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Study of electron-positron interactions

Description: For the past seven years, this group has been interested in the study of tests of the Standard Model of Electroweak interactions. The program has centered about the AMY experiment which examines the nature of the final state products in electron-positron collisions in the center of mass energy range near 60 GeV. Results of these measurements have shown a remarkable consistency with the predictions of the minimal model of 3 quark and lepton generations and single charged and neutral intermediate… more
Date: September 15, 1990
Creator: Abashian, A.; Gotow, K. & Philonen, L.
Partner: UNT Libraries Government Documents Department
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The Migration and Entrapment of DNAPLs in Physically and Chemically Heterogeneous Porous Media - Final Report - 09/15/1996 - 09/15/2000

Description: Hazardous dense nonaqueous phase liquids (DNAPLs), such as chlorinated solvents, are slightly water soluble and pose a serious threat to soil and groundwater supplies in many portions of the United States. The migration and entrapment of DNAPLs in the subsurface environment is typically believed to be controlled by physical heterogeneities; i.e, layers and lenses of contrasting soil texture. The rationale for this assumption is that capillarity, as determined by the soil texture, is the dominan… more
Date: September 15, 2000
Creator: Abriola, L. M. & Demond, A. H.
Partner: UNT Libraries Government Documents Department
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Effects of crack geometry and material behavior on scattering by cracks for QNDE applications

Description: In work carried out on this project, the usual mathematical modeling of ultrasonic wave scattering by flaws is being extended to account for several typical characteristics of fatigue and stress-corrosion cracks, and the environment of such cracks. Work has been completed on scattering by macrocrack-microcrack configurations. We have also investigated reflection and transmission by a flaw plane consisting of an infinite array of randomly oriented cracks. In another investigation the propagation… more
Date: September 15, 1989
Creator: Achenbach, J. D.
Partner: UNT Libraries Government Documents Department
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Effects of crack geometry and material behavior on scattering by cracks for QNDE applications. Technical progress report, March 1, 1988--August 30, 1989

Description: In work carried out on this project, the usual mathematical modeling of ultrasonic wave scattering by flaws is being extended to account for several typical characteristics of fatigue and stress-corrosion cracks, and the environment of such cracks. Work has been completed on scattering by macrocrack-microcrack configurations. We have also investigated reflection and transmission by a flaw plane consisting of an infinite array of randomly oriented cracks. In another investigation the propagation… more
Date: September 15, 1989
Creator: Achenbach, J. D.
Partner: UNT Libraries Government Documents Department
open access

Quantitative non-destructive evaluation of high-temperature superconducting materials

Description: Even though the currently intensive research efforts on high-temperature superconducting materials have not yet converged on a well specified material, the strong indications are that such a material will be brittle, anisotropic, and may contain many flaws such as microcracks and voids at grain boundaries. Consequently, practical applications of high temperature superconducting materials will require a very careful strength analysis based on fracture mechanics considerations. Because of the hig… more
Date: September 15, 1990
Creator: Achenbach, J. D.
Partner: UNT Libraries Government Documents Department
open access

Quantitative non-destructive evaluation of high-temperature superconducting materials. Technical progress report, September 1, 1989--August 30, 1990

Description: Even though the currently intensive research efforts on high-temperature superconducting materials have not yet converged on a well specified material, the strong indications are that such a material will be brittle, anisotropic, and may contain many flaws such as microcracks and voids at grain boundaries. Consequently, practical applications of high temperature superconducting materials will require a very careful strength analysis based on fracture mechanics considerations. Because of the hig… more
Date: September 15, 1990
Creator: Achenbach, J. D.
Partner: UNT Libraries Government Documents Department
open access

Lifecycle Assessment of Beijing-Area Building Energy Use and Emissions: Summary Findings and Policy Applications

Description: Buildings are at the locus of three trends driving China's increased energy use and emissions: urbanization, growing personal consumption, and surging heavy industrial production. Migration to cities and urban growth create demand for new building construction. Higher levels of per-capita income and consumption drive building operational energy use with demand for higher intensity lighting, thermal comfort, and plug-load power. Demand for new buildings, infrastructure, and electricity requires … more
Date: September 15, 2010
Creator: Aden, Nathaniel; Qin, Yining & Fridley, David
Partner: UNT Libraries Government Documents Department
open access

