An optical waveguide includes an optical waveguide main body and mirrors. The dehydrogenation feed stream and the at least one stabilizing compound are contacted with a first dehydrogenation catalyst in the first dehydrogenation reaction zone under dehydrogenation conditions to convert at least a portion of the dehydrogenatable hydrocarbon into an unsaturated six-membered carbon ring compound and hydrogen. More specifically, each of the capacitors comprise a vertical capacitor having an upper metal plate vertically over a lower metal plate and each metal gate of the transistors and each upper metal plate of the capacitors comprise the same metal level in the integrated circuit structure. Other key split generators may include a token split generator for generating a token key split based on label data, a console split generator for generating a console key split based on maintenance data, and a biometric split generator for generating a biometric key split based on biometric data. The present invention includes a case, a tub provided within the case, a drum rotatably provided within the tub, a condensing duct connected to the tub, the condensing duct sucking air of the tub therein to condense the sucked-in air, and a drying duct connected to a front portion of the tub and the condensing duct to supply dry and hot air to the tub.