300 Area VOC Program Slug Test Characterization Results for Selected Test/Depth Intervals for Wells 399-2-5, 399-3-22, and 399-4-14 (open access)

300 Area VOC Program Slug Test Characterization Results for Selected Test/Depth Intervals for Wells 399-2-5, 399-3-22, and 399-4-14

Multiple, stress-level slug tests were performed at selected test/depth intervals within wells 399-2-5, 399-3-22, and 399-4-14 as part of the 300 Area volatile organic compound characterization program at the Hanford Site in Washington State. The temporary test screen lengths were characterized as the boreholes were advanced to their final drill depths and before their completion as monitor-well facilities. Following well completion, slug tests were performed in the final, completed well-screen sections. The objectives of the slug tests were to provide the vertical distribution of hydraulic conductivity with depth at these locations and to support selection of the final well screen-depth interval for each of these monitor-well facilities.
Date: March 1, 2008
Creator: Newcomer, Darrell R.
Object Type: Report
System: The UNT Digital Library
2007 Status of Manufacturing: Polymer Electrolyte Membrane (PEM) Fuel Cells (open access)

2007 Status of Manufacturing: Polymer Electrolyte Membrane (PEM) Fuel Cells

In this document we assess the North American industry's current ability to manufacture polymer electrolyte membrane (PEM) fuel cells.
Date: March 1, 2008
Creator: Wheeler, D. & Sverdrup, G.
Object Type: Report
System: The UNT Digital Library
ACRF Ingest Software Status: New, Current, and Future - March 2008 (open access)

ACRF Ingest Software Status: New, Current, and Future - March 2008

The purpose of this report is to provide status of the ingest software used to process instrument data for the Atmospheric Radiation Measurement (ARM) Climate Research Facility (ACRF). The report is divided into four sections: (1) news about ingests currently under development, (2) current production ingests, (3) future ingest development plans, and (4) information on retired ingests. Please note that datastreams beginning in “xxx” indicate cases where ingests run at multiple ACRF sites, which results in a datastream(s) for each location.
Date: March 1, 2008
Creator: Koontz, AS; Choudhury, S; Ermold, BD; Keck, NN; Gaustad, KL & Perez, RC
Object Type: Report
System: The UNT Digital Library
ACRF Instrumentation Status: New, Current, and Future - February 2008 (open access)

ACRF Instrumentation Status: New, Current, and Future - February 2008

The purpose of this report is to provide a concise but comprehensive overview of Atmospheric Radiation Measurement Climate Research Facility instrumentation status. The report is divided into the following four sections: (1) new instrumentation in the process of being acquired and deployed, (2) existing instrumentation and progress on improvements or upgrades, (3) proposed future instrumentation, and (4) Small Business Innovation Research instrument development.
Date: March 1, 2008
Creator: Voyles, J. W.
Object Type: Report
System: The UNT Digital Library
Activated Carbon Composites for Air Separation (open access)

Activated Carbon Composites for Air Separation

In continuation of the development of composite materials for air separation based on molecular sieving properties and magnetic fields effects, several molecular sieve materials were tested in a flow system, and the effects of temperature, flow conditions, and magnetic fields were investigated. New carbon materials adsorbents, with and without pre-loaded super-paramagnetic nanoparticles of Fe3O4 were synthesized; all materials were packed in chromatographic type columns which were placed between the poles of a high intensity, water-cooled, magnet (1.5 Tesla). In order to verify the existence of magnetodesorption effect, separation tests were conducted by injecting controlled volumes of air in a flow of inert gas, while the magnetic field was switched on and off. Gas composition downstream the column was analyzed by gas chromatography and by mass spectrometry. Under the conditions employed, the tests confirmed that N2 - O2 separation occurred at various degrees, depending on material's intrinsic properties, temperature and flow rate. The effect of magnetic fields, reported previously for static conditions, was not confirmed in the flow system. The best separation was obtained for zeolite 13X at sub-ambient temperatures. Future directions for the project include evaluation of a combined system, comprising carbon and zeolite molecular sieves, and testing the effect …
Date: March 1, 2008
Creator: Contescu, Cristian I; Baker, Frederick S; Tsouris, Costas & McFarlane, Joanna
Object Type: Report
System: The UNT Digital Library
Addendum to Guarantee Testing Results from the Greenidge Multi-Pollutant Control Project: Additiona NH3, NOx, and CO Testing Results (open access)

