Results 41 to 50 of about 450 (192)

Observation of three twilight bolides in August, 2013 from Galicia, NW of Spain [PDF]

, 2014
The Spanish Meteor Network (SPMN) is dedicated to the study of fireballs and bolides which may cause meteorite falls on our planet. These meteorites allow us a better understanding of other bodies from the Solar System and that is why we operate 25 ...
Docobo, José A., Madiedo Gil, José María, Campo, P. P., Trigo Rodríguez, Josep María   +3 more
core  

DreamFold: A World Model to efficiently generate protein folding pathways in the latent space

Protein Science, Volume 35, Issue 11, November 2026.
Abstract While there is an abundance of static data for the structure of biological macromolecules, the data regarding their folding mechanisms and dynamics is scarce, posing a challenge to the training of AI models. The World Model approach, which has been very successful in robotics, can come in handy in this regard. From limited data, it can build a
Alan Ianeselli, Jewon Im, Eddie Cavallin, Mark B. Gerstein   +3 more
wiley   +1 more source

Carbon source from limestone target by impact reaction at the K/T Boundary [PDF]

, 1999
Carbon found at the K/T geological boundaries can be explained by impact reaction between the K/T bolides and limestone target rocks, which are proved by other natural and artificial ...
Gucsik, Arnold, Kobayashi, H., Kedves, Miklós, Miura, Y.   +3 more
core   +1 more source

Finding Fireballs in Lightning: A Daily Pipeline to Find Meteors in Weather Satellite Data

Earth and Space Science
Weather satellite data contains a wealth of information well beyond its application to meteorology. The GOES weather satellite Geostationary Lightning Mapper instruments detect millions of lightning strikes per day.
Jeffrey C. Smith, Robert L. Morris, Jessie Dotson, Randolph Longenbaugh, Jeffrey R. Olson, Anthony Ozerov, Daniel Fox   +6 more
doaj   +1 more source

Base Semantics—A Novel Approach for Minimizing Malware Detection Rules

SECURITY AND PRIVACY, Volume 9, Issue 6, November/December 2026.
ABSTRACT The rapid evolution of malware variants has increasingly undermined traditional signature‐based detection techniques, which are easily evaded through obfuscation and polymorphism that preserve malicious functionality. This challenge is particularly acute in Internet of Things (IoT) environments, where device heterogeneity, resource constraints,
Khizar Hayat, Sadaf Hina, Fabiha Hashmat, Muhammad Husnain, Syed Ghazanfar Abbas, Ghalib A. Shah   +5 more
wiley   +1 more source

Seismic Recovery of Acoustic Source Height During the OSIRIS-REx Sample Return Capsule Re-Entry

The Seismic Record
Controlled hypersonic reentries with well-constrained trajectories are exceedingly rare, yet they provide valuable reference cases for validating geophysical source characterization methods applicable to bolides and space debris. The 24 September 2023 re-
Elizabeth A. Silber, Logan T. Scamfer
doaj   +1 more source

Direct Measurement of Explosive Impulse From Contact to the Ultra‐Near Field

Propellants, Explosives, Pyrotechnics, Volume 51, Issue 10, Page 1721-1736, October 2026.
ABSTRACT Measurement of impulse from explosive charges in contact and ultra‐near‐field regimes remains poorly characterised due to the short duration of loading, high strain rates, and the difficulty of obtaining direct momentum‐based measurements.
R. Alford, R. Hazael, R. Critchley, L. Humphreys   +3 more
wiley   +1 more source

Methane from UV-irradiated carbonaceous chondrites under simulated Martian conditions [PDF]

, 2012
A UV photolytic process was studied for the production of methane from carbonaceous chondrites under simulated Martian conditions. Methane evolution rates from carbonaceous chondrites were found to be positively correlated to temperature (−80 to 20°C ...
Britt, Daniel T., Barlow, Nadine G., Schuerger, Andrew C., Clausen, Christian A., Moores, John E.   +4 more
core   +1 more source

Experimental Aeolian Abrasion of Basalt Sands as an Analog for Producing Martian Dust

Journal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract Dust covers a significant portion of Mars' surface, with dust storms periodically engulfing the planet. Despite this, the origins of Martian dust are poorly understood, especially for ancient dust deposits. To address this deficit, we conducted experiments to replicate the mechanical abrasion of saltating sand grains in a Martian desert dune ...
Steven M. Adams, Gerilyn S. Soreghan
wiley   +1 more source

Numerical Simulation of Bolide Entry with Ground Footprint Prediction [PDF]

, 2016
As they decelerate through the atmosphere, meteors deposit mass, momentum and energy into the surrounding air at tremendous rates. Trauma from the entry of such bolides produces strong blast waves that can propagate hundreds of kilometers and cause ...
Donovan Mathias, Aftosmis, Michael J., Michael J. Aftosmis, Mathias, Donovan L., Berger, Marsha J., Marian Nemec, Marsha Berger, Nemec, Marian   +7 more
core   +1 more source