AFBC Roadbed Project groundwater data (open access)

AFBC Roadbed Project groundwater data

TVA permitted the use of AFBC material in a section of roadbed at Paducah, Kentucky, for the purpose of demonstrating its usability as a roadbed base. To determine if the material would leach and contaminate groundwater, four wells and seven lysimeters were installed beside and in the roadbed base material. In August 1991, TVA Field Engineering visited the AFBC Roadbed Project to collect samples and water quality data. The goal was to collect samples and data from four wells and seven lysimeters. All attempts to collect samples from the lysimeters failed with one exemption. All attempts to collect samples from the groundwater wells were successful. The analytical data from the four wells and one lysimeter are also attached. The well data is typical of groundwater in the Paducah, Kentucky area indicating that it was not affected by the AFBC roadbed material. The analysis of the lysimeter shows concentrations for iron and manganese above normal background levels, however, the data do not reflect significant concentrations of these heavy metals. Also, the difficulty in obtaining the lysimeter samples and the fact that the samples had to be composited to obtain sufficient quantity to analyze would make a qualitative evaluation of the data …
Date: August 21, 1992
Creator: Carpenter, W.
Object Type: Report
System: The UNT Digital Library
AFCI UFP, Final Technical Report DE-FC07-00AL67053 (open access)

AFCI UFP, Final Technical Report DE-FC07-00AL67053

The project ''Creating an Educational Consortium to Support the Recruitment and Retention of Expertise for the Nuclear Weapons Complex'' was also known as the Advanced Fuel Cycle Initiative (AFCI) University Fellowship Program. Since its inception, the Advanced Fuel Cycle Initiative program and its predecessor, the Advanced Accelerator Applications (AAA) program, have engaged university researchers and students in the sciences necessary to answer technical questions related to reducing high-level waste volumes, optimizing the economics and performance of Yucca Mountain, reducing the technical need for a second repository, reducing the long-term inventories of plutonium in spent fuel, and enabling the proliferation-resistant recovery of the energy contained in spent fuel. The Advanced Fuel Cycle University Fellowship Program is intended to support top students across the nation in a variety of disciplines that will be required to support transmutation research and technology development in the coming decades.
Date: February 21, 2005
Creator: Dixon, Cathy
Object Type: Report
System: The UNT Digital Library
Affordable Resins and Adhesives From Optimized Soybean Varieties (ARA Program) (open access)

Affordable Resins and Adhesives From Optimized Soybean Varieties (ARA Program)

The Mission of the ARA Program was to develop the Corporate Infrastructure to mass-produce new bio-based materials from Soybeans. The resins were integrated with the bio-fuels program. (1) to research, develop, and commercialize low cost adhesives and resins from soy oil and protein, the co-products of the soy bio-diesel process. (2) to study structure-functionality of soy oil and proteins at molecular and genomic levels
Date: April 21, 2004
Creator: WOol, Dr. Richard; Sun, Dr. X. Susan & Chapas, Rich
Object Type: Report
System: The UNT Digital Library

After Treatment (Emissions) Issues for Locomotives in the Future

None
Date: January 21, 2001
Creator: Patten, Jim
Object Type: Presentation
System: The UNT Digital Library
Ags Super Neutrino Beam Facility Accelerator and Target System Design (Neutrino Working Group Report-Ii). (open access)

Ags Super Neutrino Beam Facility Accelerator and Target System Design (Neutrino Working Group Report-Ii).

