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Dr. Ralph D. Semmel is the eighth director of the Johns Hopkins Applied Physics Laboratory (APL). As director, Dr. Semmel leads the nation’s largest …See more
Frequently asked questions
Q:
What does APL do?
A:
APL is a not-for-profit university affiliated research center (UARC) that solves complex research, engineering, and analytical problems that present critical challenges to our nation....
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