Fuel Additive Systems â used in conjunction with a diesel catalyst, this type of DPF uses a fuel additive in order to aid the regeneration process. The additive enables regeneration to take place at a lower temperature of 400Â°C in conditions where regeneration would not normally be possible.
Similar to Mozart, Beethoven toured as a child prodigy. He arrived in Rotterdam in autumn 1781. Six years later, in 1787, Ludwig travelled to Vienna in Autumn where he first met Mozart, who Ludwig wanted to study under.
Perhaps Beethoven's most important aristocratic patron was Archduke Rudolph, the youngest son of Emperor Leopold II, who in 1803 or 1804 began to study piano and composition with Beethoven. The cleric (Cardinal-Priest) and the composer became friends, and their meetings continued until 1824.