Results 101 to 110 of about 45,931 (274)

Intraoperative Fast Adaptive Focus Tracking Robotic OCT Enables Real‐Time Tumor Grading and Large‐Area Microvascular Imaging in Human Spinal Cord Surgery

Advanced Science, EarlyView.
The fast adaptive focus tracking robotic optical coherence tomography (FACT‐ROCT) offers real‐time, high‐resolution imaging of spinal cord tumors during surgery. By reducing motion artifacts with robotics and adaptive focal tracking, it accurately differentiates tumor grades using a novel attenuation coefficient marker and reveals critical ...
Bin He, Yuzhe Ying, Yejiong Shi, Zhe Meng, Zichen Yin, Zhengyu Chen, Zhangwei Hu, Ruizhi Xue, Linkai Jing, Yang Lu, Zhenxing Sun, Weitao Man, Youtu Wu, Dan Lei, Ning Zhang, Guihuai Wang, Ping Xue   +16 more
wiley   +1 more source

High-efficiency ultraviolet inscription of Bragg gratings in microfibers

IEEE Photonics Journal, 2012
In this paper, we demonstrate high-efficiency inscription of Bragg gratings in microfiber. Strong Bragg gratings are easily inscribed using a 193-nm excimer laser and phase mask in microfiber drawn from the 62.5/125- μm standard multimode fiber ...
Yang Ran, Long Jin, Yan-Nan Tan, Li-Peng Sun, Jie Li, Bai-Ou Guan   +5 more
doaj   +1 more source

Genetic Impacts on the Structure and Mechanics of Cellulose Made by Bacteria

Advanced Science, EarlyView.
A genetic mutation in a protease of a cellulose‐overproducing evolved bacterium significantly affects the proteome, structure, and mechanical properties of bio‐fabricated cellulose pellicles. By overexpressing synthase proteins that build the cellulose‐forming biological machinery of the cell, the evolved bacterium generates dense, stiff, and strong ...
Julie M. Laurent, Mathias Steinacher, Anton Kan, Maximilian Ritter, Mario Leutert, Siiri Bienz, David Häberlin, Naresh Kumar, André R. Studart   +8 more
wiley   +1 more source

Intrinsic Mechanical Parameters and their Characterization in Solid‐State Lithium Batteries

Advanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
This review focuses on the intrinsic mechanical parameters and their associated characterization in solid‐state batteries. The physical significance of mechanics parameters is introduced with exhaustive classifications by elastic, plastic deformations and fracture in bulk, adhesion, friction at interfaces, and mechanical fatigue in cells ...
Shuai Hao, Qianyi Zhang, Xiangkang Kong, Zhaoxiang Wang, Xue‐Ping Gao, Paul R. Shearing   +5 more
wiley   +1 more source

The Photorefractive Bragg Gratings in the Fibers for Telecommunications

Journal de Physique III, 1996
This revue article describes photorefractive Bragg gratings (elaboration, interest, performances) which are planned to be used in optical fibers for telecommunications. This application justifies the effort made presently to increase the photosensitivity of the fibers and the stability of the grating inscribed in them. Since Bragg gratings are based on
Poumellec, B., Kherbouche, F.
openaire   +3 more sources

Cladding-Mode Backward-Recoupling-Based Displacement Sensor Incorporating Fiber Up Taper and Bragg Grating

IEEE Photonics Journal, 2013
A temperature-insensitive fiber-optic displacement sensing scheme by cascading the fiber up taper and Bragg grating is experimentally demonstrated.
Tao Qi, Shilin Xiao, Jie Shi, Lilin Yi, Zhao Zhou, Meihua Bi, Weisheng Hu   +6 more
doaj   +1 more source

Probing Electrode Transformation under Dynamic Operation for Alkaline Water Electrolysis

Advanced Energy Materials, EarlyView.
This work leverages extensive electrochemical diagnostics and physical characterizations to investigate degradation mechanism of alkaline water electrolysis under reverse current conditions, which also proposes pathways to accelerate deployment of more efficient, affordable, and reliable hydrogen production solutions.
Guanzhi Wang, Haoyi Li, Finn Babbe, Andrew Tricker, Ethan J. Crumlin, Junko Yano, Rangachary Mukundan, Xiong Peng   +7 more
wiley   +1 more source

An Injection-Locked Single-Longitudinal-Mode Fiber Ring Laser With Cylindrical Vector Beam Emission

IEEE Photonics Journal, 2017
We demonstrate a fiber ring laser with narrow bandwidth single-longitudinal-mode cylindrical vector beam (CVB) output at C-band wavelength range for the first time to the best of our knowledge.
Hongdan Wan, Hongye Li, Changle Wang, Bing Sun, Zuxing Zhang, Wei Wei, Lin Zhang   +6 more
doaj   +1 more source

Detection and Quantification of Over‐Humidification in Polymer Electrolyte Fuel Cells: Insights into Simulation, Imaging, and Sensors

Advanced Energy and Sustainability Research, EarlyView.
This review highlights advanced methods for detecting and managing over‐humidification in polymer electrolyte fuel cells (PEFCs), emphasizing innovative sensors, simulation techniques, and imaging methods. By addressing the impact of water management on fuel‐cell performance and durability, this study outlines practical and sustainable solutions for ...
Maximilian Käfer, Viktor Hacker, Merit Bodner   +2 more
wiley   +1 more source

Optical vortex fiber laser based on modulation of transverse modes in two mode fiber

APL Photonics, 2019
Optical vortices, characterized by helical phase fronts, are usually generated outside the laser cavity using passive modulation methods. Here, we demonstrate an all-fiber laser to directly deliver mode-locked and continuous-wave vortex beams based on ...
Dong Mao, Mingkun Li, Zhiwen He, Xiaoqi Cui, Hua Lu, Wending Zhang, Han Zhang, Jianlin Zhao   +7 more
doaj   +1 more source