| 摘要 |
The method according to the invention comprises elaborating a sinusoidal mathematical model representing the density y versus the axial position x, conducting experimental measurements of density and of moisture at a plurality of points along the longitudinal axis of the cigarette, calculating a regression determination coefficient from the measured values, calculating the position of the strengthened tip from the phase phi and the parameters of the model and from experimentally determined constants, calculating the shift of the strengthened tip relatively to the cut and calculating the strengthening index from the values of said constants.
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