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Cornell Fuel Cell Institute: Materials Discovery to Enable Fuel Cell Technologies (open access)

Cornell Fuel Cell Institute: Materials Discovery to Enable Fuel Cell Technologies

The discovery and understanding of new, improved materials to advance fuel cell technology are the objectives of the Cornell Fuel Cell Institute (CFCI) research program. CFCI was initially formed in 2003. This report highlights the accomplishments from 2006-2009. Many of the grand challenges in energy science and technology are based on the need for materials with greatly improved or even revolutionary properties and performance. This is certainly true for fuel cells, which have the promise of being highly efficient in the conversion of chemical energy to electrical energy. Fuel cells offer the possibility of efficiencies perhaps up to 90 % based on the free energy of reaction. Here, the challenges are clearly in the materials used to construct the heart of the fuel cell: the membrane electrode assembly (MEA). The MEA consists of two electrodes separated by an ionically conducting membrane. Each electrode is a nanocomposite of electronically conducting catalyst support, ionic conductor and open porosity, that together form three percolation networks that must connect to each catalyst nanoparticle; otherwise the catalyst is inactive. This report highlights the findings of the three years completing the CFCI funding, and incudes developments in materials for electrocatalyts, catalyst supports, materials with structured and …
Date: June 29, 2012
Creator: Abruna, H. D. & DiSalvo, Francis J.
Object Type: Report
System: The UNT Digital Library
Mid-Atlantic Wind - Overcoming the Challenges (open access)

Mid-Atlantic Wind - Overcoming the Challenges

This study, supported by the US Department of Energy, Wind Powering America Program, Maryland Department of Natural Resources and Chesapeake Bay Foundation, analyzed barriers to wind energy development in the Mid-Atlantic region along with options for overcoming or mitigating them. The Mid-Atlantic States including Delaware, Maryland, North Carolina and Virginia, have excellent wind energy potential and growing demand for electricity, but only two utility-scale projects have been installed to date. Reasons for this apathetic development of wind resources were analyzed and quantified for four markets. Specific applications are: 1) Appalachian mountain ridgeline sites, 2) on coastal plains and peninsulas, 3) at shallow water sites in Delaware and Chesapeake Bays, Albemarle and Pamlico Sounds, and 4) at deeper water sites off the Atlantic coast. Each market has distinctly different opportunities and barriers. The primary barriers to wind development described in this report can be grouped into four categories; state policy and regulatory issues, wind resource technical uncertainty, economic viability, and public interest in environmental issues. The properties of these typologies are not mutually independent and do interact. The report concluded that there are no insurmountable barriers to land-based wind energy projects and they could be economically viable today. Likewise potential sites …
Date: June 29, 2012
Creator: Ancona, Daniel F., III; George, Kathryn E.; Sparling, Lynn; Buckheit, Bruce C.; LoBue, Daniel & Bowers, and Richard P.
Object Type: Report
System: The UNT Digital Library
Using The SLAC Two-Mile Accelerator for Powering an FEL (open access)

Using The SLAC Two-Mile Accelerator for Powering an FEL

A parameter survey is made, employing the recently developed 2D formalism for an FEL, of the characteristics of an FEL using the SLAC accelerator. Attention is focused upon a wavelength of 40 {angstrom} (the water window) and 1 {angstrom} case is also presented. They consider employing the SLAC linac with its present operating parameters and with improved parameters such as would be supplied by a new photo-cathode injector. They find that improved parameters are necessary, but that the parameters presently achieved with present-day photo-cathode guns are adequate to reach the water window.
Date: June 29, 2012
Creator: Barletta, W. A.; /LLNL, Livermore; Sessler, A. M.; /LBL, Berkeley; Yu, L. H. & /Brookhaven
Object Type: Article
System: The UNT Digital Library
Catalyzed Ceramic Burner Material (open access)

Catalyzed Ceramic Burner Material

Catalyzed combustion offers the advantages of increased fuel efficiency, decreased emissions (both NOx and CO), and an expanded operating range. These performance improvements are related to the ability of the catalyst to stabilize a flame at or within the burner media and to combust fuel at much lower temperatures. This technology has a diverse set of applications in industrial and commercial heating, including boilers for the paper, food and chemical industries. However, wide spread adoption of catalyzed combustion has been limited by the high cost of precious metals needed for the catalyst materials. The primary objective of this project was the development of an innovative catalyzed burner media for commercial and small industrial boiler applications that drastically reduce the unit cost of the catalyzed media without sacrificing the benefits associated with catalyzed combustion. The scope of this program was to identify both the optimum substrate material as well as the best performing catalyst construction to meet or exceed industry standards for durability, cost, energy efficiency, and emissions. It was anticipated that commercial implementation of this technology would result in significant energy savings and reduced emissions. Based on demonstrated achievements, there is a potential to reduce NOx emissions by 40,000 TPY …
Date: June 29, 2012
Creator: Barnes, Amy S.
Object Type: Report
System: The UNT Digital Library
[28th Annual Summer Arts Institute "Whitney: The Musical"] captions transcript

