Classification
621 - Applied physics
157
006 - Special computer methods
131
620 - Engineering & allied operations
71
530 - Physics
29
004 - Data processing & computer science
27
537 - Electricity & electronics
16
062 - Organizations in British Isles; in England
11
610 - Medicine & health
10
541 - Physical chemistry
7
543 - Analytical chemistry
5
535 - Light & infrared & ultraviolet phenomena
4
547 - Organic chemistry
4
600 - Technology
4
629 - Other branches of engineering
3
003 - Systems
2
005 - Computer programming, programs & data
2
040 - [Unassigned]
2
518 - Numerical analysis
2
538 - Magnetism
2
546 - Inorganic chemistry
2
572 - Biochemistry
2
660 - Chemical engineering
2
500 - Natural sciences & mathematics
1
509 - Historical, geographic & persons treatment
1
515 - Analysis
1
532 - Fluid mechanics; liquid mechanics
1
542 - Techniques, equipment & materials
1
571 - Physiology & related subjects
1
615 - Pharmacology & therapeutics
1
616 - Diseases
1