KONSTANTINOV 176 



KQNSTANTINOV, BORIS PAVLOVICH (Physicist) 



B. P. Konstantinov was born July 6, 1910. He graduated in 

 1929 from the Mechanical-Mathematical Faculty of the Lenin- 

 grad Polytechnic Institute. Beginning in 1930 he worked at the 

 Leningrad Electro-Physical Institute as well as at some other 

 scientific research institutes. As of 1961, he has been Director 

 of the Leningrad Physico-Technical Institute of the U.S.S.R. Aca- 

 demy of Sciences where he has worked since 1940. In 1947 he 

 became a professor at Leningrad Polytechnic Institute. He was 

 elected Corresponding Member of the U.S.S.R. Academy of 

 Sciences in 1953 and in 1960 Academician. 



Konstantinov' s main investigations are theoretical and ap- 

 plied acoustics and physical chemistry. In 1934 he developed a 

 quantitative theory of the sound of a propeller. He investigated 

 in 1936 the equation of non-linear acoustics. In 1935-43 he 

 studied auto-oscillary phenomena and the process of sound for- 

 mation in musical instruments and in sound signaling devices, 

 non-planar waves in wind instruments, and resonant absorption. 

 He also studied the influence of viscosity and thermal conduc- 

 tivity on the propagation and absorption of sound in an organic 

 medium. Konstantinov obtained results important for measure- 

 ment in acoustics. 

 Bibliography: 



On several applications of the continuity equation of energy 



in acoustics. Zhur. Eksptl. i Teoret. Fiz., 1936, 6, #9. 



On the auto -oscillation and sound formation of the tongue of 



an accordion. Zhur. Tekh. Fiz., 1939, 9, #20. 



On absorption of sound waves during reflection from a solid. 



Zhur. Tekh. Fiz., 1939, 9, #3. 



On the attenuation of sound in a room with hard walls and on 



the diffusion coefficient of sound absorption. Zhur. Tekh. 



Fiz., 1939, 9, #5. 



and L. V. Rotova . Role of longitudinal mixing in exchange 



columns for separation of isotopes. Doklady Akad. Nauk 



135 , #4, 896-98 (1960). 

 Office: Leningrad Physico-Technical Institute 



Sosnovka, 2 

 Lesnoy, Leningrad, USSR 



KOROLEV, SERGEI PAVLOVICH (Mechanics Specialist) 



S. P. Korolev was born December 30, 1906. In 1930 he 

 graduated from the Moscow Higher Technical School. He has 

 been a member of the Communist Party of the Soviet Union 



