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Atoms for space

Description: Nuclear technology offers many advantages in an expanded solar system space exploration program. These cover a range of possible applications such as power for spacecraft, lunar and planetary surfaces, and electric propulsion; rocket propulsion for lunar and Mars vehicles; space radiation protection; water and sewage treatment; space mining; process heat; medical isotopes; and self-luminous systems. In addition, space offers opportunities to perform scientific research and develop systems that … more
Date: October 1, 1990
Creator: Buden, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Classification of alarm processing techniques and human performance issues

Description: Human factors reviews indicate that conventional alarm systems based on the one sensor, one alarm approach, have many human engineering deficiencies, a paramount example being too many alarms during major disturbances. As an effort to resolve these deficiencies, various alarm processing systems have been developed using different techniques. To ensure their contribution to operational safety, the impacts of those systems on operating crew performance should be carefully evaluated. This paper br… more
Date: January 1, 1993
Creator: Kim, I. S. & O'Hara, J. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Development of deep drawn aluminum piston tanks

Description: An aluminum piston tank has been developed for applications requiring lightweight, low cost, low pressure, positive-expulsion liquid storage. The 3 liter (183 in{sup 3}) vessel is made primarily from aluminum sheet, using production forming and joining operations. The development process relied mainly on pressurizing prototype parts and assemblies to failure, as the primary source of decision making information for driving the tank design toward its optimum minimum-mass configuration. Critical … more
Date: June 8, 1990
Creator: Whitehead, J. C.; Bronder, R. L.; Kilgard, L. W.; Evans, M. C.; Ormsby, A. E.; Spears, H. R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Classification of alarm processing techniques and human performance issues

Description: Human factors reviews indicate that conventional alarm systems based on the one sensor, one alarm approach, have many human engineering deficiencies, a paramount example being too many alarms during major disturbances. As an effort to resolve these deficiencies, various alarm processing systems have been developed using different techniques. To ensure their contribution to operational safety, the impacts of those systems on operating crew performance should be carefully evaluated. This paper br… more
Date: May 1, 1993
Creator: Kim, I. S. & O'Hara, J. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Compact heat exchangers for condensation applications: Yesterday, today and tomorrow

Description: Compact heat exchangers are being increasingly considered for condensation applications in the process, cryogenic, aerospace, power and refrigeration industries. In this paper, different configurations available for condensation applications are analyzed and the current state-of-the-knowledge for the design of compact condensers is evaluated. The key technical issues for the design and development of compact heat exchangers for condensation applications are analyzed and major advantages are ide… more
Date: July 1, 1993
Creator: Panchal, C. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Aerospace nuclear safety: An introduction and historical overview

Description: This paper provides an introduction and overview on the topical area of aerospace nuclear safety. Emphasis is on the history of the use of nuclear power sources in space, operational experience with these nuclear sources, a review of previous accidents associated with both U.S. and Russian launches, and the safety issues associated with the entire life cycle of space reactors. There are several potential missions to include near earth orbit, orbit-raising, lunar bases, and propulsion to such so… more
Date: April 1, 1994
Creator: Lee, J. H. & Buden, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Space nuclear power, propulsion, and related technologies.

Description: Sandia National Laboratories (Sandia) is one of the nation's largest research and development (R&D) facilities, with headquarters at Albuquerque, New Mexico; a laboratory at Livermore, California; and a test range near Tonopah, Nevada. Smaller testing facilities are also operated at other locations. Established in 1945, Sandia was operated by the University of California until 1949, when, at the request of President Truman, Sandia Corporation was formed as a subsidiary of Bell Lab's Western… more
Date: January 1, 1992
Creator: Berman, Marshall
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Solvent-free cleaning using a centrifugal cryogenic pellet accelerator

Description: An advanced centrifuge that accelerates frozen CO{sub 2} pellets to high speeds for surface cleaning and paint removal is being developed at the Oak Ridge National Laboratory. The centrifuge-based accelerator was designed, fabricated, and tested under a program sponsored by the Warner Robins Air Logistics Center, Robins Air Force Base, Georgia. In comparison to the more conventional compressed air ``sandblast`` pellet accelerators, the centrifugal accelerator system can achieve higher pellet sp… more
Date: June 1, 1995
Creator: Haines, J. R.; Fisher, P. W. & Foster, C. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A Regularized Galerkin Boundary Element Method (RGBEM) for Simulating Potential Flow About Zero Thickness Bodies

Description: The prediction of potential flow about zero thickness membranes by the boundary element method constitutes an integral component of the Lagrangian vortex-boundary element simulation of flow about parachutes. To this end, the vortex loop (or the panel) method has been used, for some time now, in the aerospace industry with relative success [1, 2]. Vortex loops (with constant circulation) are equivalent to boundary elements with piecewise constant variation of the potential jump. In this case, ex… more
Date: October 1, 1999
Creator: Gharakhani, Adrin & Wolfe, Walter P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: GD FOLO]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5 P.M.
Date: December 20, 1992
Duration: 44 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: LTV Impact PKG]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6 P.M.
Date: January 9, 1992
Duration: 1 minute 53 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: LTV-Shuttle]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6 P.M.
Date: July 8, 1992
Duration: 1 minute 44 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: GD-Lockheed]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering a news story. This story aired at 6pm.
Date: March 17, 1993, 6:00 p.m.
Duration: 41 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: GD-F-16]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering a news story. This story aired at 5pm.
Date: February 12, 1993, 5:00 p.m.
Duration: 1 minute 51 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Lockheed]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering a news story. This story aired at 10pm.
Date: March 17, 1993, 10:00 p.m.
Duration: 40 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Accurate Measure by Weight of Liquids in Industry

