An internal combustion engine having a first turbine, a first compressor, an intake manifold in fluid communication with the first compressor, an exhaust manifold in fluid communication with the first turbine, and an oxygen sensor in fluid communication with the intake manifold, disposed on an outlet side of the first compressor. According to the stabilization method of the present invention, arylcarboxylic acid and pharmacologically acceptable salts thereof, particularly pranoprofen, can be stabilized at every temperature range, particularly at lower temperatures, thereby making the production of an aqueous solution to be used as an eye drop, nasal drop, ear drop and the like possible. In an embodiment, the first bond ring is a eutectic bond and the second bond ring is at least one of an organic material and a eutectic bond. An opposite air outlet is defined in a bottom side of the sidewall. The ball striking surface may include grooves or scorelines to affect the launch angle, spin, andor roll of the ball during a putt.