Constraining Jet Production Scenarios by Studies of Narrow-Line-Radio-Galaxies (open access)

Constraining Jet Production Scenarios by Studies of Narrow-Line-Radio-Galaxies

None
Date: February 11, 2013
Creator: Sikora, Marek; Stasinska, Grazyna; Koziel-Wierzbowska, Dorota; Madejski, Greg M. & Asari, Natalia V.
Object Type: Article
System: The UNT Digital Library
A Family of Flexures That Eliminate Underconstraint in Nested Large-Stroke Flexure Systems (open access)

A Family of Flexures That Eliminate Underconstraint in Nested Large-Stroke Flexure Systems

None
Date: February 11, 2013
Creator: Hopkins, J. B. & Panas, R. M.
Object Type: Article
System: The UNT Digital Library
High Order Ribbon Fiber Modes, Simulations, and Experiments for High Power Amplifiers (open access)

High Order Ribbon Fiber Modes, Simulations, and Experiments for High Power Amplifiers

None
Date: February 11, 2013
Creator: Drachenberg, D.; Messerly, M.; Pax, P.; Sridharan, A.; Tassano, J. & Dawson, J.
Object Type: Article
System: The UNT Digital Library
Linear Permittivity Tapering in a Cerenkov Microwave Source with a Pre-Bunched Beam (open access)

Linear Permittivity Tapering in a Cerenkov Microwave Source with a Pre-Bunched Beam

None
Date: February 11, 2013
Creator: Poole, B R & Harris, J R
Object Type: Article
System: The UNT Digital Library
Nevada National Security Site 2012 Data Report: Groundwater Monitoring Program Area 5 Radioactive Waste Management Site (open access)

Nevada National Security Site 2012 Data Report: Groundwater Monitoring Program Area 5 Radioactive Waste Management Site

This report is a compilation of the groundwater sampling results from the Area 5 Radioactive Waste Management Site (RWMS). The data have been collected since 1993 and include calendar year 2012 results. During 2012, groundwater samples were collected and static water levels were measured at the three pilot wells surrounding the Area 5 RWMS. Groundwater samples were collected at UE5PW-1, UE5PW-2, and UE5PW-3 on March 21, August 7, August 21, and September 11, 2012, and static water levels were measured at each of the three pilot wells on March 19, June 6, August 2, and October 15, 2012. Groundwater samples were analyzed for the following indicators of contamination: pH, specific conductance, total organic carbon, total organic halides, and tritium. Indicators of general water chemistry (cations and anions) were also measured. Final results from samples collected in 2012 were within the limits established by agreement with the Nevada Division of Environmental Protection for each analyte. These data indicate that there has been no measurable impact to the uppermost aquifer from the Area 5 RWMS. There were no significant changes in measured groundwater parameters compared to previous years. The report contains an updated cumulative chronology for the Area 5 RWMS Groundwater Monitoring …
Date: February 11, 2013
Creator: National Security Technologies, LLC
Object Type: Report
System: The UNT Digital Library
Pinging Africa (open access)

Pinging Africa

None
Date: February 11, 2013
Creator: Cottrell, R. Les
Object Type: Article
System: The UNT Digital Library
Report on Design, Development, and Characterization of a Coaxial Resonator Based Single-gap Gridless Multiharmonic Buncher (open access)

Report on Design, Development, and Characterization of a Coaxial Resonator Based Single-gap Gridless Multiharmonic Buncher

The design of the multiharmonic buncher is determined by Facility for Rare Isotope Beam (FRIB) requirements. The buncher will bunch stable ion beams for injection into the FRIB RFQ to minimize the longitudinal beam emittance growth. The design beam energy is fixed at 12 keV/u while the beam charge state Q/A can vary from 1/3 to 1/7. The buncher operates at a fundamental frequency of 40.25 MHz. Two higher harmonics, 80.5 MHz and 120.75 MHz are used to linearize the voltage ramp. The typical accelerating voltage for a uranium beam, including the time-of-flight factor, is 1271 V, 456 V, and 150 V for 40.25 MHz, 80.5 MHz, and 120.75 MHz harmonics respectively. The voltage will be scaled with the charge state of an accelerated beam. The accelerated electrical beam current is expected to be approximately equal to 0.5 mA for all ion beams between oxygen and uranium.
Date: February 11, 2013
Creator: Pozdeyev, E.; Brandon, J.; Bultman, N.; Rao, X.; York, R. & Zhao, Q.
Object Type: Report
System: The UNT Digital Library
Search for CP violation in the Decays $D^{\pm} to K^0_{\scriptscriptstyle S} K^\pm$, $D_s^{\pm} to K^0_{\scriptscriptstyle S} K^\pm$, and $D_s^{\pm} to K^0_{\scriptscriptstyle S} p^\pm$ (open access)

