501 Matching Results

Search Results

Results: 1 - 24 next
open access

AGR-1 Data Qualification Report

Description: ABSTRACT Projects for the very high temperature reactor (VHTR) Technology Development Office (TDO) program provide data in support of Nuclear Regulatory Commission licensing of the VHTR. Fuel and materials to be used in the reactor are tested and characterized to quantify performance in high temperature and high fluence environments. The VHTR program has established the NGNP Data Management and Analysis System (NDMAS) to ensure that VHTR data are (1) qualified for use, (2) stored in a readily a… more
Date: March 1, 2010
Creator: Abbott, Michael
Partner: UNT Libraries Government Documents Department
open access

Western Wind and Solar Integration Study: Hydropower Analysis

Description: The U.S. Department of Energy's (DOE) study of 20% Wind Energy by 2030 was conducted to consider the benefits, challenges, and costs associated with sourcing 20% of U.S. energy consumption from wind power by 2030. This study found that with proactive measures, no insurmountable barriers were identified to meet the 20% goal. Following this study, DOE and the National Renewable Energy Laboratory (NREL) conducted two more studies: the Eastern Wind Integration and Transmission Study (EWITS) coverin… more
Date: March 1, 2012
Creator: Acker, T. & Pete, C.
Partner: UNT Libraries Government Documents Department
open access

International shock-wave database project : report of the requirements workshop.

Description: We report on the requirements workshop for a new project, the International Shock-Wave database (ISWdb), which was held October 31 - November 2, 2011, at GSI, Darmstadt, Germany. Participants considered the idea of this database, its structure, technical requirements, content, and principles of operation. This report presents the consensus conclusions from the workshop, key discussion points, and the goals and plan for near-term and intermediate-term development of the ISWdb. The main points of… more
Date: March 1, 2012
Creator: Aidun, John Bahram (Institute of Problems of chemical Physics of Russian Academy of Sciences); Lomonosov, Igor V. (Institute of Problems of chemical Physics of Russian Academy of Sciences) & Levashov, Pavel R. (Joint Institute for High Temperatures of Russian Academy of Sciences)
Partner: UNT Libraries Government Documents Department
open access

Quality Parameters and Chemical Analysis for Biodiesel Produced in the United States in 2011

Description: Samples of biodiesel (B100) from producers and terminals in 2011were tested for critical properties: free and total glycerin, flash point, cloud point, oxidation stability, cold soak filterability, and metals. Failure rates for cold soak filterability and oxidation stability were below 5%. One sample failed flash point due to excess methanol. One sample failed oxidation stability and metal content. Overall, 95% of the samples from this survey met biodiesel quality specification ASTM D6751. In 2… more
Date: March 1, 2013
Creator: Alleman, T. L.; Fouts, L. & Chupka, G.
Partner: UNT Libraries Government Documents Department
open access

Effect Of Oxidation On Chromium Leaching And Redox Capacity Of Slag-Containing Waste Forms

Description: The rate of oxidation is important to the long-term performance of reducing salt waste forms because the solubility of some contaminants, e.g., technetium, is a function of oxidation state. TcO{sub 4}{sup −} in the salt solution is reduced to Tc(IV) and has been shown to react with ingredients in the waste form to precipitate low solubility sulfide and/or oxide phases [Shuh, et al., 1994, Shuh, et al., 2000, Shuh, et al., 2003]. Upon exposure to oxygen, the compounds containing Tc(IV) oxidize t… more
Date: March 1, 2013
Creator: Almond, P. M.; Stefanko, D. B. & Langton, C. A.
Partner: UNT Libraries Government Documents Department
open access

High Efficiency, Low Cost Solar Cells Manufactured Using 'Silicon Ink' on Thin Crystalline Silicon Wafers

Description: Reported are the development and demonstration of a 17% efficient 25mm x 25mm crystalline Silicon solar cell and a 16% efficient 125mm x 125mm crystalline Silicon solar cell, both produced by Ink-jet printing Silicon Ink on a thin crystalline Silicon wafer. To achieve these objectives, processing approaches were developed to print the Silicon Ink in a predetermined pattern to form a high efficiency selective emitter, remove the solvents in the Silicon Ink and fuse the deposited particle Silicon… more
Date: March 1, 2011
Creator: Antoniadis, H.
Partner: UNT Libraries Government Documents Department
open access

Thermoluminescent Dosimeter Use for Environmental Surveillance at the Hanford Site, 1971–2005

Description: This report describes the use of thermo luminescent dosimeters for environmental surveillance of external radiation on and around the Hanford Site for the period of 1970 to 2005. It addresses changes in the technology and associated quality control and assurance used in this work and summarizes the results of the 35 year period of external radiation surveillance. The appendices to this report provide trend plots for each location that comprised the shoreline, onsite, perimeter, and offsite samp… more
Date: March 1, 2010
Creator: Antonio, Ernest J.; Poston, Ted M. & Rathbone, Bruce A.
Partner: UNT Libraries Government Documents Department
open access

