Results 81 to 90 of about 2,694 (304)
The Impact of HVAC Systems on Speech Intelligibility in University Classrooms
Archives of AcousticsGood speech intelligibility in university classrooms is crucial to the learning process, ensuring that students can clearly hear all conversations taking place in the classroom.
Akın OKTAV +3 more
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Acoustic modelling of sports halls, two case studies [PDF]
, 2015 To achieve a preferable sound field in traditionally shoebox-shaped sports halls, the sound absorbing material is often applied in the upper part of the hall.
Hornikx, MCJ Maarten +5 more
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Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration
Advanced Materials, EarlyView.A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang +7 more
wiley +1 more source
Perceptual Evaluation of Acoustic Level of Detail in Virtual Acoustic Environments
AcousticsVirtual acoustics enables the creation and simulation of realistic and ecologically valid indoor environments vital for hearing research and audiology. For real-time applications, room acoustics simulation requires simplifications.
Stefan Fichna +3 more
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Advanced Materials, EarlyView.Vertical organic electrochemical transistors (vOECTs) are limited in speed by ion‐impermeable metal electrodes that slow ion injection. Using ion‐permeable PBFDO top electrodes allows direct vertical ion injection into BBL channels, achieving high current densities (>400 A cm−2), large on/off ratios (>106), and ultrafast switching in 28 µs. This sets a
Han‐Yan Wu +14 more
wiley +1 more source
A GEOMETRICAL STUDY OF THE WAVE FRONTS SPREADING IN CIRCULAR SPACES ACOUSTICS
Journal of Industrial Design and Engineering Graphics, 2013 The paper deals with the behavior of the reflected acoustic rays in circular auditoriums. It emphasis on the ray tracing method used in geometrical acoustics, the definition and the properties of the wave front and the geometric property of all the rays ...
OPREA Gabriel
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Switchable Magnonic Crystals Based on Spin Crossover/CrSBr Heterostructures
Advanced Materials, EarlyView.Multiscale modeling is employed to investigate the functionality of a light‐controlled, tunable magnonic crystal based on spin‐crossover Fe‐pz molecules integrated with a monolayer of CrSBr. Ab initio simulations confirm that the molecules remain functional on the CrSBr surface, while a semiclassical elastic model demonstrates that light‐induced ...
Andrei Shumilin +4 more
wiley +1 more source
Geometrical-Acoustics-based Ultrasound Image Simulation
, 2012 Brightness modulation (B-Mode) ultrasound (US) images are used to visualize internal body structures during diagnostic and invasive procedures, such as needle insertion for Regional Anesthesia. Due to patient availability and health risks-during invasive
Hentschel, Bernd +3 more
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Advances in Magnesium‐Based Thermoelectrics: A Critical Review
Advanced Materials, EarlyView.Magnesium‐based thermoelectric materials have emerged as promising candidates for low‐to‐mid‐temperature energy conversion due to their abundance, low cost, and competitive performance. This review summarizes recent advances in Mg3X2, MgAgSb, and Mg2X systems, covering transport mechanisms, fabrication strategies, stability challenges, and device ...
Li‐Min Zhang +5 more
wiley +1 more source
On the Reflection of a Spherical Sound Wave from a Finite Size Surface
Applied SciencesRoom acoustics computer models based on geometrical acoustics usually handle the sound reflections by the assumption of plane waves. However, if the sound source is a point source, which is usually the case, the spherical wave reflection would be more ...
Jens Holger Rindel
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