Results 81 to 90 of about 5,111 (331)

Surfactants as a Tool for Coupling Light Into Hydrodynamic Flow: The Influence of Surfactant Hydrophobicity and Head Polarity

Advanced Materials Interfaces, EarlyView.
Reversible light‐induced gradients at solid–liquid interfaces enable controllable interfacial transport via light‐driven diffusioosmosis. We demonstrate directed particle manipulation based on dynamically generated concentration gradients. The mechanism is broadly applicable to cationic, anionic, and non‐ionic surfactants with varying hydrophobicity ...
Maren Umlandt, David Feldmann, Nino Lomadze, Svetlana Santer   +3 more
wiley   +1 more source

Astrometric Calibration of MagAO-X with Updated Solutions for HD 165054 Field Stars

The Astronomical Journal
MagAO-X is a recently commissioned extreme adaptive optics instrument for the Magellan Clay 6.5 m telescope at Las Campanas Observatory in Chile. MagAO-X had first light in 2019 and subsequent commissioning observations in 2022 and 2023.
Joseph D. Long, Logan Pearce, Sebastiaan Y. Haffert, Jared R. Males, Laird M. Close, Olivier Guyon, Warren B. Foster, Kyle Van Gorkom, Alexander D. Hedglen, Maggie Y. Kautz, Jay K. Kueny, Jialin Li, Jennifer Lumbres, Eden A. McEwen, Avalon L. McLeod, Lauren Schatz   +15 more
doaj   +1 more source

The Influence of Mesoscale Particle Structure on the Electrode Degradation and Resultant Electrochemistry of Lithium Ion Cells With Nickel Rich Lithium Nickel Manganese Cobalt Oxide Positive Electrodes

Advanced Materials Technologies, EarlyView.
Milled polycrystalline NMC811 cathode (MPC NMC) with smaller secondary particle and higher surface area had 1) greater cathode tortuosity, 2) reduced surface Ni on the cycled MPC cathodes consistent with surface reconstruction, and 3) increased Ni deposition from cathode‐anode crosstalk, manifesting in lower functional capacity and higher impedance ...
Edelmy J. Marin Bernardez, Andrew Nicoll, David J. Arnot, Armando Rodriguez Campos, Patrick J. Barry, Marie F. Millares, Cynthia Huang, Melissa A. Guercio, Grace K. Dono, Alexis Pace, Xianghui Xiao, Cherno Jaye, Conan Weiland, Jianming Bai, Hui Zhong, Michael Drakopoulos, Zhong Zhong, Nghia T. Vo, Xiao Tong, Esther S. Takeuchi, Amy C. Marschilok, Shan Yan, Kenneth J. Takeuchi   +22 more
wiley   +1 more source

Status of MagAO and review of astronomical science with visible light adaptive optics [PDF]

, 2018
Laird M. Close, Jared R. Males, Katie M. Morzinski, Simone Espositob, Armando Riccardi, Runa Briguglio, Follette, Kate B., Ya-Lin Wu, Enrico Pinna, Alfio Puglisi, Marco Xompero, Fernando Quirosd, Philip M. Hinz   +12 more
openalex   +2 more sources

The Role of Self-gravity in Debris-disk Warp Formation: The Case of HD 110058

The Astrophysical Journal Letters
We investigate the crucial role of self-gravity in the formation of warps in debris disks, focusing on the HD 110058 system as an example. Using advanced graphical-processing-unit-accelerated N -body simulations, we model the gravitational dynamics of a ...
Gang Zhao, Su Wang, Jiangpei Dou
doaj   +1 more source

Linking Device Performance to Nanoscale Photoactivation of Grain Boundaries in 2D Hybrid Halide Perovskites

Advanced Materials Technologies, EarlyView.
The opto‐electronic response of polycrystalline (PEA)2PbBr4 thin films is investigated by correlating macroscopic photodetector performance with nanoscale mapping techniques. Grain boundary density is systematically tuned through crystallization control and linked to device responsivity.
Camilla Bordoni, Lorenzo Calcaterra, Andrea Ciavatti, Silvia Milita, Valentina Bonino, Lorenzo Margotti, Sara Cepić, Marisa Di Sabatino, Federico Boscherini, Daniela Cavalcoli, Beatrice Fraboni   +10 more
wiley   +1 more source

A real-time simulation facility for astronomical adaptive optics [PDF]

, 2014
In this paper we introduce the concept of real-time hardware-in-the-loop simulation for astronomical adaptive optics, and present the case for the requirement for such a facility.
Basden, A.G.
core   +2 more sources

Engineering Energy Harvesting Pathways in Mn‐Yb‐Doped Perovskite Nanocrystals

Advanced Optical Materials, EarlyView.
Mn‐Yb codoping in metal halide perovskite nanocrystals establishes dual‐channel energy reservoirs that capture charge carriers and drip‐feed them back to the host on millisecond timescales. This synergistic recycling mechanism overcomes prompt nanosecond recombination limitations, enabling an eight‐fold enhancement in photocatalytic CO2​ reduction ...
Manoj Sharma, Chang Cao, Pria Ramkissoon, Hanchen Li, Nadine J. Schrenker, Naufan Nurrosyid, Anthony S. R. Chesman, Junhong Yu, Joanne Etheridge, Trevor A. Smith, Akshat Tanksale, Jacek. J. Jasieniak   +11 more
wiley   +1 more source

Basic Optics for the Astronomical Sciences [PDF]

, 2012
This text was written to provide students of astronomy and engineers an understanding of optical science - the study of the generation, propagation, control, and measurement of optical radiation - as it applies to telescopes and instruments for ...
Breckinridge, James, Breckinridge, James B.   +1 more
core  

A Compact, Ultra-high-resolution Virtually Imaged Phased Array Spectrograph for Solar Spectroscopic Observations: Astrocomb Characterization and First Light

The Astronomical Journal
We present a compact, high-spectral-resolution prototype spectrograph based on a Virtually Imaged Phased Array (VIPA), which is designed for solar spectral observations. This fiber-fed instrument has a size of only 53 × 20 × 18 cm ^3 .
Yutao Wang, Xiaoming Zhu, Xiaoli Yan, P. F. Chen, Huiqi Ye, Dong Xiao, Jinping He   +6 more
doaj   +1 more source