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Applied Science Dept. Announces Three New Appointments to Staff

Three new appointments have been made in the Applied Science Department, Dean John H. Van Vleck announced yesterday.

Clarence L. Hogan was appointed associate professor of Applied Physics; Lloyd M. Trefethen, professor of Mechanical Engineering; and Andrew R. Lang, instructor in Metallurgy.

Hogan, formerly of the Bell Telephone Laboratories, is noted for his successful construction of the microwave gyrator, which in principle permits the simultaneous transmission and reception of a single frequency from the same antenna. Trefethen is currently doing research in the field of fluid mechanics and heat transfer in liquid metals. Since 1951 he has been Technical Aide to the Director of the National Science Foundation in Washington.

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