D = 5 Maximally Supersymmetric Yang-Mills Theory Diverges at Six Loops (open access)

D = 5 Maximally Supersymmetric Yang-Mills Theory Diverges at Six Loops

None
Date: October 31, 2012
Creator: Bern, Zvi; Carrasco, John Joseph; Dixon, Lance J.; Douglas, Michael R.; von Hippel, Matt & Johansson, Henrik
Object Type: Article
System: The UNT Digital Library
Advanced Palladium Membrane Scale-up for Hydrogen Separation (open access)

Advanced Palladium Membrane Scale-up for Hydrogen Separation

The main objective of this project was to construct, test, and demonstrate a Pd-Cu metallic tubular membrane micro-channel separator capable of producing 2 lb day{sup -1} H{sub 2} at ≥95% recovery when operating downstream of an actual coal gasifier. A key milestone for the project was to complete a pilot-scale gasifier test by 1 September 2011 and demonstrate the separation of 2 lb day{sup -1} H{sub 2} to verify progress toward the DOE’s goals prior to down-selection for larger-scale (≈100 lb day{sup -1}) hydrogen separator development. Three different pilot-scale (≈1.5 ft{sup 2}) separators were evaluated downstream of coal gasifiers during four different tests and the key project milestone was achieved in August 2011, ahead of schedule. During three of those tests, all of the separators demonstrated or exceeded the targeted separation rate of 2 lb day{sup -1} H{sub 2}. The separator design was proved to be leak tight and durable in the presence of gasifier exhaust contaminants at temperatures and pressures up to 500 °C and 500 psia. The contaminants in the coal gasifier syngas for the most part had negligible impact on separator performance, with H{sub 2} partial pressure being the greatest determinant of membrane performance. Carbon monoxide and …
Date: October 31, 2012
Creator: Emerson, Sean; Magdefrau, Neal; She, Ying & Thibaud-Erkey, Catherine
Object Type: Report
System: The UNT Digital Library
Brief 70 Nuclear Engineering Enrollments and Degrees, 2011 Summary Information (open access)

Brief 70 Nuclear Engineering Enrollments and Degrees, 2011 Summary Information

The survey includes degrees granted between September 1, 2010 and August 31, 2011. Enrollment information refers to the fall term 2011. The enrollment and degree data include students majoring in nuclear engineering or in an option program equivalent to a major. Thirty-two academic programs reported having nuclear engineering programs during 2011, and data was received from all thirty-two programs. The data for two nuclear engineering programs include enrollments and degrees in health physics options that are also reported in the health physics enrollments and degrees data.
Date: October 31, 2012
Creator: Johnson, Dr. Don
Object Type: Report
System: The UNT Digital Library
Coast Guard Cutter Procurement: Background and Issues for Congress (open access)

Coast Guard Cutter Procurement: Background and Issues for Congress

Report that provides background information and potential oversight issues for Congress on the Coast Guard's programs for procuring eight National Security Cutters (NSCs), 25 Offshore Patrol Cutters (OPCs), and 58 Fast Response Cutters (FRCs).
Date: October 31, 2012
Creator: O'Rourke, Ronald
Object Type: Report
System: The UNT Digital Library
Combating Nuclear Smuggling: Megaports Initiative Faces Funding and Sustainability Challenges (open access)

Combating Nuclear Smuggling: Megaports Initiative Faces Funding and Sustainability Challenges

A letter report issued by the Government Accountability Office with an abstract that begins "As of August 2012, the National Nuclear Security Administration (NNSA) had completed 42 of 100 planned Megaports projects in 31 countries and, as of December 2011, NNSA had spent about $850 million on the Megaports Initiative (Initiative). NNSA’s Initiative has equipped these seaports with radiation detection equipment, established training programs for foreign personnel, and created a sustainability program to help countries operate and maintain the equipment. However, the administration’s fiscal year 2013 budget proposal would reduce the Initiative’s budget by about 85 percent, and NNSA plans to shift the Initiative’s focus from establishing new Megaports to sustaining existing ones. As a result, NNSA has suspended ongoing negotiations and cancelled planned deployments of equipment in five countries."
Date: October 31, 2012
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Crude Glycerol as Cost-Effective Fuel for Combined Heat and Power to Replace Fossil Fuels, Final Technical Report (open access)

Crude Glycerol as Cost-Effective Fuel for Combined Heat and Power to Replace Fossil Fuels, Final Technical Report

