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Defense Infrastructure: DOD Can Improve Its Response to Environmental Exposures on Military Installations (open access)

Defense Infrastructure: DOD Can Improve Its Response to Environmental Exposures on Military Installations

A letter report issued by the Government Accountability Office with an abstract that begins ""
Date: May 1, 2012
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
The Greensheet (Houston, Tex.), Vol. 43, No. 157, Ed. 1 Tuesday, May 1, 2012 (open access)

The Greensheet (Houston, Tex.), Vol. 43, No. 157, Ed. 1 Tuesday, May 1, 2012

Free weekly newspaper that includes business and classified advertising.
Date: May 1, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 43, No. 158, Ed. 1 Tuesday, May 1, 2012 (open access)

The Greensheet (Houston, Tex.), Vol. 43, No. 158, Ed. 1 Tuesday, May 1, 2012

Free weekly newspaper that includes business and classified advertising.
Date: May 1, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Community Development Block Grants: Funding Issues in the 112th Congress and Recent Funding History (open access)

Community Development Block Grants: Funding Issues in the 112th Congress and Recent Funding History

This report discusses funding Issues in the 112th Congress and Recent Funding History The Administration's FY2012 budget proposes to: (1) increase funding for CDBG formula grants by 10.5% from $3.303 billion appropriated in FY2010 to $3.691 billion; (2) eliminate funding for the Neighborhood Initiative and Economic Development Initiative programs; (3) eliminate funding for Section 107 activities; (4) transfer its Sustainable Communities Initiative to a new stand-alone account; and (5) convert Section 108 loan guarantees to a fee-based program.
Date: May 1, 2012
Creator: Boyd, Eugene
Object Type: Report
System: The UNT Digital Library
The Functional Requirements and Design Basis for Information Barriers (open access)

The Functional Requirements and Design Basis for Information Barriers

This report summarizes the results of the Information Barrier Working Group workshop held at Sandia National Laboratory in Albuquerque, NM, February 2-4, 1999. This workshop was convened to establish the functional requirements associated with warhead radiation signature information barriers, to identify the major design elements of any such system or approach, and to identify a design basis for each of these major elements. Such information forms the general design basis to be used in designing, fabricating, and evaluating the complete integrated systems developed for specific purposes.
Date: May 1, 2012
Creator: Fuller, James L.
Object Type: Report
System: The UNT Digital Library
AGR-1 Thermocouple Data Analysis (open access)

AGR-1 Thermocouple Data Analysis

This report documents an effort to analyze measured and simulated data obtained in the Advanced Gas Reactor (AGR) fuel irradiation test program conducted in the INL's Advanced Test Reactor (ATR) to support the Next Generation Nuclear Plant (NGNP) R&D program. The work follows up on a previous study (Pham and Einerson, 2010), in which statistical analysis methods were applied for AGR-1 thermocouple data qualification. The present work exercises the idea that, while recognizing uncertainties inherent in physics and thermal simulations of the AGR-1 test, results of the numerical simulations can be used in combination with the statistical analysis methods to further improve qualification of measured data. Additionally, the combined analysis of measured and simulation data can generate insights about simulation model uncertainty that can be useful for model improvement. This report also describes an experimental control procedure to maintain fuel target temperature in the future AGR tests using regression relationships that include simulation results. The report is organized into four chapters. Chapter 1 introduces the AGR Fuel Development and Qualification program, AGR-1 test configuration and test procedure, overview of AGR-1 measured data, and overview of physics and thermal simulation, including modeling assumptions and uncertainties. A brief summary of statistical analysis …
Date: May 1, 2012
Creator: Einerson, Jeff
Object Type: Report
System: The UNT Digital Library

Final Results from U.S. FCEV Learning Demonstration

This presentation discusses the objectives of the U.S. DOE Fuel Cell Electric Vehicle Learning Demonstration Project, describes NREL's technology validation approach, and summarizes key technical results from the project.
Date: May 1, 2012
Creator: Wipke, K.; Sprik, S.; Kurtz, J.; Ramsden, T.; Ainscough, C. & Saur, G.
Object Type: Presentation
System: The UNT Digital Library

Targeting Net Zero Energy for Military Installations

Targeting Net Zero Energy for Military Installations in Kaneohe Bay, Hawaii. A net zero energy installation (NZEI) is one that produces as much energy from on-site renewable sources as it consumes. NZEI assessment provides a systematic approach to energy projects.
Date: May 1, 2012
Creator: Burman, K.
Object Type: Presentation
System: The UNT Digital Library
Requirements for Computer Based-Procedures for Nuclear Power Plant Field Operators Results from a Qualitative Study (open access)

