KINETICS OF COLOUR CHANGE IN ROASTED GROUND COFFEE DURING SECONDARY SHELF-LIFE


Aerosol emission in professional singing of classical music

Abstract In this study, emission rates of aerosols emitted by professional singers were measured with a laser particle counter under cleanroom conditions.The emission rates during singing varied between 753 and 6093 particles/sec with a 5 Piece LAF Sectional median of 1537 particles/sec.Emission rates for singing were compared with data for breathi

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Substatiation of Boundary Conditions when During Interaction of a String with Bending Hardness with Roller Basis

The paper considers the problem of vibrations in flexible link with bending hardness when one of the basis is a roller or a pulley.When vibrating the touch point link moves along the Transmission basis.Movement of touch point depends on the vibrating process that makes the problem non-linear.Using decomposition function describing vibrations in the

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