An improved laryngoscope blade is described wherein the blade includes a conduit for attaching detachable tubing for delivery of oxygen to the airway during laryngoscopy. From the elemental analysis, an estimate of the carbon content and the sulfur, vanadium, nickel, titanium andor molybdenum content of the formation is determined. Thus, the thermal processing apparatus can efficiently irradiate an auxiliary ring with reflected light from the lower lamp group and improve temperature uniformity when heating the substrate. The controller is coupled to the identifier and uses the model parameter to determine a reference input so that an output of the object converges to a desired value. By this arrangement, upon the bumper system receiving an end impact parallel a length of the tube, the first and second ring sections telescopingly collapse with a predictable and consistent multi-phase deformation sequence where a third ring section forms between the first and second ring sections. Methods of producing large amounts of recombinant proteins by employing DNA constructs having a polypeptide of interest preceded by a novel Pichia methanolica secretory signal sequence.