200% Efficient Singlet Fission Observed (Fact Sheet) (open access)

200% Efficient Singlet Fission Observed (Fact Sheet)

NREL scientists confirm the first molecular compound designed specifically to exhibit exciton multiplication.
Date: June 1, 2011
Creator: unknown
Object Type: Report
System: The UNT Digital Library
2010 Fuel Cell Technologies Market Report, June 2011 (open access)

2010 Fuel Cell Technologies Market Report, June 2011

This report summarizes 2010 data on fuel cells, including market penetration and industry trends. It also covers cost, price, and performance trends, along with policy and market drivers and the future outlook for fuel cells.
Date: June 1, 2011
Creator: unknown
Object Type: Report
System: The UNT Digital Library
2010 Idaho National Laboratory Water Use Report and Comprehensive Well Inventory (Revision 19) (open access)

2010 Idaho National Laboratory Water Use Report and Comprehensive Well Inventory (Revision 19)

This 2010 Idaho National Laboratory Water Use Report and Comprehensive Well Inventory (Revision 19) provides water use information (monthly annual average and total annual volume) for production and potable water wells at the Idaho National Laboratory for Calendar Year 2010. It also provides detailed information for new, modified, and abandoned (decommissioned) wells and holes. Five new wells were drilled and completed in the latter part of Calendar Years 2009 and 2010. Two wells were modified in Calendar Year 2010 and 66 wells and boreholes reported as abandoned (decommissioned). Detailed construction information for the new and modified wells, along with abandonment information for older wells, is provided. Location maps are provided if survey information was available. This report is being submitted in accordance with the Water Rights Agreement between the State of Idaho and the United States, for the United States Department of Energy (dated 1990) and the subsequent Partial Decree for Water Right 34-10901 issued June 20, 2003.
Date: June 1, 2011
Creator: Lewis, Mike
Object Type: Report
System: The UNT Digital Library
2010 LANL radionuclide air emissions report / (open access)

2010 LANL radionuclide air emissions report /

The emissions of radionuclides from Department of Energy Facilities such as Los Alamos National Laboratory (LANL) are regulated by the Amendments to the Clean Air Act of 1990, National Emissions Standards for Hazardous Air Pollutants (40 CFR 61 Subpart H). These regulations established an annual dose limit of 10 mrem to the maximally exposed member of the public attributable to emissions of radionuclides. This document describes the emissions of radionuclides from LANL and the dose calculations resulting from these emissions for calendar year 2010. This report meets the reporting requirements established in the regulations.
Date: June 1, 2011
Creator: Fuehne, David P.
Object Type: Report
System: The UNT Digital Library
2010 Neutron Review: ORNL Neutron Sciences Progress Report (open access)

2010 Neutron Review: ORNL Neutron Sciences Progress Report

During 2010, the Neutron Sciences Directorate focused on producing world-class science, while supporting the needs of the scientific community. As the instrument, sample environment, and data analysis tools at High Flux Isotope Reactor (HFIR ) and Spallation Neutron Source (SNS) have grown over the last year, so has promising neutron scattering research. This was an exciting year in science, technology, and operations. Some topics discussed are: (1) HFIR and SNS Experiments Take Gordon Battelle Awards for Scientific Discovery - Battelle Memorial Institute presented the inaugural Gordon Battelle Prizes for scientific discovery and technology impact in 2010. Battelle awards the prizes to recognize the most significant advancements at national laboratories that it manages or co-manages. (2) Discovery of Element 117 - As part of an international team of scientists from Russia and the United States, HFIR staff played a pivotal role in the discovery by generating the berkelium used to produce the new element. A total of six atoms of ''ununseptium'' were detected in a two-year campaign employing HFIR and the Radiochemical Engineering Development Center at Oak Ridge National Laboratory (ORNL) and the heavy-ion accelerator capabilities at the Joint Institute for Nuclear Research in Dubna, Russia. The discovery of the new …
Date: June 1, 2011
Creator: Bardoel, Agatha A; Counce, Deborah Melinda; Ekkebus, Allen E; Horak, Charlie M; Nagler, Stephen E & Kszos, Lynn A
Object Type: Report
System: The UNT Digital Library
2010 Vehicle Technologies Market Report (open access)

