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Final Report on Research Conducted under Grant DE-FG02-98ER14857

Description: Work in the Carpenter laboratory under the aegis of grant DE-FG02-98ER14857 concerned the formation, properties, and reactions of organic free radicals known or believed to be important in hydrocarbon combustion. Both computational and experimental methods were employed in these studies.
Date: January 28, 2008
Creator: Carpenter, Barry,K. & Davis, H., Floyd
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Dielectric Wakefield Accelerator Experiments at the SABER Facility

Description: Electron bunches with the unparalleled combination of high charge, low emittances, and short time duration, as first produced at the SLAC Final Focus Test Beam (FFTB), are foreseen to be produced at the SABER facility. These types of bunches have enabled wakefield driven accelerating schemes of multi-GV/m in plasmas. In the context of the Dielectric Wakefield Accelerators (DWA) such beams, having rms bunch length as short as 20 um, have been used to drive 100 um and 200 um ID hollow tubes above… more
Date: January 28, 2008
Creator: Kanareykin, A.; Thompson, M. C.; Berry, M. K.; Blumenfeld, I.; Decker, F. J.; Hogan, M. J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Compound Nucleus Contributions to the Optical Potential

Description: An ab-initio calculation of the optical potential for neutron-nucleus scattering has been performed by explicitly coupling the elastic channel to all the particle-hole (p-h) excitation states in the target. These p-h states may be regarded as doorway states through which the flux flows to more complicated configurations, and (in the end) to long-lived compound nucleus resonances. The random-phase approximation (RPA) provides the linear combinations of p-h states that include the residual intera… more
Date: January 28, 2008
Creator: Thompson, I J; Dietrich, F S; Escher, J E & Dupuis, M
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

STAR Vertex Detector Upgrade Development

Description: We report on the development and prototyping efforts undertaken with the goal of producing a micro-vertex detector for the STAR experiment at the RHIC accelerator at BNL. We present the basic detector requirements and show a sensor development path, conceptual mechanical design candidates and readout architecture. Prototyping and beam test results with current generation MimoSTAR-2 sensors and a readout system featuring FPGA based on-the-fly hit finding and data sparsification are also presente… more
Date: January 28, 2008
Creator: Greiner, Leo C.; Matis, Howard S.; Stezelberger, Thorsten; Vu,Chinh Q.; Wieman, Howard; Szelezniak, Michal et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Quantitive DNA Fiber Mapping

Description: Several hybridization-based methods used to delineate single copy or repeated DNA sequences in larger genomic intervals take advantage of the increased resolution and sensitivity of free chromatin, i.e., chromatin released from interphase cell nuclei. Quantitative DNA fiber mapping (QDFM) differs from the majority of these methods in that it applies FISH to purified, clonal DNA molecules which have been bound with at least one end to a solid substrate. The DNA molecules are then stretched by th… more
Date: January 28, 2008
Creator: Lu, Chun-Mei; Wang, Mei; Greulich-Bode, Karin M.; Weier, Jingly F. & Weier, Heinz-Ulli G.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

EVAPORITE MICROBIAL FILMS, MATS, MICROBIALITES AND STROMATOLITES

Description: Evaporitic environments are found in a variety of depositional environments as early as the Archean. The depositional settings, microbial community and mineralogical composition vary significantly as no two settings are identical. The common thread linking all of the settings is that evaporation exceeds precipitation resulting in elevated concentrations of cations and anions that are higher than in oceanic systems. The Dead Sea and Storrs Lake are examples of two diverse modern evaporitic setti… more
Date: January 28, 2008
Creator: Brigmon, R; Penny Morris, P & Garriet Smith, G
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Foot & Mouth Disease & Ulcerative/Vesicular Rule-outs: Challenges Encountered in Recent Outbreaks

Description: Foot and mouth disease (FMD) is a highly infectious and contagious viral disease affecting bovidae (cattle, zebus, domestic buffaloes, yaks), sheep, goats, swine, all wild ruminants and suidae. Camelidae (camels, dromedaries, llamas, vicunas) have low susceptibility. Foot and mouth disease is caused by a RNS virus of the family Picornaviridae, genus Aphthovirus. There are seven immunologically distinct serotypes: A, O, C, SAT1, SAT2, SAT3, Asia 1. Foot and mouth disease causes significant econo… more
Date: January 28, 2008
Creator: Hullinger, P
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

