Congresses 132 Pressure vessels 131 Pressure groups 71 Design and construction 51 Piping 46 Wind-pressure 42 Fluid dynamics 32 Politics and government 29 Testing 27 Fracture mechanics 24 Pipelines 24 Atmospheric pressure 23 Materials 22 Standards 21 Aerodynamics 20 Structural dynamics 20 Buildings 19 Measurement 19 Data processing 18 Metals 18 Earthquake effects 17 Nuclear power plants 17 Mathematical models 16 Nuclear pressure vessels 16 Political parties 15 Pressure 15 Cracking 14 Fatigue 14 High pressure (Science) 14 High pressure (Technology) 14