Results 141 to 150 of about 84,499 (278)

An analytical method to find the optimal parameters for gas detectors based on correlation spectroscopy using a Fabry-Perot interferometer

, 2005
Several designs of infrared absorption based gas detector use a Fabry-Perot Interferometer (FPI) to modulate the incident light. In these systems, generally the FPI's fringes are matched with very well defined rotational absorption lines of a target ...
SPIE Europe Internation Symposium on Optical System Design, Rutt, Harvey, Vargas-Rodríguez, Everardo   +2 more
core   +1 more source

Fiber Bragg Grating Force Sensors for Minimally Invasive Surgery: State of the Art, Challenges, and Opportunities

SmartBot, EarlyView.
This article reviews the application of fiber Bragg grating (FBG) technology for precise force sensing in minimally invasive surgery. It outlines the fundamental working principles and algorithms used to interpret sensor data. The text surveys clinical applications across various medical fields, such as ophthalmology and vascular intervention (Table of
Shiyuan Dong, Tianqi Huang, Lingyu Chen, Shucong Yin, Qing Chang, Dingpei Han, Yangxi Li, Boyu Zhang, Hongen Liao, Fang Chen   +9 more
wiley   +1 more source

Tailoring MXene Flake Morphology via Aerosol Jet Printing for Biological and Strain Sensor Applications

Small, EarlyView.
Aerosol Jet Printing (AJP), coupled with a novel in situ monitoring method, enabled the controlled fabrication of aligned and crumpled Ti3C2Tx MXenes for diverse applications. Demonstrated across multiple 2D materials, this scalable strategy stablishes flake morphology as a controllable design parameter for engineering application‐specific material ...
Javier Gutierrez‐Gonzalez, Dahnan Spurling, Cian O'Connor, Eoin Caffrey, Tara McGuire, Jack Maughan, Tian Carey, Jose Munuera, Ilias M. Oikonomou, Julian Carolan, Luke Doolan, Ian Woods, Giulio Brunetti, Maeve A. Caldwell, Adrian Dervan, Richard G. Hobbs, Jonathan N. Coleman, Valeria Nicolosi, Fergal J. O'Brien   +18 more
wiley   +1 more source

Precise length etalon controlled by stabilized frequency comb

Measurement Science Review, 2008
Šmíd R., Číp O., Lazar J.
doaj   +1 more source

Recyclable Printed Liquid Metal Composite for Underwater Stretchable Electronics

Small Science, Volume 5, Issue 5, May 2025.
This work presents a multifunctional liquid metal (LM) microdroplet‐based composite with a custom‐designed block copolymer as the matrix, optimized for printing. The composite exhibits high conductivity, stretchability, durability in dry and aqueous environments, and recyclability of LM using green solvents. These properties highlight its potential for
Chi‐hyeong Kim, Jinsil Kim, Jiaxin Fan, Meijing Wang, Fabio Cicoira   +4 more
wiley   +1 more source

A Dual‐Frequency Sensitivity Model for Optical Fibre Ultrasonic Sensors in Power Transformer Partial Discharge Detection

High Voltage, EarlyView.
ABSTRACT The detection of partial discharges (PD) on the power transformer tank demands higher sensitivity in ultrasonic detection. To target the detection frequency band for sensor optimisation and enhance sensitivity, this paper presents a dual‐frequency sensitivity model for optical fibre ultrasonic sensors.
Sihan Wang, Jihang Sun, Jialin Wang, Bin Wei, Guoming Ma   +4 more
wiley   +1 more source

Brillouin–Raman micro‐mapping of silicone‐hydrogel contact lenses: Revealing chemical and mechanical heterogeneities

Journal of Microscopy, EarlyView.
Abstract Joint Brillouin–Raman micro‐spectroscopy (BRMS) enables simultaneous, non‐destructive characterisation of the mechanical and chemical properties of soft materials at the micrometre scale, combining GHz‐range viscoelastic information from acoustic modes with the vibrational fingerprint of molecular species.
Alessandra Anna Passeri, Martina Alunni Cardinali, Erika Ponzini, Silvia Tavazzi, Daniele Fioretto   +4 more
wiley   +1 more source

A Machine Learning Framework for Retrieving Atmospheric Composition and the Associated Averaging Kernels From a Geostationary Hyperspectral Infrared Sounder

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Geostationary hyperspectral infrared sounders provide hourly observations of the atmospheric composition. However, the conventional optimal estimation method (OEM)‐based retrieval algorithm requires computationally expensive radiative transfer calculations and inverse modeling, making it difficult to monitor in real time. This study presents a
Sirui Wu, Jiancong Hua, Runyi Zhou, Mengya Sheng, Zhao‐Cheng Zeng   +4 more
wiley   +1 more source

SWOT Observations Reveal Basin‐Scale Reservoir Operating Patterns

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract The construction and operation of reservoirs have fundamentally modified the natural hydrograph globally. However, complex seasonal operating patterns remain opaque due to data scarcity, limiting the accuracy of hydrological modeling and water management.
Tan Chen, Jiasheng Li, Shiteng Fang, Pengfei Zhan, Chenyu Fan, Hui Zhang, Chunqiao Song   +6 more
wiley   +1 more source

Space‐Based Observation of Decadal Variations of Ammonium Sulfate Aerosols Over Northern China

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract The concentrations of ammonium sulfate, an important component of secondary inorganic aerosols, have dropped substantially in the North China Plain (NCP) over the past decade. However, current understanding of its variations is limited by the small number of ground‐based measurement sites.
Yingjun Zheng, Zhao‐Cheng Zeng, Runyi Zhou, Lieven Clarisse, Cathy Clerbaux, Ruijun Dang, Jing Wei, Mingjin Tang, Mingxu Liu, Min Hu   +9 more
wiley   +1 more source