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445 Matching Results
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BRAC Early Bird 10 October 2005
BRAC Early Bird 10 October 2005
Date:
October 11, 2005
Creator:
United States. Defense Base Closure and Realignment Commission.
Object Type:
Text
System:
The UNT Digital Library
BRAC Early Bird 11 October 2005
BRAC Early Bird 11 October 2005
Date:
October 11, 2005
Creator:
United States. Defense Base Closure and Realignment Commission.
Object Type:
Text
System:
The UNT Digital Library
DON-0140 - Scenario (Not Candidate Recommendation)
Disregard Restriction of Header and Footer: DON-0140 - Scenario (Not Candidate Recommendation). Contains C5, C6, C7, and C8 data.
Date:
October 11, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
DON-0141 - Scenario (Not Candidate Recommendation)
Disregard Restriction of Header and Footer: DON-0141 - Scenario (Not Candidate Recommendation). Contains C5, C6, C7, and C8 data.
Date:
October 11, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
DON-0151 - Scenario (Not Candidate Recommendation)
Disregard Restriction of Header and Footer: DON-0151 - Scenario (Not Candidate Recommendation). Contains C5, C6, C7, and C8 data.
Date:
October 11, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
DON-0152 - Scenario (Not Candidate Recommendation)
Disregard Restriction of Header and Footer: DON-0152 - Scenario (Not Candidate Recommendation). Contains C5, C6, C7, and C8 data.
Date:
October 11, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
DON-0123 - Scenario (Not Candidate Recommendation)
Disregard Restriction of Header and Footer: DON-0123 - Scenario (Not Candidate Recommendation). Contains C5 data.
Date:
October 11, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
DON-0124 - Scenario (Not Candidate Recommendation)
Disregard Restriction of Header and Footer: DON-0124 - Scenario (Not Candidate Recommendation). Contain C5 data.
Date:
October 11, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
DON-0125 - Scenario (Not Candidate Recommendation)
Disregard Restriction of Header and Footer: DON-0125 - Scenario (Not Candidate Recommendation). Contains C5 data.
Date:
October 11, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
DON-0126A, DON-0126B, and DON-0126C - Scenarios (Not Candidate Recommendations)
Disregard Restriction of Header and Footer: DON-0126A, DON-0126B, and DON-0126C - Scenarios (Not Candidate Recommendations). Contains C5 data.
Date:
October 11, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
DON-0155 - Scenario (Not Candidate Recommendation)
Disregard Restriction of Header and Footer: DON-0155 - Scenario (Not Candidate Recommendation). Contains C5, C6, C7, and C8 data.
Date:
October 11, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
DON-0159 - Scenario (Not Candidate Recommendation)
Disregard Restriction of Header and Footer: DON-0159 - Scenario (Not Candidate Recommendation). Contains C5 data.
Date:
October 11, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
DON-0132 - Scenario (Not Candidate Recommendation)
Disregard Restriction of Header and Footer: DON-0132 - Scenario (Not Candidate Recommendation). Contains C5 data.
Date:
October 11, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
DON-0134 - Scenario (Not Candidate Recommendation)
Disregard Restriction of Header and Footer: DON-0134 - Scenario (Not Candidate Recommendation). Contains C5 data.
Date:
October 11, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
DON-0137 - Scenario (Not Candidate Recommendation)
Disregard Restriction of Header and Footer: DON-0137 - Scenario (Not Candidate Recommendation). Contains C5 data.
Date:
October 11, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
DON-0138 - Scenario (Not Candidate Recommendation)
Disregard Restriction of Header and Footer: DON-0138 - Scenario (Not Candidate Recommendation). Contains C5, C6, C7, and C8 data.
Date:
October 11, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
DON-0139 - Scenario (Not Candidate Recommendation)
Disregard Restriction of Header and Footer: DON-0139 - Scenario (Not Candidate Recommendation). Contains C5, C6, C7, and C8 data.
Date:
October 11, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
Fast Ignition relevant study of the flux of high intensity laser generated electrons via a hollow cone into a laser-imploded plasma
An integrated experiment relevant to fast ignition is described. A Cu doped CD spherical shell target is imploded around an inserted hollow Au cone by a six beam 600J, 1ns laser to a peak density of 4gcm{sup -3} and a diameter of 100 {micro}m. A 10 ps, 20TW laser pulse is focused into the cone at the time of peak compression. The flux of high-energy electrons through the imploded material is determined from the yield of Cu K{alpha} fluorescence by comparison with a Monte Carlo model and is estimated to carry 15% of the laser energy. Collisional and Ohmic heating are modeled. An electron spectrometer shows significantly greater reduction of the transmitted electron flux than is due to binary collisions and Ohmic potential. Enhanced scattering by instability-induced magnetic fields is suggested.
Date:
October 11, 2005
Creator:
Key, M.; Adam, J.; Akli, K.; Borgheshi, M.; Chen, M.; Evans, R. et al.
Object Type:
Article
System:
The UNT Digital Library
On the electronic configuration in Pu: spectroscopy and theory
Photoelectron spectroscopy, synchrotron-radiation-based x-ray absorption, electron energy-loss spectroscopy, and density-functional calculations within the mixed-level and magnetic models, together with canonical band theory have been used to study the electron configuration in Pu. These methods suggest a 5f{sup n} configuration for Pu of 5 {le} n < 6, with n {ne} 6, contrary to what has recently been suggested in several publications. We show that the n = 6 picture is inconsistent with the usual interpretation of photoemission and x-ray absorption spectra. Instead, these spectra support the traditional conjecture of a 5f{sup 5} configuration in Pu as is obtained by density-functional theory. We further argue, based on 5f-band filling, that an n = 6 hypothesis is incompatible with the position of Pu in the actinide series and its monoclinic ground-state phase.
