Results 61 to 70 of about 1,108,586 (322)

Wave localization as a manifestation of ray chaos in underwater acoustics

, 2007
Wave chaos is demonstrated by studying a wave propagation in a periodically corrugated wave-guide. In the limit of a short wave approximation (SWA) the underlying description is related to the chaotic ray dynamics.
A. Iomin, Abdullaev, Berman, Berman, Brown, Graham, Gutzwiller, Iomin, Jahnke, Jensen, Jose, Lichtenberg, Lichtenberg, Munier, Munk, Palmer, Rayleigh, Scheininger, Simmen, Smirnov, Smith, Sundaram, Tappert, Virovlyansky, Yu. Bliokh, Zaslavsky, Zaslavsky   +26 more
core   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

Caustics Formation by a Spherical Reflector – Geometric and Wave Field Analysis with Applications in Room Acoustics and Radio Astronomy

Engineering Transactions
Based on the principles of geometrical optics, an analytical description of caustics generated in a spherical mirror is presented. The formation of caustics in a wave field is studied using acoustic and electromagnetic waves as an example.
Andrzej Kulowski
doaj   +1 more source

Proposal of a simplified methodology for reverberation time prediction in standard medium size rooms with non-uniformly distributed sound absorption

Acta Acustica, 2023
Sabine, Eyring and Millington formulas are commonly used for reverberation time prediction, mainly, as a calculation tool in building acoustics design.
Mateus Diogo, Pereira Andreia
doaj   +1 more source

Focusing and Compression of Ultrashort Pulses through Scattering Media [PDF]

, 2011
Light scattering in inhomogeneous media induces wavefront distortions which pose an inherent limitation in many optical applications. Examples range from microscopy and nanosurgery to astronomy.
A Assion, A Derode, AM Weiner, BA Wilt, BJ Pearson, BK Andrasfalvy, C-L Hsieh, D Oron, D Oron, D Yelin, E Small, E Tal, Eran Small, F Lemoult, G Lerosey, H Rabitz, H Szmacinski, IM Vellekoop, IM Vellekoop, IM Vellekoop, IM Vellekoop, IM Vellekoop, J Aulbach, JC Diels, JM Dela Cruz, JW Goodman, M Aeschlimann, M Cui, M Fink, M Oheim, M Rueckel, MA Webster, MI Stockman, MJ Booth, NC Bruce, Ori Katz, P Sebbah, PM Johnson, RK Tyson, S Popoff, SM Popoff, T Čižmár, W Denk, Y Jiang, Yaron Bromberg, Yaron Silberberg, Z Yaqoob   +46 more
core   +1 more source

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

Advanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich, Paul Markus, Matthias Stöter, Bernhard Biersack, Rainer Schobert, Josef Breu, Georg Papastavrou   +6 more
wiley   +1 more source

An axisymmetric time-domain spectral-element method for full-wave simulations: Application to ocean acoustics

, 2016
The numerical simulation of acoustic waves in complex 3D media is a key topic in many branches of science, from exploration geophysics to non-destructive testing and medical imaging.
Alexis Bottero, Dimitri Komatitsch, Fichtner A., Jensen F. B., Mark Asch, Paul Cristini, Pilant W. L., Toyokuni G., Tromp J.   +8 more
core   +3 more sources

Sound fields near building facades: comparison of finite and semi-infinite reflectors on a rigid ground plane [PDF]

, 2009
The sound field in front of, and close to a building facade is relevant to the measurement and prediction of environmental noise and sound insulation. For simplicity it is often assumed that the facade can be treated as a semi-infinite reflector, however
Attenborough, C. Hopkins, Cox, Cremer, Delany, Hall, Hothersall, Ismail, Kawai, Quirt, Rindel, Terai, Y. Lam   +12 more
core   +2 more sources

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Acoustic analysis of a well-preserved Renaissance music space: The Odeo Cornaro in Padua★

Acta Acustica
The Odeo Cornaro is a remarkable example of Renaissance architecture featuring an octagonal umbrella-vaulted hall surrounded by four adjacent barrel-vaulted spaces.
Fratoni Giulia, D’Orazio Dario, Ducceschi Michele, Garai Massimo   +3 more
doaj   +1 more source