This document describes the design of the accelerator and target systems for the AGS Super Neutrino Beam Facility. Under the direction of the Associate Laboratory Director Tom Kirk, BNL has established a Neutrino Working Group to explore the scientific case and facility requirements for a very long baseline neutrino experiment. Results of a study of the physics merit and detector performance was published in BNL-69395 in October 2002, where it was shown that a wide-band neutrino beam generated by a 1 MW proton beam from the AGS, coupled with a half megaton water Cerenkov detector located deep underground in the former Homestake mine in South Dakota would be able to measure the complete set of neutrino oscillation parameters: (1) precise determination of the oscillation parameters {Delta}m{sub 32}{sup 2} and sin{sup 2} 2{theta}{sub 32}; (2) detection of the oscillation of {nu}{sub {mu}}-{nu}{sub e} and measurement of sin{sup 2} 2{theta}{sub 13}; (3) measurement of {Delta}m{sub 21}{sup 2} sin 2{theta}{sub 12} in a {nu}{sub {mu}} {yields} {nu}{sub e} appearance mode, independent of the value of {theta}{sub 13}; (4) verification of matter enhancement and the sign of {Delta}m{sub 32}{sup 2}; and (5) determination of the CP-violation parameter {delta}{sub CP} in the neutrino sector. This …
Date: April 21, 2003
Creator: Diwan, M.; Marciano, W.; Weng, W. & Raparia, D.
Object Type: Report
System: The UNT Digital Library
Air-Core Strong Focusing Synchrotron (open access)

Air-Core Strong Focusing Synchrotron

This report addresses air-core strong focusing synchrotron.
Date: April 21, 1959
Creator: Christofilos, N. C.
Object Type: Report
System: The UNT Digital Library
AISI/DOE Technology Roadmap Program: Characterization of Fatigue and Crash Performance of New Generation High Strength Steels for Automotive Applications (open access)

AISI/DOE Technology Roadmap Program: Characterization of Fatigue and Crash Performance of New Generation High Strength Steels for Automotive Applications

A 2-year project (2001-2002) to generate fatigue and high strain data for a new generation of high strength steels (HSS) has been completed in December 2002. The project tested eleven steel grades, including Dual Phase (DP) steels, Transformation-Induced Plasticity (TRIP) steels, Bake Hardenable (BH) steels, and conventional High Strength Low Alloy (HSLA) steels. All of these steels are of great interest in automotive industry due to the potential benefit in weight reduction, improved fuel economy, enhanced crash energy management and total system cost savings. Fatigue behavior includes strain controlled fatigue data notch sensitivity for high strength steels. High strain rate behavior includes stress-strain data for strain rates from 0.001/s to 1000/s, which are considered the important strain rate ranges for crash event. The steels were tested in two phases, seven were tested in Phase 1 and the remaining steels were tested in Phase. In a addition to the fatigue data and high st rain rate data generated for the steels studied in the project, analyses of the testing results revealed that Advanced High Strength Steels (AHSS) exhibit significantly higher fatigue strength and crash energy absorption capability than conventional HSS. TRIP steels exhibit exceptionally better fatigue strength than steels of similar …
Date: April 21, 2003
Creator: Yan, Brenda & Urban, Dennis
Object Type: Report
System: The UNT Digital Library
AISI/DOE Technology Roadmap Program Hot Oxygen Injection Into The Blast Furnace (open access)

AISI/DOE Technology Roadmap Program Hot Oxygen Injection Into The Blast Furnace

Increased levels of blast furnace coal injection are needed to further lower coke requirements and provide more flexibility in furnace productivity. The direct injection of high temperature oxygen with coal in the blast furnace blowpipe and tuyere offers better coal dispersion at high local oxygen concentrations, optimizing the use of oxygen in the blast furnace. Based on pilot scale tests, coal injection can be increased by 75 pounds per ton of hot metal (lb/thm), yielding net savings of $0.84/tm. Potential productivity increases of 15 percent would yield another $1.95/thm. In this project, commercial-scale hot oxygen injection from a ''thermal nozzle'' system, patented by Praxair, Inc., has been developed, integrated into, and demonstrated on two tuyeres of the U.S. Steel Gary Works no. 6 blast furnace. The goals were to evaluate heat load on furnace components from hot oxygen injection, demonstrate a safe and reliable lance and flow control design, and qualitatively observe hot oxygen-coal interaction. All three goals have been successfully met. Heat load on the blowpipe is essentially unchanged with hot oxygen. Total heat load on the tuyere increases about 10% and heat load on the tuyere tip increases about 50%. Bosh temperatures remained within the usual operating range. …
Date: October 21, 2002
Creator: Riley, Michael F.
Object Type: Report
System: The UNT Digital Library
ALCF I/O Data Repository (open access)