Date:
October 11, 2006
Creator:
Tobin, J G; Soderlind, P; Landa, A; Moore, K T; Schwartz, A J; Chung, B W et al.
Object Type:
Article
System:
The UNT Digital Library
Initial Self-Consistent 3D Electron-Cloud Simulations of the LHC Beam with the Code WARP+POSINST
We present initial results for the self-consistent beam-cloud dynamics simulations for a sample LHC beam, using a newly developed set of modeling capability based on a merge [1] of the three-dimensional parallel Particle-In-Cell (PIC) accelerator code WARP [2] and the electron-cloud code POSINST [3]. Although the storage ring model we use as a test bed to contain the beam is much simpler and shorter than the LHC, its lattice elements are realistically modeled, as is the beam and the electron cloud dynamics. The simulated mechanisms for generation and absorption of the electrons at the walls are based on previously validated models available in POSINST [3, 4].
Date:
October 11, 2005
Creator:
Vay, J; Furman, M A; Cohen, R H; Friedman, A & Grote, D P
Object Type:
Article
System:
The UNT Digital Library
Hard x-ray imaging and spectroscopy of long pulse NIF hohlraums
None
Date:
October 11, 2005
Creator:
McDonald, J. W.; Kauffman, R. L.; Suter, L. J.; Celeste, J. R.; Schneider, M. B.; Holder, J. P. et al.
Object Type:
Article
System:
The UNT Digital Library
Emerging Energy-Efficient Technologies in Buildings Technology Characterizations for Energy Modeling
The energy use in America's commercial and residential building sectors is large and growing. Over 38 quadrillion Btus (Quads) of primary energy were consumed in 2002, representing 39% of total U.S. energy consumption. While the energy use in buildings is expected to grow to 52 Quads by 2025, a large number of energy-related technologies exist that could curtail this increase. In recent years, improvements in such items as high efficiency refrigerators, compact fluorescent lights, high-SEER air conditioners, and improved building shells have all contributed to reducing energy use. Hundreds of other technology improvements have and will continue to improve the energy use in buildings. While many technologies are well understood and are gradually penetrating the market, more advanced technologies will be introduced in the future. The pace and extent of these advances can be improved through state and federal R&D. This report focuses on the long-term potential for energy-efficiency improvement in buildings. Five promising technologies have been selected for description to give an idea of the wide range of possibilities. They address the major areas of energy use in buildings: space conditioning (33% of building use), water heating (9%), and lighting (16%). Besides describing energy-using technologies (solid-state lighting and geothermal …
Date:
October 11, 2004
Creator:
Hadley, SW
Object Type:
Report
System:
The UNT Digital Library
Filling in the Roadmap for Self-Consistent Electron Cloud and Gas Modeling
Electron clouds and gas pressure rise limit the performance of many major accelerators. A multi-laboratory effort to understand the underlying physics via the combined application of experiment, theory, and simulation is underway. We present here the status of the simulation capability development, based on a merge of the three-dimensional parallel Particle-In-Cell (PIC) accelerator code WARP and the electron cloud code POSINST, with additional functionalities. The development of the new capability follows a ''roadmap'' describing the different functional modules, and their inter-relationships, that are ultimately needed to reach self-consistency. Newly developed functionalities include a novel particle mover bridging the time scales between electron and ion motion, a module to generate neutrals desorbed by beam ion impacts at the wall, and a module to track impact ionization of the gas by beam ions or electrons. Example applications of the new capability to the modeling of electron effects in the High Current Experiment (HCX) are given.
Date:
October 11, 2005
Creator:
Vay, J; Furman, M A; Seidl, P A; Cohen, R H; Friedman, A; Grote, D P et al.
Object Type:
Article
System:
The UNT Digital Library
Density and Temperature Profile Modifications with Electron Cyclotron Power Injection in Quiescent Double Barrier Discharges on DIII-D
Quiescent double barrier (QDB) conditions often form when an internal transport barrier is created with high-power neutral-beam injection into a quiescent H-mode (QH) plasma. These QH-modes offer an attractive, high-performance operating scenario for burning plasma experiments due to their quasi-stationarity and lack of edge localized modes (ELMs). Our initial experiments and modeling using ECH/ECCD in QDB shots were designed to control the current profile and, indeed, we have observed a strong dependence on the q-profile when EC-power is used inside the core transport barrier region. While strong electron heating is observed with EC power injection, we also observe a drop in the other core parameters; ion temperature and rotation, electron density and impurity concentration. These dynamically changing conditions provide a rapid evolution of T{sub e} T{sub i} profiles accessible with 0.3 < (T{sub e} T{sub i}){sub axis} < 0.8 observed in QDB discharges. We are exploring the correlation and effects of observed density profile changes with respect to these time-dependent variations in the temperature ratio. Thermal and particle diffusivity calculations over this temperature ratio range indicate a consistency between the rise in temperature ratio and an increase in transport corresponding to the observed change in density.
Date:
October 11, 2005
Creator:
Casper, T. A.; Burrell, K. H.; Doyle, E. J.; Gohil, P.; Lasnier, C. J.; Leonard, A. W. et al.
Object Type:
Article
System:
The UNT Digital Library