Results 191 to 200 of about 1,592,702 (395)

Carbon‐Coated Moth‐Eye Structure: An Ultrabroadband THz‐DUV Near‐Perfect Absorber

Advanced Optical Materials, EarlyView.
A silicon moth‐eye surface coated with pyrolytic carbon achieves >98% absorption from 1 to 1200 THz by combining gradient‐index matching with PyC's broadband conductivity, forming an ultra‐broadband absorber from THz to deep UV. Experimental results and simulations agreed well.
Yuki Hakamada, Maria Cojocari, Mizuho Matoba, Shotaro Kawano, Haruyuki Sakurai, Kuniaki Konishi, Daniil Pashnev, Surya Revanth Ayyagari, Vytautas Janonis, Andrzej Urbanowicz, Saulius Tumėnas, Justinas Jorudas, Irmantas Kašalynas, Janna Pennanen, Adigun Deborah Amos, Aleksandr Saushin, Georgy Fedorov, Yuri Svirko, Polina Kuzhir   +18 more
wiley   +1 more source

Integration of Acoustic Metamaterials Made of Plastic to Improve Building Acoustics

Environmental and Climate Technologies
According to the Waste Management Policy of the European Union, the recycling and reuse of various wastes is considered the most environmentally friendly and advanced waste disposal technology that has the least impact on the environment. By applying the
Naimušin Andrej, Januševičius Tomas
doaj   +1 more source

Paleo-ocean acoustics: The historical variation of low-frequency sound absorption in the world’s oceans and the implications for sea mammals [PDF]

, 1995
D. G. Browning, R. H. Mellen
openalex   +1 more source

Dynamic Humidity Modulation of Quasi‐Bound States in the Continuum by Symmetry Breaking in Geometry and Permittivity

Advanced Photonics Research, EarlyView.
This work introduces a humidity‐modulated strategy to regulate the dynamic transition from quasi‐BICs to BICs based on the symmetry‐breaking in geometry and permittivity for the hybrid photonic‐plasmonic asymmetric gratings. It proves that it is a promising approach for dynamic regulating optical properties and applied in fabricating various micro ...
Ang Xu, Qiushun Zou, Hongsen Zhao, Yimin Chen, Chenjie Gu, Dandan Qiu, Xingyu Chen, Peiqing Zhang, Xiang Shen   +8 more
wiley   +1 more source

Optical Chaos Generation and Applications

Advanced Photonics Research, EarlyView.
This review comprehensively examines optical chaos generation via feedback, injection, and optoelectronic methods, emphasizing bandwidth enhancement and time‐delay suppression. Applications include chaos‐synchronized secure communication, physical random number generation, chaotic lidar for cm‐level detection, distributed fiber sensing, and terahertz ...
Wenhui Chen, Xiaoxin Mao, Junli Wang, Rong Zhang, Longsheng Wang, Zhiwei Jia, Pu Li, Anbang Wang, Yuncai Wang   +8 more
wiley   +1 more source

Exploring Gelatin‐A and Mouse Proline‐Rich Protein 5 as Probes for Wine Polyphenol Analysis by Quartz Crystal Microbalance with Dissipation Monitoring

Advanced Sensor Research, EarlyView.
This study presents a novel strategy for the detection of polyphenols in wine. By combining Quartz Crystal Microbalance with Dissipation Monitoring and original functionalization strategies, Gelatin A from porcine skin and Mouse Proline‐Rich Protein 5, polyphenols are successfully detected directly in wine without any prior sample preparation ...
Giorgia Tori, Mariacristina Gagliardi, Francesco Lunardelli, Chiara Sanmartin, Isabella Taglieri, Gianmarco Alfieri, Margherita Modesti, Domenica Convertino, Andrea Bellincontro, Fabio Mencarelli, Marco Cecchini   +10 more
wiley   +1 more source

Acoustic Blackbody Absorption: Transcending Causality Limits through Instability-Induced Softness [PDF]

arXiv
By coupling unstable components, we demonstrate a novel approach that reduces static modulus to zero, eliminating causality-imposed absorption limitations in acoustics. Our heuristic model simulations achieve ultra-broadband absorption over 99% for wavelengths greater than 132 times the absorber thickness.
arxiv  

Reverberation-Room Acoustics. II: Effects of Absorptive Floor, Suspended Ceiling Panels, and Diffusers on Speech and Music

, 1966
L. P. Delsasso, R. W. Leonard, Vern O. Knudsen   +2 more
openalex   +1 more source

Ammonia Dynamics in the Human Body: Insights in Biomedical Sensing Technologies

Advanced Sensor Research, EarlyView.
Ammonia (NH3) is a significant biomarker in diagnostics, affecting the respiratory system, stomach, liver, kidneys, bladder, and gastrointestinal tract. NH3 detection, using sensors, has the potential to improve medical diagnosis. This review examines recent advancements in NH3 sensing technologies and explores future research directions, including ...
Annelot Nijkoops, Manuela Ciocca, Martina Aurora Costa Angeli, Silvia Pogliaghi, Soufiane Krik, Enrico Avancini, Niko Münzenrieder, Paolo Lugli, Luisa Petti   +8 more
wiley   +1 more source

Bifunctional WO3 Photoelectrodes Decorated by Inkjet Printing for Solar Supercapacitors

Advanced Sustainable Systems, EarlyView.
WO3 bifunctional photoelectrodes, produced by screen printing and then superficially decorated by inkjet printing, are successfully applied to prepare solar supercapacitors. Under illumination, the areal capacitance is enhanced thanks to the positive contribution of the photogenerated charges and the higher exposed area; its value becomes even more ...
Nicola Sangiorgi, Alex Sangiorgi, Alberto Soccio, Marzio Rancan, Lidia Armelao, Alessandra Sanson   +5 more
wiley   +1 more source