TJ Mechanical engineering and machinery 54 TP Chemical technology 32 TA Engineering (General). Civil engineering (General) 22 TS Manufactures 9 T Technology (General) 8 Q Science (General) 7 QC Physics 6 T1-995 Technology(General) 6 QH301 Biology 5 QD Chemistry 4 R Medicine (General) 4 TK Electrical engineering. Electronics Nuclear engineering 4 3D printing 3 Materials of engineering and construction 3 R Medicine 3 Adhesion 2 Machine design and drawing 2 Mechanical and electrical engineering combined 2 Physical and theoretical chemistry 2 Preventive dentistry 2 R735-854 Medical education. Medical schools. Research 2 RA0421 Public health. Hygiene. Preventive Medicine 2 Structural engineering 2 TX341-641 Nutrition. Foods and food supply 2 Additive manufacturing 1 Adhesive bonding 1 Anodising 1 Anodizing 1 Anoxybacillus flavithermus 1 Antibiofilm coating 1