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Office of Scientific & Technical Information Technical Reports
242
Congressional Research Service Reports
125
Government Accountability Office Reports
52
Texas Patents
35
Texas Attorney General Opinions
27
Technical Report Archive and Image Library
22
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16
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14
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Wavelength Variation of the Second-Order Nonlinear Coefficients of KNbO3, KTiOPO4, KTiOAsO4, LiNbO3, LiIO3, B-BaB2O4, KH2PO4, and LiB3O5 Crystals: A Test of Miller Wavelength Scaling
None
Date:
July 17, 2000
Creator:
ALFORD,WILLIAM J. & SMITH,ARLEE V.
Object Type:
Article
System:
The UNT Digital Library
303-K Storage Facility report on FY98 closure activities
This report summarizes and evaluates the decontamination activities, sampling activities, and sample analysis performed in support of the closure of the 303-K Storage Facility. The evaluation is based on the validated data included in the data validation package (98-EAP-346) for the 303-K Storage Facility. The results of this evaluation will be used for assessing contamination for the purpose of closing the 303-K Storage Facility as described in the 303-K Storage Facility Closure Plan, DOE/RL-90-04. The closure strategy for the 303-K Storage Facility is to decontaminate the interior of the north half of the 303-K Building to remove known or suspected dangerous waste contamination, to sample the interior concrete and exterior soils for the constituents of concern, and then to perform data analysis, with an evaluation to determine if the closure activities and data meet the closure criteria. The closure criteria for the 303-K Storage Facility is that the concentrations of constituents of concern are not present above the cleanup levels. Based on the evaluation of the decontamination activities, sampling activities, and sample data, determination has been made that the soils at the 303-K Storage Facility meet the cleanup performance standards (WMH 1997) and can be clean closed. The evaluation determined …
Date:
July 17, 1998
Creator:
Adler, J. G.
Object Type:
Report
System:
The UNT Digital Library
U.S.-European Union Trade Relations: Issues and Policy Challenges
None
Date:
July 17, 2003
Creator:
Ahearn, Raymond J.
Object Type:
Report
System:
The UNT Digital Library
Tank farm backlog soil sample analysis plan
This document describes the measures to collect samples, perform testing on samples, and make decisions to obtain a Contained- in Determination for tank farms backlog soil.
Date:
July 17, 1996
Creator:
Ahlers, J. D.
Object Type:
Report
System:
The UNT Digital Library
Standard nomenclature for airspeeds with tables and charts for use in calculation of airspeed
Symbols and definition of various airspeed terms that have been adopted as standard by the NACA subcommittee on aircraft structural design are presented. The equations, charts, and tables required in the evaluation of true airspeed, calibrated airspeed, equivalent airspeed, impact and dynamic pressures, and Mach and Reynolds numbers have been compiled. Tables of the standard atmosphere to an altitude of 65,000 feet and a tentative extension to an altitude of 100,000 feet are given along with the basic equations and constants on which both the standard atmosphere and the tentative extension are based.
Date:
July 17, 1946
Creator:
Aiken, William S., Jr.
Object Type:
Report
System:
The UNT Digital Library
Underscoring Attachment for Type-Writers.
Patent for an improvement on an underscoring attachment for type writers that allows the user to use the functions of underscoring, correcting, and cancelling characters as they type, allowing some functions to occur simultaneously, including instructions and illustrations.
Date:
July 17, 1917
Creator:
Aiton, Fred
Object Type:
Patent
System:
The Portal to Texas History
Aluminum-Oxide Temperatures on the Mark VB, VE, VR, 15, and Mark 25 Assemblies
The task was to compute the maximum aluminum-oxide and oxide-coolant temperatures of assemblies cladded in 99 plus percent aluminum. The assemblies considered were the Mark VB, VE, V5, 15 and 25. These assemblies consist of nested slug columns with individual uranium slugs cladded in aluminum cans. The CREDIT code was modified to calculate the oxide film thickness and the aluminum-oxide temperature at each axial increment. The information in this report will be used to evaluate the potential for cladding corrosion of the Mark 25 assembly.
Date:
July 17, 2001
Creator:
Aleman, S. E.
Object Type:
Report
System:
The UNT Digital Library
Aluminum-Oxide Temperatures on the Mark VB, VE, VR, 15, and Mark 25 Assemblies
The task was to compute the maximum aluminum-oxide and oxide-coolant temperatures of assemblies cladded in 99+ percent aluminum. The assemblies considered were the Mark VB, VE, V5, 15 and 25. These assemblies consist of nested slug columns with individual uranium slugs cladded in aluminum cans. The CREDIT code was modified to calculate the oxide film thickness and the aluminum-oxide temperature at each axial increment. This information in this report will be used to evaluate the potential for cladding corrosion of the Mark 25 assembly.
Date:
July 17, 2001
Creator:
Aleman, S. E.
