Zeitschrift 130 Engineering 70 Pe ́riodiques 53 Biotechnology 49 Materials 47 Food 46 Research 41 Technology 35 Electronics 33 Electrical engineering 30 Civil engineering 27 Mechanical engineering 24 Aliments 23 Data processing 23 Mate ́riaux 22 Pollution 22 Analysis 20 Chemical engineering 20 Industrial engineering 20 Materials science 20 Telecommunication 20 Automatic control 19 Food industry and trade 19 Nanotechnology 19 Nutrition 19 Power resources 19 Aeronautics 18 Management 18 Mechanics, Applied 18 Design and construction 17