Results 111 to 120 of about 28,711 (337)

Miniature Robotic Swimmer with Precise 2D Motion Control via Acoustic Vortex‐Induced Propulsion

Advanced Science, EarlyView.
In this work, a miniature robotic swimmer achieves precise 2D motion using sound waves with customized 3D‐printed lenses. Localized acoustic vortices drive both translation and rotation of the swimmer without mechanical parts. This contactless approach offers a novel route to controlled micro‐scale movement, with promising applications in biomedical ...
Chadi Ellouzi, Nicholas Andrianto, Glen Vosgerichian, Farhood Aghdasi, Joshua Lloyd, Ali Zabihi, Chen Shen   +6 more
wiley   +1 more source

An Efficient Pipeline Wavefront Phase Recovery for the CAFADIS Camera for Extremely Large Telescopes

Sensors, 2009
In this paper we show a fast, specialized hardware implementation of the wavefront phase recovery algorithm using the CAFADIS camera. The CAFADIS camera is a new plenoptic sensor patented by the Universidad de La Laguna (Canary Islands, Spain ...
Eduardo Magdaleno, Manuel Rodríguez, José Manuel Rodríguez-Ramos   +2 more
doaj   +1 more source

Wave‐Partition‐Governed Dual‐Site Spallation in Single Crystals

Advanced Science, EarlyView.
Crystalline anisotropy shapes shock‐wave propagation and the resulting damage evolution in single crystals. Large‐scale molecular dynamics and damage modeling uncover a dual‐spallation mechanism driven by anisotropic elasticplastic wave separation, which mitigates damage accumulation.
Youlin Zhu, Sheng Qian, Lianfu Qiu, Jianian Hu, Guoqiang Luo, Qiang Shen, Qi Tong   +6 more
wiley   +1 more source

Accuracy characterization of Shack–Hartmann sensor with residual error removal in spherical wavefront calibration

Light: Advanced Manufacturing
The widely used Shack–Hartmann wavefront sensor (SHWFS) is a wavefront measurement system. Its measurement accuracy is limited by the reference wavefront used for calibration and also by various residual errors of the sensor itself.
Yi He, Mingdi Bao, Yiwei Chen, Hong Ye, Jinyu Fan, Guohua Shi   +5 more
doaj   +1 more source

POSS Polyimide Composite Sealed Triple‐Junction GaAs Thin‐Film Solar Cell for Long‐Term Low Earth Orbit Serve

Advanced Science, EarlyView.
Ultrathin oxide layer and ultraviolet absorbent are introduced into polyhedral oligomeric silsesquioxane (POSS) polyimide to improve the transmittance conservation and realize near zero mass loss against ultraviolet and atomic oxygen exposures. The POSS polyimide composite sealed triple‐junction GaAs thin‐film solar cell exhibits enhanced endurance of ...
Min Qian, Min Wu, Xiaoyang Xuan, Yang Gao   +3 more
wiley   +1 more source

Overview of focal plane wavefront sensors to correct for the Low Wind Effect on SUBARU/SCExAO [PDF]

, 2019
Sébastien Vievard, Steven P. Bos, F. Cassaing, A. Ceau, Olivier Guyon, Nemanja Jovanović, Christoph U. Keller, Julien Lozi, Frantz Martinache, Aurélie Montmerle-Bonnefois, Laurent M. Mugnier, Mamadou N’Diaye, Barnaby Norris, Ananya Sahoo, Jean-François Sauvage, Frans Snik, Michael J. Wilby, Alison Wong   +17 more
openalex   +2 more sources

Curvy Surface Reconstruction

Advanced Science, EarlyView.
This review introduces the concept of “general curvy surface reconstruction,” which incorporates both geometric and physical dimensions, representing an upgrade over conventional geometric reconstruction that focuses solely on spatial relationships. Particular emphasis is placed on the emerging opportunities enabled by advanced measurement techniques ...
Chen Shang, Haoyu Qi, Zhigang Wang, Keyu Meng, Zeye Liu, Zeng Meng, Yu Yang, Jianjun Wang, Shan Jiang   +8 more
wiley   +1 more source

Study of Point Scanning Detection Mechanisms for Vibration Signals with Wavefront Sensors

Photonics
Seismic wave laser remote sensing is extensively employed in seismic monitoring and resource exploitation. This work establishes a vibration signal point scanning detection system utilizing wavefront sensors, leveraging their high resolution, array ...
Quan Luo, Hongsheng Luo, Yiyou Fan, Guihan Wu, Haoming Chen, Yun Pan, Wei Jiang, Jinshan Su   +7 more
doaj   +1 more source

Assessing and mitigating alignment defects of the pyramid wavefront sensor: a translation insensitive control method [PDF]

, 2018
Vincent Déo, É. Gendron, G. Rousset, Fabrice Vidal, Tristan Buey, M. Cohen   +5 more
openalex   +1 more source

Numerical control matrix rotation for the LINC-NIRVANA Multi-Conjugate Adaptive Optics system

, 2010
LINC-NIRVANA will realize the interferometric imaging focal station of the Large Binocular Telescope. A double Layer Oriented multi-conjugate adaptive optics system assists the two arms of the interferometer, supplying high order wave-front correction ...
Arcidiacono, Carmelo, Bertram, Thomas, Briguglio, Runa, Busoni, Lorenzo, Esposito, Simone, Farinato, Jacopo, Fini, Luca, Pinna, Enrico, Puglisi, Alfio, Quiros-Pacheco, Fernando, Ragazzoni, Roberto, Riccardi, Armando, Xompero, Marco   +12 more
core   +1 more source