The two most commonly used clemency powers are those of pardon and commutation. CSI inverter commutation methods include load commutation and parallel capacitor commutation. More recent developments include brushless DC designs with electronic commutation. The least complicated SCR circuits employ natural commutation rather than forced commutation. He was given a presidential commutation of sentence and released. Other types of DC motors require no commutation. The allowance is calculated on the original pension without commutation. The interplay with quantum mechanics is discussed further in the article on canonical commutation relations. In truth-functional propositional logic, "commutation", or "commutativity" refer to two valid rules of replacement. Judge Walton queried aspects of that presidential commutation. In 1838, parliament introduced a Tithe Commutation Act for Ireland. Peltier was next eligible for commutation in 2018. It represents the fraction of the commutation period T during which the switch is On. He eventually served nearly four years until a presidential commutation freed him in 1986. This allows smooth commutation and avoids shoot through by only selecting valid states.