A method and system for providing a common network service interface to one or more application programs. In addition, at least two separate line or conduit systems and outlets connected thereto are provided, from which at least one substance can be discharged. The baked photoresist serves as a mask for subsequent etching of the exterior of the closed-form Josephson junction. The shade is located around the container and mounted to the base, the shade defining a hole communicated with an outlet of the mist generator such that mist converted in the container by the mist generator can be delivered to the ambient through the hole.