A client terminal reads a device ID fixedly assigned to itself, and sends the device ID to an authentication server to make a request for authentication. The inner faces form a generally rectangular mold passage having four corners. The converging upper walls of the tank contain a substantial portion of the liquid therebetween and reduce the free surface area associated with the liquid. A subscriber, such as a Financial Institution, can submit information descriptive of an access to a network resource to a risk management system. The electronic device also sends the picture timing SEI message with the common decoding unit CPB removal delay parameter or the decoding unit CPB removal delay parameters. A delay interval is measured downhole between the first arrival of the seismic energy from the surface seismic source and the transmission from the downhole seismic source.