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Divisions, Areas, and Ensembles - Instrumental Studies - Strings - Harps - Music at Noon
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AN INTEGRATED BIOLOGICAL CONTROL SYSTEM AT HANFORD
In 1999 an integrated biological control system was instituted at the U.S. Department of Energy's Hanford Site. Successes and changes to the program needed to be communicated to a large and diverse mix of organizations and individuals. Efforts at communication are directed toward the following: Hanford Contractors (Liquid or Tank Waste, Solid Waste, Environmental Restoration, Science and Technology, Site Infrastructure), General Hanford Employees, and Hanford Advisory Board (Native American Tribes, Environmental Groups, Local Citizens, Washington State and Oregon State regulatory agencies). Communication was done through direct interface meetings, individual communication, where appropriate, and broadly sharing program reports. The objectives of the communication efforts was to have the program well coordinated with Hanford contractors, and to have the program understood well enough that all stakeholders would have confidence in the work performed by the program to reduce or elimated spread of radioactive contamination by biotic vectors. Communication of successes and changes to an integrated biological control system instituted in 1999 at the Department of Energy's Hanford Site have required regular interfaces with not only a diverse group of Hanford contractors (i.e., those responsible for liquid or tank waste, solid wastes, environmental restoration, science and technology, and site infrastructure), and general Hanford …
Date:
February 11, 2010
Creator:
AR, JOHNSON; JG, CAUDILL; RF, GIDDINGS; JM, RODRIGUEZ; RC, ROOS & JW, WILDE
Object Type:
Article
System:
The UNT Digital Library
Composition of the Earth's Inner Core from High-pressure Sound Velocity Measurements in Fe-Ni-Si alloys
None
Date:
March 11, 2010
Creator:
Antonangeli, D.; Siebert, J.; Badro, J.; Farber, D. L.; Fiquet, G.; Morard, G. et al.
Object Type:
Article
System:
The UNT Digital Library
Biocultural conservation in Cape Horn: the Magellanic woodpecker as a charismatic species
This book chapter discusses a research project to promote biocultural conservation in Cape Horn, Chile. In an effort to achieve the goal of transdisciplinary integration, the authors used the strategy of identifying a charismatic species, since doing so serves to motivate people towards biodiversity conservation, to communicate ecological concepts, and to integrate both the ecological and social dimensions of sustainability.
Date:
March 11, 2010
Creator:
Arango, Ximena; Rozzi, Ricardo, 1960-; Massardo, Francisca & Ibarra, J. Tomás
Object Type:
Book Chapter
System:
The UNT Digital Library
Nuclear Fallout Decision Tool for First Responders
None
Date:
August 11, 2010
Creator:
Archibald, E J & Buddemeier, B R
Object Type:
Report
System:
The UNT Digital Library
Low Prevalence of Chronic Beryllium Disease among Workers at a Nuclear Weapons Research and Development Facility
To study the prevalence of beryllium sensitization (BeS) and chronic beryllium disease (CBD) in a cohort of workers from a nuclear weapons research and development facility. We evaluated 50 workers with BeS with medical and occupational histories, physical examination, chest imaging with HRCT (N=49), and pulmonary function testing. Forty of these workers also underwent bronchoscopy for bronchoalveolar lavage (BAL) and transbronchial biopsies. The mean duration of employment at the facility was 18 yrs and the mean latency (from first possible exposure) to time of evaluation was 32 yrs. Five of the workers had CBD at the time of evaluation (based on histology or HRCT); three others had evidence of probable CBD. These workers with BeS, characterized by a long duration of potential Be exposure and a long latency, had a low prevalence of CBD.
Date:
January 11, 2010
Creator:
Arjomandi, M; Seward, J P; Gotway, M B; Nishimura, S; Fulton, G P; Thundiyil, J et al.
