Results 41 to 50 of about 13,426 (215)

Golden‐Ratio–Guided Aperiodic Architected Metamaterials with Simultaneously Enhanced Strength and Toughness

Advanced Functional Materials, EarlyView.
Guided by the golden ratio, a class of aperiodic architected metamaterials is introduced to address the intrinsic trade‐off between strength and toughness. By unifying local geometric heterogeneity with global order, the golden‐ratio‐guided aperiodic architecture promotes spatial delocalization of damage tolerence regions, leading to more tortuous ...
Junjie Deng, Xinxin Wang, Ruochao Zhao, Zhendong Li, Kai Liu, Ke Yuan, Jia An, Xinwei Li, Chee Kai Chua, Zhonggang Wang   +9 more
wiley   +1 more source

The energy consumption characteristics of a new type of energy dissipating vibration-damping fastener

AIP Advances
To address the issue of inadequate energy dissipation capacity in current vibration-damping fasteners, this study examined the impact of stiffness and damping factor of vibration-damping fasteners on the vibration attenuation rate of rails, based on the ...
Yan Liu, Jiansen Zhu, Xianpu Yuan, Runhua Fan, Yuan Yuan   +4 more
doaj   +1 more source

Sensing with sound enhanced acoustic metamaterials for fault diagnosis

Frontiers in Physics, 2022
Cost-effective technology for condition monitoring and fault diagnosis is of practical importance for equipment maintenance and accident prevention. Among many fault diagnosis methods, sound-based sensing technology has been highly regarded due to its ...
Shiqing Huang, Shiqing Huang, Yubin Lin, Yubin Lin, Weijie Tang, Weijie Tang, Rongfeng Deng, Rongfeng Deng, Qingbo He, Fengshou Gu, Fengshou Gu, Andrew D. Ball   +11 more
doaj   +1 more source

Isotropic-medium three-dimensional cloaks for acoustic and electromagnetic waves

, 2012
We propose a generalization of the two-dimensional eikonal-limit cloak derived from a conformal transformation to three dimensions. The proposed cloak is a spherical shell composed of only isotropic media; it operates in the transmission mode and ...
Blair D. E., Chew W. C., David R. Smith, Meinke H. H., Nathan Landy, Yaroslav Urzhumov   +5 more
core   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Acoustic cloaking design based on penetration manipulation with combination acoustic metamaterials

Journal of Low Frequency Noise, Vibration and Active Control
The acoustic wave transmission manipulation ability is the most important performance for the acoustic metamaterials. To manipulate the acoustic transmission, the combination acoustic metamaterials structures are involved, and the two-directional ...
Chen Luyun, Huang Xichun
doaj   +1 more source

Tunable acoustic passive phased array based on double-opening resonant rings

AIP Advances, 2023
The special structural design of acoustic metamaterials further extends acoustic properties of the materials. We design a tunable acoustic passive phased array based on double-opening resonant rings, which modulates the acoustic waves only by the ...
Shulei Gong, Jinyu Zhao, Mengchun Yang, Yuan Liu, Haixiao Zhang, Yongchang Li   +5 more
doaj   +1 more source

Orbital Angular Momentum Waves: Generation, Detection and Emerging Applications

, 2019
Orbital angular momentum (OAM) has aroused a widespread interest in many fields, especially in telecommunications due to its potential for unleashing new capacity in the severely congested spectrum of commercial communication systems.
Chen, Rui, Li, Jiandong, Moretti, Marco, Wang, Xiaodong, Zhou, Hong   +4 more
core   +1 more source

Novel Functional Materials via 3D Printing by Vat Photopolymerization

Advanced Functional Materials, EarlyView.
This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov, Patrick Fesser, Boris A. Bulgakov, Ulrich S. Schubert   +3 more
wiley   +1 more source

Three-dimensional acoustic double-zero-index medium with a Dirac-like point

, 2019
We report a design and experimental realization of a three-dimensional (3D) acoustic double-zero-index medium (DZIM), whose effective mass density and compressibility are nearly zero simultaneously.
Chen, Ze-Guo, Lai, Yun, Luo, Jie, Ma, Guancong, Shi, Jinjie, Wu, Ying, Xu, Changqing   +6 more
core   +1 more source