Results 31 to 40 of about 6,968,082 (173)

Accuracy of view factor calculations for digital terrain models of comets and asteroids

Astronomy & Astrophysics, 2020
Context. Detailed shape and topographic models coupled with sophisticated thermal physics are critical elements to proper characterization of surfaces of small bodies in our solar system.
L. Rezac, Yinghe Zhao
semanticscholar   +1 more source

Temporary Capture of Asteroids by an Eccentric Planet [PDF]

, 2017
We have investigated the probability of temporary capture of asteroids in eccentric orbits by a planet in a circular or eccentric orbit through analytical and numerical calculations.
A. Higuchi, S. Ida
semanticscholar   +1 more source

An integrated DEM code for tracing the entire regolith mass movement on asteroids

Monthly notices of the Royal Astronomical Society
This paper presents a general strategy for tracking the scale-span movement process of asteroid regolith materials. It achieves the tracking of the mass movement on the asteroid at a realistic scale, under conditions of high-resolution asteroid surface
Zhijun Song, Yang Yu, Stefania Soldini, Bin Cheng, Patrick Michel   +4 more
semanticscholar   +1 more source

Uninterrupted optical light curves of main-belt asteroids from the K2 mission [PDF]

, 2016
Context. Because the second reaction wheel failed, a new mission was conceived for the otherwise healthy Kepler space telescope. In the course of the K2 mission, the telescope is staring at the plane of the Ecliptic.
R. Szabó, A. Pál, K. Sárneczky, G. Szab'o, László Molnár, L. Kiss, O. Hanyecz, E. Plachy, C. Kiss   +8 more
semanticscholar   +1 more source

The direction of core soldification in asteroids: implications for dynamo generation.

Icarus
Paleomagnetic studies of meteorites over the past two decades have revealed that the cores of multiple meteorite parent bodies, including those of certain chondritic groups, generated dynamo fields as they crystallised. However, uncertainties in the direction and mode of core solidification in asteroid-sized bodies have meant using the timings and ...
Dodds, KH, Bryson, JFJ, Neufeld, JA, Harrison, RJ   +3 more
openaire   +3 more sources

Hydrodynamics of tsunamis generated by asteroid impact in the Black Sea

Open Physics, 2012
Abstract Two-dimensional and one-dimensional models are used to evaluate the seashore effects of the tsunami generated by an asteroid hitting the deep water in the Eastern region of the Black Sea. The shallow water theory has been used to describe tsunami propagation.
Isvoranu Dragos, Badescu Viorel
openaire   +2 more sources

Predicting Performance of Hall Effect Ion Source Using Machine Learning

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This study introduces HallNN, a machine learning tool for predicting Hall effect ion source performance using a neural network ensemble trained on data generated from numerical simulations. HallNN provides faster and more accurate predictions than numerical methods and traditional scaling laws, making it valuable for designing and optimizing Hall ...
Jaehong Park, Guentae Doh, Dongho Lee, Youngho Kim, Changmin Shin, Su‐Jin Shin, Young‐Chul Ghim, Sanghoo Park, Wonho Choe   +8 more
wiley   +1 more source

A case of atypical nocardia asteroides sclerouveitis resistant to fourth-generation fluoroquinolones [PDF]

Revista Brasileira de Oftalmologia, 2016
ABSTRACT We describe an unusual case of Nocardia spp scleritis in a health girl resistant to topical fourth-generation fluoroquinolones. Clinically, there was only partial response of the scleritis to initial therapy. Treatment was changed to meropenem intravenously and topical amikacin.
Túlio Frade Reis, Marina Labarrère de Albuquerque, Vânia Martins Ribeiro Hummel, João Eudes Filho, Patrick Frensel Tzelikis   +4 more
openaire   +5 more sources

High atmospheric pressure rescues plant growth under humidity stress: A model for climate‐resilient deep underground agriculture

Deep Underground Science and Engineering, EarlyView.
High atmospheric pressure (120 kPa) in deep underground counteracts humidity‐induced physiological stress in plants, stabilizing water balance and enhancing antioxidative defenses. This synergy boosts biomass despite elevated humidity, demonstrating sustainable deep underground agriculture potential under climate uncertainty.
Yuxin He, Linglu Xu, Xiao Tan, Wenhua Zhuang, Naiwen Li, Chao Liu, Bo Tan   +6 more
wiley   +1 more source

Embryonic development of the Mediterranean starfish Hacelia attenuata

Developmental Dynamics, EarlyView.
Abstract Background Starfish play essential ecological roles as predators and ecosystem regulators; however, detailed developmental descriptions exist for only a handful of species, none of which are from the Mediterranean Sea. Results In this study, we provide the first full account of the development of the Mediterranean starfish Hacelia attenuata ...
Silvia Caballero‐Mancebo, Laurent Gilletta, Janet Chenevert, Stefania Castagnetti   +3 more
wiley   +1 more source