The primary objectives of this work can be summed into two major categories. Firstly, the fundamentals of the combustion of glycerol (in both a refined and unrefined form) were to be investigated, with emphasis of the development of a system capable of reliably and repeatedly combusting glycerol as well as an analysis of the emissions produced during glycerol combustion. Focus was placed on quantifying common emissions in comparison to more traditional fuels and this work showed that the burner developed was able to completely combust glycerol within a relatively wide range of operating conditions. Additionally, focus was placed on examining specific emissions in more detail, namely interesting NOx emissions observed in initial trials, acrolein and other volatile organic emissions, and particulate and ash emissions. This work showed that the combustion of crude glycerol could result in significantly reduced NOx emissions as a function of the high fuel bound oxygen content within the glycerol fuel. It also showed that when burned properly, the combustion of crude glycerol did not result in excessive emissions of acrolein or any other VOC compared to the combustion from more traditional fuels. Lastly however, this work has shown that in any practical application in which glycerol …
Date: October 31, 2012
Creator: ROberts, William L.
Object Type: Report
System: The UNT Digital Library
Disposal Activities and the Unique Waste Streams at the Nevada National Security Site (NNSS) (open access)

Disposal Activities and the Unique Waste Streams at the Nevada National Security Site (NNSS)

This slide show documents waste disposal at the Nevada National Security Site. Topics covered include: radionuclide requirements for waste disposal; approved performance assessment (PA) for depleted uranium disposal; requirements; program approval; the Waste Acceptance Review Panel (WARP); description of the Radioactive Waste Acceptance Program (RWAP); facility evaluation; recent program accomplishments, nuclear facility safety changes; higher-activity waste stream disposal; and, large volume bulk waste streams.
Date: October 31, 2012
Creator: Arnold, P.
Object Type: Article
System: The UNT Digital Library
Energy Savings and Economics of Advanced Control Strategies for Packaged Heat Pumps (open access)

Energy Savings and Economics of Advanced Control Strategies for Packaged Heat Pumps

Pacific Northwest National Laboratory (PNNL), with funding from the U.S. Department of Energy’s (DOE’s) Building Technologies Program (BTP), evaluated a number of control strategies for packaged cooling equipment that can be implemented in an advanced controller, which can be retrofit into existing packaged heat pump units to improve their operational efficiency. This report documents the results of that analysis.
Date: October 31, 2012
Creator: Wang, Weimin; Huang, Yunzhi & Katipamula, Srinivas
Object Type: Report
System: The UNT Digital Library
Federal Involvement in Flood Response and Flood Infrastructure Repair: Storm Sandy Recovery (open access)

Federal Involvement in Flood Response and Flood Infrastructure Repair: Storm Sandy Recovery

Report regarding congressional efforts to structure federal actions and programs so they provide incentives to reduce flood risk without unduly infringing on private property rights or usurping local decision making.
Date: October 31, 2012
Creator: Carter, Nicole T.
Object Type: Report
System: The UNT Digital Library
Final Report Coupling in silico microbial models with reactive transport models to predict the fate of contaminants in the subsurface. (open access)

Final Report Coupling in silico microbial models with reactive transport models to predict the fate of contaminants in the subsurface.

This project successfully accomplished its goal of coupling genome-scale metabolic models with hydrological and geochemical models to predict the activity of subsurface microorganisms during uranium bioremediation. Furthermore, it was demonstrated how this modeling approach can be used to develop new strategies to optimize bioremediation. The approach of coupling genome-scale metabolic models with reactive transport modeling is now well enough established that it has been adopted by other DOE investigators studying uranium bioremediation. Furthermore, the basic principles developed during our studies will be applicable to much broader investigations of microbial activities, not only for other types of bioremediation, but microbial metabolism in diversity of environments. This approach has the potential to make an important contribution to predicting the impact of environmental perturbations on the cycling of carbon and other biogeochemical cycles.
Date: October 31, 2012
Creator: Lovley, Derek R.
Object Type: Report
System: The UNT Digital Library
The First Day of a New Congress: A Guide to Proceedings on the Senate Floor (open access)

The First Day of a New Congress: A Guide to Proceedings on the Senate Floor

Report that describes the well-established routine that occurs on the opening day of a new Congress.
Date: October 31, 2012
Creator: Schneider, Judy & Koempel, Michael L.
Object Type: Report
System: The UNT Digital Library
High Efficiency Driving Electronics for General Illumination LED Luminaires (open access)

