SP-100 planetary mission/system preliminary design study. Final report, technical information report (open access)

SP-100 planetary mission/system preliminary design study. Final report, technical information report

This report contains a discussion on many aspects of a nuclear electric propulsion planetary science mission and spacecraft using the proposed SP-100 nuclear power subsystem. A review of the science rationale for such missions is included. A summary of eleven nuclear electric propulsion planetary missions is presented. A conceptual science payload, mission design, and spacecraft design is included for the Saturn Ring Rendezvous mission. Spacecraft and mission costs have been estimated for two potential sequences of nuclear electric propulsion planetary missions. The integration issues and requirements on the proposed SP-100 power subsystems are identified.
Date: February 1, 1986
Creator: Jones, R. M.
Object Type: Report
System: The UNT Digital Library
The Southwestern Historical Quarterly, Volume 18, July 1914 - April, 1915 (open access)

The Southwestern Historical Quarterly, Volume 18, July 1914 - April, 1915

The Texas State Historical Association Quarterly Report includes "Papers read at the meetings of the Association, and such other contributions as may be accepted by the Committee" (volume 1, number 1). These include historical sketches, biographical material, personal accounts, and other research. Index is located at the end of the volume starting on page 427.
Date: 1915
Creator: Texas State Historical Association
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Nuclear electric propulsion for future NASA space science missions (open access)

Nuclear electric propulsion for future NASA space science missions

This study has been made to assess the needs, potential benefits and the applicability of early (circa year 2000) Nuclear Electric Propulsion (NEP) technology in conducting NASA science missions. The study goals are: to obtain the performance characteristics of near term NEP technologies; to measure the performance potential of NEP for important OSSA missions; to compare NEP performance with that of conventional chemical propulsion; to identify key NEP system requirements; to clarify and depict the degree of importance NEP might have in advancing NASA space science goals; and to disseminate the results in a format useful to both NEP users and technology developers. This is a mission performance study and precludes investigations of multitudes of new mission operation and systems design issues attendant in a NEP flight.
Date: July 20, 1993
Creator: Yen, Chen-wan L.
Object Type: Report
System: The UNT Digital Library
The Southwestern Historical Quarterly, Volume 72, July 1968 - April, 1969 (open access)

The Southwestern Historical Quarterly, Volume 72, July 1968 - April, 1969

The Texas State Historical Association Quarterly Report includes "Papers read at the meetings of the Association, and such other contributions as may be accepted by the Committee" (volume 1, number 1). These include historical sketches, biographical material, personal accounts, and other research.
Date: 1969
Creator: Texas State Historical Association
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
New vision solar system mission study. Final report (open access)

New vision solar system mission study. Final report

The vision for the future of the planetary exploration program includes the capability to deliver {open_quotes}constellations{close_quotes} or {open_quotes}fleets{close_quotes} of microspacecraft to a planetary destination. These fleets will act in a coordinated manner to gather science data from a variety of locations on or around the target body, thus providing detailed, global coverage without requiring development of a single large, complex and costly spacecraft. Such constellations of spacecraft, coupled with advanced information processing and visualization techniques and high-rate communications, could provide the basis for development of a {open_quotes}virtual{close_quotes} {open_quotes}presence{close_quotes} in the solar system. A goal could be the near real-time delivery of planetary images and video to a wide variety of users in the general public and the science community. This will be a major step in making the solar system accessible to the public and will help make solar system exploration a part of the human experience on Earth.
Date: March 1, 1996
Creator: Mondt, J. F. & Zubrin, R. M.
Object Type: Report
System: The UNT Digital Library
Civilian and military missions SP-100 preliminary user requirements (open access)

Civilian and military missions SP-100 preliminary user requirements

This document defines the top level requirements of potential users of a space based nuclear electric power supply. This provides the SP-100 Project and information required to design the modular (10-1000 KWe) space power systems to meet the needs of most potential users.
Date: June 29, 1987
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Convairiety, Volume 14, Number 16, August 2, 1961 (open access)

Convairiety, Volume 14, Number 16, August 2, 1961

Bimonthly newsletter published for employees of the Convair Division in Fort Worth containing work-related information, updates about employees, and other news.
Date: August 2, 1961
Creator: General Dynamics Corporation. Convair Division.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
MHD waves detected by ice at distances > 28 x 10/sup 6/ km from Comet Halley: Cometary or solar wind origin (open access)

MHD waves detected by ice at distances > 28 x 10/sup 6/ km from Comet Halley: Cometary or solar wind origin

