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DOD Personnel Clearances: Preliminary Observations Related to Backlogs and Delays in Determining Security Clearance Eligibility for Industry Personnel

Description: Testimony issued by the General Accounting Office with an abstract that begins "Because of increased awareness of threats to national security and efforts to privatize federal jobs, the demand for security clearances for government and industry personnel has increased. Industry personnel are taking on a greater role in national security work for the Department of Defense (DOD) and other federal agencies. Because many of these jobs require access to classified information, industry personnel nee… more
Date: May 6, 2004
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Recreation Fees: Comments on the Federal Lands Recreation Enhancement Act, H.R. 3283

Description: Testimony issued by the General Accounting Office with an abstract that begins "In 1996, the Congress authorized an experimental initiative called the Recreational Fee Demonstration Program that provides funds to increase the quality of visitor experience and enhance resource protection. Under the program, the Bureau of Land Management, Fish and Wildlife Service, and National Park Service--all within the Department of the Interior--and the Forest Service--within the U.S. Department of Agricultu… more
Date: May 6, 2004
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Theoretical study of the electronic states of Nb4, Nb5 clusters and their anions (Nb4?, Nb5?)

Description: Geometries and energy separations of the various low-lying electronic states of Nb{sub n} and Nb{sub n}{sup -} (n = 4, 5) clusters with various structural arrangements have been investigated. The complete active space multi-configuration self-consistent field (CASMCSCF) method followed by multi-reference singles and doubles configuration interaction (MRSDCI) calculations that included up to 52 million configuration spin functions have been used to compute several electronic states of these clus… more
Date: May 6, 2004
Creator: Balasubramanian, K & Majumdar, D
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Comparison of Blade-Strike Modeling Results with Empirical Data

Description: This study is the initial stage of further investigation into the dynamics of injury to fish during passage through a turbine runner. As part of the study, Pacific Northwest National Laboratory (PNNL) estimated the probability of blade strike, and associated injury, as a function of fish length and turbine operating geometry at two adjacent turbines in Powerhouse 1 of Bonneville Dam. Units 5 and 6 had identical intakes, stay vanes, wicket gates, and draft tubes, but Unit 6 had a new runner and … more
Date: May 6, 2004
Creator: Carlson, Thomas J. & Ploskey, Gene R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Nuclear Spin Statistics of extended aromatic C48N12 Azafullerene

Description: We have presented the nuclear spin statistics of the novel extended aromatic C{sub 48}N{sub 12} azafullerene. The nuclear spin multiplets and statistical weights of {sup 14}N spin-1 bosons are provided. In addition we have also provided the {sup 13}C nuclear spin species and spin statistical weights of {sup 13}C{sub 48}N{sub 12}. The spin statistical weights and spin species show that the presence of {sup 14}N nuclei in the aromatic fullerene can provide unique experimental opportunity to inves… more
Date: May 6, 2004
Creator: Balasubramanian, K
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Karen Hughes]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: May 6, 2004
Duration: 2 minutes 51 seconds
Creator: NBC 5 (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Progress and Continuing Challenges in GaSb-based III-V Alloys and Heterostructures Grown by Organometallic Vapor Phase Epitaxy

Description: This paper discusses progress in the preparation of mid-IR GaSb-based III-V materials grown by organometallic vapor phase epitaxy (OMVPE). The growth of these materials is complex, and fundamental and practical issues associated with their growth are outlined. Approaches that have been explored to further improve the properties and performance are briefly reviewed. Recent materials and device results on GaInAsSb bulk layers and GaInAsSb/AlGaAsSb heterostructures, grown lattice matched to GaSb, … more
Date: May 6, 2004
Creator: Wang, C. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Elastic-Wavefield Seismic Stratigraphy: A New Seismic Imaging Technology Progress Report

Description: The focus of elastic-wavefield seismic stratigraphy research shifted from onshore prospects to marine environments during this report period. Four-component ocean-bottom-cable (4-C OBC) seismic data acquired in water depths of 2400 to 2500 feet across Green Canyon Block 237 in the Gulf of Mexico were processed and analyzed. The P-P and P-SV images of strata immediately below the seafloor exhibit amazing differences in P-P and P-SV seismic facies. These data may be one of the classic examples of… more
Date: May 6, 2004
Creator: Hardage, Bob A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Low-Cost Process for the Synthesis of Nanosize Yttria-Stabilized Zirconia (Ysz) by Molecular Decomposition

Description: This report summarizes the results of work done during the performance period on this project, between October 1, 2002 and December 31, 2003, with a three month no-cost extension. The principal objective of this work was to develop a low-cost process for the synthesis of sinterable, fine powder of YSZ. The process is based on molecular decomposition (MD) wherein very fine particles of YSZ are formed by: (1) Mixing raw materials in a powder form, (2) Synthesizing compound containing YSZ and a fu… more
Date: May 6, 2004
Creator: Virkar, Anil V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Photometry of SN 2002ic and implications for the progenitor mass-loss history

Description: We present new pre-maximum and late-time optical photometry of the Type Ia/IIn supernova 2002ic. These observations are combined with the published V-band magnitudes of Hamuy et al. (2003) and the VLT spectrophotometry of Wang et al. (2004) to construct the most extensive light curve to date of this unusual supernova. The observed flux at late time is significantly higher relative to the flux at maximum than that of any other observed Type Ia supernova and continues to fade very slowly a year a… more
Date: May 6, 2004
Creator: Wood-Vasey, W.M.; Wang, L. & Aldering, G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Letter Report: Scoping Analysis of Gas Phase Transport from the Rulison Underground Nuclear Test

Description: This letter report documents the results of a computer model to quantify the travel time of tritium (radioactive hydrogen) from an underground nuclear detonation in 1969 toward a proposed producing gas well located 1,500 feet (457 meters) away.
Date: May 6, 2004
Creator: Cooper, Clay
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy Technology Division research summary 2004.

