Results 171 to 180 of about 3,220 (254)
Surgery and positive Bakry-Émery Ricci curvature. [PDF]
Reiser P, Tripaldi F.
europepmc +1 more source
Abstract Unexpectedly following launch, the Lunar Trailblazer mission experienced software anomalies that led it to orient solar panels away from the sun and lose communication with Earth. This paper describes efforts to determine the spacecraft state and attempt recovery of the mission's science at the Moon.
B. L. Ehlmann +28 more
wiley +1 more source
Image generator for tabular data based on non-Euclidean metrics for CNN-based classification. [PDF]
Lin YR, Wu HM.
europepmc +1 more source
Empirical Assessment of Storm‐Time Thermospheric Density Inversion Methods From LEO POD Data
Abstract Thermospheric mass density is one of the largest sources of operational uncertainty for spacecraft in low Earth orbit, particularly during geomagnetic storms. The growing population of Global Navigation Satellite System‐equipped satellites presents a data set of opportunity: precise orbit determination (POD) data streams can be used to ...
Charles Constant +4 more
wiley +1 more source
Riemannian L-systems: modelling growing forms in curved spaces. [PDF]
Godin C, Boudon F.
europepmc +1 more source
Abstract Satellites such as the European Space Agency's Sentinel‐1 constellation allow for the creation of unprecedented volumes of Interferometric Synthetic Aperture RaDAR data that contains both deformation and atmospheric signals. Correction methods have been developed to reduce these atmospheric signals, but they do not generally perform well on ...
M. Gaddes, A. Hooper, S. Ebmeier
wiley +1 more source
Evolutions of partner-ruled surfaces with simultaneous inextensibility conditions. [PDF]
Eren K, Ersoy S, Khan MNI.
europepmc +1 more source
Abstract Normal faults in southern Tibet have long suffered from limited ground‐based seismic and geodetic observations, constraining our understanding of both interseismic and coseismic processes and their interactions. The 2025 Mw 7.1 Dingri earthquake provides an opportunity to address these gaps.
Haicheng Xiong +9 more
wiley +1 more source
Comparison theorems on H-type sub-Riemannian manifolds. [PDF]
Baudoin F +3 more
europepmc +1 more source
Abstract Fault slip occurs in both seismic and aseismic styles with spatial variability across scales, yet non‐unique source inference limits our ability to resolve slip complexity and dynamics. Here we evaluate the effect of spatial smoothing regularization in Bayesian frameworks by comparing an unregularized (BUR) approach that samples distributed ...
Xiong Zhao, Junle Jiang
wiley +1 more source

