Design and construction 38 Data processing 27 Mathematical models 24 Signal processing 22 Integrated circuits 21 Management 16 Very large scale integration 15 Materials 13 Electronic circuit design 12 Linear integrated circuits 12 Mathematics 12 Wireless communication systems 12 Design 11 Digital techniques 11 Metal oxide semiconductors, Complementary 9 Research 9 Computer networks 8 Computer-aided design 8 Production management 8 Testing 8 Airplanes 7 Digital integrated circuits 7 Electronic apparatus and appliances 7 Electronic circuits 7 Electronic commerce 7 Environmental aspects 7 Equipment and supplies 7 Exercise 7 Fracture mechanics 7 Physiological aspects 7