Results 81 to 90 of about 3,555 (220)

A single and double slotting radial acoustic metamaterial plate

, 2017
This paper presents the low-frequency acoustic properties of a new single and double slotting radial acoustic metamaterial plate which is arranged in the axial coordinate.
Hong Hou, Nansha Gao, Hang Xin
core   +1 more source

Additively Manufactured TPU Acoustic Metamaterials for High-Frequency Noise Mitigation in Dental Rotary Instruments

The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science
Noise generated by high-speed dental turbines represents a persistent challenge in dental clinics, affecting both patient comfort and the occupational well-being of medical staff.
Emilian CHIFOR, Florin-Bogdan MARIN, Mihaela MARIN   +2 more
doaj   +1 more source

Machine Learning‐Assisted Design and Performance Prediction of a Compact Dual‐Band Polarization‐Insensitive THz Metamaterial Absorber for Skin‐Cancer‐Related Refractive‐Index Sensing

Advanced Electronic Materials, EarlyView.
A compact QASRR‐based THz metamaterial absorber enables polarization‐insensitive dual‐band absorption and skin‐cancer‐related refractive‐index sensing through measurable resonance shifts. Field, surface‐current, and circuit analyses clarify the dual‐resonance mechanism, while StackNet‐assisted prediction accurately estimates the simulated absorption ...
Md. Murad Kabir Nipun, S. M. Rifatur Rana, Md. Golam Morshed, Imrose Jahan, F. A. Sabbir Ahamed, Md. Jahedul Islam   +5 more
wiley   +1 more source

Numerical Study of a near-Zero-Index Acoustic Metamaterial

, 2012
This Letter studies a two-dimensional, membrane-based acoustic metamaterial with a near-zero refractive index. It yields a frequency-dependent effective density that is near-zero at a narrow frequency band centered around its first resonant frequency ...
Fang, Nicholas X., Fang, Xuanlai, Jun Xu, Xu, Jun, Jing, Yun, Yun Jing, Nicholas X. Fang   +6 more
core   +1 more source

Doping of a plate-type acoustic metamaterial

, 2020
International audienceWe theoretically, numerically, and experimentally investigate the feasibility of acoustic doping, i.e., changing one of the effective properties of a medium by adding an impurity, to achieve supersqueezing.
Malléjac, Matthieu, Romero-Garcia, V., Groby, J.-P., Tournat, Vincent, Romero-García, Vicente, Merkel, Aurélien, Groby, Jean-Philippe, Malléjac, M., Tournat, V.   +8 more
core   +1 more source

Research Progress on Thin-Walled Sound Insulation Metamaterial Structures

Acoustics
Acoustic metamaterials (AMs) composed of periodic artificial structures have extraordinary sound wave manipulation capabilities compared with traditional acoustic materials, and they have attracted widespread research attention.
Yumei Zhang, Jie Zhang, Ye Li, Dan Yao, Yue Zhao, Yi Ai, Weijun Pan, Jiang Li   +7 more
doaj   +1 more source

Deep Learning‐Assisted Design of Mechanical Metamaterials

Advanced Intelligent Discovery, EarlyView.
This review examines the role of data‐driven deep learning methodologies in advancing mechanical metamaterial design, focusing on the specific methodologies, applications, challenges, and outlooks of this field. Mechanical metamaterials (MMs), characterized by their extraordinary mechanical behaviors derived from architected microstructures, have ...
Zisheng Zong, Pu Wen, Zhiping Chai, Dunxuan Wu, Han Ding, Zhigang Wu   +5 more
wiley   +1 more source

Design of a Programmable Active Acoustic Metamaterial [PDF]

, 2012
Metamaterials are artificial materials engineered to provide properties which may not be readily available in nature. The development of such class of materials constitutes a new area of research that has grown significantly over the past decade ...
Smoker, Jason James
core  

Evolution of Physical Intelligence Across Scales

Advanced Intelligent Discovery, EarlyView.
By following the evolution of physical intelligence across scales, this article shows how intelligence arises from materials, structures, physical interactions, and collectives. It establishes physical intelligence as the evolutionary foundation upon which embodied intelligence is built.
Ke Liu, Tianyun Huang, Aming Li, Pengyu Lv, Tingting Qin, Wenhui Chen, Hui Wei, Huiling Duan   +7 more
wiley   +1 more source

Development of a metamaterial based acoustic energy harvester

, 2023
Akustik metamalzemeler, akustik dalgaları yönlendirme ve manipüle etme konusunda sıradışı özellikleri olan yapay malzemelerdir. Lokal rezonans akustik metamalzeme, ince bir levha üzerinde kütle-yay şeklinde periyodik olarak dizilmiş bir dizi rezonatörden
Çelebi, Çağrihan
core