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Some general properties of stimulated Raman propagation with pump depletion, transiency and dispersion

Description: This note considers some of the properties of the Stokes pulse that grows from a specified seed pulse in the presence of a strong pump pulse as it propagates through a dispersive atomic vapor. We first present an generic dimensionless form for the coupled equations that govern the propagation of pump and Stokes fields or collinear plane-wave pulses. By treating the two fields we permit pump depletion. We include transient atomic response (as embodied in the Raman coherence), but neglect changes… more
Date: August 2, 1991
Creator: Shore, B. W.; Lowder, S. & Johnson, M. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of an experimental database and theories for prediction of thermodynamic properties of aqueous electrolytes and nonelectrolytes of geochemical significance at supercritical temperatures and pressures

Description: Volumetric measurements have been completed for CH{sub 4}, CO{sub 2}, and H{sub 2}S at temperatures from 25{degrees}C to 380{degrees}C and 2 or 3 pressures at each temperature. The H{sub 2}S and CO{sub 2} solutions are stored in aluminized mylar bags in PVC pipes with water surrounding the bags at a pressure of several atmospheres. The methane is stored in a one liter autoclave with a sliding teflon piston engaging the sides of the autoclave which separates the standard methane solution from th… more
Date: May 2, 1991
Creator: Wood, R.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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International petroleum statistics report, September 1991

Description: The International Petroleum Statistics Report is a monthly publication that provides current international oil data. This report is published for the use of members of Congress, federal agencies, state agencies, industry, and the general public. Publication of this report is in keeping with responsibilities given the Energy Information Administration in Public Law 95-91 (Section 205(a)(2)). The International Petroleum Statistics Report presents data on international oil production, consumption,… more
Date: October 2, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

WACC-WTG Review Comment Sheets

Description: This report is a letter about a review of the Quality Assurance Project Plan for the INEL Waste Isolation Pilot Plant Waste Characterization Project.'' The author of the letter recommended the approval of the quality assurance program. However in his review, several observations were made and were requested to be added to the program. Examples of these observations were safety of personnel involved in the program, safe characterization of hazardous materials studied, quality of calibrations req… more
Date: April 2, 1991
Creator: Spencer, W. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Synthesis of a naphthalene-hydroxynaphthalene polymer model compound

Description: The objective of this project was the synthesis of one pound of a new naphthalene-hydroxynaphthalene polymer model compound for use in coal combustion studies. Since this compound was an unreported compound, this effort also required the development of a synthetic route to this compound (including routes to the unique and unreported intermediates leading to its synthesis).
Date: October 2, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Optical analogs of model atoms in fields

Description: The equivalence of the paraxial wave equation to a time-dependent Schroedinger equation is exploited to construct optical analogs of model atoms in monochromatic fields. The approximation of geometrical optics provides the analog of the corresponding classical mechanics. Optical analogs of Rabi oscillations, photoionization, stabilization, and the Kramers-Henneberger transformation are discussed. One possibility for experimental realization of such optical analogs is proposed. These analogs may… more
Date: May 2, 1991
Creator: Milonni, P.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Topics in particle physics and cosmology

Description: The Standard Model of particle physics, together with the Big Bang model of the early universe, constitute a framework which encompasses our current understanding of fundamental laws and beginning of our universe. Despite recent speculative trends, quantum field theory remains the theoretical tool of choice for investigating new physics either at high energy colliders, or in the early universe. In this dissertation, several field theoretic phenomena relevant to cosmology or particle physics are… more
Date: August 2, 1991
Creator: Hsu, S.D.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

District cooling: Phase 2, Direct freeze ice slurry system testing

Description: The objectives of this research are to: extend the range of pressure drop data for ice-water slurry flows, and design and build a prototypical ice slurry distribution system which demonstrates ice slurry handling at an end user's heat exchanger, without sending ice slurry directly through the heat exchanger. The results of Phase 1 work demonstrated a 40% reduction in pump power required to move an ice-water slurry versus the same mass flow of water only. In addition to lower pressure drop, pump… more
Date: January 2, 1991
Creator: Winters, P.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: FW rally]

Description: Video footage from the KXAS-TV television station in Fort Worth, Texas, covering a news story.
Date: March 2, 1991, 6:00 p.m.
Duration: 47 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Dixon sentencing]

Description: Video footage from the KXAS-TV television station in Fort Worth, Texas, covering a news story.
Date: April 2, 1991, 5:00 p.m.
Duration: 1 minute 30 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: More Tarpley]

Description: Video footage from the KXAS-TV television station in Fort Worth, Texas, covering a news story.
Date: April 2, 1991, 10:00 p.m.
Duration: 1 minute 42 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Dixon sentencing]

Description: Video footage from the KXAS-TV television station in Fort Worth, Texas, covering a news story.
Date: April 2, 1991, 6:00 p.m.
Duration: 1 minute 41 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Enhancing atom densities in solid hydrogen by isotopic substitution

Description: Atomic hydrogen inside solid H{sub 2} increases the energy density by 200 MegaJoules/m{sup 3}, for each percent mole fraction stored. How many atoms can be stored in solid hydrogen To answer this, we need to know: (1) how to produce and trap hydrogen atoms in solid hydrogen, (2) how to keep the atoms from recombining into the ground molecular state, and (3) how to measure the atom density in solid hydrogen. Each of these topics will be addressed in this paper. Hydrogen atoms can be trapped in s… more
Date: April 2, 1991
Creator: Collins, G. W.; Souers, P. C.; Mapoles, E. R. & Magnotta, F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

