A chemical-mechanical polishing method includes applying a solid abrasive material to a substrate, polishing the substrate, flocculating at least a portion of the abrasive material, and removing at least a majority portion of the flocculated portion from the substrate. The plurality of generated shared images form the secret image when they are stacked up. Embodiments also include inferring, in dependence upon the context, a context table name and a context field name for a query, creating the query, selecting records from an information database by use of the query, whereby selected records are selected, and downloading the selected records to the client device for display. When used for the oxidative dehydrogenation of a lower hydrocarbon at a pressure above about 100 psig, the catalyst has a selectivity of at least about 40% to at least one higher hydrocarbon andor lower olefin. In response to the release indicator, the other MM node removes an association with the visitor location database, and the MM data for the mobile device is synchronized between the CS domain and the PS domain. The control system may implement a control action based upon the performance metric.