+ 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 > Hapke, B. W. [x] Sort results by: NASA Center | Date Added to NTRS | Publication Year There are a total of 38 record(s) matching your query. Sorted by: Date Added To NTRS in Descending order Prev 1 2 3 4 Next  Packing properties of fine powders and the depth of the lunar dust layer Author(s): Hapke, B. W. Abstract: Packing properties of fine powders and depth of lunar dust layer NASA Center: NASA (non Center Specific) Publication Year: 1964 Added to NTRS: 2006-11-06 Accession Number: 64N18497; Document ID: 19640008583 A theoretical photometric function for the lunar surface Author(s): Hapke, B. W. Abstract: Photometric functions & properties of lunar surface NASA Center: NASA (non Center Specific) Publication Year: 1963 Added to NTRS: 2006-11-06 Accession Number: 64N22063; Document ID: 19640012149 A comparison of the infrared spectra of the moon and simulated lunar surface materials. Author(s): Hapke, B. W.; Wattson, R. B. Abstract: Reflection spectra of rock powders compared with Stratoscope II spectrum of Mare Tranquilitatis NASA Center: NASA (non Center Specific) Publication Year: 1966 Added to NTRS: 2006-11-06 Accession Number: 66A28126; Document ID: 19660048836 Preliminary report on experiments relating to the lunar surface Author(s): Hapke, B. W. Abstract: No Abstract Available NASA Center: NASA (non Center Specific) Publication Year: 1961 Added to NTRS: 2006-11-06 Accession Number: 66N85332; Document ID: 19660085845; Report Number: NASA-CR-76154 SECOND PRELIMINARY REPORT ON EXPERIMENTS RELATING TO THE LUNAR SURFACE- 1. PHOTOMETRIC STUDIES. 2. PROTON BOMBARDMENT OF MINERALS Author(s): Hapke, B. W. Abstract: Experiments relating to the lunar surface - photometry - proton bombardment of minerals NASA Center: NASA (non Center Specific) Publication Year: 1962 Added to NTRS: 2006-11-06 Accession Number: 62N14775; Document ID: 19620004775; Report Number: CRSR-127 A THEORETICAL PHOTOMETRIC FUNCTION FOR THE LUNAR SURFACE Author(s): Hapke, B. W. Abstract: Photometric properties of the lunar surface derived theoretically - functions for differential and integral brightness NASA Center: NASA (non Center Specific) Publication Year: 1963 Added to NTRS: 2006-11-06 Accession Number: 63N15936; Document ID: 19630006060; Report Number: CRSR-138 An Improved Instrument for Investigating Planetary Regolith Microstructure Author(s): Nelson, R. M.; Hapke, B. W.; Smythe, W. D.; Manatt, K. S.; Eddy, J. Abstract: The Opposition Effect (OE) is the non-linear increase in the intensity of light scattered from a surface as phase angle approaches 0 deg. It is seen in laboratory experiments and in remote sensing observations of planetary ... NASA Center: Jet Propulsion Laboratory Publication Year: 2005 Added to NTRS: 2005-08-25 Document ID: 20050172163 Cassini VIMS Preliminary Exploration of Titan's Surface Hemispheric Albedo Dichotomy Author(s): Nelson, R. M.; Brown, R. H.; Hapke, B. W.; Smythe, W. D.; Kamp, L.; Boryta, M.; Baines, K. H.; Bellucci, G.; Bibring, J.-P.; Buratti, B. J. Abstract: We present preliminary evidence that suggests a hemispheric albedo dichotomy on Titan, the largest planetary satellite in the Solar System. We have also studied the photometric properties of several dark circular features on ... NASA Center: Jet Propulsion Laboratory Publication Year: 2005 Added to NTRS: 2005-08-25 Document ID: 20050172162 Planetary Regolith Microstructure: An Unexpected Opposition Effect Result Author(s): Nelson, R. M.; Hapke, B. W.; Smythe, W. D.; Hale, A. S.; Piatek, J. L. Abstract: The Opposition Effect (OE) is the non-linear increase in the intensity of light scattered from a surface as phase angle approaches 0 deg. It is seen in laboratory experiments and in remote sensing observations of planetary ... NASA Center: Jet Propulsion Laboratory Publication Year: 2004 Added to NTRS: 2004-11-03 Document ID: 20040062367 A Study of the Opposition Phase Curve in Low Albedo Media Author(s): Nelson, R. M.; Hapke, B. W.; Smythe, W. D.; Hale, A. S.; Piatek, J. L. Abstract: The Opposition Effect, the pronounced non-linear intensity increase in the reflectance phase curve with decreasing phase angle,theta , has long been observed in solar system bodies and in laboratory investigations of the ... NASA Center: Jet Propulsion Laboratory Publication Year: 2003 Added to NTRS: 2004-11-03 Document ID: 20030111128 Prev 1 2 3 4 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