High Efficiency Driving Electronics for General Illumination LED Luminaires

New generation of standalone LED driver platforms developed, which are more efficient These LED Drivers are more efficient (≥90%), smaller in size ( 0.15 in3/watt), lower in cost ( 12 cents/watt in high volumes in millions of units). And these products are very reliable having an operating life of over 50,000 hours. This technology will enable growth of LED light sources in the use. This will also help in energy saving and reducing total life cycle cost of LED units. Two topologies selected for next generation of LED drivers: 1) Value engineered single stage Flyback topology. This is suitable for low powered LED drivers up to 50W power. 2) Two stage boost power factor correction (PFC) plus LLC half bridge platform for higher powers. This topology is suitable for 40W to 300W LED drivers. Three new product platforms were developed to cover a wide range of LED drivers: 1) 120V 40W LED driver, 2) Intellivolt 75W LED driver, & 3) Intellivolt 150W LED driver. These are standalone LED drivers for rugged outdoor lighting applications. Based on these platforms number of products are developed and successfully introduced in the market place meeting key performance, size and cost goals.
Date: October 31, 2012
Creator: Upadhyay, Anand
Object Type: Report
System: The UNT Digital Library
Process for Low Cost Domestic Production of LIB Cathode Materials (open access)

Process for Low Cost Domestic Production of LIB Cathode Materials

The objective of the research was to determine the best low cost method for the large scale production of the Nickel-Cobalt-Manganese (NCM) layered cathode materials. The research and development focused on scaling up the licensed technology from Argonne National Laboratory in BASF’s battery material pilot plant in Beachwood Ohio. Since BASF did not have experience with the large scale production of the NCM cathode materials there was a significant amount of development that was needed to support BASF’s already existing research program. During the three year period BASF was able to develop and validate production processes for the NCM 111, 523 and 424 materials as well as begin development of the High Energy NCM. BASF also used this time period to provide free cathode material samples to numerous manufactures, OEM’s and research companies in order to validate the ma-terials. The success of the project can be demonstrated by the construction of the production plant in Elyria Ohio and the successful operation of that facility. The benefit of the project to the public will begin to be apparent as soon as material from the production plant is being used in electric vehicles.
Date: October 31, 2012
Creator: Thurston, Anthony
Object Type: Report
System: The UNT Digital Library
Proton beam lifetime increase with 10- and 12-pole correctors in the Relativistic Heavy Ion Collider (open access)

Proton beam lifetime increase with 10- and 12-pole correctors in the Relativistic Heavy Ion Collider

N/A
Date: October 31, 2012
Creator: Fischer, W.; Beebe-Wang, J.; Gu, X.; Luo, Y. & Nemesure, S.
Object Type: Report
System: The UNT Digital Library
Raman Lidar Profiles–Temperature (RLPROFTEMP) Value-Added Product (open access)

Raman Lidar Profiles–Temperature (RLPROFTEMP) Value-Added Product

The purpose of this document is to describe the Raman Lidar Profiles–Temperature (RLPROFTEMP) value-added product (VAP) and the procedures used to derive atmospheric temperature profiles from the raw RL measurements. Sections 2 and 4 describe the input and output variables, respectively. Section 3 discusses the theory behind the measurement and the details of the algorithm, including calibration and overlap correction.
Date: October 31, 2012
Creator: Newsom, RK; Sivaraman, C & McFarlane, SA
Object Type: Report
System: The UNT Digital Library
Reallocation of Water Storage at Federal Water Projects for Municipal and Industrial Water Supply (open access)

Reallocation of Water Storage at Federal Water Projects for Municipal and Industrial Water Supply

Report that analyzes the legal and policy issues associated with reallocation of water under the Water Supply Act of 1958 (WSA) and industrial (M&I) water supply use at Lake Lanier as an example.
Date: October 31, 2012
Creator: Brougher, Cynthia & Carter, Nicole T.
Object Type: Report
System: The UNT Digital Library
Recovery Act - An Interdisciplinary Program for Education and Outreach in Transportation Electrification (open access)

Recovery Act - An Interdisciplinary Program for Education and Outreach in Transportation Electrification