Addendum to Guarantee Testing Results from the Greenidge Multi-Pollutant Control Project: Additiona NH3, NOx, and CO Testing Results

On March 28-30 and May 1-4, 2007, CONSOL Energy Inc. Research & Development (CONSOL R&D) performed flue gas sampling at AES Greenidge to verify the performance of the multi-pollutant control system recently installed by Babcock Power Environmental Inc. (BPEI) on the 107-MW Unit 4 (Boiler 6). The multi-pollutant control system includes combustion modifications and a hybrid selective non-catalytic reduction (SNCR)/in-duct selective catalytic reduction (SCR) system to reduce NO{sub x} emissions, followed by a Turbosorp{reg_sign} circulating fluidized bed dry scrubber system and baghouse to reduce emissions of SO{sub 2}, SO{sub 3}, HCl, HF, and particulate matter. Mercury removal is provided via the co-benefits afforded by the in-duct SCR, dry scrubber, and baghouse and by injection of activated carbon upstream of the scrubber, as required. The testing in March and May demonstrated that the multi-pollutant control system attained its performance targets for NO{sub x} emissions, SO{sub 2} removal efficiency, acid gas (SO{sub 3}, HCl, and HF) removal efficiency, and mercury removal efficiency. However, the ammonia slip measured between the SCR outlet and air heater inlet was consistently greater than the guarantee of 2 ppmvd {at} 3% O{sub 2}. As a result, additional testing was performed on May 30-June 1 and on June …
Date: March 1, 2008
Creator: Connell, Daniel P. & Locke, James E.
Object Type: Report
System: The UNT Digital Library
Advanced Control Design for Wind Turbines; Part I: Control Design, Implementation, and Initial Tests (open access)

Advanced Control Design for Wind Turbines; Part I: Control Design, Implementation, and Initial Tests

The purpose of this report is to give wind turbine engineers information and examples of the design, testing through simulation, field implementation, and field testing of advanced wind turbine controls.
Date: March 1, 2008
Creator: Wright, A. D. & Fingersh, L. J.
Object Type: Report
System: The UNT Digital Library
Advanced Fuel Cycle Cost Basis (open access)

Advanced Fuel Cycle Cost Basis

This report, commissioned by the U.S. Department of Energy (DOE), provides a comprehensive set of cost data supporting a cost analysis for the relative economic comparison of options for use in the Advanced Fuel Cycle Initiative (AFCI) Program. The report describes the AFCI cost basis development process, reference information on AFCI cost modules, a procedure for estimating fuel cycle costs, economic evaluation guidelines, and a discussion on the integration of cost data into economic computer models. This report contains reference cost data for 25 cost modules—23 fuel cycle cost modules and 2 reactor modules. The cost modules were developed in the areas of natural uranium mining and milling, conversion, enrichment, depleted uranium disposition, fuel fabrication, interim spent fuel storage, reprocessing, waste conditioning, spent nuclear fuel (SNF) packaging, long-term monitored retrievable storage, near surface disposal of low-level waste (LLW), geologic repository and other disposal concepts, and transportation processes for nuclear fuel, LLW, SNF, transuranic, and high-level waste.
Date: March 1, 2008
Creator: Shropshire, D. E.; Williams, K. A.; Boore, W. B.; Smith, J. D.; Dixon, B. W.; Dunzik Gougar, M. et al.
Object Type: Report
System: The UNT Digital Library
Advanced Power Electronic Interfaces for Distributed Energy Systems Part 1: Systems and Topologies (open access)

Advanced Power Electronic Interfaces for Distributed Energy Systems Part 1: Systems and Topologies

This report summarizes power electronic interfaces for DE applications and the topologies needed for advanced power electronic interfaces. It focuses on photovoltaic, wind, microturbine, fuel cell, internal combustion engine, battery storage, and flywheel storage systems.
Date: March 1, 2008
Creator: Kramer, W.; Chakraborty, S.; Kroposki, B. & Thomas, H.
Object Type: Report
System: The UNT Digital Library
Analysis of Fracture in Cores from the Tuff Confining Unit beneath Yucca Flat, Nevada Test Site (open access)

