契约 发表于 2025-3-21 17:15:06

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Assemble 发表于 2025-3-21 20:48:02

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arthrodesis 发表于 2025-3-22 03:51:25

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Nebulous 发表于 2025-3-22 07:59:22

https://doi.org/10.1007/978-3-662-59040-9tals and layered materials have been obtained by measuring the amplitude or the phase angle of the photoacoustic signal. These preliminary results show potential applications of this instrument in nondestructive testing of materials.

hemoglobin 发表于 2025-3-22 12:28:32

Chinesische Medizin für die westliche Welt industrial and medical sectors, and commercial versions are starting to appear. This paper is concerned with initial experience with a scanning acoustic microscope in one industrial laboratory, and describes likely future requirements for such instrumentation.

泛滥 发表于 2025-3-22 15:17:13

Funktionskreise – die chinesische Organlehreot been extensively investigated so far, because the observation technique has not been established. In this work, we describe two types of new applications of scanning acoustic microscope to the study of fracture and wear. First, detailed features of subsurface cracks in silicon nitride were observ

使迷醉 发表于 2025-3-22 18:22:45

Chinesische Medizin für die westliche Weltrpose of our work is to discover applications in materials studies for which acoustic microscopy is suitable, and then to exploit the technique in tackling problems in those areas. The microscopes have been operating for a little under one year now, and in these Proceedings we summarise our progress

MELD 发表于 2025-3-22 22:07:07

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Triglyceride 发表于 2025-3-23 02:28:49

Chinesische Medizin für die westliche Weltoupling piece in front of a conventional acoustic lens radically reduces the aberration. This is so not only when the coupling piece is concentric with the lens, but when the lens is axially displaced. This means that diffraction limited focussing can be achieved over a wide range of depths, typical

GLIB 发表于 2025-3-23 09:08:42

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查看完整版本: Titlebook: Acoustical Imaging; Eric A. Ash,C. R. Hill Book 1982 Springer Science+Business Media New York 1982 Apertur.Axicon.Planar.Speckle.critical