| refractory |
is resistance to standard treatment.
Ãâó: www.lymphomation.org/glossary.htm
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| refraction |
Deflection from a straight path undergone by a light ray or energy wave in passing obliquely from one medium (as air) into another (as glass) in which its velocity is different.
Ãâó: www.doe.mass.edu/frameworks/scitech/2001/resources...
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| refraction |
The change of direction of a sound beam when passing obliquely from one medium into another, where its wave velocity is different. Refraction is a type of ray bending that will affect acoustic returns for proper sonar imaging. This occurs when sonar pulses encounter thermal and haline discontinuities. In a normal summer thermocline environment, a side scan beam can be refracted sharply to the seafloor severely limiting range. (See Ray Bending).
Ãâó: www.instituteformarineacoustics.org/SonarPrimer/da...
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| refractory |
(1) A material of very high melting point with properties that make it suitable for such uses as furnace linings and kiln construction. (2) The quality of resisting heat.
Ãâó: www.tdcoating.com/td_glossary_terms7.htm
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| refraction |
Process by which the direction of sound propagation is changed as a result of a spatial variation in the speed of sound in the medium.
Ãâó: users.aol.com/inceusa/glossary.html
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