On the Possibility of Accelerating Positron on an Electron Wake at SABER

Description: A new approach for positron acceleration in non-linear plasma wakefields driven by electron beams is presented. Positrons can be produced by colliding an electron beam with a thin foil target embedded in the plasma. Integration of positron production and acceleration in one stage is realized by a single relativistic, intense electron beam. Simulations with the parameters of the proposed SABER facility [1] at SLAC suggest that this concept could be tested there.
Date: January 28, 2008
Creator: Ischebeck, R.; Joshi, C.; Katsouleas, T. C.; Muggli, P. & Wang, X.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Correlating Pulses from Two Spitfire, 800nm Lasers

Description: The E163 laser acceleration experiments conducted at SLAC have stringent requirements on the temporal properties of two regeneratively amplified, 800nm, Spitfire laser systems. To determine the magnitude and cause of timing instabilities between the two Ti:Sapphire amplifiers, we pass the two beams through a cross-correlator and focus the combined beam onto a Hamamatsu G1117 photodiode. The photodiode has a bandgap such that single photon processes are suppressed and only the second order, two-… more
Date: January 28, 2008
Creator: Colby, Eric R.; Mcguinness, C.; Zacherl, W. D. & Plettner, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

New Fragment Separation Technology for Superheavy Element Research

Description: This project consisted of three major research areas: (1) development of a solid Pu ceramic target for the MASHA separator, (2) chemical separation of nuclear decay products, and (3) production of new isotopes and elements through nuclear reactions. There have been 16 publications as a result of this project, and this collection of papers summarizes our accomplishments in each of the three areas of research listed above. The MASHA (Mass Analyzer for Super-Heavy Atoms) separator is being constru… more
Date: January 28, 2008
Creator: Shaughnessy, D A; Moody, K J; Henderson, R A; Kenneally, J M; Landrum, J H; Lougheed, R W et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

U.S. Global Climate Change Policy: Evolving Views on Cost, Competitiveness, and Comprehensiveness

Description: This report discusses the evolving views on cost, competitiveness, and comprehensiveness regarding the U.S. global climate change policy. The report starts out with the U.N. Framework Convention on Climate Change (UNFCCC). It discusses the Energy Policy Act of 1992 (EPACT), and negotiations on the Kyoto Protocol, which established mandatory limits on emissions for developed countries.
Date: January 28, 2008
Creator: Parker, Larry B. & Blodgett, John E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Air Quality Issues and Animal Agriculture: A Primer

Description: This report reviews the types of air emissions from livestock and poultry operations and their human health and environmental impacts. It then discusses provisions of several federal laws concerned with environmental impacts, beginning with the Clean Water Act, because protecting water resources has been the primary regulatory focus regarding livestock and animal operations.
Date: January 28, 2008
Creator: Copeland, Claudia
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Nuclear Energy Policy

Description: This report discusses the nuclear energy policy issues facing Congress that include the implementation of federal incentives for new commercial reactors, radioactive waste management policy, research and development priorities, power plant safety and regulation, nuclear weapons proliferation, and security against terrorist attacks.
Date: January 28, 2008
Creator: Holt, Mark
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

State and Local Restrictions on Employing, Renting Property to, or Providing Services for Unauthorized Aliens: Legal Issues and Recent Judicial Developments

Description: This report discusses the constitutional issues raised in relation to state and local laws intended to deter the presence of unauthorized aliens, along with the implications that federal civil rights statutes might have on the implementation and enforcement of measures restricting such persons' ability to obtain employment, housing, or other state and local benefits or services.
Date: January 28, 2008
Creator: Garcia, Michael John; Feder, Jody & Smith, Alison M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Loan Forgiveness for Public Service Employees Under the William D. Ford Direct Loan Program

Description: The College Cost Reduction and Access Act of 2007 (CCRAA; P.L. 110-84) establishes a new loan forgiveness provision for borrowers of loans made under the William D. Ford Direct Loan (DL) program who are employed in public service jobs for 10 years during the repayment of their loans. This report provides a brief description of the DL program loan forgiveness provision for public service employees and identifies issues that may be addressed as it is implemented.
Date: January 28, 2008
Creator: Smole, David P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Agricultural Biotechnology: The U.S.-EU Dispute

Description: This report focuses on a conflict between the European Union (EU) and the United States, Canada, and Argentina. The United States suggests that the European Union's moratorium costs the U.S. 300 million dollars in exports to the EU annually. Moreover, the report highlights other concerns the U.S. has with the EU's biotechnology policies.
Date: January 28, 2008
Creator: Hanrahan, Charles E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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