Results 21 to 30 of about 4,835 (217)
Normal Mode Analysis of the Nonlinear Acoustic Wave Equation
Walailak Journal of Science and Technology, 2013 Second-harmonic generation in non-linear media is investigated. A normal mode analysis is proposed based on the Westervelt equation under the second-order approximation in nonlinear acoustics.
Mohamed Ibrahim Ahmed OTHMAN +2 more
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Asymptotical approximation of one dimensional gas dynamics problem
Lietuvos Matematikos Rinkinys, 2013 We analyze nonlinear one dimensional gas dynamics system. The constructed asymptotic approximation which describes periodic acoustics waves resonant interaction is uniformly valid in the long time interval.
Aleksandras Krylovas +1 more
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Forward propagation of acoustic pressure pulses in 3D soft biological tissue [PDF]
Modeling, Identification and Control, 2006 A simulation method for forward propagation of acoustic pressure pulses in a medium with three-dimensional (3D) spatially-variable acoustic properties is presented.
Trond Varslot, Svein-Erik Måsøy
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Nonlinear Thermotics:Designing Thermal Metamaterials with Temperature Response
Nantong Daxue xuebao. Ziran kexue ban, 2021 Both nonlinear phenomenon and heat transfer are important topics in physics. However, there has not been a mature subject called "nonlinear thermotics" like its counterpart in optics or acoustics.
DAI Gaole, HUANG Jiping
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Exploring the Parametric Effect in Nonlinear Acoustic Waves
IEEE Access, 2023 Nonlinear acoustics is a critical area of study with practical applications in fields such as underwater communications, medical imaging, non-destructive testing, and sonar.
Maria Campo-Valera +4 more
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Theory, Analysis, and Applications of the Entropic Lattice Boltzmann Model for Compressible Flows
Entropy, 2020 The entropic lattice Boltzmann method for the simulation of compressible flows is studied in detail and new opportunities for extending operating range are explored.
Nicolò Frapolli +2 more
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Biosensors, 2022 Gas bubbles present in liquids underpin many natural phenomena and human-developed technologies that improve the quality of life. Since all living organisms are predominantly made of water, they may also contain bubbles—introduced both naturally and ...
Ivan S. Maksymov +2 more
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Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying
Advanced Engineering Materials, EarlyView.An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara +8 more
wiley +1 more source
Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials
Advanced Engineering Materials, EarlyView.Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
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Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes
Advanced Functional Materials, EarlyView.We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar +13 more
wiley +1 more source