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open access

Agricultural Marketing Assistance Loans and Loan Deficiency Payments

Description: Marketing assistance loans for the major crops were designed to facilitate orderly marketing by providing short-term financing so that farmers could pay their bills right after harvest and spread their sales over the entire marketing year. However, the persistence of very low commodity prices transformed the loan program into a major vehicle of farm income support. Marketing loan program benefits (primarily loan deficiency payments, LDPs) to farmers amounted to about $5.9 billion in 1999, and w… more
Date: December 13, 2000
Creator: Womach, Jasper
Partner: UNT Libraries Government Documents Department
open access

Antiguided Ribbon Laser Concept

Description: We propose a new, robustly scalable technique for phase locking multiple gain cores in a fiber structure based on antiguiding or radiative coupling, rather than the more commonly pursued method of evanescent wave phase locking. Our focus is on a ribbon-like geometry in which a waveguide region contains multiple gain cores arranged in a periodic array. The distinguishing feature of such antiguiding structures is that refractive index of the gain cores is lower than or equal to that of the surrou… more
Date: December 13, 2000
Creator: Beach, R; Feit, M; Page, R; Brasure, L; Wilcox, R & Payne, S
Partner: UNT Libraries Government Documents Department
open access

Exploring old and new benzene formation pathways in low-pressure premixed flames of aliphatic fuels

Description: A modeling study of benzene and phenyl radical formation is performed for three low-pressure premixed laminar flat flames having an unsaturated C{sub 2} or C{sub 3} hydrocarbon fuel (acetylene, ethylene, and propene). Predictions using three published detailed elementary-step chemical kinetics mechanisms are tested against MBMS species profile data for all three flames. The differences between the three mechanisms predictive capabilities are explored, with an emphasis on benzene formation pathw… more
Date: December 13, 2000
Creator: Pope, Christopher J. & Miller, James A.
Partner: UNT Libraries Government Documents Department
open access

Financial Management: Navy's Implementation of the Defense Property Accountability System

Description: Correspondence issued by the General Accounting Office with an abstract that begins "As part of its involvement with the Navy Personal Property Working Group, GAO reviewed the Department of the Navy's implementation of the Defense Property Accountability System (DPAS). As requested by the working group, GAO visited six Navy activities to evaluate DPAS implementation at those selected locations. GAO found that (1) physical wall-to-wall inventories of personal property were not being done properl… more
Date: December 13, 2000
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

GEOCHEMISTRY OF ROCK UNITS AT THE POTENTIAL REPOSITORY LEVEL, YUCCA MOUNTAIN, NEVADA

Description: The compositional variability of the phenocryst-poor member of the 12.8-million-year Topopah Spring Tuff at the potential repository level was assessed by duplicate analysis of 20 core samples from the cross drift at Yucca Mountain, Nevada. Previous analyses of outcrop and core samples of the Topopah Spring Tuff showed that the phenocryst-poor rhyolite, which includes both lithophysal and nonlithophysal zones, is relatively uniform in composition. Analyses of rock samples from the cross drift, … more
Date: December 13, 2000
Creator: Peterman, Z.E. & Cloke, P.L.
Partner: UNT Libraries Government Documents Department
transcript

["Al Gore's Vice Presidential Concession Speech"]

Description: Audio cassette from The Black Academy of Arts and Letters recorded during former Vice President Al Gore's concession speech that took place on December 13th, 2000 to George W. Bush. The tape includes one track of well recorded audio of the speech which covers the topics of uniting as as country to step into the new millennium and thanking his supporters.
Date: December 13, 2000
Duration: 44 minutes 11 seconds
Creator: Gore, Al
Partner: UNT Libraries Special Collections
open access

Hexahedral Mesh Untangling

Description: We investigate a well-motivated mesh untangling objective function whose optimization automatically produces non-inverted elements when possible. Examples show the procedure is highly effective on simplicial meshes and on non-simplicial (e.g., hexahedral) meshes constructed via mapping or sweeping algorithms. The current whisker-weaving (WW) algorithm in CUBIT usually produces hexahedral meshes that are unsuitable for analyses due to inverted elements. The majority of these meshes cannot be unt… more
Date: December 13, 2000
Creator: Knupp, Patrick
Partner: UNT Libraries Government Documents Department
open access

