A valve for controlling a flow of pressurized abrasive particles to a machine includes a valve body that defines a particle chamber having an inlet port and an exit orifice. A plurality of objects, which satisfy conditions predetermined depending on physical characteristics of delineators, are determined to be objects composing a delineator group. The dispensing mechanism further includes an actuation mechanism that comprises a trigger associated with the housing and having a ready and a fired position with respect thereto. In an embodiment, the determination of the magnitude of the programmable portion is performed by providing an input to an analog to digital converter with the voltage reference driving the ADC. IO gate lengths are defined by the gate trim photomask. According to the method of the present invention, the context of user equipment of multimedia broadcast multicast service in the radio network controller is deleted, so that the waste of radio resources is prevented, the hidden troubles induced by the inconsistency of data among the network elements is removed, and a foundation for the correct realization of future products is laid.