ALCF I/O Data Repository

This report talks about the ALCF I/O Data Repository.
Date: May 21, 2013
Creator: Carns, P. H.
Object Type: Report
System: The UNT Digital Library
De-alerting of U.S. nuclear forces: a critical appraisal (open access)

De-alerting of U.S. nuclear forces: a critical appraisal

Since the end of the Cold War, there have been pressures by disarmament advocates to move more quickly to draw down, toward zero, the number of nuclear weapons in U.S. and Russian arsenals. They criticize the process of negotiating arms control agreements as being too slow, and point out that treaty implementation is hampered by the necessity of ratification by the U.S. Senate and Russian Duma. One method of moving more rapidly toward nuclear abolition suggested by some analysts is de-alerting of nuclear-weapon delivery systems. De-alerting is defined as taking steps that increase significantly the time required to launch a given delivery vehicle armed with a nuclear warhead. Although there is little inclination by the U.S. Government to de-alert its nuclear forces at present, some academic literature and press stories continue to advocate such steps. This paper offers a critique of de-alerting proposals together with an assessment of the dangers of accidental, unauthorized, or unintended use of nuclear weapons. It concludes that de-alerting nuclear forces would be extremely de-stabilizing, principally because it would increase the value to an opponent of launching a first strike.
Date: August 21, 1998
Creator: Bailey, K. C. & Barish, F.
Object Type: Report
System: The UNT Digital Library
AN ALGOL 60 SYNTAX CHECKER FOR THE IBM 7090 COMPUTER (open access)

AN ALGOL 60 SYNTAX CHECKER FOR THE IBM 7090 COMPUTER

A syntax checker was designed based on the syntax of Algol as previously described. It was desirable to design the syntax checker as a set of mutually recursive processors tied together by building blocks which perform certain bookkeeping functions. Because of the recursive nature of the language and of the syntax checker, the problem of recovery after an error required much attention. A method was devised which permits most programs to be checked completely despite errors. The syntax checker was implemented for the IBM 7090 as a part of the SHARE ALGOL processor, and has operated very satisfactorily. (auth)
Date: March 21, 1963
Creator: Lietzke, M.P.
Object Type: Report
System: The UNT Digital Library
The All-wavelength Extended Groth Strip International Survey (AEGIS) Data Sets (open access)

The All-wavelength Extended Groth Strip International Survey (AEGIS) Data Sets

In this the first of a series of ''Letters'', we present a description of the panchromatic data sets that have been acquired in the Extended Groth Strip region of the sky. Our survey, the All-wavelength Extended Groth Strip International Survey (AEGIS), is intended to study the physical properties and evolutionary processes of galaxies at z {approx} 1. It includes the following deep, wide-field imaging data sets: Chandra/ACIS{sup 30} X-ray (0.5-10 keV), GALEX{sup 31} ultraviolet (1200-2500 A), CFHT/MegaCam Legacy Survey{sup 32} optical (3600-9000 {angstrom}), CFHT/CFH12K optical (4500-9000 {angstrom}), Hubble Space Telescope/ACS{sup 33} optical (4400-8500 {angstrom}), Palomar/WIRC{sup 34} near-infrared (1.2-2.2 {micro}m), Spitzer/IRAC{sup 35} mid-infrared (3.6-8.0 {micro}m), Spitzer/MIPS far-infrared (24-70 {micro}m), and VLA{sup 36} radio continuum (6-20 cm). In addition, this region of the sky has been targeted for extensive spectroscopy using the DEIMOS spectrograph on the Keck II 10 m telescope{sup 37}. Our survey is compared to other large multiwavelength surveys in terms of depth and sky coverage.
Date: July 21, 2006
Creator: Davis, M.; Guhathakurta, P.; Konidaris, N.; Newman, J.A.; Ashby, M.L.N.; Biggs, A.D. et al.
Object Type: Report
System: The UNT Digital Library
Allocating resources and building confidence in public-safety decisions for nuclear waste sites (open access)

