Results 1 to 10 of about 24,472 (266)
Performances of Planetary Magnetorheological Transmission Devices
Frontiers in Materials, 2022 Magnetorheological transmission devices (MRTDs) are a type of power transmission device using magnetorheological fluids (MRFs) as the transmission medium, which have the advantages of rapid response and continuously adjustable output performances.
Xuli Zhu +5 more
doaj +1 more source
Planetary Internal Structures [PDF]
, 2014 This chapter reviews the most recent advancements on the topic of terrestrial and giant planet interiors, including Solar System and extrasolar objects. Starting from an observed mass-radius diagram for known planets in the Universe, we will discuss the various types of planets appearing in this diagram and describe internal structures for each type ...
Baraffe, I +3 more
openaire +3 more sources
The Planetary Science Journal, 2023 Magma oceans (MOs) are episodes of large-scale melting of the mantle of terrestrial planets. The energy delivered by the Moon-forming impact induced a deep MO on the young Earth, corresponding to the last episode of core-mantle equilibration.
Maxime Maurice +2 more
doaj +1 more source
The Temperature Structure of Dusty Planetary Nebulae [PDF]
Symposium - International Astronomical Union, 2001 We have computed photoionization models of planetary nebulae containing dust. Photoelectric heating by small grains has an important effects on the temperature structure of the nebulae and could solve a number of problems that have found no satisfactory solution so far.
Stasinska, Grazyna, Szczerba, Ryszard
openaire +3 more sources
Morphological Structures of Planetary Nebulae [PDF]
Publications of the Astronomical Society of Australia, 2010 AbstractSince various structural components of planetary nebulae (PN) manifest themselves differently, a combination of optical, infrared, submillimetre and radio techniques is needed to derive a complete picture of planetary nebulae. The effects of projection can also make derivation of the true 3-D structure difficult.
openaire +4 more sources
NASA’S PLANETARY GEOLOGIC MAPPING PROGRAM: OVERVIEW [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 NASA’s Planetary Science Division supports the geologic mapping of planetary surfaces through a distinct organizational structure and a series of research and analysis (R&A) funding programs.
D. A. Williams
doaj +1 more source
The Planetary Theory of Solar Activity Variability: A Review
Frontiers in Astronomy and Space Sciences, 2022 Commenting the 11-year sunspot cycle, Wolf (1859, MNRAS 19, 85–86) conjectured that “the variations of spot-frequency depend on the influences of Venus, Earth, Jupiter, and Saturn.” The high synchronization of our planetary system is already nicely ...
Nicola Scafetta, Antonio Bianchini
doaj +1 more source
Exploring Martian Magnetic Fields with a Helicopter
The Planetary Science Journal, 2023 The era of helicopter-based surveys on Mars has already begun, creating opportunities for future aerial science investigations with a range of instruments.
Anna Mittelholz +8 more
doaj +1 more source
Shape, structure, and morphology in planetary nebulae [PDF]
Proceedings of the International Astronomical Union, 2011 AbstractA revival over the past two decades in planetary nebula (PN) morphological studies springs from a combination of factors, including the advent of wide-area, high dynamic range detectors; the growing archives of high resolution images from the X-ray to the sub-mm; and the advent of sophisticated models of the co-evolution of PNe and their ...
openaire +2 more sources
Structure augmented monocular saliency for planetary rovers
Robotics and Autonomous Systems, 2017 This paper proposes a novel object detection method based on the visual saliency model in order to reliably detect objects such as rocks from single monocular planetary images. The algorithm takes advantage of the relatively homogeneous and distinct albedos present in planetary environments such as Mars or the Moon to extract a Digital Terrain Model of
Conrad Spiteri +2 more
openaire +4 more sources