Search for CP violation in the Decays $D^{\pm} to K^0_{\scriptscriptstyle S} K^\pm$, $D_s^{\pm} to K^0_{\scriptscriptstyle S} K^\pm$, and $D_s^{\pm} to K^0_{\scriptscriptstyle S} p^\pm$

None
Date: February 11, 2013
Creator: Lees, J. P.; Poireau, V.; Tisserand, V.; Grauges, E.; Palano, A.; Eigen, G. et al.
Object Type: Article
System: The UNT Digital Library
Synthesis of in-situ microphysical measurements with remote retrievals and models (open access)

Synthesis of in-situ microphysical measurements with remote retrievals and models

Final Report describes research analysis done relating to the DOE ASR ISDAC (Indirect and SemiDirect Aerosol Campaign) in Alaska April 2008.
Date: February 11, 2013
Creator: Lawson, R. Paul; Lance, S. & Qixu, M.
Object Type: Report
System: The UNT Digital Library
Used fuel management system architecture evaluation, Fiscal Year 2012 (open access)

Used fuel management system architecture evaluation, Fiscal Year 2012

None
Date: February 11, 2013
Creator: Nutt, M.; Morris, E.; Puig, F.; Carter, J.; Rodwell, P.; Delley, A. et al.
Object Type: Report
System: The UNT Digital Library
Atmospheric Radiation Measurement Climate Research Facility Operations Quarterly Report October 1–December 31, 2012 (open access)

Atmospheric Radiation Measurement Climate Research Facility Operations Quarterly Report October 1–December 31, 2012

Individual datastreams from instrumentation at the Atmospheric Radiation Measurement (ARM) Climate Research Facility fixed and mobile research sites are collected and routed to the Data Management Facility (DMF) for processing in near-real-time. Instrument and processed data are then delivered approximately daily to the ARM Data Archive, where they are made freely available to the research community. For each instrument, we calculate the ratio of the actual number of processed data records received daily at the Data Archive to the expected number of data records. The results are tabulated by (1) individual datastream, site, and month for the current year and (2) site and fiscal year dating back to 1998.
Date: January 11, 2013
Creator: Voyles, JW
Object Type: Text
System: The UNT Digital Library
The Cementitious Barriers Partnership (CBP) Software Toolbox Capabilities In Assessing The Degradation Of Cementitious Barriers (open access)

The Cementitious Barriers Partnership (CBP) Software Toolbox Capabilities In Assessing The Degradation Of Cementitious Barriers

The Cementitious Barriers Partnership (CBP) Project is a multi-disciplinary, multi-institutional collaboration supported by the U.S. Department of Energy (US DOE) Office of Tank Waste and Nuclear Materials Management. The CBP program has developed a set of integrated tools (based on state-of-the-art models and leaching test methods) that help improve understanding and predictions of the long-term structural, hydraulic and chemical performance of cementitious barriers used in nuclear applications. Tools selected for and developed under this program have been used to evaluate and predict the behavior of cementitious barriers used in near-surface engineered waste disposal systems for periods of performance up to 100 years and longer for operating facilities and longer than 1000 years for waste disposal. The CBP Software Toolbox has produced tangible benefits to the DOE Performance Assessment (PA) community. A review of prior DOE PAs has provided a list of potential opportunities for improving cementitious barrier performance predictions through the use of the CBP software tools. These opportunities include: 1) impact of atmospheric exposure to concrete and grout before closure, such as accelerated slag and Tc-99 oxidation, 2) prediction of changes in Kd/mobility as a function of time that result from changing pH and redox conditions, 3) concrete degradation …
Date: January 11, 2013
Creator: Flach, G. P.; Burns, H. H.; Langton, C.; Smith, F. G., III; Brown, K. G.; Kosson, D. S. et al.
Object Type: Article
System: The UNT Digital Library
Commercial Building Energy Asset Score System: Program Overview and Technical Protocol (Version 1.0) (open access)

Commercial Building Energy Asset Score System: Program Overview and Technical Protocol (Version 1.0)

The U.S. Department of Energy (DOE) is developing a national voluntary energy asset score system that includes an energy asset score tool to help building owners evaluate their buildings with respect to the score system. The goal of the energy asset score system is to facilitate cost-effective investment in energy efficiency improvements of commercial buildings. The system will allow building owners and managers to compare their building infrastructure against peers and track building upgrade progress over time. The system can also help other building stakeholders (e.g., building operators, tenants, financiers, and appraisers) understand the relative efficiency of different buildings in a way that is independent from their operations and occupancy. This report outlines the technical protocol used to generate the energy asset score, explains the scoring methodology, and provides additional details regarding the energy asset score tool. This report also describes alternative methods that were considered prior to developing the current approach. Finally, this report describes a few features of the program where alternative approaches are still under evaluation.
Date: January 11, 2013
Creator: Wang, Na & Gorrissen, Willy J.
Object Type: Report
System: The UNT Digital Library
The Component Slope Linear Model for Calculating Intensive Partial Molar Properties: Application to Waste Glasses (open access)