Multigrid algorithms for solving the linear Boltzmann equation using first-order system least-squares finite element methods

Description: Solving the linear Boltzmann equation in neutron scattering phenomena presents many challenges to standard numerical schemes in computational physics. For an SN discretization, the so-called ray effects pollute the numerical solution. This pollution can be viewed mathematically as ''contamination'' from a poorly chosen approximating basis set for the angle component of the discretization-i.e., collocation in angle is equivalent to discretization with delta basis functions, which form a poor app… more
Date: December 13, 2000
Creator: Chang, B. & Lee, B.
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Ospry crash]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: December 13, 2000, 4:00 p.m.
Duration: 57 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

Observations Concerning the Injection of a Lithium Aerosol into the Edge of TFTR Discharges

Description: A new method of actively modifying the plasma-wall interaction was tested on the Tokamak Fusion Test Reactor. A laser was used to introduce a directed lithium aerosol into the discharge scrape-off layer. The lithium introduced in this fashion ablated and migrated preferentially to the limiter contact points. This allowed the plasma-wall interaction to be influenced in situ and in real time by external means. Significant improvement in energy confinement and fusion neutron production rate as wel… more
Date: December 13, 2000
Creator: Mansfield, D.K.; Johnson, D.W.; Grek, B.; Kugel, H.; Bell, M.G. & al, et
Partner: UNT Libraries Government Documents Department
open access

PCMDI analysis of candidate atmospheric models for CCSM

Description: This report is intended to give a summary analysis of the candidate model configurations under consideration by NCAR for the atmospheric component of next version of the Community Climate System Model (CCSM). Intercomparison results are presented for each of the models available prior to the Atmospheric Model Working Group (AMWG) meeting, December 12-14, 2000. We present four types of figures in this report. The traditional methods of viewing zonal mean surface fields, latitude-longitude maps a… more
Date: December 13, 2000
Creator: Wehner, M. F.; Taylor, K.; Doutriaux, C.; AchutaRao, K.; Gleckler, P.; Hnilo, J. et al.
Partner: UNT Libraries Government Documents Department
open access

Progress report on DOE research project [Thermodynamic and kinetic behavior of systems with intermetallic and intermediate phases]

Description: A theoretical investigation was made of the coherent displacive phase transformation between two equilibrium single-phase states producing several orientation variants of the product phase. The research was focused on a behavior of coherent systems (martensitic systems, metal and ceramic, and ferroelectric systems) with defects. The computer simulation demonstrated that randomly distributed static defects may drastically affect the thermodynamics, kinetics, and morphology of the transformation.… more
Date: December 13, 2000
Creator: Tsakalakos, T.; Semenovskaya-Khachaturyan, S. & Khachaturyan, A.G.
Partner: UNT Libraries Government Documents Department
open access

Quantifying Silica Reactivity in Subsurface Environments: Reaction Affinity and Solute Matrix Controls on Quartz and SiO2 Glass Dissolution Kinetics

Description: During the three years of this project, Professor Dove's laboratory made tremendous progress in understanding controls on amorphous silica dissolution kinetics in aqueous solutions. Our findings have already received considerable attention. In hydrothermal and low temperature studies, the work focused on determining quantitative and mechanistic controls on the most abundant silica polymorphs in Earth environments--quartz and amorphous silica. Our studies achieved goals set forth in the original… more
Date: December 13, 2000
Creator: Dove, Patricia M.
Partner: UNT Libraries Government Documents Department
open access

Quantitative Temperature Imaging in Gas-Phase Turbulent Thermal Convection by Laser-Induced Fluorescence of Acetone

