TK Electrical engineering. Electronics Nuclear engineering 42 T Technology (General) 14 TJ Mechanical engineering and machinery 13 TP Chemical technology 11 QC Physics 6 Electric power distribution. Electric power transmission 5 Q Science (General) 5 Electric apparatus and materials. Electric circuits. Electric networks 4 Applications of electric power 3 Neural networks (Computer science) 3 Photovoltaic power systems 3 Power resources 3 QA Mathematics 3 TA Engineering (General). Civil engineering (General) 3 Electric current (General) 2 Electronic funds transfers 2 Evolutionary programming (Computer science). Genetic algorithms 2 H Social Sciences (General) 2 Heat. Heat in its applications, as a source of power, etc 2 Information technology. Information systems 2 Malaysia 2 Nuclear engineering. Atomic power 2 QD Chemistry 2 Aeronautics. Aeronautical engineering 1 Agricultural associations, societies, etc 1 Agricultural economics 1 Antennas 1 Application software 1 Applied optics. Photonics 1 Atomic physics. Constitution and properties of matter 1