Results 51 to 60 of about 21,242 (251)

TacScope: A Miniaturized Vision‐Based Tactile Sensor for Surgical Applications

Advanced Robotics Research, EarlyView.
TacScope is a compact, vision‐based tactile sensor designed for robot‐assisted surgery. By leveraging a curved elastomer surface with pressure‐sensitive particle redistribution, it captures high‐resolution 3D tactile feedback. TacScope enables accurate tumor detection and shape classification beneath soft tissue phantoms, offering a scalable, low‐cost ...
Md Rakibul Islam Prince, Sheeraz Athar, Pokuang Zhou, Yu She   +3 more
wiley   +1 more source

Breaking Boundaries: A Universal Wavefront Reconstruction Approach for High-resolution Solar Imaging

The Astrophysical Journal Letters
This Letter proposes a universal wavefront reconstruction approach based on a coupled data set and neural network, aiming to overcome the limitations of current algorithms in terms of universality and wavefront sensing accuracy for variable imaging ...
Xinlan Ge, Licheng Zhu, Zeyu Gao, Shiqing Ma, Ao Li, Shuai Wang, Ping Yang   +6 more
doaj   +1 more source

Time-reversed optical focusing through scattering media by digital full phase and amplitude recovery using a single phase-only SLM [PDF]

Journal of Innovative Optical Health Sciences, 2015
Focusing light though scattering media beyond the ballistic regime is a challenging task in biomedical optical imaging. This challenge can be overcome by wavefront shaping technique, in which a time-reversed (TR) wavefront of scattered light is generated
Qiang Yang, Xinzhu Sang, Daxiong Xu
doaj   +1 more source

The TIANSHAN Radio Experiment for Neutrino Detection

, 2010
An antenna array devoted to the autonomous radio-detection of high energy cosmic rays is being deployed on the site of the 21 cm array radio telescope in XinJiang, China.
Abraham, Allan, Allan, Apel, Ardouin, Ardouin, Ardouin, Ardouin, Askaryan, Barwick, Bertou, Blümer, Brusova, C. Cârloganu, Carloganu, D. Ardouin, D. Charrier, Falcke, Farebrother, Frichter, Furlanetto, Gora, Gorham, Gorham, Gusev, H. Hu, Horneffer, Huege, Huege, J. Zhang, Kotz, L. Kai, Lamblin, M. Zhao, O. Martineau-Huynh, O. Ravel, P. Lautridou, Q. Gou, Ruben, T. Saugrin, V. Niess, X. Wu, Y. Zhang, Y. Zheng, Zas, Zas, Zheleznykh   +46 more
core   +5 more sources

Calibration of quasi-static aberrations in exoplanet direct-imaging instruments with a Zernike phase-mask sensor [PDF]

, 2013
Context. Several exoplanet direct imaging instruments will soon be in operation. They use an extreme adaptive optics (XAO) system to correct the atmospheric turbulence and provide a highly-corrected beam to a near-infrared (NIR) coronagraph for starlight
Dohlen, K., Fusco, T., N'diaye, Mamadou, N’Diaye, M., Paul, B.   +4 more
core   +5 more sources

Structural Eigenmodes of the Brain to Improve the Source Localization of EEG: Application to Epileptiform Activity

Advanced Science, EarlyView.
Geometry and connectivity are complementary structures, which have demonstrated their ability to represent the brain's functional activity. This study evaluates geometric and connectome eigenmodes as biologically informed constraints for EEG source localization.
Pok Him Siu, Philippa J. Karoly, Sina Mansour L., Artemio Soto‐Breceda, Levin Kuhlmann, Mark J. Cook, David B. Grayden   +6 more
wiley   +1 more source

Experimental Study on Wavefront Distortion Correction in Atmospheric Turbulence Using Zernike-Wavelet Hybrid Basis

Applied Sciences
In adaptive optics systems, most methods rely on reconstruction techniques centered on regional or global orthogonal bases, which struggle to accommodate the multi-scale characteristics of atmospheric turbulence wavefronts.
Jingyuan Liang, Yilin Hao, Hui Li, Xizheng Ke   +3 more
doaj   +1 more source

All‐in‐One Underwater Quality Evaluation Metamaterial With Mechanical Robustness, Sound Attenuation, and Diffuse Reflection

Advanced Science, EarlyView.
In this work, a bioinspired all‐in‐one underwater quality evaluation metamaterial, combining sound attenuation, diffuse reflection, and mechanical robustness, is proposed based on jumping spider locomotion and human skeletal biomechanics. Meanwhile, a CNN‑driven quality evaluation framework is established for theoretically dimension‐reduced ...
Hongze Li, Zhenyu Li, Jinshui Yang, Jianhao Wu, Yidan Chen, Linzhi Wu, Hong Hu, Penglin Gao, Yegao Qu   +8 more
wiley   +1 more source

Wavefront Sensor for Laser Beams Based on Reweighted Amplitude Flow Algorithm

Applied Sciences
We present a reference-free computational wavefront sensor based on binary amplitude modulation and phase retrieval. The method employs a Digital Micromirror Device as a programmable amplitude modulator and reconstructs the complex optical field from ...
Ondřej Denk, Jan Pilař, Martin Divoký, Miroslav Čech, Tomáš Mocek   +4 more
doaj   +1 more source

Curvature sensors: noise and its propagation

, 2010
The signal measured with a curvature sensor is here analyzed. In the outset, we derive the required minimum number of sensing elements at the pupil edges, in dependence on the total number of sensing elements.
Aglae Kellerer, Arsenault, Chun, Fried, Graves, Hudgin, Lai, Roddier, Watanabe, Yang   +9 more
core   +1 more source