Surgicel is a hemostatic agent (blood-clot-inducing material) made of an oxidized cellulose polymer (the unit is polyanhydroglucuronic acid), manufactured by the Ethicon subsidiary of Johnson And Johnson. It was introduced into clinical practice in 1947. It is used to control post-surgical bleeding.
Multi Stage: (More than one level of heating or cooling) Multi Stage heating means that you have two levels of heat in your home. You will perhaps have a furnace and another method of heat like a solar panel. The second level of heat is commonly referred to as an emergency heat setting.
3.39, condenser system I, called the first or high pressure stage, as a rule, the fan cools the surrounding air. In some cases, water can be used for air cooling is much more common. Evaporator system I used for cooling the condenser system II called the second or low pressure stage. Unit that is evaporator system I and capacitor II system is often referred to as inter-stage or cascade capacitor. As noted earlier, cascade systems typically use two different refrigerants (i.e., one INB each stage). One type is used for the low degree, and the other for higher stage.