Results 81 to 90 of about 85,937 (304)

Casting Light on Degeneracies: A Comprehensive Study of Lightcurve Variations in Microlensing Events OGLE-2017-BLG-0103 and OGLE-2017-BLG-0192

open access: yesThe Astronomical Journal
This study investigates orbital parallax in gravitational microlensing events, focusing on OGLE-2017-BLG-0103 and OGLE-2017-BLG-0192. For events with timescales ≤60 days, a Jerk-Parallax degeneracy arises due to high Jerk velocity ( $\tilde{{v}_{j ...
Sarang Shah
doaj   +1 more source

MISR-GOES 3D Winds: Implications for Future LEO-GEO and LEO-LEO Winds

open access: yesRemote Sensing, 2018
Global wind observations are fundamental for studying weather and climate dynamics and for operational forecasting. Most wind measurements come from atmospheric motion vectors (AMVs) by tracking the displacement of cloud or water vapor features.
James L. Carr   +3 more
doaj   +1 more source

Nachtsicht ins All mit dem bloßen Auge: Sag mir, wie weit die Sterne steh'n

open access: yesPhysik in unserer Zeit, EarlyView.
Beim Blick in den Nachthimmel sehen wir ohne optische Hilfsmittel und abhängig von der lokalen Lichtverschmutzung viele Hundert bis maximal einige Tausend Sterne und auch einige Galaxien. Aber wie weit sind diese von uns entfernt? Und bis zu welchen maximalen Entfernungen können wir Objekte im Weltall mit dem bloßen Auge wahrnehmen?
Michael Vollmer
wiley   +1 more source

An investigation of visual cues used to create and support frames of reference and visual search tasks in desktop virtual environments [PDF]

open access: yes, 2002
Visual depth cues are combined to produce the essential depth and dimensionality of Desktop Virtual Environments (DVEs). This study discusses DVEs in terms of the visual depth cues that create and support perception of frames of references and ...
Cribbin, T, Macredie, RD, Morar, SS
core   +1 more source

A journey through chronic illness

open access: yesMedicine Anthropology Theory, 2019
n ...
Jerome W. Crowder, Winston P. Crowder
doaj   +1 more source

Parallax limitations in digital holography: a phase space approach

open access: yesLight: Advanced Manufacturing, 2022
The viewing direction in Digital Holography can be varied if different parts of a hologram are reconstructed. In this article parallax limitations are discussed using the phase space formalism.
Ulf Schnars, Claas Falldorf
doaj   +1 more source

Information Parallax

open access: yes, 2007
To effectively use and exchange information among AI systems, a formal specification of the representation of their shared domain of discourse—called an ontology—is indispensable. In this chapter we introduce a special kind of knowledge representation based on a dual view on the universe of discourse and show how it can be used in human activities such
Grootjen, F.A., Weide, T.P. van der
openaire   +2 more sources

The Gaia DR2 parallax zero-point: hierarchical modelling of red clump stars [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
The systematic offset of Gaia parallaxes has been widely reported with Gaia’s second data release, and it is expected to persist in future Gaia data.
V. Chan, J. Bovy
semanticscholar   +1 more source

Pulsed Laser Ablation in Liquid: Numerical Evaluation of Laser Fluence

open access: yesphysica status solidi (RRL) – Rapid Research Letters, EarlyView.
Pulsed laser ablation in liquid is a very powerful technique that allows to synthesize colloidal solution of nanoparticles (NPs) without waste. Herein, a computational approach that given the experimental parameters and draws the laser ray paths inside the experimental apparatus is developed, the effective fluence on the target surface is evaluated ...
Cristiano Lo Pò   +3 more
wiley   +1 more source

A comparison of the local spiral structure from Gaia DR2 and VLBI maser parallaxes

open access: yes, 2018
Context. The Gaia mission has released the second data set (Gaia DR2), which contains parallaxes and proper motions for a large number of massive, young stars. Aims.
Bian, S. B.   +10 more
core   +1 more source

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