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Defense Management: Opportunities to Enhance the Implementation of Performance-Based Logistics

Description: A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Defense (DOD) is pursuing a policy that promotes performance-based logistics at the platform level as the preferred product support strategy for its weapon systems, based in part on DOD's perception that this is an industry best practice. GAO was asked to compare industry practices for activities using complex and costly equipment with life-cycle management issues similar to those of m… more
Date: August 16, 2004
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Bridging the Gap between Quantum Mechanics and Large-Scale Atomistic Simulation

Description: The prospect of modeling across disparate length and time scales to achieve a predictive multiscale description of real materials properties has attracted widespread research interest in the last decade. To be sure, the challenges in such multiscale modeling are many, and in demanding cases, such as mechanical properties or dynamic phase transitions, multiple bridges extending from the atomic level all the way to the continuum level must be built. Although often overlooked in this process, one … more
Date: August 16, 2004
Creator: Moriarty, J. A.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Experimental and Numerical Investigation of the Role of Initial Condition of the Dynamics of Rayleigh-Taylor Mixing

Description: Experiments and direct numerical simulations have been performed to examine the effects of initial conditions on the dynamics of a Rayleigh-Taylor mixing layer. Experiments were performed on a water channel facility to quantify the interfacial and velocity perturbations initially present at the two-fluid interface in a small Atwood number mixing layer. The measurements have been parameterized for implementation in numerical simulations of the experiment, and two- and three-dimensional direct nu… more
Date: August 16, 2004
Creator: Mueschke, N
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

Performance Improvements of a Tritiated Water Recovery System

Description: Tritium processing equipment is installed inside gloveboxes. Leaks of tritium, normal and accidental, are captured by a tritium stripping system using an oxidation-absorption process. Tritium is captured as tritiated water in zeolite beds and is recovered by desorption and reduction. The regenerated zeolite beds are reused. Reduction of the tritiated water is accomplished by a zeolite bed recovery system using hot magnesium beds. The system has been in operation for about 10 years and met origi… more
Date: August 16, 2004
Creator: Heung, Leung K.; Hsu, R. H.; Rice, J. L. & McGee, T. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Rates and progenitors of type Ia supernovae

Description: The remarkable uniformity of Type Ia supernovae has allowed astronomers to use them as distance indicators to measure the properties and expansion history of the Universe. However, Type Ia supernovae exhibit intrinsic variation in both their spectra and observed brightness. The brightness variations have been approximately corrected by various methods, but there remain intrinsic variations that limit the statistical power of current and future observations of distant supernovae for cosmological… more
Date: August 16, 2004
Creator: Wood-Vasey, William Michael
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

Report on Analyses of WAC Samples of Evaporator Overheads - 2004

Description: All water received into ETF requires characterization versus the defined Waste Acceptance Criteria. Currently much of the water received by ETF comes from the F and H Evaporator Overheads. Concentration, Storage and Transfer Engineering issued a modified list of species to be determined. In March of 2004, the Tank Farm submitted annual samples from 2F, 2H and 3H Evaporator Overhead streams for characterization to verify compliance with the Effluent Treatment Facility (ETF) Waste Acceptance Crit… more
Date: August 16, 2004
Creator: Oji, Lawrence N. & Pettis, M. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Alliance for Computational Science Collaboration HBCU Partnership at Fisk University. Final Report 2001

Description: Computational Science plays a big role in research and development in mathematics, science, engineering and biomedical disciplines. The Alliance for Computational Science Collaboration (ACSC) has the goal of training African-American and other minority scientists in the computational science field for eventual employment with the Department of Energy (DOE). The involvements of Historically Black Colleges and Universities (HBCU) in the Alliance provide avenues for producing future DOE African-Am… more
Date: August 16, 2004
Creator: Collins, W. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

HIGH-INTENSITY, HIGH CHARGE-STATE HEAVY ION SOURCES

Description: There are many accelerator applications for high intensity heavy ion sources, with recent needs including dc beams for RIA, and pulsed beams for injection into synchrotrons such as RHIC and LHC. The present status of sources producing high currents of high charge state heavy ions is reviewed. These sources include ECR, EBIS, and Laser ion sources. Benefits and limitations for these type sources are described. Possible future improvements in these sources are also mentioned.
Date: August 16, 2004
Creator: ALESSI,J. G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Axial Electron Heat Loss From Mirror Devices Revisited

Description: An issue of the axial electron heat loss is of a significant importance for mirror-based fusion devices. This problem has been considered in a number of publications but it is still shrouded in misconceptions. In this paper we revisit it once again. We discuss the following issues: (1) Formation of the electron distribution function in the end tank at large expansion ratios; (2) The secondary emission from the end plates and the ways of suppressing it (if needed); (3) Ionization and charge exch… more
Date: August 16, 2004
Creator: Ryutov, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Oprah Jury Duty]

Description: Video footage from the NBC 5 television station in Fort Worth, Texas, to accompany a news story. This story aired at 4 P.M.
Date: August 16, 2004
Duration: 59 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Effect of Nitrate on the Repassivation Potential of Alloy 22 in Chloride Containing Environments.

Description: The study of Alloy 22 was undertaken in several selected nitrate/chloride (NO{sub 3}{sup -}/Cl{sup -}) electrolytes with chloride concentrations [Cl{sup -}] of 1.0, 3.5 and 6.0 molal with [NO{sub 3} {sup -}]/[Cl{sup -}] ratios of 0.05, 0.15 and 0.5 at temperatures up to 100 C. Results showed that the repassivation potentials increased with increase in [NO{sub 3} {sup -}]/[Cl{sup -}] ratio and decreased with increase in temperature. The absolute [Cl{sup -}] was found to have less of an effect on… more
Date: August 16, 2004
Creator: Ilevbare, G. O.; King, K. J.; Gordon, S. R.; Elayat, H. A.; Gdowski, G. E. & Summers, T. S. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Development of an odd-Z-projectile reaction for heavy element synthesis: 208Pb(64Ni, n)271Ds and 208Pb(65Cu, n)272111

Description: Seven {sup 271}Ds decay chains were identified in the bombardment of {sup 208}Pb targets with 311.5- and 314.3-MeV {sup 64}Ni projectiles using the Berkeley Gas-filled Separator. These data, combined with previous results, provide an excitation function for this reaction. From these results, an optimum energy of 321 MeV was estimated for the production of {sup 272}111 in the reaction {sup 208}Pb({sup 65}Cu, n). One decay chain was observed, resulting in a cross section of 1.7{sub -1.4}{sup +3.9… more
Date: August 16, 2004
Creator: Folden, C. M., III; Gregorich, K. E.; Dullmann, Ch. E.; Mahmud, H.; Pang, G. K.; Schwantes, J. M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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