Resource Type

Degree Department

317/319 phytoremediation site monitoring report - 2005 growing season. (open access)

317/319 phytoremediation site monitoring report - 2005 growing season.

In 1999, Argonne National Laboratory (ANL) designed and installed a series of engineered plantings consisting of a vegetative cover system and approximately 800 hybrid poplars and willows rooting at various predetermined depths. The plants were installed using various methods including Applied Natural Science's TreeWell{reg_sign} system. The goal of the installation was to protect downgradient surface and groundwater by hydraulic control of the contaminated plume by intercepting the contaminated groundwater with the tree roots, removing moisture from the upgradient soil area, reducing water infiltration, preventing soil erosion, degrading and/or transpiring the residual volatile organic compounds (VOCs), and removing tritium from the subsoil and groundwater. This report presents the results of the monitoring activities conducted by Argonne's Energy Systems Division (ES) in the growing season of 2005. Monitoring of the planted trees began soon after the trees were installed in 1999 and has been conducted every summer since then. As the trees grew and consolidated their growth into the contaminated soil and groundwater, their exposure to the contaminants was progressively shown through tissue sampling. However, as trees grow larger, some of the findings obtained in the early years when trees were much smaller may not hold true now and need to be …
Date: March 31, 2006
Creator: Negri, M. C.; Gopalakrishnan, G. & Systems, Energy
System: The UNT Digital Library
527 Political Organizations: Legislation in the 109th Congress (open access)

527 Political Organizations: Legislation in the 109th Congress

The 109th Congress is examining the role of groups organized under section 527 of the Internal Revenue Code (IRC) that are involved in federal elections but are not operating under the requirements and restrictions of federal election law. Although such groups only recently emerged into public awareness, in 2004, they were widely seen as major players in the presidential election, with more than $400 million spent seeking to influence the outcome. Strictly speaking, the term “527” refers to a section of the Internal Revenue Code, which was added in 1975 to provide tax-exempt status to federal, state, and local political organizations, as defined in that statute. The controversy over these 527 groups arises from two factors: the different definitions used in federal election law and tax law as to what constitutes election-related activity and, further, the lack of certainty as to what election law itself regulates or may permissibly regulate. This report discusses these groups in detail, as well as related legislation.
Date: March 31, 2006
Creator: Cantor, Joseph E. & Lunder, Erika
System: The UNT Digital Library
100kW Energy Transfer Multiplexer Power Converter Prototype Development Project (open access)

100kW Energy Transfer Multiplexer Power Converter Prototype Development Project

Project Final Report for "100kW Energy Transfer Multiplexer Power Converter Prototype Development Project" prepared under DOE grant number DE-FG36-03GO13138. This project relates to the further development and prototype construction/evaluation for the Energy Transfer Multiplexer (ETM) power converter topology concept. The ETM uses a series resonant link to transfer energy from any phase of a multiphase input to any phase of a multiphase output, converting any input voltage and frequency to any output voltage and frequency. The basic form of the ETM converter consists of an eight (8)-switch matrix (six phase power switches and two ground power switches) and a series L-C resonant circuit. Electronic control of the switches allows energy to be transferred in the proper amount from any phase to any other phase. Depending upon the final circuit application, the switches may be either SCRs or IGBTs. The inherent characteristics of the ETM converter include the following: Power processing in either direction (bidirectional); Large voltage gain without the need of low frequency magnetics; High efficiency independent of output load and frequency; Wide bandwidth with fast transient response and; Operation as a current source. The ETM is able to synthesize true sinusoidal waveforms with low harmonic distortions. For a low …
Date: March 21, 2006
Creator: Skeist, S. Merrill; Baker, Richard H.; Marini, Anthony G. P. & Bennett, Keith
System: The UNT Digital Library
1E Wind Energy Program: Technical Information and Outreach Support Final Technical Report (open access)

1E Wind Energy Program: Technical Information and Outreach Support Final Technical Report