An analysis of the tritium content in fish from Upper Three Runs Creek

Description: In November of 1988 the F/H-area effluent treatment facility (ETF) began releasing treated waste water to Upper Three Runs Creek. Previous to that time, there has been minimal discharge of plant waste water to this tributary of the Savannah River. The ETF is designed to remove the toxic and radioactive waste materials from the effluent stream and to meet the discharge limits of the South Carolina Department of Health and Environmental Control (SCDHEC). The only radioactive nuclide not removed b… more
Date: May 2, 1991
Creator: Murphy, C. E. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Liquid Phase Methanol LaPorte Process Development Unit: Modification, Operation, and Support Studies

Description: The primary focus of this Process Development Unit operating program was to prepare for a confident move to the next scale of operation with a simplified and optimized process. The main purpose of these runs was the evaluation of the alternate commercial catalyst (F21/0E75-43) that had been identified in the laboratory under a different subtask of the program. If the catalyst proved superior to the previous catalyst, then the evaluation run would be continued into a 120-day life run. Also, mino… more
Date: February 2, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Liquid Phase Methanol LaPorte Process Development Unit: Modification, Operation, and Support Studies

Description: This report consists of Detailed Data Acquisition Sheets for Runs E-6 and E-7 for Task 2.2 of the Modification, Operation, and Support Studies of the Liquid Phase Methanol Laporte Process Development Unit. (Task 2.2: Alternate Catalyst Run E-6 and Catalyst Activity Maintenance Run E-7).
Date: February 2, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reaction and diffusion in turbulent combustion

Description: The primary objective of the research is to use Direct Numerical Simulations (DNS) to study turbulent non-premixed combustion. In DNS, the fluid mechanical and thermochemical conservation equations are solved by an accurate numerical method, without any averaging or turbulence modeling. In principle, then, DNS could be used to study a turbulent diffusion flame, for example. In practice, however, computational limitations severely restrict the flows that can be simulated. For non-reacting flows,… more
Date: October 2, 1991
Creator: Pope, S. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A quiet operating I. C. engine with complete highly efficient expansion cycle

Description: A program for the development of a quiet operating internal combustion engine with complete highly efficient expansion cycle was administered by the Department of Energy on June 14, 1988 through December 13, 1989. An extension, modification M001 to the contract allowed up to June 12, 1991 to complete this work. The extension was granted in order for Engine Research Associates, Inc. (ERA) to continue the development of the engine on its own funds to a level of performance required for an indepen… more
Date: December 2, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Optical and thermal energy discharge from tritiated solid hydrogen

Description: The authors are investigating mechanisms of energy storage and release in tritiated solid hydrogens, by a variety of techniques including ESR, NMR and thermal and optical emission. The nuclear decay of a triton in solid hydrogen initiates the conversion of nuclear energy into stored chemical energy by producing unpaired hydrogen atoms which are trapped within the molecular lattice. The ability to store large quantities of atoms in this manner has been demonstrated and can serve as a basis for n… more
Date: April 2, 1991
Creator: Magnotta, F.; Mapoles, E. R.; Collins, G. W. & Souers, P. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

National Biomedical Tracer Facility planning and feasibility study

Description: Since its establishment in mid-1989, the DOE Office of Isotope Production and Distribution has examined the recommendations of the Los Alamos Report and the Health and Environmental Research Advisory Committee (HERAC) Report. The main recommendation from these deliberations is for the DOE to establish an accelerator dedicated to biomedical radioisotope production. Representatives of the nuclear medicine community, meeting at a DOE workshop in August 1988, evaluated present and future needs for … more
Date: March 2, 1991
Creator: Ketchem, L. (ed.) & Holmes, R.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reaction and diffusion in turbulent combustion. Progress report

Description: The primary objective of the research is to use Direct Numerical Simulations (DNS) to study turbulent non-premixed combustion. In DNS, the fluid mechanical and thermochemical conservation equations are solved by an accurate numerical method, without any averaging or turbulence modeling. In principle, then, DNS could be used to study a turbulent diffusion flame, for example. In practice, however, computational limitations severely restrict the flows that can be simulated. For non-reacting flows,… more
Date: October 2, 1991
Creator: Pope, S. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A quiet operating I.C. engine with complete highly efficient expansion cycle. Final technical report

Description: A program for the development of a quiet operating internal combustion engine with complete highly efficient expansion cycle was administered by the Department of Energy on June 14, 1988 through December 13, 1989. An extension, modification M001 to the contract allowed up to June 12, 1991 to complete this work. The extension was granted in order for Engine Research Associates, Inc. (ERA) to continue the development of the engine on its own funds to a level of performance required for an indepen… more
Date: December 2, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Nitrogen oxide abatement by distributed fuel addition. Quarterly report No. 13, August 1, 1990--October 31, 1990

Description: Reburning experiments are presented in which the effect of the primary flame mode is examined. The application of reburning downstream of an axial diffusion primary flame without swirl is compared to reburning results in which the primary flame is premixed. The comparison is qualitative and is intended to examine reburning under more realistic conditions of utility boilers, where premixed flames are not common. Experimental results of reburning tests using nitrogen containing reburning fuels (a… more
Date: January 2, 1991
Creator: Wendt, J. O. L. & Mereb, J. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Synthesis of actinide nitrides, phosphides, sulfides and oxides

Description: This invention is comprised of a process of preparing an actinide compound of the formula An{sub x}Z{sub y} wherein An is an actinide metal atom selected from the group consisting of thorium, uranium, plutonium, neptunium, and americium, x is selected from the group consisting of one, two or three, Z is a main group element atom selected from the group consisting of nitrogen, phosphorus, oxygen and sulfur and y is selected from the group consisting of one, two, three or four, by admixing an act… more
Date: April 2, 1991
Creator: Van Der Sluys, W. G.; Burns, C. J. & Smith, D. C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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