A 350 MHz, 200 kW CW, Multiple Beam Inductive Output Tube - Final Report (open access)

A 350 MHz, 200 kW CW, Multiple Beam Inductive Output Tube - Final Report

This program developed a 200 kW CW, 350 MHz, multiple beam inductive output tube (MBIOT) for driving accelerator cavities. The MBIOT operates at 30 kV with a gain of 23 dB. The estimated efficiency is 70%. The device uses seven electron beams, each transmitting 1.4 A of current. The tube is approximately six feet long and weighs approximately 400 lbs. The prototype device will be evaluated as a potential RF source for the Advanced Photon Source at Argonne National Laboratory (ANL). Because of issues related to delivery of the electron guns, it was not possible to complete assembly and test of the MBIOT during the Phase II program. The device is being completed with support from Calabazas Creek Research, Inc., Communications & Power Industries, LLC. and the Naval Surface Weapons Center (NSWC) in Dahlgren, VA. The MBIOT will be initially tested at NSWC before delivery to ANL. The testing at NSWC is scheduled for February 2013.
Date: November 28, 2012
Creator: Ives, R. Lawrece; Collins, George; Read, David Marsden Michael; Eisen, Edward & Takuchi Kamura, Philipp Borchard
Object Type: Report
System: The UNT Digital Library
2012 Annual Report Research Reactor Infrastructure Program (open access)

2012 Annual Report Research Reactor Infrastructure Program

The content of this report is the 2012 Annual Report for the Research Reactor Infrastructure Program.
Date: November 1, 2012
Creator: Morrell, Douglas
Object Type: Report
System: The UNT Digital Library
2013 Plant Lipids Gordon Research Conference and Gordon Research Seminar (January 27-February 1, 2013 - Hotel Galvez, Galveston TX) (open access)

2013 Plant Lipids Gordon Research Conference and Gordon Research Seminar (January 27-February 1, 2013 - Hotel Galvez, Galveston TX)

Presenters will discuss the latest advances in plant and algal lipid metabolism, oil synthesis, lipid signaling, lipid visualization, lipid biotechnology and its applications, the physiological and developmental roles of lipids, and plant lipids in health. Sessions include: Producing Nutritional Lipids; Metabolic biochemistry in the next decade; Triacylglycerols: Metabolism, function, and as a target for engineering; Lipids in Protection, Reproduction, and Development; Genetic and Lipidomic Approaches to Understanding Lipid Metabolism and Signaling; Lipid Signaling in Stress Responses; New Insights on the Path to Triacylglycerols; Membrane Lipid Signaling; Lipid Visualization; Development of Biofuels and Industrial Lipids.
Date: November 1, 2012
Creator: Welti, Ruth
Object Type: Article
System: The UNT Digital Library
2013 Presidential Migratory Bird Stewardship Award Submittal to the Council on the Conservation of Migratory Birds (open access)

2013 Presidential Migratory Bird Stewardship Award Submittal to the Council on the Conservation of Migratory Birds

None
Date: November 9, 2012
Creator: Woollett, J S
Object Type: Report
System: The UNT Digital Library
2169 steel waveform experiments. (open access)

2169 steel waveform experiments.

In support of LLNL efforts to develop multiscale models of a variety of materials, we have performed a set of eight gas gun impact experiments on 2169 steel (21% Cr, 6% Ni, 9% Mn, balance predominantly Fe). These experiments provided carefully controlled shock, reshock and release velocimetry data, with initial shock stresses ranging from 10 to 50 GPa (particle velocities from 0.25 to 1.05 km/s). Both windowed and free-surface measurements were included in this experiment set to increase the utility of the data set, as were samples ranging in thickness from 1 to 5 mm. Target physical phenomena included the elastic/plastic transition (Hugoniot elastic limit), the Hugoniot, any phase transition phenomena, and the release path (windowed and free-surface). The Hugoniot was found to be nearly linear, with no indications of the Fe<U+F061>-<U+F065>phase transition. Releases were non-hysteretic, and relatively consistent between 3- and 5-mm-thick samples (the 3 mm samples giving slightly lower wavespeeds on release). Reshock tests with explosively welded impactors produced clean results; those with glue bonds showed transient releases prior to the arrival of the reshock, reducing their usefulness for deriving strength information. The free-surface samples, which were steps on a single piece of steel, showed lower wavespeeds for …
Date: November 1, 2012
Creator: Furnish, Michael David; Alexander, C. Scott; Reinhart, William Dodd & Brown, Justin L.
Object Type: Report
System: The UNT Digital Library
3DPDF: Open Source Solutions for Incorporating 3D Information in PDF Files (open access)

