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9
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Degree Department
Country
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Year
Month
Day
The Mercedes Enterprise (Mercedes, Tex.), Vol. 87, No. 1, Ed. 1 Wednesday, January 6, 1999
Weekly newspaper from Mercedes, Texas that includes local, state, and national news along with advertising.
Date:
January 6, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Metal-Hydrogen Phase Diagrams in the Vicinity of Melting Temperatures
Hydrogen-metal interaction phenomena belong to the most exciting challenges of today's physical metallurgy and physics of solids due to the uncommon behavior of hydrogen in condensed media and to the need for understanding hydrogen's strong negative impact on properties of some high-strength steels and.alloys. The paper cites and summarizes research data on fundamental thermodynamic characteristics of hydrogen in some metals that absorb it endothermally at elevated temperatures. For a number of metal-hydrogen systems, information on some phase diagrams previously not available to the English-speaking scientific community is presented.
Date:
January 6, 1999
Creator:
Shapovalov, V.I.
Object Type:
Article
System:
The UNT Digital Library
Natural Analogues of Nuclear Waste Glass Corrosion.
This report reviews and summarizes studies performed to characterize the products and processes involved in the corrosion of natural glasses. Studies are also reviewed and evaluated on how well the corrosion of natural glasses in natural environments serves as an analogue for the corrosion of high-level radioactive waste glasses in an engineered geologic disposal system. A wide range of natural and experimental corrosion studies has been performed on three major groups of natural glasses: tektite, obsidian, and basalt. Studies of the corrosion of natural glass attempt to characterize both the nature of alteration products and the reaction kinetics. Information available on natural glass was then compared to corresponding information on the corrosion of nuclear waste glasses, specifically to resolve two key questions: (1) whether one or more natural glasses behave similarly to nuclear waste glasses in laboratory tests, and (2) how these similarities can be used to support projections of the long-term corrosion of nuclear waste glasses. The corrosion behavior of basaltic glasses was most similar to that of nuclear waste glasses, but the corrosion of tektite and obsidian glasses involves certain processes that also occur during the corrosion of nuclear waste glasses. The reactions and processes that control basalt …
Date:
January 6, 1999
Creator:
Abrajano, T. A., Jr.; Ebert, W. L. & Luo, J. S.
Object Type:
Report
System:
The UNT Digital Library
[News Clip: Fan Reax]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 6, 1999
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Numerical Modeling Tools for the Prediction of Solution Migration Applicable to Mining Site
Mining has always had an important influence on cultures and traditions of communities around the globe and throughout history. Today, because mining legislation places heavy emphasis on environmental protection, there is great interest in having a comprehensive understanding of ancient mining and mining sites. Multi-disciplinary approaches (i.e., Pb isotopes as tracers) are being used to explore the distribution of metals in natural environments. Another successful approach is to model solution migration numerically. A proven method to simulate solution migration in natural rock salt has been applied to project through time for 10,000 years the system performance and solution concentrations surrounding a proposed nuclear waste repository. This capability is readily adaptable to simulate solution migration around mining.
Date:
January 6, 1999
Creator:
Martell, M. & Vaughn, P.
Object Type:
Article
System:
The UNT Digital Library
The Panola Watchman (Carthage, Tex.), Vol. 126, No. 2, Ed. 1 Wednesday, January 6, 1999
Semiweekly newspaper from Carthage, Texas that includes local, state, and national news along with advertising.
Date:
January 6, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Pawhuska Journal-Capital (Pawhuska, Okla.), Vol. 89, No. 2, Ed. 1 Wednesday, January 6, 1999
Semiweekly newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 6, 1999
Creator:
Gann, Sherry
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Penny Record (Bridge City, Tex.), Vol. 40, No. 35, Ed. 1 Wednesday, January 6, 1999
Weekly newspaper from Bridge City, Texas that includes local, state, and national news along with advertising.
Date:
January 6, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Perry Daily Journal (Perry, Okla.), Vol. 106, No. 3, Ed. 1 Wednesday, January 6, 1999
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 6, 1999
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0924.0277]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Capt. Tom Murray says first "hello" to his daughter, Michelle, being held by Mrs. Murray at Will Rogers World Airport."
Date:
January 6, 1999
Creator:
Lucas, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Production of Gas-Solid Structures in Aluminum and Nickel Alloys by Gasar Processing
Experimental data on directional and bulk solidification of hydrogen-charged samples of aluminum alloy A356 and nickel alloy Inconel 718 are discussed. The solidification structure of the porous zone is shown to be dependent on many process variables. Of these variables, hydrogen content in the melt prior to solidification, and furnace atmospheric pressure during solidification play the decisive role. Also important are the furnace atmosphere composition, the solidification velocity, and the temperature distribution of the liquid metal inside the mold.
