Collection
Office of Scientific & Technical Information Technical Reports
429
Congressional Research Service Reports
129
Defense Base Closure and Realignment Commission
117
Government Accountability Office Reports
66
Texas Attorney General Opinions
46
Texas Patents
46
Technical Report Archive and Image Library
40
TRAIL Microcard Collection
15
Texas State Publications
15
National Advisory Committee for Aeronautics Collection
12
8 More
Country
States
Decade
Month
Day
Language
901 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
901
next
APPLICATIONS OF SNAP REACTOR SYSTEMS TO COMMUNICATIONS SATELLITES
Methods are presented for determining the electric power requirements of a given communications mission in terms of mission and orbit parameters. Analyses were made of possible applications of available and projected space auxiliary power units in these satellites. The satellitc as a communication node is discussed. Example calculations are given. (M.C.G.)
Date:
July 30, 1962
Creator:
Wimmer, R.E.
Object Type:
Report
System:
The UNT Digital Library
High resolution difference schemes for compressible gas dynamics
The advantages and disadvantages of four new high-resolution difference schemes, namely the von Neumann-Richtmyer, Godunovs, MUSCL and Glimms, for mathematically representing physical conditions in compressible gas flows are compared. (LCL)
Date:
July 30, 1980
Creator:
Woodward, P. & Colella, P.
Object Type:
Article
System:
The UNT Digital Library
Future engineering needs of mirror fusion reactors
Fusion research has matured during the last decade and significant insight into the future program needs has emerged. While some will properly note that the crystal ball is cloudy, it is equally important to note that the shape and outline of our course is discernable. In this short summary paper, I will draw upon the National Mirror Program Plan for mirror projects and on available design studies of these projects to put the specific needs of the mirror program in perspective.
Date:
July 30, 1982
Creator:
Thomassen, K.I.
Object Type:
Article
System:
The UNT Digital Library
Savannah River Site computing architecture migration guide
The SRS Computing Architecture is a vision statement for site computing which enumerates the strategies which will guide SRS computing efforts for the 1990s. Each strategy is supported by a number of feature statements which clarify the strategy by providing additional detail. Since it is a strategic planning document, the Architecture has sitewide applicability and endorsement but does not attempt to specify implementation details. It does, however, specify that a document will be developed to guide the migration from the current site environment to that envisioned by the new architecture. The goal of this document, the SRS Computing Architecture Migration Guide, is to identify specific strategic and tactical tasks which would have to be completed to fully implement the architectural vision for site computing as well as a recommended sequence and timeframe for addressing these tasks. It takes into account the expected availability of technology, the existing installed base, and interdependencies among architectural components and objectives.
Date:
July 30, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Model validation and sensitivity analysis of solar collector loops. Final technical report
The experimental solar collector systems at Middlebury College have been modified to permit short time resolution studies of solar collector loop performance. A variety of experiments have been performed to measure the following system properties: (a) collector efficiency, (b) collector response to step changes in insolation, (c) collector response to the introduction of cold inlet water, and (d) pump cycling as a function of control sensor location and set points. Data from these experiments have been supplied to the solar group at Drexel for validation of their analytical collector loop model.
Date:
July 30, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
D7H-test results
Data were reduced from the voltage-time relations stored in files D7H001 to D7H090 on HP1000. The I-B calibration curve is included. The data base is shown and can be used by the 9845B. The data include the quench location, Q/sub 2/ layer 1 top, Q/sub 3/ layer 1 bottom and the quench current and its normalized value with respect to short sample, I/sub c/ = 4920A at 4.4 K, I/sub c/ = 6710 A at 1.8 K. The resistance (..cap omega../cm) was calculated using the propagation time according to the voltage change across the measured sections. The conductor potential length are L/sub 5/ /sub 9/ = 48.6 cm, L/sub 6/ /sub 10/ = 17.9 cm, L/sub 7/ /sub 11/ = 40.6 cm. The turn to turn velocity V/sub t/ was calculated dividing the nominal turn to turn distance (58 mil) by the propagation time (Trans. Time). The quench time T/sub q/ was measured from the time the resistive rise starts until the energy extraction system fires.
Date:
July 30, 1982
Creator:
Caspi, S.