A U.S. consensus-based collaborative formed in 1994, the National Wind Coordinating Committee (NWCC) identifies issues that affect the use of wind power, establishes dialogue among key stakeholders, and catalyzes appropriate activities to support the development of environmentally, economically, and politically sustainable commercial markets for wind power. NWCC members include representatives from electric utilities and support organizations, state legislatures, state utility commissions, consumer advocacy offices, wind equipment suppliers and developers, green power marketers, environmental organizations, agriculture and economic development organizations, and state and federal agencies.
Date: March 9, 2006
Creator: Arnold, Abigail
System: The UNT Digital Library
2005 Annual Report (open access)

2005 Annual Report

As the cover of our ''2005 Annual Report'' highlights, Lawrence Livermore National Laboratory joined the international science community in celebrating the World Year of Physics in 2005, with special events and science outreach and education programs. Einstein's remarkable discoveries in 1905 provided an opportunity to reflect on how physics has changed the world during the last century and on the promise of future beneficial discoveries. For half of the past century, Lawrence Livermore, which was established to meet an urgent national security need, has been contributing to the advancement of science and technology in a very special way. Co-founder Ernest O. Lawrence was the leading proponent in his generation of large-scale, multidisciplinary science and technology teams. That's Livermore's distinctive heritage and our continuing approach as a national laboratory managed and operated by the University of California for the Department of Energy's National Nuclear Security Administration (DOE/NNSA). We focus on important problems that affect our nation's security and seek breakthrough advances in science and technology to achieve mission goals. An event in 2005 exemplifies our focus on science and technology advances in support of mission goals. In October, distinguished visitors came to Livermore to celebrate the tenth anniversary of the Accelerated …
Date: March 31, 2006
Creator: Chrzanowski, P & Walter, K
System: The UNT Digital Library
2005 Status Report Savings Estimates for the ENERGY STAR(R)Voluntary Labeling Program (open access)

2005 Status Report Savings Estimates for the ENERGY STAR(R)Voluntary Labeling Program

ENERGY STAR(R) is a voluntary labeling program designed toidentify and promote energy-efficient products, buildings and practices.Operated jointly by the Environmental Protection Agency (EPA) and theU.S. Department of Energy (DOE), Energy Star labels exist for more thanforty products, spanning office equipment, residential heating andcooling equipment, commercial and residential lighting, home electronics,and major appliances. This report presents savings estimates for a subsetof ENERGY STAR labeled products. We present estimates of the energy,dollar and carbon savings achieved by the program in the year 2004, whatwe expect in 2005, and provide savings forecasts for two marketpenetration scenarios for the periods 2005 to 2010 and 2005 to 2020. Thetarget market penetration forecast represents our best estimate of futureENERGY STAR savings. It is based on realistic market penetration goalsfor each of the products. We also provide a forecast under the assumptionof 100 percent market penetration; that is, we assume that all purchasersbuy ENERGY STAR-compliant products instead of standard efficiencyproducts throughout the analysis period.
Date: March 7, 2006
Creator: Webber, Carrie A.; Brown, Richard E. & Sanchez, Marla
System: The UNT Digital Library
2006 Pacific Northwest Loads and Resources Study. (open access)

2006 Pacific Northwest Loads and Resources Study.

The Pacific Northwest Loads and Resources Study (White Book), which is published annually by the Bonneville Power Administration (BPA), establishes one of the planning bases for supplying electricity to customers. The White Book contains projections of regional and Federal system load and resource capabilities, along with relevant definitions and explanations. The White Book also contains information obtained from formalized resource planning reports and data submittals including those from individual utilities, the Northwest Power and Conservation Council (Council), and the Pacific Northwest Utilities Conference Committee (PNUCC). The White Book is not an operational planning guide, nor is it used for determining BPA revenues, although the database that generates the data for the White Book analysis contributes to the development of BPA's inventory and ratemaking processes. Operation of the Federal Columbia River Power System (FCRPS) is based on a set of criteria different from that used for resource planning decisions. Operational planning is dependent upon real-time or near-term knowledge of system conditions that include expectations of river flows and runoff, market opportunities, availability of reservoir storage, energy exchanges, and other factors affecting the dynamics of operating a power system. The load resource balance of both the Federal system and the region is …
Date: March 1, 2006
Creator: United States. Bonneville Power Administration.
System: The UNT Digital Library
2006 Pacific Northwest Loads and Resources Study, Technical Appendix, Volume 1: Energy Analysis. (open access)