Requirements for Computer Based-Procedures for Nuclear Power Plant Field Operators Results from a Qualitative Study

Although computer-based procedures (CBPs) have been investigated as a way to enhance operator performance on procedural tasks in the nuclear industry for almost thirty years, they are not currently widely deployed at United States utilities. One of the barriers to the wide scale deployment of CBPs is the lack of operational experience with CBPs that could serve as a sound basis for justifying the use of CBPs for nuclear utilities. Utilities are hesitant to adopt CBPs because of concern over potential costs of implementation, and concern over regulatory approval. Regulators require a sound technical basis for the use of any procedure at the utilities; without operating experience to support the use CBPs, it is difficult to establish such a technical basis. In an effort to begin the process of developing a technical basis for CBPs, researchers at Idaho National Laboratory are partnering with industry to explore CBPs with the objective of defining requirements for CBPs and developing an industry-wide vision and path forward for the use of CBPs. This paper describes the results from a qualitative study aimed at defining requirements for CBPs to be used by field operators and maintenance technicians.
Date: May 1, 2012
Creator: Blanc, Katya Le & Oxstrand, Johanna
Object Type: Article
System: The UNT Digital Library
Design and Simulation of IOTA - a Novel Concept of Integrable Optics Test Accelerator (open access)

Design and Simulation of IOTA - a Novel Concept of Integrable Optics Test Accelerator

The use of nonlinear lattices with large betatron tune spreads can increase instability and space charge thresholds due to improved Landau damping. Unfortunately, the majority of nonlinear accelerator lattices turn out to be nonintegrable, producing chaotic motion and a complex network of stable and unstable resonances. Recent advances in finding the integrable nonlinear accelerator lattices have led to a proposal to construct at Fermilab a test accelerator with strong nonlinear focusing which avoids resonances and chaotic particle motion. This presentation will outline the main challenges, theoretical design solutions and construction status of the Integrable Optics Test Accelerator (IOTA) underway at Fermilab.
Date: May 1, 2012
Creator: Nagaitsev, S.; Valishev, A.; /Fermilab; Danilov, V.V.; Ridge, /Oak; Shatilov, D.N. et al.
Object Type: Article
System: The UNT Digital Library
Simulation and Experiment of Thermal Fatigue in the CPV Die Attach: Preprint (open access)

Simulation and Experiment of Thermal Fatigue in the CPV Die Attach: Preprint

FEM simulation and accelerated thermal cycling have been performed for the CPV die attach. Trends in fatigue damage accumulation and equivalent test time are explored and found to be most sensitive to temperature ramp rate. Die attach crack growth is measured through cycling and found to be in excellent agreement with simulations of the inelastic strain energy accumulated. Simulations of an entire year of weather data provides for the relative ranking of fatigue damage between four cites as well as their equivalent accelerated test time.
Date: May 1, 2012
Creator: Bosco, N.; Silverman, T. & Kurtz, S.
Object Type: Article
System: The UNT Digital Library
Lorentz Force Compensation for Long Pulses in SRF Cavities (open access)

Lorentz Force Compensation for Long Pulses in SRF Cavities

None
Date: May 1, 2012
Creator: Pischalnikov, Y.; Cancelo, G.; Chase, B.; Crawford, D.; Edstrom, D.; Harms, E. et al.
Object Type: Article
System: The UNT Digital Library
Conditioning and Future Plans for a Multi-purpose 805 MHz Pillbox Cavity for Muon Acceleration (open access)

Conditioning and Future Plans for a Multi-purpose 805 MHz Pillbox Cavity for Muon Acceleration

None
Date: May 1, 2012
Creator: Kazakevich, G.; Flanagan, G.; Johnson, R. P.; Neubauer, M.; Sah, R.; Dudas, A. et al.
Object Type: Article
System: The UNT Digital Library
Kepler constraints on planets near hot Jupiters (open access)

Kepler constraints on planets near hot Jupiters

We present the results of a search for planetary companions orbiting near hot Jupiter planet candidates (Jupiter-size candidates with orbital periods near 3 d) identified in the Kepler data through its sixth quarter of science operations. Special emphasis is given to companions between the 2:1 interior and exterior mean-motion resonances. A photometric transit search excludes companions with sizes ranging from roughly two-thirds to five times the size of the Earth, depending upon the noise properties of the target star. A search for dynamically induced deviations from a constant period (transit timing variations) also shows no significant signals. In contrast, comparison studies of warm Jupiters (with slightly larger orbits) and hot Neptune-size candidates do exhibit signatures of additional companions with these same tests. These differences between hot Jupiters and other planetary systems denote a distinctly different formation or dynamical history.
Date: May 1, 2012
Creator: Steffen, Jason H.; Ragozzine, Darin; Fabrycky, Daniel C.; Carter, Joshua A.; Ford, Eric B.; Holman, Matthew J. et al.
Object Type: Article
System: The UNT Digital Library
A case study of agricultural residue availability and cost for a cellulosic ethanol conversion facility in the Henan province of China (open access)

