Results 41 to 50 of about 176,448 (289)

A broadband study of FRB 20240114A with the Effelsberg 100-m radio telescope

Astronomy & Astrophysics
Context. FRB 20240114A is a hyperactive repeating fast radio burst (FRB) source discovered by the CHIME/FRB Collaboration in January 2024. The source has been followed up by numerous radio telescopes, including MeerKAT, uGMRT, and FAST, and has been ...
Limaye P., Spitler L. G., Manaswini N., Benáček J., Eppel F., Kadler M., Nicotera L., Wongphechauxsorn J.   +7 more
doaj   +1 more source

Morphology‐Controlled Silica Nanoparticle Coatings for Transparent Radiative Cooling

Advanced Materials Interfaces, EarlyView.
Transparent radiative cooling coatings are achieved by immobilizing solid and hollow silica spheres on glass. Particle morphology within sub‐monolayer coatings is shown to govern the trade‐off between visible and atmospheric window reflectance. Hollow‐sphere structures enable reduced thermal emission losses while preserving transparency, highlighting ...
Jefferson A. S. Lam, Kishin Matsumori, Maximillian Theis, Alexander Berger, Nicole Böller, Qimeng Song, Matthieu Gresil, Jacek J. Jasieniak, Markus Retsch   +8 more
wiley   +1 more source

Beam Maps of the Canadian Hydrogen Intensity Mapping Experiment (CHIME) Measured With a Drone

IEEE Open Journal of Antennas and Propagation
We present beam measurements of the CHIME telescope using a radio calibration source deployed on a drone payload. During test flights, the pulsing calibration source and the telescope were synchronized to GPS time, enabling in-situ background subtraction
Will Tyndall, Alex Reda, J. Richard Shaw, Kevin Bandura, Arnab Chakraborty, Mark Halpern, Maile Harris, Emily Kuhn, Joshua Maceachern, Juan Mena-Parra, Laura B. Newburgh, Anna Ordog, Tristan Pinsonneault-Marotte, Anna Rose Polish, Ben Saliwanchik, Pranav Sanghavi, Seth R. Siegel, Audrey Whitmer, Dallas Wulf   +18 more
doaj   +1 more source

VERITAS Distant Laser Calibration and Atmospheric Monitoring

, 2008
As a calibrated laser pulse propagates through the atmosphere, the intensity of the Rayleigh scattered light arriving at the VERITAS telescopes can be calculated precisely. This allows for absolute calibration of imaging atmospheric Cherenkov telescopes (
C. M. Hui, Felix A. Aharonian, Frank Rieger, null null, Werner Hofmann   +4 more
core   +1 more source

From Rigid to Soft Robotic Approaches for Neuroendoscopy

Advanced Robotics Research, EarlyView.
Robotic assistance has had minimal impact on deep intraventricular surgeries, where small‐scale, precision, and reduced invasiveness can contribute to improved patient outcomes. Emerging technologies in rigid, soft, and hybrid robotics are reviewed to identify the most promising mechanisms for deep brain navigation in addition to an attempt to identify
Kieran Gilday, Irena Zubak, Andreas Raabe, Josie Hughes   +3 more
wiley   +1 more source

LBT Italia: Current Achievements and Future Directions

Instruments
The Large Binocular Telescope (LBT) is a world-leading astronomical observatory, where the Italian partnership has played an important role in increasing the telescope’s productivity, both through an optimized observing strategy and through peer-reviewed
Silvia Tosi, Ester Marini, Felice Cusano, Andrea Rossi, Roberto Speziali, Roberta Carini   +5 more
doaj   +1 more source

First AMBER/VLTI observations of hot massive stars [PDF]

, 2005
AMBER is the first near infrared focal instrument of the VLTI. It combines three telescopes and produces spectrally resolved interferometric measures. This paper discusses some preliminary results of the first scientific observations of AMBER with three ...
Accardo, M., Antonelli, P., Beckmann, U., Behrend, J., Bonhomme, S., Bonneau, D., Bresson, Y., Busoni, S., Chelli, A., Chesneau, O., Clausse, J. M., Coarer, E. Le, Delboulbe, A., Driebe, Th., Dugué, M., Duvert, G., Feautrier, Ph., Ferruzi, D., Foy, Renaud, Fraix-Burnet, D.,, Gennari, S., Gluck, L., Heininger, M., Hofmann, K. H., Isella, A., Kern, P., Kraus, S., Lagarde, S., Lisi, F., Malbet, F., Marconi, A., Mathias, Ph., Meilland, A., Millour, F., Monin, J.-L., Mourard, D., Nussbaum, E., Ohnaka, K., Perraut, K., Petrov, R. G., Puget, P., Robbe-Dubois, S., Roussel, A., Salinari, P., Schertl, D., Stee, Ph., Tatulli, E., Testi, L., Vannier, M., Weigelt, G., Zins, G.   +50 more
core   +3 more sources

Hybrid Continuum Robot Designs and Architectures for Healthcare Applications

Advanced 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, Muhammad A. Khalid, Manish Chauhan, Pietro Valdastri, James H. Chandler   +4 more
wiley   +1 more source

Neutrino Mixing and Neutrino Telescopes [PDF]

, 2006
Measuring flux ratios of ultra-high energy neutrinos is an alternative method to determine the neutrino mixing angles and the CP phase delta. We conduct a systematic analysis of the neutrino mixing probabilities and of various flux ratios measurable at ...
, Akhmedov E K, Aslanides E (ANTARES Collaboration), Bhattacharjee P Gupta N, Blondel A, Choubey S, DeYoung T Razzaque S Cowen D F, Fuki K Yasue M, Fukuyama T Nishiura H, Ghosal A, Grimus W, Grimus W Lavoura L, He X G Zee A, Majumdar D Ghosal A, Maltoni M, Mena O Mocioiu I Razzaque S, Minakata H, Mohapatra R N, Mohapatra R N, Mohapatra R N, Mohapatra R N Smirnov A Y, Pontecorvo B, Pontecorvo B, Pontecorvo B, Pontecorvo B, Schwetz T, Strumia A Vissani F, Werner Rodejohann   +27 more
core   +3 more sources

Solid Harmonic Wavelet Bispectrum for Image Analysis

Advanced 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, Mathilda Avirett‐Mackenzie, Carolin Villforth, Georgios Exarchakis   +3 more
wiley   +1 more source