Insert Coil Test for HEP High Field Magnets Using YBCO Coated Conductor Tapes (open access)

Insert Coil Test for HEP High Field Magnets Using YBCO Coated Conductor Tapes

The final beam cooling stages of a Muon Collider may require DC solenoid magnets with magnetic fields of 30-50 T. In this paper we present progress in insert coil development using commercially available YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} Coated Conductor. Technological aspects covered in the development, including coil geometry, insulation, manufacturing process and testing are summarized and discussed. Test results of double pancake coils operated in liquid nitrogen and liquid helium are presented and compared with the performance of YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} tape short samples.
Date: June 15, 2011
Creator: Lombardo, V.; Barzi, E.; Turrioni, D. & Zlobin, A. V.
Object Type: Article
System: The UNT Digital Library
Error Field Correction in DIII-D Ohmic Plasmas with Either Handedness (open access)

Error Field Correction in DIII-D Ohmic Plasmas with Either Handedness

The expression for the overlap, Equation (1) in the published article at Nuclear Fusion 51 (2011) 023003, was incorrect and should be replaced by (SEE PAPER)
Date: June 15, 2012
Creator: J..K. Park, M.J. Schaffer, R.J. LaHaye, T.J. Scoville, and J.E. Menard
Object Type: Report
System: The UNT Digital Library
Kansas Energy and Cost Savings for New Single- and Multifamily Homes: 2009 and 2012 IECC as Compared to the 2006 IECC (open access)

Kansas Energy and Cost Savings for New Single- and Multifamily Homes: 2009 and 2012 IECC as Compared to the 2006 IECC

The 2009 and 2012 International Energy Conservation Codes (IECC) yield positive benefits for Kansas homeowners. Moving to either the 2009 or 2012 IECC from the 2006 IECC is cost effective over a 30-year life cycle. On average, Kansas homeowners will save $2,556 over 30 years under the 2009 IECC, with savings still higher at $8,828 with the 2012 IECC. After accounting for upfront costs and additional costs financed in the mortgage, homeowners should see net positive cash flows (i.e., cumulative savings exceeding cumulative cash outlays) in 1 year for both the 2009 and 2012 IECC. Average annual energy savings are $155 for the 2009 IECC and $543 for the 2012 IECC.
Date: June 15, 2012
Creator: Lucas, Robert G.; Taylor, Zachary T.; Mendon, Vrushali V. & Goel, Supriya
Object Type: Report
System: The UNT Digital Library
Virginia Energy and Cost Savings for New Single- and Multifamily Homes: 2012 IECC as Compared to the 2009 Virginia Construction Code (open access)

Virginia Energy and Cost Savings for New Single- and Multifamily Homes: 2012 IECC as Compared to the 2009 Virginia Construction Code

The 2012 International Energy Conservation Code (IECC) yields positive benefits for Virginia homeowners. Moving to the 2012 IECC from the current Virginia Construction Code is cost effective over a 30-year life cycle. On average, Virginia homeowners will save $5,836 with the 2012 IECC. After accounting for upfront costs and additional costs financed in the mortgage, homeowners should see net positive cash flows (i.e., cumulative savings exceeding cumulative cash outlays) in 1 year for the 2012 IECC. Average annual energy savings are $388 for the 2012 IECC.
Date: June 15, 2012
Creator: Lucas, Robert G.; Taylor, Zachary T.; Mendon, Vrushali V. & Goel, Supriya
Object Type: Report
System: The UNT Digital Library
Development of an AC Module System: Final Technical Report (open access)

Development of an AC Module System: Final Technical Report

The GreenRay Inc. program focused on simplifying solar electricity and making it affordable and accessible to the mainstream population. This was accomplished by integrating a solar module, micro-inverter, mounting and monitoring into a reliable, 'plug and play' AC system for residential rooftops, offering the following advantages: (1) Reduced Cost: Reduction in installation labor with fewer components, faster mounting, faster wiring. (2) Maximized Energy Production: Each AC Module operates at its maximum, reducing overall losses from shading, mismatch, or module downtime. (3) Increased Safety. Electrical and fire safety experts agree that AC Modules have significant benefits, with no energized wiring or live connections during installation, maintenance or emergency conditions. (4) Simplified PV for a Broader Group of Installers. Dramatic simplification of design and installation of a solar power system, enabling faster and more efficient delivery of the product into the market through well-established, mainstream channels. This makes solar more accessible to the public. (5) Broadened the Rooftop Market: AC Modules enable solar for many homes that have shading, split roofs, or obstructions. In addition, due to the smaller building block size of 200W vs. 1000W, homeowners with budget limitations can start small and add to their systems over time. Through this …
Date: June 15, 2012
Creator: Kadam, Suparna & Russell, Miles
Object Type: Report
System: The UNT Digital Library
FHR Generic Design Criteria (open access)

FHR Generic Design Criteria

The purpose of this document is to provide an initial, focused reference to the safety characteristics of and a licensing approach for Fluoride-Salt-Cooled High-Temperature Reactors (FHRs). The document does not contain details of particular reactor designs nor does it attempt to identify or classify either design basis or beyond design basis accidents. Further, this document is an initial attempt by a small set of subject matter experts to document the safety and licensing characteristics of FHRs for a larger audience. The document is intended to help in setting the safety and licensing research, development, and demonstration path forward. Input from a wider audience, further technical developments, and additional study will be required to develop a consensus position on the safety and licensing characteristics of FHRs. This document begins with a brief overview of the attributes of FHRs and then a general description of their anticipated safety performance. Following this, an overview of the US nuclear power plant approval process is provided that includes both test and power reactors, as well as the role of safety standards in the approval process. The document next describes a General Design Criteria (GDC)–based approach to licensing an FHR and provides an initial draft set …
Date: June 15, 2012
Creator: Flanagan, G. F.; Holcomb, D. E. & Cetiner, S. M.
Object Type: Report
System: The UNT Digital Library
Elementary Processes Underlying Alpha Channeling in Tokamaks (open access)

Elementary Processes Underlying Alpha Channeling in Tokamaks

Alpha channeling in tokamaks is speculative, but also extraordinarily attractive. Waves that can accomplish this effect have been identified. Key aspects of the theory now enjoy experimental confirmation. This paper will review the elementary processes of wave-particle interactions in plasma that underlie the alpha channeling effect
Date: June 15, 2012
Creator: Fisch, NM.J.
Object Type: Article
System: The UNT Digital Library
Heavy Quarkonium: Progress, Puzzles, and Opportunities (open access)

Heavy Quarkonium: Progress, Puzzles, and Opportunities

None
Date: June 15, 2012
Creator: Brambilla, N.; Eidelman, S.; Heltsley, B. K.; Vogt, R.; Bodwin, G. T.; Eichten, E. et al.
Object Type: Article
System: The UNT Digital Library
ASSESSMENT OF THE ABILITY OF STANDARD SLURRY PUMPS TO MIX MISCIBLE AND IMMISCIBLE LIQUIDS IN TANK 50H (open access)

ASSESSMENT OF THE ABILITY OF STANDARD SLURRY PUMPS TO MIX MISCIBLE AND IMMISCIBLE LIQUIDS IN TANK 50H

Tank 50H is the feed tank for the Saltstone Production Facility (SPF). At present, Tank 50H contains two standard slurry pumps and two Quad Volute slurry pumps. Current requirements and mixing operation is to run three pumps for one hour prior to initiating a feed transfer to SPF. Savannah River Site (SRS) Liquid Waste would like to move one or both of the Quad Volute pumps from Tank 50H to Tank 51H to replace pumps in Tank 51H that are failing. In addition, one of the standard pumps in Tank 50H exhibits high seal leakage and vibration. SRS Liquid Waste requested Savannah River National (SRNL) to conduct a study to evaluate the feasibility of mixing the contents of Tank 50H with one to three standard slurry pumps. To determine the pump requirements to blend miscible and immiscible liquids in Tank 50H, the author reviewed the pilot-scale blending work performed for the Salt Disposition Integration Project (SDIP) and the technical literature, and applied the results to Tank 50H to determine the number, size, and operating parameters needed to blend the tank contents. The conclusions from this analysis are: (1) A single rotating standard slurry pump (with a 13.6 ft{sup 2}/s U{sub …
Date: June 15, 2011
Creator: Poirier, M.
Object Type: Report
System: The UNT Digital Library
Towards tera terra: Terabase sequencing of terrestrial metagenomics (open access)

Towards tera terra: Terabase sequencing of terrestrial metagenomics

Microbial ecologists are taking a metagenomics approach to analyze complex and diverse soil microbial communities.
Date: June 15, 2011
Creator: Jansson, J.
Object Type: Article
System: The UNT Digital Library
Single- and Two-Photon-Induced Processes at the B Factories (open access)

Single- and Two-Photon-Induced Processes at the B Factories

We discuss single- and two-photon-induced processes in e{sup +}e{sup -} annihilations with center-of-mass energy near 10.58 GeV from the BaBar and Belle experiments. In particular, we present experimental results from two-photon physics of {gamma}{gamma} {yields} {pi}{sup 0}{pi}{sup 0} and {gamma}{gamma}* {yields} {pi}{sup 0}. We also review the observation of the Two-Virtual-Photon-Annihilation process (e{sup +}e{sup -} {yields} {rho}{sup 0}{rho}{sup 0} and e{sup +}e{sup -} {yields} {phi}{rho}{sup 0}) and the observation of e{sup +}e{sup -} {yields} {rho}{sup +}{rho}{sup -}, which should be primarily a one virtual photon process, but whose angular distributions may imply potential interference effects.
Date: June 15, 2012
Creator: Li, Selina Z.
Object Type: Article
System: The UNT Digital Library
Microbial gene functions enriched in the Deepwater Horizon deep-sea oil plume (open access)

Microbial gene functions enriched in the Deepwater Horizon deep-sea oil plume

The Deepwater Horizon oil spill in the Gulf of Mexico is the deepest and largest offshore spill in U.S. history and its impacts on marine ecosystems are largely unknown. Here, we showed that the microbial community functional composition and structure were dramatically altered in a deep-sea oil plume resulting from the spill. A variety of metabolic genes involved in both aerobic and anaerobic hydrocarbon degradation were highly enriched in the plume compared to outside the plume, indicating a great potential for intrinsic bioremediation or natural attenuation in the deep-sea. Various other microbial functional genes relevant to carbon, nitrogen, phosphorus, sulfur and iron cycling, metal resistance, and bacteriophage replication were also enriched in the plume. Together, these results suggest that the indigenous marine microbial communities could play a significant role in biodegradation of oil spills in deep-sea environments.
Date: June 15, 2011
Creator: Lu, Z.; Deng, Y.; Nostrand, J. D. Van; He, Z.; Voordeckers, J.; Zhou, A. et al.
Object Type: Article
System: The UNT Digital Library
Texas Energy and Cost Savings for New Single- and Multifamily Homes: 2012 IECC as Compared to the 2009 IECC (open access)

Texas Energy and Cost Savings for New Single- and Multifamily Homes: 2012 IECC as Compared to the 2009 IECC

The 2012 International Energy Conservation Code (IECC) yields positive benefits for Texas homeowners. Moving to the 2012 IECC from the 2009 IECC is cost effective over a 30-year life cycle. On average, Texas homeowners will save $3,456 with the 2012 IECC. After accounting for upfront costs and additional costs financed in the mortgage, homeowners should see net positive cash flows (i.e., cumulative savings exceeding cumulative cash outlays) in 2 years for the 2012 IECC. Average annual energy savings are $259 for the 2012 IECC.
Date: June 15, 2012
Creator: Lucas, Robert G.; Taylor, Zachary T.; Mendon, Vrushali V. & Goel, Supriya
Object Type: Report
System: The UNT Digital Library
Carbon-14 Bomb Pulse Dating (open access)

Carbon-14 Bomb Pulse Dating

Abstract: Atmospheric testing of nuclear weapons during the 1950s and early 1960s doubled the concentration of carbon-14 in the atmosphere and created a pulse that labeled everything alive since 1955 as carbon moved up the food chain. The variation in carbon-14 concentration in time is well-documented and can be used to chronologically date all biological materials since the mid-1950s.
Date: June 15, 2012
Creator: Buchholz, Bruce A.
Object Type: Book Chapter
System: The UNT Digital Library
ECRH/EBWH SYSTEM FOR NSTX- (open access)

ECRH/EBWH SYSTEM FOR NSTX-

The National Spherical Torus Experiment Upgrade (NSTX-U) will operate at an axial toroidal field of up to 1 T, about twice the field available on NSTX. A 28 GHz electron cylotron resonance heating (ECRH) system is currently being planned for NSTX-U. A 1 MW 28 GHz gyrotron will be employed. Intially the system will use short, 10-50 ms, 1 MW pulses for ECRH-assisted discharge start-up. Later the pulse length will be extended to 1-5 s to study electron Bernstein wave heating (EBWH) during the plasma current flat top. A mirror launcher will be used to couple microwave power to the plasma via O-mode to the slow X-mode to EBW (O-X-B) double mode conversion. This paper presents a pre-conceptual design for the ECRH/EBWH system proposed for NSTX-U and includes ray tracing and Fokker-Planck modeling results for 28 GHz ECRH during plasma start-up and EBW heating and current drive during the plasma current flattop of a NSTX-U advanced H-mode plasma scenario.
Date: June 15, 2012
Creator: Taylor, G.; Ellis, R. A.; Harvey, R. W.; Hosea, J. C. & Smirnov, A. P.
Object Type: Report
System: The UNT Digital Library
Atomic data for the ITER Core Imaging X-ray Spectrometer (open access)

Atomic data for the ITER Core Imaging X-ray Spectrometer

The parameters of the ITER core plasmas will be measured using the Core Imaging X-ray Spectrometer (CIXS), a high-resolution crystal spectrometer focusing on the L-shell spectra of highly ionized tungsten atoms. In order to correctly infer the plasma properties accurate atomic data are required. Here, some aspects of the underlying physics are discussed using experimental data and theoretical predictions from modeling.
Date: June 15, 2012
Creator: Clementson, J.; Beiersdorfer, P.; Biedermann, C.; Bitter, M.; Delgado-Aparicio, L. F.; Graf, A. et al.
Object Type: Article
System: The UNT Digital Library
Iowa Energy and Cost Savings for New Single- and Multifamily Homes: 2012 IECC as Compared to the 2009 IECC (open access)

Iowa Energy and Cost Savings for New Single- and Multifamily Homes: 2012 IECC as Compared to the 2009 IECC

The 2012 International Energy Conservation Code (IECC) yields positive benefits for Iowa homeowners. Moving to the 2012 IECC from the 2009 IECC is cost effective over a 30-year life cycle. On average, Iowa homeowners will save $7,573 with the 2012 IECC. After accounting for upfront costs and additional costs financed in the mortgage, homeowners should see net positive cash flows (i.e., cumulative savings exceeding cumulative cash outlays) in 1 year for the 2012 IECC. Average annual energy savings are $454 for the 2012 IECC.
Date: June 15, 2012
Creator: Lucas, Robert G.; Taylor, Zachary T.; Mendon, Vrushali V. & Goel, Supriya
Object Type: Report
System: The UNT Digital Library
Genetic dissection of bioenerrgy traits in sorghum (open access)

Genetic dissection of bioenerrgy traits in sorghum

Specific Objectives: 1. To identify the gene(s) underlying a major QTL for stem sugar concentration located on chromosome 3. 2. To identify QTL for stem juice volume and stalk sugar concentration and to identify the underlying genes. 3. To classify 60 novel sorghum bmr mutants from the USDA TILLING population in allelic groups based on cell wall chemistry and allelism tests. 4. To select representative bmr mutants from each allelic group and selected NIR spectral mutants for their potential value as feedstock for ethanol production. 5. To clone and characterize those Bmr genes that represent loci other than Bmr12 and Bmr6 using a mapping and a candidate gene approach. Objective 1 The experiments for this objective are largely complete and the data have been analyzed. Data interpretation and follow-up experiments are still in progress. A manuscript is in preparation (Vermerris et al.; see publication list for full details). The main results are: 1) 16 cDNA libraries were prepared and sequenced at Cornell University. The libraries represent internode tissue and flag leaf tissue at booting, internode tissue and peduncle at soft-dough stage, from two plants per sampling time with the Rio allele for the QTL on chromosome 3, and two plants …
Date: June 15, 2012
Creator: Vermerris, Wilfred; Kresovich, Stephen; Murray, Seth; Pedersen, Jeffery; Rooney, William & Sattler, Scott.
Object Type: Report
System: The UNT Digital Library
Ferrite-Cored Solenoidal Induction Coil Sensor for BUD (MM-1667) (open access)

