A device for cooled recirculation of exhaust gas of an internal combustion engine charged with the aid of an exhaust gas turbocharger, the internal combustion engine having a fresh gas system and an exhaust gas system, which are connected to a two-stage exhaust gas cooler via an exhaust gas recirculation line. An image to be encrypted is first multiplied by a random phase function. And the power source and control module is configured to be located external to the body of the subject, to cause the pulse generator module to affect the therapy, and to provide power wirelessly to the pulse generator module. The traders input code information related to the manufacturing capacities, information of selling or buying, bidding prices, size information of manufacturing capacities to be traded, and periodic information of manufacturing capacities to be traded.