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CONFIRMATORY SURVEY OF THE FUEL OIL TANK AREA HUMBOLDT BAY POWER PLANT EUREKA, CALIFORNIA (open access)

CONFIRMATORY SURVEY OF THE FUEL OIL TANK AREA HUMBOLDT BAY POWER PLANT EUREKA, CALIFORNIA

During the period of February 14 to 15, 2012, ORISE performed radiological confirmatory survey activities for the former Fuel Oil Tank Area (FOTA) and additional radiological surveys of portions of the Humboldt Bay Power Plant site in Eureka, California. The radiological survey results demonstrate that residual surface soil contamination was not present significantly above background levels within the FOTA. Therefore, it is ORISE’s opinion that the radiological conditions for the FOTA surveyed by ORISE are commensurate with the site release criteria for final status surveys as specified in PG&E’s Characterization Survey Planning Worksheet. In addition, the confirmatory results indicated that the ORISE FOTA survey unit Cs-137 mean concentrations results compared favorably with the PG&E FOTA Cs-137 mean concentration results, as determined by ORISE from the PG&E characterization data. The interlaboratory comparison analyses of the three soil samples analyzed by PG&E’s onsite laboratory and the ORISE laboratory indicated good agreement for the sample results and provided confidence in the PG&E analytical procedures and final status survey soil sample data reporting.
Date: April 9, 2012
Creator: ADAMS, WADE C.
System: The UNT Digital Library
Clean Air Status and Trends Network Annual Report: 2010 (open access)

Clean Air Status and Trends Network Annual Report: 2010

Annual report of the Clean Air Status and Trends Network (CASTNET) describing the program and data collection. It also presents information on air quality and recorded concentrations of pollutants such as ozone, sulfur, gases, and other elements of concern.
Date: April 2012
Creator: AMEC Environment & Infrastructure, Inc.
System: The UNT Digital Library
Discovery of Very High Energy Gamma Rays from PKS 1424+240 and Multiwavelength Constraints on its Redshift (open access)

Discovery of Very High Energy Gamma Rays from PKS 1424+240 and Multiwavelength Constraints on its Redshift

We report the first detection of very-high-energy (VHE) gamma-ray emission above 140GeV from PKS 1424+240, a BL Lac object with an unknown redshift. The photon spectrum above 140GeV measured by VERITAS is well described by a power law with a photon index of 3.8 {+-}0.5{sub stat} {+-} 0.3{sub syst} and a flux normalization at 200 GeV of (5.1 {+-} 0.9{sub stat} {+-} 0.5{sub syst}) x 10{sup -11} TeV{sup -1} cm{sup -2} s{sup -1}, where stat and syst denote the statistical and systematical uncertainty, respectively. The VHE flux is steady over the observation period between MJD 54881 and 55003 (2009 February 19 to June 21). Flux variability is also not observed in contemporaneous high energy observations with the Fermi Large Area Telescope (LAT). Contemporaneous X-ray and optical data were also obtained from the Swift XRT and MDM observatory, respectively. The broadband spectral energy distribution (SED) is well described by a one-zone synchrotron self-Compton (SSC) model favoring a redshift of less than 0.1. Using the photon index measured with Fermi in combination with recent extragalactic background light (EBL) absorption models it can be concluded from the VERITAS data that the redshift of PKS 1424+240 is less than 0.66.
Date: April 5, 2012
Creator: Acciari, V. A.; Aliu, E.; Arlen, T.; Aune, T.; Bautista, M.; Beilicke, M. et al.
System: The UNT Digital Library
Solid-State Fault Current Limiter Development : Design and Testing Update of a 15kV SSCL Power Stack (open access)

Solid-State Fault Current Limiter Development : Design and Testing Update of a 15kV SSCL Power Stack