American Recovery and Reinvestment Act (ARRA) FEMP Technical Assistance Federal Aviation Administration – Project 209 Control Tower and Support Building Oakland, CA

Description: This report represents findings of a design review team that evaluated construction documents (at the 70% level) and operating specifications for a new control tower and support building that will be build at Oakland, California by the Federal Aviation Administration (FAA). The focus of the review was to identify measures that could be incorporated into the final design and operating specification that would result in additional energy savings for the FAA that would not have otherwise occurred.
Date: March 1, 2010
Creator: Arends, J. & Sandusky, William F.
Partner: UNT Libraries Government Documents Department
open access

Mountain Home Air Force Base, Idaho Geothermal Resource Assessment and Future Recommendations

Description: The U.S. Air Force is facing a number of challenges as it moves into the future, one of the biggest being how to provide safe and secure energy to support base operations. A team of scientists and engineers met at Mountain Home Air Force Base in early 2011 near Boise, Idaho, to discuss the possibility of exploring for geothermal resources under the base. The team identified that there was a reasonable potential for geothermal resources based on data from an existing well. In addition, a regiona… more
Date: March 1, 2013
Creator: Armstrong, Joseph C.; Breckenridge, Robert P.; Nielson, Dennis L.; Shervais, John W. & Wood, Thomas R.
Partner: UNT Libraries Government Documents Department
open access

Hybrid Cooling Systems for Low-Temperature Geothermal Power Production

Description: This paper describes the identification and evaluation of methods by which the net power output of an air-cooled geothermal power plant can be enhanced during hot ambient conditions with a minimal amount of water use.
Date: March 1, 2011
Creator: Ashwood, A. & Bharathan, D.
Partner: UNT Libraries Government Documents Department
open access

Made with Renewable Energy: How and Why Companies are Labeling Consumer Products

Description: Green marketing--a marketing strategy highlighting the environmental attributes of a product, often through the use of labels or logos--dates back to the 1970s. It did not proliferate until the 1990s, however, when extensive market research identified a rapidly growing group of consumers with a heightened concern for the environment. This group expressed not only a preference for green products but also a willingness to pay a premium for such products. The response was a surge in green marketin… more
Date: March 1, 2012
Creator: Baker Brannan, D.; Heeter, J. & Bird, L.
Partner: UNT Libraries Government Documents Department
open access

A deeper look at climate change and national security.

Description: Climate change is a long-term process that will trigger a range of multi-dimensional demographic, economic, geopolitical, and national security issues with many unknowns and significant uncertainties. At first glance, climate-change-related national security dimensions seem far removed from today's major national security threats. Yet climate change has already set in motion forces that will require U.S. attention and preparedness. The extent and uncertainty associated with these situations nec… more
Date: March 1, 2010
Creator: Baker, Arnold Barry; Backus, George A. & Romig, Alton Dale, Jr.
Partner: UNT Libraries Government Documents Department
open access

2011 Remediation Effectiveness Report for the U.S. Department of Energy Oak Ridge Reservation, Oak Ridge, Tennessee - Data and Evaluations

Description: Under the requirements of the Oak Ridge Reservation (ORR) Federal Facility Agreement (FFA) established between the U.S. Department of Energy (DOE), the U.S. Environmental Protection Agency, (EPA) and the Tennessee Department of Environment and Conservation (TDEC) in 1992, all environmental restoration activities on the ORR are performed in accordance with the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA). Since the 1990s, the environmental restoration ac… more
Date: March 1, 2011
Creator: Bechtel Jacobs
Partner: UNT Libraries Government Documents Department
open access

Peace Talks in Colombia

Description: This report provides background on Colombia's armed conflict and describes its key players. It briefly analyzes prior negotiations with the Revolutionary Armed Forces of Colombia (FARC) and the lessons learned from those efforts that apply to the current talks. It examines what has transpired in the talks that have now lasted for more than a year and a half, considers some of the constraints that could limit the success of the peace talks, and looks at the prospects for the current negotiations. more
Date: March 1, 2013
Creator: Beittel, June S.
Partner: UNT Libraries Government Documents Department
open access

A theory manual for multi-physics code coupling in LIME.

Description: The Lightweight Integrating Multi-physics Environment (LIME) is a software package for creating multi-physics simulation codes. Its primary application space is when computer codes are currently available to solve different parts of a multi-physics problem and now need to be coupled with other such codes. In this report we define a common domain language for discussing multi-physics coupling and describe the basic theory associated with multiphysics coupling algorithms that are to be supported … more
Date: March 1, 2011
Creator: Belcourt, Noel; Bartlett, Roscoe Ainsworth; Pawlowski, Roger Patrick; Schmidt, Rodney Cannon & Hooper, Russell Warren
Partner: UNT Libraries Government Documents Department
open access

Evaluation of Suitability of Selected Set of Coal Plant Sites for Repowering with Small Modular Reactors

