UNT Libraries Government Documents Department - 23 Matching Results

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open access

AIDS: An Overview of Issues

Description: This report discusses the many difficult policy dilemmas associated with the AIDS epidemic, including past Congressional funding to support AIDS research and education efforts, strategies for controlling the spread of the AIDS virus, and methods and resources available for the care and treatment of persons with AIDS.
Date: December 24, 1987
Creator: Smith, Pamela W.
Item Type: Refine your search to only Report
open access

CC Cryostat Cooldown Test Warmup

Description: This report discusses the warming up of the stainless steel inner vessel of the CC Cryostat back to room temperature after it has been cooled down by liquid nitrogen. It considers the sufficiency of a standard magnet warm-up 12KW heater in delivering enough heat to warm the Crypstat in a couple of days. The concept of sufficiency will be answered by the following questions, and by an experimental test that was made of the heater in question.
Date: September 24, 1987
Creator: Peterson, T. & Fitzpatrick, J. B.
Item Type: Refine your search to only Report
open access

Full length prototype SSC dipole test results

Description: Results are presented from tests of the first full length prototype SSC dipole magnet. The cryogenic behavior of the magnet during a slow cooldown to 4.5K and a slow warmup to room temperature has been measured. Magnetic field quality was measured at currents up to 2000 A. Averaged over the body field all harmonics with the exception of b/sub 2/ and b/sub 8/ are at or within the tolerances specified by the SSC Central Design Group. (The values of b/sub 2/ and b/sub 8/ result from known design a… more
Date: April 24, 1987
Creator: Strait, J.; Brown, B.C.; Carson, J.; Engler, N.; Fisk, H.E.; Hanft, R. et al.
Item Type: Refine your search to only Article
open access

Hadron masses in lattice gauge theories: The inclusions of dynamical fermions

Description: Hadron masses are calculated on an 8/sup 3/ /times/ 16 lattice using four flavors of staggered fermion to generate the gauge configurations, but using Wilson fermions to calculate the hadron propagators. The identification of a value of the Wilson hopping parameter with the value of the bare quark mass used in the simulations is discussed.
Date: November 24, 1987
Creator: Richards, D.G.
Item Type: Refine your search to only Article
open access

Hydrodynamics of a vertical hydraulic fracture

Description: We have developed a numerical algorithm, HUBBERT, to simulate the hydrodynamics of a propagating vertical, rectangular fracture in an elastic porous medium. Based on the IFD method, this algorithm assumes fracture geometry to be prescribed. The breakdown and the creation of the incipient fracture is carried out according to the Hubbert-Willis theory. The propagation of the fracture is based on the criterion provided by Griffith, based on energy considerations. The deformation properties of the … more
Date: March 24, 1987
Creator: Narasimhan, T.N.
Item Type: Refine your search to only Report
open access

Potential impacts of artificial intelligence expert systems on geothermal well drilling costs:

Description: The Geothermal research Program of the US Department of Energy (DOE) has as one of its goals to reduce the cost of drilling geothermal wells by 25 percent. To attain this goal, DOE continuously evaluates new technologies to determine their potential in contributing to the Program. One such technology is artifical intelligence (AI), a branch of computer science that, in recent years, has begun to impact the marketplace in a number of fields. Expert systems techniques can (and in some cases, alre… more
Date: November 24, 1987
Creator: Satrape, J.V.
Item Type: Refine your search to only Report
open access

Relation between shock strength and strain-rate plasticity at maximum deviatoric stress

Description: Using Wallace's analysis for steady weak shocks, this paper establishes for Cu, Ur, and 6061T6Al an approximate relations between the shock strength and the maximum deviatoric stress, tau/sub m/, and plastic strain at tau/sub m/. In addition it is shown that the plastic strain rate is very nearly proportional to the total normal strain rate at tau/sub m/. These results and the universal shock strength/strain rate relation of Swegle and Grady are used to draw conclusions about the general plasti… more
Date: June 24, 1987
Creator: Tonks, D.L.
Item Type: Refine your search to only Article
open access