Object Type:
Report
System:
The UNT Digital Library
Performance of a Drum Type Packaging with Urethane Foam Overpack Subjected to Crush and Other Regulatory Tests
In order to improve the melt rate of high level waste slurry feed being vitrified in the Savannah River Site's (SRS) Defense Waste Processing Facility (DWPF) Melter, a melter glass pump (pump 1) was installed in the DWPF Melter on February 10, 2004. The glass pump increased melt rate by generating a forced convection within the molten glass pool, thereby increasing the heat transfer from the molten glass to the unmolten feed cold cap that is on top of the glass pool. After operating for over four months, the pump was removed on June 22, 2004 due to indications that it had failed. The removed pump exhibited obvious signs of corrosion, had collapsed inward at the glass exit slots at the melt line, and was dog-legged in the same area. This lead to the pump being redesigned to improve its mechanical integrity (increased wall thickness and strength) while maintaining its hydraulic diameter as large as possible. The improved DWPF glass pump (pump 2) was installed on September 15, 2004. The impact of the new design on pump life, along with analysis of the glass pump's impact on melt rate in the DWPF Melter is discussed in this paper.
Date:
July 17, 2005
Creator:
Allen, Smith
Object Type:
Article
System:
The UNT Digital Library
ESTIMATING IMPURITIES IN SURPLUS PLUTONIUM FOR DISPOSITION
The United States holds at least 61.5 metric tons (MT) of plutonium that is permanently excess to use in nuclear weapons programs, including 47.2 MT of weapons-grade plutonium. Surplus inventories will be stored safely by the Department of Energy (DOE) and then transferred to facilities that will prepare the plutonium for permanent disposition. The Savannah River National Laboratory (SRNL) operates a Feed Characterization program for the Office of Fissile Materials Disposition of the National Nuclear Security Administration and the DOE Office of Environmental Management. Many of the items that require disposition are only partially characterized, and SRNL uses a variety of techniques to predict the isotopic and chemical properties that are important for processing through the Mixed Oxide Fuel Fabrication Facility and alternative disposition paths. Recent advances in laboratory tools, including Prompt Gamma Analysis and Peroxide Fusion treatment, provide data on the existing inventories that will enable disposition without additional, costly sampling and destructive analysis.
Date:
July 17, 2013
Creator:
Allender, J. & Moore, E.
Object Type:
Article
System:
The UNT Digital Library
Nonradiological Environmental Report Maamora Site, Morocco
Under the Sister Laboratory Arrangement between Lawrence Livermore National Laboratory (LLNL) and the Moroccan National Center for Nuclear Energy Sciences and Techniques (CNESTEN), environmental sampling and analysis were performed to assess the background concentrations of nonradiological constituents in various environmental media at the Maamora Forest CNESTEN Laboratory Site. Samples were collected from surface soil, surface water and groundwater wells, short-lived vegetation (mainly native grass), and long-lived vegetation (cork oak). Samples were collected inside the property fence line, in the buffer zone surrounding the site, and off site at water locations. The soil and vegetation samples were analyzed for metals and pesticides and screened for polychlorinated biphenyls (PCBs); the water samples were analyzed for metals, general minerals, and pesticides and screened for PCBs.
Date:
July 17, 2003
Creator:
Althouse, P E; Blake, R G; Bandong, B B; Belghit, H & Dehbi, N
Object Type:
Report
System:
The UNT Digital Library
Congressional Record: Its Production, Distribution, and Accessibility
Congressional Record.This report provides information about the Production, Distribution, and Accessibility of Congressional Record. The Congressional Record is the most widely published account of the debates and activities in congress.
Date:
July 17, 2003
Creator:
Amer, Mildred
Object Type:
Report
System:
The UNT Digital Library
Congressional Record: Its Production, Distribution, and Accessibility
The Congressional Record is the most widely recognized published account of the debates and activities in Congress. The Record often reflects the intent of Congress in enacting legislation. This fact sheet is one of a series on the legislative process.
Date:
July 17, 2003
Creator:
Amer, Mildred L.
Object Type:
Report
System:
The UNT Digital Library
Pages of the United States Congress: Selection, Duties, and Program Administration
None
Date:
July 17, 2003
Creator:
Amer, Mildred L.
Object Type:
Report
System:
The UNT Digital Library
Secret Sessions of the House and Senate
None
Date:
July 17, 2003
Creator:
Amer, Mildred L.
Object Type:
Report
System:
The UNT Digital Library
A User's Guide to the Congressional Record
The Congressional Record is a substantially verbatim account of remarks made during the proceedings of the House and Senate, subject only to technical, grammatical, and typographical corrections. It consists of four main sections: the proceedings of the House and Senate, the Extensions of Remarks, and the Daily Digest. This fact sheet is one of a series on the legislative process.
Date:
July 17, 2003
Creator:
Amer, Mildred L.
Object Type:
Report
System:
The UNT Digital Library
An unsymmetrized multifrontal LU factorization
A well-known approach to compute the LU factorization of a general unsymmetric matrix bf A is to build the elimination tree associated with the pattern of the symmetric matrix A + A{sup T} and use it as a computational graph to drive the numerical factorization. This approach, although very efficient on a large range of unsymmetric matrices, does not capture the unsymmetric structure of the matrices. We introduce a new algorithm which detects and exploits the structural unsymmetry of the submatrices involved during the process of the elimination tree. We show that with the new algorithm significant gains both in memory and in time to perform the factorization can be obtained.
