Results 91 to 100 of about 284,460 (322)

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

Advanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine, Shashank Gupta, William Makinen, Zayvinn Lin, Krystal Delnoce, Reza Moini   +5 more
wiley   +1 more source

Periodic crack-model of comb transducers: excitation of interface waves

Archives of Acoustics, 2000
A model for a comb transducer is proposed and analyzed. It is shown that interface waves are generated in the comb-sample contact area. The interface waves are leaky waves that transport acoustic energy along the interface towards the comb edges, where ...
E. DANICKI
doaj  

Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration

Advanced Materials, EarlyView.
A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang, Byeongseok Ryu, Sujeong Ahn, Junhyub Kim, Myeonghun Jang, Jeong Ho Cho, Won‐Gun Koh, Hyungsuk Lee   +7 more
wiley   +1 more source

Ultrasonic measurement models for surface wave and plate wave inspections [PDF]

, 2009
A complete ultrasonic measurement model for surface and plate wave inspections is obtained, where all the electrical, electromechanical, and acoustic∕elastic elements are explicitly described.
Schmerr, Lester W., Jr., Sedov, Alexander   +1 more
core   +2 more sources

Acoustic waves generated by the spin precession

, 2015
We study generation of acoustic waves by a precessing spin of a nanoparticle deposited on the surface of a solid. Our approach elucidates macroscopic dynamics of the Einstein - de Haas effect.
Chudnovsky, E. M., Zarzuela, R.
core   +1 more source

Soft Ionic and Electronic Triboelectric Nanogenerators: Toward Attachable and Implantable Biomedical Applications

Advanced Materials, EarlyView.
This review provides an overview of triboelectric nanogenerator (TENG)–based biomedical applications by classifying studies into electronic and ionic systems across attachable and implantable platforms. It summarizes key material choices, device structures, and working mechanisms that characterize current TENG‐based research, and outlines six future ...
Kyongtae Choi, Jimin Park, Won Jun Song, Soohwan An, Seonggyu Choe, Byeong‐Rak Keum, Min Young Kim, Dae Hee Hwang, Young‐Geun Park, Sung‐Won Kim, Sangyul Baik, Gwang‐Bum Im, Younghoon Lee   +12 more
wiley   +1 more source

Gradient index phononic crystals and metamaterials

Nanophotonics, 2019
Phononic crystals and acoustic metamaterials are periodic structures whose effective properties can be tailored at will to achieve extreme control on wave propagation.
Jin Yabin, Djafari-Rouhani Bahram, Torrent Daniel   +2 more
doaj   +1 more source

Theoretical Analysis of SAW Propagation in 3C-SiC/c-AlN

Crystals, 2016
The anisotropic materials as the acoustic wave propagating medium introduce the dependence of the phase velocity on the wave propagation direction, as opposed to the isotropic counterparts; in addition, the profile of the particle displacement components
Cinzia Caliendo
doaj   +1 more source

The Sensitive Element of Acoustic Sensor on Circular Polarized Waves: From Theoretical Considerations towards Perspective Rotation Rate Sensors Design

Sensors, 2020
In this paper, the perspectives of using the features of acoustic wave propagation to design rotation rate sensors (RRS) are discussed. The possibility of developing the solid-state sensitive elements (SE) of RRS on acoustic waves of circular ...
Michail Shevelko, Andrey Lutovinov, Aleksandr Peregudov, Ekaterina Popkova, Yasemin Durukan, Sergey Shevchenko   +5 more
doaj   +1 more source

Phononic band structure engineering for high-Q gigahertz surface acoustic wave resonators on lithium niobate

, 2019
Phonons at gigahertz frequencies interact with electrons, photons, and atomic systems in solids, and therefore have extensive applications in signal processing, sensing, and quantum technologies.
Gadalla, M. N., Hu, Evelyn, Lai, Keji, Loncar, Marko, Maity, Smarak, Puma, Eric, Shams-Ansari, Amirhassan, Shao, Linbo, Sohn, Young-Ik, Wang, Cheng, Wu, Lue, Zhang, Mian, Zheng, Lu   +12 more
core   +1 more source