Analysis of Fracture in Cores from the Tuff Confining Unit beneath Yucca Flat, Nevada Test Site

The role fractures play in the movement of groundwater through zeolitic tuffs that form the tuff confining unit (TCU) beneath Yucca Flat, Nevada Test Site, is poorly known. This is an important uncertainty, because beneath most of Yucca Flat the TCU lies between the sources of radionuclide contaminants produced by historic underground nuclear testing and the regional carbonate aquifer. To gain a better understanding of the role fractures play in the movement of groundwater and radionuclides through the TCU beneath Yucca Flat, a fracture analysis focusing on hydraulic properties was performed on conventional cores from four vertical exploratory holes in Area 7 of Yucca Flat that fully penetrate the TCU. The results of this study indicate that the TCU is poorly fractured. Fracture density for all fractures is 0.27 fractures per vertical meter of core. For open fractures, or those observed to have some aperture, the density is only 0.06 fractures per vertical meter of core. Open fractures are characterized by apertures ranging from 0.1 to 10 millimeter, and averaging 1.1 millimeter. Aperture typically occurs as small isolated openings along the fracture, accounting for only 10 percent of the fracture volume, the rest being completely healed by secondary minerals. Zeolite …
Date: March 1, 2008
Creator: Prothro, Lance
Object Type: Report
System: The UNT Digital Library
Analyzing Options for Airborne Emergency Wireless Communications (open access)

Analyzing Options for Airborne Emergency Wireless Communications

In the event of large-scale natural or manmade catastrophic events, access to reliable and enduring commercial communication systems is critical. Hurricane Katrina provided a recent example of the need to ensure communications during a national emergency. To ensure that communication demands are met during these critical times, Idaho National Laboratory (INL) under the guidance of United States Strategic Command has studied infrastructure issues, concerns, and vulnerabilities associated with an airborne wireless communications capability. Such a capability could provide emergency wireless communications until public/commercial nodes can be systematically restored. This report focuses on the airborne cellular restoration concept; analyzing basic infrastructure requirements; identifying related infrastructure issues, concerns, and vulnerabilities and offers recommended solutions.
Date: March 1, 2008
Creator: Schmitt, Michael; Deaton, Juan; Papke, Curt & Cherry, Shane
Object Type: Report
System: The UNT Digital Library
The application of taylor weighting, digital phase shifters, and digital attenuators to phased-array antennas. (open access)

The application of taylor weighting, digital phase shifters, and digital attenuators to phased-array antennas.

Application of Taylor weighting (taper) to an antenna aperture can achieve low peak sidelobes, but combining the Taylor weighting with quantized attenuators and phase shifters at each radiating element will impact the performance of a phased-array antenna. An examination of array performance is undertaken from the simple point of view of the characteristics of the array factor. Design rules and guidelines for determining the Taylor-weighting parameters, the number of bits required for the digital phase shifter, and the dynamic range and number of bits required for the digital attenuator are developed. For a radar application, when each element is fed directly from a transmit/receive module, the total power radiated by the array will be reduced as a result of the taper. Consequently, the issue of whether to apply the taper on both transmit and receive configurations, or only on the receive configuration is examined with respect to two-way sidelobe performance.
Date: March 1, 2008
Creator: Brock, Billy C.
Object Type: Report
System: The UNT Digital Library
Atmospheric Properties from the 2006 Niamey Deployment and Climate Simulation with a Geodesic Grid Coupled Climate Model (open access)

Atmospheric Properties from the 2006 Niamey Deployment and Climate Simulation with a Geodesic Grid Coupled Climate Model

In 2008, the Atmospheric Radiation Measurement (ARM) Program and the Climate Change Prediction Program (CCPP) have been asked to produce joint science metrics. For CCPP, the metrics will deal with a decade-long control simulation using geodesic grid-coupled climate model. For ARM, the metrics will deal with observations associated with the 2006 deployment of the ARM Mobile Facility (AMF) to Niamey, Niger. Specifically, ARM has been asked to deliver data products for Niamey that describe cloud, aerosol, and dust properties.
Date: March 1, 2008
Creator: Jensen, M; Johnson, K; Mather, J & Randall, D
Object Type: Report
System: The UNT Digital Library
An Audit Report on Agencies' and Higher Education Institutions' Background Check Procedures (open access)

