A control system for continuous mining machine to control the mining horizons of roof and floor horizons relative to the rock boundaries of an underground coal seam or ore vein. The vessel contains at least three elements in series and at least two of these elements have standard specific fluxed that differ by at least 50%. A pinion shaft is fitted over an outer circumference of the output shaft through a first bearing and second bearing and a one-way clutch is provided for transmitting the rotation of the output signal to the pinion shaft. The armrest is inhibited from pivoting about the axis of rotation when the headrest is in the extended position. In response, the client computer determines that the user has not yet been authenticated for the second application and sends a request to the server for an authentication ticket for using the second application. The compositions are best suited as a chemically amplified resist material for micropatterning in the manufacture of VLSI.