Object Type:
Article
System:
The UNT Digital Library
Search for B-meson decays to b1rho and b1K___
We present a search for decays of B mesons to final states with a b{sub 1} meson and a {rho} or K*(892) meson. The search is based on a data sample consisting of 465 million B{bar B} pairs collected by the BABAR detector at the SLAC National Accelerator Laboratory. We do not observe any statistically significant signal. The upper limits we set on the branching fractions range from 1.4 to 8.0 x 10{sup -6} at the 90% confidence level (C.L.), including systematic uncertainties.
Date:
June 11, 2010
Creator:
Aubert, Bernard; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E.; Prudent, X. et al.
Object Type:
Article
System:
The UNT Digital Library
Searches for Lepton Flavor Violation in the Decays tau+- ---> e+- gamma and tau+- ---> mu+- gamma
Searches for lepton-flavor-violating decays of a {tau} lepton to a lighter mass lepton and a photon have been performed with the entire dataset of (963 {+-} 7) x 10{sup 6} {tau} decays collected by the BABAR detector near the {Upsilon}(4S), {Upsilon}(3S) and {Upsilon}(2S) resonances. The searches yield no evidence of signals and they set upper limits on the branching fractions of {Beta}({tau}{sup {+-}} {yields} e{sup {+-}}{gamma}) < 3.3 x 10{sup -8} and {Beta}({tau}{sup {+-}} {yields} {mu}{sup {+-}}{gamma}) < 4.4 x 10{sup -8} at 90% confidence level.
Date:
June 11, 2010
Creator:
Aubert, Bernard; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prencipe, E.; Prudent, X. et al.
Object Type:
Article
System:
The UNT Digital Library
Methodology Development and Applications of Proliferation Resistance and Physical Protection Evaluation.
We present an overview of the program on the evaluation methodology for proliferation resistance and physical protection (PR&PP) of advanced nuclear energy systems (NESs) sponsored by the Generation IV International Forum (GIF). For a proposed NES design, the methodology defines a set of challenges, analyzes system response to these challenges, and assesses outcomes. The challenges to the NES are the threats posed by potential actors (proliferant States or sub-national adversaries). The characteristics of Generation IV systems, both technical and institutional, are used to evaluate the response of the system and to determine its resistance against proliferation threats and robustness against sabotage and terrorism threats. The outcomes of the system response are expressed in terms of a set of measures, which are the high-level PR&PP characteristics of the NES. The methodology is organized to allow evaluations to be performed at the earliest stages of system design and to become more detailed and more representative as the design progresses. It can thus be used to enable a program in safeguards by design or to enhance the conceptual design process of an NES with regard to intrinsic features for PR&PP.
Date:
April 11, 2010
Creator:
Bari, R. A.; Peterson, P. F.; Whitlock, J. J. & Therios, I. U.
Object Type:
Article
System:
The UNT Digital Library
CRS Issue Statement on Animal Welfare
This report discusses the questions whether additional measures are needed to protect the health and well-being of animals.
Date:
January 11, 2010
Creator:
Becker, Geoffrey S.
Object Type:
Report
System:
The UNT Digital Library
Chile Earthquake: U.S. and International Response
This report discusses the Earthquake in Chile, the current condition, the response from Chilean government, international humanitarian response, as well as the U.S. humanitarian response. The report provides background information on Chile and U.S. relations and policy issues.
Date:
March 11, 2010
Creator:
Beittel, June S.
Object Type:
Report
System:
The UNT Digital Library
FY2010 Supplemental for Wars, Disaster Assistance, Haiti Relief, and Other Programs
This report discusses the $64 billion in requested supplemental appropriations for FY2010, which includes $2.8 billion for Haiti earthquake-related reconstruction and foreign aid and $243 million for activities related to the Deepwater Horizon oil spill and more.