Spectral analyses of the high resolution magnetic field data are employed to determine if there is evidence of cometary heavy ion pickup when ICE was closest to Halley, approx.28 x 10/sup 6/ km. No evidence is found for the presence of heavy ion cyclotron waves. However, from this search, two new wave modes are discovered in the solar wind: electromagnetic ion cyclotron waves and drift mirror mode waves. Both modes have scales of 10 to 60 s (1 to 6 T/sub p/) in the spacecraft frame. The possibility of wave generation by cometary hydrogen pickup is explored. Theoretical arguments and further experimental evidence indicates that cometary origin is improbable. The most likely source is plasma instabilities associated with solar wind stream-stream interactions. VLF electrostatic emissions are found to occur in field minima or at gradients of the drift mirror structures. Possible generation mechanisms of drift mirror mode waves, cyclotron waves and electrostatic waves are discussed.
Date: January 1, 1986
Creator: Tsurutani, B. T.; Brinca, A. L.; Smith, E. J.; Thorne, R. M.; Scarf, F. L.; Gosling, J. T. et al.
Object Type: Article
System: The UNT Digital Library
[Counter Colón-ialismo, September 27, 1991-May 23, 1993] (open access)

[Counter Colón-ialismo, September 27, 1991-May 23, 1993]

Catalog for the "Counter Colón-ialismo" exhibit including biographies of participating artists, descriptions of the art pieces in the exhibit, and other information about the series.
Date: 1992
Creator: Mexic-Arte Museum (Austin, Tex.)
Object Type: Book
System: The Portal to Texas History
Convairiety, Volume 12, Number 13, June 24, 1959 (open access)

Convairiety, Volume 12, Number 13, June 24, 1959

Bimonthly newsletter published for employees of the Convair Division in Fort Worth containing work-related information, updates about employees, and other news.
Date: June 24, 1959
Creator: General Dynamics Corporation. Convair Division.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History

Mexico, Texas und Californien [Accompanying Text].

Explanation and supporting information related to map that shows geography, political borders, and settlements in the mid-nineteenth century southwest part of North America with locations of German and French colonies in Texas and gold mines in California.
Date: 1847
Creator: Kiepert, Heinrich, 1818-1899
Object Type: Map
System: The Portal to Texas History
Hellcat News, (Fullerton, Calif.), Vol. 57, No. 11, Ed. 1, July 2004 (open access)

Hellcat News, (Fullerton, Calif.), Vol. 57, No. 11, Ed. 1, July 2004

Newsletter published by the 12th Armored Division Association, discussing news related to the activities of the U.S. Army unit and updates on previous members of the division.
Date: July 2004
Creator: Twelfth Armored Division Association (U.S.)
Object Type: Newspaper
System: The Portal to Texas History
Navy Installations - China Lake, CA (open access)

Navy Installations - China Lake, CA

Navy Installations - China Lake, CA. Construction Costs Avoidances Data Call #64. Box 176, L-108.
Date: unknown
Creator: unknown
Object Type: Text
System: The UNT Digital Library
Base Input - NPS Curriculum Answers to Question #3 - Navy Post Graduate School (open access)

Base Input - NPS Curriculum Answers to Question #3 - Navy Post Graduate School

Base Input - NPS Curriculum Answers to Question #3 - Navy Post Graduate School
Date: August 22, 2005
Creator: unknown
Object Type: Text
System: The UNT Digital Library
Naval Air Warfare Center, China Lake, CA - Data Call #13 (open access)

Naval Air Warfare Center, China Lake, CA - Data Call #13

Naval Air Warfare Center, China Lake, CA - Data Call #13. Box 125, L-052.
Date: unknown
Creator: unknown
Object Type: Text
System: The UNT Digital Library
Navy - Air War Center, Technical Centers and Labs, China Lake, CA - Data Call (Part 2 of 2) June 15, 1994 (open access)

Navy - Air War Center, Technical Centers and Labs, China Lake, CA - Data Call (Part 2 of 2) June 15, 1994

Navy - Air War Center, Technical Centers and Labs, China Lake, CA - Data Call (Part 2 of 2) June 15, 1994. Box 175, L-107.
Date: unknown
Creator: unknown
Object Type: Text
System: The UNT Digital Library
An Artist at War: The Journal of John Gaitha Browning (open access)

An Artist at War: The Journal of John Gaitha Browning

An edited version of artist John Gaitha Browning's personal journal from his time in the United States Army during World War II, specifically two years in the South Pacific. The book includes typewritten journal entries, reformatted journal entries, some of his illustrations, photographs, letters he wrote, and maps of where he was stationed. Includes an epilogue about Browning's life after the final entry. Index starts on page 325.
Date: 1994
Creator: Toliver, Oleta Stewart
Object Type: Book
System: The UNT Digital Library
Navy Installations - China Lake, CA (open access)

Navy Installations - China Lake, CA

Navy Installations - China Lake, CA. Special Facilities and Equipment, Facilities/Equipment Capabilities Form. Box 176, L-108.
Date: unknown
Creator: unknown
Object Type: Text
System: The UNT Digital Library