Date:
July 17, 2000
Creator:
Amestoy, Patrick R. & Puglisi, Chiara
Object Type:
Report
System:
The UNT Digital Library
Renewable Energy Certificate Program
This project was primarily to develop and implement a curriculum which will train undergraduate and graduate students at the University seeking a degree as well as training for enrollees in a special certification program to prepare individuals to be employed in a broad range of occupations in the field of renewable energy and energy conservation. Curriculum development was by teams of Saint Francis University Faculty in the Business Administration and Science Departments and industry experts. Students seeking undergraduate and graduate degrees are able to enroll in courses offered within these departments which will combine theory and hands-on training in the various elements of wind power development. For example, the business department curriculum areas include economic modeling, finance, contracting, etc. The science areas include meteorology, energy conversion and projection, species identification, habitat protection, field data collection and analysis, etc.
Date:
July 17, 2012
Creator:
Andersen, Gwendolyn S.
Object Type:
Report
System:
The UNT Digital Library
Europe’s Migration Crisis
None
Date:
July 17, 2015
Creator:
Archick, Kristin & Margesson, Rhoda
Object Type:
Report
System:
The UNT Digital Library
Auction-Rate Securities
This report discusses auction-rate securities (ARSs), which most are long-term bonds, although some ARS are structured as preferred shares and so have no maturities.
Date:
July 17, 2012
Creator:
Austin, D. Andrew
Object Type:
Report
System:
The UNT Digital Library
Estimates of Temperature Rise and Pressure Drop Effects of Sample Holder in the HRT Core
None
Date:
July 17, 1956
Creator:
Aven, R. E.
Object Type:
Report
System:
The UNT Digital Library
Evaluation of the appropriate land-surface resolution for climate models. Final report, August 1, 1992--July 31, 1995
The land surface interacts strongly with the atmosphere at all spatial and temporal scales. Therefore, land-surface processes must be represented as accurately as possible in climate models. The investigation conducted under this project was aimed at answering two major questions related to land-surface processes: (1) What are the land-surface characteristics and processes that need to be represented in a climate model? (2) How does one average, in a nonlinear form, land-surface energy fluxes over heterogeneous domain at the scale that is not represented explicitly in the model? Correspondingly, two major tasks were conducted: (1) an evaluation of the relative importance of the various land-surface characteristics based on their impact on the redistribution of energy into turbulent sensible heat flux and turbulent latent heat flux at the ground surface; and (2) an evaluation of the impact of the heterogeneity of these characteristics on land-surface energy and mass fluxes into the atmosphere.
Date:
July 17, 1998
Creator:
Avissar, R.
Object Type:
Report
System:
The UNT Digital Library
Multi-object Feature Detection and Error Correction for NIF Automatic Optical Alignment
Fiducials imprinted on laser beams are used to perform video image based alignment of the beams in the National Ignition Facility (NIF) of Lawrence Livermore National Laboratory. In any laser beam alignment operation, a beam needs to be aligned to a reference location. Generally, the beam and reference fiducials are composed of separate beams, as a result only a single feature of each beam needs to be identified for determining the position of the beam or reference. However, it is possible to have the same beam image contain both the beam and reference fiducials. In such instances, it is essential to separately identify these features. In the absence of wavefront correction or when image quality is poor, the features of such beams may get distorted making it difficult to distinguish between different fiducials. Error checking and correction mechanism must be implemented to avoid misidentification of one type of feature as the other. This work presents the algorithm for multi-object detection and error correction implemented for such a beam line image in the NIF facility. Additionally, we show how when the original algorithm fails a secondary algorithm takes over and provides required location outputs.
Date:
July 17, 2006
Creator:
Awwal, A. S.
Object Type:
Article
System:
The UNT Digital Library
Measurement of CKM-angle gamma with Charmed B0 Meson Decays
This thesis reports measurements of the time-dependent CP asymmetries in fully reconstructed B{sup 0} {yields} (D{sup (*){-+}} and B{sup 0} {yields} D{sup {-+}} {rho}{sup {+-}}) decays in approximately 232 million {Upsilon}(4S) {yields} B{bar B} events, collected with the BABAR detector at the PEP-II asymmetric-energy B factory at the Stanford Linear Accelerator Center in California, as published in Ref. [14]. The phenomenon of CP violation allows one to distinguish between matter and antimatter, and, as such, is one of the essential ingredients needed to explain the apparent abundance of matter over antimatter in the universe. The Standard Model describes the observed elementary particles in terms of three generations of quarks and leptons, as well as the weak, electromagnetic, and strong interactions between them. In the Standard Model, CP violation is incorporated in the Cabibbo-Kobayashi-Maskawa (CKM) matrix, which describes the weak interactions between the quarks. The weak interactions between quarks are described by coupling constants that are functions of three real parameters and one irreducible complex phase. The magnitude of all CP violating effects in the Standard Model is related to this complex phase. The measurement of the CP violating phase of the CKM matrix is an important part of the present …
Date:
July 17, 2007
Creator:
Baak, Max Arjen & /Vrije U., Amsterdam
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library