In a method for accessing, by application programs, resources provided by an operating system, a process receives a request for a resource and an identifier associated with the resource. The method also includes generating a first adjustment parameter based on an operating condition of the locomotive, and then applying the first adjustment parameter to the estimated wheel speed for generating a first adjusted estimated wheel speed signal used as a first input for controlling a wheel speed of at least one of the desired wheel set and the other wheel sets of the locomotive. 0hept-2-ene-2-carboxylic acid by hydrogenation of 4-nitrobenzyl -6–1-hydroxyethyl-4-methyl-3–2–3-methyl-2-oxycarbonylamino)butanoylaminomethyl)-tetrahydrofuran-3-ylthio-7-oxo-1-azabicyclo3. Once the length of the support leg is not yet good enough to abut the car seat base, or someday the lock means of the support leg is failed, the weight of the support leg would carry itself moving downward, by this way to cause the signal element to reveal a warning signal from signal window to the user.