2010 Vehicle Technologies Market Report

In the past five years, vehicle technologies have advanced on a number of fronts: power-train systems have become more energy efficient, materials have become more lightweight, fuels are burned more cleanly, and new hybrid electric systems reduce the need for traditional petroleum-fueled propulsion. This report documents the trends in market drivers, new vehicles, and component suppliers. This report is supported by the U.S. Department of Energy s (DOE s) Vehicle Technologies Program, which develops energy-efficient and environmentally friendly transportation technologies that will reduce use of petroleum in the United States. The long-term aim is to develop "leap frog" technologies that will provide Americans with greater freedom of mobility and energy security, while lowering costs and reducing impacts on the environment.
Date: June 1, 2011
Creator: Ward, Jacob; Davis, Stacy Cagle & Diegel, Susan W
Object Type: Report
System: The UNT Digital Library
2010 Wind Technologies Market Report (open access)

2010 Wind Technologies Market Report

This report describes the status of the U.S. wind energy industry market in 2010; its trends, performance, market drivers and future outlook.
Date: June 1, 2011
Creator: Wiser, R. & Bolinger, M.
Object Type: Report
System: The UNT Digital Library
82nd Texas Legislature, Regular Session, House Bill 275, Chapter 208 (open access)

82nd Texas Legislature, Regular Session, House Bill 275, Chapter 208

Bill introduced by the Texas House of Representatives relating to making an appropriation of money from the economic stabilization fund for expenditure during the current state fiscal biennium.
Date: June 1, 2011
Creator: Texas. Legislature. House of Representatives.
Object Type: Legislative Document
System: The Portal to Texas History
Adaptive Systems Engineering: A Medical Paradigm for Practicing Systems Engineering (open access)

Adaptive Systems Engineering: A Medical Paradigm for Practicing Systems Engineering

From its inception in the defense and aerospace industries, SE has applied holistic, interdisciplinary tools and work-process to improve the design and management of 'large, complex engineering projects.' The traditional scope of engineering in general embraces the design, development, production, and operation of physical systems, and SE, as originally conceived, falls within that scope. While this 'traditional' view has expanded over the years to embrace wider, more holistic applications, much of the literature and training currently available is still directed almost entirely at addressing the large, complex, NASA and defense-sized systems wherein the 'ideal' practice of SE provides the cradle-to-grave foundation for system development and deployment. Under such scenarios, systems engineers are viewed as an integral part of the system and project life-cycle from conception to decommissioning. In far less 'ideal' applications, SE principles are equally applicable to a growing number of complex systems and projects that need to be 'rescued' from overwhelming challenges that threaten imminent failure. The medical profession provides a unique analogy for this latter concept and offers a useful paradigm for tailoring our 'practice' of SE to address the unexpected dynamics of applying SE in the real world. In short, we can be much more effective …
Date: June 1, 2011
Creator: Hamelin, R. Douglas; Klingler, Ron D. & Dieckmann, Christopher
Object Type: Article
System: The UNT Digital Library
Advanced Process Technology: Combi Materials Science and Atmospheric Processing (Fact Sheet) (open access)

Advanced Process Technology: Combi Materials Science and Atmospheric Processing (Fact Sheet)

Capabilities fact sheet for the National Center for Photovoltaics: Process Technology and Advanced Concepts -- High-Throughput Combi Material Science and Atmospheric Processing that includes scope, core competencies and capabilities, and contact/web information.
Date: June 1, 2011
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Advanced simulation capability for environmental management (ASCEM): An overview of initial results (open access)

Advanced simulation capability for environmental management (ASCEM): An overview of initial results

None
Date: June 1, 2011
Creator: Williamson, M.; Meza, J.; Moulton, D.; Gorton, I.; Feshley, M.; Dixon, P. et al.
Object Type: Article
System: The UNT Digital Library
Afghanistan: Politics, Elections, and Government Performance (open access)

