Classification
620 - Engineering & allied operations
804
621 - Applied physics
276
629 - Other branches of engineering
94
530 - Physics
75
531 - Classical mechanics; solid mechanics
74
515 - Analysis
36
660 - Chemical engineering
28
003 - Systems
23
518 - Numerical analysis
23
624 - Civil engineering
17
519 - Probabilities & applied mathematics
12
333 - Economics of land & energy
11
536 - Heat
11
571 - Physiology & related subjects
11
610 - Medicine & health
11
670 - Manufacturing
11
550 - Earth sciences
7
551 - Geology, hydrology & meteorology
7
627 - Hydraulic engineering
6
534 - Sound & related vibrations
4
667 - Cleaning, color & coating technologies
4
006 - Special computer methods
3
363 - Other social problems & services
3
535 - Light & infrared & ultraviolet phenomena
3
628 - Sanitary & municipal engineering
3
697 - Heating, ventilating & air-conditioning
3
509 - Historical, geographic & persons treatment
2
510 - Mathematics
2
512 - Algebra
2
526 - Mathematical geography
2
600 - Technology
2
004 - Data processing & computer science
1
516 - Geometry
1
532 - Fluid mechanics; liquid mechanics
1
537 - Electricity & electronics
1
541 - Physical chemistry
1
547 - Organic chemistry
1
570 - Life sciences; biology
1
616 - Diseases
1
622 - Mining & related operations
1
690 - Buildings
1