Partner
UNT Libraries Special Collections
874
UNT Libraries Government Documents Department
211
Oklahoma Historical Society
46
National Museum of the Pacific War/Admiral Nimitz Foundation
30
Sterling Municipal Library
12
Alvin Community College
6
Livingston Municipal Library
5
Archer Public Library
4
Lee College
4
Sammy Brown Library
4
43 More
Collection
The Black Academy of Arts and Letters Records
809
Office of Scientific & Technical Information Technical Reports
130
Texas Digital Newspaper Program
101
Tocker Foundation Grant
57
Oklahoma Digital Newspaper Program
51
LGBT Collections
50
Congressional Research Service Reports
43
National Museum of the Pacific War Oral History Collection
30
National Museum of the Pacific War Digital Archive
30
Texas Stonewall Democratic Caucus Papers (The Dallas Way)
29
77 More
Degree Department
Country
Decade
Year
Month
Day
Language
1,277 Matching Results
Results open in a new window/tab.
An Overview of High Energy Short Pulse Technology for Advanced Radiography of Laser Fusion Experiments
The technical challenges and motivations for high-energy, short-pulse generation with NIF-class, Nd:glass laser systems are reviewed. High energy short pulse generation (multi-kilojoule, picosecond pulses) will be possible via the adaptation of chirped pulse amplification laser techniques on the NIF. Development of meter-scale, high efficiency, high-damage-threshold final optics is a key technical challenge. In addition, deployment of HEPW pulses on NIF is constrained by existing laser infrastructure and requires new, compact compressor designs and short-pulse, fiber-based, seed-laser systems. The key motivations for high energy petawatt pulses on NIF is briefly outlined and includes high-energy, x-ray radiography, proton beam radiography, proton isochoric heating and tests of the fast ignitor concept for inertial confinement fusion.
Date:
June 18, 2004
Creator:
Barty, C. J.; Key, M.; Britten, J.; Beach, R.; Beer, G.; Brown, C. et al.
Object Type:
Article
System:
The UNT Digital Library
Kinetics of Propagating Phase Transformation in Compressed Bismuth
The authors observed dynamically driven phase transitions in isentropically compressed bismuth. By changing the stress loading conditions they explored two distinct cases one in which the experimental signature of the phase transformation corresponds to phase-boundary crossings initiated at both sample interfaces, and another in which the experimental trace is due to a single advancing transformation front in the bulk of the material. They introduce a coupled kinetics-hydrodynamics model that for this second case enables them, under suitable simplifying assumptions, to directly extract characteristic transition times from the experimental measurements.
Date:
August 18, 2004
Creator:
Bastea, M.; Bastea, S.; Emig, J.; Springer, P. & Reisman, D.
Object Type:
Article
System:
The UNT Digital Library
South Carolina Emergency Management and Homeland Security Statutory Authorities Summarized
This report is one of a series that profiles the emergency management and homeland security statutory authorities of the 50 states, the District of Columbia, the Commonwealth of the Northern Mariana Islands, the Commonwealth of Puerto Rico, and three territories (American Samoa, Guam, and the U.S. Virgin Islands). Each profile identifies the more significant elements of state statutes, generally as codified. This report focuses on the state of South Carolina.
Date:
June 18, 2004
Creator:
Bea, Keith; Runyon, L. Cheryl & Warnock, Kae M.
Object Type:
Report
System:
The UNT Digital Library
South Dakota Emergency Management and Homeland Security Statutory Authorities Summarized
This report is one of a series that profiles the emergency management and homeland security statutory authorities of the 50 states, the District of Columbia, the Commonwealth of the Northern Mariana Islands, the Commonwealth of Puerto Rico, and three territories (American Samoa, Guam, and the U.S. Virgin Islands). Each profile identifies the more significant elements of state statutes, generally as codified. This report focuses on the state of South Dakota.
Date:
June 18, 2004
Creator:
Bea, Keith; Runyon, L. Cheryl & Warnock, Kae M.
Object Type:
Report
System:
The UNT Digital Library
Microstructural Origins of Dynamic Fracture in Ductile Metals
Dynamic fracture is a material failure process at high strain-rates. Here, we limit our discussion to spallation fracture during shock wave loading. When a compressive shock wave reflects from a free surface, internal states of tension are created. If this tension exceeds the rupture strength of the material, it fails by nucleating and growing microscopic voids in ductile metals and cracks in brittle solids. This effect, known as spallation, was reported by Hopkinson in 1872 [1]. Rinehart and Pierson [2] give an historical introduction to spallation and other aspects of high strain-rate deformation. This phenomenology of the nucleation and growth of microscopic voids is common to all fracture in ductile metals, including dynamic fracture. The importance of pulse duration was not fully appreciated until the 1960's through the work of Butcher and colleagues [3, 4], leading to the concept of cumulative damage. This concept of damage accumulation was put on a strong experimental foundation by Barbee et al. [5], who performed gas gun recovery experiments and tediously measured the size and distribution of microscopic flaws using 2D microscopy. The resulting continuum material model of dynamic fracture is known as the SRI-NAG model [6, 7], for Nucleation And Growth. In a …
Date:
February 18, 2004
Creator:
Belak, J; Cazamias, J U; Fivel, M; Haupt, D; Kinney, J H; Kumar, M et al.
