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3-D Model of Broadband Emission from Supernova Remnants Undergoing Non-linear Diffusive Shock Acceleration

Description: We present a 3-dimensional model of supernova remnants (SNRs) where the hydrodynamical evolution of the remnant is modeled consistently with nonlinear diffusive shock acceleration occurring at the outer blast wave. The model includes particle escape and diffusion outside of the forward shock, and particle interactions with arbitrary distributions of external ambient material, such as molecular clouds. We include synchrotron emission and cooling, bremsstrahlung radiation, neutral pion production… more
Date: July 2, 2008
Creator: Lee, Shiu-Hang; Kamae, Tuneyoshi & Ellison, Donald C.
Partner: UNT Libraries Government Documents Department
open access

10-kJ Status and 100-kJ Future for NIF PetaWatt Technology

Description: We discuss the status of the NIF ARC, an 8-beam 10-kJ class high-energy petawatt laser, and the future upgrade path of this and similar systems to 100-kJ-class with coherent phasing of multiple apertures.
Date: July 2, 2007
Creator: Siders, C W; Crane, J K; Rushford, M C; Haefner, L C; Hernandez, J E; Dawson, J W et al.
Partner: UNT Libraries Government Documents Department
open access

105-N charge-discharge rates

Description: Figures have and can be generated that indicate a higher charge-discharge rate if required before 105-N will be comparable with existing reactors. Also, these figures show an apparent operating cost incentive to increase the charge-discharge rates proposed for 105-N. Although these figures may be true by themselves, other figures developed from the same information and stated on a basis that affords a true comparison, show that the proposed rates for 105-N are compatible with those in existing … more
Date: July 2, 1959
Creator: Nesbitt, J. F.
Partner: UNT Libraries Government Documents Department
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.
Partner: UNT Libraries Government Documents Department
open access

1998 interim 242-A Evaporator tank system integrity assessment report

Description: This Integrity Assessment Report (IAR) is prepared by Fluor Daniel Northwest (FDNW) under contract to Lockheed-Martin Hanford Company (LMHC) for Waste Management Hanford (WMH), the 242-A Evaporator (facility) operations contractor for Fluor Daniel Hanford, and the US Department of Energy, the system owner. The contract specifies that FDNW perform an interim (5 year) integrity assessment of the facility and prepare a written IAR in accordance with Washington Administrative Code (WAC) 173-303-640… more
Date: July 2, 1998
Creator: Jensen, C.E.
Partner: UNT Libraries Government Documents Department
open access

2010 CATALYSIS GORDON RESEARCH CONFERENCE, JUNE 27 - JULY 2, 2010, NEW LONDON, NEW HAMPSHIRE

Description: Catalysis is a key technology for improving the quality of life while simultaneously reducing the adverse impact of human activities on the environment. The discovery of new catalytic processes and the improvement of existing ones are also critically important for securing the nation's energy supply. The GRC on Catalysis is considered one the most prestigious conference for catalysis research, bringing together leading researchers from both academia, industry and national labs to discuss the la… more
Date: July 2, 2010
Creator: Datye, Abhaya
Partner: UNT Libraries Government Documents Department
open access

2010 POLYMER PHYSICS - JUNE 27 - JULY 2, 2010

Description: The 2010 Gordon Research Conference on Polymer Physics will provide outstanding lectures and discussions in this critical field that impacts every industrial sector from electronics to transportation to medicine to textiles to energy generation and storage. Fundamental topics range from mechanical properties of soft gels to new understanding in polymer crystallization to energy conversion and transmission to simulating polymer dynamics at the nanoscale. This international conference will featur… more
Date: July 2, 2010
Creator: Winey, Karen
Partner: UNT Libraries Government Documents Department
open access

235U and TRU Holdup Measurements on the 321-M Sawbenches

Description: The Analytical Development Section of Savannah River Technology Center (SRTC) was requested by the Facilities Disposition Projects (FDP) to determine the holdup of enriched uranium in the 321-M facility as part of an overall deactivation project of the facility. The 321-M facility was used to fabricate enriched uranium fuel assemblies, lithium-aluminum target tubes, neptunium assemblies, and miscellaneous components for the production reactors. The results of the holdup assays are essential for… more
Date: July 2, 2004
Creator: Dewberry, R
Partner: UNT Libraries Government Documents Department
open access

Access to Broadband Networks: The Net Neutrality Debate

Description: This report discusses the current debate over "net neutrality". While there is no single accepted definition of "net neutrality," most agree that any such definition should include the general principles that owners of the networks that compose and provide access to the Internet should not control how consumers lawfully use that network, and they should not be able to discriminate against content provider access to that network.
Date: July 2, 2014
Creator: Gilroy, Angele A.
Partner: UNT Libraries Government Documents Department
open access

