51 Matching Results

Search Results

Results: 1 - 24 next
open access

ATF: Thefts of Explosives from State and Local Government Storage Facilities Are Few but May Be Underreported

Description: A letter report issued by the Government Accountability Office with an abstract that begins "More than 5.5 billion pounds of explosives are used each year in the United States by private sector companies and government entities. The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) has authority to regulate explosives and to license privately owned explosives storage facilities. After the July 2004 theft of several hundred pounds of explosives from a state and local government storage f… more
Date: October 3, 2005
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Scaled Accelerator Test for the DARHT-II Downstream Transport System

Description: The second axis of the Dual Axial radiography Hydrodynamic Test (DARHT-II) facility at LANL is currently in the commissioning phase[1]. The beam parameters for the DARHT-II machine will be nominally 18 MeV, 2 kA and 1.6 {micro}s. This makes the DARHT-II downstream system the first system ever designed to transport a high current, high energy and long pulse beam [2]. We will test these physics issues of the downstream transport system on a scaled DARHT-II accelerator with a 7.8-MeV and 660-A bea… more
Date: October 3, 2005
Creator: Chen, Y.; Blackfield, D. T.; Caporaso, G. J.; Guethlein, G.; McCarrick, J. F.; Paul, A. C. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Technology Assessment and Roadmap for the Emergency Radiation Dose Assessment Program

Description: A Joint Interagency Working Group (JIWG) under the auspices of the Department of Homeland Security Office of Research and Development conducted a technology assessment of emergency radiological dose assessment capabilities as part of the overall need for rapid emergency medical response in the event of a radiological terrorist event in the United States. The goal of the evaluation is to identify gaps and recommend general research and development needs to better prepare the Country for mitigati… more
Date: October 3, 2005
Creator: Turteltaub, K W; Hartman-Siantar, C; Easterly, C & Blakely, W
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Atomic Structure of Pyramidal Defects in GaN:Mg; Influence ofAnnealing

Description: The atomic structure of the characteristic defects (Mg-rich hexagonal pyramids) in p-doped bulk and MOCVD GaN:Mg thin films grown with Ga polarity was determined at atomic resolution by direct reconstruction of the scattered electron wave in a transmission electron microscope. Small cavities were present inside the defects, confirmed also with positron annihilation. The inside walls of the cavities were covered by GaN of reverse polarity compared to the matrix. Defects in bulk GaN:Mg were almos… more
Date: October 3, 2005
Creator: Liliental-Weber, Z.; Tomaszewicz, T.; Zakharov, D.; O'Keefe, M.; Hautakangas, S.; Saarinen, K. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department

[Fair ride operator]

Description: Photograph of Mariano Silva, one of the many Hispanics that benefit from working as a ride operator during the Texas State Fair. The Texas State Fair, the largest of its type in the United States, runs during the month of October in Dallas, Texas.
Date: October 3, 2005
Creator: Castillo, José L.
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[Boy eating fried food]

Description: Twelve year old Pedro Nuñez Rivera came from California with his parents and brothers to visit the Texas State Fair. The Texas State Fair, the largest of its type in the United States, runs during the month of October in Dallas, Texas.
Date: October 3, 2005
Creator: Castillo, José L.
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[A man holding french fries]

Description: Photograph of Abelino Lopez who has come to the Texas State Fair for more than twenty years with his family. The Texas State Fair, the largest of its type in the United States, runs during the month of October in Dallas, Texas.
Date: October 3, 2005
Creator: Castillo, José L.
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[A family at the Texas State Fair]

Description: Photograph of Abelino Lopez (right) who has come to the Texas State Fair for more than twenty years with his family. The Texas State Fair, the largest of its type in the United States, runs during the month of October in Dallas, Texas.
Date: October 3, 2005
Creator: Castillo, José L.
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections
open access

The ArcSDE GIS Dynamic Population Model Tool for Savannah River Site Emergency Response

