A binary allow braze composition has been prepared and used in a bonded article of ceramic-ceramic and ceramic-metal materials. A segment of the network is monitored to obtain information about predetermined types of incidents which occur. Because a rectangular waveguide is bent substantially at a right angle, and the magnetron and the resonator are disposed at one side on the basis of a waveguide space of the waveguide, thus reducing the size and an installation space of the plasma lighting system. The host computer, the barometer, the heat oxidation processing device and the thickness-measuring device are connected via a network so as to transmit data to and from each device. The devices are small, thin and lightweight, yet provide sufficient power for many handheld electronics.