An Audit Report on Agencies' and Higher Education Institutions' Background Check Procedures

Report of the Texas State Auditor's Office related to the authorization of the majority of state agencies and higher education institutions to conduct background checks, the procedures for reporting on these checks, and the determination of whether other agencies institutions should be conducting background checks.
Date: March 2008
Creator: Texas. Office of the State Auditor.
Object Type: Report
System: The Portal to Texas History
An Audit Report on Performance Measures at the Board of Chiropractic Examiners (open access)

An Audit Report on Performance Measures at the Board of Chiropractic Examiners

Report of the Texas State Auditor's Office related to determining whether the Board of Chiropractic Examiners accurately reports selected key performance measures to ABEST, and has adequate control systems in place over the collecting, calculating and reporting of selected key performance measures.
Date: March 2008
Creator: Texas. Office of the State Auditor.
Object Type: Report
System: The Portal to Texas History
An Audit Report on Performance Measures at the Board of Professional Land Surveying (open access)

An Audit Report on Performance Measures at the Board of Professional Land Surveying

Report of the Texas State Auditor's Office related to determining whether the Board of Professional Land Surveying accurately reported selected key performance measures to ABEST, and has adequate control systems in place over the collecting, calculating, and reporting of selected key performance measures.
Date: March 2008
Creator: Texas. Office of the State Auditor.
Object Type: Report
System: The Portal to Texas History
An Audit Report on Selected Business Functions at the Texas Forest Service (open access)

An Audit Report on Selected Business Functions at the Texas Forest Service

Report of the Texas State Auditor's Office related to determining whether the Texas Forest Service has proper controls to ensure that it follows applicable state laws and agency policies and procedures for selected business functions; specifically, the audit determines whether the Forest Service accounts for emergency responses in accordance with applicable policies and regulations to ensure accuracy, and whether the Forest Service awards, processes expenditures from, and monitors grants to volunteer fire departments in accordance with applicable policies, grant provisions, and regulations.
Date: March 2008
Creator: Texas. Office of the State Auditor.
Object Type: Report
System: The Portal to Texas History
BAE/Orion Hybrid Electric Buses at New York City Transit: A Generational Comparison (Revised) (open access)

BAE/Orion Hybrid Electric Buses at New York City Transit: A Generational Comparison (Revised)

Paper describes the evaluation of hybrid-electric transit buses purchased by New York City Transit (NYCT) in an order group of 200 (Gen II) and compares their performance to those of similar hybrid-electric transit buses purchased by NYCT in an order group of 125 (Gen I).
Date: March 1, 2008
Creator: Barnitt, R.
Object Type: Report
System: The UNT Digital Library
Battery Test Manual For Plug-In Hybrid Electric Ve (open access)

Battery Test Manual For Plug-In Hybrid Electric Ve

This battery test procedure manual was prepared fo
Date: March 1, 2008
Creator: Belt, Jeffrey
Object Type: Report
System: The UNT Digital Library
Biosafety Practices and Emergency Response at the Idaho National Laboratory and Los Alamos National Laboratory (open access)

Biosafety Practices and Emergency Response at the Idaho National Laboratory and Los Alamos National Laboratory

Strict federal regulations govern the possession, use, and transfer of pathogens and toxins with potential to cause harm to the public, either through accidental or deliberate means. Laboratories registered through either the Centers for Disease Control and Prevention (CDC), the U.S. Dept. of Agriculture (USDA), or both, must prepare biosafety, security, and incident response plans, conduct drills or exercises on an annual basis, and update plans accordingly. At the Idaho National Laboratory (INL), biosafety, laboratory, and emergency management staff have been working together for 2 years to satisfy federal and DOE/NNSA requirements. This has been done through the establishment of plans, training, tabletop and walk-through exercises and drills, and coordination with local and regional emergency response personnel. Responding to the release of infectious agents or toxins is challenging, but through familiarization with the nature of the hazardous biological substances or organisms, and integration with laboratory-wide emergency response procedures, credible scenarios are being used to evaluate our ability to protect workers, the public, and the environment from agents we must work with to provide for national biodefense.
Date: March 1, 2008
Creator: Roberto, Frank F. & Matz, Dina M.
Object Type: Article
System: The UNT Digital Library
BOBCAT Personal Radiation Detector Field Test and Evaluation Campaign (open access)

