In one embodiment, a method includes detecting termination of a first connection between a first caller and a first agent during a communication session between the first caller and the first agent. Systems and methods provide for building a model of the particular asset requirement for a specific purpose and a model of the range of capabilities that a particular asset can provide. Furthermore, a merge candidate indicated by the merge index of a current block can be efficiently reconstructed irrespective of a network environment by adaptively generating a merge candidate based on the number of valid merge candidate. The controller estimates the energy required to activate the fuel cell, and controls the power regulation device when the energy required to activate the fuel cell is greater than or equal to a determination value so that the fuel cell is not activated and power from the battery is supplied to the drive device. The swinging element swings the blasting nozzle in a plane perpendicular to a transporting path of the semiconductor wafer along the mesh conveyor.