[28th Annual Summer Arts Institute "Whitney: The Musical"]

Video recording from The Black Academy of Arts and Letters recorded during their 28th Annual Summer Arts Institute "Whitney: The Musical" event in 2012. This video shows children to young adults performing in a musical involving dancing, singing and acting. The video concludes with a passionate discussion with founder Curtis King.
Date: 2012-06-29/2012-06-30
Creator: Boyd, Kenneth & Evans, Tracy
Object Type: Video
System: The UNT Digital Library
[28th annual Summer Youth Arts DISD cultural enrichment program behind the scenes] captions transcript

[28th annual Summer Youth Arts DISD cultural enrichment program behind the scenes]

Video recording from The Black Academy of Arts and Letters of behind-the-scenes footage captured by students participating in the 28th annual Summer Youth Arts Institute performance "Whitney: The Musical" and the DISD cultural enrichment program. The footage shows interviews with instructors and slideshows of behind-the-scenes photos and videos. The tape concludes with a long roll of credits.
Date: June 29, 2012
Creator: Boyd, Kenneth & King, Curtis
Object Type: Video
System: The UNT Digital Library
The Altus Times (Altus, Okla.), Vol. 113, No. 21, Ed. 1 Friday, June 29, 2012 (open access)

The Altus Times (Altus, Okla.), Vol. 113, No. 21, Ed. 1 Friday, June 29, 2012

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: June 29, 2012
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
Immediate Deployment of Waste Energy Recovery Technologies at Multi Sites (open access)

Immediate Deployment of Waste Energy Recovery Technologies at Multi Sites

Verso Paper Corp. implemented a portfolio of 13 commercially available proven industrial technologies each exceeding 30% minimum threshold efficiency and at least 25% efficiency increase. These sub-projects are a direct result of a grant received from the Department of Energy (DOE) through its FOA 0000044 (Deployment of Combined Heat and Power (CHP) Systems, District Energy Systems, Waste Energy Recovery Systems, and Efficient Industrial Equipment), which was funded by the American Recovery Act. These were installed at 3 sites in 2 states and are helping to reduce Verso costs, making the facilities more competitive. This created approximately 100 construction jobs (FTE's) and reduced impacted Verso facilities' expense budgets. These sub-projects were deployed at Verso paper mills located in Jay, Maine, Bucksport, Maine, and Sartell, Minnesota. The paper mills are the economic engines of the rural communities in which these mills are located. Reinvestment in waste energy recovery capital improvements is providing a stimulus to help maintain domestic jobs and to competitively position the US pulp and paper industry with rising energy costs. Energy efficiency improvements are also providing a positive environmental impact by reducing greenhouse gas emissions, the quantity of wastewater treated and discharged, and fossil fuel demand. As a result …
Date: June 29, 2012
Creator: Castonguay, Dennis
Object Type: Report
System: The UNT Digital Library
North Korea: U.S. Relations, Nuclear Diplomacy, and Internal Situation (open access)

North Korea: U.S. Relations, Nuclear Diplomacy, and Internal Situation

This report provides background information on the negotiations over North Korea's nuclear weapons program that began in the early 1990s under the Clinton Administration. As U.S. policy toward Pyongyang evolved through the George W. Bush presidency and into the Obama Administration, the negotiations moved from mostly bilateral to the multilateral Six-Party Talks (made up of China, Japan, Russia, North Korea, South Korea, and the United States).
Date: June 29, 2012
Creator: Chanlett-Avery, Emma & Rinehart, Ian E.
Object Type: Report
System: The UNT Digital Library
Brownwood Bulletin (Brownwood, Tex.), Vol. 112, No. 221, Ed. 1 Friday, June 29, 2012 (open access)

Brownwood Bulletin (Brownwood, Tex.), Vol. 112, No. 221, Ed. 1 Friday, June 29, 2012

