Search Results

open access

DOD's Overseas Infrastructure Master Plans Continue to Evolve

Description: Correspondence issued by the Government Accountability Office with an abstract that begins "In 2004, President Bush announced what was described as the most comprehensive restructuring of U.S. military forces overseas since the end of the Korean War. Soon thereafter, the Department of Defense (DOD) issued a report titled Strengthening U.S. Global Defense Posture. This report defined the key tenets of the integrated global presence and basing strategy, which outlines troop and basing adjustments… more
Date: August 22, 2006
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
open access

Measurement of the relaxation time of hot electrons in laser-solid interaction at relativistic laser intensities

Description: The authors have measured the relaxation time of hot electrons in short pulse laser-solid interactions using a picosecond time-resolved x-ray spectrometer and a time-integrated electron spectrometer. Employing laser intensities of 10{sup 17}, 10{sup 18}, and 10{sup 19} W/cm{sup 2}, they find increased laser coupling to hot electrons as the laser intensity becomes relativistic and thermalization of hot electrons at timescales on the order of 10 ps at all laser intensities. They propose a simple … more
Date: August 22, 2006
Creator: Chen, H; Shepherd, R; Chung, H K; Dyer, G; Faenov, A; Fournier, K B et al.
Partner: UNT Libraries Government Documents Department
open access

Spectrally Enhanced Lighting Program Implementation for Energy Savings: Field Evaluation

Description: This report provides results from an evaluation PNNL conducted of a spectrally enhanced lighting demonstration project. PNNL performed field measurements and occupant surveys at three office buildings in California before and after lighting retrofits were made in August and December 2005. PNNL measured the following Overhead lighting electricity demand and consumption, Light levels in the workspace, Task lighting use, and Occupant ratings of satisfaction with the lighting. Existing lighting, wh… more
Date: August 22, 2006
Creator: Gordon, Kelly L.; Sullivan, Gregory P.; Armstrong, Peter R.; Richman, Eric E. & Matzke, Brett D.
Partner: UNT Libraries Government Documents Department
open access

Partnerships for Clean Development and Climate: Business andTechnology Cooperation Benefits

Description: Development and poverty eradication are urgent andoverriding goals internationally. The World Summit on SustainableDevelopment made clear the need for increased access to affordable,reliable and cleaner energy and the international community agreed in theDelhi Declaration on Climate Change and Sustainable Development on theimportance of the development agenda in considering any climate changeapproach. To this end, six countries (Australia, China, India, Japan,Republic of Korea and the United St… more
Date: August 22, 2006
Creator: Sathaye, Jayant A.; Price, Lynn; Kumar, Satish; De La Rue Du Can, Stephane; Warfield, Corina & Padmanabhan, S.
Partner: UNT Libraries Government Documents Department
open access

INTERIM STORAGE AND LONG TERM DISPOSAL OF RESEARCH REACTOR SPENT FUEL

Description: Aluminum clad research reactor spent nuclear fuel (SNF) is currently being consolidated in wet storage basins (pools). Approximately 20 metric tons (heavy metal) of aluminum-based spent nuclear fuel (Al-SNF) is being consolidated for treatment, packaging, interim storage, and preparation for ultimate disposal in a geologic repository. The storage and disposal of Al-SNF are subject to requirements that provide for safety and acceptable radionuclide release. The options studied for interim storag… more
Date: August 22, 2006
Creator: Vinson, D
Partner: UNT Libraries Government Documents Department
open access

Combinatorial Approach for the Discovery of New Scintillating Materials SBIR Phase I Final Report Report # DOE/ER/84310

Description: The combinatorial approach for the discovery of new scintillating materials has been investigated using the wet-chemical (sol-gel) synthesis methods. Known scintillating compounds Lu2SiO5 (LSO) and (LuAl)O3 (LAO) and solid solutions in the systems of Lu2O3 -Y2O3 – SiO2 (CeO2-doped) (LYSO) and Lu2O3 -Y2O3 – Al2O3 (CeO2 –doped) (LYAO) were synthesized from sol-gel precursors. Sol-gel precursors were formulated from alkoxides and nitrates and acetates of the cations. Sol-gel solution precursors we… more
Date: August 22, 2006
Creator: Cronin, J. P.; Agrawal, A. & Tonazzi, J. C.
Partner: UNT Libraries Government Documents Department
open access

Measurement of the Branching Fraction And Search for Direct CP-Violation in the B+- --> J/Psi Pi+- Decay Mode at BaBar

Description: The phenomenon of CP-violation in weak interactions, discovered in 1964 in decays of neutral kaons, receives a simple and elegant explanation in the Standard Model with three generations of quarks. Indeed, in this model the common source of CP-asymmetry phenomena is represented by a simple complex phase in the unitary matrix (the Cabibbo-Kobayashi-Maskawa matrix) describing the charged weak couplings of the quarks. This simple scheme has never received an accurate validation, because the phenom… more
Date: August 22, 2006
Creator: Fobozzi, Francesco & U., /Naples
Partner: UNT Libraries Government Documents Department
open access

Numerical Study on GRB-Jet Formation in Collapsars

Description: Two-dimensional magnetohydrodynamic simulations are performed using the ZEUS-2D code to investigate the dynamics of a collapsar that generates a GRB jet, taking account of realistic equation of state, neutrino cooling and heating processes, magnetic fields, and gravitational force from the central black hole and self gravity. It is found that neutrino heating processes are not so efficient to launch a jet in this study. It is also found that a jet is launched mainly by B{sub {phi}} fields that … more
Date: August 22, 2006
Creator: Nagataki, Shigehiro; /Kyoto U., Yukawa Inst., Kyoto /KIPAC, Menlo Park; Takahashi, Rohta; U., /Tokyo; Mizuta, Akira; /Garching, Max Planck Inst. et al.
Partner: UNT Libraries Government Documents Department
open access

