Results 11 to 20 of about 12,973 (259)
The future of lidar in planetary science
Frontiers in Remote Sensing, 2022 Lidar has enabled advances in the knowledge of the Solar System through geophysical and atmospheric studies of the Moon, Mercury, Mars, and several asteroids.
Daniel R. Cremons
doaj +1 more source
Frontiers in Earth Science, 2023 Standard-size samples are usually used for traditional paleomagnetic studies. In some cases, small irregular samples are employed considering their amount and magnetic strength as well as experiment efficiency.
Yifei Hou +15 more
doaj +1 more source
TIDAL EVOLUTION OF A SECULARLY INTERACTING PLANETARY SYSTEM [PDF]
The Astrophysical Journal, 2011 Accepted for publication in the Astrophysical Journal, 17 pages, including 1 ...
Greenberg, Richard +1 more
openaire +2 more sources
Shock and Vibration, 2021 Planetary gear transmission system is an important transmission part of large machinery and is prone to failure. Aiming at the problem of how to extract fault information from vibration signals of nonlinear and nonstationary planetary gearboxes, a ...
Zhe Wu +4 more
doaj +1 more source
The evolution of planetary nebulae [PDF]
Astronomy & Astrophysics, 2010 By means of hydrodynamical models we do the first investigations of how the properties of planetary nebulae are affected by their metal content and what can be learned from spatially unresolved spectrograms of planetary nebulae in distant stellar systems.
Schönberner, D. +3 more
openaire +2 more sources
Planetary Nebulae as Sources of Chemical Enrichment of the Galaxy
Frontiers in Astronomy and Space Sciences, 2022 During the late asymptotic giant branch (AGB) phase of stellar evolution, the element carbon is created through the triple-α nuclear reaction. This is followed by the synthesis of other heavy elements via neutron capture in the core and the dredge-up of ...
Sun Kwok, Sun Kwok
doaj +1 more source
Dynamical evolution of extrasolar planetary systems [PDF]
Proceedings of the International Astronomical Union, 2004 To date, more than 130 extrasolar planets around main sequence stars are revealed mainly by the Doppler radial velocity measurements. Due to the observational biases, most of the detected planets are moving in orbits close to the host stars, with some in highly eccentric orbits.
Ji-Lin Zhou, Yi-Sui Sun
openaire +1 more source
Planetary Engulfment Prognosis within the ρ CrB System
The Astrophysical Journal, 2023 Exoplanets have been detected around stars at various stages of their lives, ranging from young stars emerging from formation to the latter stages of evolution, including white dwarfs and neutron stars.
Stephen R. Kane
doaj +1 more source
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 +7 more
wiley +1 more source
The Astrophysical JournalExploring low-velocity collisions is crucial for unraveling intricate processes in planetary formation, particularly the bouncing barrier that impedes the aggregation of dust into sizable planetesimals.
Lei Lei +12 more
doaj +1 more source