Weekly newspaper from Brownwood, Texas that includes local, state and national news along with advertising.
Date: June 29, 2012
Creator: Deason, Gene
Object Type: Newspaper
System: The Portal to Texas History
The Kerens Tribune (Kerens, Tex.), Vol. 120, No. 26, Ed. 1 Friday, June 29, 2012 (open access)

The Kerens Tribune (Kerens, Tex.), Vol. 120, No. 26, Ed. 1 Friday, June 29, 2012

Weekly newspaper from Kerens, Texas that includes local, state and national news along with extensive advertising.
Date: June 29, 2012
Creator: Epps, Sam
Object Type: Newspaper
System: The Portal to Texas History
Federal Laws Relating to Cybersecurity: Discussion of Proposed Revisions (open access)

Federal Laws Relating to Cybersecurity: Discussion of Proposed Revisions

This report discusses how the current legislative framework for cybersecurity might need to be revised.
Date: June 29, 2012
Creator: Fischer, Eric A.
Object Type: Report
System: The UNT Digital Library
Status of the Dark Energy Survey Camera (DECam) Project (open access)

Status of the Dark Energy Survey Camera (DECam) Project

The Dark Energy Survey Collaboration has completed construction of the Dark Energy Camera (DECam), a 3 square degree, 570 Megapixel CCD camera which will be mounted on the Blanco 4-meter telescope at CTIO. DECam will be used to perform the 5000 sq. deg. Dark Energy Survey with 30% of the telescope time over a 5 year period. During the remainder of the time, and after the survey, DECam will be available as a community instrument. All components of DECam have been shipped to Chile and post-shipping checkout finished in Jan. 2012. Installation is in progress. A summary of lessons learned and an update of the performance of DECam and the status of the DECam installation and commissioning will be presented.
Date: June 29, 2012
Creator: Flaugher, Brenna L.; Abbott, Timothy M. C.; Angstadt, Robert; Annis, Jim; Antonik, Michelle, L.; Bailey, Jim et al.
Object Type: Article
System: The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 97, No. 204, Ed. 1 Friday, June 29, 2012 (open access)

Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 97, No. 204, Ed. 1 Friday, June 29, 2012

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date: June 29, 2012
Creator: Gibbs, Angenene
Object Type: Newspaper
System: The Gateway to Oklahoma History
Texas Hydrogen Highway Fuel Cell Hybrid Bus and Fueling Infrastructure Technology Showcase - Final Scientific/Technical Report (open access)

Texas Hydrogen Highway Fuel Cell Hybrid Bus and Fueling Infrastructure Technology Showcase - Final Scientific/Technical Report

The Texas Hydrogen Highway project has showcased a hydrogen fuel cell transit bus and hydrogen fueling infrastructure that was designed and built through previous support from various public and private sector entities. The aim of this project has been to increase awareness among transit agencies and other public entities on these transportation technologies, and to place such technologies into commercial applications, such as a public transit agency. The initial project concept developed in 2004 was to show that a skid-mounted, fully-integrated, factory-built and tested hydrogen fueling station could be used to simplify the design, and lower the cost of fueling infrastructure for fuel cell vehicles. The approach was to design, engineer, build, and test the integrated fueling station at the factory then install it at a site that offered educational and technical resources and provide an opportunity to showcase both the fueling station and advanced hydrogen vehicles. The two primary technology components include: Hydrogen Fueling Station: The hydrogen fueling infrastructure was designed and built by Gas Technology Institute primarily through a funding grant from the Texas Commission on Environmental Quality. It includes hydrogen production, clean-up, compression, storage, and dispensing. The station consists of a steam methane reformer, gas clean-up system, …
Date: June 29, 2012
Creator: Hitchcock, David
Object Type: Report
System: The UNT Digital Library
ES12; The 24th Annual Workshop on Recent Developments in Electronic Structure Theory (open access)

ES12; The 24th Annual Workshop on Recent Developments in Electronic Structure Theory

ES12: The 24th Annual Workshop on Recent Developments in Electronic Structure Theory was held June 5-8, 2012 at Wake Forest University in Winston-Salem, NC 27109. The program consisted of 24 oral presentations, 70 posters, and 2 panel discussions. The attendance of the Workshop was comparable to or larger than previous workshops and participation was impressively diverse. The 136 participants came from all over the world and included undergraduate students, graduate students, postdoctoral researchers, and senior scientists. The general assessment of the Workshop was extremely positive in terms of the high level of scientific presentations and discussions, and in terms of the schedule, accommodations, and affordability of the meeting.
Date: June 29, 2012
Creator: Holzwarth, Natalie; Thonhauser, Timo & Salam, Akbar
Object Type: Report
System: The UNT Digital Library
The Jack County Herald (Jacksboro, Tex.), Vol. 67, No. 5, Ed. 1 Friday, June 29, 2012 (open access)