2006 Pacific Northwest Loads and Resources Study, Technical Appendix, Volume 1: Energy Analysis.

None
Date: March 1, 2006
Creator: United States. Bonneville Power Administration.
System: The UNT Digital Library
2006 Pacific Northwest Loads and Resources Study, Technical Appendix, Volume 2: Capacity Analysis. (open access)

2006 Pacific Northwest Loads and Resources Study, Technical Appendix, Volume 2: Capacity Analysis.

None
Date: March 1, 2006
Creator: United States. Bonneville Power Administration.
System: The UNT Digital Library
2006 Status Report Savings Estimates for the ENERGY STAR(R)Voluntary Labeling Program (open access)

2006 Status Report Savings Estimates for the ENERGY STAR(R)Voluntary Labeling Program

ENERGY STAR(R) is a voluntary labeling program designed toidentify and promote energy-efficient products, buildings and practices.Operated jointly by the Environmental Protection Agency (EPA) and theU.S. Department of Energy (DOE), ENERGY STAR labels exist for more thanthirty products, spanning office equipment, residential heating andcooling equipment, commercial and residential lighting, home electronics,and major appliances. This report presents savings estimates for a subsetof ENERGY STAR labeled products. We present estimates of the energy,dollar and carbon savings achieved by the program in the year 2005, whatwe expect in 2006, and provide savings forecasts for two marketpenetration scenarios for the periods 2006 to 2015 and 2006 to 2025. Thetarget market penetration forecast represents our best estimate of futureENERGY STAR savings. It is based on realistic market penetration goalsfor each of the products. We also provide a forecast under the assumptionof 100 percent market penetration; that is, we assume that all purchasersbuy ENERGY STAR-compliant products instead of standard efficiencyproducts throughout the analysis period.
Date: March 7, 2006
Creator: Webber, Carrie A.; Brown, Richard E.; Sanchez, Marla & Homan,Gregory K.
System: The UNT Digital Library
Ab Initio Studies of Coke Formation on Ni Catalysts During Methane Reforming (open access)

Ab Initio Studies of Coke Formation on Ni Catalysts During Methane Reforming

The atomic-scale processes that control the formation of carbon deposits on Ni catalysts in reforming applications are poorly understood. Ab initio Density Functional Theory calculations have been used to examine several key elementary steps in the complex network of chemical reactions that precedes carbon formation on practical catalysts. Attention has been focused on the disproportionation of CO. A comparative study of this reaction on flat and stepped crystal planes of Ni has provided the first direct evidence that surface carbon formation is driven by elementary reactions occurring at defect sites on Ni catalysts. The adsorption and diffusion of atomic H on several flat and stepped Ni surfaces has also been characterized experimentally.
Date: March 5, 2006
Creator: Sholl, David S.
System: The UNT Digital Library
AN ACCELERATED RATE CALORIMETRY STUDY OF CAUSTIC-SIDE SOLVENT EXTRACTION SOLVENT WITHOUT EXTRACTANT (open access)

AN ACCELERATED RATE CALORIMETRY STUDY OF CAUSTIC-SIDE SOLVENT EXTRACTION SOLVENT WITHOUT EXTRACTANT

This study found that 4 - 48 part per thousand (ppth) of Caustic Side Solvent Extraction (CSSX) solvent without extractant in caustic salt solution at evaporator-relevant temperatures result in no process-significant energetic events. However, the data suggest a chemical reaction (possible decomposition) in the CSSX solvent near 140 C. This concentration of entrained solvent is believed to markedly exceed the amount of solvent that will pass from the Modular Caustic Side Solvent Unit (MCU) through the downstream Defense Waste Processing Facility and enter the evaporator through routine tank farm operations. The rate of pressure rise at 140 C differs appreciably - i.e., is reduced - for salt solution containing the organic from that of the same solution without solvent. This behavior is due to a reaction between the CSSX components and the salt solution simulant.
Date: March 7, 2006
Creator: Fondeur, F & Samuel Fink, S
System: The UNT Digital Library
An Accelerator Neutron Source for BNCT (open access)

