Formed Core Sampler Hydraulic Conductivity Testing (open access)

Formed Core Sampler Hydraulic Conductivity Testing

A full-scale formed core sampler was designed and functionally tested for use in the Saltstone Disposal Facility (SDF). Savannah River National Laboratory (SRNL) was requested to compare properties of the formed core samples and core drilled samples taken from adjacent areas in the full-scale sampler. While several physical properties were evaluated, the primary property of interest was hydraulic conductivity. Differences in hydraulic conductivity between the samples from the formed core sampler and those representing the bulk material were noted with respect to the initial handling and storage of the samples. Due to testing conditions, the site port samples were exposed to uncontrolled temperature and humidity conditions prior to testing whereas the formed core samples were kept in sealed containers with minimal exposure to an uncontrolled environment prior to testing. Based on the results of the testing, no significant differences in porosity or density were found between the formed core samples and those representing the bulk material in the test stand.
Date: September 25, 2012
Creator: Miller, D. H. & Reigel, M. M.
Object Type: Report
System: The UNT Digital Library
Hydraulic Fracturing and the National Environmental Policy Act (NEPA): Selected Issues (open access)

Hydraulic Fracturing and the National Environmental Policy Act (NEPA): Selected Issues

This report provides an overview of two situations in which agencies are arguing that they do not need to conduct a comprehensive environmental review of hydraulic fracturing under the National Environmental Policy Act (NEPA).
Date: April 25, 2012
Creator: Murrill, Brandon J.
Object Type: Report
System: The UNT Digital Library
Advanced Thermal Energy Storage (open access)

Advanced Thermal Energy Storage

Advanced Research Projects Agency-Energy project sheet summarizing general information about the High Energy Advanced Thermal Storage (HEATS) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses advanced thermal energy storage as part of the "Novel Tuning of Critical Fluctuations for Advanced Thermal Energy Storage" project.
Date: May 25, 2012
Creator: NAVITASMAX
Object Type: Text
System: The UNT Digital Library
Design of RF Feed System for Standing-Wave Accelerator Structures (open access)

Design of RF Feed System for Standing-Wave Accelerator Structures

We are investigating a standing wave accelerator structure that uses a rf feed to each individual cell. This approach minimizes rf power flow and electromagnetic energy absorbed by an rf breakdown. The objective of this work is a robust high-gradient (above 100 MV/m) X-band accelerator structure.
Date: May 25, 2012
Creator: Neilson, J.; Tantawi, S. & Dolgashev, V.
Object Type: Article
System: The UNT Digital Library
Contemporary Fraction of bis(2-ethylhexyl) Phthalate in Stilton Cheese by Accelerator Mass Spectrometry (open access)

Contemporary Fraction of bis(2-ethylhexyl) Phthalate in Stilton Cheese by Accelerator Mass Spectrometry

None
Date: September 25, 2012
Creator: Nelson, M. A.; Ondov, J. A.; VanDerveer, M. C. & Buchholz, B. A.
Object Type: Article
System: The UNT Digital Library
Searches for Leptonic B Decays at BaBar (open access)

Searches for Leptonic B Decays at BaBar

Measurements of the branching fractions of purely leptonic decays of B-mesons translate into constraints in the plane of the charged Higgs mass versus tan {beta} which are relatively insensitive to the particular theoretical model. Using the full BABAR dataset of 450 million B-decays we search for these decays. No significant signal is found in the decays into electrons or muons and we set upper limits on the branching fractions of the order of a 10{sup -6} at 90% confidence level. We measure the branching fraction of B {yields} {tau}{mu} to be (1.7 {+-} 0.6) x 10{sup -4}.
Date: April 25, 2012
Creator: Nelson, Silke
Object Type: Article
System: The UNT Digital Library
Proliferation Control Regimes: Background and Status (open access)

Proliferation Control Regimes: Background and Status

Report that discusses the nuclear nonproliferation regime that encompasses several treaties, extensive multilateral and bilateral diplomatic agreements, multilateral organizations and domestic agencies, and the domestic laws of participating countries. The chemical and biological weapons (CBW) nonproliferation regimes contain three elements: the Chemical Weapons Convention (CWC), the Biological and Toxin Weapons Convention (BWC), and the Australia Group.
Date: October 25, 2012
Creator: Nikitin, Mary Beth; Kerr, Paul K. & Hildreth, Steven A.
Object Type: Report
System: The UNT Digital Library
Iron-Nickel-Based SuperMagnets (open access)

