Abstract: Embodiments of the present invention dynamically generate customized online advertisements. A dynamic advertisement may take the form of a paid search result. The advertisement is dynamic in the sense that all of or portions of the advertisement are generated using content from a web page operated by an entity associated with the advertisement. The web page used to generate the dynamic ad may be the entity's most responsive web page within normal search results. Embodiments of the invention use content from the most responsive web page to generate one or more dynamic ad features. Possible dynamic ad features include the title of the advertisement, a landing page of the advertisement, a caption on the advertisement, and a dynamic annotation of the advertisement.

Abstract: Carbon-containing fly ash has been treated with optimum amounts of ozone. There is homogenous treatment of the fly ash with ozone and oversaturation with ozone is avoided.

Abstract: Air quality control system scrubs flue gas of SO.sub.2 and particulates with a slurry of lime/limestone and water. The contact between the slurry is in a centrifugal section which is the upper part of a tank in which the chemical action is completed and from which the slurry is recirculated to the contact section. The gas to be scrubbed is inserted into a circular path within the scrubbing section into which the slurry is sprayed. The treated gas is withdrawn from the circular path in heat exchange relationship with the incoming gas.