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Microstructural dependence of cavitation damage in polycrystalline materials. Final report, 1 November 1992--31 October 1994
Microstructure of a sample of Inconel X-750 damaged by ISCC (intergranular stress corrosion cracking) was examined after fatigue precracking in a high-temperature environment of deaerated water. Orientation imaging microscopy was used to reveal the microstructure adjacent to the crack path. General high-angle boundaries were found to be most susceptible to cracking. An ordering of the susceptibilities to ISCC damage was proposed; all boundaries have been classified into one of 12 categories. A model is proposed to predict the crack path for ISCC based on ex situ record of damage probabilities. The cracking is modeled as a Markov chain on a regular hexagonal array of grain boundaries representing the connectivity of the network.
Date:
February 5, 1996
Creator:
Adams, B.L.
Object Type:
Report
System:
The UNT Digital Library
The Boerne Star (Boerne, Tex.), Vol. 92, No. 19, Ed. 1 Friday, April 5, 1996
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
April 5, 1996
Creator:
Aldridge, Leon & D'Amico, Rob
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 92, No. 46, Ed. 1 Friday, July 5, 1996
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
July 5, 1996
Creator:
Aldridge, Leon & D'Amico, Rob
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 92, No. 80, Ed. 1 Tuesday, November 5, 1996
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
November 5, 1996
Creator:
Aldridge, Leon & D'Amico, Rob
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 92, No. 10, Ed. 1 Tuesday, March 5, 1996
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
March 5, 1996
Creator:
Aldridge, Leon & Priddy, Travis
Object Type:
Newspaper
System:
The Portal to Texas History
[Photograph 2012.201.B1279.0012]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Mary Ann Terrell / OKC"
Date:
January 5, 1996
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Experiments on hot and dense laser-produced plasmas
Plasmas generated by irradiating targets with {approx}20 kJ of laser energy are routinely created in inertial confinement fusion research. X-ray spectroscopy provides one of the few methods for diagnosing the electron temperature and electron density. For example, electron densities approaching 10{sup 24} cm{sup -3} have been diagnosed by spectral linewidths. However, the accuracy of the spectroscopic diagnostics depends on the population kinetics, the radiative transfer, and the line shape calculations. Analysis for the complex line transitions has recently been improved and accelerated by the use of a database where detailed calculations can be accessed rapidly and interactively. Examples of data from Xe and Ar doped targets demonstrate the current analytic methods. First we will illustrate complications that arise from the presence of a multitude of underlying spectral lines. Then, we will consider the Ar He-like 1s{sup 2}({sup 1}S{sub 0}) - 1s3p({sup 1}P{sub 0}) transition where ion dynamic effects may affect the profile. Here, the plasma conditions are such that the static ion microfield approximation is no longer valid; therefore in addition to the width, the details of the line shape can be used to provide additional information. We will compare the data to simulations and discuss the possible pitfalls involved …
Date:
August 5, 1996
Creator:
Back, C. A.; Woolsey, N. C.; Asfaw, A.; Glenzer, S. H.; Hammel, B. A.; Keane, C. J. et al.
Object Type:
Article
System:
The UNT Digital Library
Tank characterization report for single-shell tank 241-U-109
This characterization report summarizes information on the historical uses, current status, and sampling and analysis results of waste stored in tank 241-U-109.
Date:
September 5, 1996
Creator:
Baldwin, J. H.
Object Type:
Report
System:
The UNT Digital Library
News Bulletin (Castroville, Tex.), Vol. 37, No. 36, Ed. 1 Thursday, September 5, 1996
Weekly newspaper from Castroville, Texas that includes local, state, and national news along with extensive advertising.
Date:
September 5, 1996
Creator:
Barnes, Thomas
Object Type:
Newspaper
System:
The Portal to Texas History
News Bulletin (Castroville, Tex.), Vol. 37, No. 49, Ed. 1 Thursday, December 5, 1996
Weekly newspaper from Castroville, Texas that includes local, state, and national news along with extensive advertising.
Date:
December 5, 1996
Creator:
Barnes, Thomas
Object Type:
Newspaper
System:
The Portal to Texas History
SmartShelf{trademark}: Report of activities for fiscal year 1996
The SmartShelf{trademark} system is designated to maintain an up-to-the-minute inventory of containers or other assets. Through the use of Dallas Semiconductor touch memory devices affixed to containers and entrusted to authorized operators, the system can determine which operator added or removed which container and when the transaction occurred. Through the use of a PC-based data base system, reports of the current status of all containers and nodes can be generated in minutes. This report covers activities on the SmartShelf{trademark} project for the period 1 October 1995 through 30 September 1996. During this year, project team members have advanced the state of the hardware and software from rough prototypes to a working system ready for field trials.The project team has developed an intimate working knowledge of the hardware and software, and has become expert at implementations of Dallas Semiconductor touch memory devices. System hardware includes a desktop PC running LabView and Microsoft Access, and an STD-bus 8086 computer to monitor container storage locations (nodes). The STD-bus computer monitors up to 128 nodes, and responds to operator actions (adding or removing containers) within 10 seconds. The PC uses LabView software to query the STD-bus machine to obtain records of transactions, and to …
Date:
December 5, 1996
Creator:
Bell, Z.W.; Lawson, R.L. & Long, C.D.
