Results 161 to 170 of about 79,031 (332)

In Situ X‐Ray Tomography and Acoustic Emission Monitoring of Damage Evolution in C/C‐SiC Composites Fabricated by Liquid Silicon Infiltration

Advanced Science, EarlyView.
This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen, Renato S. M. Almeida, Stefan Flauder, Guillaume Couégnat, Kamen Tushtev, Jürgen Horvath, Peter Wriggers, Kurosch Rezwan   +7 more
wiley   +1 more source

Audible enclaves crafted by nonlinear self-bending ultrasonic beams. [PDF]

Proc Natl Acad Sci U S A
Zhong JX, Ji J, Xia X, Heo H, Jing Y.
europepmc   +1 more source

Photon‐Sphere Modes in Curved Optical Microcavities: A Black‐Hole Analogue Laser

Advanced Science, EarlyView.
An optical analogue of a Schwarzschild black hole is realized using curved microcavities that preserve light‐like geodesics. A new family of laser modes confined around the photon sphere is identified alongside conventional whispering‐gallery modes. Analytical theory, numerical simulations, and experiments reveal curvature‐induced confinement, enabling
Chenni Xu, Aswathy Sundaresan, Nazire‐Begüm Kazkal, Clement Lafargue, Lior Zarfaty, Li‐Gang Wang, Ofek Birnholtz, Dominique Decanini, Melanie Lebental, Patrick Sebbah   +9 more
wiley   +1 more source

Mesh sensitivity and experimental verification for randomized arbitrary geometry cavity-based acoustic metamaterials designed with 2D FEM simulations. [PDF]

Sci Rep
Książek P, Chojnacki B.
europepmc   +1 more source

Disorder‐Induced Extremely Low Thermal Conductivity of Graphite Fluoride

Advanced Science, EarlyView.
This article investigates the effect of fluorination on the thermal conductivity of graphite fluoride, demonstrating the relationship between structural modification and thermal conductivity in an extreme case. The record‐low through‐plane thermal conductivity measured in exfoliated graphite fluoride flakes was found to correlate with the wide ...
Wonsik Lee, Donghoon Moon, Ziyan Qian, Jinwoo Kim, Changheon Kim, Yeojin Lee, Hyobin Yoo, Richard B. Wilson, Qiye Zheng, Gwan‐Hyoung Lee, Hyejin Jang   +10 more
wiley   +1 more source

The 2026 guided acoustic waves roadmap. [PDF]

J Phys D Appl Phys
Krenner HJ, Santos PV, Westerhausen C, Andersson G, Cleland AN, Sellier H, Takada S, Bäuerle C, Wigger D, Kuhn T, Machnikowski P, Weiß M, Moody G, Hernández-Mínguez A, Lazić S, Kuznetsov AS, Küß M, Albrecht M, Weiler M, Puebla J, Hwang Y, Otani Y, Balram KC, Chen IT, Lai K, Li M, Nash GR, Nysten EDS, Bhattacharjee P, Mishra H, Iyer PK, Nemade HB, Khelif A, Benchabane S, Feng G, Jin Y, Bartasyte A, Margueron S, Marangolo M, Thevenard L, Rovillain P, Gourdon C, Hage-Ali S, Elmazria O, Schmidt H, Yeo LY, Ambattu LA, Jeon JS, Kwak D, Rufo J, Yang S, Huang TJ.   +51 more
europepmc   +1 more source

3D Large‐Scale Subwavelength‐Resolution Sound Sheet Tomography Based on an Active and Programmable Circular Meta‐Array

Advanced Science, EarlyView.
A programmable 2048‐element circular ultrasound array combined with a compact acoustic lens produces a thin “sound sheet” over a large field of view, and records echoes with wide angular diversity across the ring aperture. Coherence‐enhanced beamforming converts full‐matrix data into high‐contrast tomographic slices, delivering near‐diffraction‐limited
Qiu‐De Zhang, Zi‐Bin Lin, Zhuo Chen, Zhao‐Hui Liu, Jin‐Lian He, Jun‐Jie Song, Long‐Sheng Zeng, Liang Zhou, Ming‐Yue Ding, Yu‐Gui Peng, Ming Yuchi, Xue‐Feng Zhu   +11 more
wiley   +1 more source

Thermally Programmable Two-Port Non-Hermitian Acoustic Metastructure for Broadband and Direction-Dependent Absorption. [PDF]

Adv Sci (Weinh)
Guo Z, Li Z, Lei Z, Yang Z, Zeng K, Fan Z, Wang Z.   +6 more
europepmc   +1 more source

An Implanted Tooth That Can Feel

Advanced Science, EarlyView.
To endow the implanted tooth with masticatory perception, herein we demonstrate that a 3D‐printed piezoelectric‐core/robust‐sheath implanted tooth can rebuild the sensing feedback, serving as “mechanoreceptors” in converting the mechanical chewing force to electrical signals, and up to brain through surrounding alveolar nerve system.
Yaru Cao, Zhenhua Wu, Jiwei Sun, Ke Song, Jiayi Li, Yujin Li, Wenqi Chen, Hanyu Li, Shue Li, Cheng Yang, Silin Liu, Yunyun Han, Bin Su, Yumei Ding   +13 more
wiley   +1 more source

Piezoelectric stepped-plate resonators vibrating at lateral modes for direct viscosity determination in liquids. [PDF]

Microsyst Nanoeng
Huang L, Lu D, Han X, Wu H, Li W, Niu G, Wang K, Yang P, Ren W, Zhao L.   +9 more
europepmc   +1 more source