Results 31 to 40 of about 14,014 (297)
ZY3-02 Laser Altimeter Footprint Geolocation Prediction
Sensors, 2017 Successfully launched on 30 May 2016, ZY3-02 is the first Chinese surveying and mapping satellite equipped with a lightweight laser altimeter. Calibration is necessary before the laser altimeter becomes operational. Laser footprint location prediction is
Junfeng Xie +8 more
doaj +1 more source
Remote Sensing, 2022 The autonomous orbit determination of the navigation constellation uses only bidirectional ranging data of the inter-satellite link for data processing.
Wei Zhou +5 more
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Magnetic field at geosynchronous orbit during high-speed stream-driven storms: Connections to the solar wind, the plasma sheet, and the outer electron radiation belt [PDF]
, 2010 Superposed-epoch analysis is performed on magnetic field measurements from five GOES spacecraft in geosynchronous orbit during 63 high-speed stream-driven storms in 1995–2005. The field strength and the field stretching angle are examined as functions of
Joseph E. Borovsky +3 more
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A Method to Determine BeiDou GEO/IGSO Orbital Maneuver Time Periods
Sensors, 2019 Because there are different types of BeiDou constellations with participating geostationary orbit (GEO) and inclined geosynchronous orbit (IGSO) satellites, the maneuvering frequency of BeiDou satellites is higher than that of other navigation systems ...
Zhiwei Qin +7 more
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Reduction of Space Debris Collision Prediction Uncertainty Based on Q-Sat Precise Orbit
Space: Science & Technology, 2023 Collision probability is employed for evaluating whether there will be a dangerous encounter between 2 space objects. The fidelity of the collision probability mainly depends on the accuracies of orbit prediction and covariance prediction for the space ...
Huang Pu +3 more
doaj +1 more source
Journal of Chemical Theory and Computation, 2022 Leveraging ab initio data at scale has enabled the development of machine learning models capable of extremely accurate and fast molecular property prediction. A central paradigm of many previous works focuses on generating predictions for only a fixed set of properties.
Kirill Shmilovich +5 more
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Prediction of Orbital Ordering in Single-Layered Ruthenates [PDF]
Physical Review Letters, 2001 The key role of the orbital degree of freedom to understand the magnetic properties of layered ruthenates is here discussed. In the G-type antiferromagnetic phase of Ca$_2$RuO$_4$, recent X-ray experiments reported the presence of 0.5 hole per site in the $d_{xy}$ orbital, while the $d_{\rm yz}$ and $d_{zx}$ orbitals contain 1.5 holes. This unexpected $
Hotta, Takashi, Dagotto, Elbio
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Fulde-Ferrell pairing instability of a Rashba spin-orbit-coupled Fermi gas [PDF]
, 2013 We theoretically analyze the pairing instability of a three-dimensional ultracold atomic Fermi gas towards a Fulde-Ferrell superfluid, in the presence of Rashba spin-orbit coupling and in-plane Zeeman field. We use the standard Thouless criterion for the
Xiaji Liu (18925048)
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Satellite Orbit Prediction Using Big Data and Soft Computing Techniques to Avoid Space Collisions
Mathematics, 2021 The number of satellites and debris in space is dangerously increasing through the years. For that reason, it is mandatory to design techniques to approach the position of a given object at a given time.
Cristina Puente +3 more
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Generating Feasible Trajectories for Autonomous On-Orbit Grasping of Spinning Debris in a Useful Time [PDF]
, 2013 The grasping and stabilization of a spinning, noncooperative target satellite by means of a free-flying robot is addressed. A method for computing feasible robot trajectories for grasping a target with known geometry in a useful time is presented ...
Hirzinger, Gerd +3 more
core +1 more source