States

Month

The Navy Biofuel Initiative Under the Defense Production Act (open access)

The Navy Biofuel Initiative Under the Defense Production Act

This report looks at the Memorandum of Understanding (MOU) to “assist the development and support of a sustainable commercial biofuels industry" which was entered into by the Secretaries of Energy, Agriculture, and the Navy. It raises issues and concerns for Congress to consider when deciding how to fund MOU.
Date: June 22, 2012
Creator: Andrews, Anthony; Bracmort, Kelsi; Brown, Jared T. & Else, Daniel H.
Object Type: Report
System: The UNT Digital Library
A Posteriori Error Estimation via Nonlinear Error Transport (open access)

A Posteriori Error Estimation via Nonlinear Error Transport

None
Date: June 22, 2012
Creator: Banks, J W; Hittinger, J F; Connors, J M & Woodward, C S
Object Type: Article
System: The UNT Digital Library
2012 CELLULAR & MOLECULAR FUNGAL BIOLOGY GORDON RESEARCH CONFERENCE, JUNE 17 - 22, 2012 (open access)

2012 CELLULAR & MOLECULAR FUNGAL BIOLOGY GORDON RESEARCH CONFERENCE, JUNE 17 - 22, 2012

The Gordon Research Conference on CELLULAR & MOLECULAR FUNGAL BIOLOGY was held at Holderness School, Holderness New Hampshire, June 17 - 22, 2012. The 2012 Gordon Conference on Cellular and Molecular Fungal Biology (CMFB) will present the latest, cutting-edge research on the exciting and growing field of molecular and cellular aspects of fungal biology. Topics will range from yeast to filamentous fungi, from model systems to economically important organisms, and from saprophytes and commensals to pathogens of plants and animals. The CMFB conference will feature a wide range of topics including systems biology, cell biology and morphogenesis, organismal interactions, genome organisation and regulation, pathogenesis, energy metabolism, biomass production and population genomics. The Conference was well-attended with 136 participants. Gordon Research Conferences does not permit publication of meeting proceedings.
Date: June 22, 2012
Creator: Berman, Judith
Object Type: Article
System: The UNT Digital Library
Global Fits of the Minimal Universal Extra Dimensions Scenario (open access)

Global Fits of the Minimal Universal Extra Dimensions Scenario

In theories with Universal Extra-Dimensions (UED), the {gamma}{sub 1} particle, first excited state of the hypercharge gauge boson, provides an excellent Dark Matter (DM) candidate. Here we use a modified version of the SuperBayeS code to perform a Bayesian analysis of the minimal UED scenario, in order to assess its detectability at accelerators and with DM experiments. We derive in particular the most probable range of mass and scattering cross sections off nucleons, keeping into account cosmological and electroweak precision constraints. The consequences for the detectability of the {gamma}{sub 1} with direct and indirect experiments are dramatic. The spin-independent cross section probability distribution peaks at {approx} 10{sup -11} pb, i.e. below the sensitivity of ton-scale experiments. The spin-dependent cross-section drives the predicted neutrino flux from the center of the Sun below the reach of present and upcoming experiments. The only strategy that remains open appears to be direct detection with ton-scale experiments sensitive to spin-dependent cross-sections. On the other hand, the LHC with 1 fb{sup -1} of data should be able to probe the current best-fit UED parameters.
Date: June 22, 2012
Creator: Bertone, Gianfranco; Kong, Kyoungchul; de Austri, Roberto Ruiz & Trotta, Roberto
Object Type: Article
System: The UNT Digital Library
Cancer Prevention and Research Institute of Texas Strategic Plan: Fiscal Years 2013-2017 (open access)

Cancer Prevention and Research Institute of Texas Strategic Plan: Fiscal Years 2013-2017

Agency strategic plan for the Cancer Prevention and Research Institute of Texas describing the organization's planned services, activities, and other goals during fiscal years 2013 through 2017.
Date: June 22, 2012
Creator: Cancer Prevention and Research Institute of Texas
Object Type: Book
System: The Portal to Texas History
Generic Model Host System Design (open access)

