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open access

Immigration Benefits: Sixth Report Required by the Haitian Immigration Fairness Act of 1998

Description: Correspondence issued by the General Accounting Office with an abstract that begins "The Haitian Refugee Immigration Fairness Act of 1998 allows Haitian nationals and their dependents to apply to adjust their status to legal permanent residence. The act requires the Comptroller General to report every six months on the number of Haitian nationals who have applied and been approved for legal permanent residence status. GAO found that, as of September 30, 2001, the Immigration and Naturalization … more
Date: October 22, 2001
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Financial Management: Audit of the Centennial of Flight Commission

Description: Correspondence issued by the General Accounting Office with an abstract that begins "The Centennial of Flight Commission was created in 1998 to provide recommendations and advice to the President, Congress, and federal agencies on ways to encourage and promote national and international participation and sponsorships in commemoration of the centennial of powered flight. All 45 of the Commission's recorded financial transactions for fiscal years 2000 and 1999 were supported by documentation that… more
Date: October 22, 2001
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Economic Globalization and a Nuclear Renaissance

Description: The phenomenon of globalization has become increasingly well recognized, documented, and analyzed in the last several years. Globalization, the integration of markets and intra-firm competition on a worldwide basis, involves complex behavioral and mindset changes within a firm that facilitate global competition. The changes revolve around efficient information flow and rapid deployment of technology. The objective of this report is to examine the probable characteristics of a global nuclear ren… more
Date: October 22, 2001
Creator: Wood, Thomas W.; Johnson, Wayne L. & Parker, Brian M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Measurement and Calculation of Electrochemical Potentials in Hydrogenated High Temperature Water, including an Evaluation of the Yttria-Stabilized Zirconia/Iron-Iron Oxide (Fe/Fe3O4) Probe as Reference Electrode

Description: The importance of knowing the electrochemical corrosion potential (ECP, also referred to as E{sub con}) of nickel-base alloys in hydrogenated water is related to the need to understand the effects of dissolved (i.e., aqueous) hydrogen concentration ([H{sub 2}]) on primary water stress corrosion cracking (PWSCC). Also, the use of a reference electrode (RE) can improve test quality by heightening the ability to detect instances of out-of-specification or unexpected chemistry. Three methods are us… more
Date: October 22, 2001
Creator: Attanasio, Steven A.; Morton, David S. & Ando, Mark A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Modeling Transport in Fractured Porous Media with the Random-Walk Particle Method: The Transient Activity Range and the Particle-Transfer Probability

Description: Multiscale features of transport processes in fractured porous media make numerical modeling a difficult task, both in conceptualization and computation. Modeling the mass transfer through the fracture-matrix interface is one of the critical issues in the simulation of transport in a fractured porous medium. Because conventional dual-continuum-based numerical methods are unable to capture the transient features of the diffusion depth into the matrix (unless they assume a passive matrix medium),… more
Date: October 22, 2001
Creator: Pan, Lehua & Bodvarsson, G.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Automatic Software Processing for Inventories of Nuclides (ASPIN)

Description: EQ6 users have difficulties tracking isotopic concentrations in a system with chemical and nuclear decay reactions. The capability to track isotopic concentrations is particularly important for simulating the degradation of the spent nuclear fuels. Isotopic tracking is necessary to evaluate the criticality risk associated with fissile material relocation inside of a disposal container. A code called ASPRIN (Automatic Software PRocessing, Inventories of Nuclides) was created to allow isotopic tr… more
Date: October 22, 2001
Creator: Gratton, Luca & Rammsy, J. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Keller fatal]

Description: Video footage from the KXAS-TV/NBC 5 television station in Fort Worth, Texas, covering a news story.
Date: October 22, 2001, 6:00 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: Anthrax arrest]

Description: Video footage from the KXAS-TV/NBC 5 television station in Fort Worth, Texas, covering a news story.
Date: October 22, 2001, 10:00 p.m.
Duration: 17 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

