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The Debt Limit: History and Recent Increases

Description: This report discusses how the total debt of the federal government can increase, an historical overview of debt limits, and how the current economic slowdown has led to higher deficits and thereby a series of debt limit increases, as well as legislation related to these increases.
Date: July 1, 2011
Creator: Austin, D. Andrew & Levit, Mindy R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Intent, Capability and Opportunity: A Holistic Approach to Addressing Proliferation as a Risk Management Issue

Description: Currently, proliferation risk assessment models are designed to evaluate only a portion of the overall risk, focusing exclusively on either technological or social factors to determine the extent of a threat. Many of these models are intended to act as a means of predicting proliferation potential rather than assessing the system as a whole, ignoring the ability to enhance mitigating factors and manage, rather just establish the presence of, the threat. While the information garnered through th… more
Date: July 1, 2011
Creator: Rynes, Amanda & Bjornard, Trond
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Search for $B_s \to \mu^+\mu^-$ and $B_d \to \mu^+\mu^-$ Decays with CDF II

Description: A search has been performed for B{sub s}{sup 0} {yields} {mu}{sup +}{mu}{sup -} and B{sup 0} {yields} {mu}{sup +}{mu}{sup -} decays using 7 fb{sup -1} of integrated luminosity collected by the CDF II detector at the Fermilab Tevatron collider. The observed number of B{sup 0} candidates is consistent with background-only expectations and yields an upper limit on the branching fraction of {Beta}(B{sup 0} {yields} {mu}{sup +}{mu}{sup -}) < 6.0 x 10{sup -9} at 95% confidence level. We observe an… more
Date: July 1, 2011
Creator: Aaltonen, T.; Phys., /Helsinki Inst. of; Alvarez Gonzalez, B.; Phys., /Oviedo U. /Cantabria Inst. of; Amerio, S.; /INFN, Padua et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Utility-scale grid-tied PV inverter reliability workshop summary report.

Description: A key to the long-term success of the photovoltaic (PV) industry is confidence in the reliability of PV systems. Inverters are the most commonly noted cause of PV system incidents triggered in the field. While not all of these incidents are reliability-related or even necessarily failures, they still result in a loss of generated power. With support from the U.S. Department of Energy's Solar Energy Technologies Program, Sandia National Laboratories organized a Utility-Scale Grid-Tied Inverter R… more
Date: July 1, 2011
Creator: Granata, Jennifer E.; Quintana, Michael A.; Tasca, Coryne Adelle (SRA International, Inc., Fairfax, VA) & Atcitty, Stanley
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Integrating Renewable Energy Requirements Into Building Energy Codes

Description: This report evaluates how and when to best integrate renewable energy requirements into building energy codes. The basic goals were to: (1) provide a rough guide of where we’re going and how to get there; (2) identify key issues that need to be considered, including a discussion of various options with pros and cons, to help inform code deliberations; and (3) to help foster alignment among energy code-development organizations. The authors researched current approaches nationally and internatio… more
Date: July 1, 2011
Creator: Kaufmann, John R.; Hand, James R. & Halverson, Mark A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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NV Energy Solar Integration Study: Cycling and Movements of Conventional Generators for Balancing Services

Description: With an increasing penetration level of solar power in the southern Nevada system, the impact of solar on system operations needs to be carefully studied from various perspectives. Qualitatively, it is expected that the balancing requirements to compensate for solar power variability will be larger in magnitude; meanwhile, generators providing load following and regulation services will be moved up or down more frequently. One of the most important tasks is to quantitatively evaluate the cyclin… more
Date: July 1, 2011
Creator: Diao, Ruisheng; Lu, Shuai; Etingov, Pavel V.; Ma, Jian; Makarov, Yuri V. & Guo, Xinxin
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Automated Demand Response Technology Demonstration Project for Small and Medium Commercial Buildings

Description: Small and medium commercial customers in California make up about 20-25% of electric peak load in California. With the roll out of smart meters to this customer group, which enable granular measurement of electricity consumption, the investor-owned utilities will offer dynamic prices as default tariffs by the end of 2011. Pacific Gas and Electric Company, which successfully deployed Automated Demand Response (AutoDR) Programs to its large commercial and industrial customers, started investigati… more
Date: July 1, 2011
Creator: Page, Janie; Kiliccote, Sila; Dudley, Junqiao Han; Piette, Mary Ann; Chiu, Albert K.; Kellow, Bashar et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Qualification of the Second Batch Production 9-Cell Cavities Manufactured by AES and Validation of the First US Industrial Cavity Vendor for ILC

