Results 71 to 80 of about 2,119 (200)

Design and Optimization of a Polar Satellite Mission to Complement the Copernicus System

open access: yesIEEE Access, 2018
The space industry is currently witnessing two concurrent trends: the increased modularity and miniaturization of technologies and the deployment of constellations of distributed satellite systems.
Eduard Alarcon   +28 more
doaj   +1 more source

A Review of Multi‐Object Tracking in Recent Times

open access: yesIET Computer Vision, Volume 19, Issue 1, January/December 2025.
This paper discusses many recent deep‐learning MOT methods. Moreover, to highlight their contributions, these methods are categorised into four main groups: detection‐based, SOT‐based, and segmentation‐based methods according to the integrated core technologies.
Suya Li, Hengyi Ren, Xin Xie, Ying Cao
wiley   +1 more source

Radiometric Top-of-Atmosphere Reflectance Consistency Assessment for Landsat 8/OLI, Sentinel-2/MSI, PROBA-V, and DEIMOS-1 over Libya-4 and RadCalNet Calibration Sites

open access: yesRemote Sensing, 2019
There is a clear trend toward the use of higher spatial resolution satellite sensors. Due to the low revisit time of these sensors and frequent cloud coverage, many applications require data from different sensors to be combined in order to have more ...
Sindy Sterckx, Erwin Wolters
doaj   +1 more source

Multilayer Optics for Synchrotron Applications

open access: yesAdvanced Materials Technologies, Volume 9, Issue 18, September 18, 2024.
Multilayer optics play a significant role in the present and have substantial potential for the future synchrotron facilities due to their ability to generate constructive interference of both soft to hard X‐rays. This review provides a comprehensive overview of synchrotron multilayer optics, from their upstream theoretical design to their practical ...
Wadwan Singhapong   +4 more
wiley   +1 more source

Temperature Induced Reversible Switching of the Magnetic Anisotropy in a Neodymium Complex Adsorbed on Graphite

open access: yesSmall, Volume 20, Issue 38, September 19, 2024.
Nd(trensal) is a mononuclear lanthanide complex which undergoes a switch of the magnetic anisotropy from easy‐axis to easy‐plane modifying the temperature. When deposited as an ultra‐thin film over highly ordered pyrolityc graphtie this phenomenon is retained.
Leonardo Tacconi   +6 more
wiley   +1 more source

Alteration in the Raman spectra of characteristic rock‐forming silicate mixtures due to micrometeorite bombardment

open access: yesJournal of Raman Spectroscopy, Volume 55, Issue 8, Page 901-913, August 2024.
Space weathering is almost vanishing in the rock‐forming minerals with simple chemistry while causing complete amorphization of minerals with relatively low melting enthalpy. Raman spectroscopy detects correlations between the induced luminescence and the alteration effects. Raman‐inactive ablation products, such as metallic nanoparticles and volatiles,
Iris Weber   +3 more
wiley   +1 more source

Marte, Fobos y Deimos

open access: yes, 2014
Conceptos básicos de la astronomíaEl video muestra a Marte y sus dos satélites Fobos y Deimos. Marte es el cuarto planeta desde el Sol y es posible verlo con un pequeño telescopio.
Hernanz Martos, Maria Carmen
core  

Design of Quasi-Satellite Science Orbits at Deimos

open access: yes, 2020
In order to answer the most pressing scientific questions about the two Martian moons, Phobos and Deimos, new remote sensing observations are required. The best way to obtain global high resolution observations of Phobos and Deimos is through dedicated ...
Thompson, Michael R
core  

Accretion of Phobos and Deimos in an extended debris disc stirred by transient moons

open access: yes, 2016
International audiencePhobos and Deimos, the two small satellites of Mars, are thought either to be asteroids captured by the planet or to have formed in a disc of debris surrounding Mars following a giant impact.
Trinh, Antony   +16 more
core   +1 more source

Fishing areas characterisation using the SIMOcean platform

open access: yesAquatic Living Resources, 2017
In this study, the relationships between sea surface temperature (SST), chlorophyll-a (Chl-a) concentration and catch locations of sardine (Sardina pilchardus) and Atlantic chub mackerel (Scomber colias) were explored using satellite-derived SST and Chl ...
Lamas Luisa   +6 more
doaj   +1 more source

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