Iron-Nickel-Based SuperMagnets

Advanced Research Projects Agency-Energy project sheet summarizing general information about the Rare Earth Alternatives in Critical Technologies (REACT) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses bulk development of iron-nickel crystal structure magnets as part of the "Multiscale Development of L10 Materials for Rare Earth-Free Permanent Magnets" project.
Date: May 25, 2012
Creator: Northeastern University
Object Type: Text
System: The UNT Digital Library
Field Tolerances for the Triplet Quadrupoles of the LHC High Luminosity Lattice (open access)

Field Tolerances for the Triplet Quadrupoles of the LHC High Luminosity Lattice

It has been proposed to implement the so-called Achromatic Telescopic Squeezing (ATS) scheme in the LHC high luminosity (HL) lattice to reduce beta functions at the Interaction Points (IP) up to a factor of 8. As a result, the nominal 4.5 km peak beta functions reached in the Inner Triplets (IT) at collision will be increased by the same factor. This, therefore, justifies the installation of new, larger aperture, superconducting IT quadrupoles. The higher beta functions will enhance the effects of the triplet quadrupole field errors leading to smaller beam dynamic aperture (DA). To maintain the acceptable DA, the effects of the triplet field errors must be re-evaluated, thus specifying new tolerances. Such a study has been performed for the so-called '4444' collision option of the HL-LHC layout version SLHCV3.01, where the IP beta functions are reduced by a factor of 4 in both planes with respect to a pre-squeezed value of 60 cm at two collision points. The dynamic aperture calculations were performed using SixTrack. The impact on the triplet field quality is presented.
Date: June 25, 2012
Creator: Nosochkov, Yuri; Cai, Y.; Jiao, Y.; Wang, M. H.; Fartoukh, S.; Giovannozzi, M. et al.
Object Type: Article
System: The UNT Digital Library
Navy Aegis Ballistic Missile Defense (BMD) Program: Background and Issues for Congress (open access)

Navy Aegis Ballistic Missile Defense (BMD) Program: Background and Issues for Congress

Report that discusses the funding for the growth of the Aegis ballistic missile defense (BMD) program. The Aegis BMD program, which is carried out by the Missile Defense Agency (MDA) and the Navy, gives Navy Aegis cruisers and destroyers a capability for conducting BMD operations.
Date: October 25, 2012
Creator: O'Rourke, Ronald
Object Type: Report
System: The UNT Digital Library
Navy Ship Names: Background for Congress (open access)

Navy Ship Names: Background for Congress

Congress has long maintained an interest in how Navy ships are named, and has influenced the naming of certain Navy ships. The Navy suggests that congressional offices wishing to express support for proposals to name a Navy ship for a specific person, place, or thing contact the office of the Secretary of the Navy to make their support known. Congress may also pass legislation relating to ship names. Measures passed by Congress in recent years regarding Navy ship names have all been sense-of-the-Congress provisions.
Date: April 25, 2012
Creator: O'Rourke, Ronald
Object Type: Report
System: The UNT Digital Library
High-Surface-Area CO2 Sponge (open access)

High-Surface-Area CO2 Sponge

Advanced Research Projects Agency-Energy project sheet summarizing general information about the Innovative Materials and Processes for Advanced Carbon Capture Technologies (IMPACCT) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses the development of carbon sponges as part of the "High Performance CO2 Scrubbing Based on Hollow Fiber-Supported Designer Ionic Liquid Sponges" project.
Date: May 25, 2012
Creator: Oak Ridge National Laboratory
Object Type: Text
System: The UNT Digital Library
Fox Ridge Energy and Education Institute Project Development Final Report (open access)

Fox Ridge Energy and Education Institute Project Development Final Report

Project final report and summary.
Date: February 25, 2012
Creator: Osborn, Dale
Object Type: Report
System: The UNT Digital Library
Reliable, Lightweight Transmissions For Off-Shore, Utility Scale Wind Turbines (open access)

Reliable, Lightweight Transmissions For Off-Shore, Utility Scale Wind Turbines

The objective of this project was to reduce the technical risk for a hydrostatic transmission based drivetrain for high-power utility-size wind turbines. A theoretical study has been performed to validate the reduction of cost of energy (CoE) for the wind turbine, identify risk mitigation strategies for the drive system and critical components, namely the pump, shaft connection and hydrostatic transmission (HST) controls and address additional benefits such as reduced deployment costs, improved torque density and improved mean time between repairs (MTBR).
Date: October 25, 2012
Creator: Ossyra, Jean-Claude
Object Type: Report
System: The UNT Digital Library
Manganese-Based Magnets (open access)