Description: The Energy Technology (ET) Division provides materials and engineering technology support to a wide range of programs important to the US Department of Energy (DOE). The Division's capabilities are generally applied to technical issues associated with energy systems, biomedical engineering, transportation, and homeland security. Research related to the operational safety of commercial light water nuclear reactors (LWRs) for the US Nuclear Regulatory Commission (NRC) remains another significant … more
Date: May 6, 2004
Creator: Poeppel, R. B. & Shack, W. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

File Sharing Program: Users of Peer-to-Peer Networks Can Readily Access Child Pornography

Description: Testimony issued by the General Accounting Office with an abstract that begins "The availability of child pornography has dramatically increased in recent years as it has migrated from printed material to the World Wide Web, becoming accessible through Web sites, chat rooms, newsgroups, and now the increasingly popular peer-to-peer file sharing programs. These programs enable direct communication between users, allowing users to access each other's files and share digital music, images, and vid… more
Date: May 6, 2004
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

The Role of Hydrate Films in the Effectiveness of Direct CO2 Injection as an Ocean Carbon Sequestration Strategy

Description: About one-third of the carbon dioxide (2 Pg C/yr of 6 Pg C/yr) we emit into the atmosphere is already being sequestered naturally by the ocean by the process of CO{sub 2} gas transfer across the air-sea interface. Over twenty years ago Brewer (1978) and Chen and Millero (1979) presented the first fundamental estimates of anthropogenic CO{sub 2} in the ocean based the hypothesis of CO{sub 2} penetration along isopycnal surfaces and observations of total inorganic carbon (TCO2) and total alkalini… more
Date: May 6, 2004
Creator: Goyet, C
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The high-resolution architecture and structural dynamics of Bacillus spores

Description: The capability to image single microbial cell surfaces at nanometer scale under native conditions would profoundly impact mechanistic and structural studies of pathogenesis, immunobiology, environmental resistance and biotransformation. We report here that advances in atomic force microscopy (AFM) have allowed us to directly visualize high-resolution native structures of bacterial endospores, including the exosporium and spore coats of four Bacillus species in air and water environments. The di… more
Date: May 6, 2004
Creator: Plomp, M; Leighton, T J; Wheeler, K E & Malkin, A J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

OPTICAL PROPERTIES OF (Pr,Ce){sub 2}CuO{sub 4}.

Description: We studied the optical conductivity of electron doped Pr{sub 1-x}Ce{sub x}CuO{sub 4} from the underdoped to the overdoped regime. The observation of low to high frequency spectral weight transfer reveals the presence of a gap, except in the overdoped regime. A Drude peak at all temperatures shows the partial nature of this gap. The close proximity of the doping at which the gap vanishes to the antiferromagnetic phase boundary leads us to assign this partial gap to a spin density wave.
Date: May 6, 2004
Creator: ZIMMERS,A. BONTEMPS,N. LOBO,R. P. S. M. HILL,C. P. ET AL.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Simulating cometary and stellar x-ray emission in the laboratory using microcalorimeters and an electron beam ion trap

Description: The mixing of atomic and macroscopic processes taking place in non-terrestrial objects creates complex, dynamic, and intriguing environments. High-resolution x-ray spectra from these sources measured by satellites such as Chandra, XMM-Newton, and the Solar Maximum Mission provide a means for understanding the physics governing these sources. Laboratory measurements of the atomic processes have proved crucial to the interpretation of these spectra. For example using the LLNL electron beam ion tr… more
Date: May 6, 2004
Creator: Brown, G. V.; Beiersdorfer, P.; Chen, H.; Graf, A.; May, M.; Terracol, S. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evaluating Parameterizations in General Circulation Models: Climate Simulation Meets Weather Prediction

Description: To significantly improve the simulation of climate by general circulation models (GCMs), systematic errors in representations of relevant processes must first be identified, and then reduced. This endeavor demands that the GCM parameterizations of unresolved processes, in particular, should be tested over a wide range of time scales, not just in climate simulations. Thus, a numerical weather prediction (NWP) methodology for evaluating model parameterizations and gaining insights into their beha… more
Date: May 6, 2004
Creator: Phillips, T. J.; Potter, G. L.; Williamson, D. L.; Cederwall, R. T.; Boyle, J. S.; Fiorino, M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Molecular Clouds: Observation to Experiment

Description: Our ongoing investigation of how 'Pillars' and other structure form in molecular clouds irradiated by ultraviolet (UV) stars has revealed that the Rayleigh-Taylor instability is strongly suppressed by recombination in the photoevaporated outflow, that clumps and filaments may be key, that the evolution of structure is well-modeled by compressible hydrodynamics, and that directionality of the UV radiation may have significant effects. We discuss a generic, flexible set of laboratory experiments … more
Date: May 6, 2004
Creator: Kane, J. O.; Ryutov, D. D.; Mizuta, A.; Remington, B. A. & Pound, M. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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