Host Event Based Network Monitoring (open access)

Host Event Based Network Monitoring

The purpose of INL’s research on this project is to demonstrate the feasibility of a host event based network monitoring tool and the effects on host performance. Current host based network monitoring tools work on polling which can miss activity if it occurs between polls. Instead of polling, a tool could be developed that makes use of event APIs in the operating system to receive asynchronous notifications of network activity. Analysis and logging of these events will allow the tool to construct the complete real-time and historical network configuration of the host while the tool is running. This research focused on three major operating systems commonly used by SCADA systems: Linux, WindowsXP, and Windows7. Windows 7 offers two paths that have minimal impact on the system and should be seriously considered. First is the new Windows Event Logging API, and, second, Windows 7 offers the ALE API within WFP. Any future work should focus on these methods.
Date: January 1, 2013
Creator: Chugg, Jonathan
Object Type: Report
System: The UNT Digital Library
Highly Insulating Windows Volume Purchase Program Final Report (open access)

Highly Insulating Windows Volume Purchase Program Final Report

This report summarizes the Highly Insulating Windows Volume Purchase Program, conduced by PNNL for DOE-BTP, including a summary of outcomes and lessons learned.
Date: February 1, 2013
Creator: Parker, Graham B.; Mapes, Terry S. & Zalis, W. J.
Object Type: Report
System: The UNT Digital Library
Biogas and Fuel Cells Workshop Summary Report: Proceedings from the Biogas and Fuel Cells Workshop, Golden, Colorado, June 11-13, 2012 (open access)

Biogas and Fuel Cells Workshop Summary Report: Proceedings from the Biogas and Fuel Cells Workshop, Golden, Colorado, June 11-13, 2012

The U.S. Department of Energy (DOE) National Renewable Energy Laboratory (NREL) held a Biogas and Fuel Cells Workshop June 11-13, 2012, in Golden, Colorado, to discuss biogas and waste-to-energy technologies for fuel cell applications. The overall objective was to identify opportunities for coupling renewable biomethane with highly efficient fuel cells to produce electricity; heat; combined heat and power (CHP); or combined heat, hydrogen and power (CHHP) for stationary or motive applications. The workshop focused on biogas sourced from wastewater treatment plants (WWTPs), landfills, and industrial facilities that generate or process large amounts of organic waste, including large biofuel production facilities (biorefineries).
Date: January 1, 2013
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Building America Systems Integration Research Annual Report: FY 2012 (open access)

Building America Systems Integration Research Annual Report: FY 2012

This document is the Building America FY2012 Annual Report, which includes an overview of the Building America Program activities and the work completed by the National Renewable Energy Laboratory and the Building America industry consortia (the Building America teams). The annual report summarizes major technical accomplishments and progress towards U.S. Department of Energy Building Technologies Program's multi-year goal of developing the systems innovations that enable risk-free, cost effective, reliable and durable efficiency solutions that reduce energy use by 30%-50% in both new and existing homes.
Date: May 1, 2013
Creator: Gestwick, M.
Object Type: Report
System: The UNT Digital Library
State-of-the-Art of Social Media Analytics Research (open access)

State-of-the-Art of Social Media Analytics Research

Overview of current state-of-the-art of social media for NTI Working Group III: Societal Verification
Date: January 1, 2013
Creator: Gastelum, Zoe N. & Whattam, Kevin M.
Object Type: Report
System: The UNT Digital Library
Magnetic Processing of Steel Strip and Next Generation Alloys (open access)

Magnetic Processing of Steel Strip and Next Generation Alloys

None
Date: May 1, 2013
Creator: Ludtka, Gerard Michael; Rios, Orlando; Wilgen, John B.; Parish, Chad M.; Rogers, Hiram; Kisner, Roger A. et al.
Object Type: Report
System: The UNT Digital Library
The Radiolysis of AmVI Solutions (open access)

The Radiolysis of AmVI Solutions

The reduction of bismuthate-produced AmVI by 60Co gamma-rays was measured using post-irradiation UV/Vis spectroscopy. The reduction of AmVI by radiolysis was rapid, producing AmV as the sole product. Relatively low absorbed doses in the ~0.3 kGy range quantitatively reduced a solution of 2.5 x 10-4 M AmVI. The addition of bismuthate to samples during irradiation did not appear to protect AmVI from radiolytic reduction during these experiments. It was also shown here that AmV is very stable toward radiation. The quantitative reduction of the AmVI concentration here corresponds to 1.4 hours of exposure to a process solution, however the actual americium concentrations will be higher and the expected contact times short when using centrifugal contactors. Thus, the reduction rate found in these initial experiments may not be excessive.
Date: June 1, 2013
Creator: Mincher, Bruce J.
Object Type: Report
System: The UNT Digital Library
Strategy Guideline: Energy Retrofits for Low-Rise Multifamily Buildings in Cold Climates (open access)

