KOCHESHKOV 168 



Member of the U.S.S.R. Academy of Sciences since 1953. In 

 1941 he was awarded a Stalin Prize. 



In 1926-31 Kobzarev developed frequency stabilization by 

 means of quartz crystals in tube generators. He worked on the 

 theory of oscillation of oscillator plates. Kobzarev studied the 

 phenomena in non-linear systems and indicated the high ef- 

 ficiency of "quasi -linear^' method of treating these phenomena 

 based on the concept of complex amplitudes and resistance. He 

 played an active role in the development of radar. 

 Bibliography: 



Parameters of piezoelectric crystal resonators. Zhur. 



Priklad. Fiz. 1929, 6, #2. 



Peculiarities of crystal resonators. Zhur. Priklad. Fiz., 6; 



#6. 



Representation of a tube characteristic by a power series. 



Zhur. Tekh. Fiz., 1933, 3, #6. 



and A. Ageev . Transient processes in resonance amplifiers. 



Zhur. Tekh. Fiz., 1935, ^, #8. 



The theory of a tube generator with two degrees of freedom. 



Radiotechnics, 1950, #2. 

 Office: Institute of Radio Engineering and Electronics of 



USSR Academy of Sciences 

 Mokhovaya Ulitsa 11, K-9 

 Moscow, USSR 



KOCHESHKOV, KSENQFONT ALEKSANDRQVICH (Chemist) 



K. A. Kocheshkov was born December 12, 1894. He graduat- 

 ed from Moscow University in 1922 and in 1935 became a pro- 

 fessor there. In 1946 he was elected a Corresponding Member 

 of the U.S.S.R. Academy of Sciences. He was awarded a Stalin 

 Prize in 1948. 



The investigations of Kocheshkov deal with the chemistry of 

 metallo -organic compounds. He discovered new methods of 

 synthesis of compounds of lead, tin, silicon, alkali metals, zinc, 

 thallium, antimony, bismuth. He also developed syntheses for 

 amines and mercaptans using metallo -organic compounds. 

 Kocheshkov is one of the editors for "Synthetic Method in the 

 Area of Metallo -Organic Compounds." 

 Bibliography: 



and N. I. Sheverdina . Interaction of a -benzyl -hydroxy lamine 

 with magnesium- and lithium organic compounds as a method 

 of synthesis of primary amines. Izvest. Akad. Nauk S.S.S.R., 

 Otdel. Khim. Nauk, 1941, #1. 



