A text mining program is provided that allows a user to perform text mining operations, such as: information retrieval, term and document visualization, term and document clustering, term and document classification, summarization of individual documents and groups of documents, and document cross-referencing. The carbon nanotubes are dispersed in the polymer to create an electrically-conducting polymer dispersion. In this way, copolymers having a high melt flow can be prepared while obtaining high impact strength and lower stiffness values, without the need for additional elastomeric modifiers. The voltage section includes a pluralaty of balancing switchtes configured to actively driven to provide a DC voltage to the load.