Generic Model Host System Design

There are many simulation codes for accelerator modelling; each one has some strength but not all. A platform which can host multiple modelling tools would be ideal for various purposes. The model platform along with infrastructure support can be used not only for online applications but also for offline purposes. Collaboration is formed for the effort of providing such a platform. In order to achieve such a platform, a set of common physics data structure has to be set. Application Programming Interface (API) for physics applications should also be defined within a model data provider. A preliminary platform design and prototype is discussed.
Date: June 22, 2012
Creator: Chu, Chungming; Wu, Juhao; Qiang, Ji & Shen, Guobao
Object Type: Article
System: The UNT Digital Library
Intermediate Energy Nuclear Physics Program (open access)

Intermediate Energy Nuclear Physics Program

The originally proposed and funded research activities followed two major areas of study: semileptonic probes of the hadronic neutral current and charm production. The charm production work revolved around the Jefferson Lab experiment E03-008, 'Sub-threshold J/psi Photoprouction', which ran in late 2004. The PI was a co-spokesperson for the experiment. For the three year renewal proposal starting in 2007, the scope and size of the research project changed and increased. In addition to the parity violating studies, the PI had well defined lead roles in a series experiments nucleon spin-structure functions.
Date: June 22, 2012
Creator: Dunne, James, A.
Object Type: Report
System: The UNT Digital Library
Military Construction: A Snapshot of the President's FY2013 Appropriations Request (open access)

Military Construction: A Snapshot of the President's FY2013 Appropriations Request

This report looks at President Obama's FY2013 budget request, which included an $11.2 billion for military construction appropriations.
Date: June 22, 2012
Creator: Else, Daniel H.
Object Type: Report
System: The UNT Digital Library
2012 CHEMISTRY & PHYSICS OF GRAPHITIC CARBON MATERIALS GORDON RESEARCH CONFERENCE, JUNE 17-22, 2012 (open access)

2012 CHEMISTRY & PHYSICS OF GRAPHITIC CARBON MATERIALS GORDON RESEARCH CONFERENCE, JUNE 17-22, 2012

This conference will highlight the urgency for research on graphitic carbon materials and gather scientists in physics, chemistry, and engineering to tackle the challenges in this field. The conference will focus on scalable synthesis, characterization, novel physical and electronic properties, structure-properties relationship studies, and new applications of the carbon materials. Contributors
Date: June 22, 2012
Creator: Fertig, Herbert
Object Type: Article
System: The UNT Digital Library
A Cryogenic RF Material Testing Facility at SLAC (open access)

A Cryogenic RF Material Testing Facility at SLAC

The authors have developed an X-band SRF testing system using a high-Q copper cavity with an interchangeable flat bottom for the testing of different materials. By measuring the Q of the cavity, the system is capable to characterize the quenching magnetic field of the superconducting samples at different power level and temperature, as well as the surface resistivity. This paper presents the most recent development of the system and testing results.
Date: June 22, 2012
Creator: Guo, Jiquan; Martin, David; Tantawi, Sami & Yoneda, Charles
Object Type: Article
System: The UNT Digital Library
High-speed, multi-channel detector readout electronics for fast radiation detectors (open access)

High-speed, multi-channel detector readout electronics for fast radiation detectors

In this project, we are developing a high speed digital spectrometer that a) captures detector waveforms at rates up to 500 MSPS b) has upgraded event data acquisition with additional data buffers for zero dead time operation c) moves energy calculations to the FPGA to increase spectrometer throughput in fast scintillator applications d) uses a streamlined architecture and high speed data interface for even faster readout to the host PC These features are in addition to the standard functions in our existing spectrometers such as digitization, programmable trigger and energy filters, pileup inspection, data acquisition with energy and time stamps, MCA histograms, and run statistics. In Phase I, we upgraded one of our existing spectrometer designs to demonstrate the key principle of fast waveform capture using a 500 MSPS, 12 bit ADC and a Xilinx Virtex-4 FPGA. This upgraded spectrometer, named P500, performed well in initial tests of energy resolution, pulse shape analysis, and timing measurements, thus achieving item (a) above. In Phase II, we are revising the P500 to build a commercial prototype with the improvements listed in items (b)-(d). As described in the previous report, two devices were built to pursue this goal, named the Pixie-500 and the …
Date: June 22, 2012
Creator: Hennig, Wolfgang
Object Type: Report
System: The UNT Digital Library
Demonstration of LED Retrofit Lamps at the Smithsonian American Art Museum, Washington, DC (open access)

Demonstration of LED Retrofit Lamps at the Smithsonian American Art Museum, Washington, DC

