187 KOVAL'SKn 



Corresponding Member of the U.S.S.R. Academy of Sciences, 

 V. I. Kovalenkov (On the 70th Anniversary since the date of 

 birth). Electricity, 1954, #4. 

 Office: Laboratory in Solving Problems in Wire Communi- 



cations, USSR Academy of Sciences 

 Moscow, USSR 



KOVALEV, NIKOLAI NIKQLAEVICH (Hydroturbine Specialist) 



N. N. Kovalev was born February 22, 1908. After graduating 

 from Leningrad Technological Institute in 1933, he worked at 

 the Leningrad Metal Plant until 1959. From 1945 to 1959 he 

 was the Chief Constructor of hydroturbines at this plant. He 

 also taught at the Leningrad Polytechnic Institute. In 1959 he 

 supervised the hydroturbine section in the Central Scientific 

 Research Steam Turbine Institute. Kovalev has been a member 

 of the Communist Party of the Soviet Union since 1942. In 

 1953, he was elected a Corresponding Member of the U.S.S.R. 

 Academy of Sciences. He received, in 1946 and 1951, State 

 Prizes; in 1957, Hero of Socialist Labor award; in 1959, a 

 Lenin Prize; and three medals. 



The major works of Kovalev are devoted to designing hydro- 

 turbines. Under his leadership, swing-blade hydroturbines 

 were built for hydroelectric power plants, among them the 

 Volga and Dnieper. After World War II, he supervised the con- 

 struction of hydroturbines for Mingechaur, Tsimlyanskaya and 

 Kuibishev hydroelectric power stations. 

 Bibliography: 



and others. Exploitation of Hydroturbines. Leningrad - 

 Moscow: 1941. 



Contemporary condition and main questions of the future de- 

 velopment of hydroturbines. Boiler -Turbine Construction, 

 1950, #4. 



Hydroturbines. Moscow: 1961. 

 Office: Polzunov Technical Institute 



Konstantinogradskaya, 16 

 Leningrad S-167, USSR 



KOVAL'SKII, ALEKSANDR ALEKSEEVaCH (Physical Chemist) 



A. A. Koval'skii was born September 10, 1906. He graduated 

 in 1930 from the Leningrad Polytechnic Institute. He had been 

 working since 1929 at the Institute of Chemical Physics of the 

 U.S.S.R. Academy of Sciences and in 1947 was made professor 

 there; in 1957 he became Director of the Institute of Chemical 

 Kinetics and combustion of the Siberian branch of the U.S.S.R. 