Description: This research's focus was to build a prototype of a computerized liquid dispensing system. This liquid metering system is based on the concept of altering the representative volume to account for temperature changes in the liquid to be dispensed. This is actualized by using a measuring tank and a temperature compensating displacement plunger. By constantly monitoring the temperature of the liquid, the plunger can be used to increase or decrease the specified volume to more accurately dispense l… more
Date: December 12, 1992
Creator: Muller, M.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Accurate Measure by Weight of Liquids in Industry. Final Report

Description: This research`s focus was to build a prototype of a computerized liquid dispensing system. This liquid metering system is based on the concept of altering the representative volume to account for temperature changes in the liquid to be dispensed. This is actualized by using a measuring tank and a temperature compensating displacement plunger. By constantly monitoring the temperature of the liquid, the plunger can be used to increase or decrease the specified volume to more accurately dispense l… more
Date: December 12, 1992
Creator: Muller, M. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Plasma spraying of beryllium and beryllium-aluminum-silver alloys

Description: A preliminary investigation on plasma-spraying of beryllium and a beryllium-aluminum 4% silver alloy was done at the Los Alamos National Laboratory`s Beryllium Atomization and Thermal Spray Facility (BATSF). Spherical Be and Be-Al-4%Ag powders, which were produced by centrifugal atomization, were used as feedstock material for plasma-spraying. The spherical morphology of the powders allowed for better feeding of fine (<38 {mu}m) powders into the plasma-spray torch. The difference in the as-depo… more
Date: December 31, 1993
Creator: Castro, R. G.; Stanek, P. W.; Elliott, K. E. & Jacobson, L. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Users manual for Aerospace Nuclear Safety Program six-degree-of-freedom reentry simulation (TMAGRA6C)

Description: This report documents the updated six-degree-of-freedom reentry simulation TMAGRA6C used in the Aerospace Nuclear Safety Program, ANSP. The simulation provides for the inclusion of the effects of ablation on the aerodynamic stability and drag of reentry bodies, specifically the General Purpose Heat Source, GPHS. The existing six-degree-of-freedom reentry body simulations (TMAGRA6A and TMAGRA6B) used in the JHU/APL Nuclear Safety Program do not include aerodynamic effects resulting from geometri… more
Date: February 1, 1990
Creator: Sharbaugh, R. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A water infiltration model: Study of reusability in an environmental engineering problem

Description: The paper describes a computer simulation, involving a site characterization for the storage of low-level radioactive waste at the Nevada Test Site, in order to highlight the reutilization in that project of skills and tools used in aerospace computing.
Date: March 1, 1995
Creator: Cawlfield, D.E.; Lindstrom, F.T. & Miel, G.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Commercialization plan laser-based decoating systems

Description: F2 Associates Inc. (F2) is a small, high-technology firm focused on developing and commercializing environmentally friendly laser ablation systems for industrial-rate removal of surface coatings from metals, concrete, and delicate substrates such as composites. F2 has a contract with the US Department of Energy Federal Energy Technology Center (FETC) to develop and test a laser-based technology for removing contaminated paint and other contaminants from concrete and metal surfaces. Task 4.1 in … more
Date: January 1, 1998
Creator: Freiwald, Joyce & Freiwald, David A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Surface Inspection Machine Infrared (SIMIR). Final CRADA report

Description: This Cooperative Research and Development Agreement was a one year effort to make the surface inspection machine based on diffuse reflectance infrared spectroscopy (Surface Inspection Machine-Infrared, SIMIR), being developed by Surface Optics Corporation, perform to its highest potential as a practical, portable surface inspection machine. The design function of the SIMIR is to inspect metal surfaces for cleanliness (stains). The system is also capable of evaluating graphite-resin systems for … more
Date: February 28, 1997
Creator: Powell, G. L.; Neu, J. T. & Beecroft, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SIAM symposium on control problems in industry

Description: This symposium focused on industrial control applications that have benefited from recent mathematical and technological developments. The themes featured included: applications of control techniques in aerospace industry, automotive industry, environmental sciences, manufacturing processes, and petroleum industry; optimal shape design in aerospace applications; optimal design of micro-optics; robust control and H-infinity methods.
Date: December 31, 1994
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Characteristics of a multicomponent Nb-Ti-Al alloy via industrial-scale practice

Description: Within the spectrum of advanced intermetallic materials, an alloy containing 44Nb-35Ti-6Al-5Cr-8V-1W-0.5Mo-0.3Hf (at. %) was investigated in the industrial-scale produced condition. The alloy was tensile tested in air from room temperature to 1,000 C and in vacuum at 750 and 850 C. Results of this study have shown that the alloy can be commercially produced and has adequate ductility for its secondary processing even at an oxygen level of 1,160 wppm. The alloy has room temperature ductility of … more
Date: May 1, 1997
Creator: Sikka, V.K. & Loria, E.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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