The Jack County Herald (Jacksboro, Tex.), Vol. 67, No. 5, Ed. 1 Friday, June 29, 2012

Weekly newspaper from Jacksboro, Texas that includes local, state, and national news along with advertising.
Date: June 29, 2012
Creator: Hudson, Pam
Object Type: Newspaper
System: The Portal to Texas History
LABORATORY REPORT ON THE REMOVAL OF PERTECHNETATE FROM TANK 241-AN-105 SIMULANT USING PUROLITE A530E (open access)

LABORATORY REPORT ON THE REMOVAL OF PERTECHNETATE FROM TANK 241-AN-105 SIMULANT USING PUROLITE A530E

This effort falls under the technetium management initiative and will provide data for those who will make decisions regarding the handling and disposition of technetium. To that end, the objective of this effort is to challenge Purolite{reg_sign} A530E against a double-shell tank simulant from tank 241-AN-105 spiked with pertechnetate (TcO{sub 4}{sup -}). The Purolite{reg_sign} A530E is commercially available and is currently being used at the 200 West Pump and Treat Groundwater Treatment Plant to remove pertechnetate. It has been demonstrated that Purolite{reg_sign} A530E is highly effective in removing TcO{sub 4}{sup -} from a water matrix. Purolite{reg_sign} A530E is the commercial product of the Oak Ridge National Laboratory's Biquat{trademark} resin. Further work has demonstrated that technetium-loaded A530E achieves a leachability index in Cast Stone of 12.5 (RPP-RPT-39195, Assessment of Technetium Leachability in Cement-Stabilized Basin 43 Groundwater Brine).
Date: June 29, 2012
Creator: JB, DUNCAN; KJ, HAGERTY; WP, MOORE & JM, JOHNSON
Object Type: Report
System: The UNT Digital Library
Recovery Act: High-Efficiency, Wideband Three-Phase Rectifiers and Adaptive Rectifier Management for Telecomm Central Office and Large Data Center Applications (open access)

Recovery Act: High-Efficiency, Wideband Three-Phase Rectifiers and Adaptive Rectifier Management for Telecomm Central Office and Large Data Center Applications

Lineage Power and Verizon teamed up to address a DOE funding opportunity focused on improving the power conversion chain in telecommunications facilities and data centers. The project had three significant elements: the design and development of high efficiency and high power three-phase rectifiers by Lineage Power, design and development of software to optimize overall plant energy efficiency by Lineage Power, and a field trial in active Verizon telecommunications facilities where energy consumption was measured before and after efficiency upgrades.
Date: June 29, 2012
Creator: Johnson, Mark A.
Object Type: Report
System: The UNT Digital Library
Bahrain: Reform, Security, and U.S. Policy (open access)

Bahrain: Reform, Security, and U.S. Policy

This report discusses the current state of Bahrain, which has undergone substantial political reforms since the late 1990s, but which still suffers from tension between the Shiite majority and the Sunni-led government. This report focuses particularly on Bahrain's relationship with Iran and Bahrain's relationship with the United States.
Date: June 29, 2012
Creator: Katzman, Kenneth
Object Type: Report
System: The UNT Digital Library
2012 CORRELATED ELECTRON SYSTEMS GRC AND GRS, JUNE 23-29, 2012 (open access)

2012 CORRELATED ELECTRON SYSTEMS GRC AND GRS, JUNE 23-29, 2012

The 2012 Gordon Conference on Correlated Electron Systems will present cutting-edge research on emergent properties arising from strong electronic correlations. While we expect the discussion at the meeting to be wide-ranging, given the breadth of the title subject matter, we have chosen several topics to be the particular focus of the talks. These are New Developments in Single and Bilayer Graphene, Topological States of Matter, including Topological Insulators and Spin Liquids, the Interplay Between Magnetism and Unconventional Superconductivity, and Quantum Critical Phenomena in Metallic Systems. We also plan to have shorter sessions on Systems Far From Equilibrium, Low Dimensional Electron Fluids, and New Directions (which will primarily focus on new experimental methodologies and their interpretation).
Date: June 29, 2012
Creator: Kivelson, Steven
Object Type: Article
System: The UNT Digital Library
A PERMEABLE ACTIVE AMENDMENT CONCRETE (PAAC) FOR CONTAMINANT REMEDIATION AND EROSION CONTROL (open access)

