Category
Topics in astrodynamics
Related publications (262)
Breaking of Internal Waves and Turbulent Dissipation in an Anticyclonic Mode Water Eddy
A four-month glider mission was analyzed to assess turbulent dissipation in an anticyclonic eddy at the western boundary of the subtropical North Atlantic. The eddy (radius ≈ 60 km) had a core of low potential vorticity between 100–450 m, with maximum radi ...
2020Novel corrector problems with exponential decay of the resonance error for numerical homogenization
Multiscale problems, such as modelling flows through porous media or predicting the mechanical properties of composite materials, are of great interest in many scientific areas. Analytical models describing these phenomena are rarely available, and one mus ...
EPFL2020Koopmans-Compliant Functionals and Potentials and Their Application to the GW100 Test Set
Nicola Marzari, Nicola Colonna, Ngoc Linh Nguyen, Andrea Ferretti
Koopmans-compliant (KC) functionals have been shown to provide accurate spectral properties through a generalized condition of piecewise linearity of the total energy as a function of the fractional addition/removal of an electron to/from any orbital. We a ...
AMER CHEMICAL SOC2019Are We Ready for Autonomous Drone Racing? The UZH-FPV Drone Racing Datase
Davide Scaramuzza, Titus Cieslewski
Despite impressive results in visual-inertial state estimation in recent years, high speed trajectories with six degree of freedom motion remain challenging for existing estimation algorithms. Aggressive trajectories feature large accelerations and rapid r ...
2019Barium and related stars, and their white-dwarf companions
Pierre North, Shreeya Sushil Shetye
Barium (Ba) dwarfs and CH subgiants are the less evolved analogues of Ba and CH giants. They are F- to G-type main-sequence stars polluted with heavy elements by their binary companions when the companion was on the asymptotic giant branch (AGB). This comp ...
EDP SCIENCES S A2019Learning Trajectory Distributions for Assisted Teleoperation and Path Planning
Several approaches have been proposed to assist humans in co-manipulation and teleoperation tasks given demonstrated trajectories. However, these approaches are not applicable when the demonstrations are suboptimal or when the generalization capabilities o ...
2019On the Dynamics of Magnetic Swimmers in Stokes Flow
In the past decade, the engineering community has conceived, manufactured and tested micro-swimmers, i.e. microscopic devices which can be steered in their intended environment. Foreseen applications range from microsurgery and targeted drug delivery to en ...
EPFL2019Reference-frames in vision: Contributions of attentional tracking to nonretinotopic perception in the Ternus-Pikler display
Michael Herzog, Marc Michael Lauffs, Oh-Hyeon Choung
Perception depends on reference frames. For example, the "true'' cycloidal motion trajectory of a reflector on a bike's wheel is invisible because we perceive the reflector motion relative to the bike's motion trajectory, which serves as a reference frame. ...
2019Trajectory Optimization for Legged Robots With Slipping Motions
The dynamics of legged systems are characterized by under-actuation, instability, and contact state switching. We present a trajectory optimization method for generating physically consistent motions under these conditions. By integrating a custom solver f ...
2019A microphotonic astrocomb
Tobias Kippenberg, Michael Wolfgang Geiselmann, Junqiu Liu, Tobias Herr, Miles Henry Anderson, Stefan Kundermann
Earth-like planets, dark energy and variability of fundamental physical constants can be discovered by observing wavelength shifts in the optical spectra of astronomical objects(1-5). These wavelength shifts are so tiny that exquisitely accurate and precis ...
NATURE PUBLISHING GROUP2019