3DPDF: Open Source Solutions for Incorporating 3D Information in PDF Files

None
Date: November 29, 2012
Creator: Graf, Norman A.
Object Type: Article
System: The UNT Digital Library
Adaptive Sampling using Support Vector Machines (open access)

Adaptive Sampling using Support Vector Machines

Reliability/safety analysis of stochastic dynamic systems (e.g., nuclear power plants, airplanes, chemical plants) is currently performed through a combination of Event-Tress and Fault-Trees. However, these conventional methods suffer from certain drawbacks: • Timing of events is not explicitly modeled • Ordering of events is preset by the analyst • The modeling of complex accident scenarios is driven by expert-judgment For these reasons, there is currently an increasing interest into the development of dynamic PRA methodologies since they can be used to address the deficiencies of conventional methods listed above.
Date: November 1, 2012
Creator: Mandelli, D. & Smith, C.
Object Type: Article
System: The UNT Digital Library
Adjustable Speed Drive Part-Load Efficiency, Motor Systems Tip Sheet #11 (Fact Sheet) (open access)

Adjustable Speed Drive Part-Load Efficiency, Motor Systems Tip Sheet #11 (Fact Sheet)

Motor tip sheet for the Advanced Manufacturing Office.
Date: November 1, 2012
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Advanced Fuels Campaign 2012 Accomplishments (open access)

Advanced Fuels Campaign 2012 Accomplishments

The Advanced Fuels Campaign (AFC) under the Fuel Cycle Research and Development (FCRD) program is responsible for developing fuels technologies to support the various fuel cycle options defined in the DOE Nuclear Energy Research and Development Roadmap, Report to Congress, April 2010. The fiscal year 2012 (FY 2012) accomplishments are highlighted below. Kemal Pasamehmetoglu is the National Technical Director for AFC.
Date: November 1, 2012
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Advanced inactive materials for improved lithium-ion battery safety. (open access)

Advanced inactive materials for improved lithium-ion battery safety.

None
Date: November 1, 2012
Creator: Orendorff, Christopher J.; Nagasubramanian, Ganesan; Lambert, Timothy N.; Fenton, Kyle Ross; Apblett, Christopher Alan; Shaddix, Christopher R. et al.
Object Type: Report
System: The UNT Digital Library
Advancing Residential Retrofits in the Mixed Humid Climate to Achieve Deep Energy Savings: Final Report on Knoxville, TN Homes (open access)

Advancing Residential Retrofits in the Mixed Humid Climate to Achieve Deep Energy Savings: Final Report on Knoxville, TN Homes

This is a final report of the Advancing Residential Retrofits in the Mixed Humid Climate to Achieve Deep Energy Savings.
Date: November 1, 2012
Creator: Boudreaux, Philip R.; Biswas, Kaushik & Jackson, Roderick K.
Object Type: Report
System: The UNT Digital Library
[Aerial Photo of a Site in New York] (open access)

[Aerial Photo of a Site in New York]

