Zobrazeno 1 - 10
of 38
pro vyhledávání: '"S Gertsch"'
Autor:
Julie Brisset, Charles A. Hibbitts, David T. Blewett, J. T. S. Cahill, Anthony Colaprete, B. T. Greenhagen, Mona Delitsky, Jessica Flahaut, Orenthal J. Tucker, Richard C. Elphic, Ariel N. Deutsch, D. H. Needham, Shuai Li, Nandita Kumari, Shashwat Shukla, Cesare Grava, Matthew A. Siegler, Kris Zacny, A. M. Stickle, Eliot Sefton-Nash, William M. Farrell, Leslie S. Gertsch, W. R. Patterson, S. S. Bhiravarasu, N. L. Chabot, Jessica Barnes, R. L. Klima, Paul G. Lucey, Devanshu Jha, Dana M. Hurley, Jonathan Grandidier, Maria E. Banks, Julie L. Mitchell, Prabal Saxena, Jorge I. Nunez, Timothy A. Livengood, Parvathy Prem, David Lawrence, Mehdi Benna, Jared Atkinson, Sona Hosseini, Georgiana Y. Kramer, Yang Liu, D. C. Barker, Simeon Barber, Amanda R. Hendrix, Michael J. Poston, Kurt D. Retherford, Paul O. Hayne, Kathleen Mandt, George Sowers, Julie Stopar
Publikováno v:
Bulletin of the AAS. 53
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d389804831ebe1ad4f9280650e47706
https://doi.org/10.3847/25c2cfeb.f3dc6df2
https://doi.org/10.3847/25c2cfeb.f3dc6df2
Publikováno v:
Planetary and Space Science. 159:28-42
We have calculated the number of water-bearing near-Earth objects as a function of return-trip delta-v ( Δ v R T ). First, we combined a model of the near-Earth object's (NEO) orbit and size-frequency distribution with other measurements of their pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75b93e5caffd5288fcbd900db4b5cb58
https://doi.org/10.1016/j.pss.2018.04.005
https://doi.org/10.1016/j.pss.2018.04.005
Autor:
Joel C. Sercel, Robert Jedicke, Egboche Unobe, Stanley G. Love, Mark A. Crawford, Leslie S. Gertsch, Christopher B. Dreyer
Publikováno v:
Earth and Space 2018.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d79291a27e58eacf820fa9ce02f0c1f
https://doi.org/10.1061/9780784481899.041
https://doi.org/10.1061/9780784481899.041
Autor:
Egboche Unobe, Joel C. Sercel, Christopher B. Dreyer, Daniel T. Britt, Mark A. Crawford, Leslie S. Gertsch, Robert Jedicke
Publikováno v:
2018 IEEE Aerospace Conference.
We have developed an integrated mathematical model of the outgassing processes associated with thermal mining of carbonaceous asteroids based on thermodynamics, geophysics, and gas-dynamic considerations to account for variability in material propert
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a992cb57c67ff80f22e166ebd46180ef
https://doi.org/10.1109/aero.2018.8396701
https://doi.org/10.1109/aero.2018.8396701
Autor:
Philip T. Metzger, Edward B. Bierhaus, David M. Reeves, Jerome B. Johnson, Paul Sánchez, Leslie S. Gertsch, Anton V. Kulchitsky, Daniel J. Scheeres, Christine Hartzell, Daniel T. Britt, Kris Zacny, Benton C. Clark
Geotechnical properties of a granular material affect all surface operations from mobility to landing and excavation. As such, significant efforts to study and model these properties are necessary before sending a spacecraft. Lack of knowledge of reg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5e8d5090e8979a151acd662b158aed9
https://doi.org/10.1016/b978-0-12-813325-5.00008-2
https://doi.org/10.1016/b978-0-12-813325-5.00008-2
Autor:
Mark E. Schlesinger, Angel Abbud-Madrid, Egboche Unobe, Robert Jedicke, Leslie S. Gertsch, Diane L. Linne, Alexander N. Krot, James G. Mantovani, Joel C. Sercel, Christopher B. Dreyer
Publikováno v:
10th Symposium on Space Resource Utilization.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78687e7533719bfee32c84eb8d8fdfaa
https://doi.org/10.2514/6.2017-0652
https://doi.org/10.2514/6.2017-0652
Publikováno v:
Rock Mechanics and Rock Engineering. 47:1891-1903
As the use of mechanical excavation in tunneling and mining activities expands, so has the use of disc cutters in various ground conditions. The impact of moisture content on rock behavior and rock excavation by disc cutters is examined in this study
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::759b6d4841dd8f23494f149f2897444e
https://doi.org/10.1007/s00603-013-0482-8
https://doi.org/10.1007/s00603-013-0482-8
Autor:
Masafumi Iai, Leslie S. Gertsch
Publikováno v:
Journal of Aerospace Engineering. 26:97-104
As human activities expand to the Moon, Mars, and other extraterrestrial bodies, it will be necessary to use local resources rather than bringing everything from Earth. In situ resource utilization (ISRU), or planetary surface engineering, starts wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ffdb8bcbf3587e357f164cdb82766f5
https://doi.org/10.1061/(asce)as.1943-5525.0000221
https://doi.org/10.1061/(asce)as.1943-5525.0000221
Autor:
Travis J. Canney, Christopher Brian Dreyer, Leslie S. Gertsch, Joel C. Sercel, Alex Lampe, Angel Abbud-Madrid
Publikováno v:
Earth and Space 2016.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1cfcec566e227d8bbdf3b603255eee26
https://doi.org/10.1061/9780784479971.047
https://doi.org/10.1061/9780784479971.047