Relativistic nuclear fluid dynamics and VUU kinetic theory

Description: Relativistic kinetic theory may be used to understand hot dense hadronic matter. We address the questions of collective flow and pion production in a 3 D relativistic fluid dynamic model and in the VUU microscopic theory. The GSI/LBL collective flow and pion data point to a stiff equation of state. The effect of the nuclear equation of state on the thermodynamic parameters is discussed. The properties of dense hot hadronic matter are studied in Au + Au collisions from 0.1 to 10 GeV/nucleon. 22 … more
Date: August 24, 1987
Creator: Molitoris, J.J.; Hahn, D.; Alonso, C.; Collazo, I.; D'Alessandris, P.; McAbee, T. et al.
Item Type: Refine your search to only Article
open access

Resonances in near-threshold x-ray photoabsorption of inner shells

Description: Synchrotron radiation measurements of near-threshold and broad-range (20 eV - 3 keV) absolute photoabsorption cross sections were made at the Brookhaven National Laboratory (NSLS) and at Stanford (SSRL). Transmission data for well-characterized multilayer foils provided absolute cross sections with 10% overall uncertainties and better than 0.2% energy resolution. Several examples of our results are presented.
Date: August 24, 1987
Creator: Del Grande, N. K.; Tirsell, K. G.; Schneider, M. B.; Garrett, R. F.; Kneedler, E. M. & Manson, S. T.
Item Type: Refine your search to only Article
open access

Safety Analysis Report for Packaging (SARP): Model AL-M1 nuclear packaging (DOE C of C No. USA/9507/BLF)

Description: This Safety Analysis Report for Packaging (SARP) satisfies the request of the US Department of Energy for a formal safety analysis of the shipping container identified as USA/9507/BLF, also called AL-M1, configuration 5. This report makes available to all potential users the technical information and the limits pertinent to the construction and use of the shipping containers. It includes discussions of structural integrity, thermal resistance, radiation shielding and radiological safety, nuclea… more
Date: November 24, 1987
Creator: Coleman, Harold L.; Whitney, Michael A.; Williams, Monte A.; Alexander, Barbara M. & Shapiro, Alvin
Item Type: Refine your search to only Report
open access

Safety Analysis Report for Packaging (SARP): Models AL-M3 and AL-M6 nuclear packaging (DOE C of C No. USA/5790/BLF and No. USA/5791/BLF)

Description: This revised Safety Analysis Report for Packaging (SARP) satisfies the requirement of the US Department of Energy (DOE) for an updated formal safety analysis of the two insulated drum shipping containers identified as USA/5790/BLF and USA/5791/BLF. The report makes available to all potential users the technical information and limits pertinent to the construction and use of the shipping containers. This SARP includes discussions of structural integrity, thermal resistance, radiation shielding a… more
Date: November 24, 1987
Creator: Coleman, Harold L.; Whitney, Michael A.; Williams, Monte A.; Alexander, Barbara M. & Shapiro, Alvin
Item Type: Refine your search to only Report
open access

Status report on SWSA 6 geophysical studies

Description: As part of the Solid Waste Storage Area (SWSA) 6 remedial investigation activities, surface seismic refraction surveys will be conducted to characterize the thickness of the soil/saprolite horizon (Boegly et al. 1985). The primary advantage of the seismic method is the ability to detect sudden changes in bedrock topography in regions with insufficient borehole data. The lateral resolution capability offered by the seismic refraction method is highly desirable to properly characterize the thickn… more
Date: June 24, 1987
Creator: Dreier, R. B.; Selfridge, R. J. & Beaudoin, C. M.
Item Type: Refine your search to only Report
open access

Status report on SWSA 6 geophysical studies

Description: As part of the Solid Waste Storage Area (SWSA) 6 remedial investigation activities, surface seismic refraction surveys will be conducted to characterize the thickness of the soil/saprolite horizon (Boegly et al. 1985). The primary advantage of the seismic method is the ability to detect sudden changes in bedrock topography in regions with insufficient borehole data. The lateral resolution capability offered by the seismic refraction method is highly desirable to properly characterize the thickn… more
Date: June 24, 1987
Creator: Dreier, R. B.; Selfridge, R. J. & Beaudoin, C. M.
Item Type: Refine your search to only Report
open access