Description: One of the major goals of ILC SRF cavity R&D is to develop industrial capabilities of cavity manufacture and processing in all three regions. In the past several years, Jefferson Lab, in collaboration with Fermi National Accelerator Laboratory, has processed and tested all the 9-cell cavities of the first batch (4 cavities) and second batch (6 cavities) production cavities manufactured by Advanced Energy Systems Inc. (AES). Over the course, close information feedback was maintained, resulting i… more
Date: July 1, 2011
Creator: Geng, R. L.; Golden, B. A.; Kushnick, P.; Overton, R. B.; Calderaro, M.; Peterson, E. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Physics validation studies for muon collider detector background simulations

Description: Within the broad discipline of physics, the study of the fundamental forces of nature and the most basic constituents of the universe belongs to the field of particle physics. While frequently referred to as 'high-energy physics,' or by the acronym 'HEP,' particle physics is not driven just by the quest for ever-greater energies in particle accelerators. Rather, particle physics is seen as having three distinct areas of focus: the cosmic, intensity, and energy frontiers. These three frontiers a… more
Date: July 1, 2011
Creator: Morris, Aaron Owen
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Second Look at Neutron Resonance Transmission Analysis as a Spent Fuel NDA Technique

Description: Many different nondestructive analysis techniques are currently being investigated as a part of the United States Department of Energy's Next Generation Safeguards Initiative (NGSI) seeking methods to quantify plutonium in spent fuel. Neutron Resonance Transmission Analysis (NRTA) is one of these techniques. Having first been explored in the mid-1970s for the analysis of individual spent-fuel pins a second look, using advanced simulation and modeling methods, is now underway to investigate the … more
Date: July 1, 2011
Creator: Sterbentz, James W. & Chichester, David L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Transportation Energy Data Book: Edition 30

Description: The Transportation Energy Data Book: Edition 30 is a statistical compendium prepared and published by Oak Ridge National Laboratory (ORNL) under contract with the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Program. Designed for use as a desk-top reference, the Data Book represents an assembly and display of statistics and information that characterize transportation activity, and presents data on other factors that influence transportation … more
Date: July 1, 2011
Creator: Davis, Stacy Cagle; Diegel, Susan W & Boundy, Robert Gary
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Preparation and Testing of the SRF Cavities for the CEBAF 12 GeV Upgrade

Description: Eighty new 7-cell, low-loss cell-shaped cavities are required for the CEBAF 12 GeV Upgrade project. In addition to ten pre-production units fabricated at JLab, the full set of commercially-produced cavities have been delivered. An efficient processing routine, which includes a controlled 30 micron electropolish, has been established to transform these cavities into qualified 8-cavity strings. This work began in 2010 and will run through the end of 2011. The realized cavity performance consisten… more
Date: July 1, 2011
Creator: Reilly, A. V.; Bass, T.; Burrill, A.; Davis, G. K.; Marhauser, F.; Reece, C. E. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Top Quark Mass Measurements at the Tevatron

Description: We report the latest results on the top-quark mass and on the top-antitop mass difference from the CDF and D0 collaborations using data collected at the Fermilab Tevatron p{bar p} collider at {radical}s = 1.96 TeV. We discuss general issues in top-quark mass measurements and present new results from direct measurements and from top-pair production cross-section. We also report new results on the top-antitop mass difference.
Date: July 1, 2011
Creator: Ye, Zhenyu
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Overview of Scientific Issues Involved in Selection of Polymers for PV Applications: Preprint

Description: Encapsulant materials used in photovoltaic (PV) modules serve multiple purposes. They physically hold components in place, provide electrical insulation, reduce moisture ingress, optically couple superstrate materials (e.g., glass) to PV cells, protect components from mechanical stress by mechanically de-coupling components via strain relief, and protect materials from corrosion. To do this, encapsulants must adhere well to all surfaces, remain compliant, and transmit light after exposure to te… more
Date: July 1, 2011
Creator: Kempe, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Observation of the $\Xi_b^0$ Baryon

