Disclosed are organic, UV resistant epoxy resins derived largely from vegetable oil. The method includes rotating the substrate to be processed on a horizontal plane, bringing a coolant gas into contact with the periphery of the resist film of the substrate to be processed which is being rotated, and cooling the substrate to be processed. The trading platform may allow anonymous counterparties in a multi-clearinghouse environment, and with full transparency and improved liquidity. If the vehicle is a sailing ship, areas of the sails are selectively roughened or widened to enhance the thrust derived from the wind. The matrix architecture created by the addition of the supervisory network allows convenient monitoring of the lower-tier buses by the first-tier master node.