Results 81 to 90 of about 76,745 (212)

Passive sorting of asteroid material using solar radiation pressure [PDF]

open access: yes, 2014
Understanding dust dynamics in the vicinity of asteroids is key for future science missions and, in the long-term, for asteroid exploitation. This paper analyses the feasibility of manipulating asteroid material by means of solar radiation pressure.
Sanchez Cuartielles, Joan-Pau   +2 more
core   +1 more source

Holocene impact craters on Earth

open access: yesMiscellanea Geographica: Regional Studies on Development, 2023
Impact craters are formed by collisions of cosmic bodies moving with hypervelocity. The formation of these features is not restricted to the distant geological past; new structures are constantly being created and at least 13 confirmed impact craters and
Losiak Anna
doaj   +1 more source

Short-Term Consequences of Asteroid Impacts into the Ocean: A Portuguese Case Study

open access: yesUniverse, 2022
Asteroid impacts are a proven global threat, meaning that any location on Earth might be a subject to their consequences. Such collisions are not likely in any person’s lifetime, but their aftermath could be catastrophic.
Renato H. Morais   +3 more
doaj   +1 more source

Large‐Scale Applications of Plasma Technologies: Progresses and Challenges

open access: yesHigh Voltage, EarlyView.
ABSTRACT Plasma technologies convert electrical power into energetic electrons, ions, reactive species, radiation and heat, thereby breaking through the bottleneck of purely thermal or chemical routes and bringing impressive changes to our world. This roadmap reviews the progress and challenges of plasma technologies from a large‐scale and application ...
Pankaj Attri   +51 more
wiley   +1 more source

Morphological and Morphometric Characterisation of Selected Camarodont Sea Urchin (Echinoidea: Camarodonta) Pedicellariae (Paracentrotus lividus, Psammechinus miliaris and Echinus esculentus)

open access: yesActa Zoologica, EarlyView.
ABSTRACT Pedicellariae are small appendages on the surface of the echinoid test, involved in defence, cleaning, and locomotion. Pedicellariae in three species of camarodont sea urchins common in UK waters (Paracentrotus lividus [Lamarck, 1816], Psammechinus miliaris [P.L.S Müller, 1771] and Echinus esculentus [Linnaeus, 1758]) are the focus of this ...
H. C. Reinardy   +6 more
wiley   +1 more source

Searching Minor Planets and Photometric Quality of 60cm Reflector in Gimhae Astronomical Observatory [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2007
In this paper, we have presented the observational result for the photometric quality of main telescopes in Gimhae Astronomical Observatory. Also we performed the observation of searching new minor planets as competitive work in public observatories. The
Sang Hyun Lee   +2 more
doaj   +1 more source

The Truth, the Whole Truth, and Nothing but the Truth: Automatic Visualization Evaluation from Reconstruction Quality

open access: yesComputer Graphics Forum, EarlyView.
Abstract Recent advances in AI enable the automatic generation of visualizations directly from textual prompts using agentic workflows. However, visualizations produced via one‐shot generative methods often suffer from insufficient quality, typically requiring a human in the loop to refine the outputs.
Roxana Bujack   +4 more
wiley   +1 more source

Experimental characterization of the thrust induced by laser ablation on an asteroid [PDF]

open access: yes, 2013
This paper presents an improved laser ablation model and compares the performance – Δv and mass efficiency - of laser ablation against contactless deflection methods based on ion-propulsion.
Vasile, Massimiliano   +4 more
core   +3 more sources

OBSERVATION OF ASTEROID OCCULTATIONS WITH HELP OF THE METHOD OF TEMPORAL UNSQUEEZING CCD-IMAGES IN 2006

open access: yesOdessa Astronomical Publications, 2017
Description of the method of temporal unsqueezing CCD-images is presented for observations of asteroids occultations. The method was applied for observations of 9 asteroid occultations with telescope AZT - 8 (D = 0.7m, F = 2.8m) and CCD ST - 8MXE in ...
F. I. Kravtsov, I. V. Lukyanyk
doaj   +1 more source

Using Neural Networks to Model Main Belt Asteroid Albedos as a Function of Their Proper Orbital Elements

open access: yesThe Planetary Science Journal, 2023
Asteroid diameters are traditionally difficult to estimate. When a direct measurement of the diameter cannot be made through either occultation or direct radar observations, the most common method is to approximate the diameter from infrared observations.
Zachary Murray
doaj   +1 more source

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