Results 231 to 240 of about 2,024,523 (345)

Optoelectronic Interfaces for Nongenetic Modulation of Excitable Tissues

Small Methods, EarlyView.
This review summarizes recent advances in nongenetic optoelectronic technologies for the modulation of excitable biotissues, covering material selection, device design, and working principles, as well as characterization methods. Representative applications in in vitro and in vivo models of the cardiac, central, and peripheral nervous systems are ...
Qi Wang, Jinghua Li
wiley   +1 more source

An Optically Transparent Transmissive Metasurface for User‐Defined Broadband Electromagnetic Illusion Generation

Small Structures, EarlyView.
This work presents a transparent transmissive metasurface (TTM), designed using a conditional generative adversarial network to achieve broadband electromagnetic illusions. The proposed TTM ensures high optical transparency while precisely manipulating electromagnetic waves, demonstrating effectiveness in practical applications such as camouflage ...
Peixuan Zhu, Huan Lu, Haoran Han, Rongrong Zhu, Wei Zhou, Shiqi Zhu, Bin Zheng, Hongsheng Chen   +7 more
wiley   +1 more source

Multiphysics Metamaterials for Unified Control of Diverse Physical Fields

Small Structures, EarlyView.
Multiphysics metamaterials unify diffusion, wave, and hybrid field control in one architecture. This review systematically examines the design methodologies, functional implementations, and material compositions of these three categories, followed by a critical analysis of their respective advantages, limitations, and future development trends ...
Fei Sun, Hengxiang Zhang, Yichao Liu, Wanqing Qin, Dongze Li   +4 more
wiley   +1 more source

Computer‐Vision‐Assisted Intelligent Wireless Communication with Programmable Metasurface for Self‐Adaptive Moving‐Target Tracking and Signal Enhancement

Small Structures, EarlyView.
To achieve adaptive beam tracking and signal enhancement for the moving user indoors and outdoors, monocular cameras and computer‐vision algorithms based on a convolutional neural network are introduced to recognize the user's position and posture.
Kui Tang, Wanting Tong, Ye Deng, Shaojie Wang, Yifei Li, Junming Zhao, Tian Jiang, Ke Chen, Yijun Feng   +8 more
wiley   +1 more source

Fast, Nonlinear Phase Estimation with the Non-Modulated Pyramid Wavefront Sensor at Low Strehl Ratio

, 2017
R. A. Frazin
openalex   +2 more sources

Multiphysics Inverse‐Design of Multifunctional Freeform Meta‐Radomes

Small Structures, EarlyView.
A multiphysics inverse design is utilized to produce structurally robust, electromagnetically enhanced meta‐radomes. The proposed strategy improves antenna gain by nearly 10 dB while withstanding extreme mechanical loads in a proof‐of‐concept optimization.
Tyler G. Burns, Andy Huynh, Galestan Mackertich‐Sengerdy, Sawyer D. Campbell, Douglas H. Werner   +4 more
wiley   +1 more source

Anomalous‐Energy Runaway Electrons Originating in Fast Ionisation Wave During Pulsed Gas Breakdown

High Voltage, EarlyView.
ABSTRACT Anomalous‐energy runaway electrons (RAEs), whose energy exceeds the maximum potential difference across the discharge gap, are widely observed in various plasma phenomena. This study investigates the origination of anomalous‐energy RAEs in fast ionisation waves (FIWs) formed during pulsed gas breakdown.
Bangdou Huang, Chenhua Ren, Cheng Zhang, Edl Schamiloglu, Tao Shao   +4 more
wiley   +1 more source

High magnification optical imaging systems for the characterization of soft X‐ray focii

Journal of Synchrotron Radiation, EarlyView.
We developed compact soft X‐ray imaging systems optimized for ultra‐high‐vacuum environments, achieving micrometer‐level spatial resolution with high collection efficiency. Characterization confirmed excellent sensitivity and linearity, with applications demonstrated in caustic measurements and grating interferometry for wavefront analysis.We present a
Andre Al Haddad, Antoine Sarracini, Kirsten Schnorr, Gregor Knopp, Juraj Krempasky, Christopher Arrell, Sven Augustin, Loïc Bassement, Katherine Brupbacher, Joan Vila-Comamala, Christian David, Uwe Flechsig, Rolf Follath, Zhaoheng Guo, Markus Herzog, Jonas Knurr, Csaba Lombosi, Eloisa Manetti, Suddhasattwa Mandal, Ana Sofia Morillo-Candas, Peng Qi, Boris V. Sorokin, Scott Stubbs, Zhibin Sun, Simon Christian Tiefenbacher, Jakub Vonka, Ulrich Hilmar Wagner, Xinhua Xie, Ningchen Yang, Hankai Zhang, Christoph Bostedt   +30 more
wiley   +1 more source

Design and performances of a compact differential pumping unit for X‐ray beamlines

Journal of Synchrotron Radiation, EarlyView.
We present a compact differential pumping unit with apertures ≥500 µm. It allows windowless operation for in‐air sample environments as well as to connect low‐quality in‐vacuum sample environments to the beamline UHV section. The unit also protects the UHV section from accidental venting.
Cristian Maccarrone, Anne-Lise Buisson, Marco Cammarata   +2 more
wiley   +1 more source

3D imaging of neuronal inclusions and protein aggregates in human neurodegeneration by multiscale x‐ray phase‐contrast tomography

Brain Pathology, EarlyView.
x‐ray phase‐contrast tomography enabled three‐dimensional, label‐free visualization and quantification of protein aggregates in neurodegenerative diseases with isotropic submicrometer resolution. The study revealed distinct electron density patterns in Lewy bodies, Hirano bodies, granulovacuolar degeneration, and amyloid plaques, highlighting their ...
Jonas Franz, Jakob Reichmann, Marina Eckermann, Thea Würfel, Artur Groh, Syed Fatima Qadri, Katja Schulz, Brit Mollenhauer, Christine Stadelmann, Tim Salditt   +9 more
wiley   +1 more source