Afghanistan: Politics, Elections, and Government Performance

This report discusses the current political state of Afghanistan, as well as the Afghan government. This report also discusses Afghanistan's relationship with the United States, particularly U.S. efforts to urge President Hamid Karzai, to address corruption within the Afghan government. The report also includes discussion of election fraud and corruption in Afghanistan.
Date: June 1, 2011
Creator: Katzman, Kenneth
Object Type: Report
System: The UNT Digital Library
Analysis of Minimum Efficiency Performance Standards for Residential General Service Lighting in Chile (open access)

Analysis of Minimum Efficiency Performance Standards for Residential General Service Lighting in Chile

Minimum Efficiency Performance Standards (MEPS) have been chosen as part of Chile's national energy efficiency action plan. As a first MEPS, the Ministry of Energy has decided to focus on a regulation for lighting that would ban the sale of inefficient bulbs, effectively phasing out the use of incandescent lamps. Following major economies such as the US (EISA, 2007) , the EU (Ecodesign, 2009) and Australia (AS/NZS, 2008) who planned a phase out based on minimum efficacy requirements, the Ministry of Energy has undertaken the impact analysis of a MEPS on the residential lighting sector. Fundacion Chile (FC) and Lawrence Berkeley National Laboratory (LBNL) collaborated with the Ministry of Energy and the National Energy Efficiency Program (Programa Pais de Eficiencia Energetica, or PPEE) in order to produce a techno-economic analysis of this future policy measure. LBNL has developed for CLASP (CLASP, 2007) a spreadsheet tool called the Policy Analysis Modeling System (PAMS) that allows for evaluation of costs and benefits at the consumer level but also a wide range of impacts at the national level, such as energy savings, net present value of savings, greenhouse gas (CO2) emission reductions and avoided capacity generation due to a specific policy. Because historically …
Date: June 1, 2011
Creator: Letschert, Virginie E.; McNeil, Michael A.; Leiva Ibanez, Francisco Humberto; Ruiz, Ana Maria; Pavon, Mariana & Hall, Stephen
Object Type: Article
System: The UNT Digital Library
ANALYTICAL NEUTRONIC STUDIES CORRELATING FAST NEUTRON FLUENCE TO MATERIAL DAMAGE IN CARBON, SILICON, AND SILICON CARBIDE (open access)

ANALYTICAL NEUTRONIC STUDIES CORRELATING FAST NEUTRON FLUENCE TO MATERIAL DAMAGE IN CARBON, SILICON, AND SILICON CARBIDE

This study evaluates how fast neutron fluence >0.1 MeV correlates to material damage (i.e., the total fluence spectrum folded with the respective material’s displacements-per- atom [dpa] damage response function) for the specific material fluence spectra encountered in Next Generation Nuclear Plant (NGNP) service and the irradiation tests conducted in material test reactors (MTRs) for the fuel materials addressed in the white paper. It also reports how the evaluated correlations of >0.1 MeV fluence to material damage vary between the different spectral conditions encountered in material service versus testing.
Date: June 1, 2011
Creator: Sterbentz, Jim
Object Type: Report
System: The UNT Digital Library
Analytics for Cyber Network Defense. (open access)

Analytics for Cyber Network Defense.

This report provides a brief survey of analytics tools considered relevant to cyber network defense (CND). Ideas and tools come from fields such as statistics, data mining, and knowledge discovery. Some analytics are considered standard mathematical or statistical techniques, while others reflect current research directions. In all cases the report attempts to explain the relevance to CND with brief examples.
Date: June 1, 2011
Creator: Plantenga, Todd D. & Kolda, Tamara Gibson
Object Type: Report
System: The UNT Digital Library
Annomolous Elevated Radiocarbon Measurements of PM2.5 (open access)

Annomolous Elevated Radiocarbon Measurements of PM2.5

None
Date: June 1, 2011
Creator: Buchholz, B. A.; Fallon, S.; Zermeno, P.; Bench, G. & Schichtel, B. A.
Object Type: Article
System: The UNT Digital Library
Antibiotic Resistance: Data Gaps Will Remain Despite HHS Taking Steps to Improve Monitoring (open access)

Antibiotic Resistance: Data Gaps Will Remain Despite HHS Taking Steps to Improve Monitoring