Allocating resources and building confidence in public-safety decisions for nuclear waste sites

There are three basic ways to protect the public from the hazards of exposure to radionuclides in nuclear waste: completely contain the waste; limit the rate at which radionuclides are released; and, once radionuclides are released, minimize their impact by reducing concentrations and retarding transport. A geologic repository system that implements all three provides maximum protection for the public: if one element fails, the others serve to protect. This is ''defense-in-depth.'' Demonstrating confidence in the ability of a designed system to provide the requisite safety to the public must rely on a combination of the following aspects relating to engineered and natural system components: 1 Knowledge or understanding of properties and processes 2 Uniformity of (or ability to understand or control) the range of variability associated with each component 3 Experience over time This paper proposes a tool based on defining a ''confidence region'' determined by these three essential aspects of confidence. The defense-in-depth decision-making tool described identifies the portion of the ultimate confidence region that is not well demonstrated and indicates where there is potential for changing a specific component's confidence region, therefore providing in-formation for decisions on emphasis--either for demonstrating performance or for focusing on further studies. The …
Date: May 21, 1999
Creator: Lew, K L & Wilder, D G
Object Type: Article
System: The UNT Digital Library
Alteration of U(6)-Phases Under Oxidizing Conditions (open access)

Alteration of U(6)-Phases Under Oxidizing Conditions

Uranium-(VI) phases are the primary alteration products of the UO{sub 2} in spent nuclear fuel and the UO{sub 2+x}, in natural uranium deposits. The U(VI)-phases generally form sheet structures of edge-sharing UO{sub 2}{sup 2+} polyhedra. The complexity of these structures offers numerous possibilities for coupled-substitutions of trace metals and radionuclides. The incorporation of radionuclides into U(VI)-structures provides a potential barrier to their release and transport in a geologic repository that experiences oxidizing conditions. In this study, we have used natural samples of UO{sub 2+x}, to study the U(VI)-phases that form during alteration and to determine the fate of the associated trace elements.
Date: February 21, 2006
Creator: Deditius, A. P.; Utsunomiya, S. & Ewing, R. C.
Object Type: Report
System: The UNT Digital Library
Aluminum and polymeric coatings for protection of uranium (open access)

Aluminum and polymeric coatings for protection of uranium

Ion-plated aluminum films on uranium will not provide adequate protection for 25 years. Magnetron-plated aluminum films on uranium are much better than ion-plated ones. Kel-F 800 films on uranium can provide adequate protection for 25 years. Their use in production must be delayed until the following factors are sorted out: water permeability in Kel-F 800 must be determined between 30 and 60/sup 0/C; the effect of UF/sub 3/, at the Kel-F/metal interface, on the permeability of water must be assessed; and the effect of crystallinity on water permeability must be evaluated. Applying Kel-F films on aluminum ion-plated uranium provides a good interim solution for long term storage.
Date: December 21, 1983
Creator: Colmenares, C.; McCreary, T.; Monaco, S.; Walkup, C.; Gleeson, G.; Kervin, J. et al.
Object Type: Report
System: The UNT Digital Library
Aluminum-fly ash metal matrix composites for automotive parts. [Reports for October 1 to December 31, 1999, and January 1 - to March 31, 2000] (open access)

Aluminum-fly ash metal matrix composites for automotive parts. [Reports for October 1 to December 31, 1999, and January 1 - to March 31, 2000]

