Zobrazeno 1 - 10
of 10
pro vyhledávání: '"George H. Purcell"'
Autor:
Carl R. Seubert, Stefan Martin, Martin Charles Noecker, Zahidul H. Rahman, Daniel P. Scharf, George H. Purcell, Carl Christian Liebe
Publikováno v:
Acta Astronautica. 123:420-434
Starshade missions offer a near-term capability to measure the spectra of Earth-sized exoplanets, searching for possible bio-indicators. To function, a starshade and telescope separated by approximately 50 Mm must align to the meter-level on the line
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab0dad65de8d61a06c295dc1abe30ee3
https://doi.org/10.1016/j.actaastro.2015.12.044
https://doi.org/10.1016/j.actaastro.2015.12.044
Autor:
John A. Hildebrand, Larry Young, Fred N. Spiess, Herb Dragert, C. David Chadwell, George H. Purcell
Publikováno v:
Physics of the Earth and Planetary Interiors. 108:101-112
Global networks for crustal strain measurement provide important constraints for studies of tectonic plate motion and deformation. To date, crustal strain measurements have been possible only in terrestrial settings: on continental plates and island
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75a6e5b6220f236b55156a13e4873bee
https://doi.org/10.1016/s0031-9201(98)00089-2
https://doi.org/10.1016/s0031-9201(98)00089-2
Autor:
F. G. Goncalves, Bruce Chapman, J.R. dos Santos, Robert N. Treuhaft, Jason B. Drake, Paulo Maurício Lima de Alencastro Graça, Luciano Vieira Dutra, George H. Purcell
Publikováno v:
Geophysical Research Letters. 37
[1] Tropical forest biomass estimation based on the structure of the canopy is a burgeoning and crucial remote sensing capability for balancing terrestrial carbon budgets. This paper introduces a new approach to structural biomass estimation based on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67aa50faa1b6a53f3309805e2c73dd01
https://doi.org/10.1029/2010gl045608
https://doi.org/10.1029/2010gl045608
Autor:
Oliver P. Lay, Stefan Martin, L. Scherr, J.R. Smith, L. Wayne, Richard E. Wirz, B. Mennesson, D. McKinstry, George H. Purcell, Daniel P. Scharf, Jose I. Rodriguez
Publikováno v:
2008 IEEE Aerospace Conference.
The characterization of earth like planets that may be orbiting nearby stars will require large observatories capable of detecting a small number of planet photons and separating them from the much larger flux from the parent star. One approach to th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8712018965e40c5e17a4a0bab132b39f
https://doi.org/10.1109/aero.2008.4526410
https://doi.org/10.1109/aero.2008.4526410
Autor:
Larry Young, George H. Born, Christian Rocken, Thomas M. Kelecy, George H. Purcell, Susan Kornreich Wolf
Publikováno v:
Geophysical Research Letters. 17:2145-2148
The feasibility of using the Global Positioning System (GPS) for accurate sea surface positioning was examined. An experiment was conducted on the Scripps pier at La Jolla, California from December 13-15, 1989. A GPS-equipped buoy was deployed about
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7c076dba8fcbce05b57224833edf2c6
https://doi.org/10.1029/gl017i012p02145
https://doi.org/10.1029/gl017i012p02145
Autor:
Julie A. Wertz, George H. Purcell, Louise A. Hamlin, M. Charley Noecker, Oliver P. Lay, Brent Ware, Steven M. Gunter, Stefan Martin, Ying-Yong Li, Curt Henry
Publikováno v:
Techniques and Instrumentation for Detection of Exoplanets II.
The Terrestrial Planet Finder Interferometer (TPF-I) is a space-based NASA mission for the direct detection of Earth-like planets orbiting nearby stars. At the mid-infrared wavelength range of interest, a sun-like star is ~10 7 times brighter than an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84f2ab457893f4450c1d1f3e4f01926d
https://doi.org/10.1117/12.618136
https://doi.org/10.1117/12.618136
Publikováno v:
2004 IEEE Aerospace Conference Proceedings (IEEE Cat. No.04TH8720).
The Terrestrial Planet Finder (TPF) pre-project, an element of NASA's Origins program, is currently investigating multiple implementation architectures for finding Earth-like planets around other stars. One of the technologies being developed is the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f33ee54ef77950424bfb6a37e9b36200
https://doi.org/10.1109/aero.2004.1368063
https://doi.org/10.1109/aero.2004.1368063
Autor:
Jeffrey M. Srinivasan, Jeffrey Y. Tien, E.D. Archer, L.R. Amaro, Lawrence E. Young, George H. Purcell, Yong Chong, A.M. Vozoff, MiMi Aung
Publikováno v:
2003 IEEE Aerospace Conference Proceedings (Cat. No.03TH8652).
A Radio Frequency (RF) based sensor, called the Autonomous Formation Flying (AFF) sensor, has been developed to enable deep space precision formation flying by measuring the relative range and bearing angles between multiple spacecraft. The AFF senso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e8b7f5a668adc7bd871ab1766f1587f
https://doi.org/10.1109/aero.2003.1235048
https://doi.org/10.1109/aero.2003.1235048
Autor:
Courtney Duncan, Jess B. Thomas, Lawrence E. Young, Jeffrey M. Srinivasan, Timothy N. Munson, Thomas K. Meehan, George H. Purcell
Publikováno v:
Deep Sea Research Part B. Oceanographic Literature Review. 38:804
This is a system for measuring ocean surface currents from an airborne platform. A radar system having two spaced antennas wherein one antenna is driven and return signals from the ocean surface are detected by both antennas is employed to get raw oc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c66cdf7d509ff84fc620a618469da1d
https://doi.org/10.1016/s0198-0254(09)90061-9
https://doi.org/10.1016/s0198-0254(09)90061-9
Conference
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.