Zobrazeno 1 - 10
of 152
pro vyhledávání: '"David Wettergreen"'
Autor:
Nancy W. Hinman, Michael H. Hofmann, Kimberly Warren-Rhodes, Michael S. Phillips, Nora Noffke, Nathalie A. Cabrol, Guillermo Chong Diaz, Cecilia Demergasso, Cinthya Tebes-Cayo, Oscar Cabestrero, Janice L. Bishop, Virginia C. Gulick, David Summers, Pablo Sobron, Michael McInenly, Jeffrey Moersch, Constanza Rodriguez, Philippe Sarazzin, Kevin L. Rhodes, Camila Javiera Riffo Contreras, David Wettergreen, Victor Parro
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 8 (2022)
Salar de Pajonales, a Ca-sulfate salt flat in the Chilean High Andes, showcases the type of polyextreme environment recognized as one of the best terrestrial analogs for early Mars because of its aridity, high solar irradiance, salinity, and oxidatio
Externí odkaz:
https://doaj.org/article/2898d5eb096742f9b0d09d097b6e66ae
Autor:
Alberto Candela, Kevin Edelson, Michelle M. Gierach, David R. Thompson, Gail Woodward, David Wettergreen
Publikováno v:
Frontiers in Marine Science, Vol 8 (2021)
Coral reefs are of undeniable importance to the environment, yet little is known of them on a global scale. Assessments rely on laborious, local in-water surveys. In recent years remote sensing has been useful on larger scales for certain aspects of
Externí odkaz:
https://doaj.org/article/06aa5437453344dfb5411644ad9b33a2
Autor:
Kimberley A. Warren-Rhodes, Kevin C. Lee, Stephen D. J. Archer, Nathalie Cabrol, Linda Ng-Boyle, David Wettergreen, Kris Zacny, Stephen B. Pointing, NASA Life in the Atacama Project Team
Publikováno v:
Frontiers in Microbiology, Vol 10 (2019)
Externí odkaz:
https://doaj.org/article/d02210f12c9a436690f5320e7a15cb22
Autor:
Miguel Ángel Fernández-Martínez, Rita dos Santos Severino, Mercedes Moreno-Paz, Ignacio Gallardo-Carreño, Yolanda Blanco, Kimberley Warren-Rhodes, Miriam García-Villadangos, Marta Ruiz-Bermejo, Albert Barberán, David Wettergreen, Nathalie Cabrol, Víctor Parro
Publikováno v:
Frontiers in Microbiology, Vol 10 (2019)
The Atacama Desert, the oldest and driest desert on Earth, displays significant rains only once per decade. To investigate how microbial communities take advantage of these sporadic wet events, we carried out a geomicrobiological study a few days aft
Externí odkaz:
https://doaj.org/article/da989b9e26ca4096bf3e8412e6b92b88
Autor:
Kimberley A. Warren-Rhodes, Kevin C. Lee, Stephen D. J. Archer, Nathalie Cabrol, Linda Ng-Boyle, David Wettergreen, Kris Zacny, Stephen B. Pointing, The NASA Life in the Atacama Project Team
Publikováno v:
Frontiers in Microbiology, Vol 10 (2019)
Sediments in the hyper-arid core of the Atacama Desert are a terrestrial analog to Mars regolith. Understanding the distribution and drivers of microbial life in the sediment may give critical clues on how to search for biosignatures on Mars. Here, w
Externí odkaz:
https://doaj.org/article/74309062bf6a429cb9b00b3da5773f00
Autor:
Alberto Candela, David Wettergreen
Publikováno v:
IEEE Robotics and Automation Letters. 7:9691-9698
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e702a7d8e94a72ed055adc53f0f86e6a
https://doi.org/10.1109/lra.2022.3191949
https://doi.org/10.1109/lra.2022.3191949
Autor:
David R. Thompson, David Wettergreen, Alberto Candela, Sven Geier, Michael L. Eastwood, Robert O. Green, Kerry Cawse-Nicholson
Publikováno v:
AAAI
Earth and planetary sciences often rely upon the detailed examination of spectroscopic data for rock and mineral identification. This typically requires the collection of high resolution spectroscopic measurements. However, they tend to be scarce, as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e087cfe9af55391741a8a6cd45325c70
https://doi.org/10.1609/aaai.v34i08.7030
https://doi.org/10.1609/aaai.v34i08.7030
Publikováno v:
IEEE Robotics and Automation Letters. 5:3390-3397
This letter addresses the path planning problem for a rover on deformable, sloped terrains. As such terrains induce high slip and possible immobilization of rovers, finding a path that avoids critical slip is important for traversing the terrains. Ho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7662ef85ca570002b22031417ab5c554
https://doi.org/10.1109/lra.2020.2975756
https://doi.org/10.1109/lra.2020.2975756
Autor:
David Wettergreen, Alberto Candela, Michelle M. Gierach, Gail Woodward, David R. Thompson, Kevin Edelson
Publikováno v:
Frontiers in Marine Science, Vol 8 (2021)
Coral reefs are of undeniable importance to the environment, yet little is known of them on a global scale. Assessments rely on laborious, local in-water surveys. In recent years remote sensing has been useful on larger scales for certain aspects of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9428115d5011dadb548c70a82542e09e
https://doi.org/10.3389/fmars.2021.689489
https://doi.org/10.3389/fmars.2021.689489
Publikováno v:
Journal of Terramechanics. 85:39-57
This paper addresses the design of rigid wheels for planetary rovers in loose, granular soil. Wheel surface features, such as grousers, are known to improve tractive capability in planetary-relevant soils. However there are no comprehensive design gu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae9648ea55e6ff92cbe5d13555d47ea9
https://doi.org/10.1016/j.jterra.2019.06.002
https://doi.org/10.1016/j.jterra.2019.06.002