Abstract: Systems and methods are described herein for determining user exposures to content, such as content presented by physical objects (e.g., advertisements on billboards). The systems and methods may determine a probability (an “exposure probability”) that a user has viewed or consumed content, information, or other visual media presented by a physical object, such as a billboard, vehicle, sign, or other structure, and provide the determined probability to various attribution systems, such as systems that attribute user engagements (e.g., store visits, app downloads, website visits, product purchases, and so on) to earlier content exposures.

Abstract: A mixing apparatus is disclosed. The mixing apparatus comprises a mixing device having a constant flow area. The mixing device is configured to create a shearing environment. Several types of mixing apparatus are disclosed. Methods for producing aqueous fuel emulsions with consistently uniform dispersed phase particle sizes using a mixing apparatus are also disclosed.

Abstract: A mixing apparatus is disclosed. The mixing apparatus comprises a mixing device having a constant flow area. The mixing device is configured to create a shearing environment. Several types of mixing apparatus are disclosed. Methods for producing aqueous fuel emulsions with consistently uniform dispersed phase particle sizes using a mixing apparatus are also disclosed.

Abstract: A method for manufacturing an emulsifier package is disclosed. The method comprises blending a flow of fuel soluble product, a flow of stabilizer, and a flow of water in a mixing vessel to form a mixture. Mixing the mixture in the mixing vessel and recirculating the mixture through the mixing vessel. Lastly, shearing the mixture with a shearing device at a rate of about 27,500 shears per second to about 87,500 shears per second. A method for manufacturing an aqueous fuel emulsion is also disclosed.