A case study of agricultural residue availability and cost for a cellulosic ethanol conversion facility in the Henan province of China

A preliminary analysis of the availability and cost of corn stover and wheat straw for the area surrounding a demonstration biorefinery in the Henan Province of China was performed as a case study of potential cooperative analyses of bioenergy feedstocks between researchers and industry in the US and China. Though limited in scope, the purpose of this analysis is to provide insight into some of the issues and challenges of estimating feedstock availability in China and how this relates to analyses of feedstocks in the U.S. Completing this analysis also highlighted the importance of improving communication between U.S. researchers and Chinese collaborators. Understanding the units and terms used in the data provided by Tianguan proved to be a significant challenge. This was further complicated by language barriers between collaborators in the U.S. and China. The Tianguan demonstration biorefinery has a current capacity of 3k tons (1 million gallons) of cellulosic ethanol per year with plans to scale up to 10k tons (3.34 million gallons) per year. Using data provided by Tianguan staff in summer of 2011, the costs and availability of corn stover and wheat straw were estimated. Currently, there are sufficient volumes of wheat straw and corn stover that …
Date: May 1, 2012
Creator: Webb, Erin & Wu, Yun
Object Type: Report
System: The UNT Digital Library
Analysis of Vernier Scans during the PP2PP run in 2009 (pp at 100 GeV/beam) (open access)

Analysis of Vernier Scans during the PP2PP run in 2009 (pp at 100 GeV/beam)

N/A
Date: May 1, 2012
Creator: A., Drees
Object Type: Report
System: The UNT Digital Library
Design of Accumulator and Compressor Rings for the Project-X Based Proton Driver (open access)

Design of Accumulator and Compressor Rings for the Project-X Based Proton Driver

A Muon Collider (MC) and a Neutrino Factory (NF) - which may be considered as a step towards a MC - both require a high-power ({approx}4 MW) proton driver providing short (<1 m r.m.s. length) bunches for muon production. However, the driver repetition rates required for these two machines are different: {approx}15 Hz for MC and {approx}60 Hz for NF. This difference suggests employing two separate rings: one for accumulation of the proton beam from the Project-X linac in a few (e.g. 4) long bunches, the other for bunch compression - one by one for NF or all at a time for MC with simultaneous delivery to the target. The lattice requirements for these two rings are different: the momentum compaction factor in the accumulator ring should be large (and possibly negative) to avoid the microwave instability, while the compressor ring can be nearly isochronous in order to limit the required RF voltage and reduce the dispersion contribution to the beam size. In the present report we consider ring lattice designs which achieve these goals.
Date: May 1, 2012
Creator: Alexahin, Y. & Neuffer, D.
Object Type: Article
System: The UNT Digital Library
Using a Research Simulator for Validating Control Room Modernization Concepts (open access)

Using a Research Simulator for Validating Control Room Modernization Concepts

The Light Water Reactor Sustainability Program is a research, development, and deployment program sponsored by the United States Department of Energy. The program is operated in close collaboration with industry research and development programs to provide the technical foundations for licensing and managing the long-term, safe, and economical operation of nuclear power plants that are currently in operation. Advanced instrumentation and control (I&C) technologies are needed to support the continued safe and reliable production of power from nuclear energy systems during sustained periods of operation up to and beyond their expected licensed lifetime. This requires that new capabilities to achieve process control be developed and eventually implemented in existing nuclear control rooms. It also requires that approaches be developed and proven to achieve sustainability of I&C systems throughout the period of extended operation. Idaho National Laboratory (INL) is working closely with nuclear utilities to develop technologies and solutions to help ensure the safe life extension of current reactors. One of the main areas of focus is control room modernization. Current analog control rooms are growing obsolete, and it is difficult for utilities to maintain them. Using its reconfigurable control room simulator adapted from a training simulator, INL serves as a …
Date: May 1, 2012
Creator: Boring, Ronald L.; Agarwal, Vivek; Persensky, Julius J. & Joe, Jeffrey C.
Object Type: Article
System: The UNT Digital Library
Operating Reserve Reductions from a Proposed Energy Imbalance Market with Wind and Solar Generation in the Western Interconnection (open access)