IEEE 802.11 Wireless LAN Security White Paper

Description: Given the increased productivity and growing popularity of wireless communications in general, and wireless data communications in particular, this paper outlines the protocols, security implications, and architectures of IEEE Std. 802.11-1999 wireless LANs (WLANs) and makes recommendations regarding a phased implementation of WLANs at LLNL. This project is driven by the need for convenient and secure access to the Internet for Laboratory visitors and to the internal network for Laboratory empl… more
Date: October 22, 2001
Creator: King, Jason S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Arbitrary Lagrangian-Eulerian Method with Local Structured Adaptive Mesh Refinement for Modeling Shock Hydrodynamics

Description: A new method that combines staggered grid Arbitrary Lagrangian-Eulerian (ALE) techniques with structured local adaptive mesh refinement (AMR) has been developed for solution of the Euler equations. This method facilitates the solution of problems currently at and beyond the boundary of soluble problems by traditional ALE methods by focusing computational resources where they are required through dynamic adaption. Many of the core issues involved in the development of the combined ALEAMR method … more
Date: October 22, 2001
Creator: Anderson, R W; Pember, R B & Elliott, N S
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Detection of Special Operations Forces Using Night Vision Devices

Description: Night vision devices, such image intensifiers and infrared imagers, are readily available to a host of nations, organizations, and individuals through international commerce. Once the trademark of special operations units, these devices are widely advertised to ''turn night into day''. In truth, they cannot accomplish this formidable task, but they do offer impressive enhancement of vision in limited light scenarios through electronically generated images. Image intensifiers and infrared imager… more
Date: October 22, 2001
Creator: Smith, C.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Compositional Effects on Aluminide Oxidation Performance: Objectives for Improved Bond Coats

Description: In order to achieve long thermal barrier coating lifetimes, underlying metallic bond coats need to form adherent, slow-growing Al{sub 2}O{sub 3} layers. A set of guidelines for developing aluminide bond coat compositions is proposed in order to maximize oxidation performance, i.e. forming a slow-growing adherent alumina scale. These criteria are based on results from cast, model alloy compositions and coatings made in a laboratory-scale chemical vapor deposition facility. Aluminide coatings are… more
Date: October 22, 2001
Creator: Pint, B. A.; Haynes, J. A.; More, K. L.; Wright, I. G. & Leyens, C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Long-Term Stability of Ceramics in Liquid Lithium

Description: Two candidate materials for insulating coatings in a lithium-cooled fusion reactor have been exposed to lithium in 1000 h isothermal tests from 400-800 C to determine their maximum compatibility temperature. Bulk samples of AlN + 5 wt%Y{sub 2}O{sub 3} showed significant mass loss at 600 C and higher temperatures. The amount of attack was reduced when AlN + 0.04 wt%Y was tested. Characterization by Auger spectroscopy of a AlN + 0.04 wt%Y specimen exposed at 600 C indicated the possibility of a l… more
Date: October 22, 2001
Creator: Pint, B. A.; Chitwood, L. D. & Di Stefano, J. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Microstructure Development During Sintering of TiC-Ni3A1 Cermets

Description: TiC-Ni{sub 3}Al cermets are under development for application in diesel engines because of desirable physical properties and wear resistance. Powder compacts with binder contents from 30-50 vol. % were fabricated by pressureless sintering under vacuum followed by low gas pressure isostatic pressing. Increasing the Ni{sub 3}Al content improved densification when using prealloyed powders as expected. However, when the Ni{sub 3}Al was formed by in-situ reaction synthesis of Ni and NiAl, densificat… more
Date: October 22, 2001
Creator: Tiegs, T. N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Economic Globalization and a Nuclear Renaissance

Description: The phenomenon of globalization has become increasingly well recognized, documented, and analyzed in the last several years. Globalization, the integration of markets and intra-firm competition on a worldwide basis, involves complex behavioral and mindset changes within a firm that facilitate global competition. The changes revolve around efficient information flow and rapid deployment of technology. The objective of this report is to examine the probable characteristics of a global nuclear ren… more
Date: October 22, 2001
Creator: Wood, Thomas W.; Johnson, Wayne L. & Parker, Brian M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Why Do Kraft Recovery Boiler Composite Floor Tubes Crack?

