The Advanced Logic System is a complete control system architecture, based on a hardware platform rather than a software-based microprocessor system. 1 to 20 parts by weight of hydrophobic inorganic oxide fine particles having hydrophobic groups and having an average particle size of 0. When this probability is high, the control unit controls the throttle valve to execute a freeze protection operation, including a valve opening and closing operation of the throttle valve, before the throttle valve freezes. The systems and methods further may include forming an electrical connection between an electric current source and a granular resistive heater that forms a portion of the subterranean structure, forming the granular resistive heater, andor forming the subterranean structure. The elastic cords can be composed of woven, flattened BUNGEE cord material.