Abstract:
An adding apparatus according to an example of the present invention comprises: a time adder for outputting a time addition signal using time information of the first input signal and time information of the second input signal, if a first input signal synchronized according to a unit time delay and a second input signal synchronized with the unit time delay; and a carry digit processor for outputting a carry generation signal by conducting a carry-lookahead operation corresponding to the time addition signal according to the unit time delay.
Abstract:
Disclosed is a method of preparing primary amines. More particularly, disclosed are a mutant microorganism transformed with a gene encoding a valine decarboxylase and a method of preparing primary amines from amino acids using the mutant microorganism. The method has an effect of synthesizing, in an environmentally friendly manner, primary amines as precursors for pharmaceuticals and agricultural chemicals using microorganisms, as an alternative to conventional chemical synthesis methods.