This report documents observations and results obtained from a lighting demonstration project conducted under the U.S. Department of Energy GATEWAY Solid-State Lighting (SSL) Technology Demonstration Program at the Smithsonain American Art Museum in Washington, DC. LED Lamp samples were tested in the museum workshop, temporarily installed in a gallery for feedback, and ultimately replaced all traditional incandescent lamps in one gallery of modernist art at the American Art Museum and partially replacing lamps in two galleries at the Musesum's Renwick Gallery. This report describes the selection and testing process, technology challenges, perceptions, economics, energy use, and mixed results of usign LED replacement lamps in art galleries housing national treasures.
Date: June 22, 2012
Creator: Miller, Naomi J. & Rosenfeld, Scott M.
Object Type: Report
System: The UNT Digital Library
Portable Neutron Sensors for Emergency Response Operations (open access)

Portable Neutron Sensors for Emergency Response Operations

This slide-show presents neutron measurement work, including design, use and performance of different neutron detection systems.
Date: June 22, 2012
Creator: Mukhopadhyay, S.; Maurer, R. & Detweiler, R.
Object Type: Article
System: The UNT Digital Library
Defining How a Microbial Cell Senses and Responds to a Redox Active Environment (open access)

Defining How a Microbial Cell Senses and Responds to a Redox Active Environment

This grant was for four years, and the work was designed to look at the mechanisms of extracellular electron transfer by the dissimilatory iron reducing bacteria Shewanella oneidensis MR-1, and other closely related Shewanella strains and species. During this work, we defined many of the basic physiological and biochemical properties of the Shewanella group, Much of which was summarized in review articles. We also finished and published the genome sequence of strain MR-1, the first of the shewanellae to have its genome sequenced. Control at the transcriptional and translational level was studied in collaboration with colleagues at PNNL and ANL. We utilized synchrotron X-ray radiation to image both the bacteria and the metal oxide particles via a technique called STXM, synchrotron X-ray absorption (ref. No.9), and X-ray microbeam analysis. We purified several of the cytochromes involved with metal reduction, and improved gene annotation of the MR-1 genome. The conductive appendages (nanowires) of MR-1 were described and characterized. Comparative genomics and biochemistry revealed that the pathway for the utilization of N-acetyl glucosamine in the various strains of Shewanella exhibited great variability, and had a number of previously unknown genes.
Date: June 22, 2012
Creator: Nealson, Kenneth H.
Object Type: Report
System: The UNT Digital Library
Studies of Space Charge Effects in the Proposed CERN PS2 (open access)

Studies of Space Charge Effects in the Proposed CERN PS2

A new proton synchrotron, the PS2, is under design study to replace the current proton synchrotron at CERN for the LHC upgrade. Nonlinear space charge effects could cause significant beam emittance growth and particle losses and limit the performance of the PS2. In this paper, we report on studies of the potential space-charge effects at the PS2 using three-dimensional self-consistent macroparticle tracking codes, IMPACT, MaryLie/IMPACT, and Synergia. We will present initial benchmark results among these codes. Effects of space-charge on the emittance growth, especially due to synchrotron coupling, aperture sizes, initial painted distribution, and RF ramping scheme will also be discussed.
Date: June 22, 2012
Creator: Qiang, Ji; Ryne, Robert; De Maria, Riccardo; Macridin, Alexandru; Spentzouris, Panagiotis; Papaphilippou, Yannis et al.
Object Type: Article
System: The UNT Digital Library
Railroad Commission of Texas Strategic Plan: Fiscal Years 2013-2017 (open access)

Railroad Commission of Texas Strategic Plan: Fiscal Years 2013-2017

Agency strategic plan for the Railroad Commission of Texas describing the organization's planned services, activities, and other goals during fiscal years 2013 through 2017.
Date: June 22, 2012
Creator: Railroad Commission of Texas
Object Type: Book
System: The Portal to Texas History
Breaking the Attosecond, Angstrom and TV/M Field Barriers with Ultra-Fast Electron Beams (open access)

Breaking the Attosecond, Angstrom and TV/M Field Barriers with Ultra-Fast Electron Beams