Operating Reserve Reductions from a Proposed Energy Imbalance Market with Wind and Solar Generation in the Western Interconnection

This paper considers several alternative forms of an energy imbalance market (EIM) proposed in the nonmarket areas of the Western Interconnection. The proposed EIM includes two changes in operating practices that independently reduce variability and increase access to responsive resources: balancing authority cooperation and sub-hourly dispatch. As the penetration of variable generation increases on the power system, additional interest in coordination would likely occur. Several alternative approaches could be used, but consideration of any form of coordinated unit commitment is beyond the scope of this analysis. This report examines the benefits of several possible EIM implementations--both separately and in concert.
Date: May 1, 2012
Creator: King, J.; Kirby, B.; Milligan, M. & Beuning, S.
Object Type: Report
System: The UNT Digital Library

Real-Time Imaging of Plant Cell Wall Structure at Nanometer Scale, with Respect to Cellulase Accessibility and Degradation Kinetics

Presentation on real-time imaging of plant cell wall structure at nanometer scale. Objectives are to develop tools to measure biomass at the nanometer scale; elucidate the molecular bases of biomass deconstruction; and identify factors that affect the conversion efficiency of biomass-to-biofuels.
Date: May 1, 2012
Creator: Ding, S. Y.
Object Type: Presentation
System: The UNT Digital Library
Advanced Outage and Control Center: Strategies for Nuclear Plant Outage Work Status Capabilities (open access)

Advanced Outage and Control Center: Strategies for Nuclear Plant Outage Work Status Capabilities

The research effort is a part of the Light Water Reactor Sustainability (LWRS) Program. LWRS is a research and development program sponsored by the Department of Energy, performed in close collaboration with industry to provide the technical foundations for licensing and managing the long-term, safe and economical operation of current nuclear power plants. The LWRS Program serves to help the US nuclear industry adopt new technologies and engineering solutions that facilitate the continued safe operation of the plants and extension of the current operating licenses. The Outage Control Center (OCC) Pilot Project was directed at carrying out the applied research for development and pilot of technology designed to enhance safe outage and maintenance operations, improve human performance and reliability, increase overall operational efficiency, and improve plant status control. Plant outage management is a high priority concern for the nuclear industry from cost and safety perspectives. Unfortunately, many of the underlying technologies supporting outage control are the same as those used in the 1980’s. They depend heavily upon large teams of staff, multiple work and coordination locations, and manual administrative actions that require large amounts of paper. Previous work in human reliability analysis suggests that many repetitive tasks, including paper work …
Date: May 1, 2012
Creator: Weatherby, Gregory
Object Type: Report
System: The UNT Digital Library
Thomson scattering diagnostic for the measurement of ion species fraction (open access)

Thomson scattering diagnostic for the measurement of ion species fraction

Simultaneous Thomson scattering measurements of collective electron-plasma and ion-acoustic fluctuations have been utilized to determine ion species fraction from laser produced CH plasmas. The CH{sub 2} foil is heated with 10 laser beams, 500 J per beam, at the Omega Laser facility. Thomson scattering measurements are made 4 mm from the foil surface using a 30 J 2{omega} probe laser with a 1 ns pulse length. Using a series of target shots the plasma evolution is measured from 2.5 ns to 9 ns after the rise of the heater beams. Measuring the electron density and temperature from the electron-plasma fluctuations constrains the fit of the two-ion species theoretical form factor for the ion feature such that the ion temperature, plasma flow velocity and ion species fraction are determined. The ion species fraction is determined to an accuracy of {+-}0.06 in species fraction.
Date: May 1, 2012
Creator: Ross, J. S.; Park, H. S.; Amendt, A.; Divol, L.; Kugland, N. L.; Rozmus, W. et al.
Object Type: Article
System: The UNT Digital Library
Strategy Guideline: Transitioning HVAC Companies to Whole House Performance Contractors (open access)

Strategy Guideline: Transitioning HVAC Companies to Whole House Performance Contractors

This report describes the findings from research IBACOS conducted related to heating, ventilation, and air conditioning (HVAC) companies who have made the decision to transition to whole house performance contracting (WHPC).
Date: May 1, 2012
Creator: Burdick, A.
Object Type: Report
System: The UNT Digital Library
MCRENGINE: A Scalable Checkpointing System using Data-Aware Aggregation and Compression (open access)

MCRENGINE: A Scalable Checkpointing System using Data-Aware Aggregation and Compression

None
Date: May 1, 2012
Creator: Islam, T; Mohror, K; Bagchi, S; Moody, A; de Supinski, B & Eigenmann, R
Object Type: Article
System: The UNT Digital Library