895 (Continued) 
Description: 
This institute has furnished technological assistance to various 
factories in designing diamond grinding wheels and diamond dies for particular 
applications. It has, for example, developed a diamond grinding disc with an 
organic binder. It also succeeded in experimentally demonstrating the grind- 
ing of hard-alloy steel-plant rolls with a mirror finish to a tolerance of 
0.005 mm (0.0002 inch). 
896 
Name: Scientific-Research Institute of Direct Current 
(Nauchno-issledovatel'skiy institut postoyannogo toka--NIIPT) 
Address: Leningrad, Yashumovskiy pereulok, 1/39 
Director: -- 
Deputy Director: -- 
Administrative Affiliation: Ministry of Electric Power Stations, U.S.S.R. 
(1958) 
Selected Staff Members: 
A. M. Furman 
V. P. Pimenov 
L. A. Sena, Doctor 
N. N. Shchedrin, Corresponding Academician (Uzbek S.S.R.) 
M. G. Shekhtman 
N. A. Shipulina 
N. N. Tikhodeyev 
Description: 
This educational research institute was established during the 
post-war years to study long-distance electrical transmission systems. Much 
research has been done on current rectification, and high-voltage mercury 
rectifiers have been studied. The Institute also has worked on the improve- 
ment of transformer-station circuits. Some other fields of research are 
synchronous condensers, electrical insulation, transistors, meteoric 
electrical discharges, and direct-current electrical equipment. An Izvestiya 
is published. 
The Institute has a branch in Moscow at Bolotnaya naberezhaya, 15. 
897 
Name: Scientific-Research Institute of Electrical Engineering Industry 
(Nauchno-issledovatel 'skiy institut elektrotekhnicheskoy 
promyshlennosti--NIIEP ) 
