Results 61 to 70 of about 1,196 (176)

Transfer scattering matrix of non-uniform surface acoustic wave transducers

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1987
This paper is concerned with a general mathematical theory for finding the admittance matrix of a three-port non-uniform surface acoustic wave (SAW) network characterized by n unequal hybrid sections.
N. C. Debnath, T. Roy
doaj   +1 more source

Broadband surface acoustic wave attenuation in metals using chirp compression and dispersive interdigital transducers [PDF]

open access: yesJASA Express Letters
This study presents a non-destructive method for estimating surface acoustic wave attenuation, which is highly sensitive to microstructural features, especially at high frequencies.
Dame Fall   +4 more
doaj   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, Volume 11, Issue 13, 8 July 2026.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Multi‐Dimensional Conductive Nanocomposites for Flexible Electronics

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 4, July 2026.
Multi‐dimensional conductive nanocomposites integrate 0D, 1D, and 2D nanomaterials through spatial structure regulation and interface engineering, achieving “1 + 1 > 2” synergistic effects. By leveraging 0D filling to reduce contact resistance, 1D bridging to construct continuous conductive paths, and 2D supporting to enhance mechanical stability ...
Tianyu Wang   +12 more
wiley   +1 more source

Hyaluronan (HA) Receptors: Discovery, Function & Pathology

open access: yesProteoglycan Research, Volume 4, Issue 3, July 2026.
ABSTRACT Hyaluronan (HA) is typically a long polymer of the repeating disaccharide, glucuronic acid‐β‐(1‐3)‐N‐acetylglucosamine polymerized by β(1‐4) bonds, with no obvious active site for biological activity. However, this dynamic polymer is vital for life in all metazoans and has a diverse array of functional characteristics due to the proteins that ...
Abby E. Bopp   +8 more
wiley   +1 more source

Gas Adsorption‐Driven Electronic Modulation in WO3@Cu3(HHTP)2 Heterostructure: Mechanistic Origin of Selective Drift Resistance Room‐Temperature Formaldehyde Sensing

open access: yesSmall, Volume 22, Issue 41, 22 July 2026.
A WO3@Cu3(HHTP)2 heterostructure is engineered to achieve ultra‐sensitive, drift‐resistant formaldehyde detection at room temperature. Interfacial orbital hybridization and defect modulation enable adsorption‐driven electronic tuning, resulting in ppb‐level detection, rapid response, and high selectivity.
Mohammad Jamir Ahemad   +8 more
wiley   +1 more source

Development of an FPW Biosensor with Low Insertion Loss and High Fabrication Yield for Detection of Carcinoembryonic Antigen

open access: yesSensors, 2016
In the last two decades, various flexural plate-wave (FPW)-based biosensors with low phase velocity, low operation frequency, high sensitivity, and short response time, have been developed. However, conventional FPW transducers have low fabrication yield
Je-Wei Lan   +5 more
doaj   +1 more source

Smart Face Masks as Wearable Respiratory Sensors: A Review of Sensor Technologies, Materials, and Future Directions

open access: yesAdvanced Healthcare Materials, Volume 15, Issue 21, 5 June 2026.
This review highlights recent advances in smart face masks that actively monitor breathing. By integrating humidity, gas, temperature, pressure, strain, and triboelectric sensors, these masks track key respiratory parameters in real time. The article summarizes sensor mechanisms, compares performance across studies, and discusses challenges and future ...
Negin Faramarzi   +7 more
wiley   +1 more source

Water‐Stable Paper‐Based Laser‐Induced Graphene With Asymmetric Water Adhesion and Wettability

open access: yesAdvanced Materials Interfaces, Volume 13, Issue 11, 9 June 2026.
Paper‐based electronics are attractive for sustainable and disposable devices, but often fail in wet environments. By introducing Parafilm into cellulose paper combined with laser conversion, two graphene surfaces with different water interactions are created.
Lingyin Meng   +3 more
wiley   +1 more source

Piezoelectric Actuators for In-Liquid Particle Manipulation in Microfluidic Applications

open access: yesProceedings, 2017
The possibility to generate acoustic modes based on FPWs (Flexural Plate Waves) in a generic non-piezoelectric substrate for microfludic applications by means of piezoelectric actuators has been explored and described in this paper.
Marco Demori   +4 more
doaj   +1 more source

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