1) How the project adds to the education of engineering students in the area of vehicle electrification: This project created and implemented a significant interdisciplinary curriculum in HEV engineering that includes courses focused on the major components (engines, battery cells, e‐machines, and power electronics). The new curriculum, rather uniquely, features two new classes and two new labs that emphasize a vehicle level integration of a hybrid electric powertrain that parallels the vehicle development process used by the OEMs ‐ commercial grade software is used to design a hybrid electric vehicle, hardware‐in‐the‐loop testing is performed on each component until the entire powertrain is optimized, the calibration is flashed to a vehicle, ride‐and‐drives are executed including on board data acquisition. In addition, nine existing courses were modified by adding HEV material to the courses. 2) The educational effectiveness and economic feasibility of the new curriculum: The new courses are offered at both the undergraduate and graduate levels. They are listed across the college in mechanical, chemical, electrical, and materials science and engineering. They are offered both on campus and to distance learning students. Students across the college of engineering and at all degree levels are integrating these courses into their degree programs. …
Date: October 31, 2012
Creator: Anderson, Carl; Bohmann, Leonard; Naber, Jeffrey; Beard, John; Passerello, Chris; Worm, Jeremy et al.
Object Type: Report
System: The UNT Digital Library
RESULTS OF THE EXCRETA BIOASSAY QUALITY CONTROL PROGRAM FOR APRIL 1, 2011 THROUGH MARCH 31, 2012 (open access)

RESULTS OF THE EXCRETA BIOASSAY QUALITY CONTROL PROGRAM FOR APRIL 1, 2011 THROUGH MARCH 31, 2012

The performance statistics for the Hanford excreta radiobioassay program are presented and discussed. The performance period covers the second contract year of Contract 112512 - April 2011 to March 2012.
Date: October 31, 2012
Creator: Antonio, Cheryl L. & MacLellan, Jay A.
Object Type: Report
System: The UNT Digital Library
Small- and Medium-Sized Commercial Building Monitoring and Controls Needs: A Scoping Study (open access)

Small- and Medium-Sized Commercial Building Monitoring and Controls Needs: A Scoping Study

Buildings consume over 40% of the total energy consumption in the U.S. A significant portion of the energy consumed in buildings is wasted because of the lack of controls or the inability to use existing building automation systems (BASs) properly. Much of the waste occurs because of our inability to manage and controls buildings efficiently. Over 90% of the buildings are either small-size (<5,000 sf) or medium-size (between 5,000 sf and 50,000 sf); these buildings currently do not use BASs to monitor and control their building systems from a central location. According to Commercial Building Energy Consumption Survey (CBECS), about 10% of the buildings in the U.S. use BASs or central controls to manage their building system operations. Buildings that use BASs are typically large (>100,000 sf). Lawrence Berkeley National Laboratory (LBNL), Oak Ridge National Laboratory (ORNL) and Pacific Northwest National Laboratory (PNNL) were asked by the U.S. Department of Energy’s (DOE’s) Building Technologies Program (BTP) to identify monitoring and control needs for small- and medium-sized commercial buildings and recommend possible solutions. This study documents the needs and solutions for small- and medium-sized buildings.
Date: October 31, 2012
Creator: Katipamula, Srinivas; Underhill, Ronald M.; Goddard, James K.; Taasevigen, Danny J.; Piette, M. A.; Granderson, J. et al.
Object Type: Report
System: The UNT Digital Library
Standard Measurement and Verification Plan for Lighting Retrofit Projects for Buildings and Building Sites (open access)

Standard Measurement and Verification Plan for Lighting Retrofit Projects for Buildings and Building Sites

This document provides a framework for standard measurement and verification (M&V) of lighting retrofit and replacement projects. It was developed to provide site owners, contractors, and other involved organizations with the essential elements of a robust M&V plan for lighting projects. It includes details on all aspects of effectively measuring light levels of existing and post-retrofit projects, conducting power measurement, and developing cost-effectiveness analysis. This framework M&V plan also enables consistent comparison among similar lighting projects, and may be used to develop M&V plans for non--lighting-technology retrofits and new installations.
Date: October 31, 2012
Creator: Richman, Eric E.
Object Type: Report
System: The UNT Digital Library
Summary of Compression Testing of U-10Mo (open access)

Summary of Compression Testing of U-10Mo

The mechanical properties of depleted uranium plus 10 weight percent molybdenum alloy have been evaluated by high temperature compression testing.
Date: October 31, 2012
Creator: Nyberg, Eric A.; Joshi, Vineet V.; Lavender, Curt A. & Burkes, Douglas
Object Type: Report
System: The UNT Digital Library
ANALYTICAL RESULTS OF MOX COLEMANITE CONCRETE SAMPLES POURED AUGUST 29, 2012 (open access)