ABSTRACT The Solid-State Fault Current Limiter (SSCL) is a promising technology that can be applied to utility power delivery systems to address the problem of increasing fault currents associated with load growth. As demand continues to grow, more power is added to utility system either by increasing generator capacity or by adding distributed generators, resulting in higher available fault currents, often beyond the capabilities of the present infrastructure. The SSCL is power-electronics based equipment designed to work with the present utility system to address this problem. The SSCL monitors the line current and dynamically inserts additional impedance into the line in the event of a fault being detected. The SSCL is based on a modular design and can be configured for 5kV through 69kV systems at nominal current ratings of 1000A to 4000A. Results and Findings This report provides the final test results on the development of 15kV class SSCL single phase power stack. The scope of work included the design of the modular standard building block sub-assemblies, the design and manufacture of the power stack and the testing of the power stack for the key functional tests of continuous current capability and fault current limiting action. Challenges and Objectives …
Date: April 30, 2012
Creator: Adapa, Dr. Ram & Piccone, Mr. Dante
System: The UNT Digital Library
Optimization of the Transport Shield for Neutrinoless Double Beta-decay Enriched Germanium (open access)

Optimization of the Transport Shield for Neutrinoless Double Beta-decay Enriched Germanium

This document presents results of an investigation of the material and geometry choice for the transport shield of germanium, the active detector material used in 76Ge neutrinoless double beta decay searches. The objective of this work is to select the optimal material and geometry to minimize cosmogenic production of radioactive isotopes in the germanium material. The design of such a shield is based on the calculation of the cosmogenic production rate of isotopes that are known to cause interfering backgrounds in 76Ge neutrinoless double beta decay searches.
Date: April 15, 2012
Creator: Aguayo Navarrete, Estanislao; Kouzes, Richard T.; Orrell, John L.; Reid, Douglas J. & Fast, James E.
System: The UNT Digital Library
SiD Letter of Intent (open access)

SiD Letter of Intent

This document presents the current status of the Silicon Detector (SiD) effort to develop an optimized design for an experiment at the International Linear Collider. It presents detailed discussions of each of SiD's various subsystems, an overview of the full GEANT4 description of SiD, the status of newly developed tracking and calorimeter reconstruction algorithms, studies of subsystem performance based on these tools, results of physics benchmarking analyses, an estimate of the cost of the detector, and an assessment of the detector R and D needed to provide the technical basis for an optimised SiD.
Date: April 11, 2012
Creator: Aihara, H.; Burrows, P.; Oreglia, M.; Berger, E. L.; Guarino, V.; Repond, J. et al.
System: The UNT Digital Library
The Lacey Act: Protecting the Environment by Restricting Trade (open access)

The Lacey Act: Protecting the Environment by Restricting Trade

This report looks at the history and applications of the Lacey Act. As it stands now the Act, via a 2008 amendment, allows the U.S. to enforce the laws of other countries as well. One currently proposed legislation would limit application of the law to specific wood products, while another would eliminate any reference to violations of foreign laws and end criminal prosecutions for violating the act.
Date: April 12, 2012
Creator: Alexander, Kristina
System: The UNT Digital Library
Distributed H{sub 2} Supply for Fuel Cell Utility Vehicles Year 6 - Activity 3.5 - Development fo a National Center for Hydrogen Technology (open access)

Distributed H{sub 2} Supply for Fuel Cell Utility Vehicles Year 6 - Activity 3.5 - Development fo a National Center for Hydrogen Technology

The Energy & Environmental Research Center (EERC) has developed a high-pressure hydrogen production system that reforms a liquid organic feedstock and water at operating pressures up to 800 bar (~12,000 psig). The advantages of this system include the elimination of energy-intensive hydrogen compression, a smaller process footprint, and the elimination of gaseous or liquid hydrogen transport. This system could also potentially enable distributed hydrogen production from centralized coal. Processes have been investigated to gasify coal and then convert the syngas into alcohol or alkanes. These alcohols and alkanes could then be easily transported in bulk to distributed high-pressure water-reforming (HPWR)-based systems to deliver hydrogen economically. The intent of this activity was to utilize the EERC’s existing HPWR hydrogen production process, previously designed and constructed in a prior project phase, as a basis to improve operational and production performance of an existing demonstration unit. Parameters to be pursued included higher hydrogen delivery pressure, higher hydrogen production rates, and the ability to refill within a 5-minute time frame.
Date: April 15, 2012
Creator: Almlie, Jay
System: The UNT Digital Library
Development and Demonstration of Energy Savings Perform Contracting Methodologies for Hydroelectric Facilities: Cooperative Research and Development Final Report, CRADA Number CRD-08-309 (open access)

Development and Demonstration of Energy Savings Perform Contracting Methodologies for Hydroelectric Facilities: Cooperative Research and Development Final Report, CRADA Number CRD-08-309