Strategy Guideline: Energy Retrofits for Low-Rise Multifamily Buildings in Cold Climates

This Strategy Guideline explains the benefits of evaluating and identifying energy efficiency retrofit measures that could be made during renovation and maintenance of multifamily buildings. It focuses on low-rise multifamily structures (three or fewer stories) in a cold climate. These benefits lie primarily in reduced energy use, lower operating and maintenance costs, improved durability of the structure, and increased occupant comfort. This guideline focuses on retrofit measures for roof repair or replacement, exterior wall repair or gut rehab, and eating system maintenance. All buildings are assumed to have a flat ceiling and a trussed roof, wood- or steel-framed exterior walls, and one or more single or staged boilers. Estimated energy savings realized from the retrofits will vary, depending on the size and condition of the building, the extent of efficiency improvements, the efficiency of the heating equipment, the cost and type of fuel, and the climate location.
Date: April 1, 2013
Creator: Frozyna, K. & Badger, L.
Object Type: Report
System: The UNT Digital Library
Water-Chemistry Evolution and Modeling of Radionuclide Sorption and Cation Exchange during Inundation of Frenchman Flat Playa (open access)

Water-Chemistry Evolution and Modeling of Radionuclide Sorption and Cation Exchange during Inundation of Frenchman Flat Playa

Atmospheric tests and other experiments with nuclear materials were conducted on the Frenchman Flat playa at the Nevada National Security Site, Nye County, Nevada; residual radionuclides are known to exist in Frenchman Flat playa soils. Although the playa is typically dry, extended periods of winter precipitation or large single-event rainstorms can inundate the playa. When Frenchman Flat playa is inundated, residual radionuclides on the typically dry playa surface may become submerged, allowing water-soil interactions that could provide a mechanism for transport of radionuclides away from known areas of contamination. The potential for radionuclide transport by occasional inundation of the Frenchman Flat playa was examined using geographic information systems and satellite imagery to delineate the timing and areal extent of inundation; collecting water samples during inundation and analyzing them for chemical and isotopic content; characterizing suspended/precipitated materials and archived soil samples; modeling water-soil geochemical reactions; and modeling the mobility of select radionuclides under aqueous conditions. The physical transport of radionuclides by water was not evaluated in this study. Frenchman Flat playa was inundated with precipitation during two consecutive winters in 2009-2010 and 2010-2011. Inundation allowed for collection of multiple water samples through time as the areal extent of inundation changed and …
Date: August 1, 2013
Creator: Hershey, Ronald; Cablk, Mary; LeFebre, Karen; Fenstermaker, Lynn & Decker, David
Object Type: Report
System: The UNT Digital Library
Analysis of the Impact of Balancing Area Cooperation on the Operation of WECC and the Compounding Effect of Wind and Solar Generation (open access)

Analysis of the Impact of Balancing Area Cooperation on the Operation of WECC and the Compounding Effect of Wind and Solar Generation

It is the intent of this analysis to examine the operational benefits of increased cooperation between a large number of WECC operating regions.
Date: February 1, 2013
Creator: Jordan, G. & Piwko, D.
Object Type: Report
System: The UNT Digital Library
Quantum Dots Promise to Significantly Boost Solar Cell Efficiencies (Fact Sheet) (open access)

Quantum Dots Promise to Significantly Boost Solar Cell Efficiencies (Fact Sheet)

In the search for a third generation of solar-cell technologies, a leading candidate is the use of 'quantum dots' -- tiny spheres of semiconductor material measuring only about 2-10 billionths of a meter in diameter. Quantum dots have the potential to dramatically increase the efficiency of converting sunlight into energy -- perhaps even doubling it in some devices -- because of their ability to generate more than one bound electron-hole pair, or exciton, per incoming photon. NREL has produced quantum dots using colloidal suspensions; then, using molecular self-assembly, they have been fabricated into the first-ever quantum-dot solar cells. While these devices operate with only 4.4% efficiency, they demonstrate the capability for low-cost manufacturing.
Date: August 1, 2013
Creator: unknown
Object Type: Report
System: The UNT Digital Library
NREL Launches Collaborative Resource for Field Test Best Practices (Fact Sheet) (open access)

NREL Launches Collaborative Resource for Field Test Best Practices (Fact Sheet)

Dynamic portal documents and shares state-of-the-art residential field test tools and techniques.
Date: September 1, 2013
Creator: unknown
Object Type: Report
System: The UNT Digital Library
New methods of uncertainty quantification for mixed discrete-continuous variable models. (open access)

New methods of uncertainty quantification for mixed discrete-continuous variable models.

