Abstract
Electromagnetic radiation whose wavelength is marginally shorter than the upper limit of perception for the human eye is termed “ultraviolet”. By analogy, the term “ultrasound” is used to describe sound waves whose frequencies lie within the range 20 to 10000 kHz.
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© 1989 Springer-Verlag Berlin Heidelberg
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Ley, S.V., Low, C.M.R. (1989). Introduction. In: Ultrasound in Synthesis. Reactivity and Structure Concepts in Organic Chemistry, vol 27. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-74672-7_1
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DOI: https://doi.org/10.1007/978-3-642-74672-7_1
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-74674-1
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