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System Performance Characterization

Description: Characterizing an adaptive optics (AO) system refers to understanding its performance and limitations. The goal of an AO system is to correct wavefront aberrations. The uncorrected aberrations, called the residual errors and referred to in what follows simply as the errors, degrade the image quality in the science camera. Understanding the source of these errors is a great aid in designing an AO system and optimizing its performance. This chapter explains how to estimate the wavefront error ter… more
Date: May 26, 2004
Creator: van Dam, M. A.
Partner: UNT Libraries Government Documents Department
open access

Modelling the Madden Julian Oscillation

Description: The MJO has long been an aspect of the global climate that has provided a tough test for the climate modelling community. Since the 1980s there have been numerous studies of the simulation of the MJO in atmospheric general circulation models (GCMs), ranging from Hayashi and Golder (1986, 1988) and Lau and Lau (1986), through to more recent studies such as Wang and Schlesinger (1999) and Wu et al. (2002). Of course, attempts to reproduce the MJO in climate models have proceeded in parallel with … more
Date: May 21, 2004
Creator: Slingo, J. M.; Inness, P. M. & Sperber, K. R.
Partner: UNT Libraries Government Documents Department
open access

High Pressure Materials Research: Novel Extended Phases of Molecular Triatomics

Description: Application of high pressure significantly alters the interatomic distance and thus the nature of intermolecular interaction, chemical bonding, molecular configuration, crystal structure, and stability of solid [1]. With modern advances in high-pressure technologies [2], it is feasible to achieve a large (often up to a several-fold) compression of lattice, at which condition material can be easily forced into a new physical and chemical configuration [3]. The high-pressure thus offers enhanced … more
Date: May 26, 2004
Creator: Yoo, C.
Partner: UNT Libraries Government Documents Department
open access

Hyperspectral Geobotanical Remote Sensing for CO2 Storage Monitoring

Description: This project's goal is to develop remote sensing methods for early detection and spatial mapping, over whole regions simultaneously, of any surface areas under which there are significant CO2 leaks from deep underground storage formations. If large amounts of CO2 gas percolated up from a storage formation below to within plant root depth of the surface, the CO2 soil concentrations near the surface would become elevated and would affect individual plants and their local plant ecologies. Excessiv… more
Date: May 14, 2004
Creator: Pickles, W & Cover, W
Partner: UNT Libraries Government Documents Department

Oral History Interview with Russell E. Dougherty, May 24, 2004

Description: Interview with Air Force veteran General Russell E. Dougherty, former commander-in-chief of Strategic Air Command. The interview includes Dougherty's personal experiences with General Curtis LeMay. Dougherty speaks about LeMay's uncanny judgment, organizational talents, and penchant for discipline, as well as his handling of people in his command, and the Soviet military's assessment of LeMay. The interview includes an appendix with "A General's Perspective: Leadership in the Cold War," written… more
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: May 24, 2004
Creator: Hurley, Alfred F. & Dougherty, Russell E.
Partner: UNT Oral History Program

Oral History Interview with John T. Chain, May 10, 2004

Description: Interview with Air Force veteran John T. Chain. The interview includes Chain's perspectives as commander of the Strategic Air Command, his comments about leadership, and his personal relationships with General Curtis LeMay.
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: May 10, 2004
Creator: Hurley, Alfred F. & Chain, John T.
Partner: UNT Oral History Program
open access

Geothermal Today: 2003 Geothermal Technologies Program Highlights (Revised)

Description: This outreach publication highlights milestones and accomplishments of the DOE Geothermal Technologies Program for 2003. Included in this publication are discussions of geothermal fundamentals, enhanced geothermal systems, direct-use applications, geothermal potential in Idaho, coating technology, energy conversion R&D, and the GeoPowering the West initiative.
Date: May 1, 2004
Partner: UNT Libraries Government Documents Department
open access

Yang-Mills Fields and the Lattice.

Description: The Yang-Mills theory lies at the heart of our understanding of elementary particle interactions. For the strong nuclear forces, we must understand this theory in the strong coupling regime. The primary technique for this is the lattice. While basically an ultraviolet regulator, the lattice avoids the use of a perturbative expansion. I discuss some of the historical circumstances that drove us to this approach, which has had immense success, convincingly demonstrating quark confinement and obta… more
Date: May 18, 2004
Creator: Creutz, M.
Partner: UNT Libraries Government Documents Department
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