The highlights of this report are: (1) fly ash classified by less than 100 microns in size was mixed into a 300 lb melt of alloy 535 without the need of a magnesium additive; (2) a vibratory feeder fitted with a sieve was used as the means to minimize particle clustering while introducing fly ash into the aluminum alloy 535 melt; and (3) the industrial-size field test was successful in that sand mold castings and permanent mold castings of tensile bars, K mold bars, and ingots were made from aluminum alloy 535-fly ash mix. Use of aluminum alloy 535 containing 7% magnesium precluded the need to introduce additional magnesium into the melt. The third round of sand mold castings as well as permanent mold castings produced components and ingots of alloy 535 instead of alloy 356. The ingots will be remelted and cast into parts to assess the improvement of flyash distribution which occurs through reheating and the solidification wetting process. Microstructure analysis continues on sand and permanent mold castings to study particle distribution in the components. A prototype sand cast intake manifold casting was found to be pressure tight which is a major performance requirement for this part. Another …
Date: April 21, 2000
Creator: Weiss, David; Purgert, Robert; Rhudy, Richard & Rohatgi, Pradeep
Object Type: Report
System: The UNT Digital Library
Aluminum-fly ash metal matrix composites for automotive parts. [Reports for October 1 to December 1998, and January 31 to March 31, 1999] (open access)

Aluminum-fly ash metal matrix composites for automotive parts. [Reports for October 1 to December 1998, and January 31 to March 31, 1999]

Some highlights are: (1) Material development, process development, and part validation are occurring simultaneously on a fast track schedule. (2) Prior project activity has resulted in a program emphasis on three components--manifolds, mounting brackets, and motor mounts; and three casting techniques--squeeze casting, pressure die casting, and sand casting. (3) With the project focus, it appears possible to offer manifolds and mounting brackets for automotive qualification testing on a schedule in line with the PNGV Year 2004 goal. (4) Through an iterative process of fly ash treatment, MMC ingot preparation, foundry process refinement, and parts production, both foundries (Eck Industries and Thompson Aluminum Casting Company) are addressing the pre-competitive issues of: (a) Optimum castability with fly ash shapes and sizes; (b) Best mechanical properties derived from fly ash shapes and sizes; (c) Effective fly ash classification processes; (d) Mechanical properties resulting from various casting processes and fly ash formulations. Eck and TAC continued experiments with batch ingot provided by both Eck and the University of Wisconsin at Milwaukee. Castings were run that contained varying amounts of fly ash and different size fractions. Components were cast using cenosphere material to ascertain the effects of squeeze casting and to determine whether the pressure …
Date: April 21, 1999
Creator: Weiss, David; Purgert, Robert; Rhudy, Richard & Rohatgi, P.
Object Type: Report
System: The UNT Digital Library
Ambient environmental radiation monitoring at the Lawrence Livermore Laboratory (open access)

Ambient environmental radiation monitoring at the Lawrence Livermore Laboratory

Thermoluminescence dosimetry is the principal means of measuring ambient $gamma$ radiation at the Lawrence Livermore Laboratory. These dosimeters are used at 12 perimeter locations and 41 locations in the off-site vicinity of the Laboratory, and are exchanged quarterly. Control dosimeters are stored in a 75- mm-thick lead shield located out-of-doors to duplicate temperature cycling of field dosimeters. Effect of dosimeter response to radiation in the shield is determined each quarter. Calibration irradiations are made midway through the exposure cycle to compensate for signal fading. Terrestrial exposure rates calculated from the activities of naturally occurring uranium, thorium, and potassium in Livermore Valley soils vary from 3 to 7 $mu$R/hr. Local inferred exposure rates from cosmic radiation are approximately 4 $mu$R/hr. TLD measurements are in good agreement with these data. Off-site and site perimeter data are compared, and differences related to Laboratory operations are discussed. (auth)
Date: November 21, 1975
Creator: Lindeken, C.L.; White, J.H.; Toy, A.J. & Sundbeck, C.W.
Object Type: Article
System: The UNT Digital Library
Ambulatory Research and Education Center Oregon Health Science University. Environmental Assesment (open access)

Ambulatory Research and Education Center Oregon Health Science University. Environmental Assesment

