Results 31 to 40 of about 10,634 (253)

Assessing the meteoroid risk in near earth space

Open Astronomy, 2018
The meteoroid risk in circumterrestrial space is basically caused by 1-10 mm meteoroid bodies. Meteoroid particles of such dimensions cannot be registered by modern monitoring astronomical instruments.
Murtazov Andrey K.
doaj   +1 more source

Streamlets within meteoroid streams on NEA orbits [PDF]

Geofísica Internacional, 2008
Five meteoroid streams of apparent asteroidal nature have been identified in the IAU_MDC Database of Photographic Meteors. Three streams contain streamlets, composed of two or more meteoroids sharing nimpact rate on the NEA population by objects 1 m or ...
F. Ortega Gutiérrez, J. L. García Martínez   +1 more
doaj  

Chelyabinsk Meteoroid Acoustic Effects [PDF]

Radio physics and radio astronomy, 2017
Purpose: The parameters (period, time delay, celerity, duration, and the rate of attenuation) of the acoustic signal which was generated during the Chelyabinsk meteoroid passage and explosion on February 15, 2013 are investigated along with atmospheric parameters.
openaire   +2 more sources

Laparoscopic Colorectal Surgery in the Era of Robotics: Evolution, Eclipse, or Equilibrium?

Annals of Gastroenterological Surgery, EarlyView.
ABSTRACT Minimally invasive colorectal surgery has undergone a remarkable transformation over the past three decades. Laparoscopy, once viewed with skepticism, is now firmly established as a standard approach, supported by robust randomized trials demonstrating oncologic safety and improved recovery compared to open surgery.
Amanjeet Singh, Archit Gupta, Azhar Perwaiz, Adarsh Chaudhary   +3 more
wiley   +1 more source

A Near-Earth Object Model Calibrated to Earth Impactors

The Astronomical Journal
The population of Earth-impacting meteoroids and their size-dependent orbital elements are key to understanding the origin of meteorites and informing planetary defense efforts. Outstanding questions include the role of collisions in depleting meteoroids
Sophie E. Deam, Hadrien A. R. Devillepoix, David Nesvorný, Patrick M. Shober, Eleanor K. Sansom, Jim Albers, Eric Anderson, Zouhair Benkhaldoun, Peter G. Brown, Luke Daly, George DiBattista, Hasnaa Chennaoui Aoudjehane, Christopher D. K. Herd, Tom Herring, Jonathan Horner, Peter Jenniskens, Derek C. Poulton, Martin D. Suttle, Anna Zappatini   +18 more
doaj   +1 more source

Dormant Comets Among the Near-Earth Object Population: A Meteor-Based Survey

, 2016
Dormant comets in the near-Earth object (NEO) population are thought to be involved in the terrestrial accretion of water and organic materials. Identification of dormant comets is difficult as they are observationally indistinguishable from their ...
Brown, Peter G., Pokorný, Petr, Ye, Quan-Zhi   +2 more
core   +1 more source

Large Language Model‐Based Chatbots in Higher Education

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
The use of large language models (LLMs) in higher education can facilitate personalized learning experiences, advance asynchronized learning, and support instructors, students, and researchers across diverse fields. The development of regulations and guidelines that address ethical and legal issues is essential to ensure safe and responsible adaptation
Defne Yigci, Merve Eryilmaz, Ail K. Yetisen, Savas Tasoglu, Aydogan Ozcan   +4 more
wiley   +1 more source

Meteor fluxes and visual magnitudes from EISCAT radar event rates: a comparison with cross-section based magnitude estimates and optical data [PDF]

Annales Geophysicae, 1998
Incoherent scatter radars (ISR) are versatile instruments for continuous monitoring of ionisation processes in the Earth's atmosphere. EISCAT, The European Incoherent Scatter facility has proven effective also in meteor studies. The time resolution of
A. Pellinen-Wannberg, A. Westman, G. Wannberg, K. Kaila   +3 more
doaj   +1 more source

Meteor showers of comet C/1917 F1 Mellish

, 2010
December Monocerotids and November Orionids are weak but established annual meteor showers active throughout November and December. Analysis of a high quality orbits subset of the SonotaCo video meteor database shows that the distribution of orbital ...
Asklöf, Asklöf, Betlem, Chamberlin, Crifo, Drummond, Fox, Hasegawa, Hasegawa, Hindley, Hindley, Imponente, J. Tóth, Klačka, Koten, Kresáková, L. Kornoš, Lindblad, Lindblad, Lindblad, Ma, McCrosky, Neslušan, Nilsson, Ohtsuka, Olsson-Steel, Orchiston, P. Vereš, Pecina, Porter, Porubčan, Rendtel, Sekanina, SonotaCo, Southworth, Vereš, Whipple, Whipple   +37 more
core   +1 more source

The Dynamics of Meteoroid Streams [PDF]

Symposium - International Astronomical Union, 1992
Meteor showers are seen at regular and frequent intervals on Earth. They are caused by meteoroids (that is small dust grains) in a coherent stream, all moving on similar heliocentric orbits, burning up on encountering the atmosphere of the Earth. Such streams contain 1012 or more meteoroids, with the mass of the visible meteoroids ranging up to about 1
openaire   +2 more sources