None
Date: June 1, 2013
Creator: Bauman, Lara E.
Object Type: Report
System: The UNT Digital Library
Isospin Decomposition of the Photoproduced Sigma pi System Near the Lambda(1405) (open access)

Isospin Decomposition of the Photoproduced Sigma pi System Near the Lambda(1405)

Recent experimental results for the reaction \gamma + p \to K^+ + \Sigma + \pi\ from CLAS at Jefferson Lab are discussed. It was found that the mass distributions or "line shapes" of the three charge combinations \Sigma^+ \pi^-, \Sigma^0 \pi^0 and \Sigma^- \pi^+ differ significantly. Our results show that the \Lambda(1405), as the I=0 constituent of the reaction, must be accompanied by an I > 0 component. We discuss phenomenological fits to the data to test the possible forms and magnitudes of these amplitudes. A two-amplitude I=0 fit of Breit-Wigner form to the \Sigma^0\pi^0 channel alone works quite well. The addition of a single I=1 amplitude works fairly well to model all the line shapes simultaneously.
Date: September 1, 2013
Creator: U., Carnegie Mellon & U., Indiana
Object Type: Article
System: The UNT Digital Library
Hydra-TH Simulation of Single-Phase Flow and Heat (open access)

Hydra-TH Simulation of Single-Phase Flow and Heat

The focus of this report is on the comparison of n
Date: March 1, 2013
Creator: Bui, Anh & Zhang, Hongbin
Object Type: Report
System: The UNT Digital Library
Improvements to Existing Jefferson Lab Wire Scanners (open access)

Improvements to Existing Jefferson Lab Wire Scanners

This poster will detail the augmentation of selected existing CEBAF wire scanners with commercially available hardware, PMTs, and self created software in order to improve the scanners both in function and utility.
Date: June 1, 2013
Creator: McCaughan, Michael D.; Tiefenback, Michael G. & Turner, Dennis L.
Object Type: Article
System: The UNT Digital Library
SOWFA Super-Controller: A High-Fidelity Tool for Evaluating Wind Plant Control Approaches (open access)

SOWFA Super-Controller: A High-Fidelity Tool for Evaluating Wind Plant Control Approaches

This paper presents a new tool for testing wind plant controllers in the Simulator for Offshore Wind Farm Applications (SOWFA). SOWFA is a high-fidelity simulator for the interaction between wind turbine dynamics and the fluid flow in a wind plant. The new super-controller testing environment in SOWFA allows for the implementation of the majority of the wind plant control strategies proposed in the literature.
Date: January 1, 2013
Creator: Fleming, P.; Gebraad, P.; van Wingerden, J. W.; Lee, S.; Churchfield, M.; Scholbrock, A. et al.
Object Type: Article
System: The UNT Digital Library
The Scheme of Beam Synchronization in MEIC (open access)

The Scheme of Beam Synchronization in MEIC

Synchronizing colliding beams at single or multiple collision points is a critical R&D issue in the design of a medium energy electron-ion collider (MEIC) at Jefferson Lab. The path-length variation due to changes in the ion energy, which varies over 20 to 100 GeV, could be more than several times the bunch spacing. The scheme adopted in the present MEIC baseline is centered on varying the number of bunches (i.e., harmonic number) stored in the collider ring. This could provide a set of discrete energies for proton or ions such that the beam synchronization condition is satisfied. To cover the ion energy between these synchronized values, we further propose to vary simultaneously the electron ring circumference and the frequency of the RF systems in both collider rings. We also present in this paper the requirement of frequency tunability of SRF cavities to support the scheme.
Date: June 1, 2013
Creator: Zhang, Yuhong; Derbenev, Yaroslav S. & Hutton, Andrew M.
Object Type: Article
System: The UNT Digital Library
Military Base Off-Taker Opportunities for Tribal Renewable Energy Projects (open access)

Military Base Off-Taker Opportunities for Tribal Renewable Energy Projects

This white paper surveys DOD installations that could have an increased potential interest in the purchase of energy from renewable energy projects on tribal lands. Identification of likely purchasers of renewable energy is a first step in the energy project development process, and this paper aims to identify likely electricity customers that tribal commercial-scale projects could serve. This white paper builds on a geospatial analysis completed in November 2012 identifying 53 reservations within 10 miles of military bases (DOE 2012). This analysis builds on those findings by further refining the list of potential opportunity sites to 15 reservations (Table ES-1), based on five additional factors: 1) The potential renewable resources required to meet the installation energy loads; 2) Proximity to transmission lines; 3) Military installation energy demand; 4) State electricity prices; 5) Local policy and regulatory environment.
Date: May 1, 2013
Creator: Nangle, J.
Object Type: Report
System: The UNT Digital Library
Evaluation of Two CEDA Weatherization Pilot Implementations of an Exterior Insulation and Over-Clad Retrofit Strategy for Residential Masonry Buildings in Chicago (open access)