Description: This report summarizes the approach that ORNL developed for screening a sample set of small coal stations for possible repowering with SMRs; the methodology employed, including spatial modeling; and initial results for these sample plants. The objective in conducting this type of siting evaluation is to demonstrate the capability to characterize specific sample coal plant sites to identify any particular issues associated with repowering existing coal stations with SMRs using OR-SAGE; it is not… more
Date: March 1, 2013
Creator: Belles, Randy; Copinger, Donald A; Mays, Gary T; Omitaomu, Olufemi A & Poore, Willis P., III
Partner: UNT Libraries Government Documents Department
open access

Combined CDF and D0 upper limits on MSSM Higgs boson production in tau-tau final states with up to 2.2 fb-1

Description: Combined results are presented on the search for a neutral Higgs boson in the di-tau final state using 1.8 fb{sup -1} and 2.2 fb{sup -1} of integrated luminosity collected at the CDF and D0 experiments respectively. Data were collected in p{bar p} collisions at a centre of mass energy of 1.96 TeV during RunII of the Tevatron. Limits are set on the cross section x branching ratio ranging from 13.6 pb to 0.653 pb for Higgs masses from 90 GeV to 200 GeV respectively. The results are then interpret… more
Date: March 1, 2010
Creator: Benjamin, Doug; Herndon, Matt; James, Eric; Junk, Tom; Krumnack, Nils; Yao, Weiming et al.
Partner: UNT Libraries Government Documents Department
open access

NNSA Nonproliferation Graduate Fellowship Program Annual Report June 2008 - May 2009

Description: In 2009, the Nonproliferation Graduate Fellowship Program (NGFP) completed its 16th successful year in support of the NNSA’s mission by developing future leaders in nonproliferation and promoting awareness of career opportunities. We provide this annual report to review program activities from June 2008 through May 2009 - the fellowship term for the Class of 2008. Contents include: Welcome Letter Introduction The NGFP Team Program Management Highlights Class of 2008 Incoming Fellows Orientation… more
Date: March 1, 2010
Creator: Berkman, Clarissa O. & Fankhauser, Jana G.
Partner: UNT Libraries Government Documents Department
open access

Evaluation of the Initial Isothermal Physics Measurements at the Fast Flux Test Facility, a Prototypic Liquid Metal Fast Breeder Reactor

Description: The Fast Flux Test Facility (FFTF) was a 400-MWt, sodium-cooled, low-pressure, high-temperature, fast-neutron flux, nuclear fission reactor plant designed for the irradiation testing of nuclear reactor fuels and materials for the development of liquid metal fast breeder reactors (LMFBRs). The FFTF was fueled with plutonium-uranium mixed oxide (MOX) and reflected by Inconel-600. Westinghouse Hanford Company operated the FFTF as part of the Hanford Engineering Development Laboratory (HEDL) for th… more
Date: March 1, 2010
Creator: Bess, John D.
Partner: UNT Libraries Government Documents Department
open access

HTR-PROTEUS PEBBLE BED EXPERIMENTAL PROGRAM CORES 5, 6, 7, & 8: COLUMNAR HEXAGONAL POINT-ON-POINT PACKING WITH A 1:2 MODERATOR-TO-FUEL PEBBLE RATIO

Description: PROTEUS is a zero-power research reactor based on a cylindrical graphite annulus with a central cylindrical cavity. The graphite annulus remains basically the same for all experimental programs, but the contents of the central cavity are changed according to the type of reactor being investigated. Through most of its service history, PROTEUS has represented light-water reactors, but from 1992 to 1996 PROTEUS was configured as a pebble-bed reactor (PBR) critical facility and designated as HTR-PR… more
Date: March 1, 2013
Creator: Bess, John D.
Partner: UNT Libraries Government Documents Department
open access

HTR-PROTEUS PEBBLE BED EXPERIMENTAL PROGRAM CORES 9 & 10: COLUMNAR HEXAGONAL POINT-ON-POINT PACKING WITH A 1:1 MODERATOR-TO-FUEL PEBBLE RATIO

Description: PROTEUS is a zero-power research reactor based on a cylindrical graphite annulus with a central cylindrical cavity. The graphite annulus remains basically the same for all experimental programs, but the contents of the central cavity are changed according to the type of reactor being investigated. Through most of its service history, PROTEUS has represented light-water reactors, but from 1992 to 1996 PROTEUS was configured as a pebble-bed reactor (PBR) critical facility and designated as HTR-PR… more
Date: March 1, 2013
Creator: Bess, John D.
Partner: UNT Libraries Government Documents Department
open access

HTR-PROTEUS PEBBLE BED EXPERIMENTAL PROGRAM CORES 9 & 10: COLUMNAR HEXAGONAL POINT-ON-POINT PACKING WITH A 1:1 MODERATOR-TO-FUEL PEBBLE RATIO

Description: PROTEUS is a zero-power research reactor based on a cylindrical graphite annulus with a central cylindrical cavity. The graphite annulus remains basically the same for all experimental programs, but the contents of the central cavity are changed according to the type of reactor being investigated. Through most of its service history, PROTEUS has represented light-water reactors, but from 1992 to 1996 PROTEUS was configured as a pebble-bed reactor (PBR) critical facility and designated as HTR-PR… more
Date: March 1, 2014
Creator: Bess, John D.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen