Project W-314 specific test and evaluation plan for SN-632 transfer line 241-AX-B to 241-AZ-02A (open access)

Project W-314 specific test and evaluation plan for SN-632 transfer line 241-AX-B to 241-AZ-02A

This Specific Test and Evaluation Plan (STEP) defines the test and evaluation activities encompassing the installation of transfer line SN-632 for the W-314 Project.
Date: March 20, 1998
Creator: Hays, W. H.
Object Type: Report
System: The UNT Digital Library
Irradiation Processing Department monthly record report, February 1957 (open access)

Irradiation Processing Department monthly record report, February 1957

This document details activities of the Irradiation Processing Department for the month of February 1957. (FI)
Date: March 20, 1957
Creator: Greninger, A. B.
Object Type: Report
System: The UNT Digital Library
Integrated fluxes on sodium-beryllium pieces irradiated under HAPO-210 (open access)

Integrated fluxes on sodium-beryllium pieces irradiated under HAPO-210

None
Date: March 20, 1959
Creator: DeMers, A. E.
Object Type: Report
System: The UNT Digital Library
Math and Science School (MASS): A Department of Energy enhancement program to benefit students from Native American Tribes affected by the Hanford Reservation. Progress report (open access)

Math and Science School (MASS): A Department of Energy enhancement program to benefit students from Native American Tribes affected by the Hanford Reservation. Progress report

Math and Science School is a program designed to enrich and encourage elementary students and teachers of the Confederated Tribes of the Umatilla Indian Reservation in the areas of mathematics and science activities. By providing access to special hands-on workshop sessions held in the mobile science laboratory at the school sites during the school year for students and teachers and with a separate summer inservice program for students, elementary children and teachers are encouraged to explore the fascination of science and the utility of mathematics through use of integrated curricula. The Department of Energy grant underwrites the instructional costs of this system while the grantee provides the mobile laboratory and the majority of the materials.
Date: March 20, 1993
Creator: Jaeger, M.
Object Type: Report
System: The UNT Digital Library
Analysis of Induced Gas Released During Retrieval of Hanford Double-Shell Tank Waste (open access)

Analysis of Induced Gas Released During Retrieval of Hanford Double-Shell Tank Waste

Radioactive waste is scheduled to be retrieved from Hanford double-shell tanks AN-103, AN-104, AN-105 and AW-101 to the vitrification plant beginning about 2009. Retrieval may involve decanting the supernatant liquid and/or mixing the waste with jet pumps. In these four tanks, which contain relatively large volumes of retained gas, both of these operations are expected to induce buoyant displacement gas releases that can potentially raise the tank headspace hydrogen concentration to very near the lower flammability limit. This report describes the theory and detailed physical models for both the supernate decant and jet mixing processes and presents the results from applying the models to these operations in the four tanks. The technical bases for input parameter distributions are elucidated.
Date: March 20, 2002
Creator: Wells, Beric E. (BATTELLE (PACIFIC NW LAB)); Cuta, Judith M. (BATTELLE (PACIFIC NW LAB)); Hartley, Stacey A. (BATTELLE (PACIFIC NW LAB)); Mahoney, Lenna A. (BATTELLE (PACIFIC NW LAB)); Meyer, Perry A. (BATTELLE (PACIFIC NW LAB)) & Stewart, Charles W. (BATTELLE (PACIFIC NW LAB))
Object Type: Report
System: The UNT Digital Library
Demonstration of an advanced circulation fludized bed coal combustor phase 1: Cold model study. Final report (open access)

Demonstration of an advanced circulation fludized bed coal combustor phase 1: Cold model study. Final report

It was found that there was a strong dependence of the density profile on the secondary air injection location and that there was a pronounced solid separation from the conveying gas, due to the swirl motion. Furthermore, the swirl motion generated strong internal circulation patterns and higher slip velocities than in the case of nonswirl motion as in an ordinary circulating fluidized bed. Radial solids flux profiles were measured at different axial locations. The general radial profile in a swirling circulating fluidized bed indicated an increased downward flow of solids near the bed walls, and strong variations in radial profiles along the axial height. For swirl numbers less than 0.9, which is typical for swirling circulating fluidized beds, there is no significant increase in erosion due to swirl motion inside the bed. Pending further investigation of swirl motion with combustion, at least from our cold model studies, no disadvantages due to the introduction of swirl motion were discovered.
Date: March 20, 1993
Creator: Govind, R.
Object Type: Report
System: The UNT Digital Library
Selective flotation of fossil resin from western coal. A special report comprising: Monthly report for December 1991--April 1992 and Quarterly reports for December 1, 1991--February 29, 1992 (open access)

Selective flotation of fossil resin from western coal. A special report comprising: Monthly report for December 1991--April 1992 and Quarterly reports for December 1, 1991--February 29, 1992

The test program has demonstrated that: (1) technically, the new flotation technologies discovered at the University of Utah and then improved upon by Advanced Processing Technologies, Inc. provide a highly efficient means to selectively recover fossil resin from coal. The proof-of-concept continuous flotation circuit resulted in fossil resin recovery with the same separation efficiency as was obtained from laboratory bench-scale testing (more than 80% recovery at about 80% concentrate grade); and (2) economically, the selective flotation process has been shown to be sufficiently profitable to justify the development of a fossil resin industry based on this new flotation process. The proof-of-concept testing has resulted in significant interest from several coal mining companies and has sparked the desire of local and state government to establish a fossil resin industry in the Wasatch Plateau coal field. In this view, the results from the current proof-of-concept testing program have been successful. This special report provides theoretical and analytical data on some surface chemistry work pertinent to fossil resin characterization, and other efforts carried out during the past months.
Date: March 20, 1992
Creator: Jensen, G. F. & Miller, J. D.
Object Type: Report
System: The UNT Digital Library
New Constraints on Isospin-Violating Dark Matter (open access)

New Constraints on Isospin-Violating Dark Matter

None
Date: March 20, 2013
Creator: Kumar, Jason; U., /Hawaii; Sanford, David; /UC, Irvine; Strigari, Louis E. & /KIPAC, Menlo Park /Stanford U., Phys. Dept.
Object Type: Article
System: The UNT Digital Library
Selective flotation of fossil resin from western coal (open access)

Selective flotation of fossil resin from western coal

The test program has demonstrated that: (1) technically, the new flotation technologies discovered at the University of Utah and then improved upon by Advanced Processing Technologies, Inc. provide a highly efficient means to selectively recover fossil resin from coal. The proof-of-concept continuous flotation circuit resulted in fossil resin recovery with the same separation efficiency as was obtained from laboratory bench-scale testing (more than 80% recovery at about 80% concentrate grade); and (2) economically, the selective flotation process has been shown to be sufficiently profitable to justify the development of a fossil resin industry based on this new flotation process. The proof-of-concept testing has resulted in significant interest from several coal mining companies and has sparked the desire of local and state government to establish a fossil resin industry in the Wasatch Plateau coal field. In this view, the results from the current proof-of-concept testing program have been successful. This special report provides theoretical and analytical data on some surface chemistry work pertinent to fossil resin characterization, and other efforts carried out during the past months.
Date: March 20, 1992
Creator: Jensen, G. F. & Miller, J. D.
Object Type: Report
System: The UNT Digital Library
Chromium isotopes as indicators of hexavalent chromium reduction (open access)

Chromium isotopes as indicators of hexavalent chromium reduction

This is the final report for a university research project which advanced development of a new technology for identifying chemical reduction of hexavalent chromium contamination in groundwater systems. Reduction renders mobile and toxic hexavalent chromium immobile and less toxic. The new method uses stable isotope ratio measurements, which are made using multicollector ICP-mass spectrometry. The main objectives of this project were completed during the project period and two peer-reviewed articles were published to disseminate the information gained.
Date: March 20, 2012
Creator: Johnson, Thomas M.
Object Type: Report
System: The UNT Digital Library
Advanced Combustion Diagnostics and Control for Furnaces, Fired Heaters and Boilers (open access)

Advanced Combustion Diagnostics and Control for Furnaces, Fired Heaters and Boilers

The objective of this project was to develop and apply enabling tools and methods towards advanced combustion diagnostics and control of fired-equipment in large-scale petrochemical manufacturing. There are a number of technology gaps and opportunities for combustion optimization, including technologies involving advanced in-situ measurements, modeling, and thermal imaging. These technologies intersect most of manufacturing and energy systems within the chemical industry. This project leveraged the success of a previous DOE funded project led by Dow, where we co-developed an in-situ tunable diode laser (TDL) analyzer platform (with Analytical Specialties Inc, now owned by Yokogawa Electric Corp.). The TDL platform has been tested and proven in a number of combustion processes within Dow and outside of Dow. The primary focus of this project was on combustion diagnostics and control applied towards furnaces, fired heaters and boilers. Special emphasis was placed on the development and application of in-situ measurements for O2, CO and methane since these combustion gases are key variables in optimizing and controlling combustion processes safely. Current best practice in the industry relies on measurements that suffer from serious performance gaps such as limited sampling volume (point measurements), poor precision and accuracy, and poor reliability. Phase I of the project …
Date: March 20, 2010
Creator: Tate, J. D.; Le, Linh D.; Knittel,Trevor & Cowie, Alan
Object Type: Report
System: The UNT Digital Library
Capacitance Flatness Gauge Prototype (open access)

Capacitance Flatness Gauge Prototype

The DO calorimeter has within it thousands of large plates. Our ability to construct the detector depends on the flatness of these plates. The performance of the detector depends on the flatness of the plates after they are assembled into a module. It has been proposed that the flatness of the plates before and after assembly could be determined by measuring capacitance. This device demonstrates the viability of using capacitance to measure the flatness of individual plates. No attempt has been made to extrapolate the results to measuring the flatness of the plates once they are in a module.
Date: March 20, 1986
Creator: Pitas, A. & Angstadt, R.
Object Type: Report
System: The UNT Digital Library
W+n-Jet Predictions With MC@NLO in Sherpa (open access)

W+n-Jet Predictions With MC@NLO in Sherpa

Results for the production of W-bosons in conjunction with up to three jets including parton shower corrections are presented and compared to recent LHC data. These results consistently incorporate the full next-to leading order QCD corrections through the MC{at}NLO method, as implemented in the SHERPA event generator, with the virtual corrections obtained from the BLACKHAT library.
Date: March 20, 2012
Creator: Hoeche, Stefan; Krauss, Frank; Schonherr, Marek & Siegert, Frank
Object Type: Article
System: The UNT Digital Library
Study of CP violation in Dalitz-plot analyses of B0 to K K-KS, B to K K-K , and B to KSKSK (open access)

Study of CP violation in Dalitz-plot analyses of B0 to K K-KS, B to K K-K , and B to KSKSK

We perform amplitude analyses of the decays B{sup 0} {yields} K{sup +}K{sup -}K{sub s}{sup 0}, B{sup +} {yields} K{sup +}K{sup -}K{sup +}, and B{sup +} {yields}, and measure CP-violating parameters and partial branching fractions. The results are based on a data sample of approximately 470 x 10{sup 6} B{bar B} decays, collected with the BABAR detector at the PEP-II asymmetric-energy B factory at the SLAC National Accelerator Laboratory. For B{sup +} {yields} K{sup +}K{sup -}K{sup +}, we find a direct CP asymmetry in B{sup +} {yields} {phi}(1020)K{sup +} of A{sub CP} = (12.8 {+-} 4.4 {+-} 1.3)%, which differs from zero by 2.8{sigma}. For B{sup 0} {yields} K{sup +}K{sup -}K{sub s}{sup 0}, we measure the CP-violating phase {beta}{sub eff} ({phi}(1020)K{sub s}{sup 0}) = (21 {+-} 6 {+-} 2){sup o}. For B{sup +} {yields} K{sub s}{sup 0}K{sub s}{sup 0}K{sup +}, we measure an overall direct CP asymmetry of A{sub CP} = (4{sub -5}{sup +4} {+-} 2)%. We also perform an angular-moment analysis of the three channels, and determine that the f{sub X}(1500) state can be described well by the sum of the resonances f{sub 0}(1500), f{prime}{sub 2}(1525), and f{sub 0}(1710).
Date: March 20, 2012
Creator: Lees, J.P.
Object Type: Article
System: The UNT Digital Library
Hiding a Heavy Higgs Boson at the 7 TeV LHC (open access)