Date:
January 6, 1999
Creator:
Apprill, J.M.; Baldwin, M.D.; Maguire, M.C.; Miszkiel, M.E. & Shapovalov, V.I.
Object Type:
Article
System:
The UNT Digital Library
Report on the international workshop on cold moderators for pulsed neutron sources.
The International Workshop on Cold Moderators for Pulsed Neutron Sources resulted from the coincidence of two forces. Our sponsors in the Materials Sciences Branch of DOE's Office of Energy Research and the community of moderator and neutron facility developers both realized that it was time. The Neutron Sources Working Group of the Megascience Forum of the Organization for Economic Cooperation and Development offered to contribute its support by publishing the proceedings, which with DOE and Argonne sponsorship cemented the initiative. The purposes of the workshop were: to recall and improve the theoretical groundwork of time-dependent neutron thermalization; to pose and examine the needs for and benefits of cold moderators for neutron scattering and other applications of pulsed neutron sources; to summarize experience with pulsed source, cold moderators, their performance, effectiveness, successes, problems and solutions, and the needs for operational data; to compile and evaluate new ideas for cold moderator materials and geometries; to review methods of measuring and characterizing pulsed source cold moderator performance; to appraise methods of calculating needed source characteristics and to evaluate the needs and prospects for improvements; to assess the state of knowledge of data needed for calculating the neutronic and engineering performance of cold moderators; …
Date:
January 6, 1999
Creator:
Carpenter, J. M.
Object Type:
Article
System:
The UNT Digital Library
Robots Working with Hazardous Materials
While many research and development activities take place at Sandia National Laboratories' Intelligent Systems and Robotics Center (ISRC), where the "rubber meets the road" is in the ISRC'S delivered systems. The ISRC has delivered several systems over the last few years that handle hazardous materials on a daily basis, and allow human workers to move to a safer, supervisory role than the "hands-on" operations that they used to perform. The ISRC at Sandia performs a large range of research and development activities, including development and delivery of one-of-a-kind robotic systems for use with hazardous materials. Our mission is to create systems for operations where people can't or don't want to perform the operations by hand, and the systems described in this article are several of our first-of-a-kind deliveries to achieve that mission.
Date:
January 6, 1999
Creator:
Amai, W. & Fahrenholtz, J.
Object Type:
Article
System:
The UNT Digital Library
Sandia National Laboratories Institutional Plan: FY 1999-2004
This Institutional Plan is the most comprehensive yearly "snapshot" available of Sandia National Laboratories' major programs, facilities, human resources, and budget. The document also includes overviews of our missions, organization, capabilities, planning functions, milestones, and accomplishments. The document's purpose is to provide the above information to the US Department of Energy, key congressional committees, Sandia management, and other present and potential customers. Chapter 2 presents information about Sandia's mission and summarizes our recent revision of Sandia's Strategic Plan. Chapter 3 presents an overview of Sandia's strategic objectives, chapter 4 lists laboratory goals and milestones for FY 1999, and chapter 5 presents our accomplishments during FY 1998. Chapters 3 through 5 are organized around our eight strategic objectives. The four primary objectives cover nuclear weapons responsibilities, nonproliferation and materials control, energy and critical infrastructures, and emerging national security threats. The major programmatic initiatives are presented in chapter 7. However, the programmatic descriptions in chapter 6 and the Associated funding tables in chapter 9 continue to be presented by DOE Budget and Reporting Code, as in previous Sandia institutional plans. As an aid to the reader, the four primary strategic objectives in chapter 3 are cross-referenced to the program information in chapter …
Date:
January 6, 1999
Creator:
Garber, D.P.
Object Type:
Report
System:
The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 84, No. 98, Ed. 1 Wednesday, January 6, 1999
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 6, 1999
Creator:
Horn, Richard A.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Securities and Exchange Commission: Regulation of Exchanges and Alternative Trading Systems
Other written product issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO reviewed the Securities and Exchange Commission's (SEC) new rule on the regulation of exchanges and alternative trading systems (ATS). GAO noted that: (1) the rule would allow ATS to choose whether to register as national securities exchanges, or to register as broker-dealers, depending on their activities and trading volume; (2) in addition, Regulation ATS will require alternative trading systems that trade a certain volume of securities to make their best prices known to the public and allow non-subscribers access to those prices; (3) the final rule would also amend Rules 6a-1, 6a-2, and 6a-3 regarding registration as a national securities exchange; and (4) SEC complied with applicable requirements in promulgating the rule."