Recent initiatives at UCLA concerning ultra-short, GeV electron beam generation have been aimed at achieving sub-fs pulses capable of driving X-ray free-electron lasers (FELs) in single-spike mode. This use of very low Q beams may allow existing FEL injectors to produce few-100 attosecond pulses, with very high brightness. Towards this end, recent experiments at the LCLS have produced {approx}2 fs, 20 pC electron pulses. We discuss here extensions of this work, in which we seek to exploit the beam brightness in FELs, in tandem with new developments in cryogenic undulator technology, to create compact accelerator-undulator systems that can lase below 0.15 {angstrom}, or be used to permit 1.5 {angstrom} operation at 4.5 GeV. In addition, we are now developing experiments which use the present LCLS fs pulses to excite plasma wakefields exceeding 1 TV/m, permitting a table-top TeV accelerator for frontier high energy physics applications.
Date: June 22, 2012
Creator: Rosenzweig, James; Andonian, Gerard; Fukasawa, Atsushi; Hemsing, Erik; Marcus, Gabriel; Marinelli, Agostino et al.
Object Type: Article
System: The UNT Digital Library
Plot/SurfW: Plotting Utility for EDGE2D Output (open access)

Plot/SurfW: Plotting Utility for EDGE2D Output

This report describes a utility that was developed to display EDGE2D results. The utility is focused on results that relate to impurity density, velocity, and particle fluxes in the SOL and divertor. Due to the complicated nature of 2D impurity sources, the concentration of the thermal force near the separatrix and near the divertor entrance, the impurity flow pattern and impurity densities are not necessarily easy to visualize. Thus, we wanted a utility that allowed simple and quick visualization of the impurity behavior. In order to achieve this we overlaid the divertor hardware for plots inside the divertor and we expanded the appearance of the main chamber SOL by plotting distance along the field lines vs. SOL depth with the density (or velocity or flux or other quantity) the false colour. Also, we allowed for the plotted variable to be a function of the other EDGE2D result variables. __________________________________________________
Date: June 22, 2012
Creator: Strachan, W.M. Davis and J.D.
Object Type: Report
System: The UNT Digital Library
Magnetic Guiding for Electron Fast Ignition (open access)

Magnetic Guiding for Electron Fast Ignition

None
Date: June 22, 2012
Creator: Strozzi, D. J.; Tabak, M.; Larson, D. J.; Shay, H. D.; Divol, L.; Kemp, A. J. et al.
Object Type: Article
System: The UNT Digital Library
Texas Engineering Extension Service Historically Underutilized Business Strategic Plan: 2013 (open access)

Texas Engineering Extension Service Historically Underutilized Business Strategic Plan: 2013

Strategic plan for the Texas Engineering Extension Service outlining goals, objectives, measures, and other information about working with Historically Underutilized Businesses (HUBs) during fiscal year 2013.
Date: June 22, 2012
Creator: Texas A & M University. Engineering Extension Service.
Object Type: Text
System: The Portal to Texas History
Texas Animal Health Commission Strategic Plan: Fiscal Years 2013-2017 (open access)

Texas Animal Health Commission Strategic Plan: Fiscal Years 2013-2017

Agency strategic plan for the Texas Animal Health Commission describing the organization's planned services, activities, and other goals during fiscal years 2013 through 2017.
Date: June 22, 2012
Creator: Texas Animal Health Commission
Object Type: Book
System: The Portal to Texas History
Texas Board of Chiropractic Examiners Strategic Plan: Fiscal Years 2013-2017 (open access)

Texas Board of Chiropractic Examiners Strategic Plan: Fiscal Years 2013-2017

Agency strategic plan for the Texas Board of Chiropractic Examiners describing the organization's planned services, activities, and other goals during fiscal years 2013 through 2017.
Date: June 22, 2012
Creator: Texas Board of Chiropractic Examiners
Object Type: Book
System: The Portal to Texas History
Texas Board of Nursing Strategic Plan: Fiscal Years 2013-2017 (open access)

Texas Board of Nursing Strategic Plan: Fiscal Years 2013-2017

Agency strategic plan for the Texas Board of Nursing describing the organization's planned services, activities, and other goals during fiscal years 2013 through 2017.
Date: June 22, 2012
Creator: Texas Board of Nursing
Object Type: Text
System: The Portal to Texas History
Texas Commission on the Arts Strategic Plan: Fiscal Years 2013-2017 (open access)

Texas Commission on the Arts Strategic Plan: Fiscal Years 2013-2017

Agency strategic plan for the Texas Commission on the Arts describing the organization's planned services, activities, and other goals during fiscal years 2013 through 2017.
Date: June 22, 2012
Creator: Texas Commission on the Arts
Object Type: Book
System: The Portal to Texas History