This CRADA explores the opportunities and challenges of funding federal hydro dam refurbishment projects through ESPCs. It assesses legal authorities for rehabilitating dams through ESPCs; roles and responsibilities of each party including the dam owner, Power Marketing Administration (PMA), ESCO, and preference customers; potential contract structure and flow of money; measurement and verification processes; risk and responsibility allocation; and financial viability of projects.
Date: April 1, 2012
Creator: Anderson, K.
System: The UNT Digital Library
The Strategic Petroleum Reserve: Authorization, Operation, and Drawdown Policy (open access)

The Strategic Petroleum Reserve: Authorization, Operation, and Drawdown Policy

This report looks at the history, purpose, and current status of the Strategic Petroleum Reserve.
Date: April 25, 2012
Creator: Andrews, Anthony & Pirog, Robert
System: The UNT Digital Library
The Strategic Petroleum Reserve: Authorization, Operation, and Drawdown Policy (open access)

The Strategic Petroleum Reserve: Authorization, Operation, and Drawdown Policy

This report looks at the history, purpose, and current status of the Strategic Petroleum Reserve.
Date: April 2, 2012
Creator: Andrews, Anthony & Pirog, Robert
System: The UNT Digital Library
European Union Enlargement (open access)

European Union Enlargement

The European Union (EU) has long viewed the enlargement process as an extraordinary opportunity to promote political stability and economic prosperity in Europe. U.S. Administrations and many Members of Congress have long backed EU enlargement, believing that it serves U.S. interests by advancing democracy and economic prosperity throughout the European continent. Some U.S. officials are concerned that "enlargement fatigue" as well as the EU's ongoing financial crisis could hinder EU expansion. The status of EU enlargement and its implications for both the EU itself and U.S.-EU relations may be of interest to the second session of the 112th Congress.
Date: April 4, 2012
Creator: Archick, Kristin
System: The UNT Digital Library
The European Union: Questions and Answers (open access)

The European Union: Questions and Answers

This report provides a brief overview of the European Union (EU), an economic and political partnership between 27 sovereign member states. The report describes the formation of the EU, the three main institutions of the EU, and the EU's relationship with the United States.
Date: April 5, 2012
Creator: Archick, Kristin
System: The UNT Digital Library
Evaluation of Boulder, CO, SmartRegs Ordinance and Better Buildings Program (open access)

Evaluation of Boulder, CO, SmartRegs Ordinance and Better Buildings Program

Under the SmartRegs ordinance in the city of Boulder, Colorado, all rental properties in the city must achieve an energy efficiency level comparable to a HERS Index of approximately 120 points or lower by the year 2019. The City of Boulder received a $12 million grant from the DOE's Better Buildings initiative to create and incentivize their EnergySmart Program. In this report, the Consortium for Advanced Residential Buildings (CARB) describes its work with the program, including energy audits of rental properties, developing training programs for insulators and inspectors, and conducting interviews with property owners.
Date: April 1, 2012
Creator: Arena, L. & Vijayakumar, G.
System: The UNT Digital Library
Western Sahara (open access)

Western Sahara

This report discusses how Morocco and the independence-seeking Popular Front for the Liberation of Saqiat al Hamra and Rio de Oro (Polisario) have been vying for control of the Western Sahara, a former Spanish territory, since the 1970s. The report discusses recent settlement attempts, as well as how the Western Sahara issue has affected Algerian-Moroccan bilaterial relations, Moroccan relations with the African Union, and regional cooperation on economic and security issues. The report also discusses the United States' involvement in and stance on the issue.
Date: April 5, 2012
Creator: Arieff, Alexis
System: The UNT Digital Library
The Lord's Resistance Army: The U.S. Response (open access)

The Lord's Resistance Army: The U.S. Response

A history of the Lord's Resistance Army, which is led by Joseph Kony, and the U.S.A. policies regarding it.
Date: April 11, 2012
Creator: Arieff, Alexis & Ploch, Lauren
System: The UNT Digital Library
Retrospective on the Seniors' Council Tier 1 LDRD portfolio. (open access)

Retrospective on the Seniors' Council Tier 1 LDRD portfolio.