ANALYTICAL RESULTS OF MOX COLEMANITE CONCRETE SAMPLES POURED AUGUST 29, 2012

The Mixed Oxide Fuel Fabrication Facility (MFFF) will use colemanite bearing concrete neutron absorber panels credited with attenuating neutron flux in the criticality design analyses and shielding operators from radiation. The Savannah River National Laboratory is tasked with measuring the total density, partial hydrogen density, and partial boron density of the colemanite concrete. Samples poured 8/29/12 were received on 9/20/2012 and analyzed. The average total density of each of the samples measured by the ASTM method C 642 was within the lower bound of 1.88 g/cm{sup 3}. The average partial hydrogen density of samples 8.6.1, 8.7.1, and 8.5.3 as measured using method ASTM E 1311 met the lower bound of 6.04E-02 g/cm{sup 3}. The average measured partial boron density of each sample met the lower bound of 1.65E-01 g/cm{sup 3} measured by the ASTM C 1301 method. The average partial hydrogen density of samples 8.5.1, 8.6.3, and 8.7.3 did not meet the lower bound. The samples, as received, were not wrapped in a moist towel as previous samples and appeared to be somewhat drier. This may explain the lower hydrogen partial density with respect to previous samples.
Date: October 30, 2012
Creator: Cozzi, A.; Best, D. & Reigel, M.
Object Type: Report
System: The UNT Digital Library
Energy Storage/Conservation and Carbon Emissions Reduction Demonstration Project (open access)

Energy Storage/Conservation and Carbon Emissions Reduction Demonstration Project

The U.S. Department of Energy (DOE) awarded the Center for Transportation and the Environment (CTE) federal assistance for the management of a project to develop and test a prototype flywheel-­‐based energy recovery and storage system in partnership with Test Devices, Inc. (TDI). TDI specializes in the testing of jet engine and power generation turbines, which uses a great deal of electrical power for long periods of time. In fact, in 2007, the company consumed 3,498,500 kW-­‐hr of electricity in their operations, which is equivalent to the electricity of 328 households. For this project, CTE and TDI developed and tested a prototype flywheel-­‐based energy recovery and storage system. This technology is being developed at TDI’s facilities to capture and reuse the energy necessary for the company’s core process. The new technology and equipment is expected to save approximately 80% of the energy used in the TDI process, reducing total annual consumption of power by approximately 60%, saving approximately two million kilowatt-­‐hours annually. Additionally, the energy recycling system will allow TDI and other end users to lower their peak power demand and reduce associated utility demand charges. The use of flywheels in this application is novel and requires significant development work from …
Date: October 30, 2012
Creator: Bigelow, Erik
Object Type: Report
System: The UNT Digital Library
Flexible Ultra Moisture Barrier Film for Thin-Film Photovoltaic Applications (open access)

Flexible Ultra Moisture Barrier Film for Thin-Film Photovoltaic Applications

Flexible Thin-film photovoltaic (TFPV) is a low cost alternative to incumbent c-Si PV products as it requires less volume of costly semiconductor materials and it can potentially reduce installation cost. Among the TFPV options, copper indium gallium diselenide (CIGS) has the highest efficiency and is believed to be one of the most attractive candidates to achieve PV cost reduction. However, CIGS cells are very moisture sensitive and require module water vapor transmission rate (WVTR) of less than 1x10-4 gram of water per square meter per day (g-H2O/m2/day). Successful development and commercialization of flexible transparent ultra moisture barrier film is the key to enable flexible CIGS TFPV products, and thus enable ultimate PV cost reduction. At DuPont, we have demonstrated at lab scale that we can successfully make polymer-based flexible transparent ultra moisture barrier film by depositing alumina on polymer films using atomic layer deposition (ALD) technology. The layer by layer ALD approach results in uniform and amorphous structure which effectively reduces pinhole density of the inorganic coating on the polymer, and thus allow the fabrication of flexible barrier film with WVTR of 10-5 g-H2O/m2/day. Currently ALD is a time-consuming process suitable only for high-value, relatively small substrates. To successfully commercialize …
Date: October 30, 2012
Creator: Dean, David M.
Object Type: Report
System: The UNT Digital Library