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Commercial Aviation: Financial Condition and Industry Responses Affect Competition

Description: Testimony issued by the General Accounting Office with an abstract that begins "This testimony discusses the economic state of the airline industry. Many, but not all, major U.S. passenger airlines are experiencing their second consecutive year of record financial losses. In 2001, the U.S. commercial passenger airline industry reported losses in excess of $6 billion. For 2002, some Wall Street analysts recently projected that U.S. airline industry losses will approach $7 billion, and noted that… more
Date: October 2, 2002
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

RHIC AND THE SEARCH FOR HIGH ENERGY DENSITY MATTER.

Description: The major goal of the RHIC experimental program at Brookhaven National Laboratory is to make and study the Quark Gluon Plasma. Another new form of matter, the Color Glass Condensate may be formed in these collisions. The recent results from RHIC are reviewed in this context.
Date: October 2, 2002
Creator: McLerran, L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Reducing Plasma Perturbations with Segmented Metal Shielding on Electrostatic Probes

Description: Electrostatic probes are widely used to measure spatial plasma parameters in the quasi-neutral plasma created in Hall thrusters and similar E x B electric discharge devices. Significant perturbations of the plasma, induced by such probes, can mask the actual physics involved in operation of these devices. In an attempt to reduce these perturbations in Hall thrusters, the perturbations were examined by varying the component material, penetration distance, and residence time of various probe desi… more
Date: October 2, 2002
Creator: Staack, D.; Raitses, Y. & N.J., Fisch
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cooling water systems for accelerator components at the Advanced Photon Source.

Description: As in most accelerators at the Advanced Photon Source, water is the media of choice for absorbing heat generated by a multitude of accelerator components. A large cooling water distribution system with flow rate of nearly 10,000 gpm in the primary circuit and small closed-loop water systems with flow rates of less than 100 gpm are installed at the APS. The central plant houses primary water distribution pumps, heat rejection equipment, and polishing and make-up systems. All water used for heat … more
Date: October 2, 2002
Creator: Swetin, E.; Kirshenbaum, M. & Putnam, C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Calculation of Pourbaix Diagrams for C22 in Various Well Water Chemistries

Description: Design and Fabrication of the Waste Package for the Yucca Mountain Waste Package represents a formidable challenge of the total knowledge that exists today concerning the properties of a wide variety of materials systems. During the past few years considerable successes have been achieved by employing the techniques of the new ''Computational Thermodynamics'' CT[1 ] to address some of the most critical problems of phase stability with substantial success. In particular, phase stability in Alloy… more
Date: October 2, 2002
Creator: Kaufman, L
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High-Performance Laser Peening for Effective Mitigation of Stress Corrosion Cracking

Description: Stress corrosion cracking (SCC) in the Yucca Mountain waste package closure welds is believed to be the greatest threat to long-term containment. Use of stress mitigation to eliminate tensile stresses resulting from welding can prevent SCC. A laser technology with sufficient average power to achieve high throughput has been developed and commercially deployed with high peak power and sufficiently high average power to be an effective laser peening system. An appropriately applied version of thi… more
Date: October 2, 2002
Creator: Hackel, L.; Hao-Lin, C.; Wong, F. & Hill, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Duct Retrofit Strategy to Complement a Modulating Furnace.

Description: Some recent work (Walker 2001, Andrews 2002) has indicated that installing a modulating furnace in a conventional duct system may, in many cases, result in a significant degradation in thermal distribution efficiency. The fundamental mechanism was pointed out nearly two decades ago (Andrews and Krajewski 1985). The problem occurs in duct systems that are less-than-perfectly insulated (e.g., R-4 duct wrap) and are located outside the conditioned space. It stems from the fact that when the airflo… more
Date: October 2, 2002
Creator: Andrews, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

On the feasibility to investigate point defects by advanced electron microscopy

Description: Transmission Electron Microscopy evolves rapidly as a primary tool to investigate nano structures on a truly atomic level. Its resolution reaches into the sub Angstrom region by now. Together with a better correction of lens aberrations, sensitivities are drastically enhanced. Utilizing advanced electron microscopes, it is feasible to promote experiments that aim to detect single atoms. This enables local investigations of non-stoichiometry. This paper reviews the current state-of-the-art.
Date: October 2, 2002
Creator: Kisielowski, C. & Jinschek, J. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Annual Technical Progress Report

Description: This report describes the results generated during phase 1 of this project. During this phase, the main tools that are used to compute the thermal neutron scattering kernels for graphite, beryllium, beryllium oxide, zirconium hydride, light water, polyethylene were implemented and tested. This includes a modified NJOY/LEAPR code system, the GASKET code, and the ab initio condensed matter codes VASP and PHONON. Thermal neutron scattering kernels were generated for graphite, beryllium, beryllium … more
Date: October 2, 2002
Creator: Hawari, Ayman I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Time-resolved measurement of a self-amplified free-electron laser.

Description: We report on a time-resolved measurement of self-amplified spontaneous emission (SASE) free-electron laser (FEL) pulses. We observed that the spikes in the output of such free-electron laser pulses have an intrinsic positive chirp and the energy chirp in the electron bunch mapped directly into the FEL output. The measurement also provides rich information on the statistics of the FEL output.
Date: October 2, 2002
Creator: Li, Y.; Lewellen, J.; Huang, Z.; Sajaev, V. & Milton, S. V.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Microwave radar detection of gas pipeline leaks.

Description: We are developing a microwave radar sensing and imaging system to detect and locate gas leaks in natural gas pipelines. The underlying detection principle is radar backscattering from the index-of-refraction inhomogeneities introduced by the dispersion of methane in air. An essential first step in the development effort is modeling to estimate the radar cross section. This paper describes the modeling results and the experimental efforts underway to validate the model. For the case of leaks fro… more
Date: October 2, 2002
Creator: Gopalsami, N.; Kanareykin, D. B.; Asanov, V. D; Bakhtiari, S. & Raptis, A. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Defense Acquisition Reform: Status and Current Issues

Description: The end of the Cold War and its impact on defense spending has created a strong need to reform Department of Defense’s (DOD) acquisition system. With procurement spending down, DOD expects to depend on savings from acquisition reform to help finance future force modernization. Policymakers believe that DOD should use more commercial products because, in many instances, they cost less and their quality is comparable to products built according to DOD military specifications. Many such reform pro… more
Date: October 2, 2002
Creator: Grasso, Valerie Bailey
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Digital Television: An Overview

Description: Digital television (DTV) is a new television service representing the most significant development in television technology since the advent of color television in the 1950s. DTV can provide sharper pictures, a wider screen, CD-quality sound, better color rendition, and other new services currently being developed. A successful deployment of DTV requires: the development by content providers of compelling digital programming; the delivery of digital signals to consumers by broadcast television … more
Date: October 2, 2002
Creator: Kruger, Lennard G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Export-Import Bank: Background and Legislative Issues

Description: This report discusses the Export-Import Bank (Ex-In Bank), the chief U.S. government agency that helps finance American exports of manufactured goods and services with the objective of contributing to the employment of U.S. workers.
Date: October 2, 2002
Creator: Jackson, James K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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