Results 121 to 130 of about 1,108,586 (322)

Fast Time-Domain Edge-Diffraction Calculations for Interactive Acoustic Simulations

EURASIP Journal on Advances in Signal Processing, 2007
The inclusion of edge diffraction has long been recognized as an improvement to geometrical-acoustics (GA) modeling techniques, particularly for acoustic simulations of complex environments that are represented as collections of finite-sized planar ...
U. Peter Svensson, Paul T. Calamia
doaj   +1 more source

Decoding THz‐Driven Dynamic Fingerprints of Ferroelectric Nanotwin Networks

Advanced Materials, EarlyView.
ABSTRACT Ultrafast polarization dynamics in ferroelectrics are of considerable interest for high‐speed tunable dielectrics and electro‐optics. Extended domain wall networks formed in ferroelectric twin nanodomains can support collective dynamics in the terahertz regime but require techniques that track polarization and strain evolution driven by ...
Xiaojiang Li, Aiden Ross, Vladimir A. Stoica, Sujit Das, Sankalpa Hazra, Huaiyu (Hugo) Wang, Hari Padma, Matthias C. Hoffmann, Patrick Kramer, Sanghoon Song, Silke Nelson, Takahiro Sato, Diling Zhu, Ramamoorthy Ramesh, Lane W. Martin, Yue Cao, John W. Freeland, Aaron M. Lindenberg, Haidan Wen, Long‐Qing Chen, Venkatraman Gopalan   +20 more
wiley   +1 more source

A method for constructing a 3D open-cell foam model based on Voronoi diagram

Hangkong gongcheng jinzhan
Open-cell foam material is an advanced functional and structural integration material，which can meet the practical needs of aerospace and other high-tech fields，and has a good prospect in practical engineering production applications. The research on the
QU Qingheng
doaj   +1 more source

Investigation of Structural, Mechanical and Electrochemical Properties of Temperature‐Dependent Dual AlN/TiAlN Coating Synthesized by CVD Process

Advanced Materials Interfaces, EarlyView.
This study investigates thermally CVD‐deposited AlN/TiAlN dual‐layer coatings over a Si substrate, focusing on the temperature‐dependent process‐structure relationship. Systematic characterization reveals that a dense AlN interlayer combined with an optimally deposited TiAlN top layer provides enhancement in mechanical strength, tribological stability,
Soham Das, Abhishek Kundu, Debjyoti Sahu, Nikhil Kumar, Spandan Guha   +4 more
wiley   +1 more source

LattSAC: a software for the acoustic modelling of lattice sound absorbers

Virtual and Physical Prototyping
The increasingly distressing problem of noise pollution prompts the rapid research and development of lattice-based acoustic materials for practical applications.
Jun Wei Chua, Zhejie Lai, Xinwei Li, Wei Zhai   +3 more
doaj   +1 more source

Wafer‐Scale Single‐Crystal Boron Nitride: Synthesis and Integration in 2D Electronics

Advanced Materials Interfaces, EarlyView.
This Review highlights recent breakthroughs in wafer‐scale hBN synthesis and its integration into next‐generation 2D electronics. We analyze growth kinetics, epitaxial strategies, and stacking‐sequence control while correlating material quality with device performance.
Jaewon Wang, Soon‐Yong Kwon
wiley   +1 more source

Acoustic Pancharatnam-Berry Geometric Phase

Geometric phases provide a unified framework for understanding diverse phenomena in quantum and classical physics. The Pancharatnam-Berry (PB) geometric phase, arising from variation of optical transverse polarization, has transformed light manipulation.
Xiao, Wanyue, Kuang, Wenjian, Huang, Sibo, Liang, Shanjun, Tsai, Din Ping, Wang, Shubo   +5 more
openaire   +2 more sources

Direct Mode‐Resolved Measurement of Interfacial Phonon Transport by Acoustic Phonon Reflectometry

Advanced Materials Interfaces, EarlyView.
We introduce a novel analysis, acoustic phonon reflectometry, that measures the mode‐resolved phonon reflection coefficient at semiconductor interfaces. In aluminum nitride, we observe excellent agreement with the acoustic mismatch model across three distinct interfaces.
Christopher Hennighausen, Gustavo A. Alvarez, Jeffrey Z. Kaaret, Patrick Soucy, Amir F. Amhaz, Jeffrey Moses, Kenneth R. Beyerlein, Nicole A. Benedek, Zhiting Tian, Ankit S. Disa   +9 more
wiley   +1 more source

Ductility Tuning via Cluster Network Characteristics of Porous Components

Advanced Materials Technologies, EarlyView.
Network optimization via cluster characteristics induced by interaction of stress concentration is proposed, demonstrating increased cluster size and dispersion in non‐uniform porous components. The optimized structures exhibit, for the first time, that enhanced ductility and damage progression is controllable through zigzag cluster network designed by
Ryota Toyoba, Yuichi Otsuka, Ian J Davies, Naritoshi Aoyagi, Yukio Miyashita   +4 more
wiley   +1 more source

Atmospheric Propagation [PDF]

Reviewed here is the current state of knowledge with respect to each basic mechanism of sound propagation in the atmosphere and how each mechanism changes the spectral or temporal characteristics of the sound received at a distance from the source.
Daigle, Gilles A., Embleton, Tony F. W.
core   +1 more source