DOE has prepared an Environmental Assessment (EA) (DOE/EA-0921) evaluating the proposed construction and operation of the Ambulatory Research and Education Center (AREC), which would be located on the top seven floors of the existing NeuroSensory Research Center (NRC) on the campus of the Oregon Health Sciences University (OHSU) at Portland, Oregon. The proposed action would combine activities scattered across the campus into a central facility. Based on the analysis in the EA, DOE has determined that the proposed action does not constitute a major Federal action significantly affecting the quality of the human environment within the meaning of the National Environmental Policy Act (NEPA) of 1969, 42 USC 4321 et seq. Therefore, an environmental impact statement (EIS) is not required and the Department is issuing this Finding of No Significant Impact (FONSI).
Date: March 21, 1994
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Ames test results on shot-tank residues (open access)

Ames test results on shot-tank residues

In August 1987, a routine Ames test on soot from the Lawrence Livermore National Laboratory (LLNL) 4-in. gun showed that the soot was mutagenic to Salmonella bacteria. Subsequent liquid chromatography on the soot showed that, out of hundreds of ultravoilet-absorbing compounds found in the residue, only three or four were mutagenic. When a sample large enough to weigh was collected, it was found that No environmentally identified complex mixture has ever been reported with as much Ames/Salmonella activity per gram as the gun residues.'' Since then, Ames tests of hundreds of samples have verified that the residues from our gun tanks may be hazardous to health. The actual degree of the hazard and the identity of the offending chemicals are still unknown. 2 refs.
Date: September 21, 1990
Creator: Bloom, G.H.
Object Type: Article
System: The UNT Digital Library
Amineborane Based Chemical Hydrogen Storage - Final Report (open access)

Amineborane Based Chemical Hydrogen Storage - Final Report

The development of efficient and safe methods for hydrogen storage is a major hurdle that must be overcome to enable the use of hydrogen as an alternative energy carrier. The objectives of this project in the DOE Center of Excellence in Chemical Hydride Storage were both to develop new methods for on-demand, low temperature hydrogen release from chemical hydrides and to design high-conversion off-board methods for chemical hydride regeneration. Because of their reactive protic (N-H) and hydridic (B-H) hydrogens and high hydrogen contents, amineboranes such as ammonia borane, NH3BH3 (AB), 19.6-wt% H2, and ammonia triborane NH3B3H7 (AT), 17.7-wt% H2, were initially identified by the Center as promising, high-capacity chemical hydrogen storage materials with the potential to store and deliver molecular hydrogen through dehydrogenation and hydrolysis reactions. In collaboration with other Center partners, the Penn project focused both on new methods to induce amineborane H2-release and on new strategies for the regeneration the amineborane spent-fuel materials. The Penn approach to improving amineborane H2-release focused on the use of ionic liquids, base additives and metal catalysts to activate AB dehydrogenation and these studies successfully demonstrated that in ionic liquids the AB induction period that had been observed in the solid-state was eliminated …
Date: April 21, 2011
Creator: Sneddon, Larry G.
Object Type: Report
System: The UNT Digital Library
AMRNodeElliptic software package node-centered AMR for elliptic problems (open access)

AMRNodeElliptic software package node-centered AMR for elliptic problems

None
Date: April 21, 2003
Creator: McCorquodale, Peter
Object Type: Report
System: The UNT Digital Library
Analysis and design of high power density self-cooled lithium and vanadium blanket. (open access)

Analysis and design of high power density self-cooled lithium and vanadium blanket.

None
Date: April 21, 2000
Creator: Gohar, Y.; Majumdar, S. & Smith, D.
Object Type: Report
System: The UNT Digital Library
Analysis and design of short, iron-free dipole magnets (open access)

Analysis and design of short, iron-free dipole magnets

Iron-free, dipole magnets are used extensively as steering magnets to correct for the bending, induced by extraneous magnetic fields, of particle beams that are being transported in vacuum. Generally, the dipoles are long enough that the space occupied by the end conductors is small compared to the overall magnet length. In a recent application, however, this criteria did not apply. This has motivated a reanalysis of the characteristics of a system of small aspect ratio (length/diameter) dipoles that are spaced at relatively large axial distances.
Date: October 21, 1981
Creator: Harvey, A.R.
Object Type: Article
System: The UNT Digital Library