indignant
发表于 2025-3-23 12:45:24
,Kritische Würdigung und Ausblick, following applications of time reversal acoustics are given to medical ultrasound imaging and to ultrasonic nondestructive testing. The application to nondestructive testing has the following coverage: theory of time reversal acoustics for liquid–solid interface, experimental implementation of the
ADJ
发表于 2025-3-23 14:20:58
https://doi.org/10.1007/978-3-322-85400-1ance of homogeneous electromagnetic wave equation, gauge invariance of acoustic field equation, acoustical cloaking, gauge invariance of nonlinear homogeneous acoustic wave equation; the discovery of negative refraction is a special case of coordinate transformations or a unified theory for negative
Inkling
发表于 2025-3-23 19:53:39
Physica-Schriften zur Betriebswirtschaftystals—the multiple scattering theory is provided with details of calculation and discussion of results. An alternative theory of negative refraction based on gauge invariance (coordinate transformations) is followed with the following coverage: gauge invariance as a unified theory of negative refra
Sigmoidoscopy
发表于 2025-3-24 02:00:02
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Mortar
发表于 2025-3-24 05:48:01
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猛然一拉
发表于 2025-3-24 07:31:58
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MARS
发表于 2025-3-24 12:02:49
Spiegelungsprinzip und Dreiecksfunktionen,General covariance is explained. Then, various forms of coordinate systems are introduced: Cartesian coordinate system, cylindrical coordinate system and curvilinear coordinate system. These give rise to the concept of coordinate systems as the framework of equations.
2否定
发表于 2025-3-24 15:18:33
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拘留
发表于 2025-3-24 22:59:29
,Erratum to: Mechanik starrer Körper,The meaning of gauge invariance is given. The U(1) group symmetry is introduced. Then, the gauge invariance approach to acoustics fields is provided.
周年纪念日
发表于 2025-3-25 02:06:17
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