+ Visit NASA.gov + Contact NASA   + Home Select Search Field * All Report - Patent Number Abstract *Accession Number *NASA Center *Author NameDocument IDKeywordsPublication Date *Title * Find Results With All of the words At least one of the words Enter Search Term  within returned results    Search Tips: Use only the fields with * to search NIX collection. Enclose terms in double quotation marks (") to search for exact phrases, ie: "space shuttle". NOTE: Commas and dashes are removed from search term by search engine. Select Reset Search button to start a new search. See Help for more tips. + NASA Center + Publication Year + Subject + Availability Options + Item/Media Type Selected Navigations: Author > Sohl, G. [x] Sort results by: NASA Center | Date Added to NTRS | Publication Year There are a total of 20 record(s) matching your query. Sorted by: Date Added To NTRS in Descending order 1 2 Next  Ion engine casing construction and method of making same Patent Author(s): Sohl, G. Abstract: Permanently magnetized ion engine casing construction for use in spacecraft propulsion systems NASA Center: NASA (non Center Specific) Publication Year: 1968 Added to NTRS: 2008-01-24 Accession Number: 71N23293; Document ID: 19710013817 Focussing system for an ion source having apertured electrodes Patent Author(s): Sohl, G.; Speiser, R. C. Abstract: Apertured electrode focusing system for ion sources with nonuniform plasma density NASA Center: NASA (non Center Specific) Publication Year: 1967 Added to NTRS: 2008-01-23 Accession Number: 71N10618; Document ID: 19710001144 ROAMS: planetary surface rover simulation environment Author(s): Jain, A.; Guineau, J.; Lim, C.; Lincoln, W.; Pomerantz, M.; Sohl, G.; Steele, R. Abstract: This paper describes the ongoing development of the ROAMS physics-based simulator for planetary surface exploration rover vehicles. NASA Center: Jet Propulsion Laboratory Publication Year: 2003 Added to NTRS: 2006-12-25 Document ID: 20060028642 DSENDS- a high fidelity dynamics and spacecraft simulator for entry, descent, and surface landing Author(s): Balaram, J.; Austin, R.; Banerjee, P.; Bentley, T.; Henriquez, D.; Martin, B.; McMahon, E.; Sohl, G. Abstract: We briefly describe the core tool capabilities in dynamics, instrument/actuator device models, and real-time simulation engineering. NASA Center: Jet Propulsion Laboratory Publication Year: 2002 Added to NTRS: 2006-12-25 Document ID: 20060031953 Ion rocket system research and development Author(s): Reid, G. C.; Sohl, G.; Speiser, R. C. Abstract: Cesium ion rocket propulsion system NASA Center: NASA (non Center Specific) Publication Year: 1964 Added to NTRS: 2006-11-06 Accession Number: 64N25015; Document ID: 19640015101; Report Number: EOS-4920-Q-1, NASA-CR-54025 Electric propulsion for satellite position and attitude control. Author(s): Shattuck, R. D.; Sohl, G.; Toms, R. S. H. Abstract: Electric propulsion applied to satellite stationkeeping and attitude control, noting ion engine resistojet combination providing complete redundancy NASA Center: NASA (non Center Specific) Publication Year: 1967 Added to NTRS: 2006-11-06 Accession Number: 67A38961; Document ID: 19670060232; Report Number: AIAA PAPER 67-722 Cesium electron bombardment ion engines. Author(s): Reid, G.; Sohl, G.; Speiser, R. C. Abstract: Comparison of electromagnet and permanent magnet versions of electron bombardment cesium ion engine NASA Center: NASA (non Center Specific) Publication Year: 1965 Added to NTRS: 2006-11-06 Accession Number: 65A28963; Document ID: 19650046259; Report Number: AIAA PAPER 65-373 Performance of a cesium bombardment ion engine with a self-rectifying discharge and automatic controls. Author(s): Dillon, T. R.; Sohl, G.; Wood, K. G. Abstract: Cesium bombardment ion engine performance, giving starting circuit and automatic discharge power control system NASA Center: NASA (non Center Specific) Publication Year: 1967 Added to NTRS: 2006-11-06 Accession Number: 67A38700; Document ID: 19670059971; Report Number: AIAA PAPER 67-666 Ion rocket system research and development quarterly report, 1 sep. - 30 nov. 1964 Author(s): Reid, G. C.; Sohl, G.; Speiser, R. C. Abstract: Electrode materials and systems engineering tests for electron bombardment cesium ion rocket NASA Center: NASA (non Center Specific) Publication Year: 1964 Added to NTRS: 2006-11-06 Accession Number: 65N14401; Document ID: 19650004800; Report Number: EOS-4920-Q-3, NASA-CR-54027 Automatic control systems for ion engines. Author(s): Forrester, A. T.; Purmal, G. W.; Schneider, A. M.; Sohl, G.; Worlock, R. M. Abstract: Automatic control systems for electron bombardment and contact ion engines NASA Center: NASA (non Center Specific) Publication Year: 1965 Added to NTRS: 2006-11-06 Accession Number: 65A20979; Document ID: 19650038275; Report Number: AIAA PAPER 64-504 1 2 Next  + Back to Top + Sponsored by the NASA Scientific and Technical    Information Program + 2004 Vision for Space Exploration + Freedom of Information Act + NASA Web Privacy Policy and Important Notices + NASA Disclaimers, Copyright Notice,    and Terms and Conditions of Use NASA Official: Calvin Mackey Page Curator: NASA Center for AeroSpace Information (help@sti.nasa.gov) Last Updated: July 5, 2007