A PERMEABLE ACTIVE AMENDMENT CONCRETE (PAAC) FOR CONTAMINANT REMEDIATION AND EROSION CONTROL

The final project report for SEED SERDP ER - 2134 describes the development of permeable active amendment concrete (PAAC), which was evaluated through four tasks: 1) development of PAAC; 2) assessment of PAAC for contaminant removal; 3) evaluation of promising PAAC formulations for potential environmental impacts; and 4) assessment of the hydraulic, physical, and structural properties of PAAC. Conventional permeable concrete (often referred to as pervious concrete) is concrete with high porosity as a result of an extensive and interconnected void content. It is made from carefully controlled amounts of water and cementitious materials used to create a paste that forms a coating around aggregate particles. The mixture has a substantial void content (e.g., 15% - 25%) that results in a highly permeable structure that drains quickly. In PAAC, the aggregate material is partly replaced by chemically-active amendments that precipitate or adsorb contaminants in water that flows through the concrete interstices. PAAC combines the relatively high structural strength, ample void space, and water permeability of pervious concrete with the contaminant sequestration ability of chemically-active amendments to produce a new material with superior durability and ability to control contaminant mobility. The high surface area provided by the concrete interstices in PAAC …
Date: June 29, 2012
Creator: Knox, A.; Paller, M. & Dixon, K.
Object Type: Report
System: The UNT Digital Library
Decommissioning of the Remediation Systems at Waverly, Nebraska, in 2011-2012. (open access)

Decommissioning of the Remediation Systems at Waverly, Nebraska, in 2011-2012.

The Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) operated a grain storage facility in Waverly, Nebraska, from 1952 to 1974. During this time, the grain fumigant '80/20' (carbon tetrachloride/carbon disulfide) was used to preserve stored grain. In 1982, sampling by the U.S. Environmental Protection Agency (EPA) found carbon tetrachloride contamination in the town's groundwater. After an investigation of the contaminant distribution, the site was placed on the National Priority List (NPL) in 1986, and the CCC/USDA accepted responsibility for the contamination. An Interagency Compliance Agreement between the EPA and the CCC/USDA was finalized in May 1988 (EPA 1990). The EPA (Woodward-Clyde Consultants, contractor) started immediate cleanup efforts in 1987 with the installation of an air stripper, a soil vapor extraction system, a groundwater extraction well, and groundwater and soil gas monitoring wells (Woodward-Clyde 1986, 1988a,b). After the EPA issued its Record of Decision (ROD; EPA 1990), the CCC/USDA (Argonne National Laboratory, contractor) took over operation of the treatment systems. The CCC/USDA conducted a site investigation (Argonne 1991, 1992a,b), during which a carbon tetrachloride plume in groundwater was discovered northeast of the former facility. This plume was not being captured by the existing groundwater extraction system. The remediation …
Date: June 29, 2012
Creator: LaFreniere, L. M.
Object Type: Report
System: The UNT Digital Library
Thermal Integration of CO{sub 2} Compression Processes with Coal-Fired Power Plants Equipped with Carbon Capture (open access)

Thermal Integration of CO{sub 2} Compression Processes with Coal-Fired Power Plants Equipped with Carbon Capture

Coal-fired power plants, equipped either with oxycombustion or post-combustion CO{sub 2} capture, will require a CO{sub 2} compression system to increase the pressure of the CO{sub 2} to the level needed for sequestration. Most analyses show that CO{sub 2} compression will have a significant effect on parasitic load, will be a major capital cost, and will contribute significantly to reduced unit efficiency. This project used first principle engineering analyses and computer simulations to determine the effects of utilizing compressor waste heat to improve power plant efficiency and increase net power output of coal-fired power plants with carbon capture. This was done for units with post combustion solvent-based CO{sub 2} capture systems and for oxyfired power plants, firing bituminous, PRB and lignite coals. The thermal integration opportunities analyzed for oxycombustion capture are use of compressor waste heat to reheat recirculated flue gas, preheat boiler feedwater and predry high-moisture coals prior to pulverizing the coal. Among the thermal integration opportunities analyzed for post combustion capture systems are use of compressor waste heat and heat recovered from the stripper condenser to regenerate post-combustion CO{sub 2} capture solvent, preheat boiler feedwater and predry high-moisture coals. The overall conclusion from the oxyfuel simulations is that …
Date: June 29, 2012
Creator: Levy, Edward
Object Type: Report
System: The UNT Digital Library