Object Type:
Report
System:
The UNT Digital Library
The Harper Herald (Harper, Tex.), Vol. 68, No. 94, Ed. 1 Tuesday, March 5, 1996
Weekly newspaper from Harper, Texas that includes local, state, and national news along with advertising.
Date:
March 5, 1996
Creator:
Bishop, Karen
Object Type:
Newspaper
System:
The Portal to Texas History
The Harper Herald (Harper, Tex.), Vol. 68, No. 129, Ed. 1 Tuesday, November 5, 1996
Weekly newspaper from Harper, Texas that includes local, state, and national news along with advertising.
Date:
November 5, 1996
Creator:
Bishop, Karen
Object Type:
Newspaper
System:
The Portal to Texas History
Oral History Interview with Leo Nugent, October 5, 1996
Access:
Use of this item is restricted to the UNT Community
Interview with Leo Nugent, an Army Air Corps veteran, concerning his experiences at Hickam Field with the 11th Bombardment Group during the Japanese attack at Pearl Harbor on December 7, 1941. Appendix includes a photocopied data sheet on the 11th and 5th Bomb Groups [1 leaf]
Date:
October 5, 1996
Creator:
Blanchette, Scott & Nugent, Leo B.
Object Type:
Text
System:
The UNT Digital Library
Unified Einstein-Virasoro Master Equation in the General Non-Linear Sigma Model
The Virasoro master equation (VME) describes the general affine-Virasoro construction $T=L^abJ_aJ_b+iD^a \dif J_a$ in the operator algebra of the WZW model, where $L^ab$ is the inverse inertia tensor and $D^a $ is the improvement vector. In this paper, we generalize this construction to find the general (one-loop) Virasoro construction in the operator algebra of the general non-linear sigma model. The result is a unified Einstein-Virasoro master equation which couples the spacetime spin-two field $L^ab$ to the background fields of the sigma model. For a particular solution $L_G^ab$, the unified system reduces to the canonical stress tensors and conventional Einstein equations of the sigma model, and the system reduces to the general affine-Virasoro construction and the VME when the sigma model is taken to be the WZW action. More generally, the unified system describes a space of conformal field theories which is presumably much larger than the sum of the general affine-Virasoro construction and the sigma model with its canonical stress tensors. We also discuss a number of algebraic and geometrical properties of the system, including its relation to an unsolved problem in the theory of $G$-structures on manifolds with torsion.
Date:
June 5, 1996
Creator:
Boer, J. de & Halpern, M.B.
Object Type:
Article
System:
The UNT Digital Library
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 103, No. 8, Ed. 1 Thursday, September 5, 1996
Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date:
September 5, 1996
Creator:
Bridges, G. Frank & Bridges, Georgie
Object Type:
Newspaper
System:
The Portal to Texas History
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 104, No. 20, Ed. 1 Thursday, December 5, 1996
Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date:
December 5, 1996
Creator:
Bridges, G. Frank & Bridges, Georgie
Object Type:
Newspaper
System:
The Portal to Texas History
The Oklahoma Daily (Norman, Okla.), Vol. 81, No. 10, Ed. 1 Thursday, September 5, 1996
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
September 5, 1996
Creator:
Brooks, Lori
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 81, No. 34, Ed. 1 Saturday, October 5, 1996
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
October 5, 1996
Creator:
Brooks, Lori
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 81, No. 56, Ed. 1 Tuesday, November 5, 1996
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
November 5, 1996
Creator:
Brooks, Lori
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Daily (Norman, Okla.), Vol. 81, No. 76, Ed. 1 Thursday, December 5, 1996
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
December 5, 1996
Creator:
Brooks, Lori
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Agreements to Promote Fishery Conservation and Management in International Waters
Declining fish populations threaten an important food source. Natural catastrophes, pollution, habitat destruction, and overfishing contribute to the depletion of fish stocks. Overexploitation of fishery resources often occurs when management allows expanding and increasingly efficient fishing fleets to continue harvesting dwindling supplies. Although prevalent, overexploitation is not universal and its extent varies among areas, species, and fisheries. This report discusses the issue of overfishing and its possible consequences, as well as domestic and international efforts to combat overfishing.
Date:
January 5, 1996
Creator:
Buck, Eugene H.
Object Type:
Report
System:
The UNT Digital Library
The Llano News (Llano, Tex.), Vol. 108, No. 47, Ed. 1 Thursday, September 5, 1996
Weekly newspaper from Llano, Texas that includes local, state, and national news along with advertising.
Date:
September 5, 1996
Creator:
Buckner, Walter L.
Object Type:
Newspaper
System:
The Portal to Texas History
The Llano News (Llano, Tex.), Vol. 109, No. 8, Ed. 1 Thursday, December 5, 1996
Weekly newspaper from Llano, Texas that includes local, state, and national news along with advertising.
Date:
December 5, 1996
Creator:
Buckner, Walter L.
Object Type:
Newspaper
System:
The Portal to Texas History