Object Type:
Report
System:
The UNT Digital Library
Double-mode pulsation
Double mode pulsation is a very pervasive phenomenon in stars all over the Hertzsprung-Russell diagram. In order of increasing radius, examples are: ZZ Ceti stars, the sun, the delta Scuti stars, RR Lyrae variables, the ..beta.. Cephei variables and those related to them, Cepheids, and maybe even the Mira stars. These many modes have been interpreted as both radial and nonradial modes, but in many cases the actual mode has not been clearly identified. Yellow giants seem to be the most simple pulsators with a large majority of the RR Lyrae variables and Cepheids showing only one pulsation period. We limit this review to those very few cases for classical Cepheids and RR Lyrae variables which display two modes. For these we know many facts about these stars, but the actual cause of the pulsation in two modes simultaneously remains unknown.
Date:
July 30, 1982
Creator:
Cox, A. N.
Object Type:
Article
System:
The UNT Digital Library
Study on reduction of accessory horsepower requirements. Fourth quarterly progress report
The program objective is to evolve and define an accessory drive system that will minimize system power consumption of driven accessories on an internal combustion engine in a passenger automobile. The initial three program phases established concept feasibility, determined potential fuel savings, and selected a drive system design for concept mechanization. During this quarter the major program accomplishments were: selection of candidate belt-drive concepts; completion of Phase III baseline vehicle drive systems physical and operational envelopes; completion of analysis for a mechanically controlled direct-operated belt drive with input programming; and completion of design layout and analysis for a hydromechanically controlled, servo-operated belt drive with output-speed sensing. (LLL)
Date:
July 30, 1975
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Geothermal development and land use/energy planning by the State of California and its political subdivisions
California law contains several vehicles for the implementation of geothermal planning. These mechanisms and their impact are examined. First, at the State level upon the California Energy Commission and the Division of Oil and Gas in the Department of Conservation. After some background on county planning in California, the unique situation in the counties of greatest geothermal potential is presented: Imperial County and the four Geysers counties as well as their joint powers agency. Conclusions and recommendations are included. (MHR)
Date:
July 30, 1978
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Investigation of the cryogenic mechanical properties of low thermal-expansion superalloys
Four Fe-based superalloys, JBK-75, Incoloy 903, Incoloy 905, and Incoloy 909 were evaluated as tube materials for ICCS Nb/sub 3/Sn superconductors. Evaluation consisted of 4-K tensile and elastic-plastic fracture-toughness testing, and a microstructural characterization of unwelded and autogenously gas-tungsten-arc welded sheet given a simulated postweld processing treatment of 15% cold reduction by rolling followed by a Nb/sub 3/Sn-reaction heat treatment of 96 hours at 700/sup 0/C plus 48 hours at 730/sup 0/C. Results indicate that JBK-75 and Incoloy 903 showed satisfactory combinations of strength and toughness for ICCS tube use requiring long Nb/sub 3/Sn-reaction heat treatments. Incoloy 905 welds and 909 showed unacceptable fracture toughness. Results are discussed in terms of microstructural changes caused by the extended Nb/sub 3/Sn-reaction heat treatment.
Date:
July 30, 1985
Creator:
Summers, L.T. & Dalder, E.N.C.
Object Type:
Article
System:
The UNT Digital Library
Polarizability corrections in stimulated Raman propagation
Traditional descriptions of stimulated Raman scattering relate the various Stokes and anti-Stokes fields to the incident pump field by means of a polarizability (tensor). This description is usable for pulsed radiation but it fails when the pump carrier frequency coincides with a resonant frequency of the medium. We here describe a simple procedure for correcting the traditional polarizability approximation for pulse envelopes so as to account for effects of finite pump bandwidth. The correction amounts to the introduction of an auxiliary field envelope that incorporates pump dispersion. We apply this procedure to the equations for a degenerate, Doppler broadened ensemble of three-level atoms, in which the uppermost (virtual) level is close to resonance with the pump carrier frequency. This system becomes a two-level Raman system, but with a correction to the Raman Hamiltonian and the propagation equation. The plane-wave propagation equations presented include dispersive as well as Raman effects, and allow arbitrary combinations of field polarizations. We comment on several incidental aspects of Raman propagation, including dynamic Stark shifts, sublevel averages and fluence equations.
Date:
July 30, 1991
Creator:
Shore, B. W.; Johnson, M. A. & Lowder, S.