An Accelerator Neutron Source for BNCT

The overall goal of this project was to develop an accelerator-based neutron source (ABNS) for Boron Neutron Capture Therapy (BNCT). Specifically, our goals were to design, and confirm by measurement, a target assembly and a moderator assembly that would fulfill the design requirements of the ABNS. These design requirements were 1) that the neutron field quality be as good as the neutron field quality for the reactor-based neutron sources for BNCT, 2) that the patient treatment time be reasonable, 3) that the proton current required to treat patients in reasonable times be technologially achievable at reasonable cost with good reliability, and accelerator space requirements which can be met in a hospital, and finally 4) that the treatment be safe for the patients.
Date: March 14, 2006
Creator: Blue, Thomas, E
System: The UNT Digital Library
Accreditation and the Reauthorization of the Higher Education Act (open access)

Accreditation and the Reauthorization of the Higher Education Act

This report summarizes the issues with reauthorizing the Higher Education Act (HEA) and highlights accreditation in particular. One consideration the report contains is the possibility of Congress changing the role accreditation plays in reference to financial aid for students. Moreover, the report considers the place of accreditation in reference to the overall quality of an academic institution.
Date: March 27, 2006
Creator: Skinner, Rebecca R. & Feder, Jody
System: The UNT Digital Library
Adaptive Full-Spectrum Solar Energy Systems Cross-Cutting R&D on adaptive full-spectrum solar energy systems for more efficient and affordable use of solar energy in buildings and hybrid photobioreactors (open access)

Adaptive Full-Spectrum Solar Energy Systems Cross-Cutting R&D on adaptive full-spectrum solar energy systems for more efficient and affordable use of solar energy in buildings and hybrid photobioreactors

This RD&D project is a multi-institutional effort to develop a hybrid solar lighting (HSL) system that transports daylight from a paraboloidal dish concentrator to a luminaire via a bundle of polymer fiber optics. The luminaire can be a device to distribute sunlight into a space for the production of algae for CO{sub 2} sequestration or it can be a device that is a combination of daylighting and electric lighting for space/task lighting. In this project, the sunlight is collected using a one-meter paraboloidal concentrator dish with two-axis tracking. For the third generation (beta) system, the secondary mirror is an ellipsoidal mirror that directs the visible light into a bundle of 3 mm diameter fibers. The IR spectrum is filtered out to minimize unnecessary heating at the fiber entrance region. This report describes the major achievements from this research that began in August 2001.
Date: March 30, 2006
Creator: Wood, Byard & Kim, Kwang
System: The UNT Digital Library
Administrative Subpoenas in Criminal Investigations: A Brief Legal Analysis (open access)

Administrative Subpoenas in Criminal Investigations: A Brief Legal Analysis

Administrative subpoena authority is the power vested in various administrative agencies to compel testimony or the production of documents or both in aid of the agencies’ performance of their duties. As a constitutional matter, the Fourth Amendment only demands that administrative subpoenas be "reasonable." Although more extensive proposals were offered in the 108th Congress, the law enforcement related administrative subpoena proposals in the 109th Congress appear in S. 600, relating to the Secretary of State’s responsibilities to protect U.S. foreign missions and foreign dignitaries visiting this country; in H.R. 3726, relating to federal obscenity investigations; and in H.R. 4170, relating to the apprehension of fugitives charged with, or convicted of, federal or state felonies. This report is available abridged – without footnotes, appendices, and most of the citations to authority – as CRS Report RS22407, Administrative Subpoenas in Criminal Investigations: A Sketch, by Charles Doyle.
Date: March 17, 2006
Creator: Doyle, Charles
System: The UNT Digital Library
Administrative Subpoenas in Criminal Investigations: A Sketch (open access)

