Results 21 to 30 of about 169,465,978 (247)

46th Winter School on Wave and Quantum Acoustics XLVth Jubilee Winter School on Environmental Acoustics and Vibroacoustics Szczyrk, Poland, February 27 –March 2, 2017

open access: yesArchives of Acoustics, 2017
46th Winter School on Wave and Quantum Acoustics constitutes a platform for sharing the results and achievements obtained in different branches of physical acoustics.
Winter Schools on Acoustic
doaj   +1 more source

Silica optical fiber integrated with two-dimensional materials: towards opto-electro-mechanical technology

open access: yesLight: Science & Applications, 2021
In recent years, the integration of graphene and related two-dimensional (2D) materials in optical fibers have stimulated significant advances in all-fiber photonics and optoelectronics. The conventional passive silica fiber devices with 2D materials are
Jin-hui Chen   +3 more
doaj   +1 more source

Photoinduced semiconductor-metal transition in ultrathin troilite FeS nanosheets to trigger efficient hydrogen evolution

open access: yesNature Communications, 2019
While earth-abundant materials are promising catalysts for renewable energy conversion, such materials tend to display poor activities. Here, authors show FeS troilite nanosheets to undergo a near-infrared light-triggered transition to a phase that ...
Gang Zhou   +10 more
doaj   +1 more source

47th Winter School on Wave and Quantum Acoustics XLVIth Winter School on Environmental Acoustics and Vibroacoustics Szczyrk, Poland, 26.02–01/02.03.2018

open access: yesArchives of Acoustics, 2018
47th Winter School on Wave and Quantum Acoustics constitutes a platform for sharing the results and achievements obtained in different branches of physical acoustics.
Winter Schools on Acoustic
doaj   +1 more source

Solid state fermentation for the production of lipolytic fungal enzymes [PDF]

open access: yes, 2007
The production of lypolitic moulds in solid state fermentation was studied. Aspergillus oryzae and Rhizopus oryzae were grown on rice hulls using different media.
Molinari, F.   +13 more
core   +1 more source

Q-factor enhancement of Fano resonance in all-dielectric metasurfaces by modulating meta-atom interactions

open access: yesScientific Reports, 2017
We numerically investigated the effects of meta-atom interactions on the Fano resonance in all-dielectric metasurfaces by introducing alternately flipped asymmetric paired bars (APBs) and split asymmetric paired bars (SAPBs).
Guanghou Sun   +4 more
doaj   +1 more source

Design of interdigitated transducers for acoustofluidic applications

open access: yesNanotechnology and Precision Engineering, 2022
Interdigitated transducers (IDTs) were originally designed as delay lines for radars. Half a century later, they have found new life as actuators for microfluidic systems.
Shuren Song   +3 more
doaj   +1 more source

45th Winter School on Wave and Quantum Acoustics and XLIVth Winter School on Environmental Acoustics and Vibroacoustics

open access: yesArchives of Acoustics, 2016
On behalf of Upper Silesian Division of the Polish Acoustical Society (main organizer) and Committee of Acoustics of the Polish Academy of Sciences (co-organizer) we are pleased to announce that it is nearing the end of preparations for the conduct ...
45th Winter School on WQA; XLIVth Winter School on EA&V
doaj   +1 more source

Acoustic Tamm states of three-dimensional solid-fluid phononic crystals

open access: yesThe Journal of the Acoustical Society of America, 2018
In this work, the existence and propagation of acoustic Tamm states at the interface of air and a face-centered cubic solid-fluid phononic crystal composed of spherical air voids interconnected by cylindrical air channels are demonstrated. Supercell band structure computations via the finite element method reveal surface bands for Tamm states on (100),
Korozlu, Nurettin   +3 more
openaire   +3 more sources

Bidirectional acoustic negative refraction based on a pair of metasurfaces with both local and global PT-symmetries

open access: yesScientific Reports, 2020
Negative refraction plays an important role in acoustic wave manipulation and imaging. However, conventional systems based on acoustic metamaterials suffer from the limits induced by loss-related and resolution issues.
Jun Lan   +4 more
doaj   +1 more source

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