Results 1 to 10 of about 155,102 (310)
AerospaceThis article presents a trajectory design problem concerning the exploration of potentially hazardous near-Earth asteroids (PHAs) with reusable probes from cislunar space. A total of 20 probes, making round trips departing from and returning to a service
Chao Peng, Renyong Zhang, Yang Gao
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Black holes as probes of moduli space geometry
Journal of High Energy Physics, 2023 We argue that supersymmetric BPS states can act as efficient finite energy probes of the moduli space geometry thanks to the attractor mechanism. We focus on 4d N $$ \mathcal{N} $$ = 2 compactifications and capture aspects of the effective field theory ...
Matilda Delgado +2 more
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Compression of space for low visibility probes [PDF]
Frontiers in Systems Neuroscience, 2016 Stimuli briefly flashed just before a saccade are perceived closer to the saccade target, a phenomenon known as perisaccadic compression of space (Ross, Morrone, & Burr, 1997). More recently, we have demonstrated that brief probes are attracted towards a
Sabine eBorn +5 more
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Russian Space Probes: Scientific Discoveries and Future Missions
, 2011 The Soviet Union began the exploration of space with the launch of Sputnik in 1957, well over 50 years ago, and sent the first probes to the Moon, Mars, and Venus. Less well known is what these probes actually found out.
Zakutnyaya, Olga +3 more
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Probing Olfaction in Space and Time [PDF]
Neuron, 2020 In this issue, Gill et al. apply holographic optogenetic stimulation in the olfactory bulb to control select neuronal ensembles in 3D. This approach allows them to dissociate the contribution of temporal spike features and spike rate to stimulus detection.
Rabell, Jose Esquivelzeta +1 more
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Frontiers in Astronomy and Space Sciences, 2022 SQUARE2 is the acronym for Spacecraft in QUAdrature for solaR Exploration, and is a mission concept for multi-instrumental two-point observations of the Sun and its environment. It stems from the need to have two probes that are systematically in orbital
D. Telloni
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Reflection from Inclined, Relativistic Light Sails
The Astronomical Journal, 2023 We present a new formula for relativistic reflection of solar radiation from a light sail moving at a velocity v inclined at an arbitrary angle θ , using an elementary two-body analysis. The formula is shown to reduce to the formulas of Euclid, Einstein,
Refath Bari
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Probing BERT in Hyperbolic Spaces
CoRR, 2021 Recently, a variety of probing tasks are proposed to discover linguistic properties learned in contextualized word embeddings. Many of these works implicitly assume these embeddings lay in certain metric spaces, typically the Euclidean space. This work considers a family of geometrically special spaces, the hyperbolic spaces, that exhibit better ...
Boli Chen +6 more
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Dust Outburst Dynamics and Hazard Assessment for Close Spacecraft–Comet Encounters
The Planetary Science Journal, 2021 Using the gas drag by sublimating cometary surface ices for the acceleration of dust particles and deceleration by the gravity field of the nucleus combined with basic laws of mechanics, the sizes, velocities, and number densities of escaping particles ...
Uwe Fink +6 more
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Applicability of Taylor's hypothesis in thermally driven turbulence [PDF]
Royal Society Open Science, 2018 In this paper, we show that, in the presence of large-scale circulation (LSC), Taylor’s hypothesis can be invoked to deduce the energy spectrum in thermal convection using real-space probes, a popular experimental tool. We perform numerical simulation of
Abhishek Kumar, Mahendra K. Verma
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