This report provides a review and an analysis of potential environmental justice areas that could be affected by the New York State Electric & Gas (NYSEG) compress air energy storage (CAES) project and identifies existing environmental burden conditions on the area and evaluates additional burden of any significant adverse environmental impact. The review assesses the socioeconomic and demographic conditions of the area surrounding the proposed CAES facility in Schuyler County, New York. Schuyler County is one of 62 counties in New York. Schuyler County’s 2010 population of 18,343 makes it one of the least populated counties in the State (U.S. Census Bureau, 2010). This report was prepared for WorleyParsons by ERM and describes the study area investigated, methods and criteria used to evaluate this area, and the findings and conclusions from the evaluation.
Date: November 30, 2012
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Analysis of Microbial Activity Under a Supercritical CO{sub 2} Atmosphere (open access)

Analysis of Microbial Activity Under a Supercritical CO{sub 2} Atmosphere

Because the extent and impact of microbial activity in deep saline aquifers during geologic sequestration is unknown, the objectives of this proposal were to: (1) characterize the growth requirements and optima of a biofilm-producing supercritical CO{sub 2}-tolerant microbial consortium (labeled MIT0212) isolated from hydrocarbons recovered from the Frio Ridge, TX carbon sequestration site; (2) evaluate the ability of this consortium to grow under simulated reservoir conditions associated with supercritical CO{sub 2} injection; (3) isolate and characterize individual microbial strains from this consortium; and (4) investigate the mechanisms of supercritical CO{sub 2} tolerance in isolated strains and the consortium through genome-enabled studies. Molecular analysis of genetic diversity in the consortium MIT0212 revealed a predominance of sequences closely related to species of the spore-forming genus Bacillus. Strain MIT0214 was isolated from this consortium and characterized by physiological profiling and genomic analysis. We have shown that the strain MIT0214 is an aerobic spore-former and capable of facultative anaerobic growth under both reducing N{sub 2} and CO{sub 2} atmospheres by fermentation and possibly anaerobic respiration. Strain MIT0214 is best adapted to anaerobic growth at pressures of 1 atm but is able to growth at elevated pressures After 1 week growth was observed at pressures …
Date: November 30, 2012
Creator: Thompson, Janelle
Object Type: Report
System: The UNT Digital Library
Analysis of Potential Leakage Pathways and Mineralization within Caprocks for Geologic Storage of CO(sub 2} (open access)

Analysis of Potential Leakage Pathways and Mineralization within Caprocks for Geologic Storage of CO(sub 2}

We used a multifaceted approach to investigate the nature of caprocks above, and the interface between, reservoir-­‐quality rocks that might serve as targets for carbon storage. Fieldwork in southeastern Utah examined the regional-­‐ to m-­‐scale nature of faults and fractures across the sedimentiological interfaces. We also used microscopic analyses and mechanical modeling to examine the question as to how the contacts between units interact, and how fractures may allow fluids to move from reservoirs to caprock. Regional-­‐scale analyses using ASTER data enabled us to identify location of alteration, which led to site-­‐specific studies of deformation and fluid flow. In the Jurassic Carmel Formation, a seal for the Navajo Sandstone, we evaluated mesoscale variability in fracture density and morphology and variability in elastic moduli in the Jurassic Carmel Formation, a proposed seal to the underlying Navajo Sandstone for CO{sub 2} geosequestration. By combining mechano-­‐stratigraphic outcrop observations with elastic moduli derived from wireline log data, we characterize the variability in fracture pattern and morphology with the observed variability in rock strength within this heterolithic top seal. Outcrop inventories of discontinuities show fracture densities decrease as bed thickness increases and fracture propagation morphology across lithologic interfaces vary with changing interface type. Dynamic elastic …
Date: November 30, 2012
Creator: Evans, James
Object Type: Report
System: The UNT Digital Library
Analytical Plans Supporting The Sludge Batch 8 Glass Variability Study Being Conducted By Energysolutions And Cua's Vitreous State Laboratory (open access)

Analytical Plans Supporting The Sludge Batch 8 Glass Variability Study Being Conducted By Energysolutions And Cua's Vitreous State Laboratory

