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Matching Records: 414
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Mars Exploration Rovers: 4 Years on Mars
Document ID: 20080047431
NTRS Full-Text: Click to View  [PDF Size: 7.0 MB]
Author: Landis, Geoffrey A.
Abstract: This January, the Mars Exploration Rovers "Spirit" and "Opportunity" are hide
Publication Year: 2008
Document Type: Conference Paper
Date Acquired: Dec 17, 2008
Exploring Venus
Document ID: 20100042392
NTRS Full-Text: Click to View  [PDF Size: 1.9 MB]
Author: Landis, Geoffrey A.
Abstract: With a temperature higher than the inside of your oven and atmospheric pressure equal to that a hide
Publication Year: 2008
Document Type: Oral/Visual Presentation
Report/Patent Number: E-16737
Date Acquired: Dec 22, 2010
Exploring Venus
Document ID: 20090001338
NTRS Full-Text: Click to View  [PDF Size: 1.9 MB]
Author: Landis, Geoffrey A.
Abstract: With a temperature higher than the inside of your oven and atmospheric pressure equal to that a hide
Publication Year: 2008
Document Type: Preprint
Date Acquired: Jan 07, 2009
GaAs Photovoltaics on Polycrystalline Ge Substrates
Document ID: 20090022282
NTRS Full-Text: Click to View  [PDF Size: 711 KB]
Author: Wilt, David M.; Pal, AnnaMaria T.; McNatt, Jeremiah S.; Wolford, David S.; Landis, Geoffrey A.; Smith, Mark A.; Scheiman, David; Jenkins, Phillip P.; McElroy Bruce
Abstract: High efficiency III-V multijunction solar cells deposited on metal foil or even polymer substrates hide
Publication Year: 2007
Document Type: Conference Paper
Date Acquired: Jun 10, 2009
The Solar Spectrum on the Martian Surface and its Effect on Photovoltaic Performance
Document ID: 20070010752
NTRS Full-Text: Click to View  [PDF Size: 253 KB]
Author: Landis, Geoffrey A.; Hyatt, Daniel
Abstract: Solar cells operating on the surface of Mars receive a spectrum of illumination different from the hide
Publication Year: 2007
Document Type: Conference Paper
Date Acquired: Mar 23, 2007
Gap/silicon Tandem Solar Cell with Extended Temperature Range
Document ID: 20070023431
NTRS Full-Text: Click to View  [PDF Size: 1.9 MB]
Author: Landis, Geoffrey A. (Inventor)
Abstract: A two-junction solar cell has a bottom solar cell junction of crystalline silicon, and a top solar hide
Publication Year: 2006
Document Type: Patent
Report/Patent Number: US-Patent-7,148,417, US-Patent-Appl-SN-403714, NASA-Case-LEW-17,396-1
Date Acquired: Aug 03, 2007
Evaluation of Long Duration Flight on Venus
Document ID: 20060056388
NTRS Full-Text: Click to View  [PDF Size: 3.4 MB]
Author: Landis, Geoffrey A.; Colozza, Anthony J.
Abstract: An analysis was performed to evaluate the potential of utilizing either an airship or aircraft as a hide
Publication Year: 2006
Document Type: Technical Report
Report/Patent Number: NASA/TM-2006-214452, E-15716
Date Acquired: Dec 26, 2006
The Solar Spectrum on the Martian Surface and Its Effect on Photovoltaic Performance
Document ID: 20110000777
NTRS Full-Text: Click to View  [PDF Size: 250 KB]
Author: Landis, Geoffrey A.; Hyatt, Dan
Abstract: Solar cells operating on the surface of Mars receive a spectrum of illumination different from the hide
Publication Year: 2006
Document Type: Conference Paper
Report/Patent Number: E-15944
Date Acquired: Jan 11, 2011
The Solar System: Recent Exploration Results
Document ID: 20070010742
NTRS Full-Text: Click to View  [PDF Size: 4.9 MB]
Author: Landis, Geoffrey A.
Abstract: The solar system has been visited by space probes, ranging from the Mariner Mercury-Venus mission hide
Publication Year: 2006
Document Type: Conference Paper
Date Acquired: Mar 23, 2007
Re-Evaluating Satellite Solar Power Systems for Earth
Document ID: 20070005136
NTRS Full-Text: Click to View  [PDF Size: 241 KB]
Author: Landis, Geoffrey A.
Abstract: The Solar Power Satellite System is a concept to collect solar power in space, and then transport it hide
Publication Year: 2006
Document Type: Conference Paper
Date Acquired: Feb 09, 2007
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