This report describes the Tier 1 LDRD portfolio, administered by the Seniors Council between 2003 and 2011. 73 projects were sponsored over the 9 years of the portfolio at a cost of $10.5 million which includes $1.9M of a special effort in directed innovation targeted at climate change and cyber security. Two of these Tier 1 efforts were the seeds for the Grand Challenge LDRDs in Quantum Computing and Next Generation Photovoltaic conversion. A few LDRDs were terminated early when it appeared clear that the research was not going to succeed. A great many more were successful and led to full Tier 2 LDRDs or direct customer sponsorship. Over a dozen patents are in various stages of prosecution from this work, and one project is being submitted for an R and D 100 award.
Date: April 1, 2012
Creator: Ballard, William Parker
System: The UNT Digital Library
xdamp Version 6 : an IDL-based data and image manipulation program. (open access)

xdamp Version 6 : an IDL-based data and image manipulation program.

The original DAMP (DAta Manipulation Program) was written by Mark Hedemann of Sandia National Laboratories and used the CA-DISSPLA{trademark} (available from Computer Associates International, Inc., Garden City, NY) graphics package as its engine. It was used to plot, modify, and otherwise manipulate the one-dimensional data waveforms (data vs. time) from a wide variety of accelerators. With the waning of CA-DISSPLA and the increasing popularity of Unix(reg sign)-based workstations, a replacement was needed. This package uses the IDL(reg sign) software, available from Research Systems Incorporated, a Xerox company, in Boulder, Colorado, as the engine, and creates a set of widgets to manipulate the data in a manner similar to the original DAMP and earlier versions of xdamp. IDL is currently supported on a wide variety of Unix platforms such as IBM(reg sign) workstations, Hewlett Packard workstations, SUN(reg sign) workstations, Microsoft(reg sign) Windows{trademark} computers, Macintosh(reg sign) computers and Digital Equipment Corporation VMS(reg sign) and Alpha(reg sign) systems. Thus, xdamp is portable across many platforms. We have verified operation, albeit with some minor IDL bugs, on personal computers using Windows 7 and Windows Vista; Unix platforms; and Macintosh computers. Version 6 is an update that uses the IDL Virtual Machine to resolve the …
Date: April 1, 2012
Creator: Ballard, William Parker
System: The UNT Digital Library
Corrugated Pipe as a Beam Dechirper (open access)

Corrugated Pipe as a Beam Dechirper

We have studied the use of a metallic pipe with small corrugations for the purpose of passively dechirping, through its wakefield, a short, intense electron bunch. The corrugated pipe is attractive for this purpose because its wake: (i) has near maximal possible amplitude for a given aperture and (ii) has a relatively large oscillation wave length, even when the aperture is small. We showed how the corrugated structure can satisfy dechirping requirements encountered in the NGLS project at LBNL. We found that a linear chirp of -40 MeV/mm can be induced by an NGLS-like beam, by having it pass through a corrugated, metallic pipe of radius 3 mm, length 8.2 m, and corrugation parameters full depth 450 {mu}m and period 1000 {mu}m. This structure is about 15 times as effective in the role of dechirper as an S-band accelerator structure used passively.
Date: April 20, 2012
Creator: Bane, K. L. F. & Stupakov, G.
System: The UNT Digital Library
Trade Law: An Introduction to Selected International Agreements and U.S. Laws (open access)

Trade Law: An Introduction to Selected International Agreements and U.S. Laws

This report is an introductory overview of the legal framework governing trade-related measures. The agreements and laws selected for discussion are those most commonly implicated by U.S. trade interests, but there are U.S. trade laws and obligations beyond those reviewed in this report.
Date: April 3, 2012
Creator: Barbour, Emily C.
System: The UNT Digital Library
Pacific Northwest National Laboratory Facility Radionuclide Emissions Units and Sampling Systems (open access)

Pacific Northwest National Laboratory Facility Radionuclide Emissions Units and Sampling Systems