A letter report issued by the Government Accountability Office with an abstract that begins "Infections that were once treatable have become more difficult to treat because of antibiotic resistance. Resistance occurs naturally but is accelerated by inappropriate antibiotic use in people, among other things. Questions have been raised about whether agencies such as the Department of Health and Human Services (HHS) have adequately assessed the effects of antibiotic use and disposal on resistance in humans. GAO was asked to (1) describe federal efforts to quantify the amount of antibiotics produced, (2) evaluate HHS's monitoring of antibiotic use and efforts to promote appropriate use, (3) examine HHS's monitoring of antibiotic-resistant infections, and (4) describe federal efforts to monitor antibiotic disposal and antibiotics in the environment, and describe research on antibiotics in the development of resistance in the environment. GAO reviewed documents and interviewed officials, conducted a literature review, and analyzed antibiotic sales data."
Date: June 1, 2011
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Application of the INSTANT-HPS PN Transport Code to the C5G7 Benchmark Problem (open access)

Application of the INSTANT-HPS PN Transport Code to the C5G7 Benchmark Problem

INSTANT is the INL's next generation neutron transport solver to support high-fidelity multi-physics reactor simulation INSTANT is in continuous development to extend its capability Code is designed to take full advantage of middle to large cluster (10-1000 processors) Code is designed to focus on method adaptation while also mesh adaptation will be possible. It utilizes the most modern computing techniques to generate a neutronics tool of full-core transport calculations for reactor analysis and design. It can perform calculations on unstructured 2D/3D triangular, hexagonal and Cartesian geometries. Calculations can be easily extended to more geometries because of the independent mesh framework coded with the model Fortran. This code has a multigroup solver with thermal rebalance and Chebyshev acceleration. It employs second-order PN and Hybrid Finite Element method (PNHFEM) discretization scheme. Three different in-group solvers - preconditioned Conjugate Gradient (CG) method, preconditioned Generalized Minimal Residual Method (GMRES) and Red-Black iteration - have been implemented and parallelized with the spatial domain decomposition in the code. The input is managed with extensible markup language (XML) format. 3D variables including the flux distributions are outputted into VTK files, which can be visualized by tools such as VisIt and ParaView. An extension of the code named …
Date: June 1, 2011
Creator: Wang, Y.; Zhang, H.; Szilard, R. H. & Martineau, R. C.
Object Type: Article
System: The UNT Digital Library
Assessing and Reducing Plug and Process Loads in Office Buildings (Brochure) (open access)

Assessing and Reducing Plug and Process Loads in Office Buildings (Brochure)

Plug and process loads (PPLs) in commercial buildings account for almost 5% of U.S. primary energy consumption. Minimizing these loads is a primary challenge in the design and operation of an energy-efficient building. PPLs are not related to general lighting, heating, ventilation, cooling, and water heating, and typically do not provide comfort to the occupants. They use an increasingly large fraction of the building energy use pie because the number and variety of electrical devices have increased along with building system efficiency. Reducing PPLs is difficult because energy efficiency opportunities and the equipment needed to address PPL energy use in office spaces are poorly understood.
Date: June 1, 2011
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Assessing and Reducing Plug and Process Loads in Retail Buildings (Brochure) (open access)

Assessing and Reducing Plug and Process Loads in Retail Buildings (Brochure)

Plug and process loads (PPLs) in commercial buildings account for almost 5% of U.S. primary energy consumption. Minimizing these loads is a primary challenge in the design and operation of an energy-efficient building. PPLs are not related to general lighting, heating, ventilation, cooling, and water heating, and typically do not provide comfort to the occupants. They use an increasingly large fraction of the building energy use pie because the number and variety of electrical devices have increased along with building system efficiency. Reducing PPLs is difficult because energy efficiency opportunities and the equipment needed to address PPL energy use in retail spaces are poorly understood.
Date: June 1, 2011
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Assessment of existing Sierra/Fuego capabilities related to grid-to-rod-fretting (GTRF). (open access)

Assessment of existing Sierra/Fuego capabilities related to grid-to-rod-fretting (GTRF).

