Results 181 to 190 of about 1,580,055 (393)

Reconfigurable Manipulation of Sound with a Multimaterial 3D Printed Origami Metasurface

Advanced Materials Technologies, EarlyView.
This paper demonstrates a programmable origami‐inspired metasurface, using multimaterial three‐dimensional printing technology to achieve reconfigurable sound manipulation. The unique bistable design enables rapid switching between configurations, allowing for precise control of acoustic reflections with minimal mechanical input. The results showcase a
Dinh Hai Le, Felix Kronowetter, Yan Kei Chiang, Marcus Maeder, Steffen Marburg, David A. Powell   +5 more
wiley   +1 more source

Studies into the detection of buried objects (particularly optical fibres) in saturated sediment. Part 2: design and commissioning of test tank

, 2007
This report is the second in a series of five, designed to investigate the detection oftargets buried in saturated sediment, primarily through acoustical or acoustics-relatedmethods.
Evans, R.C.P., Leighton, T.G.
core  

Low‐Noise, Unbiased Ferromagnetic‐Resonance‐Driven Thin‐Film Integrated Giant Magnetoimpedance Sensors

Advanced Materials Technologies, EarlyView.
Utilizing a novel (Ni81Fe19/Ti)4/Cu/(Ni81Fe19/Ti)4 thin‐film multilayer with low coercive field, low damping and a superior GMI ratio, a compact, low‐noise unbiased FMR‐driven integrated GMI sensor with a superior magnetic noise performance of ≈100 pT/√Hz is first demonstrated, owing to reduced phase noise from well‐defined aligned magnetic domains and
Bin Luo, Xianfeng Liang, Huaihao Chen, Cai Müller, Paul Raschdorf, Phillip Durdaut, Michael Höft, Jeffrey McCord, Nian‐Xiang Sun   +8 more
wiley   +1 more source

The restoration potential of offshore mussel farming on degraded seabed habitat

Aquaculture, Fish and Fisheries, Volume 2, Issue 6, Page 437-449, December 2022., 2022
Due to the artificial structures that accumulate mussels and exclude destructive fishing practices, the seabed could be restored by the installation of mussel farming structure. After four years, there was a significantly greater abundance of mobile taxa compared to the Controls that remained open to trawling. Commercial European lobster and brown crab
Danielle Bridger, Martin J. Attrill, Bede F. R. Davies, Luke A. Holmes, Amy Cartwright, Siân E. Rees, Llucia Mascorda Cabre, Emma V. Sheehan   +7 more
wiley   +1 more source

Sensitivity of Room Impulse Responses in Changing Acoustic Environment [PDF]

arXiv
Changes in room acoustics, such as modifications to surface absorption or the insertion of a scattering object, significantly impact measured room impulse responses (RIRs). These changes can affect the performance of systems used in echo cancellation and active acoustics and support tasks such as navigation and object tracking.
arxiv  

Thermal Dynamics Induced by Surface Acoustic Waves in Lanthanide‐Doped Core@Multishell Nanoparticles

Advanced Optical Materials, EarlyView.
Accurate local temperature readout in integrated nanoscaled devices driven by high‐frequency surface acoustic waves (SAWs) has a strong technological interest. This image illustrates how lanthanide‐doped core@multishell nanoparticles can be employed as local temperature probes in SAW applications.
Pablo B. Pinto, Pedro W. Matrone, Flávia S. Ferreira, Paulo V. Santos, Fernando A. Sigoli, Odilon D. D. Couto Jr.   +5 more
wiley   +1 more source

Slow Hot Carrier Cooling and Quasi‐Fermi Shift Dynamics in Few‐Layer α‐In2Se3 via Transient Absorption Spectroscopy

Advanced Optical Materials, EarlyView.
Ultrafast transient absorption spectroscopy reveals that α‐In2Se3, a non‐toxic and air‐stable 2D material, demonstrates slow hot carrier (HC) cooling (≈35 ps), comparable to perovskites. This prolonged cooling can enable efficient energy extraction. Comprehensive analysis captures key HC dynamics, such as quasi‐Fermi shifts, many‐body interactions, and
Sung Bok Seo, Sanghee Nah, Muhammad Sajjad, Sang Ho Suk, Sangwan Sim   +4 more
wiley   +1 more source

Effect of Acoustic Reflector's Surface Density on Sound Absorption Characteristics and Stage Acoustics [PDF]

, 2012
Young‐Sun Kim, Jeong-Ho Jeong, Jin Yong Jeon, Myeong-Seok Kim   +3 more
openalex   +1 more source

Chemical AI in the Limelight: The Contribution of Photochromic Materials and Oscillatory Chemical Reactions

Advanced Optical Materials, EarlyView.
Photochromic compounds are versatile ingredients for the development of Chemical AI. When they are embedded in a tight microenvironment, they become Markov blankets. They are also valuable for processing Boolean and Fuzzy logic. They contribute to neuromorphic engineering in wetware based on opto‐chemical signals exchanged with oscillatory chemical ...
Pier Luigi Gentili
wiley   +1 more source

Active Formation of Friedrich–Wintgen Bound States in the Continuum in a Hybrid Plasmonic–Photonic Structure

Advanced Photonics Research, EarlyView.
A method is proposed for actively generating Friedrich–Wintgen bound state in the continuum (FW BIC) in a hybrid plasmonic–photonic structure near the commercially important communication wavelength. In addition, interactions between dark and bright modes can further form the FW BIC and support electromagnetically induced transparency‐like with maximum
Xiao‐Fei Yan, Xin‐Yang Wang, Qi Lin, Ling‐Ling Wang, Gui‐Dong Liu   +4 more
wiley   +1 more source