Ferrite-Cored Solenoidal Induction Coil Sensor for BUD (MM-1667)

We have designed and lab tested a new ferrite cored induction coil sensor for measuring the secondary fields from metallic UXO with the BUD system. The objective was to replace the 5-inch diameter air-cored coils in the BUD system with smaller sensors that would allow the placement of multiple sensors in the smaller package of the new BUD hand-held system. A ferrite-cored solenoidal coil of length L can easily be made to have sensitivity and noise level roughly the same as an air-cored coil of a diameter on the same order as L. A ferrite-cored solenoidal coil can easily have a feedback configuration to achieve critical damping. The feedback configuration leads to a very stable response. Feedback ferrite-cored solenoidal coils show very little interaction as long as they are separated by one half their length.
Date: June 15, 2011
Creator: Morrison, F.; Becker, A.; Conti, U. & Gasperikova, E.
Object Type: Report
System: The UNT Digital Library
Nanosensors as Reservoir Engineering Tools to Map Insitu Temperature Distributions in Geothermal Reservoirs (open access)

Nanosensors as Reservoir Engineering Tools to Map Insitu Temperature Distributions in Geothermal Reservoirs

The feasibility of using nanosensors to measure temperature distribution and predict thermal breakthrough in geothermal reservoirs is addressed in this report. Four candidate sensors were identified: melting tin-bismuth alloy nanoparticles, silica nanoparticles with covalently-attached dye, hollow silica nanoparticles with encapsulated dye and impermeable melting shells, and dye-polymer composite time-temperature indicators. Four main challenges associated with the successful implementation of temperature nanosensors were identified: nanoparticle mobility in porous and fractured media, the collection and detection of nanoparticles at the production well, engineering temperature sensing mechanisms that are both detectable and irreversible, and inferring the spatial geolocation of temperature measurements in order to map temperature distribution. Initial experiments were carried out to investigate each of these challenges. It was demonstrated in a slim-tube injection experiment that it is possible to transport silica nanoparticles over large distances through porous media. The feasibility of magnetic collection of nanoparticles from produced fluid was evaluated experimentally, and it was estimated that 3% of the injected nanoparticles were recovered in a prototype magnetic collection device. An analysis technique was tailored to nanosensors with a dye-release mechanism to estimate temperature measurement geolocation by analyzing the return curve of the released dye. This technique was used in a hypothetical …
Date: June 15, 2011
Creator: Ames, Morgan.
Object Type: Report
System: The UNT Digital Library
Warm Water Oxidation Verification - Scoping and Stirred Reactor Tests (open access)

Warm Water Oxidation Verification - Scoping and Stirred Reactor Tests

Scoping tests to evaluate the effects of agitation and pH adjustment on simulant sludge agglomeration and uranium metal oxidation at {approx}95 C were performed under Test Instructions(a,b) and as per sections 5.1 and 5.2 of this Test Plan prepared by AREVA. (c) The thermal testing occurred during the week of October 4-9, 2010. The results are reported here. For this testing, two uranium-containing simulant sludge types were evaluated: (1) a full uranium-containing K West (KW) container sludge simulant consisting of nine predominant sludge components; (2) a 50:50 uranium-mole basis mixture of uraninite [U(IV)] and metaschoepite [U(VI)]. This scoping study was conducted in support of the Sludge Treatment Project (STP) Phase 2 technology evaluation for the treatment and packaging of K-Basin sludge. The STP is managed by CH2M Hill Plateau Remediation Company (CHPRC) for the U.S. Department of Energy. Warm water ({approx}95 C) oxidation of sludge, followed by immobilization, has been proposed by AREVA and is one of the alternative flowsheets being considered to convert uranium metal to UO{sub 2} and eliminate H{sub 2} generation during final sludge disposition. Preliminary assessments of warm water oxidation have been conducted, and several issues have been identified that can best be evaluated through laboratory …
Date: June 15, 2011
Creator: Braley, Jenifer C.; Sinkov, Sergey I.; Delegard, Calvin H. & Schmidt, Andrew J.
Object Type: Report
System: The UNT Digital Library
HIV/AIDS Information Resources from the National Library of Medicine-STOP (open access)

