刺穿
发表于 2025-3-28 15:19:29
,Acoustic Metamaterials for Sub-wavelength, Broadband, and Perfect Absorption in Ventilated Problemsently introduced, paying special attention to slow-sound systems. Finally, two examples of acoustic metamaterials based on these acoustic metamaterials are shown, exhibiting perfect absorption either with or without mirror symmetry.
宇宙你
发表于 2025-3-28 19:16:53
Book 2024Latest editionigh waves and water waves, in surprising ways, which include collimation, focusing, negative refraction, passive and active cloaking, sonic screening and extraordinary transmission. It covers both experimental and theoretical aspects of acoustic and elastic waves propagating in structured composites
Charade
发表于 2025-3-29 00:34:54
Book 2024Latest editionand metasurfaces including acoustic impedance gratings and mirror symmetric metamaterials, phononic subsurfaces, time-modulated and topological crystals. The latter two are illustrated by simple Python program examples. ..The broad scope gives the reader an overview of the state of the art in acous
异端邪说2
发表于 2025-3-29 06:04:23
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地牢
发表于 2025-3-29 08:56:09
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HPA533
发表于 2025-3-29 13:08:38
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怒目而视
发表于 2025-3-29 18:40:48
Enterprise-Resource-Planning-Systemeor cloaking problem for the Laplace equation is reformulated as the problem of polynomial approximation of functions. An explicit solution is given that allows cloaking of larger objects at a fixed distance from the cloaking device, compared to previous explicit solutions. In the third part we consi
Bph773
发表于 2025-3-29 20:09:34
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glomeruli
发表于 2025-3-30 01:24:05
Grundkurs Wirtschaftsinformatik surface and subsequently to their attenuation over the spatial extent of the control region. This entire mechanism is passive and is engineered offline without the need for coupled fluid-structure simulations; only the frequency and modal nature of the flow instability must be known. Disturbance st
开始没有
发表于 2025-3-30 04:27:45
Funktionsbegriff und Funktionseigenschaften. Moreover, the factorization allows to reduce the computational complexity of dispersion diagrams and of long term behaviors. Chosen simulations illustrate salient features of non-reciprocity such as strong left-right biases in the speed and power of propagated waves.