In a sliding bearing device for continuous molten metal plating bath rolls, a shaft and a bearing composed of a sliding and contacting hard ceramic sinter are retained displaceably by a steel retainer, and by using such bearing device, therefore, a stable operation of continuous molten metal plating is achieved. A full release actuator is disposed adjacent to the valve stem of the aerosol can and has a trigger and a discharge nozzle such that when the trigger is pressed the contents of the aerosol can are dispensed through the discharge nozzle. In response to determining that uplink resources are available on the non-contention-based channel for the user equipment, the uplink resources are dedicated on the non-contention-based channel to the user equipment and an indication of the dedicated uplink resources is communicated to the user equipment. Still further, a first index c1 representing an adequacy of the navigation route r in view of the second algorithm is evaluated.