Description: The observation of the bottom, strange baryon {Xi}{sup 0}{sub b} through the decay chain {Xi}{sup 0}{sub b} {yields} {Xi}{sup +}{sub c} {pi}{sup -}, where {Xi}{sup +}{sub c} {yields} {Xi}{sup -} {pi}{sup +} {pi}{sup +}, {Xi}{sup -} {yields} {Lambda} {yields} p {pi}{sup -}, is reported using data corresponding to an integrated luminosity of 4.2 ft{sup -1} from p{anti p} collisions at {radical}{ovr s} = 1.96 TeV recorded with the Collider Detector at Fermilab. A signal of 25.3{sup +5.6}{sub -5.4}… more
Date: July 1, 2011
Creator: Aaltonen, T.; Phys., /Helsinki Inst. of; Alvarez Gonzalez, B.; Phys., /Oviedo U. /Cantabria Inst. of; Amerio, S.; /INFN, Padua et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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A Hierarchical Upscaling Method for Predicting Strength of Materials under Thermal, Radiation and Mechanical loading - Irradiation Strengthening Mechanisms in Stainless Steels

Description: Stainless steels based on Fe-Cr-Ni alloys are the most popular structural materials used in reactors. High energy particle irradiation of in this kind of polycrystalline structural materials usually produces irradiation hardening and embrittlement. The development of predictive capability for the influence of irradiation on mechanical behavior is very important in materials design for next-generation reactors. Irradiation hardening is related to structural information crossing different length … more
Date: July 1, 2011
Creator: Li, Dongsheng; Zbib, Hussein M.; Garmestani, Hamid; Sun, Xin & Khaleel, Mohammad A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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INTEGRATION OF RELIABILITY WITH MECHANISTIC THERMALHYDRAULICS: REPORT ON APPROACH AND TEST PROBLEM RESULTS

Description: The Risk-Informed Safety Margin Characterization (RISMC) pathway of the Light Water Reactor Sustainability Program is developing simulation-based methods and tools for analyzing safety margin from a modern perspective. [1] There are multiple definitions of 'margin.' One class of definitions defines margin in terms of the distance between a point estimate of a given performance parameter (such as peak clad temperature), and a point-value acceptance criterion defined for that parameter (such as 2… more
Date: July 1, 2011
Creator: Schroeder, J. S. & Youngblood, R. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Ecological Monitoring and Compliance Program 2010 Report

Description: The Ecological Monitoring and Compliance (EMAC) Program, funded through the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office (NNSA/NSO), monitors the ecosystem of the Nevada National Security Site (NNSS) and ensures compliance with laws and regulations pertaining to NNSS biota. This report summarizes the program’s activities conducted by National Security Technologies, LLC (NSTec), during calendar year 2010. Program activities included (a) biological survey… more
Date: July 1, 2011
Creator: Hansen, D.J.; Anderson, D.C.; Hall, D.B.; Greger, P.D. & Ostler, W.K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Natural Gas Variability In California: Environmental Impacts And Device Performance Combustion Modeling of Pollutant Emissions From a Residential Cooking Range

Description: As part of a larger study of liquefied natural gas impacts on device performance and pollutant emissions for existing equipment in California, this report describes a cmoputer modeling study of a partially premixed flame issueing from a single cooktop burner port. The model consisted of a reactive computational fluid dynamics three-dimensional spatial grid and a 71-species chemical mechanism with propane combustion capability. Simulations were conducted with a simplified fuel mixture containing… more
Date: July 1, 2011
Creator: Tonse, S. R. & Singer, B. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Final-state interactions in semi-inclusive deep inelastic scattering off the Deuteron

Description: Semi-inclusive deep inelastic scattering off the Deuteron with production of a slow nucleon in recoil kinematics is studied in the virtual nucleon approximation, in which the final state interaction (FSI) is calculated within general eikonal approximation. The cross section is derived in a factorized approach, with a factor describing the virtual photon interaction with the off-shell nucleon and a distorted spectral function accounting for the final-state interactions. One of the main goals of … more
Date: July 1, 2011
Creator: Wim Cosyn, Misak Sargsian
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Topology for statistical modeling of petascale data.

Description: This document presents current technical progress and dissemination of results for the Mathematics for Analysis of Petascale Data (MAPD) project titled 'Topology for Statistical Modeling of Petascale Data', funded by the Office of Science Advanced Scientific Computing Research (ASCR) Applied Math program. Many commonly used algorithms for mathematical analysis do not scale well enough to accommodate the size or complexity of petascale data produced by computational simulations. The primary goal… more
Date: July 1, 2011
Creator: Pascucci, Valerio (University of Utah, Salt Lake City, UT); Mascarenhas, Ajith Arthur; Rusek, Korben (Texas A&M University, College Station, TX); Bennett, Janine Camille; Levine, Joshua (University of Utah, Salt Lake City, UT); Pebay, Philippe Pierre et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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