UNT Libraries Government Documents Department - 2,754 Matching Results

Search Results

Results: 1 - 24 next
open access

1-D Van der Waals Foams Heated by Ion Beam Energy Deposition

Description: One dimensional simulations of various initial average density aluminum foams (modeled as slabs of solid metal separated by low density regions) heated by volumetric energy deposition are conducted with a Lagrangian hydrodynamics code using a van der Waals equation of tate (EOS). The resulting behavior is studied to facilitate the design of future warm dense matter (WDM) experiments at LBNL. In the simulations the energy deposition ranges from 10 to 30 kJ/g and from 0.075 to 4.0 ns total pulse … more
Date: December 23, 2009
Creator: Zylstra, A. B.; Barnard, J. J. & More, R. M.
open access

85-GAL DRUM AND NUCFIL-007LS FILTERS

Description: {sm_bullet} 55-gallon drums were overpacked into 85-gallon drums {sm_bullet} ANucFiI-007LS long-stem filter was installed- NucFiI certified the use of NucFiI-007LS filters in 8S-gallon drums as DOT 7AType A - Wood wedges were used during the tests to center and . stabilize the inner 55-gallon drums {sm_bullet} During inspection, afew filters were found to be loose, canted, and/or with RTV seals broken - No contamination or loss of container integrity {sm_bullet} Discovered in November 2008 U.
Date: June 30, 2009
Creator: Woodbury, J. B.
open access

300 AREA URANIUM CONTAMINATION

Description: {sm_bullet} Uranium fuel production {sm_bullet} Test reactor and separations experiments {sm_bullet} Animal and radiobiology experiments conducted at the. 331 Laboratory Complex {sm_bullet} .Deactivation, decontamination, decommissioning,. and demolition of 300 Area facilities
Date: July 2, 2009
Creator: Borghese, J. V.
open access

1500 MHZ Passive SRF Cavity for Bunch Lengthening in the NSLS-II Storage Ring

Description: NSLS-II is a new ultra-bright 3 GeV 3rd generation synchrotron radiation light source. The performance goals require operation with a beam current of 500mA and a bunch current of at least 0.5mA. Ion clearing gaps are required to suppress ion effects on the beam. The natural bunch length of 3mm is planned to be lengthened by means of a third harmonic cavity in order to increase the Touschek limited lifetime. After an extensive investigation of different cavity geometries, a passive, superconduct… more
Date: May 4, 2009
Creator: Yanagisawa,T.; Rose, J.; Grimm, T. & Bogle, A.
open access

1Surface structure of cleaved (001) USB2 single crystal surface

Description: We have achieved what we believe to be the first atomic resolution STM images for a uranium compound USb2 taken at room temperature. The a, b, and c lattice parameters in the images confirm that the tetragonal USb2crystals cleave on the (00 I) basal plane as expected. Our calculations indicate a symmetric cut between Sb planes to be the most favorable cleavage plane and U atoms to be responsible for most ofthe density of states measured by STM. Since the spacing between Sb atoms and between U a… more
Date: January 1, 2009
Creator: Chen, Shao-ping
open access

2008 Atomic and Molecular Interactions GRC-July 6-11, 2008

Description: The Atomic and Molecular Interactions Gordon Conferences is justifiably recognized for its broad scope, touching on areas ranging from fundamental gas phase and gas-condensed matter collision dynamics, to laser-molecule interactions, photophysics, and unimolecular decay processes. The meeting has traditionally involved scientists engaged in fundamental research in gas and condensed phases and those who apply these concepts to systems of practical chemical and physical interest. A key tradition … more
Date: June 3, 2009
Creator: Gray, Arthur Suits Nancy Ryan
open access

2008 Co2 Assimilation in Plants: Genome to Biome Gordon Research Conference - August 17-22

Description: Formerly entitled 'CO2 Fixation and Metabolism in Green Plants', this long-standing Gordon Research Conference has been held on a triennial basis since 1976. In 1990 the participants decided to alternate between sites in the U.S. and outside the U.S. The 2005 conference was held in Europe at the Centre Paul Langevin in Aussois, France, so the 2008 conference returns to a U.S. site - the University of New England in Biddeford, Maine. The 2008 conference covers basic plant research related to pho… more
Date: August 12, 2009
Creator: Maroney, James V.
open access

2008 Photoions, Photoionization & Photodetachment Gordon Research Conference January 27-February 1, 2008

Description: This conference brings together scientists interested in a range of basic phenomena linked to the ejection and scattering of electrons from atoms, molecules, clusters, liquids and solids by absorption of light. Photoionization, a highly sensitive probe of both structure and dynamics, can range from perturbative single-photon processes to strong-field highly non-perturbative interactions. It is responsible for the formation and destruction of molecules in astrophysical and plasma environments an… more
Date: March 31, 2009
Creator: GRay, Klaus Muller-Dethefs Nancy Ryan
open access

2008 Wind Energy Projects, Wind Powering America (Poster)

Description: The Wind Powering America program produces a poster at the end of every calendar year that depicts new U.S. wind energy projects. The 2008 poster includes the following projects: Stetson Wind Farm in Maine; Dutch Hill Wind Farm in New York; Grand Ridge Wind Energy Center in Illinois; Hooper Bay, Alaska; Forestburg, South Dakota; Elbow Creek Wind Project in Texas; Glacier Wind Farm in Montana; Wray, Colorado; Smoky Hills Wind Farm in Kansas; Forbes Park Wind Project in Massachusetts; Spanish For… more
Date: January 1, 2009
open access

