Accumulators	2
Agriculture	1
Analytical chemistry	168
Antennas and waveguides	17
Astronomy	2
Automated equipment	6
Automobiles	1
Chemistry	77
Coal	1
Communications	2
Computers	6
Construction	29
Earth sciences	27
Electric machinery	5
Electrochemistry	10
Electronics	191
Energy industry	2
Engineering	1
Environment	3
General	99
Geophysics	1
Health care	31
High energy physics	27
Industry	12
Information technology	2
Isolation	3
Life sciences	3
Measuring instruments	49
Mechanic engineering	8
Medical	29
Medical appliances	219
Metallurgy	267
Microelectronics	21
Mining	4
Natural resourses and wildlife conservation	16
Nuclear physics	7
Optics branch of physics	16
Patents	1
Physics	99
Piezoelectric crystals	1
Radiation	62
Radiobiology	13
Technology	238
Thermal Energy	34
Transport	5
Vacuum tubes	3
Welding	11