Results 51 to 60 of about 81,210 (254)

Hybrid Continuum Robot Designs and Architectures for Healthcare Applications

open access: yesAdvanced Robotics Research, EarlyView.
Hybrid continuum robots represent an emerging class of flexible manipulators that blend materials, structures, and actuation concepts from the established fields of soft and continuum robotics. This review introduces an accessible framework to distinguish key hybridization approaches, surveys current designs aimed at complex clinical applications, and ...
Burak Ozdemir   +4 more
wiley   +1 more source

The TANDEM Project as a Pilot Case for Wide-field Telescope Arrays

open access: yesThe Astronomical Journal
We give here an account of the Telescope Array eNabling DEbris Monitoring (TANDEM) project, an innovative concept aimed at flanking, on a shared piggyback mount, the main G. D.
A. Buzzoni   +13 more
doaj   +1 more source

Robotic observation pipeline for small bodies in the solar system based on open-source software and commercially available telescope hardware

open access: yesFrontiers in Astronomy and Space Sciences, 2022
The observation of small bodies in the Space Environment is an ongoing important task in astronomy. While nowadays new objects are mostly detected in larger sky surveys, several follow-up observations are usually needed for each object to improve the ...
Tobias Hoffmann   +12 more
doaj   +1 more source

A purely reflective large wide-field telescope [PDF]

open access: yesBulletin of the Crimean Astrophysical Observatory, 2008
Two versions of a fast, purely reflective Paul-Baker type telescope are discussed, each with an 8.4-m aperture, 3 deg diameter flat field and f/1.25 focal ratio. The first version is based on a common, even asphere type of surface with zero conic constant.
openaire   +2 more sources

Solid Harmonic Wavelet Bispectrum for Image Analysis

open access: yesAdvanced Science, EarlyView.
The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown   +3 more
wiley   +1 more source

Bright X-ray bursts from 1E 1724-3045 in Terzan 2 [PDF]

open access: yes, 2000
During about 3 years wide field monitoring of the Galactic Center region by the WFC telescopes on board the BeppoSAX satellite, a total of 14 type-I X-ray bursts were detected from the burster 1E 1724-3045 located in the globular cluster Terzan 2.
Bazzano, A.   +6 more
core   +2 more sources

Study of Free‐Space Optical Quantum Network: Review and Prospectives

open access: yesAdvanced Science, EarlyView.
Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley   +1 more source

Zwicky Transient Facility and Globular Clusters: The gr-band Period–Luminosity Relations for Mira Variables at Maximum Light and their Applications to Local Galaxies

open access: yesThe Astronomical Journal, 2023
Based on 14 Miras located in seven globular clusters, we derived the first gr -band period–luminosity (PL) at maximum light for the large-amplitude Mira variables using the multiyear light-curve data collected from the Zwicky Transient Facility (ZTF ...
C.-C. Ngeow   +5 more
doaj   +1 more source

Seeking particle dark matter in the TeV sky

open access: yes, 2011
Under the assumption that dark matter is made of new particles, annihilations of those are required to reproduce the correct dark matter abundance in the Universe.
Brun, Pierre
core   +1 more source

Wide-Field Infrared Survey Telescope (WFIRST): optical telescope assembly (OTA) status [PDF]

open access: yesSpace Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 2018
The WFIRST Mission is the next large astrophysical observatory for NASA after the James Webb Space Telescope and is the top priority mission from the 2010 National Academy of Sciences' decadal survey. The WFIRST OTA includes the inherited primary and secondary mirrors with precision metering structures that are to be integrated to new mirror assemblies
Perry Voyer   +12 more
openaire   +1 more source

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