Results 51 to 60 of about 16,946 (263)

A Non‐Reciprocal Architected Porous Medium

Advanced Functional Materials, EarlyView.
ABSTRACT In several fluid flow, energy‐dumping, and energy‐harvesting applications, a dominant flow direction or dominant resistance direction is desirable. In this study, we propose a simple modular geometry that doubles flow resistance in one direction relative to the opposite direction, while maintaining laminar viscous flow.
Clément Vezies, Pablo Zavattieri, Nicolás Silin   +2 more
wiley   +1 more source

Hybrid Sensor Device for Simultaneous Surface Plasmon Resonance and Surface Acoustic Wave Measurements

Sensors, 2020
Surface plasmon resonance (SPR) and Love wave (LW) surface acoustic wave (SAW) sensors have been established as reliable biosensing technologies for label-free, real-time monitoring of biomolecular interactions.
Anastasios G. Samarentsis, Alexandros K. Pantazis, Achilleas Tsortos, Jean-Michel Friedt, Electra Gizeli   +4 more
doaj   +1 more source

Complex for experimental research of elastic wave interactions with ice layer [PDF]

E3S Web of Conferences, 2019
An adjustable pneumatic generator of acoustic signals with shock excitation was developed. Measuring and computing complex was also created to investigate elastic acoustic wave propagation along ice surface.
Chen Wenjian, Chernenko Vasily, Petrosyants Victor, Grishchenko Vladimir   +3 more
doaj   +1 more source

Graphene-coated rayleigh SAW resonators for NO2 detection [PDF]

, 2014
This paper describes the development of a novel low-cost Rayleigh Surface Acoustic Wave Resonator (SAWR) device coated with a graphene layer that is capable of detecting PPM levels of NO2 in air.
Udrea, F., Torrisi, F., Cole, M., Ferrari, A.C., Thomas, S., De Luca, A., Gardner, J. W., Gardner, J.W., DE LUCA, ANDREA, Thomas, Stephen M., Cole, Marina, Ferrari, A. C., Udrea, Florin, Gardner, Julian W   +13 more
core   +1 more source

Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers

Advanced Functional Materials, EarlyView.
We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar, Fahrettin Sarcan, Elanur Hut, Emiliano R. Martins, Stuart A. Cavill, Thomas F. Krauss, Yue Wang   +6 more
wiley   +1 more source

Preliminary Performance Assessment of the Wave Parameter Retrieval Algorithm from the Average Reflected Pulse

Remote Sensing
To obtain new information about surface waves, it is proposed to use an underwater acoustic wave gauge, and an assessment of its effectiveness can be performed using a numerical simulation and field experiment.
Yuriy Titchenko, Guo Jie, Vladimir Karaev, Kirill Ponur, Maria Ryabkova, Vladimir Baranov, Vladimir Ocherednik, Yijun He   +7 more
doaj   +1 more source

Combined surface acoustic wave and surface plasmon resonance measurement of collagen and fibrinogen layer physical properties

Sensing and Bio-Sensing Research, 2016
We use an instrument combining optical (surface plasmon resonance) and acoustic (Love mode surface acoustic wave device) real-time measurements on a same surface for the identification of water content in collagen and fibrinogen protein layers.
J.-M. Friedt, L.A. Francis
doaj   +1 more source

Surface acoustic wave coupling between micromechanical resonators

Communications Physics, 2022
As the size of mechanical resonators is decreased, their resonance frequencies increase and acoustic wave-like propagation in their substrate becomes important.
Hendrik Kähler, Daniel Platz, Silvan Schmid   +2 more
doaj   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

Advanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil, Sri Vaishnavi Thummalapalli, Clarissa Westover, Arunachalam Ramanathan, M. Taylor Sobzcak, Roumika Patil, Qixuan Xiang, Tiantian Li, Sui Yang, Timothy E. Long, Hongyue Sun, Xianqiao Wang, Yang Liu, Kenan Song   +13 more
wiley   +1 more source

Study on the Fabrication and Acoustic Properties of Near-Stoichiometric Lithium Tantalate Crystal Surface Acoustic Wave Filters

Crystals
Near-stoichiometric lithium tantalate (NSLT) wafers with different Li contents were prepared by vapour transfer equilibrium (VTE) method and fabricated into surface acoustic wave filters.
Jiashun Si, Xuefeng Xiao, Yan Huang, Yan Zhang, Shuaijie Liang, Qingyan Xu, Huan Zhang, Lingling Ma, Cui Yang, Xuefeng Zhang   +9 more
doaj   +1 more source