HIV/AIDS Information Resources from the National Library of Medicine-STOP

The HIV/AIDS Information Resources from the National Library of Medicine training is designed specifically for the UNCFSP HBCU Screening, Testing, Outreach, and Prevention (STOP) HIV/AIDS Program project members to provide valuable health information resources from the National Library of Medicine and other reliable sources to increase awareness of the wealth of treatment information and educational materials that are available on the Internet and to improve prevention and treatment education for their clients. These resources will also meet the needs of community-based organizations
Date: June 15, 2010
Creator: Templin-Branner, W. and N. Dancy
Object Type: Book
System: The UNT Digital Library
Averaged Description of Flow (Steady and Transient) and Nonreactive Solute Transport in Random Porous Media (open access)

Averaged Description of Flow (Steady and Transient) and Nonreactive Solute Transport in Random Porous Media

In previous papers (Shvidler and Karasaki, 1999, 2001, 2005, and 2008) we presented and analyzed an approach for finding the general forms of exactly averaged equations of flow and transport in porous media. We studied systems of basic equations for steady flow with sources in unbounded domains with stochastically homogeneous conductivity fields. A brief analysis of exactly averaged equations of nonsteady flow and nonreactive solute transport was also presented. At the core of this approach is the existence of appropriate random Green's functions. For example, we showed that in the case of a 3-dimensional unbounded domain the existence of appropriate random Green's functions is sufficient for finding the exact nonlocal averaged equations for flow velocity using the operator with a unique kernel-vector. Examination of random fields with global symmetry (isotropy, transversal isotropy and orthotropy) makes it possible to describe significantly different types of averaged equations with nonlocal unique operators. It is evident that the existence of random Green's functions for physical linear processes is equivalent to assuming the existence of some linear random operators for appropriate stochastic equations. If we restricted ourselves to this assumption only, as we have done in this paper, we can study the processes in any …
Date: June 15, 2011
Creator: Schvidler, M. & Karasaki, K.
Object Type: Report
System: The UNT Digital Library
Phase-field Model for Interstitial Loop Growth Kinetics and Thermodynamic and Kinetic Models of Irradiated Fe-Cr Alloys (open access)

Phase-field Model for Interstitial Loop Growth Kinetics and Thermodynamic and Kinetic Models of Irradiated Fe-Cr Alloys

Microstructure evolution kinetics in irradiated materials has strongly spatial correlation. For example, void and second phases prefer to nucleate and grow at pre-existing defects such as dislocations, grain boundaries, and cracks. Inhomogeneous microstructure evolution results in inhomogeneity of microstructure and thermo-mechanical properties. Therefore, the simulation capability for predicting three dimensional (3-D) microstructure evolution kinetics and its subsequent impact on material properties and performance is crucial for scientific design of advanced nuclear materials and optimal operation conditions in order to reduce uncertainty in operational and safety margins. Very recently the meso-scale phase-field (PF) method has been used to predict gas bubble evolution, void swelling, void lattice formation and void migration in irradiated materials,. Although most results of phase-field simulations are qualitative due to the lake of accurate thermodynamic and kinetic properties of defects, possible missing of important kinetic properties and processes, and the capability of current codes and computers for large time and length scale modeling, the simulations demonstrate that PF method is a promising simulation tool for predicting 3-D heterogeneous microstructure and property evolution, and providing microstructure evolution kinetics for higher scale level simulations of microstructure and property evolution such as mean field methods. This report consists of two parts. …
Date: June 15, 2011
Creator: Li, Yulan; Hu, Shenyang Y.; Sun, Xin & Khaleel, Mohammad A.
Object Type: Report
System: The UNT Digital Library