Manganese-Based Magnets

Advanced Research Projects Agency-Energy project sheet summarizing general information about the Rare Earth Alternatives in Critical Technologies (REACT) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses a new type of magnet for wind turbines as part of the "Manganese-Based Permanent Magnet with 40 MGOe at 200°C" project.
Date: May 25, 2012
Creator: Pacific Northwest National Laboratory (U.S.)
Object Type: Text
System: The UNT Digital Library
Electric Adsorption Heat Pump for Electric Vehicles (open access)

Electric Adsorption Heat Pump for Electric Vehicles

Advanced Research Projects Agency-Energy project sheet summarizing general information about the High Energy Advanced Thermal Storage (HEATS) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses the development of an advanced nanomaterial for electrical vehicle heating and cooling systems as part of the "Electric-Powered Adsorption Heat Pump for Electric Vehicles" project.
Date: May 25, 2012
Creator: Pacific Northwest National Library
Object Type: Text
System: The UNT Digital Library
Evaluation of Cavity Collapse and Surface Crater Formation at the Salut Underground Nuclear Test in U20ak, Nevada National Security Site, and the Impact of Stability of the Ground Surface (open access)

Evaluation of Cavity Collapse and Surface Crater Formation at the Salut Underground Nuclear Test in U20ak, Nevada National Security Site, and the Impact of Stability of the Ground Surface

At the request of Jerry Sweeney, the LLNL Containment Program performed a review of nuclear test-related data for the Salut underground nuclear test in U20ak to assist in evaluating this legacy site as a test bed for application technologies for use in On-Site Inspections (OSI) under the Comprehensive Nuclear Test Ban Treaty. Review of the Salut site is complicated because the test experienced a subsurface, rather than surface, collapse. Of particular interest is the stability of the ground surface above the Salut detonation point. Proposed methods for on-site verification include radiological signatures, artifacts from nuclear testing activities, and imaging to identify alteration to the subsurface hydrogeologogy due to the nuclear detonation. Sweeney's proposal requires physical access at or near the ground surface of specific underground nuclear test locations at the Nevada Nuclear Test Site (NNSS, formerly the Nevada Test Site), and focuses on possible activities such as visual observation, multispectral measurements, and shallow, and deep geophysical surveys.
Date: April 25, 2012
Creator: Pawloski, G. A.
Object Type: Report
System: The UNT Digital Library
The Six-Point Remainder Function to all Loop Orders in the Multi-Regge Limit (open access)

The Six-Point Remainder Function to all Loop Orders in the Multi-Regge Limit

None
Date: September 25, 2012
Creator: Pennington, Jeffrey
Object Type: Article
System: The UNT Digital Library
Results Of Routine Strip Effluent Hold Tank, Decontaminated Salt Solution Hold Tank, And Caustic Wash Tank Samples From Modular Caustic-Side Solvent Extraction Unit During Macrobatch 4 Operations (open access)

Results Of Routine Strip Effluent Hold Tank, Decontaminated Salt Solution Hold Tank, And Caustic Wash Tank Samples From Modular Caustic-Side Solvent Extraction Unit During Macrobatch 4 Operations

Strip Effluent Hold Tank (SEHT), Decontaminated Salt Solution Hold Tank (DSSHT), and Caustic Wash Tank (CWT) samples from several of the ?microbatches? of Integrated Salt Disposition Project (ISDP) Salt Batch (?Macrobatch?) 4 have been analyzed for {sup 238}Pu, {sup 90}Sr, {sup 137}Cs, and by inductively-coupled plasma emission spectroscopy (ICPES). Furthermore, samples from the CWT have been analyzed by a variety of methods to investigate a decline in the decontamination factor (DF) of the cesium observed at MCU. The results indicate good decontamination performance within process design expectations. While the data set is sparse, the results of this set and the previous set of results for Macrobatch 3 samples indicate generally consistent operations. There is no indication of a disruption in plutonium and strontium removal. The average cesium DF and concentration factor (CF) for samples obtained from Macrobatch 4 are slightly lower than for Macrobatch 3, but still well within operating parameters. The DSSHT samples show continued presence of titanium, likely from leaching of the monosodium titanate in Actinide Removal Process (ARP).
Date: October 25, 2012
Creator: Peters, T. B. & Fink, S. D.
Object Type: Report
System: The UNT Digital Library
Members of Congress Who Die in Office: Historic and Current Practices (open access)

