Results 101 to 110 of about 3,849 (269)

Meteors and meteor spectra analysis [PDF]

, 1982
Studies on meteor spectroscopy are reported. The following topics are discussed: photometric spectra of 17 meteors; the chemistry of cometary meteoroids; and current trends in meteor ...
Millman, P. M.
core  

Affinification: A Fine Approximation of Deformations

Computer Graphics Forum, EarlyView.
Abstract We introduce affinification, a novel method for accelerating physics‐based animation of elastic solids. During a time‐dependent simulation, our method automatically partitions the space into affine and elastic regions depending on the deformation.
A. Mercier‐Aubin, T. Schneider, P.G. Kry, S. Andrews   +3 more
wiley   +1 more source

Authoring Terrestrial Planets with Diffusion Models

Computer Graphics Forum, EarlyView.
Abstract To support the design and subsequent generation of terrestrial planets for use in the creative media, we propose a solution that employs a generative model trained on satellite data from planetary bodies with a defined solid surface, such as the Earth and Mars.
Oliver Borg, James Gain, Éric Guérin, Adrien Peytavie, Marie‐Paule Cani, Eric Galin, Guillaume Cordonnier   +6 more
wiley   +1 more source

Observations of meteor-head echoes using the Jicamarca 50MHz radar in interferometer mode [PDF]

Atmospheric Chemistry and Physics, 2004
We present results of recent observations of meteor-head echoes obtained with the high-power large-aperture Jicamarca 50MHz radar (11.95°S, 76.87°W) in an interferometric mode.
J. L. Chau, R. F. Woodman
doaj  

Role of Large Language Model—Artificial Intelligence in Enhancing Communication Skills in Undergraduate Oral Healthcare Students

European Journal of Dental Education, EarlyView.
ABSTRACT Introduction Artificial Intelligence (AI) is transforming dental education (DE) by advancing teaching strategies, clinical training, and patient care. Its integration allows for personalized learning experiences and realistic simulations, and equips students with the competencies required to deliver high‐quality oral healthcare in a digital ...
Munazza Khanzada, Panpan Zhang, Vu Anh Tran, Melanie Nasseripour, Ana Angelova, Avijit Banerjee, Alfie Abdul Rahman   +6 more
wiley   +1 more source

Evaporation of high speed sporadic meteors [PDF]

, 2003
International audienceRecent measurements conducted at the Arecibo Observatory report high-speed sporadic meteors having velocities near 50 km/s. The results seem to indicate a bimodal velocity distribution in the sporadic meteors (maxima at ~20 km/s and
Roth, C., Murad, E.
core   +2 more sources

Technical Possibilities and Limitations of the DPS-4D Type of Digisonde in Individual Meteor Detections

Remote Sensing
During the peak days of the 2019 Leonids and Geminids (16–19 November and 10–16 December), two ionograms/minute and one Skymap/minute campaign measurements were carried out at the Sopron (47.63°N, 16.72°E) and Průhonice (50.00°N, 14.60°E) Digisonde ...
Csilla Szárnya, Zbyšek Mošna, Antal Igaz, Daniel Kouba, Tobias G. W. Verhulst, Petra Koucká Knížová, Kateřina Podolská, Veronika Barta   +7 more
doaj   +1 more source

Triple Oxygen Isotope Compositions of Isotopic Reference Waters: Implications for VSMOW‐Scale and VSMOW–SLAP‐Scale Δ′17O Calibration

Geostandards and Geoanalytical Research, EarlyView.
Key Points Triple oxygen isotope ratios of two primary (VSMOW, SLAP) and twelve secondary water isotopic reference materials were precisely measured using BrF5 fluorination‐IRMS. The measured Δ'17OVSMOW value for SLAP (34 ± 6 per meg) demonstrates that VSMOW‐SLAP normalisation ensures interlaboratory comparability, but introduces systematic offsets for
Ryoji Tanaka, Andreas Pack, Tyler B. Coplen   +2 more
wiley   +1 more source

Energy deposition in antimatter meteors

Antimatter meteors, like ordinary ones, can be heated during their infall flight. However, this could happen by a completely different process than in the case of koinomatter meteors, since in the latter case the annihilation interactions mechanism is ...
Papaelias, P.M.
core   +1 more source

Multi-station fireball observations combining all-sky spectroscopy and optical trajectory measurements

Earth and Planetary Physics
Optical monitoring of fireballs can provide reconstructions of luminous trajectories and the derivation of heliocentric orbits, whereas spectral observations are able to supply information from an entirely different perspective, with composition and ...
ZhiJian Xu, HaiBin Zhao, Nawaz Mahomed, Yi Li   +3 more
doaj   +1 more source