2009 Epigenetics Gordon Research Conference (August 9 - 14, 2009)

Description: Epigenetics refers to the study of heritable changes in genome function that occur without a change in primary DNA sequence. The 2009 Gordon Conference in Epigenetics will feature discussion of various epigenetic phenomena, emerging understanding of their underlying mechanisms, and the growing appreciation that human, animal, and plant health all depend on proper epigenetic control. Special emphasis will be placed on genome-environment interactions particularly as they relate to human disease. … more
Date: August 14, 2009
Creator: Lee, Jeanie
open access

2009 MICROBIAL POPULATION BIOLOGY GORDON RESEARCH CONFERENCES JULY 19-24,2009

Description: The 2009 Gordon Conference on Microbial Population Biology will cover a diverse range of cutting edge issues in the microbial sciences and beyond. Firmly founded in evolutionary biology and with a strongly integrative approach, past Conferences have covered a range of topics from the dynamics and genetics of adaptation to the evolution of mutation rate, community ecology, evolutionary genomics, altruism, and epidemiology. The 2009 Conference is no exception, and will include sessions on the evo… more
Date: July 24, 2009
Creator: Dean, Anthony
open access

2009 Photosynthesis to be held June 28 - July 3, 2009

Description: The capture of solar energy by photosynthesis has had a most profound influence on the development and sustenance of life on earth. It is the engine that has driven the proliferation of life and, as the source of both energy and oxygen, has had a major hand in shaping the forms that life has taken. Both ancient and present day photosynthetic carbon fixation is intimately tied to issues of immediate human concern, global energy and global warming. Decreasing our reliance on fossil fuels by tappi… more
Date: July 6, 2009
Creator: Bruce, Doug
open access

2009 Pilot Scale Fluidized Bed Steam Reforming Testing Using the Thor (Thermal Organic Reduction) Process: Analytical Results for Tank 48h Organic Destruction - 10408

Description: The Savannah River Site (SRS) must empty the contents of Tank 48H, a 1.3 million gallon Type IIIA HLW storage tank, to return this tank to service. The tank contains organic compounds, mainly potassium tetraphenylborate that cannot be processed downstream until the organic components are destroyed. The THOR{reg_sign} Treatment Technologies (TTT) Fluidized Bed Steam Reforming (FBSR) technology, herein after referred to as steam reforming, has been demonstrated to be a viable process to remove gr… more
Date: December 28, 2009
Creator: Williams, M. R.; Jantzen, Carol M.; Burket, P. R.; Crawford, C. L.; Daniel, W. E.; Aponte, C. et al.
open access

2009 Plant Lipids: Structure, Metabolism & Function Gordon Research Conference - February 1- 6 ,2009

Description: The Gordon Research Conference on 'Plant Lipids: Structure, Metabolism and Function' has been instituted to accelerate research productivity in the field of plant lipids. This conference will facilitate wide dissemination of research breakthroughs, support recruitment of young scientists to the field of plant lipid metabolism and encourage broad participation of the plant lipid community in guiding future directions for research in plant lipids. This conference will build upon the strengths of … more
Date: February 6, 2009
Creator: Chapman, Kent D.
open access

3D design activities at Fermilab: Opportunities for physics

Description: Fermilab began exploring the technologies for vertically integrated circuits (also commonly known as 3D circuits) in 2006. These technologies include through silicon vias (TSV), circuit thinning, and bonding techniques to replace conventional bump bonds. Since then, the interest within the High Energy Physics community has grown considerably. This paper will present an overview of the activities at Fermilab over the last 3 years which have helped spark this interest.
Date: January 1, 2009
Creator: Yarema, Raymond; Deptuch, Grezgorz; Hoff, Jim; Shenai, Alpana; Trimpl, Marcel; Zimmerman, Tom et al.
open access

3D Simulations of Secondary Electron Generation and Transport in a Diamond Electron Beam Amplifier

Description: The Relativistic Heavy Ion Collider (RHIC) contributes fundamental advances to nuclear physics by colliding a wide range of ions. A novel electron cooling section, which is a key component of the proposed luminosity upgrade for RHIC, requires the acceleration of high-charge electron bunches with low emittance and energy spread. A promising candidate for the electron source is the recently developed concept of a high quantum efficiency photoinjector with a diamond amplifier. To assist in the dev… more
Date: May 4, 2009
Creator: Busby, R.; Rao, T.; Dimitrov, D. A.; Cary, J. R.; Ben-Zvi, Ilan; Chang, X. et al.
open access

The (3He,tf) as a surrogate reaction to determine (n,f) cross sections in the 10 to 20 MeV energy range

Description: The surrogate reaction 238U(3He,tf) is used to determine the 237Np(n,f) cross section indirectly over an equivalent neutron energy range from 10 to 20 MeV. A self-supporting ~;;761 mu g/cm2 metallic 238U foil was bombarded with a 42 MeV 3He2+ beam from the 88-Inch Cyclotron at Lawrence Berkeley National Laboratory (LBNL). Outgoing charged particles and fission fragments were identified using the Silicon Telescope Array for Reaction Studies (STARS), consists of two 140 mu m and one 1000 mu m Mic… more
Date: February 25, 2009
Creator: Basunia, M. S.; Clark, R. M.; Goldblum, B. L.; Bernstein, L. A.; Phair, L.; Burke, J. T. et al.
open access

5000 groove/mm multilayer-coated blazed grating with 33percent efficiency in the 3rd order in the EUV wavelength range

Description: We report on recent progress in developing diffraction gratings which can potentially provide extremely high spectral resolution of 105-106 in the EUV and soft x-ray photon energy ranges. Such a grating was fabricated by deposition of a multilayer on a substrate which consists ofa 6-degree blazed grating with a high groove density. The fabrication of the substrate gratings was based on scanning interference lithography and anisotropic wet etch of silicon single crystals. The optimized fabricati… more
Date: July 7, 2009
Creator: Lawrence Berkeley National Laboratory. Advanced Light Source.
Back to Top of Screen