Administrative Subpoenas in Criminal Investigations: A Sketch

Administrative subpoena authority is the power vested in various administrative agencies to compel testimony or the production of documents or both in aid of the agencies’ performance of their duties. Proposals in the 109th Congress for greater use of administrative subpoenas in a law enforcement context appear in S. 600, relating to the Secretary of State’s responsibilities to protect U.S. foreign missions and foreign dignitaries visiting this country; in H.R. 3726, relating to federal obscenity investigations; and in H.R. 4170, relating to the apprehension of fugitives charged with, or convicted of, federal or state felonies. This is an abridged version — without footnotes, appendices, quotation marks and most citations to authority — of CRS Report RL33321, Administrative Subpoenas in Criminal Investigations: Background and Proposed Adjustments, by Charles Doyle.
Date: March 17, 2006
Creator: Doyle, Charles
System: The UNT Digital Library
Advanced Hydrogen Transport Membranes for Vision 21 Fossil Fuel Plants (open access)

Advanced Hydrogen Transport Membranes for Vision 21 Fossil Fuel Plants

The objective of this project was to develop an environmentally benign, inexpensive, and efficient method for separating hydrogen from gas mixtures produced during industrial processes, such as coal gasification. A family of hydrogen separation membranes was developed including single phase mixed conducting ceramics, ceramic/ceramic composites, cermet membranes, cermet membranes containing a hydrogen permeable metal, and intermediate temperature composite layered membranes. Each membrane type had different operating parameters, advantages, and disadvantages that were documented over the course of the project. Research on these membranes progressed from ceramics to cermets to intermediate temperature composite layered membranes. During this progression performance was increased from 0.01 mL x min{sup -1} x cm{sup -2} up to 423 mL x min{sup -1} x cm{sup -2}. Eltron and team membranes not only developed each membrane type, but also membrane surface catalysis and impurity tolerance, creation of thin film membranes, alternative applications such as membrane promoted alkane dehydrogenation, demonstration of scale-up testing, and complete engineering documentation including process and mechanical considerations necessary for inclusion of Eltron membranes in a full scale integrated gasification combined cycle power plant. The results of this project directly led to a new $15 million program funded by the Department of Energy. This new …
Date: March 31, 2006
Creator: Evenson, Carl R. & Roark, Shane E.
System: The UNT Digital Library
Advanced Power Ultra-Uprates of Existing Plants (APPU) Final Scientific/Technical Report (open access)

Advanced Power Ultra-Uprates of Existing Plants (APPU) Final Scientific/Technical Report

This project assessed the feasibility of a Power Ultra-Uprate on an existing nuclear plant. The study determined the technical and design limitations of the current components, both inside and outside the containment. Based on the identified plant bottlenecks, the design changes for major pieces of equipment required to meet the Power Ultra-Uprate throughput were determined. Costs for modified pieces of equipment and for change-out and disposal of the replaced equipment were evaluated. These costs were then used to develop capital, fuel and operating and maintenance cost estimates for the Power Ultra-Uprate plant. The cost evaluation indicates that the largest cost components are the replacement of power (during the outage required for the uprate) and the new fuel loading. Based on these results, the study concluded that, for a ?standard? 4-loop plant, the proposed Power Ultra-Uprate is technically feasible. However, the power uprate is likely to be more expensive than the cost (per Kw electric installed) of a new plant when large capacity uprates are considered (>25%). Nevertheless, the concept of the Power Ultra-Uprate may be an attractive option for specific nuclear power plants where a large margin exists in the steam and power conversion system or where medium power increases …
Date: March 31, 2006
Creator: Rubiolo, Pablo R.; Conway, Lawarence E.; Oriani, Luca; Lahoda, Edward J.; DeSilva, Greg (Westinghouse Science and Technology Department); Hu, Min H. et al.
System: The UNT Digital Library
Advances in Electromagnetic Modelling through High Performance Computing (open access)

