Results 81 to 90 of about 242,425 (301)

Visualization of Demodulated Sound Based on Sequential Acoustic Ray Tracing with Self-Demodulation in Parametric Array Loudspeakers

Applied Sciences
With the development of acoustic simulation methods in recent decades, it has become feasible to simulate the sound pressure distribution of loudspeakers before actually setting physical speakers and measuring the sound field.
Yuting Geng, Makoto Shimokata, Masato Nakayama, Takanobu Nishiura   +3 more
doaj   +1 more source

Depolarized guided acoustic wave Brillouin scattering in hollow-core photonic crystal fibers

, 2015
By performing quantum-noise-limited optical heterodyne detection, we observe polarization noise in light after propagation through a hollow-core photonic crystal fiber (PCF).
Elser, Dominique, Heim, Bettina, Leuchs, Gerd, Marquardt, Christoph, Stiller, Birgit, Zhong, Wenjia Elser née   +5 more
core   +1 more source

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

Advanced Materials, EarlyView.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel, Haotian Lu, Jiayan Zhang, Desheng Yao, Ananya Bhardwaj, Ramiro Contreras, Karim Sabra, Xiaoyu (Rayne) Zheng   +7 more
wiley   +1 more source

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

Prediction of HIFU Propagation in a Dispersive Medium via Khokhlov–Zabolotskaya–Kuznetsov Model Combined with a Fractional Order Derivative

Applied Sciences, 2018
High intensity focused ultrasound (HIFU) has been proven to be promising in non-invasive therapies, in which precise prediction of the focused ultrasound field is crucial for its accurate and safe application. Although the Khokhlov–Zabolotskaya–Kuznetsov
Shilei Liu, Yanye Yang, Chenghai Li, Xiasheng Guo, Juan Tu, Dong Zhang   +5 more
doaj   +1 more source

Coupled multi-disciplinary simulation of composite engine structures in propulsion environment [PDF]

A computational simulation procedure is described for the coupled response of multi-layered multi-material composite engine structural components which are subjected to simultaneous multi-disciplinary thermal, structural, vibration, and acoustic loadings
Chamis, Christos C., Singhal, Surendra N.   +1 more
core   +1 more source

Monte Carlo Modeling of Spin FETs Controlled by Spin-Orbit Interaction

, 2003
A method for Monte Carlo simulation of 2D spin-polarized electron transport in III-V semiconductor heterojunction FETs is presented. In the simulation, the dynamics of the electrons in coordinate and momentum space is treated semiclassically. The density
Awschalom, Barry, Bournel, Britton, Bychkov, Cardona, Cheng, Cheng, Ciuti, Das Sarma, Das Sarma, Datta, Dresselhaus, Dyakonov, D’yakonov, Elliott, Fabian, Fiederling, Fishman, Flatte, Hanbicki, Inoue, Jacoboni, Johnson, Kane, Kiselev, Koga, Mani, Mattana, Min Shen, Ming-C. Cheng, Mireles, Motsnyi, Nitta, Ohno, Pramanik, Qi, Saikin, Sanada, Sato, Schapers, Schliemann, Schmidt, Semion Saikin, Valet, Vladimir Privman, Wang, Weng, Wolf, Yu, Zutic   +50 more
core   +1 more source

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

Acoustic Ambience and Simulation of the Bullring of Ronda (Spain)

Buildings
The bullring of Ronda, one of the oldest in Spain, declared in 1993 as an Asset of Cultural Interest, occupies a paramount place among the buildings of its type thanks to its outstanding beauty.
Manuel Martín-Castizo, Sara Girón, Miguel Galindo   +2 more
doaj   +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