One aspect of the invention relates to a PLC containing at least one waveguide on a bottom clad layer, each waveguide having a top cap layer on an upper surface thereof, and a top clad layer over the waveguides having the top cap on the upper portion thereof. The cleaning polyol can be used as a raw material in the production of further polyols. The second surface of the mount is configured for mounting to a vehicle. Furthermore, the method also includes the hardware implemented step of downloading a plurality of data segments of the data payload. The chemical filter possesses a large ion-exchange capacity per unit volume and exhibits high initial performance of eliminating ionized gaseous pollutants and excellent durability of the elimination performance. A swirl cup injector is sued to deliver the compressed air from the compressor and the cooling air from the bearing into the combustor, the swirl cup injector also acting to draw the cooling air through the bearing.