Advances in Electromagnetic Modelling through High Performance Computing

Under the DOE SciDAC project on Accelerator Science and Technology, a suite of electromagnetic codes has been under development at SLAC that are based on unstructured grids for higher accuracy, and use parallel processing to enable large-scale simulation. The new modeling capability is supported by SciDAC collaborations on meshing, solvers, refinement, optimization and visualization. These advances in computational science are described and the application of the parallel eigensolver Omega3P to the cavity design for the International Linear Collider is discussed.
Date: March 29, 2006
Creator: Ko, K.; Folwell, N.; Ge, L.; Guetz, A.; Lee, L.; Li, Z. et al.
System: The UNT Digital Library
Afghanistan: Elections, Constitution, and Government (open access)

Afghanistan: Elections, Constitution, and Government

In 2004 and 2005, Afghanistan adopted a permanent constitution and elected a president and a parliament. The parliament is emerging as a significant force in Afghan politics, as shown in debate over a new cabinet proposed in March 2006. However, insurgent violence continues to threaten Afghan stability. See CRS Report RL30588, Afghanistan: Post-War Governance, Security, and U.S. Policy, by Kenneth Katzman.
Date: March 14, 2006
Creator: Katzman, Kenneth
System: The UNT Digital Library
Afghanistan: Post-War Governance, Security, and U.S. Policy (open access)

Afghanistan: Post-War Governance, Security, and U.S. Policy

The United States and its allies are helping Afghanistan emerging from more than 22 years of warfare, although substantial risk to Afghan stability remains. Before the U.S. military campaign against the orthodox Islamist Taliban movement began on October 7, 2001, Afghanistan had been mired in conflict since the Soviet invasion of Afghanistan in 1979. The defeat of the Taliban has enabled the United States and its coalition partners to send forces throughout Afghanistan to search for Taliban and Al Qaeda fighters and leaders that remain at large, including Osama bin Laden. As the war against remaining Al Qaeda and Taliban elements winds down, the United States is shifting its military focus toward stabilizing the interim government, including training a new Afghan national army, and supporting the international security force (ISAF) that is helping the new government provide security.
Date: March 17, 2006
Creator: Katzman, Kenneth
System: The UNT Digital Library
AgraPure Mississippi Biomass Project (open access)

AgraPure Mississippi Biomass Project

The AgraPure Mississippi Biomass project was a congressionally directed project, initiated to study the utilization of Mississippi agricultural byproducts and waste products in the production of bio-energy and to determine the feasibility of commercialization of these agricultural byproducts and waste products as feedstocks in the production of energy. The final products from this project were two business plans; one for a Thermal plant, and one for a Biodiesel/Ethanol plant. Agricultural waste fired steam and electrical generating plants and biodiesel plants were deemed the best prospects for developing commercially viable industries. Additionally, oil extraction methods were studied, both traditional and two novel techniques, and incorporated into the development plans. Mississippi produced crop and animal waste biomasses were analyzed for use as raw materials for both industries. The relevant factors, availability, costs, transportation, storage, location, and energetic value criteria were considered. Since feedstock accounts for more than 70 percent of the total cost of producing biodiesel, any local advantages are considered extremely important in developing this particular industry. The same factors must be evaluated in assessing the prospects of commercial operation of a steam and electrical generation plant. Additionally, the access to the markets for electricity is more limited, regulated and tightly …
Date: March 31, 2006
Creator: Blackwell,D.A; Broadhead, L.W. & Harrell, W.J.
System: The UNT Digital Library
Agricultural Biotechnology: The U.S.-EU Dispute (open access)

Agricultural Biotechnology: The U.S.-EU Dispute

In May 2003, the United States, Canada, and Argentina initiated a formal challenge before the World Trade Organization (WTO) of the European Union’s (EU’s) de facto moratorium on approving new agricultural biotechnology products, in place since 1998. Although the EU effectively lifted the moratorium in May 2004 by approving a genetically engineered (GE) corn variety, the three countries are pursuing the case, in part because a number of EU member states continue to block approved biotech products. Because of delays, the WTO is expected to decide the case by December 2005. The moratorium reportedly cost U.S. corn growers some $300 million in exports to the EU annually. The EU moratorium, U.S. officials contend, threatened other agricultural exports not only to the EU, but also to other parts of the world where the EU approach to regulating agricultural biotechnology is taking hold.
Date: March 10, 2006
Creator: Hanrahan, Charles E.
System: The UNT Digital Library