In order to obtain a proper pattern of the character-distribution of a set of particles, a new approach has been pointed out. Different methods of modeling the series of data coming from size characterization have been taken into consideration. In particular, Fourier analysis has been applied in order to extract new parameters (features) suitable to enhance the differences between size-distributions coming from different operating conditions in comminution. In such a way the size-distribution, related to a set of comminuted particles, has been processed as a signal (size vector) in order to extract the feature set. The results have been compared in order to understand the effectiveness of each method pointed out for data analysis. In particular, some values of the sine coefficients of the Fourier series, related to the size vector of a particle set, are able to represent the pattern of the size-distribution after comminution. As an example, size-distribution, obtained after cryo-comminution under different temperature conditions, can be modeled by a second order equation function of four selected sine coefficients of Fourier analysis.
The pattern of cryo-comminution products / Gente, Vincenzo; Giancontieri, Vincenzo; LA MARCA, Floriana; Massacci, Paolo. - ELETTRONICO. - (2006). (Intervento presentato al convegno The 5th International Conference for Conveying and Handling of Particulate Solids tenutosi a Sorrento (Naples), Italy nel August 27-31, 2006).
The pattern of cryo-comminution products
GENTE, Vincenzo;GIANCONTIERI, Vincenzo;LA MARCA, Floriana;MASSACCI, Paolo
2006
Abstract
In order to obtain a proper pattern of the character-distribution of a set of particles, a new approach has been pointed out. Different methods of modeling the series of data coming from size characterization have been taken into consideration. In particular, Fourier analysis has been applied in order to extract new parameters (features) suitable to enhance the differences between size-distributions coming from different operating conditions in comminution. In such a way the size-distribution, related to a set of comminuted particles, has been processed as a signal (size vector) in order to extract the feature set. The results have been compared in order to understand the effectiveness of each method pointed out for data analysis. In particular, some values of the sine coefficients of the Fourier series, related to the size vector of a particle set, are able to represent the pattern of the size-distribution after comminution. As an example, size-distribution, obtained after cryo-comminution under different temperature conditions, can be modeled by a second order equation function of four selected sine coefficients of Fourier analysis.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
