Results 281 to 290 of about 1,129,305 (370)

Approximation formulae for the acoustic radiation impedance of a cylindrical pipe

open access: green, 2009
Fabrice Silva   +4 more
openalex   +2 more sources

Enhanced Band‐Crystal Engineering Drives Superior Power Generation in GeTe

open access: yesAdvanced Science, EarlyView.
By precisely tuning the band structure and crystal structure in GeTe‐based thermoelectric (TE) materials, this study achieves comprehensive control over electron transport and phonon scattering. Structural optimization significantly enhances carrier‐weighted mobility (µw) while effectively suppressing lattice thermal conductivity (κL), resulting in a ...
Xiaobo Tan   +10 more
wiley   +1 more source

Acoustic impedance inversion by feedback artificial neural network

open access: bronze, 2009
Kamel Baddari   +3 more
openalex   +1 more source

Quantum Valley Hall Effect‐Based Coupler with Continuously Tunable Transmission for Topological Information Communication

open access: yesAdvanced Science, EarlyView.
The quantum‐valley‐Hall‐based bridge boundary has the frequency dependent wave localization. Utilizing the frequency dependency, this article experimentally shows the micro‐electromechanical‐systems‐based topological coupler with continuously tunable transmission coefficients by the frequency of interface modes within a single bulk bandgap. Furthermore,
Keita Funayama   +3 more
wiley   +1 more source

Decoupling Ultralow Coherent and Particle‐Like Phonon Transport via Bonding Hierarchy in Soft Superionic Crystals

open access: yesAdvanced Science, EarlyView.
The bonding hierarchy in X6Re6S8I8 (X = Rb, Cs) promotes phonon localization, generating extensive discrete phonon flat bands that redefine the lower bounds of lattice thermal conductivity in crystals. Abstract Within the unified theoretical framework for thermal transport, the inherent interplay between coherent tunneling and propagative phonon ...
Wenjie Xiong   +6 more
wiley   +1 more source

A Pump‐Free, Hydraulic‐Amplification Oscillatory Microfluidic Device for Continuous Particle and Cell Manipulation

open access: yesAdvanced Science, EarlyView.
This study demonstrates a pump‐free, hydraulic‐amplification oscillatory microfluidic device, which generates oscillatory flows by deforming flexible microchannels through reciprocating finger pressing. The mechanism of elasto‐inertial focusing in the oscillatory flows is revealed, and early detection of drug‐treated platelet aggregates and rapid cell ...
Yong Liu   +3 more
wiley   +1 more source

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