Collaboration tools for the global accelerator network: Workshop Report

Description: The concept of a ''Global Accelerator Network'' (GAN) has been put forward as a means for inter-regional collaboration in the operation of internationally constructed and operated frontier accelerator facilities. A workshop was held to allow representatives of the accelerator community and of the collaboratory development community to meet and discuss collaboration tools for the GAN environment. This workshop, called the Collaboration Tools for the Global Accelerator Network (GAN) Workshop, was… more
Date: September 15, 2002
Creator: Agarwal, Deborah; Olson, Gary & Olson, Judy
Partner: UNT Libraries Government Documents Department
open access

Operability test report for core sample truck {number_sign}1 flammable gas modifications

Description: This report primarily consists of the original test procedure used for the Operability Testing of the flammable gas modifications to Core Sample Truck No. One. Included are exceptions, resolutions, comments, and test results. This report consists of the original, completed, test procedure used for the Operability Testing of the flammable gas modifications to the Push Mode Core Sample Truck No. 1. Prior to the Acceptance/Operability test the truck No. 1 operations procedure (TO-080-503) was revi… more
Date: September 15, 1997
Creator: Akers, J.C.
Partner: UNT Libraries Government Documents Department
open access

Ex-Im Bank: No Quorum, No Problem?

Description: This report discusses the operation on a limited basis of the Export-Import Bank (Ex-Im Bank) despite a renewal of its general statutory charter through FY2019 (P.L. 114-94,
Date: September 15, 2016
Creator: Akhtar, Shayerah Ilias
Partner: UNT Libraries Government Documents Department
open access

Boundary Layer Cloudiness Parameterizations Using ARM Observations

Description: This study used DOE ARM data and facilities to: (1) study macroscopic properties of continental stratus clouds at SGP and the factors controlling these properties, (2) develop a scientific basis for understanding the processes responsible for the formation of boundary layer clouds using ARM observations in conjunction with simple parametric models and LES, and (3) evaluate cumulus cloud characteristics retrieved from the MMCR operating at TWP-Nauru. In addition we have used high resolution 94 G… more
Date: September 15, 2004
Creator: Albrecht, Bruce
Partner: UNT Libraries Government Documents Department
open access

A preliminary study of extraction solvents for CW-agents and their decomposition products [3:1 (methylene chloride:isopropanol) vs. methylene chloride]

Description: The major focus of this study was to explore the possibility of using different extraction solvents (or solvent combinations) to isolate CW agents and their degradation products from environmental and industrial samples. The general approach for extracting, e.g. water samples, required the use of a 3:1 (methylene chloride:isopropanol) extraction solvent. Although the 3:1 solvent extraction work-up methods provided excellent results in several Inter-laboratory Comparison Tests, the implementatio… more
Date: September 15, 1994
Creator: Alcaraz, A.; Ward, R. L.; Hulsey, S. S. & Andresen, B. D.
Partner: UNT Libraries Government Documents Department
open access

Analysis of Events Associated with First Charge of Desicooler Material

Description: HB-Line's mission included dissolution of uranium-aluminum scrap left over from a U3O8 scrap recovery program begun in 1972 with material returned from Rocky Flats and Oak Ridge. This material has been stored in desicooler containers, and is commonly referred to as the Desicoolers. The Scrap Recovery process includes the dissolution of scrap material and transfer of the resulting solution to H-Canyon for further disposition. During the first charge of this material into the HB-Line dissolvers, … more
Date: September 15, 2003
Creator: Alexander, D. E.
Partner: UNT Libraries Government Documents Department
open access

Control Rod Studies for Enigma Configurations.

Description: No Description Available.
Date: September 15, 2006
Creator: Aliberti, G.; Taiwo, T. A.; Palmiotti, G.; Tommasi, J. & Jacqmin,R.
Partner: UNT Libraries Government Documents Department
open access

Perrhenate and Pertechnetate Behavior on Iron and Sulfur-Bearing Compounds.

