"1919-08-02Z"^^ . . "Dr. Ping King Tien (Chinese: \u7530\u70B3\u8015) (born August 2, 1919), is an electrical engineer and scientist, noted for his contributions to microwave amplifiers and integrated optical circuits."@en . "1919Z"^^ . . . "Electrical engineer" . "Tien, Ping King"@en . .