Date:
June 11, 2010
Creator:
Belasco, Amy; Else, Daniel H.; Lindsay, Bruce R.; Margesson, Rhoda; Nakamura, Kennon H. & Taft-Morales, Maureen
Object Type:
Report
System:
The UNT Digital Library
SLAC Next-Generation High Availability Power Supply
SLAC recently commissioned forty high availability (HA) magnet power supplies for Japan's ATF2 project. SLAC is now developing a next-generation N+1 modular power supply with even better availability and versatility. The goal is to have unipolar and bipolar output capability. It has novel topology and components to achieve very low output voltage to drive superconducting magnets. A redundant, embedded, digital controller in each module provides increased bandwidth for use in beam-based alignment, and orbit correction systems. The controllers have independent inputs for connection to two external control nodes. Under fault conditions, they sense failures and isolate the modules. Power supply speed mitigates the effects of fault transients and obviates subsequent magnet standardization. Hot swap capability promises higher availability and other exciting benefits for future, more complex, accelerators, and eventually the International Linear Collider project.
Date:
June 11, 2010
Creator:
Bellomo, P. & MacNair, D.
Object Type:
Article
System:
The UNT Digital Library
Verification of an IGBT Fusing Switch for Over-current Protection of the SNS HVCM
An IGBT based over-current protection system has been developed to detect faults and limit the damage caused by faults in high voltage converter modulators. During normal operation, an IGBT enables energy to be transferred from storage capacitors to a H-bridge. When a fault occurs, the over-current protection system detects the fault, limits the fault current and opens the IGBT to isolate the remaining stored energy from the fault. This paper presents an experimental verification of the over-current protection system under applicable conditions.
Date:
June 11, 2010
Creator:
Benwell, Andrew; Kemp, Mark; Burkhart, Craig & Nguyen, Minh
Object Type:
Article
System:
The UNT Digital Library
Intelligence Issues for Congress
This report discusses the efforts currently underway to improve coordination and encourage better analysis amongst the various agencies within the U.S. Intelligence Community, especially with regard to the ongoing and prominent issue of international terrorism. In particular, this report addresses the false intelligence regarding Iraqi weapons of mass destruction and the current efforts in Iraq and Iran in general.
Date:
June 11, 2010
Creator:
Best, Richard A., Jr.
Object Type:
Report
System:
The UNT Digital Library
Fighting Fire with Fire: Modeling the Datacenter-Scale Effects of Targeted Superlattice Thermal Management
Local thermal hot-spots in microprocessors lead to worst case provisioning of global cooling resources, especially in large-scale systems. However, efficiency of cooling solutions degrade non-linearly with supply temperature, resulting in high power consumption and cost in cooling - 50 {approx} 100% of IT power. Recent advances in active cooling techniques have shown on-chip thermoelectric coolers (TECs) to be very efficient at selectively eliminating small hot-spots, where applying current to a superlattice film deposited between silicon and the heat spreader results in a Peltier effect that spreads the heat and lowers the temperature of the hot-spot significantly to improve chip reliability. In this paper, we propose that hot-spot mitigation using thermoelectric coolers can be used as a power management mechanism to allow global coolers to be provisioned for a better worst case temperature leading to substantial savings in cooling power. In order to quantify the potential power savings from using TECs in data center servers, we present a detailed power model that integrates on-chip dynamic and leakage power sources, heat diffusion through the entire chip, TEC and global cooler efficiencies, and all their mutual interactions. Our multiscale analysis shows that, for a typical data center, TECs allow global coolers to operate …
Date:
November 11, 2010
Creator:
Biswas, S; Tiwari, M; Theogarajan, L; Sherwood, T P & Chong, F T
Object Type:
Article
System:
The UNT Digital Library
New Fixed-Target Experiments to Search for Dark Gauge Forces
Fixed-target experiments are ideally suited for discovering new MeV-GeV mass U(1) gauge bosons through their kinetic mixing with the photon. In this paper, we identify the production and decay properties of new light gauge bosons that dictate fixed-target search strategies. We summarize existing limits and suggest five new experimental approaches that we anticipate can cover most of the natural parameter space, using currently operating GeV-energy beams and well-established detection methods. Such experiments are particularly timely in light of recent terrestrial and astrophysical anomalies (PAMELA, FERMI, DAMA/LIBRA, etc.) consistent with dark matter charged under a new gauge force.