Description: Cracks were first reported in 1992 in co-extruded 304L stainless steel/SA210 Gd Al carbon steel floor tubes of North American black liquor recovery boilers. Since then, a considerable amount of information has been collected on the tube environment, crack characteristics, the stress state of the tubes, and the crack initiation and propagation mechanisms. These studies have identified both operating procedures that apparently can greatly lessen the likelihood of crack formation in the stainless … more
Date: October 22, 2001
Creator: Keiser, J. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Improved Materials for Use as Components in Kraft Black Liquor Recovery Boilers

Description: This Cooperative Research and Development Agreement (CRADA) was undertaken to evaluate current and improved materials and materials processing conditions for use as components in kraft black liquor recovery boilers and other unit processes. The main areas addressed were: (1) Improved Black Liquor Nozzles, (2) Weld Overlay of Composite Floor Tubes, and (3) Materials for Lime Kilns. Iron aluminide was evaluated as an alternate material for the nozzles used to inject an aqueous solution known as b… more
Date: October 22, 2001
Creator: Keiser, J. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High Temperature Corrosion Behavior of Iron Aluminide Alloys and Coatings

Description: A multi-year effort has been focused on optimizing the long-term oxidation performance of ingot-processed (IP) and oxide-dispersion strengthened (ODS) Fe{sub 3}Al and iron aluminide-based coatings. Based on results from several composition iterations, a Hf-doped alloy (Fe-28Al-2Cr-0.05at.%Hf) has been developed with significantly better high temperature oxidation resistance than other iron aluminides. The scale adhesion is not significantly better; however, the {alpha}-Al{sub 2}O{sub 3} scale g… more
Date: October 22, 2001
Creator: Pint, B. A.; Leyens, C.; Regina, J. R.; Tortorelli, P. F. & Wright, I. G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Characterization of Thermally-Cycled Alumina Scales

Description: Cross-sectional transmission electron microscopy was used to characterize the alumina scales formed on several Ni-base alumina-formers. The alumina scale microstructure of Ni-20at% Cr-19Al-0.05Y after 100, 1h cycles at 1100 C was compared to an isothermally-grown scale. Despite being near the onset of mass loss in cyclic testing, very few defects were noted in either scale microstructure. The more adherent scales that form on Hf-doped NiAl and Ni-49at% Al-2Cr were also characterized. With the a… more
Date: October 22, 2001
Creator: Pint, B. A.; More, K. L.; Wright, I. G. & Tortorelli, P. F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Reirradiation Response Rate of a High-Copper Reactor Pressure Vessel Weld

Description: The Charpy impact response of reirradiated Heavy-Section Steel Irradiation (HSSI) Program Weld 73W has been determined at three fluence levels. The Charpy specimens had previously been irradiated at 288 C to 1.8 x 10{sup 19} cm{sup -2} (E > 1 MeV) and annealed at 454 C for 168 h. The results show that the change in the 41-J Charpy energy level transition temperature (OTT{sub 41-J}) of the reirradiated specimens is slightly higher than predicted by the vertical shift method, but significantly… more
Date: October 22, 2001
Creator: Iskander, S. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Compositions, Functions, and Testing of Friction Brake Materials and Their Additives

Description: The purpose of this report is to present a survey of commercial brake materials and additives, and to indicate their typical properties and functions, especially as regards their use in heavy trucks. Most truck pad and shoe materials described here were designed to wear against cast iron. Brake material test methods are also briefly described. This report does not address issues associated with the fabrication and manufacturing of brake materials. Since there are literally thousands of brake ma… more
Date: October 22, 2001
Creator: Blau, PJ
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The NABIR Strategic Plan 2001

Description: For more than 50 years, the U.S. created a vast network of more than 113 facilities for research, development, and testing of nuclear materials. As a result of these activities, subsurface contamination has been identified at over 7,000 discrete sites across the U.S. Department of Energy (DOE) complex. With the end of the Cold War threat, the DOE has shifted its emphasis to remediation, decommissioning, and decontamination of the immense volumes of contaminated groundwater, sediments, and struc… more
Date: October 22, 2001
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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