Evaluation of Two CEDA Weatherization Pilot Implementations of an Exterior Insulation and Over-Clad Retrofit Strategy for Residential Masonry Buildings in Chicago

This project examines the implementation of an exterior insulation and over-clad strategy for brick masonry buildings in Chicago. The strategy was implemented at a free-standing two story two-family dwelling and a larger free-standing multifamily building. The test homes selected for this research represent predominant housing types for the Chicago area. High heating energy use typical in these buildings threaten housing affordability. Uninsulated mass masonry wall assemblies also have a strongly detrimental impact on comfort. Significant changes to the performance of masonry wall assemblies is generally beyond the reach of typical weatherization (Wx) program resources. The Community and Economic Development Association of Cook County, Inc. (CEDA) has secured a Sustainable Energy Resources for Consumers (SERC) innovation grant sponsored by the United States Department of Energy (DOE). This grant provides CEDA the opportunity to pursue a pilot implementation of innovative approaches to retrofit in masonry wall enclosures. The exterior insulation and over-clad strategy implemented through this project was designed to allow implementation by contractors active in CEDA weatherization programs and using materials and methods familiar to these contractors. The retrofit measures are evaluated in terms of feasibility, cost and performance. Through observations of the strategies implemented, the research described in this report …
Date: August 1, 2013
Creator: Neuhauser, K.
Object Type: Report
System: The UNT Digital Library
Combined Heat and Power: Enabling Resilient Energy Infrastructure for Critical Facilities (open access)

Combined Heat and Power: Enabling Resilient Energy Infrastructure for Critical Facilities

None
Date: April 1, 2013
Creator: Hampson, Anne
Object Type: Report
System: The UNT Digital Library
Compliance Monitoring of Subyearling Chinook Salmon Survival and Passage at The Dalles Dam, Summer 2012 (open access)

Compliance Monitoring of Subyearling Chinook Salmon Survival and Passage at The Dalles Dam, Summer 2012

The purpose of this compliance study was to estimate dam passage survival of subyearling Chinook salmon at The Dalles Dam during summer 2012. Under the 2008 Federal Columbia River Power System Biological Opinion, dam passage survival is required to be greater than or equal to 0.93 and estimated with a standard error (SE) less than or equal to 0.015. The study also estimated survival from the forebay 2 km upstream of the dam and through the tailrace to 2 km downstream of the dam, forebay residence time, tailrace egress time, spill passage efficiency (SPE), and fish passage efficiency (FPE), as required by the 2008 Columbia Basin Fish Accords.
Date: May 1, 2013
Creator: Skalski, J. R.; Townsend, Richard L.; Seaburg, Adam; Ploskey, Gene R.; Weiland, Mark A.; Hughes, James S. et al.
Object Type: Report
System: The UNT Digital Library
2013 GASEOUS IONS GORDON RESEARCH CONFERENCE, FEBRUARY 24 - MARCH 1, 2013 (open access)

2013 GASEOUS IONS GORDON RESEARCH CONFERENCE, FEBRUARY 24 - MARCH 1, 2013

The Gaseous Ions: Structures, Energetics and Reactions Gordon Research Conference will focus on ions and their interactions with molecules, surfaces, electrons, and light. The long-standing goal of our community is to develop new strategies for capturing complex molecular architectures as gas phase ions where they can be isolated, characterized and manipulated with great sensitivity. Emergent areas of interest include catalytic mechanisms, cryogenic processing of ions extracted from solution, ion fragmentation mechanisms, and new methods for ion formation and structural characterization. The conference will cover theoretical and experimental advances on systems ranging from model studies at the molecular scale to preparation of nanomaterials and characterization of large biological molecules.
Date: March 1, 2013
Creator: Williams, Evan
Object Type: Article
System: The UNT Digital Library
Simple intrinsic defects in InAs : numerical predictions. (open access)

Simple intrinsic defects in InAs : numerical predictions.

This Report presents numerical tables summarizing properties of intrinsic defects in indium arsenide, InAs, as computed by density functional theory using semi-local density functionals, intended for use as reference tables for a defect physics package in device models.
Date: March 1, 2013
Creator: Schultz, Peter Andrew
Object Type: Report
System: The UNT Digital Library