Object Type:
Report
System:
The UNT Digital Library
Accelerating the Reduction of Excess Russian Highly Enriched Uranium
This paper presents the latest information on one of the Accelerated Highly Enriched Uranium (HEU) Disposition initiatives that resulted from the May 2002 Summit meeting between Presidents George W. Bush and Vladimir V. Putin. These initiatives are meant to strengthen nuclear nonproliferation objectives by accelerating the disposition of nuclear weapons-useable materials. The HEU Transparency Implementation Program (TIP), within the National Nuclear Security Administration (NNSA) is working to implement one of the selected initiatives that would purchase excess Russian HEU (93% 235U) for use as fuel in U.S. research reactors over the next ten years. This will parallel efforts to convert the reactors' fuel core from HEU to low enriched uranium (LEU) material, where feasible. The paper will examine important aspects associated with the U.S. research reactor HEU purchase. In particular: (1) the establishment of specifications for the Russian HEU, and (2) transportation safeguard considerations for moving the HEU from the Mayak Production Facility in Ozersk, Russia, to the Y-12 National Security Complex in Oak Ridge, TN.
Date:
February 18, 2004
Creator:
Benton, J; Wall, D; Parker, E & Rutkowski, E
Object Type:
Article
System:
The UNT Digital Library
The Frequency and Damping of Ion Acoustic Waves in Collisional and Collisionless Two-species Plasma
The dispersion properties of ion acoustic waves (IAW) are sensitive to the strength of ion-ion collisions in multi-species plasma in which the different species usually have differing charge-to-mass ratios. The modification of the frequency and damping of the fast and slow acoustic modes in a plasma composed of light (low Z) and heavy (high Z) ions is considered. In the fluid limit where the light ion scattering mean free path, {lambda}{sub th} is smaller than the acoustic wavelength, {lambda} = 2{pi}/k, the interspecies friction and heat flow carried by the light ions scattering from the heavy ions causes the damping. In the collisionless limit, k{lambda}{sub th} >> 1, Landau damping by the light ions provides the dissipation. In the intermediate regime when k{lambda}{sub th} {approx} 1, the damping is at least as large as the sum of the collisional and Landau damping.
Date:
August 18, 2004
Creator:
Berger, R. L. & Valeo, E. J.
Object Type:
Report
System:
The UNT Digital Library
ULTRA-CLEAN FISCHER-TROPSCH FUELS PRODUCTION AND DEMONSTRATION PROJECT
The Report Abstract provides summaries of the past year's activities relating to each of the main project objectives. Some of the objectives will be expanded on in greater detail further down in the report. The following objectives have their own addition sections in the report: SFP Construction and Fuel Production, Impact of SFP Fuel on Engine Performance, Fleet Testing at WMATA and Denali National Park, Demonstration of Clean Diesel Fuels in Diesel Electric Generators in Alaska, and Economic Analysis. ICRC provided overall project organization and budget management for the project. ICRC held meetings with various project participants. ICRC presented at the Department of Energy's annual project review meeting. The plant began producing fuel in October 2004. The first delivery of finished fuel was made in March of 2004 after the initial start-up period.
Date:
October 18, 2004
Creator:
Bergin, Steve
Object Type:
Report
System:
The UNT Digital Library
High Volume, Low Pressure Drop, Bioaerosol Collector Using a Multi-slit Virtual Impactor
None
Date:
May 18, 2004
Creator:
Bergman, W; Shinn, J; Lochner, R; Sawyer, S; Milanovich, F & Jr, R M
Object Type:
Article
System:
The UNT Digital Library
Hanford Site Environmental Surveillance Master Sampling Schedule for Calendar Year 2004
Environmental surveillance of the Hanford Site and surrounding areas is conducted by the Pacific Northwest National Laboratory (PNNL) for the U.S. Department of Energy (DOE). Sampling is conducted to evaluate levels of radioactive and nonradioactive pollutants in the Hanford environs. This document contains the calendar year 2004 schedules for the routine and non-routine collection of samples for the Surface Environmental Surveillance Project (SESP) and Drinking Water Monitoring Project.
Date:
February 18, 2004
Creator:
Bisping, Lynn E.
Object Type:
Report
System:
The UNT Digital Library
Area Monitoring Dosimeter Program for the Pacific Northwest National Laboratory: Results for CY 2003
Pacific Northwest National Laboratory (PNNL) established an area monitoring dosimeter program in accordance with Article 514 of the Department of Energy (DOE) Radiological Control Manual (RCM) in January 1993. This program is to minimize the number of areas requiring issuance of personnel dosimeters and to demonstrate that doses outside Radiological Buffer Areas are negligible. In accordance with 10 CFR Part 835.402 (a)(1)-(4) and Article 511.1 of the PNNL Radiological Control Program Description, personnel dosimetry shall be provided to (1) radiological workers who are likely to receive at least 100 mrem annually, and (2) declared pregnant workers, minors, and members of the public who are likely to receive at least 50 mrem annually. Program results for calendar years 1993-2003 confirm that personnel dosimetry is not needed for individuals located in areas monitored by the program.
