Chatter is a type of self-excited vibration that expresses variations in frequency and energy dispersion during the milling process invariably results poor part quality lower material removal rate. An efficacious chatter detection approach necessary to anticipate chatter's nascent stage. Feature extraction an important step identifying chatter. In this paper, efficient PF-based multi-mode signa...

An optimum design course is being taught to undergraduate students as a basic discipline in engineering and technology education. Optimum design aims primarily at determining the best possible combination of solutions used as design parameters to maximise or minimise an optimisation problem. The development of conventional optimum approaches has dramatically influenced modern teaching technolog...

This paper addresses the problem of automatically grouping unknown speech utterances that are from the same speaker. A clustering method based on maximum purity estimation is proposed, with the aim of maximizing the similarities of voice characteristics between utterances within all the clusters. This method employs a genetic algorithm to determine the cluster where each utterance should be loc...

Determining the optimum number of suppliers and the optimum quantities to order from each of them is a critical problem for any supply chain. This paper has mathematically arrived at conditions to identify the appropriate sourcing strategy in a multi-period scenario for a stochastic supply and a stochastic demand environment. It has also obtained the total order quantity, optimum number of supp...