identified in the imaging data of the Sloan Digital Sky Survey Data Release 4 (SDSS DR4); followup observations on the Astrophysical Research Consortium (ARC) 3.5m telescope at Apache Point Observatory confirmed the lensing nature of this system and led to the identification of the arc's spectrum as that of an LBG. The arc has a spectrum and a redshift remarkably similar to those of the previous record-holder for brightest LBG (MS 1512-cB58, a.k.a ''cB58''), but, with an estimated total magnitude of (g,r,i) = (20.0,19.2,19.0) and surface brightness of ({mu}{sub g}, {mu}{sub r}, {mu}{sub i}) = (23.3, 22.5, 22.3) mag arcsec{sup -2}, the 8 o'clock arc is thrice as bright. The 8 o'clock arc, which consists of three lensed images of the LBG, is 162{sup o}(9.6'') long and has a length-to-width ratio of 6:1. A fourth image of the LBG--a counter-image--can …
Date:
November 1, 2006
Creator:
Allam, Sahar S.; Tucker, Douglas L.; Lin, Huan; Diehl, H. Thomas; Annis, James; Buckley-Geer, Elizabeth J. et al.
Object Type:
Article
System:
The UNT Digital Library
9-11 Commission Hearing #5, November 19, 2003, Part 1
Recording of the fifth public hearing held by the National Commission on Terrorist Attacks upon the United States on November 19, 2003 at Drew University in Madison, New Jersey. The Commission heard from New Jersey Governor James E. McGreevey; four panels of business officials and federal, state, and local government representatives; and individuals working to enhance emergency preparedness in the private sector. This section includes the opening statements from Chairman Kean and Governor McGreevey, in addition to the first panel on risks and consequences of Terrorism for the private sector.
Date:
November 19, 2003
Creator:
National Commission on Terrorist Attacks upon the United States
Object Type:
Video
System:
The UNT Digital Library
9-11 Commission Hearing #5, November 19, 2003, Part 2
Recording of the fifth public hearing held by the National Commission on Terrorist Attacks upon the United States on November 19, 2003 at Drew University in Madison, New Jersey. The Commission heard from New Jersey Governor James E. McGreevey; four panels of business officials and federal, state, and local government representatives; and individuals working to enhance emergency preparedness in the private sector. This section includes the panel on skyscraper safety issues from 9-11 family members with testimony from Monica Gabrielle and Sally Regenhard.
Date:
November 19, 2003
Creator:
National Commission on Terrorist Attacks upon the United States
Object Type:
Video
System:
The UNT Digital Library
9-11 Commission Hearing #5, November 19, 2003, Part 3
Recording of the fifth public hearing held by the National Commission on Terrorist Attacks upon the United States on November 19, 2003 at Drew University in Madison, New Jersey. The Commission heard from New Jersey Governor James E. McGreevey; four panels of business officials and federal, state, and local government representatives; and individuals working to enhance emergency preparedness in the private sector. This section includes the panel on public/private initiatives since 9-11, with testimony from Micheal F. Byrne, Dennis J. Reimer, and Richard A. Andrews.
Date:
November 19, 2003
Creator:
National Commission on Terrorist Attacks upon the United States
Object Type:
Video
System:
The UNT Digital Library
9-11 Commission Hearing #5, November 19, 2003, Part 4
Recording of the fifth public hearing held by the National Commission on Terrorist Attacks upon the United States on November 19, 2003 at Drew University in Madison, New Jersey. The Commission heard from New Jersey Governor James E. McGreevey; four panels of business officials and federal, state, and local government representatives; and individuals working to enhance emergency preparedness in the private sector. This section includes multimedia presentations of initiatives across the United States from Kings County, Washington, and the International Association Assembly Managers and the panel on private sector experience on 9-11 with testimony from William Y. Yun.
Date:
November 19, 2003
Creator:
National Commission on Terrorist Attacks upon the United States
Object Type:
Video
System:
The UNT Digital Library
9-11 Commission Hearing #5, November 19, 2003, Part 5
Recording of the fifth public hearing held by the National Commission on Terrorist Attacks upon the United States on November 19, 2003 at Drew University in Madison, New Jersey. The Commission heard from New Jersey Governor James E. McGreevey; four panels of business officials and federal, state, and local government representatives; and individuals working to enhance emergency preparedness in the private sector. This section includes the panel on standards for emergency management and business continuity with testimony from Glenn Corbett and Randall Yim.
Date:
November 19, 2003
Creator:
National Commission on Terrorist Attacks upon the United States
Object Type:
Video
System:
The UNT Digital Library
9-11 Commission Hearing #5, November 19, 2003, Part 6
Recording of the fifth public hearing held by the National Commission on Terrorist Attacks upon the United States on November 19, 2003 at Drew University in Madison, New Jersey. The Commission heard from New Jersey Governor James E. McGreevey; four panels of business officials and federal, state, and local government representatives; and individuals working to enhance emergency preparedness in the private sector. This section includes the panel on future strategies for private sector preparedness with testimony from William G. Raisch, Peter R. Orszag, James Haviaris, and Thomas Susman.
Date:
November 19, 2003
Creator:
National Commission on Terrorist Attacks upon the United States
Object Type:
Video
System:
The UNT Digital Library
9/11 Commission Recommendations: The Senate Confirmation Process for Presidential Nominees
On July 22, 2004, the National Commission on Terrorist Attacks Upon the United States, known as the 9/11 Commission, issued its final report, detailing the events up to and including the September 11, 2001 terrorist attacks upon the United States. The 9/11 Commission recommended that the Senate adopt rules requiring hearings and votes to confirm or reject national security nominees within 30 days of their submission at the start of each new presidential administration. Implementing the commission's proposal would involve imposing new restrictions on both the power of committee chairs to control the agenda of their committees and the rights of Senators to delay or block nominations through holds and extended debate. This report discusses in detail this proposal, how it could be implemented, and the potential effects of its implementation.