Description: Investigations on the behavior of the radioactive element technetium frequently use a stable isotope of rhenium as an analogue. This is justified by citing the elements similar radii and major oxidation states of +7 and +4. However, at least one study [1] has shown this analogy to be imperfect. Therefore, one goal of our study is to compare the adsorption behavior of perrhenate and pertechnetate (the major forms of Re and Tc in natural waters) on a number of different mineral surfaces. Quantum … more
Date: September 15, 2006
Creator: Anderson, B. E.; Becker, U.; Helean, K. B. & Ewing, R. C.
Partner: UNT Libraries Government Documents Department
open access

Investigation of an NACA Submerged Inlet at Mach Numbers from 1.17 to 1.99

Description: Memorandum presenting an investigation conducted with an NACA submerged inlet at Mach numbers from 1.17 to 1.99. Total-pressure ratio, mass-flow ratio, and static pressure distribution along the ramp and main body were obtained at angles of attack of 0 and 6 degrees for a side inlet location. The results showed that the maximum total-pressure ratio attainable with the submerged inlet decreased from 0.83 at a Mach number of 1.17 to 0.52 at a Mach number of 1.99.
Date: September 15, 1952
Creator: Anderson, Warren E. & Frazer, Alson C.
Partner: UNT Libraries Government Documents Department
open access

Hydraulic supply and demand characteristics of thorium target elements in B, C, D, and K process tubes

Description: In conjunction with the proposed thorium target element replacement program, hydraulic tests were performed in the Hydraulics Laboratory in 185-D building to determine the flow characteristics of 1.480-inch OD solid thorium loadings in B, C, D, and K fringe tubes. Included are supply curve data for those orifice combinations which are tentatively to be used with the thorium loads in the various fringe tubes. In addition, predicted supply-demand characteristics are presented for a loading of 1.6… more
Date: September 15, 1964
Creator: Angle, C. W.
Partner: UNT Libraries Government Documents Department
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Tethered Lubricants

Description: We have performed extensive experimental and theoretical studies of interfacial friction, relaxation dynamics, and thermodynamics of polymer chains tethered to points, planes, and particles. A key result from our tribology studies using lateral force microscopy (LFM) measurements of polydisperse brushes of linear and branched chains densely grafted to planar substrates is that there are exceedingly low friction coefficients for these systems. Specific project achievements include: (1) Synthesis… more
Date: September 15, 2010
Creator: Archer, Lynden
Partner: UNT Libraries Government Documents Department
open access

European Security, Islamist Terrorism, and Returning Fighters

Description: This report discusses European concerns about Islamist terrorism, which have been heightened considerably by several attacks over the last year and the growing number of European citizens training and fighting with extremist groups in foreign conflicts (especially in Syria and Iraq).
Date: September 15, 2015
Creator: Archick, Kristin & Belkin, Paul
Partner: UNT Libraries Government Documents Department
open access

Argonne National Laboratory Reactor Engineering Division Quarterly Report June 1, 1953 through August 31, 1953

Description: Report issued by the Argonne National Laboratory covering the quarterly report from the Reactor Engineering Division. A summary of reactor programs (including the Power Breeder Reactor (PBR) and the Central Station Water Reactor (CSWR)), designs, development, and experiments are presented. This report includes tables, illustrations, and photographs.
Date: September 15, 1953
Creator: Argonne National Laboratory. Reactor Enginneering Division.
Partner: UNT Libraries Government Documents Department
open access

Effect of shock wave risetime on material ejection from aluminum surfaces

Description: The effect of shock wave risetime on material ejection in aluminum has been studied for loading stresses of 21 GPa. Uniform loading was accomplished with plate impact techniques by mounting specimens on a ramp wave generator. Projectile impact on one side of the wave generator produced a wave which dispersed with propagation distance. This wave was then made incident to an aluminum specimen, so that the specimen experienced non-shock loading. It was found that mass ejection from aluminum surfac… more
Date: September 15, 1977
Creator: Asay, J.R.
Partner: UNT Libraries Government Documents Department
open access

Mandatory Spending Since 1962

Description: Mandatory spending includes federal government spending on entitlement programs as well as other budget outlays controlled by laws other than appropriation acts. Entitlement programs such as Social Security and Medicare make up the bulk of mandatory spending. This report looks at mandatory spending and how it has grown over time relative to total federal spending and the size of the U.S. economy. It also analyzes future mandatory spending levels and how they are projected to impact the federal … more
Date: September 15, 2010
Creator: Austin, D. Andrew & Levit, Mindy R.
Partner: UNT Libraries Government Documents Department
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