The Component Slope Linear Model for Calculating Intensive Partial Molar Properties: Application to Waste Glasses

Partial molar properties are the changes occurring when the fraction of one component is varied while the fractions of all other component mole fractions change proportionally. They have many practical and theoretical applications in chemical thermodynamics. Partial molar properties of chemical mixtures are difficult to measure because the component mole fractions must sum to one, so a change in fraction of one component must be offset with a change in one or more other components. Given that more than one component fraction is changing at a time, it is difficult to assign a change in measured response to a change in a single component. In this study, the Component Slope Linear Model (CSLM), a model previously published in the statistics literature, is shown to have coefficients that correspond to the intensive partial molar properties. If a measured property is plotted against the mole fraction of a component while keeping the proportions of all other components constant, the slope at any given point on a graph of this curve is the partial molar property for that constituent. Actually plotting this graph has been used to determine partial molar properties for many years. The CSLM directly includes this slope in a model …
Date: January 11, 2013
Creator: Reynolds, Jacob G.
Object Type: Article
System: The UNT Digital Library
The component slope linear model for calculating intensive partial molar properties /application to waste glasses and aluminate solutions (open access)

The component slope linear model for calculating intensive partial molar properties /application to waste glasses and aluminate solutions

Partial molar properties are the changes occurring when the fraction of one component is varied while the fractions of all other component mole fractions change proportionally. They have many practical and theoretical applications in chemical thermodynamics. Partial molar properties of chemical mixtures are difficult to measure because the component mole fractions must sum to one, so a change in fraction of one component must be offset with a change in one or more other components. Given that more than one component fraction is changing at a time, it is difficult to assign a change in measured response to a change in a single component. In this study, the Component Slope Linear Model (CSLM), a model previously published in the statistics literature, is shown to have coefficients that correspond to the intensive partial molar properties. If a measured property is plotted against the mole fraction of a component while keeping the proportions of all other components constant, the slope at any given point on a graph of this curve is the partial molar property for that constituent. Actually plotting this graph has been used to determine partial molar properties for many years. The CSLM directly includes this slope in a model …
Date: January 11, 2013
Creator: Reynolds, Jacob G.
Object Type: Article
System: The UNT Digital Library
Degradation of dome cutting minerals in Hanford waste (open access)

Degradation of dome cutting minerals in Hanford waste

At the Hanford Tank Farms, recent changes in retrieval technology require cutting new risers in several single-shell tanks. The Hanford Tank Farm Operator is using water jet technology with abrasive silicate minerals such as garnet or olivine to cut through the concrete and rebar dome. The abrasiveness of these minerals, which become part of the high-level waste stream, may enhance the erosion of waste processing equipment. However, garnet and olivine are not thermodynamically stable in Hanford waste, slowly degrading over time. How likely these materials are to dissolve completely in the waste before the waste is processed in the Waste Treatment and Immobilization Plant can be evaluated using theoretical analysis for olivine and collected direct experimental evidence for garnet. Based on an extensive literature study, a large number of primary silicates decompose into sodalite and cancrinite when exposed to Hanford waste. Given sufficient time, the sodalite also degrades into cancrinite. Even though cancrinite has not been directly added to any Hanford tanks during process times, it is the most common silicate observed in current Hanford waste. By analogy, olivine and garnet are expected to ultimately also decompose into cancrinite. Garnet used in a concrete cutting demonstration was immersed in a …
Date: January 11, 2013
Creator: Reynolds, Jacob G.; Huber, Heinz J. & Cooke, Gary A.
Object Type: Article
System: The UNT Digital Library
Lessons Learned from the 200 West Pump and Treatment Facility Construction Project at the US DOE Hanford Site - A Leadership for Energy and Environmental Design (LEED) Gold-Certified Facility (open access)

Lessons Learned from the 200 West Pump and Treatment Facility Construction Project at the US DOE Hanford Site - A Leadership for Energy and Environmental Design (LEED) Gold-Certified Facility