Hiding a Heavy Higgs Boson at the 7 TeV LHC

A heavy Standard Model Higgs boson is not only disfavored by electroweak precision observables but is also excluded by direct searches at the 7 TeV LHC for a wide range of masses. Here, we examine scenarios where a heavy Higgs boson can be made consistent with both the indirect constraints and the direct null searches by adding only one new particle beyond the Standard Model. This new particle should be a weak multiplet in order to have additional contributions to the oblique parameters. If it is a color singlet, we find that a heavy Higgs with an intermediate mass of 200-300 GeV can decay into the new states, suppressing the branching ratios for the standard model modes, and thus hiding a heavy Higgs at the LHC. If the new particle is also charged under QCD, the Higgs production cross section from gluon fusion can be reduced significantly due to the new colored particle one-loop contribution. Current collider constraints on the new particles allow for viable parameter space to exist in order to hide a heavy Higgs boson. We categorize the general signatures of these new particles, identify favored regions of their parameter space and point out that discovering or excluding …
Date: March 20, 2012
Creator: Bai, Yang; Fan, JiJi & Hewett, JoAnne L.
Object Type: Article
System: The UNT Digital Library
The HARNESS Workbench: Unified and Adaptive Access to Diverse HPC Platforms (open access)

The HARNESS Workbench: Unified and Adaptive Access to Diverse HPC Platforms

The primary goal of the Harness WorkBench (HWB) project is to investigate innovative software environments that will help enhance the overall productivity of applications science on diverse HPC platforms. Two complementary frameworks were designed: one, a virtualized command toolkit for application building, deployment, and execution, that provides a common view across diverse HPC systems, in particular the DOE leadership computing platforms (Cray, IBM, SGI, and clusters); and two, a unified runtime environment that consolidates access to runtime services via an adaptive framework for execution-time and post processing activities. A prototype of the first was developed based on the concept of a 'system-call virtual machine' (SCVM), to enhance portability of the HPC application deployment process across heterogeneous high-end machines. The SCVM approach to portable builds is based on the insertion of toolkit-interpretable directives into original application build scripts. Modifications resulting from these directives preserve the semantics of the original build instruction flow. The execution of the build script is controlled by our toolkit that intercepts build script commands in a manner transparent to the end-user. We have applied this approach to a scientific production code (Gamess-US) on the Cray-XT5 machine. The second facet, termed Unibus, aims to facilitate provisioning and aggregation …
Date: March 20, 2012
Creator: Sunderam, Vaidy S.
Object Type: Report
System: The UNT Digital Library
Dark Matter Profiles and Annihilation in Dwarf Spheroidal Galaxies: Prospectives for Present and Future Gamma-Ray Observatories - I. the Classical DSphs (open access)

Dark Matter Profiles and Annihilation in Dwarf Spheroidal Galaxies: Prospectives for Present and Future Gamma-Ray Observatories - I. the Classical DSphs

None
Date: March 20, 2013
Creator: Charbonnier, A.; /Paris U., VI-VII; Combet, C.; U., /Leicester; Daniel, M.; U., /Durham et al.
Object Type: Article
System: The UNT Digital Library
Electron Coherence in Mesoscopic Structures (open access)

Electron Coherence in Mesoscopic Structures

The recent rapid progress in nanofabrication and experimental techniques made it possible to investigate a variety of meso-- and nano--scale systems, which were unavailable only a few years ago. Examples include fabrication of high-quality quantum wires in semiconductor heterostructures, of nanoscale hybrid superconductor--normal metal structures, and of a variety of novel (and much smaller) quantum dot and q-bit designs. These technological advances have led to formulation of a number of condensed matter theory problems which are equally important for applications and for the fundamental science. The present proposal aims at filling the exposed gaps in knowledge and at facilitating further development of experimental and theoretical physics of nanoscale structures. Specifically, the two PIs address the following issues: (i) The theory of interacting electrons in a quantum wire which accounts adequately for the non-linear dispersion relation of the electrons. The existing approaches rely on models with {\em linearized} electron spectrum, which fall short of addressing a growing list of experimentally relevant phenomena. (ii) Dynamics of hybrid normal--superconducting systems. A reliable treatment of dissipative phenomena in such structures is not developed as of yet, while rapid progress in fabrication makes finding the proper theoretical treatment methods highly desirable. (iii)~The fundamental limits on …
Date: March 20, 2011
Creator: Kamenev, Alex & Glazman, Leonid
Object Type: Report
System: The UNT Digital Library
Expansion of the Genomic Encyclopedia of Bacteria and Archaea (open access)

