TK Electrical engineering. Electronics Nuclear engineering 306 TP Chemical technology 90 TJ Mechanical engineering and machinery 63 QA75 Electronic computers. Computer science 58 TA Engineering (General). Civil engineering (General) 56 QA76 Computer software 26 QC Physics 18 HD28 Management. Industrial Management 17 QA Mathematics 17 T Technology (General) 14 HE Transportation and Communications 13 TK5101-6720 Telecommunication 12 Q Science (General) 10 QD Chemistry 10 G70.212-70.215 Geographic information system 9 TD Environmental technology. Sanitary engineering 8 TK7885-7895 Computer engineer. Computer hardware 7 Unspecified 7 HD Industries. Land use. Labor 6 New Zealand 6 TH Building construction 6 TS Manufactures 6 Case study 5 NA Architecture 5 Simulation 5 China 4 GE Environmental Sciences 4 Optimisation 4 Sustainability 4 V Naval Science (General) 4