Design and construction 10 517 Automobiles 4 690 Data processing 4 398 Wireless communication systems 3 753 Computer networks 3 718 Automatic control 3 513 Materials 3 428 Digital techniques 3 330 Computer graphics 3 208 Management 3 173 Programmable controllers 3 043 Testing 2 930 Mathematical models 2 783 Maintenance and repair 2 739 Design 2 702 Signal processing 2 299 Image processing 2 257 Quality control 2 171 Engineering 2 033 Manufacturing processes 2 008 Web sites 2 000 Production management 1 979 Robots 1 947 Electric power systems 1 904 Electronics 1 876 Security measures 1 870 Composite materials 1 823 Safety measures 1 749 Equipment and supplies 1 725 Robotics 1 717