Results 41 to 50 of about 78,859 (308)

Electron Energization by Ion Density Enhancement in the Martian Magnetotail—MAVEN Observations

The Astrophysical Journal
It has been long observed at Mars that electron fluxes are enhanced during the tail current sheet crossings, of which the cause is not well understood. We use a novel approach to reveal one of the electron energization mechanisms with observations from ...
Shaosui Xu, David L. Mitchell, Jasper S. Halekas, James P. McFadden, Christopher M. Fowler, Kathleen Hanley, Gina A. DiBraccio, Christian Mazelle, Hassan Akbari, Shannon M. Curry   +9 more
doaj   +1 more source

DIVISION III: PLANETARY SYSTEMS SCIENCE [PDF]

Proceedings of the International Astronomical Union, 2008
The meeting was opened by Ted Bowell, president, at 11 am. The 2006 Division III meetings were reviewed by Guy Consolmagno, secretary; as the minutes of those meetings have already been published, they were assumed to be approved.
Edward L. G. Bowell, Karen J. Meech, Iwan P. Williams, Alan P. Boss, Guy J. Consolmagno, Régis Courtin, Julio A. Fernández, Bo Å. S. Gustafson, Walter F. Huebner, Anny-Chantal Levasseur-Regourd, Mikhail Ya. Marov, Michel Mayor, Rita M. Schulz, Pavel Spurný, Giovanni B. Valsecchi, Jun-ichi Watanabe, Iwan P. Williams, Adolf N. Witt   +17 more
openaire   +4 more sources

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

Advanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost, Lionel Presmanes, Soléna Colin, Marie Vidal, Sophie Guillemet‐Fritsch   +4 more
wiley   +1 more source

Machine Learning for Planetary Science

, 2022
Humans have used robots to explore other planets in our solar system since the beginning of planetary exploration. In the Apollo era, robotic spacecraft were sent to the Moon ahead of humans to collect critical information about lunar surface properties ...
Aye, Michael, Amore, Mario, Kerner, Hannah, Helbert, Jörn   +3 more
core   +1 more source

The Interplay of Surface Composition, Mineralogy, and Physical Conditions That Affect the Surface Release Processes and Particle Environment of Mercury

The Planetary Science Journal
Mercury has a very tenuous atmosphere starting at the surface, which is referred to as a surface-bound exosphere, where there are no collisions between exospheric particles.
Peter Wurz, Noah Jäggi, André Galli, Audrey Vorburger, Deborah Domingue, Paul S. Szabo, Johannes Benkhoff, Océane Barraud, Daniel Wolf Savin   +8 more
doaj   +1 more source

Lorenz Energy Cycle: Another Way to Understand the Atmospheric Circulation on Tidally Locked Terrestrial Planets

The Planetary Science Journal, 2023
In this study, we employ and modify the Lorenz energy cycle (LEC) framework as another way to understand the atmospheric circulation on tidally locked terrestrial planets. It well describes the atmospheric general circulation in the perspective of energy
Shuang Wang, Jun Yang
doaj   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

In situ, Surface-deployed Distributed Instruments for Planetary Science: Scientific Opportunities and Technology Feasibility

The Planetary Science Journal
In this paper, we assess the scientific promise and technology feasibility of in situ distributed instruments for planetary surface and atmospheric science. A distributed instrument is an instrument designed to collect spatially and temporally correlated
Federico Rossi, Robert C. Anderson, Saptarshi Bandyopadhyay, Erik Brandon, Ashish Goel, Joshua Vander Hook, Michael Mischna, Michaela Villarreal, Mark Wronkiewicz   +8 more
doaj   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Multiparameter Constraints on Empirical Infrasound Period-Yield Relations for Bolides and Implications for Planetary Defense

The Astronomical Journal
How effective are methods for estimating bolide energies from infrasound signal period-yield relationships? A single global period–energy relation can obscure significant variability introduced by parameters such as the atmospheric Doppler wind profile ...
Elizabeth A. Silber, Josep M. Trigo-Rodríguez, Iyare Oseghae, Eloy Peña-Asensio, Mark Boslough, Rodney Whitaker, Christoph Pilger, Philip Lubin, Vedant Sawal, Claus Hetzer, Randy Longenbaugh, Peter Jenniskens, Brin Bailey, Esther Mas Sanz, Patrick Hupe, Alexander N. Cohen, Thom R. Edwards, Sasha Egan, Reynold E. Silber, Summer C. Czarnowski, Miro Ronac Giannone   +20 more
doaj   +1 more source