A cement float collar is disclosed that can be positioned downhole and used in a wellbore completion operation after drilling a well-bore with casing. Subsequently, a first stress-inducing dielectric layer and a first capping layer are formed in sequence on the first conductive-type metal-oxide-semiconductor transistor; and then a second stress-inducing dielectric layer and a second capping layer are formed in sequence on the second conductive-type metal-oxide-semiconductor transistor. The mobile agent object determines a filtered set of messages that match predetermined parameters and then delivers the filtered messages to a collection host platform for storage or redirection. A first sidewall insulation film is formed on either side of the first gate electrode. Otherwise, the stages of partitioning, computing, and determining the subregion having the largest sound source power is repeated.