Date:
November 22, 2004
Creator:
Palmer, Betsy
Object Type:
Report
System:
The UNT Digital Library
17.5% p-Type Silicon Heterojunction Solar Cells with HWCVD a-Si:H as the Emitter and Back Contact
Thin hydrogenated amorphous silicon (a-Si:H) layers deposited by hot-wire chemical vapor deposition (HWCVD) are used as both emitters and back contacts in silicon heterojunction solar cells. Low interface recombination velocity and high open-circuit voltage are achieved by a low substrate temperature (<150 deg C) intrinsic a-Si:H deposition which ensures immediate amorphous silicon deposition. This is followed by deposition of doped a-Si:H at a higher temperature (>200 deg C) which appears to improve dopant activation. With an i/n a-Si:H emitter, we obtain a confirmed efficiency of 17.1% on textured p-type float-zone (FZ) silicon with a screen-printed aluminum back-surface-field (Al-BSF) contact. Employing a-Si:H as both the front emitter and the back contact, we achieve a confirmed efficiency of 17.5%, the highest reported efficiency for a p-type c-Si based heterojunction solar cell.
Date:
November 1, 2005
Creator:
Wang, T. H.; Page, M. R.; Iwaniczko, E.; Wang, Q.; Xu,Y.; Yan, Y. et al.
Object Type:
Article
System:
The UNT Digital Library
20-MW Magnicon for ILC
The 1.3 GHz RF power to drive ILC is now planned to be supplied by 600-1200, 10-MW peak power multi-beam klystrons. In this project, a conceptual design for 1.3 GHz magnicons with 20 MW peak power was developed as an alternative to the klystrons, with the possibility of cutting in half the numbers of high-power tubes and associated components. Design of a conventional magnicon is described, using TM110 modes in all cavities, as well as design of a modified magnicon with a TE111 mode output cavity. The latter has the advantage of much lower surface fields than the TM110 mode, with no loss of output power or electronic efficiency.
Date:
November 29, 2006
Creator:
Hirshfield, Jay L.
Object Type:
Report
System:
The UNT Digital Library
20% Partial Siberian Snake in the AGS.
An 11.4% partial Siberian snake was used to successfully accelerate polarized proton through a strong intrinsic depolarizing spin resonance in the AGS. No noticeable depolarization was observed. This opens up the possibility of using a 20% to 30% partial Siberian snake in the AGS to overcome all weak and strong depolarizing spin resonances. Some design and operation issues of the new partial Siberian snake are discussed.
Date:
November 6, 2002
Creator:
Huang, H.; Bai, M.; Brown, K. A.; Glenn, W.; Luccio, A. U.; MacKay, W. W. et al.
Object Type:
Article
System:
The UNT Digital Library
A 20 - Red River Army Depot, TX, Community Presentation
Red River Army Depot, Texas, local community presentation of 21 June 05
Date:
November 8, 2005
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
[24-Hour Film Feast, 1 of 3]
Video recording from The Black Academy of Arts and Letters recorded during their 24-Hour Film Festival held on November 16th, 2001. The BetaCam footage shows interviews and an audience dialogue with black actors and directors.
Date:
November 16, 2001
Creator:
unknown
Object Type:
Video
System:
The UNT Digital Library
[24-Hour Film Feast, 3 if 3]
Video recording from The Black Academy of Arts and Letters recorded during their 24-Hour Film Festival held on November 16th, 2001. The BetaCam footage shows interviews and an audience dialogue with black actors and directors.
Date:
November 16, 2001
Creator:
unknown
Object Type:
Video
System:
The UNT Digital Library
[24-Hour Film Feast: Cicely Tyson / Antonio Fargas, tape 3 of 3]
Video footage from The Black Academy of Arts and Letters recorded during their 24-Hour Film Feast of 2001 featuring Cicely Tyson and Antonio Fargas. The VHS footage shows Fargas holding a dialogue and speaking to an audience at the Clarence Muse Café Theatre on November 16th, 2001.
Date:
November 16, 2001
Creator:
unknown
Object Type:
Video
System:
The UNT Digital Library
[24-Hour Film Feast: Ernest Harden Jr and Cicely Tyson, tape 2 of 3]
Video footage from The Black Academy of Arts and Letters recorded during their 24-Hour Film Feast of 2001 featuring Ernest Harden Jr. and Cicely Tyson . The VHS footage shows both individuals holding a dialogue and speaking to an audience at the Clarence Muse Café Theatre on November 16th, 2001. Ernest leaves the stage around the 37:00 minute mark where he is then followed by Cicely Tyson who speaks until end of the tape.
Date:
November 16, 2001
Creator:
unknown
Object Type:
Video
System:
The UNT Digital Library
[24-Hour Film Feast, Featuring Robert Townsend, Part 1 of 2]
Video recording from The Black Academy of Arts and Letters recorded during their 24-Hour Film Feast event in 2004. This video features a panel of actors, producers, and artists having a discussion with a live audience about films by Robert Townsend. This video is Part 1 of 2 of the event.
Date:
November 13, 2004
Creator:
unknown
Object Type:
Video
System:
The UNT Digital Library