Orbit: A Unified Simulation Framework for Interactive Robot Learning Environments [PDF]
IEEE Robotics and Automation Letters, 2023 We present Orbit, a unified and modular framework for robot learning powered by Nvidia Isaac Sim. It offers a modular design to easily and efficiently create robotic environments with photo-realistic scenes and high-fidelity rigid and deformable body ...
Mayank Mittal +15 more
semanticscholar +1 more source
Roadmap of spin-orbit torques [PDF]
IEEE transactions on magnetics, 2021 Spin–orbit torque (SOT) is an emerging technology that enables the efficient manipulation of spintronic devices. The initial processes of interest in SOTs involved electric fields, spin–orbit coupling, conduction electron spins, and magnetization.
Qiming Shao +18 more
semanticscholar +1 more source
Extension of the sun-synchronous Orbit [PDF]
, 2010 Through careful consideration of the orbit perturbation force due to the oblate nature of the primary body a secular variation of the ascending node angle of a near-polar orbit can be induced without expulsion of propellant.
Bosquillon de Frescheville, Francois +3 more
core +4 more sources
Efficient conversion of orbital Hall current to spin current for spin-orbit torque switching [PDF]
Communications Physics, 2021 Spin Hall effect, an electric generation of spin current, allows for efficient control of magnetization. Recent theory revealed that orbital Hall effect creates orbital current, which can be much larger than spin-Hall-induced spin current.
Soogil Lee +13 more
semanticscholar +1 more source
Chiral control of quantum states in non-Hermitian spin–orbit-coupled fermions [PDF]
Nature Physics, 2021 Spin–orbit coupling is an essential mechanism underlying quantum phenomena such as the spin Hall effect and topological insulators1. It has been widely studied in well-isolated Hermitian systems, but much less is known about the role dissipation plays in
Ze-Jian Ren +6 more
semanticscholar +1 more source
Detection of the Schwarzschild precession in the orbit of the star S2 near the Galactic centre massive black hole [PDF]
Astronomy & Astrophysics, 2020 The star S2 orbiting the compact radio source Sgr A* is a precision probe of the gravitational field around the closest massive black hole (candidate). Over the last 2.7 decades we have monitored the star’s radial velocity and motion on the sky, mainly ...
R. Abuter +54 more
semanticscholar +1 more source
The Low Earth Orbit Satellite Population and Impacts of the SpaceX Starlink Constellation [PDF]
Astrophysical Journal, 2020 I discuss the current low Earth orbit artificial satellite population and show that the proposed “megaconstellation” of circa 12,000 Starlink Internet satellites would dominate the lower part of the Earth orbit, below 600 km, with a latitude-dependent ...
J. McDowell
semanticscholar +1 more source
Auricular cartilage versus donor sclera as a wrapping of hydroxyapatite orbital implants [PDF]
International Journal of Ophthalmology, 2021 AIM: To retrospectively compare postoperative outcomes after primary enucleation and placement of a hydroxyapatite (HA) implant without wrapping, wrapped with auricular cartilage or donor sclera.
Ying-Jie Ma +5 more
doaj +1 more source
Maximizing Spin-Orbit Torque Generated by the Spin Hall Effect of Pt [PDF]
, 2021 Efficient generation of spin-orbit torques is central for the exciting field of spin-orbitronics. Platinum, the archetypal spin Hall material, has the potential to be an outstanding provider for spin-orbit torques due to its giant spin Hall conductivity,
Li-Jun Zhu, D. Ralph, R. Buhrman
semanticscholar +1 more source
Optimization of satellite resource scheduling under regional target coverage conditions
Open Astronomy, 2022 This study presented a mathematical description of an arbitrary shape area, and after analyzing the characteristics of the near-polar orbital co-ground trajectory constellation that satisfies the revisit interval constraint, an optimization model of the ...
Liu Kaixi +5 more
doaj +1 more source