Description: The Savannah River Site (SRS) is a 310-square-mile Department of Energy site located near Aiken, South Carolina. With a workforce of over 10,000 employees and subcontractors, SRS emergency personnel must be able to respond to an emergency event in a timely and effective manner, in order to ensure the safety and security of the Site. Geographic Information Systems (GIS) provides the technology needed to give managers and emergency personnel the information they need to make quick and effective d… more
Date: October 3, 2005
Creator: MCLANE, TRACY & JONES, DWIGHT
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

New Classes of Quasi-Axisymmetric Stellarator Configurations

Description: We have identified and developed new classes of quasi-axially symmetric configurations which have attractive properties from the standpoint of both near-term physics experiments and long-term power producing reactors. These new configurations were developed as a result of surveying the aspect ratio-rotational transform space to identify regions endowed with particularly interesting features. These include configurations with very small aspect ratios ({approx}2.5) having superior quasi-symmetry … more
Date: October 3, 2005
Creator: Ku, L. P. & Garabedian, P. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Nonadiabatic Ponderomotive Potentials

Description: An approximate integral of the Manley-Rowe type is found for a particle moving in a high-frequency field, which may interact resonantly with natural particle oscillations. An effective ponderomotive potential is introduced accordingly and can capture nonadiabatic particle dynamics. We show that nonadiabatic ponderomotive barriers can trap classical particles, produce cooling effect, and generate one-way walls for resonant species. Possible atomic applications are also envisioned.
Date: October 3, 2005
Creator: Dodin, I. Y. & Fisch, N. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Grazing Incidence Pumping for High Efficiency X-ray Lasers

Description: Over the last decade, most laser-driven collisional excitation x-ray lasers have relied on the absorption of the pump energy incident at normal incidence to a pre-formed plasma. The main advantage is that the inversion can be created at various plasma regions in space and time where the amplification and ray propagation processes are best served. The main disadvantage is that different plasma regions regardless of the contribution to the inversion have to be pumped simultaneously in order to ma… more
Date: October 3, 2005
Creator: Dunn, J; Keenan, R & Shlyaptsev, V N
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Simulations of carbon sputtering in fusion reactor divertor plates

Description: The interaction of edge plasma with material surfaces raises key issues for the viability of the International Thermonuclear Reactor (ITER) and future fusion reactors, including heat-flux limits, net material erosion, and impurity production. After exposure of the graphite divertor plate to the plasma in a fusion device, an amorphous C/H layer forms. This layer contains 20-30 atomic percent D/T bonded to C. Subsequent D/T impingement on this layer produces a variety of hydrocarbons that are spu… more
Date: October 3, 2005
Creator: Marian, J.; Zepeda-Ruiz, L. A.; Gilmer, G. H.; Bringa, E. M. & Rognlien, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Delay Indictment]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 3, 2005
Duration: 1 minute 08 seconds
Creator: NBC 5 (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Final Technical Report "Energy Partitioning in Elementary Chemical Reactions"

Description: This is the final technical report of the subject grant. It describes the scientific results obtained during the reporting period. These results are focused on the reactions of atomic oxygen with terminal alkenes. We have studied the production of vinoxy in these reactions. We have characterized the energy disposal in the reactions and have elaborated the reaction mechanism.
Date: October 3, 2005
Creator: Bersohn, Richard & Valentini, James J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Technology Development Program for an Advanced Potassium Rankine Power Conversion System Compatible with Several Space Reactor Designs

Description: This report documents the work performed during the first phase of the National Aeronautics and Space Administration (NASA), National Research Announcement (NRA) Technology Development Program for an Advanced Potassium Rankine Power Conversion System Compatible with Several Space Reactor Designs. The document includes an optimization of both 100-kW{sub e} and 250-kW{sub e} (at the propulsion unit) Rankine cycle power conversion systems. In order to perform the mass optimization of these systems… more
Date: October 3, 2005
Creator: Yoder, G.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen