Classification
670 - Manufacturing
1,277
620 - Engineering & allied operations
414
621 - Applied physics
267
658 - General management
131
629 - Other branches of engineering
118
006 - Special computer methods
107
660 - Chemical engineering
61
003 - Systems
40
531 - Classical mechanics; solid mechanics
24
667 - Cleaning, color & coating technologies
17
304 - Factors affecting social behavior
16
005 - Computer programming, programs & data
13
541 - Physical chemistry
13
624 - Civil engineering
13
333 - Economics of land & energy
11
690 - Buildings
10
330 - Economics
8
530 - Physics
8
650 - Management & auxiliary services
8
004 - Data processing & computer science
6
338 - Production
6
363 - Other social problems & services
6
519 - Probabilities & applied mathematics
6
628 - Sanitary & municipal engineering
6
677 - Textiles
5
571 - Physiology & related subjects
4
610 - Medicine & health
3
641 - Food & drink
3
664 - Food technology
3
040 - [Unassigned]
2
300 - Social sciences
2
370 - Education
2
534 - Sound & related vibrations
2
536 - Heat
2
616 - Diseases
2
627 - Hydraulic engineering
2
630 - Agriculture & related technologies
2
693 - Specific materials & purposes
2
000 - Computer science, information & general works
1
062 - Organizations in British Isles; in England
1
140 - Specific philosophical schools
1
302 - Social interaction
1
341 - Law of nations
1
515 - Analysis
1
518 - Numerical analysis
1
523 - Specific celestial bodies & phenomena
1
532 - Fluid mechanics; liquid mechanics
1
533 - Gas mechanics
1
537 - Electricity & electronics
1
543 - Analytical chemistry
1
more ...