BOBCAT Personal Radiation Detector Field Test and Evaluation Campaign

Following the success of the Anole test of portable detection system, the U.S. Department of Homeland Security (DHS) Domestic Nuclear Detection Office organized a test and evaluation campaign for personal radiation detectors (PRDs), also known as “Pagers.” This test, “Bobcat,” was conducted from July 17 to August 8, 2006, at the Nevada Test Site. The Bobcat test was designed to evaluate the performance of PRDs under various operational scenarios, such as pedestrian surveying, mobile surveying, cargo container screening, and pedestrian chokepoint monitoring. Under these testing scenarios, many operational characteristics of the PRDs, such as gamma and neutron sensitivities, positive detection and false alarm rates, response delay times, minimum detectable activities, and source localization errors, were analyzed. This paper will present the design, execution, and methodologies used to test this equipment for the DHS.
Date: March 1, 2008
Creator: Hodge, Chris
Object Type: Article
System: The UNT Digital Library
Border Business Indicators, Volume 32, Number 3, March 2008 (open access)

Border Business Indicators, Volume 32, Number 3, March 2008

Monthly publication documenting statistics related to economic information in the Mexico-Texas border areas including types of border crossings, employment, customs revenues, and other related data.
Date: March 2008
Creator: Texas Center for Border Economic and Enterprise Development
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Calculation of asymptotic and RMS kicks due to higher order modes in the 3.9-GHz cavity (open access)

Calculation of asymptotic and RMS kicks due to higher order modes in the 3.9-GHz cavity

FLASH plans to use a 'third harmonic' (3.9 GHz) superconducting cavity to compensate nonlinear distortions of the longitudinal phase space due to the sinusoidal curvature of the cavity voltage of the TESLA 1.3 GHz cavities. Higher order modes (HOMs) in the 3.9 GHz have a significant impact on the dynamics of the electron bunches in a long bunch train. Kicks due to dipole modes can be enhanced along the bunch train depending on the frequency and Q-value of the modes. The enhancement factor for a constant beam offset with respect to the cavity has been calculated. A simple Monte Carlo model of these effects, allowing for scatter in HOM frequencies due to manufacturing variances, has also been implemented and results for both FLASH and for an XFEL-like configuration are presented.
Date: March 1, 2008
Creator: Bellantoni, L.; Edwards, H. & Wanzenberg, R.
Object Type: Report
System: The UNT Digital Library
CHALLENGES IN GENERATING HYDROGEN BY HIGH TEMPERATURE ELECTROLYSIS USING SOLID OXIDE CELLS (open access)

CHALLENGES IN GENERATING HYDROGEN BY HIGH TEMPERATURE ELECTROLYSIS USING SOLID OXIDE CELLS

Idaho National Laboratory’s (INL) high temperature electrolysis research to generate hydrogen using solid oxide electrolysis cells is presented in this paper. The research results reported here have been obtained in a laboratory-scale apparatus. These results and common scale-up issues also indicate that for the technology to be successful in a large industrial setting, several technical, economical, and manufacturing issues have to be resolved. Some of the issues related to solid oxide cells are stack design and performance optimization, identification and evaluation of cell performance degradation parameters and processes, integrity and reliability of the solid oxide electrolysis (SOEC) stacks, life-time prediction and extension of the SOEC stack, and cost reduction and economic manufacturing of the SOEC stacks. Besides the solid oxide cells, balance of the hydrogen generating plant also needs significant development. These issues are process and ohmic heat source needed for maintaining the reaction temperature (~830°C), high temperature heat exchangers and recuperators, equal distribution of the reactants into each cell, system analysis of hydrogen and associated energy generating plant, and cost optimization. An economic analysis of this plant was performed using the standardized H2A Analysis Methodology developed by the Department of Energy (DOE) Hydrogen Program, and using realistic financial and …
Date: March 1, 2008
Creator: Sohal, M. S.; O'Brien, J. E.; Stoots, C. M.; McKellar, M. G.; Herring, J. S. & Harvego, E. A.
Object Type: Article
System: The UNT Digital Library