In 1955, the Pizza Hut restaurant was first commenced. Its first logo featured its only mascot Pete holding the words Pizza and Hut. 1967â1999. In 1967, the chain began using a new and simplified logo featuring the now-famous red roof design (which is still used albeit in a modified form today).
Oxygen therapy can be delivered using a low flow or high flow system. All high flow systems require humidification. The type of humidification device selected will depend on the oxygen delivery system in use, and the patient's requirements. The humidifier should always be placed at a level below the patient's head.
In Air cooled engines there are two types. One is pressure cooling second is natural incoming force system 2. In water cooling system also there are 2. One is thermosyphon second is forced feed. 3.In air cooled system fins are provided around the cylinder and head to transmit heat 4.