Date:
August 18, 2004
Creator:
Bivins, Steven R. & Stoetzel, Gregory A.
Object Type:
Report
System:
The UNT Digital Library
Frontiers in Microbiology: Envisioning a Curriculum Unit for High School Biology
Microbiology is undergoing a quiet revolution. Techniques such as polymerase chain reaction, high throughput DNA sequencing, whole genome shotgun sequencing, DNA microarrays, and bioinformatics analyses are greatly aiding our understanding of the estimated one billion species of microbes that inhabit the Earth. Unfortunately, the rapid pace of research in microbiology stands in contrast to the much slower pace of change in educational reform. Biological Sciences Curriculum Study (BSCS) hosted a two-day planning meeting to discuss whether or not a new curriculum unit on microbiology is desirable for the high school audience. Attending the meeting were microbiologists, high school biology teachers, and science educators. The consensus of the participants was that an inquiry-based unit dealing with advances in microbiology should be developed for a high school biology audience. Participants established content priorities for the unit, discussed the unit's conceptual flow, brainstormed potential student activities, and discussed the role of educational technology for the unit. As a result of the planning meeting discussions, BSCS staff sought additional funding to develop, disseminate, and evaluate the Frontiers in Microbiology curriculum unit. This unit was intended to be developed as a replacement unit suitable for an introductory biology course. The unit would feature inquiry-based student …
Date:
June 18, 2004
Creator:
Bloom, Mark
Object Type:
Report
System:
The UNT Digital Library
Oral History Interview with Isaac Breedlove, November 18, 2004
The National Museum of the Pacific War presents an interview with Isaac Breedlove. Breedlove joined the Army in 1937 and was sent to Panama for duty at the Canal Zone. He was there two years before being discharged. Breedlove reenlisted in 1939 and was sent to Hawaii. Breedlove was in an infantry company at Schofield Barracks when the Japanese attacked Pearl Harbor. He suffered from the mumps, but waited until he was aboard a transport to the Solomon Islands to get treatment. He landed on Guadalcanal with his unit in late November, 1942. While on Guadalcanal, Breedlove received summons to report to his local draft board. His company commander did not let him go. He was also involved in the invasion of Luzon in January 1945.
Date:
November 18, 2004
Creator:
Breedlove, Isaac D.
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with Isaac Breedlove, November 18, 2004
The National Museum of the Pacific War presents an interview with Isaac Breedlove. Breedlove joined the Army in 1937 and was sent to Panama for duty at the Canal Zone. He was there two years before being discharged. Breedlove reenlisted in 1939 and was sent to Hawaii. Breedlove was in an infantry company at Schofield Barracks when the Japanese attacked Pearl Harbor. He suffered from the mumps, but waited until he was aboard a transport to the Solomon Islands to get treatment. He landed on Guadalcanal with his unit in late November, 1942. While on Guadalcanal, Breedlove received summons to report to his local draft board. His company commander did not let him go. He was also involved in the invasion of Luzon in January 1945.
Date:
November 18, 2004
Creator:
Breedlove, Isaac D.
Object Type:
Text
System:
The Portal to Texas History
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 108, No. 32, Ed. 1 Wednesday, February 18, 2004
Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date:
February 18, 2004
Creator:
Bridges, G. Frank & Bridges, Georgie
Object Type:
Newspaper
System:
The Portal to Texas History
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 109, No. 6, Ed. 1 Wednesday, August 18, 2004
Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date:
August 18, 2004
Creator:
Bridges, G. Frank & Bridges, Georgie
Object Type:
Newspaper
System:
The Portal to Texas History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 88, No. 110, Ed. 1 Sunday, January 18, 2004
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 18, 2004
Creator:
Broaddus, Matthew B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 89, No. 137, Ed. 1 Wednesday, February 18, 2004
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 18, 2004
Creator:
Broaddus, Matthew B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 89, No. 162, Ed. 1 Thursday, March 18, 2004
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 18, 2004
Creator:
Broaddus, Matthew B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 89, No. 182, Ed. 1 Sunday, April 18, 2004
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 18, 2004
Creator:
Broaddus, Matthew B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 89, No. 208, Ed. 1 Tuesday, May 18, 2004
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 18, 2004
Creator:
Broaddus, Matthew B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 89, No. 235, Ed. 1 Friday, June 18, 2004
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 18, 2004
Creator:
Broaddus, Matthew B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 89, No. 260, Ed. 1 Sunday, July 18, 2004
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 18, 2004
Creator:
Broaddus, Matthew B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 89, No. 288, Ed. 1 Wednesday, August 18, 2004
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 18, 2004
Creator:
Broaddus, Matthew B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History