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Yamaguchi ( T.Sutoma): A Japanese citizen present in Hiroshima on 6th August, but who was able to escape and make his way home to Nagasaki, arriving on 9th August 1945.
Yellow Belt: A not entirely serious term for someone with a reasonable knowledge of Six Sigma, but who has not undergone the lengthier training associated with Green Belt or Black Belt status.
Yield: The percentage of satisfactory output obtained in the manufacture of a batch of material in process industry manufacture (food, chemicals etc.). Thus if a batch of 1000lbs is processed and there is a 90% yield, 900lbs of good quality output is obtained. In engineering terminology, this might be expressed as 10% scrap (see scrap factor), although it is noted that scrap is associated with the maloperation of a process, whereas yield may be a consequence of the technological nature of the process (eg in cooking or in the carrying out of a chemical reaction).
Yokoten: (Japanese) Information sharing across a plant; the sharing of common issues and responses.
YoYo Economics: = You're On Your Own economics.