CH2M Hill Plateau Remediation Company (CHPRC) designed, constructed, commissioned, and began operation of the largest groundwater pump and treatment facility in the U.S. Department of Energy’s (DOE) nationwide complex. This one-of-a-kind groundwater pump and treatment facility, located at the Hanford Nuclear Reservation Site (Hanford Site) in Washington State, was built to an accelerated schedule with American Recovery and Reinvestment Act (ARRA) funds. There were many contractual, technical, configuration management, quality, safety, and Leadership in Energy and Environmental Design (LEED) challenges associated with the design, procurement, construction, and commissioning of this $95 million, 52,000 ft groundwater pump and treatment facility to meet DOE’s mission objective of treating contaminated groundwater at the Hanford Site with a new facility by June 28, 2012. The project team’s successful integration of the project’s core values and green energy technology throughout design, procurement, construction, and start-up of this complex, first-of-its-kind Bio Process facility resulted in successful achievement of DOE’s mission objective, as well as attainment of LEED GOLD certification, which makes this Bio Process facility the first non-administrative building in the DOE Office of Environmental Management complex to earn such an award.
Date: January 11, 2013
Creator: Dorr, Kent A.; Ostrom, Michael J. & Freeman-Pollard, Jhivaun R.
Object Type: Article
System: The UNT Digital Library
Methods for heel retrieval for tanks C-101, C-102, and C-111 at the Hanford Site (open access)

Methods for heel retrieval for tanks C-101, C-102, and C-111 at the Hanford Site

The purpose of this paper is to evaluate the prospects of using bulk waste characteristics to determine the most appropriate heel retrieval technology. If the properties of hard to remove heels can be determined before bulk retrieval, then a heel retrieval technology can be selected before bulk retrieval is complete. This would save substantially on sampling costs and would allow the deployment of the heel retrieval technology immediately after bulk retrieval. The latter would also accelerate the heel removal schedule. A number of C-farm retrievals have been fully or partially completed at the time of this writing. Thus, there is already substantial information on the success of different technologies and the composition of the heels. There is also substantial information on the waste types in each tank based on historical records. Therefore, this study will correlate the performance of technologies used so far and compare them to the known waste types in the tanks. This will be used to estimate the performance of future C Farm heel retrievals. An initial decision tree is developed and employed on tanks C-101, C-102, and C 111. An assumption of this study is that no additional characterization information would be available, before or after …
Date: January 11, 2013
Creator: Sams, Terry L.; Kirch, N. W. & Reynolds, Jacob G.
Object Type: Article
System: The UNT Digital Library
A microscopic theory of low energy fission: fragment properties (open access)

A microscopic theory of low energy fission: fragment properties

None
Date: January 11, 2013
Creator: Younes, W.; Gogny, D. & Schunck, N.
Object Type: Article
System: The UNT Digital Library
Negative Compressibility and Inverse Problem for Spinning Gas (open access)

Negative Compressibility and Inverse Problem for Spinning Gas

A spinning ideal gas in a cylinder with a smooth surface is shown to have unusual properties. First, under compression parallel to the axis of rotation, the spinning gas exhibits negative compressibility because energy can be stored in the rotation. Second, the spinning breaks the symmetry under which partial pressures of a mixture of gases simply add proportional to the constituent number densities. Thus, remarkably, in a mixture of spinning gases, an inverse problem can be formulated such that the gas constituents can be determined through external measurements only.
Date: January 11, 2013
Creator: Geyko, Vasily & Fisch, Nathaniel J.
Object Type: Report
System: The UNT Digital Library
Purified Self-amplified Spontaneous Emission (pSASE) Free-electron Lasers with Slippage-boosted Filtering (open access)

Purified Self-amplified Spontaneous Emission (pSASE) Free-electron Lasers with Slippage-boosted Filtering

None
Date: January 11, 2013
Creator: Xiang, Dao; Ding, Yuantao; Huang, Zhirong & Deng, Haixiao
Object Type: Article
System: The UNT Digital Library
Quantification Of Aluminum Increase Factors for Curtainwall Design Using Finite Element Methods (open access)

Quantification Of Aluminum Increase Factors for Curtainwall Design Using Finite Element Methods

None
Date: January 11, 2013
Creator: Leininger, L D & Gallant, S M
Object Type: Article
System: The UNT Digital Library
Application of the Balanced Hybrid Mode in Overmoded Corrugated Waveguides to Short Wavelength Dynamic Undulators (open access)

Application of the Balanced Hybrid Mode in Overmoded Corrugated Waveguides to Short Wavelength Dynamic Undulators

This report talks about Application of the Balanced Hybrid Mode in Overmoded Corrugated Waveguides to Short Wavelength Dynamic Undulators
Date: December 11, 2012
Creator: Bowden, G.B.; Chang, C.; Neilson, J.; Shumail, M.; SLAC; Tantawi, S.G. et al.
Object Type: Article
System: The UNT Digital Library
Collisionless Shocks Experiments Using NIF (open access)

Collisionless Shocks Experiments Using NIF

None
Date: December 11, 2012
Creator: Liang, E
Object Type: Report
System: The UNT Digital Library