Object Type:
Report
System:
The UNT Digital Library
Coal surface control for advanced fine coal flotation
The primary objective in the scope of this research project is to develop advanced flotation methods for coal cleaning in order to achieve near total pyritic-sulfur removal at 90% Btu recovery, using coal samples procured from three major US coal seams. Concomitantly, the ash content of these coals is to be reduced to 6% or less. Investigation of mechanisms for the control of coal and pyrite surfaces prior to fine coal flotation is the main aspect of the project objectives. The results of this research are to be made available to ICF Kaiser Engineers who are currently working on the Engineering Development of Advanced Flotation under a separate contract with DOE under the Acid Rain Control Initiative program. A second major objective is to investigate factors involved in the progressive weathering and oxidation of coal that had been exposed to varying degrees of weathering, namely, open to the atmosphere, covered and in an argon-inerted'' atmosphere, over a period of twelve months. After regular intervals of weathering, samples of the three base coals (Illinois No. 6, Pittsburgh No. 8 and Upper Freeport PA) were collected and shipped to both the University of Pittsburgh and the University of California at Berkeley for …
Date:
July 30, 1991
Creator:
Fuerstenau, D. W.; Sastry, K. V. S.; Hanson, J. S.; Diao, J.; De, A.; Sotillo, F. et al.
Object Type:
Report
System:
The UNT Digital Library
Drug Testing and Crime-Related Restrictions in TANF, SNAP, and Housing Assistance
This report describes and compares the drug- and crime-related policy restrictions contained in selected federal programs that provide assistance to low-income individuals and families: the Temporary Assistance for Needy Families (TANF) block grant, the Supplemental Nutrition Assistance Program (SNAP, formerly Food Stamps), and the three primary federal housing assistance programs (the public housing program, the Section 8 Housing Choice Voucher program, and the project-based Section 8 rental assistance program).
Date:
July 30, 2013
Creator:
McCarty, Maggie; Aussenberg, Randy Alison; Falk, Gene & Carpenter, David H.
Object Type:
Report
System:
The UNT Digital Library
Military Sexual Assault: Chronology of Activity in Congress and Related Resources
Report that focuses on activity in Congress regarding recent high profile incidents of sexual assault in the military. Included are separate sections on the official responses related to these incidents by the Department of Defense (DOD), the Administration, and Congress including legislation in the 113th Congress. The last section is a resource guide for sources in this report and related materials on sexual assault and prevention.
Date:
July 30, 2013
Creator:
Torreon, Barbara Salazar
Object Type:
Report
System:
The UNT Digital Library
Ocean Acidification
Report that discusses the increasing concentrations of carbon dioxide (CO2) in the atmosphere, and the extent of related effects on the ocean and marine resources.
Date:
July 30, 2013
Creator:
Upton, Harold F. & Folger, Peter
Object Type:
Report
System:
The UNT Digital Library
Letter from Darold L. Bennett in response to the recommendation regarding Great Falls International Airport Air Guard Station
Community Correspondence - Letter from Darold L. Bennett in response to the recommendation regarding Great Falls International Airport Air Guard Station
Date:
July 30, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
Letter from a concerned citizen in response to the recommendation regarding Grand Forks AFB
Community Correspondence - Letter from a concerned citizen in response to the recommendation regarding Grand Forks AFB
Date:
July 30, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
Letter from Willow Phillips in response to the recommendation regarding the Hawthorne Army Depot
Community Correspondence - Letter from Willow Phillips in response to the recommendation regarding the Hawthorne Army Depot
Date:
July 30, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
20 Letters from concerned citizens in response to the recommendation regarding Wright Patterson Air Force Base
Community Correspondence - 20 Letters from concerned citizens in response to the recommendation regarding Wright Patterson Air Force Base
Date:
July 30, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
Early Bird - 30 July 2005
Collection of BRAC related news articles and clippings. Produced for Commission staff review.
Date:
July 30, 2005
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
2 Letters from concerned citizens in response to the recommendation regarding the Defense Office of Hearings and Appeals in Fort Meade
Community Correspondence - 2 Letters from concerned citizens in response to the recommendation regarding the Defense Office of Hearings and Appeals in Fort Meade
Date:
July 30, 2005
Creator:
unknown
Object Type:
Legal Document
System:
The UNT Digital Library
Letter from a concerned citizen in response to the closing of Grissom AFB
Commmunity Correspondence - Letter from a concerned citizen in response to the closing of Grissom AFB
Date:
July 30, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
Letter from a concerned citizen in response to the recommendation regarding 179th AW Mansfield, Ohio
Community Correspondence - Letter from a concerned citizen in response to the recommendation regarding 179th AW Mansfield, Ohio
Date:
July 30, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
Executive Correspondence – Letter dtd 07/26/2005 to Chairman Principi from Aris Melissaratos
Executive Correspondence – Letter dtd 07/26/2005 to Chairman Principi from Aris Melissaratos, Secretary of the Maryland Dept. of Business & Economic Development, reflecting actions accomplished in coordination with our Congressional delegation and local officials regarding Army Communications-Electronic Command functions to Aberdeen Proving Ground.
Date:
July 30, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library