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Web-interfaced Nonlinear Optical Waveguide and Photonic Crystal Simulator

Description: We report on the development of new methods for the computation of spectral bandpass properties of photonic crystals and for the electromagnetic wave propagation in second order nonlinear optical waveguides. The former is based on a generalization of characteristic matrices while the latter is based on path integrals. Accurate and efficient propagation methods and algorithms form the basis for the construction of design tools for integrated optics.
Date: June 15, 2002
Creator: Enguehard, S. & Hatfield, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Direct to Digital Holography

Description: In this CRADA, Oak Ridge National Laboratory (ORNL) assisted nLine Corporation of Austin, TX in the development of prototype semiconductor wafer inspection tools based on the direct-to-digital holographic (DDH) techniques invented at ORNL. Key components of this work included, testing of DDH for detection of defects in High Aspect Ratio (HAR) structures, development of image processing techniques to enhance detection capabilities through the use of both phase and intensity, and development of m… more
Date: June 15, 2002
Creator: Bingham, P.R. & Tobin, K.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Geothermal reservoir simulation to enhance confidence in predictions for nuclear waste disposal

Description: Numerical simulation of geothermal reservoirs is useful and necessary in understanding and evaluating reservoir structure and behavior, designing field development, and predicting performance. Models vary in complexity depending on processes considered, heterogeneity, data availability, and study objectives. They are evaluated using computer codes written and tested to study single and multiphase flow and transport under nonisothermal conditions. Many flow and heat transfer processes modeled in… more
Date: June 15, 2002
Creator: Kneafsey, Timothy J.; Pruess, Karsten; O'Sullivan, Michael J. & Bodvarsson, Gudmundur S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Biofiltration of Volatile Pollutants: Solubility Effects

Description: This project investigates and collects fundamental partitioning data for a variety of sparingly soluble subsurface contaminants (e.g., TCE, etc.) between vapor, aqueous phase, and matrices containing substantial quantities of biomass and biomass components. Due to the difficulty of obtaining these measurements, environmental models have generally used solubility constants of chemicals in pure water or, in a few rare cases, simple linear models. Our prior EMSP work has shown that the presence of… more
Date: June 15, 2002
Creator: Davison, Brian H. & Barton, John W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Microbially-Promoted Solubilization of Steel Corrosion Products and Fate of Associated Actinides

Description: Microorganisms have the capacity to modify iron oxides during anaerobic respiration. When the dissimilatory sulfate-reducing bacterium Desulfovibrio desulfuricans G20 respires soluble sulfate during colonization of the solid-phase iron oxide hematite, the sulfide product reacts with the iron to produce the insoluble iron sulfide, pyrrhotite. When soluble uranium is present as uranyl ion, these microorganisms reduce the U(VI) to U(IV) as insoluble uraninite on the hematite surface. There is also… more
Date: June 15, 2002
Creator: Geesey, Gill; Magnuson, Timothy & Neal, Andrew
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A New Method for In-situ Characterization of Important Actinides and Technetium Compounds via Fiberoptic Surface Enhanced Raman Spectroscopy (SERS)

Description: This project serves to fill information gap through the development of a novel surface-enhanced Raman scattering (SERS) spectroscopy to selectively and sensitively monitor and characterize the chemical speciation of radionuclides at trace levels. The SERS technique permits both of these measurements to be made simultaneously, and results in significant improvement over current methods in reducing time of analysis, cost, and sample manipulation. Our overall goal is (a) to develop a scientific ba… more
Date: June 15, 2002
Creator: Dai, Sheng & Gu, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[Pig Foot and a Bottle of Beer, Part 1 of 2]

Description: Video recording from The Black Academy of Arts and Letters recorded during their Pig Foot and a Bottle of Beer event in 2002. This video features a musical revue performance starring artists Martha Burks and Liz Mikel live on stage at Clarence Muse Café Theatre. This video is Part 1 of 2 of the event.
Date: June 15, 2002
Duration: 1 hour 15 minutes 50 seconds
Item Type: Refine your search to only Video
Location: 32.773743 -96.797841
Partner: UNT Libraries Special Collections
captions transcript

[Pig Foot and a Bottle of Beer, Part 2 of 2]

Description: Video recording from The Black Academy of Arts and Letters recorded during their Pig Foot and a Bottle of Beer event in 2002. This video features a musical revue performance starring artists Martha Burks and Liz Mikel live on stage at Clarence Muse Café Theatre. This video is Part 2 of 2 of the event.
Date: June 15, 2002
Duration: 1 hour 4 minutes 37 seconds
Item Type: Refine your search to only Video
Location: 32.773743 -96.797841
Partner: UNT Libraries Special Collections
open access

Fission-Product Separation Based on Room-Temperature Ionic Liquids (OR08SP24-16)

Description: The objectives of this project are (a) to synthesize new ionic liquids tailored for the extractive separation of Cs + and Sr 2+; (b) to select optimum macrocyclic extractants through studies of complexation of fission products with macrocyclic extractants and transport in new extraction systems based on ionic liquids; (c) to develop efficient processes to recycle ionic liquids and crown ethers; and (d) to investigate chemical stabilities of ionic liquids under strong acid, strong base, and high… more
Date: June 15, 2002
Creator: Luo, Huimin; Bonnesen, Peter V.; Rogers, Robin D.; Dai, Sheng; Buchanan, A. C., III & Hussey, Charles L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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