EnergySolutions (ES) and its partner, the Vitreous State Laboratory (VSL) of The Catholic University of America (CUA), are to provide engineering and technical services support to Savannah River Remediation, LLC (SRR) for ongoing operation of the Defense Waste Processing Facility (DWPF) flowsheet as well as for modifications to improve overall plant performance. SRR has requested via a statement of work that ES/VSL conduct a glass variability study (VS) for Sludge Batch 8. SRR issued a technical task request (TTR) asking that the Savannah River National Laboratory (SRNL) provide planning and data reduction support for the ES/VSL effort. This document provides two analytical plans for use by ES/VSL: one plan is to guide the measurement of the chemical composition of the study glasses while the second is to guide the measurement of the durability of the study glasses. The measurements generated by ES/VSL are to be provided to SRNL for data reduction and evaluation. SRNL is to review the results of its evaluation with ES/VSL and SRR. The results will subsequently be incorporated into a joint report with ES/VSL as a deliverable to SRR to support the processing of SB8 at DWPF.
Date: November 26, 2012
Creator: Edwards, T. B. & Peeler, D. K.
Object Type: Report
System: The UNT Digital Library
APPLICATION OF NEURAL NETWORK ALGORITHMS FOR BPM LINEARIZATION (open access)

APPLICATION OF NEURAL NETWORK ALGORITHMS FOR BPM LINEARIZATION

Stripline BPM sensors contain inherent non-linearities, as a result of field distortions from the pickup elements. Many methods have been devised to facilitate corrections, often employing polynomial fitting. The cost of computation makes real-time correction difficult, particulalry when integer math is utilized. The application of neural-network technology, particularly the multi-layer perceptron algorithm, is proposed as an efficient alternative for electrode linearization. A process of supervised learning is initially used to determine the weighting coefficients, which are subsequently applied to the incoming electrode data. A non-linear layer, known as an “activation layer,” is responsible for the removal of saturation effects. Implementation of a perceptron in an FPGA-based software-defined radio (SDR) is presented, along with performance comparisons. In addition, efficient calculation of the sigmoidal activation function via the CORDIC algorithm is presented.
Date: November 1, 2012
Creator: Musson, John C.; Seaton, Chad; Spata, Mike F. & Yan, Jianxun
Object Type: Article
System: The UNT Digital Library
ARM Climate Research Facility Quarterly Value-Added Product Report Fourth Quarter: July 1–September 30, 2012 (open access)

ARM Climate Research Facility Quarterly Value-Added Product Report Fourth Quarter: July 1–September 30, 2012

The purpose of this report is to provide a concise status update for value-added products (VAP) implemented by the Atmospheric Radiation Measurement (ARM) Climate Research Facility. The report is divided into the following sections: (1) new VAPs for which development has begun, (2) progress on existing VAPs, (3) future VAPs that have been recently approved, (4) other work that leads to a VAP, and (5) top requested VAPs from the archive.
Date: November 13, 2012
Creator: Sivaraman, C.
Object Type: Text
System: The UNT Digital Library
Assessing the Economic Value and Optimal Structure of Large-scale Energy Storage (open access)

Assessing the Economic Value and Optimal Structure of Large-scale Energy Storage

None
Date: November 7, 2012
Creator: Lamont, A
Object Type: Report
System: The UNT Digital Library
Avoid Nuisance Tripping with Premium Efficiency Motors, Motor Systems Tip Sheet #6 (Fact Sheet) (open access)

Avoid Nuisance Tripping with Premium Efficiency Motors, Motor Systems Tip Sheet #6 (Fact Sheet)

Motor tip sheet for the Advanced Manufacturing Office.
Date: November 1, 2012
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Award ER25844: Minimizing System Noise Effects for Extreme-Scale Scientific Simulation Through Function Delegation (open access)

Award ER25844: Minimizing System Noise Effects for Extreme-Scale Scientific Simulation Through Function Delegation