Date:
June 11, 2010
Creator:
Bjorken, James D.; Essig, Rouven; Schuster, Philip & Toro, Natalia
Object Type:
Article
System:
The UNT Digital Library
Single Particle Difraction at FLASH
Single-pulse coherent diffraction patterns have been collected from randomly injected single particles with a soft X-ray free-electron laser (FEL). The intense focused FEL pulse gives a high-resolution low-noise coherent diffraction pattern of the object before that object turns into a plasma and explodes. A diffraction pattern of a single particle will only be recorded when the particle arrival into the FEL interaction region coincides with FEL pulse arrival and detector integration. The properties of the experimental apparatus coinciding with these three events set the data acquisition rate. For our single particle FLASH diffraction imaging experiments: (1) an aerodynamic lens stack prepared a particle beam that consisted of particles moving at 150-200 m/s positioned randomly in space and time, (2) the 10 fs long FEL pulses were delivered at a fixed rate, and (3) the detector was set to integrate and readout once every two seconds. The effect of these experimental parameters on the rate of data acquisition using randomly injected particles will be discussed. Overall, the ultrashort FEL pulses do not set the limit of the data acquisition, more important is the effective interaction time of the particle crossing the FEL focus, the pulse sequence structure and the detector readout …
Date:
June 11, 2010
Creator:
Bogan, M.; Boutet, S.; Starodub, Dmitri; Decorwin-Martin, Philippe; /SLAC; Chapman, H. et al.
Object Type:
Article
System:
The UNT Digital Library
The Role of INSPIRE in HEP Data Preservation Efforts
INSPIRE is a new community resource for HEP literature and associated information. It is based on the combination of SPIRES content and features and the powerful Invenio software developed at CERN. The INSPIRE service will come online in fall of 2009, and be run by CERN, DESY, Fermilab and SLAC. Data preservation, to be successful, must not only preserve the data, but must also organize it and allow it to be found by those who would make use of it, and resources such as INSPIRE are ideally positioned and ready to provide this organization and context. In addition, INSPIRE will soon be ready to provide storage of smaller datasets, such as high-level analysis objects, as stand-alone objects placed in the repository or as objects associated with an analysis paper. This small project could pave the way towards the context and organization which is one piece of the infrastructure needed for all levels of data preservation.
Date:
June 11, 2010
Creator:
Brooks, Travis C.
Object Type:
Article
System:
The UNT Digital Library
["Triple Threat: Women in Rhythm" concert tape 2 of 2]
Video footage from The Black Academy of Arts and Letters recorded during "Triple Threat: Women in Rhythm" concert held on December 11th, 2010 at the Clarence Muse Café Theatre. The footage records the concert and shows the three featured female drummers playing various percussion instruments along with three accompanying musicians.
Date:
December 11, 2010
Creator:
Brown, Danielle "Pocket"; Jones, JaQuita "QUITA"; Lloyd, Tymeshia Q & King, Curtis
Object Type:
Video
System:
The UNT Digital Library
["Triple Threat: Women in Rhythm" concert tape 1 of 2]
Video footage from The Black Academy of Arts and Letters recorded during "Triple Threat: Women in Rhythm" concert held on December 11th, 2010 at the Clarence Muse Café Theatre. The footage records the concert and shows the three featured female drummers playing various percussion instruments along with three accompanying musicians.
Date:
December 11, 2010
Creator:
Brown, Danielle "Pocket"; King, Curtis; Jones, JaQuita "QUITA" & Lloyd, Tymeshia Q
Object Type:
Video
System:
The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 118, No. 29, Ed. 1 Thursday, February 11, 2010
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 11, 2010
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 118, No. 48, Ed. 1 Thursday, March 11, 2010
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 11, 2010
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 118, No. 90, Ed. 1 Tuesday, May 11, 2010
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 11, 2010
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 118, No. 113, Ed. 1 Friday, June 11, 2010
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 11, 2010
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History