Abstract: A system and method for leveling a selected surface of a structure. The system includes a handheld mobile device and a platform leveling assembly (PLA) supportable on a structure to be leveled. The PLA includes a PLA controller and a PLA receiver communicatively coupled with the PLA controller. The handheld mobile device includes a tilt sensor configured to sense an attitude of a selected surface on which the handheld mobile device is placed; and a mobile device controller communicatively coupled to the tilt sensor and the transmitter and configured to receive signals from the tilt sensor indicating the attitude of the selected surface on which the handheld mobile device is placed.

Abstract: Disclosed is a method for disinfecting packaging. In certain aspects, the method comprises placing the packaging in a contacting chamber and directly contacting the packaging with gaseous ozone for a time interval, wherein the time interval is sufficient to substantially reduce pathogens on the packaging. In certain embodiments, the time interval is from about 3 seconds to about 30 seconds. In certain aspects, the gaseous ozone is comprised of from about 6% to about 12% ozone and the time interval is sufficient to substantially reduce pathogens on the packaging.

Abstract: Disclosed is a method for disinfecting a meat product by placing the meat in a contacting chamber and directly contacting the meat with gaseous ozone for a time interval sufficient to substantially reduce pathogens on the meat. In certain aspects, the time interval is from about 3 seconds to about 30 seconds. In further aspects, the time interval is from about 5 seconds to about 15 seconds. In yet further aspects, the time interval is about 5 seconds. In certain implementations, the gaseous ozone is introduced into the chamber at about 10 liters per minute. In further implementations, the gaseous ozone is from about 6% to about 8% ozone.