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SABINE REVERBERATION FORMULA

Earliest formula named after investigator for connecting the reverberation of an enclosure. T seconds, with the volume. V in cubic metres, and the total acoustic absorption in the enclosure. 2jiS. where a is the absorption coefficient of a surface of 5 square metres. The formula is I=06V/'

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SABKHA

A flat salt-encrusted coastal plain, common in Arabia.

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SABLE

1 Hair obtained from a small animal of the weasel family and used as the filling for signwriters' brushes. 2 Heraldic term for black, sabulose,

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SACCADIC EYE MOVEMENTS

The rapid, ballistic movements of the eyes used in scanning a scene: these involuntary eye movements occur about every quarter of a second even when the eyes are fixated on an object,

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SACCHARIDES

Carbohydrates, which according to their complexity are usually divided into mono-, di-. tri- and polysaccharides.

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SACCHARIMETER

A hydrometer which is used to determine the concentration of sugar in a solution,

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SACCHARIMETRY

The estimation of the percentage of sugar present in solutions of unknown strength, esp by measurements of optical activity,

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SACCHARIN

2-sulphobenzitnide. A white crystal

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SACCHAROIDAL TEXTURES

Granular textures which resemble sugar: found esp in limestones and marbles.

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SACCHAROMYCES CEREVISIAE

The yeast used widely in bread and alcohol manufacture. It can also be used as an eukaryotic host for growing and expressing DNA sequences,

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