History of engineering and technology 56 TJ Mechanical engineering and machinery 44 Technology: general issues 42 TA Engineering (General). Civil engineering (General) 30 History of engineering & technology 17 Finite element method 9 Welding 7 Dynamic behaviours 5 Materials science 5 Research & information: general 5 Laser beam welding 4 Metal manufactures. Metalworking 4 TK Electrical engineering. Electronics Nuclear engineering 4 Mechanical engineering 3 Modal analysis 3 Model updating 3 Other technologies and applied sciences 3 Physics 3 Spot welding 3 Welded structures 3 simulation 3 Aluminum alloys 2 Binary alloys 2 Compression 2 Dynamic Behaviour 2 Dynamic behaviour 2 Engineering machinery, tools, and implements 2 Environmental science, engineering and technology 2 Experiment Modal Analysis 2 Experimental modal analysis 2