Incisions are made in the ear canal and the remnant of the eardrum is lifted up. The ear canal may be widened. A tissue graft from the ear muscle (fascia) or cartilage is obtained and is slid under the eardrum. Packing is placed in the middle ear and ear canal to hold the graft and drum against each other to heal.
ECC stands for Enterprise Central Component. The purpose of positioning it as ECC is to enable SAP to build and develop an environment of other products that can function upon the foundation of the central component. R/3 Enterprise was replaced with the introduction of ERP Central Component.
Engine Control Module The engine control module (ECM) is the control center for the throttle actuator control (TAC) system. The ECM determines the drivers intent and then calculates the appropriate throttle response. The ECM achieves throttle positioning by providing a pulse width modulated voltage to the TAC motor.