Results 41 to 50 of about 3,872 (213)

Mid‐Infrared Integrated Photonics: Material Platforms and Emerging Applications

Laser &Photonics Reviews, EarlyView.
Mid‐infrared (MIR) integrated photonics enables advanced chemical and biological sensing through the unique absorption features of molecules in the 2–20 µm range. This review highlights recent material advances such as chalcogenide glasses, silicon, and graphene and explores MIR applications in environmental monitoring, medical diagnostics ...
Muhammad Ali Butt, Daniel Pastor Abellán, Ryszard Piramidowicz   +2 more
wiley   +1 more source

Mikrometeorite und ihr Ursprung im Sonnensystem: Außerirdischer Staub zum Anfassen

Physik in unserer Zeit, EarlyView.
Mit einer Größe, die der Dicke eines Haares entspricht, sind Mikrometeorite kaum sichtbar für das bloße Auge. Dennoch werden sie seit etwa 150 Jahren gesammelt, und seit wenigen Jahren sogar auf unseren Hausdächern. Als Kostproben von Asteroiden oder Kometen stellen sie wertvolle Boten unseres Sonnensystems dar.
Jenny Feige
wiley   +1 more source

Electrostatic Dust Analyzer for Dust Transport Measurements on the Lunar Surface

The Planetary Science Journal
Lunar dust charging and transport is a more than five-decade-old problem. A high-fidelity and flight-qualified Electrostatic Dust Analyzer (EDA) has been developed to measure the charge, velocity, mass (size), and flux of electrostatically lofted dust ...
X. Wang, M. Horanyi, C. Fisher, L. Eberwein, J. Deca, S. Knappmiller, D. Hansen, Z. Levin, R. Wing, D. Summers, W. Cole, P. Buedel, J. Drouet, S. Tucker, I. Garrick-Bethell   +14 more
doaj   +1 more source

Electromagnetic scattering by a polydispersion of small charged cosmic dust particles

Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011
Some recent studies on extended red emissions suggest the presence of very small dust particles in the Universe. The sizes of these particles vary from 1 nm to some tens of nanometers, thus situating them deeply in the Rayleigh region if computations are
M. Kocifaj, J. Klavcka, G. Videen
doaj   +1 more source

Illuminating the Dark Side of Cosmic Star Formation. II. A Second Date with RS-NIRdark Galaxies in COSMOS

The Astrophysical Journal, 2023
About 12 billion years ago, the Universe was first experiencing light again after the dark ages, and galaxies filled the environment with stars, metals, and dust. How efficient was this process? How fast did these primordial galaxies form stars and dust?
Meriem Behiri, Margherita Talia, Andrea Cimatti, Andrea Lapi, Marcella Massardi, Andrea Enia, Cristian Vignali, Matthieu Bethermin, Andreas Faisst, Fabrizio Gentile, Marika Giulietti, Carlotta Gruppioni, Francesca Pozzi, Vernesa Smolçić, Gianni Zamorani   +14 more
doaj   +1 more source

Direct measurement of bidirectional turbulent fluxes of atmospheric cluster ions

Quarterly Journal of the Royal Meteorological Society, EarlyView.
First direct eddy covariance measurements of vertical turbulent fluxes of atmospheric cluster ions are presented. The net turbulent flux was mostly positive for negative cluster ions (net emission of negative ions) and mostly negative for positive cluster ions (net deposition of positive ions).
Luzie Kamecke, Anke C. Nölscher, Andreas Held   +2 more
wiley   +1 more source

Cosmic Sands: The Origin of Dusty, Star-forming Galaxies in the Epoch of Reionization

The Astrophysical Journal, 2023
We present the Cosmic Sands suite of cosmological zoom-in simulations based on the simba galaxy formation model in order to study the buildup of the first massive and dusty galaxies in the early universe.
Sidney Lower, Desika Narayanan, Qi Li, Romeel Davé   +3 more
doaj   +1 more source

Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions

Journal of Field Robotics, EarlyView.
ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos, Steven Kay, Julia Wajoras, Robert Field, Evridiki V. Ntagiou, Fakher Mohammad, Yang Gao   +6 more
wiley   +1 more source

Responsive liquid metal materials towards unstructured environment

Responsive Materials, EarlyView.
Room‐temperature liquid metals integrate conductivity, deformability, and interfacial dynamics, enabling robust performance in unstructured environments. This review highlights key properties, requirements, and applications across in vivo, underwater, natural, space, and radiation settings, with advances in sensing, actuation, thermal regulation, and ...
Bo Yuan, Huaitong Song, Kaiyuan Xiang, Shili Tang, Cailin Liu, Hongzhang Wang   +5 more
wiley   +1 more source

Tracing the History of Obscured Star Formation with the SIMBA Cosmological Galaxy Evolution Simulation

The Astrophysical Journal
We explore the cosmic evolution of the fraction of dust-obscured star formation predicted by the simba cosmological hydrodynamic simulations featuring an on-the-fly model for dust formation, evolution, and destruction.
Dhruv T. Zimmerman, Desika Narayanan, Katherine E. Whitaker, Romeel Davé   +3 more
doaj   +1 more source