Members of Congress Who Die in Office: Historic and Current Practices

Since 1973, 84 Members of Congress-69 Representatives, and 15 Senators-have died in office. When a sitting Member dies, the House and Senate carry out a number of actions based on chamber rules, statutes, and longstanding practices. This report discusses these actions.
Date: April 25, 2012
Creator: Petersen, R. Eric & Manning, Jennifer E.
Object Type: Report
System: The UNT Digital Library
Metering Plan: Monitoring Energy and Potable Water Use in PNNL EMS4 Buildings (open access)

Metering Plan: Monitoring Energy and Potable Water Use in PNNL EMS4 Buildings

This Plan presents progress toward the metering goals shared by all national laboratories and discusses PNNL's contemporary approach to the installation of new meters. In addition, the Plan discusses the data analysis techniques with which PNNL is working to mature using endless data streams made available as a result of increased meter deployment.
Date: July 25, 2012
Creator: Pope, Jason E.
Object Type: Report
System: The UNT Digital Library
Efficient, High-Torque Electric Vehicle Motor (open access)

Efficient, High-Torque Electric Vehicle Motor

Advanced Research Projects Agency-Energy project sheet summarizing general information about the Rare Earth Alternatives in Critical Technologies (REACT) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses a new type of electric motor as part of the "Advanced Electric Vehicle Motors with Low or No Rare Earth Content" project.
Date: May 25, 2012
Creator: QM Power, Inc.
Object Type: Text
System: The UNT Digital Library
A Class Of Generalized Kapchinskij-Vladimirskij Solutions And Associated Envelope Equations For High-intensity Charged Particle Beams (open access)

A Class Of Generalized Kapchinskij-Vladimirskij Solutions And Associated Envelope Equations For High-intensity Charged Particle Beams

A class of generalized Kapchinskij-Vladimirskij solutions of the nonlinear Vlasov-Maxwell equations and the associated envelope equations for high-intensity beams in a periodic lattice is derived. It includes the classical Kapchinskij-Vladimirskij solution as a special case. For a given lattice, the distribution functions and the envelope equations are specified by eight free parameters. The class of solutions derived captures a wider range of dynamical envelope behavior for high-intensity beams, and thus provides a new theoretical tool to investigate the dynamics of high-intensity beams.
Date: April 25, 2012
Creator: Qin, Hong & Davidson, Ronald C.
Object Type: Report
System: The UNT Digital Library
OVERVIEW OF HANFORD SINGLE SHELL TANK (SST) STRUCTURAL INTEGRITY - 12123 (open access)

OVERVIEW OF HANFORD SINGLE SHELL TANK (SST) STRUCTURAL INTEGRITY - 12123

To improve the understanding of the single-shell tanks (SSTs) integrity, Washington River Protection Solutions, LLC (WRPS), the USDOE Hanford Site tank contractor, developed an enhanced Single-Shell Tank Integrity Project in 2009. An expert panel on SST integrity, consisting of various subject matters experts in industry and academia, was created to provide recommendations supporting the development of the project. This panel developed 33 recommendations in four main areas of interest: structural integrity, liner degradation, leak integrity and prevention, and mitigation of contamination migration. Seventeen of these recommendations were used to develop the basis for the M-45-10-1 Change Package for the Hanford Federal Agreement and Compliance Order, which is also known as the Tri-Party Agreement. The structural integrity of the tanks is a key element in completing the cleanup mission at the Hanford Site. There are eight primary recommendations related to the structural integrity of Hanford SSTs. Six recommendations are being implemented through current and planned activities. The structural integrity of the Hanford SSTs is being evaluated through analysis, monitoring, inspection, materials testing, and construction document review. Structural evaluation in the form of analysis is performed using modern finite element models generated in ANSYS{reg_sign} The analyses consider in-situ, thermal, operating loads and …
Date: January 25, 2012
Creator: Rast, R. S.; Rinker, M. W.; Washenfelder, D. J. & Johnson, J. B.
Object Type: Article
System: The UNT Digital Library