Classification
620 - Engineering & allied operations
15
621 - Applied physics
9
537 - Electricity & electronics
8
530 - Physics
7
616 - Diseases
5
541 - Physical chemistry
4
572 - Biochemistry
4
571 - Physiology & related subjects
3
547 - Organic chemistry
2
580 - Plants (Botany)
2
670 - Manufacturing
2
004 - Data processing & computer science
1
006 - Special computer methods
1
531 - Classical mechanics; solid mechanics
1
534 - Sound & related vibrations
1
536 - Heat
1
539 - Modern physics
1
546 - Inorganic chemistry
1
610 - Medicine & health
1
631 - Techniques, equipment & materials
1