Results 1 to 10 of about 1,638,749 (203)

In-Flight Preliminary Performance of GF-5B/Absorbing Aerosol Sensor

open access: yesRemote Sensing, 2023
The Absorbing Aerosol Sensor (AAS) is carried on the Gao-Fen 5B (GF-5B) satellite, and it allows for the measurement of solar backscatter radiation by the atmosphere in the UV–Vis bands.
Yongmei Wang   +7 more
doaj   +1 more source

Homogeneity and heterogeneity in near-infrared FTIR spectra of Ryugu returned samples

open access: yesEarth, Planets and Space, 2023
Surface and subsurface materials of C-type near-Earth asteroid 162173 Ryugu were collected and successfully returned to the Earth in the Hayabusa2 mission.
Kentaro Hatakeda   +16 more
doaj   +1 more source

A newly revised estimation of bulk densities and examination of the shape of individual Ryugu grains

open access: yesEarth, Planets and Space, 2023
The bulk density of grains from a celestial body is a fundamental property related to its composition and structure, contributing to the understanding of its evolutionary history. In this study, we provide the bulk density of 637 grains returned from the
Akiko Miyazaki   +21 more
doaj   +1 more source

Methods for assessing change in brain plasticity at night and psychological resilience during daytime between repeated long-duration space missions

open access: yesScientific Reports, 2023
This study was designed to examine the feasibility of analyzing heart rate variability (HRV) data from repeat-flier astronauts at matching days on two separate missions to assess any effect of repeated missions on brain plasticity and psychological ...
Kuniaki Otsuka   +8 more
doaj   +1 more source

Correlated iron isotopes and silicon contents in aubrite metals reveal structure of their asteroidal parent body

open access: yesScientific Reports, 2021
Iron isotopes record the physical parameters, such as temperature and redox conditions, during differentiation processes on rocky bodies. Here we report the results of a correlated investigation of iron isotope compositions and silicon contents of ...
Soumya Ray   +3 more
doaj   +1 more source

Numerical Simulation of the Lunar Polar Environment: Implications for Rover Exploration Challenge

open access: yesAerospace, 2023
The lunar polar regions are key areas for future exploration due to the long-term continuous illumination and persistently shadowed regions that can cold trap abundant water and other volatiles.
Hong Gan   +6 more
doaj   +1 more source

Exploration of energization and radiation in geospace (ERG): challenges, development, and operation of satellite systems

open access: yesEarth, Planets and Space, 2018
The exploration of energization and radiation in geospace (ERG) satellite, nicknamed “Arase,” is the second satellite in a series of small scientific satellites created by the Institute of Space and Astronautical Science of the Japan Aerospace ...
Yosuke Nakamura   +21 more
doaj   +1 more source

Integration of Exploration and Search: A Case Study of the M3 Model [PDF]

open access: yes, 2019
International audienceEffective support for multimedia analytics applications requires exploration and search to be integrated seamlessly into a single interaction model.
A Babenko   +5 more
core   +2 more sources

Learn Generalization Feature via Convolutional Neural Network: A Fault Diagnosis Scheme Toward Unseen Operating Conditions

open access: yesIEEE Access, 2020
In recent years, Convolutional neural networks (CNNs) have achieved start-of-art performance in the fault diagnosis field. If there is no available information on the unseen operating conditions, the model trained on the seen operating condition cannot ...
Yuantao Yang   +5 more
doaj   +1 more source

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