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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.
Partner: UNT Libraries Government Documents Department
open access

ERIP application instructions

Description: This report provides background information and instructions to assist applicants in writing Energy-Related Inventions Program (ERIP) applications. Initial feedback fro usage for the new instructions shows that the best instructions would not be read and followed by all applicants. Applications from more than thirty applicants who have received the new instructions indicated that few had read the instructions. Based on this feedback, the instructions have been further revised to include a title… more
Date: January 2, 1992
Creator: Watt, D.M.
Partner: UNT Libraries Government Documents Department
open access

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.
Partner: UNT Libraries Government Documents Department
open access

Development and utilization of new diagnostics for dense-phase pneumatic transport

Description: In 1988, we proposed a program to develop new diagnostics for dense gas-solid suspensions, with particular interest toward the dense pneumatic transport of cohesive solid plugs. This program included three main objectives, as follows: to develop probes for local measurements of (1) local particle volume fraction and (2) individual particle velocities in dense gas-solid flows; and (3) to construct a bench-scale setup for transporting dense cohesive solid plugs and to analyze data from the result… more
Date: March 2, 1992
Creator: Louge, M. & Jenkins, J.T.
Partner: UNT Libraries Government Documents Department
open access

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
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.
Partner: UNT Libraries Government Documents Department
open access

Budget Surpluses: Experiences of Other Nations and Implications for the United States

Description: A chapter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the experience of six nations--Australia, Canada, New Zealand, Norway, Sweden, and the United Kingdom--with budget surpluses, focusing on: (1) how they achieved budget surpluses and what their fiscal policies were during periods of surplus; (2) how they addressed long-term budgetary pressures; (3) how they adapted their budget process during a p… more
Date: November 2, 1999
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

Regulatory Flexibility Act: Agencies' Interpretations of Review Requirements Vary

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO updated its previous reports on agencies' use of the Unified Agenda of Federal Regulatory and Deregulatory Actions to publish final rule notices, focusing on: (1) how many agencies had no Agenda entries that were characterized as Regulatory Flexibility Act (RFA) of 1980, section 610 reviews, whether agencies are interpreting the review requirements consistently, and why… more
Date: April 2, 1999
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

Western National Forests: A Cohesive Strategy is Needed to Address Catastrophic Wildfire Threats

Description: A chapter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on: (1) the extent and seriousness of forest-health-related problems in national forests in the interior West; (2) the status of efforts by the Forest Service to address the most serious of these problems; and (3) barriers to successfully addressing these problems and options for overcoming them."
Date: April 2, 1999
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

Food Stamp Program: Various Factors Have Led to Declining Participation

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed states' efforts to reduce participation in the Food Stamp Program, focusing on: (1) the reasons for the recent drop in food stamp participation; and (2) any problems that households with eligible children have experienced in obtaining food stamps."
Date: July 2, 1999
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

Unpaid Payroll Taxes: Billions in Delinquent Taxes and Penalty Assessments Are Owed

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on payroll taxes owed to the federal government and the associated trust fund recovery penalties assessed individuals responsible for the nonpayment of these taxes, focusing on the: (1) extent to which payroll taxes are not remitted to the federal government; (2) magnitude of the trust fund recovery penalties assessed against individuals of organiza… more
Date: August 2, 1999
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

Dietary Supplements: Uncertainties in Analyses Underlying FDA's Proposed Rule on Ephedrine Alkaloids

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the analyses underlying the Food and Drug Administration's (FDA) proposed rule on the food supplements, ephedrine alkaloids, focusing on: (1) the scientific basis for FDA's proposed rule; and (2) FDA's adherence to the regulatory analysis requirements for federal rulemaking."
Date: July 2, 1999
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

Tax Administration: IRS' Abatement Process in Selected Locations

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO described the Internal Revenue Service's (IRS) abatement process, focusing on IRS': (1) process for making abatements from initiation through final review in selected IRS locations; and (2) efforts to improve the abatement process."
Date: July 2, 1999
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

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
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.
Partner: UNT Libraries Government Documents Department
open access

Development of a numerical computer code and circuit element models for simulation of firing systems

Description: Numerical simulation of firing systems requires both the appropriate circuit analysis framework and the special element models required by the application. We have modified the SPICE circuit analysis code (version 2G.6), developed originally at the Electronic Research Laboratory of the University of California, Berkeley, to allow it to be used on MSDOS-based, personal computers and to give it two additional circuit elements needed by firing systems--fuses and saturating inductances. An interact… more
Date: July 2, 1990
Creator: Carpenter, K.H. (Kansas State Univ., Manhattan, KS (USA). Dept. of Electrical and Computer Engineering)
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.
Partner: UNT Libraries Government Documents Department
open access

Application of MeV ions to the analysis and modification of high temperature superconducting materials

Description: In analyzing the composition of high {Tc} superconducting materials using heavy-ion RBS we discovered that the electronic excitation of the target caused mixing to occur. To study this effect we made superlattice structures of alternating thin layers of Ba{sub 2}YCu{sub 3}O{sub 6+x} and BaF{sub 2}. At this point in the process some mixing has occurred, but the individual layers are still visible. However, as the bombardment continued the layers were mixed together. It may well be that one can u… more
Date: November 2, 1990
Creator: Tombrello, T.A.
Partner: UNT Libraries Government Documents Department
open access

ONT High Gain Initiative WRAP (Wide Area Rapid Acoustic Prediction) computational performance section

Description: LLNL received a contract during March 1990 to perform three tasks for ONT. This letter report covers Task I which concerned a supercomputing effort in a program termed the High Gain Initiative, which is an anti-submarine (ASW) project that requires substantial computational and signal processing expertise. The core of the computational aspects at the present time is a code called WRAP (Wide Area Rapid Acoustic Prediction). LLNL's objective was to study the WRAP model and determine the feasibili… more
Date: October 2, 1990
Creator: McGraw, J. R.; Hedstrom, G. & De Groot, T.
Partner: UNT Libraries Government Documents Department
open access

Minutes: SRL Criticality and Accountability Review Committee. [Savannah River Laboratory (SRL)]

Description: Various aspects safety procedures concerning the handling of fissile materials at Savannah river plant are presented in these (12-16-91) meeting minutes. Criticality control procedures, inconsistencies in mass limit forms, and nuclear incident monitors, etc. are briefly discussed. (GHH)
Date: January 2, 1992
Creator: Gerrard, P.B.; Ha, B.C.; Jolly, L.; Key, F.; Rudisill, T.S.; Trumble, E.F. et al.
Partner: UNT Libraries Government Documents Department
open access

A microstructural study of creep and thermal fatigue deformation in 60Sn-40Pb solder joints

Description: Thermal fatigue failures of solder joints in electronic devices often arise from cyclic shear strains imposed by the mismatched thermal expansion coefficients of the materials that bind the joint as temperature changes are encountered. Increased solder joint reliability demands a fundamental understanding of the metallurigical mechanisms that control the fatigue to design accurate accelerated probative tests and new, more fatigue resistant solder alloys. The high temperatures and slow strain ra… more
Date: June 2, 1990
Creator: Tribula, D.
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.
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
Partner: UNT Libraries Government Documents Department
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