Expansion of the Genomic Encyclopedia of Bacteria and Archaea

To date the vast majority of bacterial and archaeal genomes sequenced are of rather limited phylogenetic diversity as they were chosen based on their physiology and/ or medical importance. The Genomic Encyclopedia of Bacteria and Archaea (GEBA) project (Wu et al. 2009) is aimed to systematically filling the gaps of the tree of life with phylogenetically diverse reference genomes. However more than 99percent of microorganisms elude current culturing attempts, severely limiting the ability to recover complete or even partial genomes of these largely mysterious species. These limitations gave rise to the GEBA uncultured project. Here we propose to use single cell genomics to massively expand the Genomic Encyclopedia of Bacteria and Archaea by targeting 80 single cell representatives of uncultured candidate phyla which have no or very few cultured representatives. Generating these reference genomes of uncultured microbes will dramatically increase the discovery rate of novel protein families and biological functions, shed light on the numerous underrepresented phyla that likely play important roles in the environment, and will assist in improving the reconstruction of the evolutionary history of Bacteria and Archaea. Moreover, these data will improve our ability to interpret metagenomics sequence data from diverse environments, which will be of tremendous …
Date: March 20, 2011
Creator: Rinke, Christian; Sczyrba, Alex; Malfatti, Stephanie; Lee, Janye; Cheng, Jan-Fang; Stepanauskas, Ramunas et al.
Object Type: Article
System: The UNT Digital Library
SRNL LDRD Program Report 2012 (open access)

SRNL LDRD Program Report 2012

Progress is reported on 20 different projects in a wide variety of areas ranging from nuclear chemistry and radiation detection to energy storage and renewable energy.
Date: March 20, 2013
Creator: Hoffman, E.
Object Type: Report
System: The UNT Digital Library
Enhancing trappable antiproton populations through deceleration and frictional cooling (open access)

Enhancing trappable antiproton populations through deceleration and frictional cooling

CERN currently delivers antiprotons for trapping experiments with the Antiproton Decelerator (AD), which slows the antiprotons down to about 5 MeV.This energy is currently too high for direct trapping, and thick foils are used to slow down the beam to energies which can be trapped.To allow further deceleration to $\sim 100 \;\mbox{keV}$, CERN is initiating the construction of ELENA,consisting of a ring which will combine RF deceleration and electron cooling capabilities. We describe a simple frictionalcooling scheme that can serve to provide significantly improved trapping efficiency, either directly from the AD or first usinga standard deceleration mechanism (induction linac or RFQ). This scheme could be implemented in a short time.The device itself is short in length, uses accessible voltages, and at reasonable cost could serve in the interim beforeELENA becomes operational, or possibly in lieu of ELENA for some experiments. Simple theory and simulations provide a preliminary assessment of theconcept and its strengths and limitations, and highlight important areas for experimental studies, in particular to pin down the level of multiplescattering for low-energy antiprotons. We show that the frictional cooling scheme can provide a similar energy spectrum to that of ELENA,but with higher transverse emittances.
Date: March 20, 2012
Creator: Zolotorev, Max; Sessler, Andrew; Penn, Gregory; Wurtele, Jonathan S. & Charman, Andrew E.
Object Type: Article
System: The UNT Digital Library
3d segmentation of rodent brain structures using active volume model with shape priors; conference paper (open access)

3d segmentation of rodent brain structures using active volume model with shape priors; conference paper

N/A
Date: March 20, 2011
Creator: Zhang, Shaoting; Huang, J.; Uzunbas, M.; Shen, T.; Delis, F.; Volkow, N. D. et al.
Object Type: Article
System: The UNT Digital Library
RIMS Analysis of Ion Induced Fragmentation of Molecules Sputtered from an Enriched U3O8 Matrix (open access)

RIMS Analysis of Ion Induced Fragmentation of Molecules Sputtered from an Enriched U3O8 Matrix

None
Date: March 20, 2012
Creator: Willingham, D.; Savina, M. R.; Knight, K. B.; Pellin, M. J. & Hutcheon, I. D.
Object Type: Article
System: The UNT Digital Library
Participation in Muon Collider/Neutrino Factory Research and Development (open access)

Participation in Muon Collider/Neutrino Factory Research and Development

Muon accelerators hold great promise for the future of high energy physics and their construction can be staged to support a broad physics program. Great progress was made over the past decade toward developing the technology for muon beam cooling which is one of the main challenges for building such facilities.
Date: March 20, 2013
Creator: Torun, Yagmur
Object Type: Report
System: The UNT Digital Library