Date:
January 6, 1999
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
The Seminole Sentinel (Seminole, Tex.), Vol. 92, No. 23, Ed. 1 Wednesday, January 6, 1999
Semiweekly newspaper from Seminole, Texas that includes local, state, and national news along with advertising.
Date:
January 6, 1999
Creator:
Dow, M. Gene & Fisher, David
Object Type:
Newspaper
System:
The Portal to Texas History
Spiraling Edge: Fast Surface Reconstruction from Partially Organized Sample Points
Many applications produce three-dimensional points that must be further processed to generate a surface. Surface reconstruction algorithms that start with a set of unorganized points are extremely time-consuming. Often, however, points are generated such that there is additional information available to the reconstruction algorithm. We present a specialized algorithm for surface reconstruction that is three orders of magnitude faster than algorithms for the general case. In addition to sample point locations, our algorithm starts with normal information and knowledge of each point's neighbors. Our algorithm produces a localized approximation to the surface by creating a star-shaped triangulation between a point and a subset of its nearest neighbors. This surface patch is extended by locally triangulating each of the points along the edge of the patch. As each edge point is triangulated, it is removed from the edge and new edge points along the patch's edge are inserted in its place. The updated edge spirals out over the surface until the edge encounters a surface boundary and stops growing in that direction, or until the edge reduces to a small hole that fills itself in.
Date:
January 6, 1999
Creator:
Angel, E. & Crossno, P.
Object Type:
Article
System:
The UNT Digital Library
A transport-based condensed history algorithm
Condensed history algorithms are approximate electron transport Monte Carlo methods in which the cumulative effects of multiple collisions are modeled in a single step of (user-specified) path length s{sub 0}. This path length is the distance each Monte Carlo electron travels between collisions. Current condensed history techniques utilize a splitting routine over the range 0 {le} s {le} s{sub 0}. For example, the PEnELOPE method splits each step into two substeps; one with length {xi}s{sub 0} and one with length (1 {minus}{xi})s{sub 0}, where {xi} is a random number from 0 < {xi} < 1. because s{sub 0} is fixed (not sampled from an exponential distribution), conventional condensed history schemes are not transport processes. Here the authors describe a new condensed history algorithm that is a transport process. The method simulates a transport equation that approximates the exact Boltzmann equation. The new transport equation has a larger mean free path than, and preserves two angular moments of, the Boltzmann equation. Thus, the new process is solved more efficiently by Monte Carlo, and it conserves both particles and scattering power.
Date:
January 6, 1999
Creator:
Tolar Jr, D R
Object Type:
Article
System:
The UNT Digital Library
Věstník (Temple, Tex.), Vol. 87, No. 1, Ed. 1 Wednesday, January 6, 1999
Weekly Czech and English language newspaper from Temple, Texas published as the official organ of the Slavonic Benevolent Order of the State of Texas that includes news of interest to members along with advertising.
Date:
January 6, 1999
Creator:
Vanicek, Brian
Object Type:
Newspaper
System:
The Portal to Texas History
The Wylie News (Wylie, Tex.), Vol. 52, No. 32, Ed. 1 Wednesday, January 6, 1999
Weekly newspaper from Wylie, Texas that includes local, state and national news along with advertising.
Date:
January 6, 1999
Creator:
Engbrock, Chad B.
Object Type:
Newspaper
System:
The Portal to Texas History
Ensemble: 1999-02-06 - UNT Opera Theater
Concert performed at the UNT College of Music Campus Theater.
Date:
February 6, 1999
Creator:
UNT Opera Theater
Object Type:
Sound
System:
The UNT Digital Library
[Funeral Program for Thomas H. Griffin, February 6, 1999]
Funeral program for Mr. Thomas H. Griffin, born June 20, 1927 and died February 1, 1999. The funeral was held February 6, 1999 at Hardy's Mortuary Chapel, officiated by Rev. A. J. Malone. The funeral arrangements were made through Hardy's Mortuary and he was buried in Meadowlawn Memorial Park in San Antonio, Texas.
Date:
February 6, 1999
Creator:
unknown
Object Type:
Pamphlet
System:
The Portal to Texas History
The Gilmer Mirror (Gilmer, Tex.), Vol. 122, No. 11, Ed. 1 Saturday, February 6, 1999
Semiweekly newspaper from Gilmer, Texas that includes local, state, and national news along with advertising.
Date:
February 6, 1999
Creator:
Overton, Mac
Object Type:
Newspaper
System:
The Portal to Texas History