Approximate Solutions for a Self-Folding Problem of Carbon Nanotubes

Description: This paper treats approximate solutions for a self-folding problem of carbon nanotubes. It has been observed in the molecular dynamics calculations [1] that a carbon nanotube with a large aspect ratio can self-fold due to van der Waals force between the parts of the same carbon nanotube. The main issue in the self-folding problem is to determine the minimum threshold length of the carbon nanotube at which it becomes possible for the carbon nanotube to self-fold due to the van der Waals force. A… more
Date: August 22, 2006
Creator: Mikata, Y.
Partner: UNT Libraries Government Documents Department
open access

Ultrafast Coherent Diffraction Imaging with X-ray Free-Electron Lasers

Description: The ultrafast pulses from X-ray free-electron lasers will enable imaging of non-periodic objects at near-atomic resolution [1, Neutze]. These objects could include single molecules, protein complexes, or virus particles. The specimen would be completely destroyed by the pulse in a Coulomb explosion, but that destruction will only happen after the pulse. The scattering from the sample will give structural information about the undamaged object. There are many technical challenges that must be ad… more
Date: August 22, 2006
Creator: Chapman, H. N.; Bajt, S.; Barty, A.; Benner, W.; Bogan, M.; Frank, M. et al.
Partner: UNT Libraries Government Documents Department
open access

Final Technical Report Transport Task Force

Description: The Transport Task Force has functioned as the primary scientific organization in the area of magnetic-fusion confinement and transport since its inception in 1988. It has defined and set research directions, coordinated broad research efforts, advocated new funding initiatives, and created a highly successful and widely admired interactive culture between experiment, theory and modeling. The Transport Task Force carries out its activities under the direction of its chair and the Executive Comm… more
Date: August 22, 2006
Creator: Terry, P.W.
Partner: UNT Libraries Government Documents Department
open access

REMOVAL OF CHLORIDE FROM ACIDIC SOLUTIONS USING NO2

Description: Chloride (Cl{sup -}) salt processing in strong acids is used to recycle plutonium (Pu) from pyrochemical residues. The Savannah River National Laboratory (SRNL) is studying the potential application of nitrogen dioxide (NO{sub 2}) gas to effectively convert dissolved pyrochemical salt solutions to chloride-free solutions and improve recovery operations. An NO{sub 2} sparge has been shown to effectively remove Cl{sup -} from solutions containing 6-8 M acid (H{sup +}) and up to 5 M Cl{sup -}. Chl… more
Date: August 22, 2006
Creator: Visser, A; Robert Pierce, R & James Laurinat, J
Partner: UNT Libraries Government Documents Department
open access

Synchrotron Based Observations of Sigma Phase Formation and Dissolution in Duplex Stainless Steel

Description: The formation and growth of sigma ({sigma}) phase in 2205 duplex stainless steel was observed and measured in real time using synchrotron radiation during isothermal heat treating at temperatures between 700 C and 850 C. Synchrotron experiments were performed on this material at the Advanced Photon Source (APS) while isothermally holding the samples for times of up to 10 hr. During the isothermal hold, sigma formed in quantities up to 22% as the ferrite transformed to a mixture of sigma and aus… more
Date: August 22, 2006
Creator: Elmer, J.; Palmer, T. & Specht, E.
Partner: UNT Libraries Government Documents Department
open access

Cuba and the State Sponsors of Terrorism List

Description: Cuba was first added to the State Department's list of states sponsoring international terrorism in 1982. At the time, numerous U.S. government reports and statements under the Reagan Administration alleged Cuba's ties to international terrorism and its support for terrorist groups in Latin America. Cuba remains on the state-sponsored terrorism list with four other countries: Iran, Syria, Sudan, and North Korea. Cuba's retention on the terrorism list has received more attention in recent years … more
Date: August 22, 2006
Creator: Sullivan, Mark P.
Partner: UNT Libraries Government Documents Department
open access

Digital Television: An Overview

Description: Digital television (DTV) is a new television service representing the most significant development in television technology since the advent of color television in the 1950s. DTV can provide sharper pictures, a wider screen, CD-quality sound, better color rendition, and other new services currently being developed. A successful deployment of DTV requires: the development by content providers of compelling digital programming; the delivery of digital signals to consumers by broadcast television … more
Date: August 22, 2006
Creator: Kruger, Lennard G.
Partner: UNT Libraries Government Documents Department
open access

Emergency Supplemental Appropriations for Hurricane Katrina Relief

Description: In response to the widespread destruction caused by Hurricane Katrina, the 109th Congress enacted two FY2005 emergency supplemental appropriations bills, which together provided $62.3 billion for emergency response and recovery needs. This CRS report summarizes federal disaster assistance funding legislation in the 109th Congress and presents some information on federal expenditures and obligations for disaster recovery activities.
Date: August 22, 2006
Creator: Bea, Keith
Partner: UNT Libraries Government Documents Department
open access

Free Mail for Troops Overseas

Description: Members of the armed forces on duty in designated combat areas can send personal correspondence, free of postage, to addresses in the United States. There has never been a comparable provision of free postage of letters or packages sent from family members in the United States to loved ones in wartime service overseas. Two bills (H.R. 923 and H.R. 2874) have been introduced that would allow family members and, in the case o H.R. 2874, certain charities to send letters and packages to service me… more
Date: August 22, 2006
Creator: Stevens, Nye
Partner: UNT Libraries Government Documents Department
Back to Top of Screen