In software running on distributed computing clusters, time spent on communication between nodes in the cluster can be a significant portion of the overall computation time; background operating system tasks and other computational �noise� on the nodes of the system can have a significant impact on the amount of time this communication takes, especially on large systems. The research completed in this period has improved understanding of when such noise will have a significant impact. Specifically, it was demonstrated that not just noise on the nodes, but also noise on the network between nodes can have a significant impact on computation time. It was also demonstrated that noise patterns matter more than noise intensity: very regular noise can cause less disruption than lighter (on average) but less regular noise. It was also demonstrated that the effect of noise is more prominent as the speed of the network between nodes is increased. Furthermore, a tracing tool, Netgauge, was improved via our work, and a system simulator, LogGOPSim, was developed; they can be used by application developers to improve performance of their program and by system designers to mitigate the effects of noise by adjusting the noise characteristics of the operating system. …
Date: November 20, 2012
Creator: Lumsdaine, Andrew
Object Type: Report
System: The UNT Digital Library
Beam Dynamics Simulations for the Low-Energy Magnetic Bunch Compressor at ASTA (open access)

Beam Dynamics Simulations for the Low-Energy Magnetic Bunch Compressor at ASTA

None
Date: November 1, 2012
Creator: Prokop, C. R.; Piot, P. & Church, M.
Object Type: Report
System: The UNT Digital Library
Benchmarking Non-Hardware Balance of System (Soft) Costs for U.S. Photovoltaic Systems Using a Data-Driven Analysis from PV Installer Survey Results (open access)

Benchmarking Non-Hardware Balance of System (Soft) Costs for U.S. Photovoltaic Systems Using a Data-Driven Analysis from PV Installer Survey Results

This report presents results from the first U.S. Department of Energy (DOE) sponsored, bottom-up data-collection and analysis of non-hardware balance-of-system costs--often referred to as 'business process' or 'soft' costs--for residential and commercial photovoltaic (PV) systems.
Date: November 1, 2012
Creator: Ardani, K.; Barbose, G.; Margolis, R.; Wiser, R.; Feldman, D. & Ong, S.
Object Type: Report
System: The UNT Digital Library
Biological and Environmental Research: Climate and Environmental Sciences Division: U.S./European Workshop on Climate Change Challenges and Observations (open access)

Biological and Environmental Research: Climate and Environmental Sciences Division: U.S./European Workshop on Climate Change Challenges and Observations

The workshop aimed to identify outstanding climate change science questions and the observational strategies for addressing them. The scientific focus was clouds, aerosols, and precipitation, and the required ground- and aerial-based observations. The workshop findings will be useful input for setting priorities within the Department of Energy (DOE) and the participating European centers. This joint workshop was envisioned as the first step in enhancing the collaboration among these climate research activities needed to better serve the science community.
Date: November 8, 2012
Creator: Mather, James; McCord, Raymond; Sisterson, Doug & Voyles, Jimmy
Object Type: Report
System: The UNT Digital Library
Biomass Gasification Technology Assessment: Consolidated Report (open access)

Biomass Gasification Technology Assessment: Consolidated Report

Harris Group Inc. (HGI) was commissioned by the National Renewable Energy Laboratory to assess gasification and tar reforming technologies. Specifically, the assessments focused on gasification and tar reforming technologies that are capable of producing a syngas suitable for further treatment and conversion to liquid fuels. HGI gathered sufficient information to analyze three gasification and tar reforming systems. This report summarizes the equipment, general arrangement of the equipment, operating characteristics, and operating severity for each technology. The order of magnitude capital cost estimates are supported by a basis-of-estimate write-up, which is also included in this report. The report also includes Microsoft Excel workbook models, which can be used to design and price the systems. The models can be used to analyze various operating capacities and pressures. Each model produces a material balance, equipment list, capital cost estimate, equipment drawings and preliminary general arrangement drawings. Example outputs of each model are included in the Appendices.
Date: November 1, 2012
Creator: Worley, M. & Yale, J.
Object Type: Report
System: The UNT Digital Library