The following report presents an assessment of existing capabilities in Sierra/Fuego applied to modeling several aspects of grid-to-rod-fretting (GTRF) including: fluid dynamics, heat transfer, and fluid-structure interaction. We compare the results of a number of Fuego simulations with relevant sources in the literature to evaluate the accuracy, efficiency, and robustness of using Fuego to model the aforementioned aspects. Comparisons between flow domains that include the full fuel rod length vs. a subsection of the domain near the spacer show that tremendous efficiency gains can be obtained by truncating the domain without loss of accuracy. Thermal analysis reveals the extent to which heat transfer from the fuel rods to the coolant is improved by the swirling flow created by the mixing vanes. Lastly, coupled fluid-structure interaction analysis shows that the vibrational modes of the fuel rods filter out high frequency turbulent pressure fluctuations. In general, these results allude to interesting phenomena for which further investigation could be quite fruitful.
Date: June 1, 2011
Creator: Turner, Daniel Zack & Rodriguez, Salvador B.
Object Type: Report
System: The UNT Digital Library
Assessment of Tools and Data for System-Level Dynamic Analyses (open access)

Assessment of Tools and Data for System-Level Dynamic Analyses

The only fuel cycle for which dynamic analyses and assessments are not needed is the null fuel cycle - no nuclear power. For every other concept, dynamic analyses are needed and can influence relative desirability of options. Dynamic analyses show how a fuel cycle might work during transitions from today's partial fuel cycle to something more complete, impact of technology deployments, location of choke points, the key time lags, when benefits can manifest, and how well parts of fuel cycles work together. This report summarizes the readiness of existing Fuel Cycle Technology (FCT) tools and data for conducting dynamic analyses on the range of options. VISION is the primary dynamic analysis tool. Not only does it model mass flows, as do other dynamic system analysis models, but it allows users to explore various potential constraints. The only fuel cycle for which constraints are not important are those in concept advocates PowerPoint presentations; in contrast, comparative analyses of fuel cycles must address what constraints exist and how they could impact performance. The most immediate tool need is extending VISION to the thorium/U233 fuel cycle. Depending on further clarification of waste management strategies in general and for specific fuel cycle candidates, waste …
Date: June 1, 2011
Creator: Piet, Steven J. & Soelberg, Nick R.
Object Type: Report
System: The UNT Digital Library
Baker-Barry Tunnel Lighting: Evaluation of a Potential GATEWAY Demonstrations Project (open access)

Baker-Barry Tunnel Lighting: Evaluation of a Potential GATEWAY Demonstrations Project

The U.S. Department of Energy (DOE) is evaluating the Baker-Barry Tunnel as a potential GATEWAY Demonstrations project for deployment of solid-state lighting (SSL) technology. The National Park Service (NPS) views this project as a possible proving ground and template for implementation of light-emitting diode (LED) luminaires in other NPS tunnels, thereby expanding the estimated 40% energy savings from 132 MWh/yr for this tunnel to a much larger figure national
Date: June 1, 2011
Creator: Tuenge, Jason R.
Object Type: Report
System: The UNT Digital Library
Benefits and Costs of Improved IEQ in U.S. Offices (open access)

Benefits and Costs of Improved IEQ in U.S. Offices

This paper estimates some of the benefits and costs of implementing scenarios that improve indoor environmental quality (IEQ) in the stock of U.S. office buildings. The scenarios include increasing ventilation rates when they are below 10 or 15 L/s per person, adding outdoor-air economizers and controls when absent, eliminating winter indoor temperatures greater than 23 oC, and reducing dampness and mold problems. The estimated benefits of the scenarios analyzed are substantial in magnitude, including increased work performance, reduced sick building syndrome symptoms, reduced absence, and improved thermal comfort for millions of office workers. The combined potential annual economic benefit of a set ofnon-overlapping scenarios is approximately $20 billion. While the quantitative estimates have a high uncertainty, the opportunity for substantial benefits is clear. Some IEQ improvement measures will save energy while improving health or productivity, and implementing these measures should be the highest priority.
Date: June 1, 2011
Creator: Fisk, William J.; Black, Douglas & Brunner, Gregory
Object Type: Article
System: The UNT Digital Library