Zeitschrift 130 Engineering 53 Pe ́riodiques 51 Materials 45 Biotechnology 44 Food 44 Research 37 Electronics 31 Technology 31 Electrical engineering 27 Aliments 23 Data processing 23 Mate ́riaux 22 Civil engineering 21 Pollution 21 Materials science 20 Mechanical engineering 20 Automatic control 19 Nanotechnology 19 Aeronautics 18 Chemical engineering 18 Food industry and trade 18 Nutrition 18 Analysis 17 Design and construction 17 Management 17 Online-Ressource 17 Power resources 17 Telecommunication 17 Composite materials 16