Description: In this paper, an acetone planar laser-induced fluorescence (PLIF) technique for nonintrusive, temperature imaging is demonstrated in gas-phase (Pr = 0.72) turbulent Rayleigh-Benard convection at Rayleigh number, Ra = 1.3 x 10{sup 5}. The PLIF technique provides quantitative, spatially correlated temperature data without the flow intrusion or time lag associated with physical probes and without the significant path averaging that plagues most optical heat-transfer diagnostic tools, such as the … more
Date: December 13, 2000
Creator: KEARNEY,SEAN P. & REYES,FELIPE V.
Partner: UNT Libraries Government Documents Department
open access

Risk Assessment Methodology for Protecting Our Critical Physical Infrastructures

Description: Critical infrastructures are central to our national defense and our economic well-being, but many are taken for granted. Presidential Decision Directive (PDD) 63 highlights the importance of eight of our critical infrastructures and outlines a plan for action. Greatly enhanced physical security systems will be required to protect these national assets from new and emerging threats. Sandia National Laboratories has been the lead laboratory for the Department of Energy (DOE) in developing and de… more
Date: December 13, 2000
Creator: BIRINGER,BETTY E. & DANNEELS,JEFFREY J.
Partner: UNT Libraries Government Documents Department
transcript

[Segments from Al Gore's presidential concession speech]

Description: Audio cassette from The Black Academy of Arts and Letters recorded during former Vice President Al Gore's concession speech that took place on December 13th, 2000 to George W. Bush. The tape includes two track of well recorded audio of segments of the speech which covers the topics of uniting as as country to step into the new millennium and thanking his supporters.
Date: December 13, 2000
Duration: 4 minutes 16 seconds
Creator: Gore, Al
Partner: UNT Libraries Special Collections
open access

State Department: Serious Problems in the Anthrax Vaccine Immunization Program

Description: A letter report issued by the General Accounting Office with an abstract that begins "In 1998, the State Department stockpiled anthrax vaccine and antibiotics at several diplomatic posts near Iraq. In the event of an anthrax attack by Iraq, this stockpile was to be used for post-exposure immunization and treatment. In 1999, the State announced that it was starting a voluntary Anthrax Immunization Program for U.S. government employees, their dependents, and other personnel overseas. According to… more
Date: December 13, 2000
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

Statistical Properties of Antenna Impedance in an Electrically Large Cavity

Description: This paper presents models and measurements of antenna input impedance in resonant cavities at high frequencies.The behavior of input impedance is useful in determining the transmission and reception characteristics of an antenna (as well as the transmission characteristics of certain apertures). Results are presented for both the case where the cavity is undermoded (modes with separate and discrete spectra) as well as the over moded case (modes with overlapping spectra). A modal series is cons… more
Date: December 13, 2000
Creator: WARNE,LARRY K.; LEE,KELVIN S.H.; HUDSON,H. GERALD; JOHNSON,WILLIAM A.; JORGENSON,ROY E. & STRONACH,STEPHEN L.
Partner: UNT Libraries Government Documents Department
open access

A theoretical analysis of the reaction between ethyl and molecular oxygen

Description: Using a combination of electronic-structure theory, variational transition-state theory, and solutions to the time-dependent master equation, the authors have studied the kinetics of the title reaction theoretically over wide ranges of temperature and pressure. The agreement between theory and experiment is quite good. By comparing the theoretical and experimental results describing the kinetic behavior, they have been able to deduce a value for the C{sub 2}H{sub 5}-O{sub 2} bond energy of {app… more
Date: December 13, 2000
Creator: Miller, James A.; Klippenstein, Stephen J. & Robertson, Stuart H.
Partner: UNT Libraries Government Documents Department
open access

Wind resource mapping of the state of Vermont

Description: This paper summarizes the results of a wind mapping project and a validation study for the state of Vermont. The computerized wind resource mapping technique used for this project was developed at the National Renewable Energy Laboratory (NREL). The technique uses Geographic Information System (GIS) software and produces high resolution (1km{sup 2}) wind resource maps.
Date: December 13, 2000
Creator: Elliott, D.; Schwartz, M. & Nierenberg, R.
Partner: UNT Libraries Government Documents Department
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