Actions Needed to Improve the Transparency and Reliability of Labor's Data on the H-2A Program

Description: Correspondence issued by the Government Accountability Office with an abstract that begins "The H-2A visa program allows U.S. employers that anticipate a shortage of domestic agricultural workers to hire foreign workers on a temporary basis. GAO issued a report on the process employers follow in applying for these workers and made several recommendations to the Department of Labor (Labor) for improving that process In pursuing work on that report, GAO found that the number of applications submi… more
Date: July 2, 2013
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
open access

AIR PASSIVATION OF METAL HYDRIDE BEDS FOR WASTE DISPOSAL

Description: Metal hydride beds offer compact, safe storage of tritium. After metal hydride beds have reached the end of their useful life, the beds will replaced with new beds and the old beds prepared for disposal. One acceptance criteria for hydride bed waste disposal is that the material inside the bed not be pyrophoric. To determine the pyrophoric nature of spent metal hydride beds, controlled air ingress tests were performed. A simple gas handling manifold fitted with pressure transducers and a calibr… more
Date: July 2, 2007
Creator: Klein, J & R. H. Hsu, R
Partner: UNT Libraries Government Documents Department
open access

Alloy Design and Thermomechanical Processing of a Beta Titanium Alloy for a Heavy Vehicle Application

Description: With the strength of steel, but at half the weight, titanium has the potential to offer significant benefits in the weight reduction of heavy vehicle components while possibly improving performance. However, the cost of conventional titanium fabrication is a major barrier in implementation. New reduction technologies are now available that have the potential to create a paradigm shift in the way the United States uses titanium, and the economics associated with fabrication of titanium component… more
Date: July 2, 2010
Creator: Blue, Craig A. & Peter, William H.
Partner: UNT Libraries Government Documents Department
open access

Analytic studies of the long range beam-beam tune shifts and chromaticities

Description: A formula is derived, which allows efficient analytical evaluation of the long range beam-beam tune shifts and chromaticities with amplitude. It assumes that the beams are infinitely short, oppositely charged, and with Gaussian transversal profile. The formula employs an infinite sum with favorable convergence rates, making it well suited especially for the long range case. Applications to the Tevatron are presented, including some proposed compensation schemes and their effect on the dynamic a… more
Date: July 2, 2002
Creator: Sen, Bela Erdelyi and Tanaji
Partner: UNT Libraries Government Documents Department
open access

Analytical results on leachings from Nutsche Filters

Description: This report describes results of an investigation to determine whether plutonium nitrates and lanthanum compounds were being entrained on the filter aid and filter block of the Nutsche Filters in Cell 2 of Bldg. 231. Leach samples were analyzed for La, Pu, phosphate, fluoride, Pu{sup 240}, and Am. From the data the authors concluded that the holdup on the Nutsche Filter is due to insoluble plutonium compounds either filtered from solution, or more likely, formed on the filter. These compounds w… more
Date: July 2, 1951
Creator: Barton, G.B.
Partner: UNT Libraries Government Documents Department
open access

Analytical study and tracking simulations of the beam-beam compensation at Tevatron

Description: Head-on and long-range induced tunespread of about 0.025 in the Tevatron collider at Run II (together with the increased strength of the resonances) can significantly deteriorate the {bar p} lifetime and the collider luminosity. It was proposed to employ the so-called Tevatron Electron Lenses (TEL) to compress the beam-beam footprint and eliminate completely the bunch-to-bunch tunespread (PACMAN effect) for small amplitude particles. The first lens has been recently installed and tested [1]. Th… more
Date: July 2, 2001
Creator: Shatilov, Dmitry; Alexahin, Yuri & Shiltsev, Vladimir
Partner: UNT Libraries Government Documents Department
open access

Anisotropic x ray magnetic linear dichroism - Its importance for the analysis of soft x ray spectra of magnetic oxides

Description: Using spectroscopic information for x ray magnetometry and magnetic microscopy requires detailed theoretical understanding of spectral shape and magnitude of dichroism signals. We have shown unambiguously that--contrary to common belief--spectral shape and magnitude of x ray magnetic linear dichroism (XMLD) are not only determined by the relative orientation of magnetic moments and x ray polarization, but also their orientations relative to the crystallographic axes must be taken into account f… more
Date: July 2, 2008
Creator: van der Laan, G. & Arenholz, Elke
Partner: UNT Libraries Government Documents Department
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