Detectors 24 Sensor networks 23 Wireless sensor networks 15 Image processing 13 Signal processing 13 Biosensors 12 Digital techniques 11 Remote sensing 11 Medical microbiology 10 Optical fiber detectors 10 Sensors 10 Chemical detectors 9 Engineering 9 Mathematics 9 Mobile computing 9 Optical detectors 9 Cloud computing 8 Management 8 Nanostructured materials 8 Nanotechnology 8 Wireless LANs 8 Wireless communication systems 8 Politics and government 7 Biotechnology 6 Computer networks 6 Novel 6 Design and construction 5 Microelectromechanical systems 5 Multisensor data fusion 5 Semiconductors 5