Surface studies of UFe2 and evaluation of its catalytic properties with a 2H2:CO mixture

Description: The reactivity of UFe2 with O2, CO and CO2 were studied using x-ray photoelectron spectroscopy (XPS). Adsorption of O2 on clean UFe2 surfaces (Fe/U approx. = 2.0), produced by argon-ion sputtering, leads to the formation of UO2 and depletion of Fe from the surface layer probed by XPS (Fe/U approx. = 0.8). The oxidation state of Fe in this layer, as determined by XPS (Fe 2p/sub 3/2/ = 710.4 eV), is between Fe S and Fe T of pure Fe oxides. Exposure of sputtered-clean UFe2 to CO and CO2 results in… more
Date: March 24, 1987
Creator: Schultz, J.; Naegele, J.; Spirlet, J.C. & Colmenares, C.
Item Type: Refine your search to only Article
open access

Tests of prototype SSC magnets

Description: Results are presented from tests of the first two full length prototype SSC dipole magnets. Magnetic field measurements have been made at currents up to 2000 A. The two magnets achieved peak currents at 4.5K of 5790 A and 6450 A, respectively, substantially below the short sample limit of 6700 A. These peak values, however, could not be achieved reproducibly. Data are presented from studies performed to try to understand the poor quench performance.
Date: April 24, 1987
Creator: Strait, J.
Item Type: Refine your search to only Article
open access

Transmission-corrected x-ray fluorescence analysis of uranium and plutonium solutions using a dual transmission source

Description: The energy-dispersive x-ray fluorescence analysis (XRFA) technique has been implemented at several spent nuclear fuel reprocessing facilities for nondestructive measurements of uranium and/or plutonium concentrations in process streams and product storage tanks. An important factor in these quantitative measurements is the absorption of the fluoresced x-rays by the solution matrix, which must be taken into account to accurately quantify the U or Pu concentrations. We describe a new, accurate me… more
Date: November 24, 1987
Creator: Ruhter, W. D. & Camp, D. C.
Item Type: Refine your search to only Article
open access

Tritium permeation through characterized films on Type 304L stainless steel

Description: Rocky Flats is looking for an optimum method for surface treating 304L stainless steel to increase its resistance to tritium permeation. Selected surface treatments were applied to 304L samples. One set of samples was shipped to the Rockwell Corporate Science Center for alternate characterization analysis. Another set was sent to Los Alamos National Laboratory for tritium exposure and ion beam spectrographic analysis. The Science Center performed the following analyses: ellipsometry, contact po… more
Date: July 24, 1987
Creator: Kallas, A.J.; Rising, T.L.; Childs, E.L. & Thomas, R.L. (ed.)
Item Type: Refine your search to only Report
open access

Use of a transfected and amplified Drosophila heat shock promoter construction for inducible production of toxic mouse c-myc proteins in CHO cells

Description: After transfection and selection with methotrexate, CHO cell lines were established which contained up to 2000 copies of an expression vector for c-myc protein. The vector contained the Drosophila heat shock protein 70 (hsp70) promoter fused with the coding region of the mouse c-myc gene. Incubation of cells for up to 3 hours at 43/sup 0/C resulted in at least a 100-fold induction of recombinant c-myc mRNA. When cells were shifted back to 37/sup 0/C, within 1 to 4 hours, this RNA was translated… more
Date: July 24, 1987
Creator: Wurm, F.M.; Gwinn, K.A.; Papoulas, O.; Pallavicini, M. & Kingston, R.E.
Item Type: Refine your search to only Article
open access

Wave equations for pulse propagation

Description: Theoretical discussions of the propagation of pulses of laser radiation through atomic or molecular vapor rely on a number of traditional approximations for idealizing the radiation and the molecules, and for quantifying their mutual interaction by various equations of propagation (for the radiation) and excitation (for the molecules). In treating short-pulse phenomena it is essential to consider coherent excitation phenomena of the sort that is manifest in Rabi oscillations of atomic or molecu… more
Date: June 24, 1987
Creator: Shore, B. W.
Item Type: Refine your search to only Report
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