Battelle-Pacific Northwest Division operates numerous research and development (R and D) laboratories in Richland, WA, including those associated with Pacific Northwest National Laboratory (PNNL) on the U.S. Department of Energy (DOE)'s Hanford Site and PNNL Site that have the potential for radionuclide air emissions. The National Emission Standard for Hazardous Air Pollutants (NESHAP 40 CFR 61, Subparts H and I) requires an assessment of all emission units that have the potential for radionuclide air emissions. Potential emissions are assessed annually by PNNL staff members. Sampling, monitoring, and other regulatory compliance requirements are designated based upon the potential-to-emit dose criteria found in the regulations. The purpose of this document is to describe the facility radionuclide air emission sampling program and provide current and historical facility emission unit system performance, operation, and design information. For sampled systems, a description of the buildings, exhaust units, control technologies, and sample extraction details is provided for each registered emission unit. Additionally, applicable stack sampler configuration drawings, figures, and photographs are provided. Deregistered emission unit details are provided as necessary for up to 5 years post closure.
Date: April 1, 2012
Creator: Barnett, J. M.; Brown, Jason H. & Walker, Brian A.
System: The UNT Digital Library
MiniGhost : a miniapp for exploring boundary exchange strategies using stencil computations in scientific parallel computing. (open access)

MiniGhost : a miniapp for exploring boundary exchange strategies using stencil computations in scientific parallel computing.

A broad range of scientific computation involves the use of difference stencils. In a parallel computing environment, this computation is typically implemented by decomposing the spacial domain, inducing a 'halo exchange' of process-owned boundary data. This approach adheres to the Bulk Synchronous Parallel (BSP) model. Because commonly available architectures provide strong inter-node bandwidth relative to latency costs, many codes 'bulk up' these messages by aggregating data into a message as a means of reducing the number of messages. A renewed focus on non-traditional architectures and architecture features provides new opportunities for exploring alternatives to this programming approach. In this report we describe miniGhost, a 'miniapp' designed for exploration of the capabilities of current as well as emerging and future architectures within the context of these sorts of applications. MiniGhost joins the suite of miniapps developed as part of the Mantevo project.
Date: April 1, 2012
Creator: Barrett, Richard Frederick; Heroux, Michael Allen & Vaughan, Courtenay Thomas
System: The UNT Digital Library
Ring Walking/Oxidative Addition Reactions for the Controlled Synthesis of Conjugated Polymers (open access)

Ring Walking/Oxidative Addition Reactions for the Controlled Synthesis of Conjugated Polymers

Power conversion efficiencies of plastic solar cells depend strongly on the molecular weight characteristics of the semiconducting polymers used for their fabrication. The synthesis of these materials typically relies on transition metal mediated catalytic reactions. In many instances, the ideal structures cannot be attained because of deficiencies in these reactions, particularly when it comes to being able to achieve high number average molecular weights and narrow molecular weight distributions. Another important conjugated polymer structure of interest is one in which a single functional group is attached at the end group of the chain. Such systems would be ideal for modifying surface properties at interfaces and for labeling biomolecular probes used in fluorescent biosensors. To respond to the challenges above, our efforts have centered on the design of homogenous transition metal complexes that are easy to prepare and effective in carrying out living, or quasi-living, condensative chain polymerization reactions. The key mechanistic challenge for the success of this reaction is to force the insertion of one monomer unit at a time via a process that involves migration of the transition metal-containing fragment to one terminus of the polymer chain. Chain growth characteristics are therefore favored when the metal does not dissociate …
Date: April 3, 2012
Creator: Bazan, Guillermo C
System: The UNT Digital Library
Final Report: Multi-State Sharing Initiative (open access)

Final Report: Multi-State Sharing Initiative

In 2003 a joint effort between the U.S. Department of Homeland Security (DHS) and the U.S. Department of Justice created state and metropolitan intelligence fusion centers. These fusion centers were an effort to share law enforcement, disaster, and terrorism related information and intelligence between state and local jurisdictions and to share terrorism related intelligence between state and local law enforcement agencies and various federal entities. In 2006, DHS commissioned the Oak Ridge National Laboratory to establish and manage a groundbreaking program to assist local, state, and tribal leaders in developing the tools and methods required to anticipate and forestall terrorist events and to enhance disaster response. This program, called the Southeast Region Research Initiative (SERRI), combines science and technology with validated operational approaches to address regionally unique requirements and suggest regional solutions with the potential for national application. In 2009, SERRI sponsored the Multistate Sharing Initiative (MSSI) to assist state and metropolitan intelligence fusion centers with sharing information related to a wider variety of state interests than just terrorism. While these fusion centers have been effective at sharing data across organizations within their respective jurisdictions, their organizational structure makes bilateral communication with federal entities convenient and also allows information to …
Date: April 1, 2012
Creator: Begoli, Edmon; Boehmann, Brant & DeNap, Frank A
System: The UNT Digital Library