Results 91 to 100 of about 51,915 (304)
The Influence of J2 on Formation Flying of Micro-Satellites in Low Near Equatorial Orbits
Journal of Advances in Information Technology, 2014 Taking into considerations the effect of the Earth’s oblateness parameters, particularly J2, the present work assess such influence on the formation flight of micro satellites in near equatorial low orbits. The modified Clohessy-Wiltshire equations
Harijono Djojodihardjo
doaj +1 more source
EOS Science Poster Series: AIR-Our Outer Atmosphere [PDF]
, 2007 This poster depicts how NASA scientists are working to understand the outer atmosphere (air). Satellite images, graphs, and pictures complement the fact-filled information.
core
Advanced Functional Materials, EarlyView.We present a fully printed aqueous zinc‐ion microbattery (ZnIB) enabled by graphene‐decorated zinc anode and printed MnO@NC cathode using sustainable aqueous‐based ink formulations. The printed 3D electrodes ensure uniform zinc deposition, low overpotential, and long‐term stability.
Nagaraju Goli +11 more
wiley +1 more source
FIRI - a Far-Infrared Interferometer
, 2007 Half of the energy ever emitted by stars and accreting objects comes to us in the FIR waveband and has yet to be properly explored. We propose a powerful Far-InfraRed Interferometer mission, FIRI, to carry out high-resolution imaging spectroscopy in the ...
A. Michelson +19 more
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Advanced Functional Materials, EarlyView.A synergistic electrolyte engineering strategy of employing ethyl acetate (EA) with vinylene carbonate (VC) as multifunctional additives is initially pioneered, making various as‐prepared high‐voltage wide‐temperature sodium batteries work well via the formation of a gradient and temperature‐robust interphase.
Huihua Li +6 more
wiley +1 more source
Formation Flying Control for Satellites: Anti-windup Based Approach [PDF]
, 2012 Control theory has significantly evolved in the field of the nonlinear control. However, the methods used in the aerospace industry lie usually on linear techniques applied to linearized models. The increasing requirements in terms of operational reliability and performance ask for the development of new control techniques more complex in order to meet
Boada, Josep +4 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.Bioactive conductive Ti3C2Tx‐Ce hydrogels with with scavenging ROS and alleviating neuronal mitochondrial dysfunction are exploited for SCI treatment. This functionality is attributed to interfacial activation modification of Ti3C2Tx with Ce3+ ions to in‐situ form Ce(OH)x‐mediated protective layer, which is beneficial to enabling stable intracellular ...
Weikang Wang +12 more
wiley +1 more source
Synchronized Position Hold, Engage, Reorient, Experimental Satellites (SPHERES) are bowling-ball sized satellites that provide a test bed for development and research into multi-body formation flying, multi-spacecraft control algorithms, and free-flying ...
Benavides, Jose Victor +3 more
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Advanced Functional Materials, EarlyView.We report phosphine‐oxide interlayers for wide‐bandgap perovskite solar cells, in which tuned P = O Lewis basicity enables selective passivation of buried NiOx/perovskite interfaces and introduces interfacial dipoles that strengthen the built‐in field.
JeeHee Hong +6 more
wiley +1 more source
SIMBOL-X: A Formation Flying Mission on HEO for Exploring the Universe [PDF]
SIMBOL-X is a high energy new generation telescope covering by a single instrument a continuous energy range starting at classical X-rays and extending to hard X-rays, i.e. from 0.5 to 80 keV.
Epenoy, R., Gamet, Philippe, Salcedo, C.
core +1 more source