-
913.
Shipyards
Subjects
Shipbuilding
-
914.
Shoe-polish
Subjects
-
915.
Shortwave radio
Subjects
Electric conductorsElectric waves
-
916.
Signal integrity (Electronics)
Subjects
Signal theory (Telecomunications)
-
917.
Signal processing
Subjects
-
918.
Signal theory (Telecomunications)
Subjects
-
919.
Silver mines
Subjects
Mines and mineral resources
-
920.
Sintering
Subjects
Powder metallurgy
-
921.
Smart cards
Subjects
Security systemsMicroprocessors
-
922.
Smart materials
Subjects
Materials
-
923.
Smartphones
Subjects
Cell phones
-
924.
Smithery
Subjects
-
925.
Social media
Subjects
Social interactionDigital mediaWeb 2.0
-
926.
Soil mechanics
Subjects
Earthwork
-
927.
Solar buildings
Subjects
Solar heatingBuildings
-
928.
Solar cells
Subjects
Electric batteriesPhotovoltaic cellsSolar energy
-
929.
Solar collectors
Subjects
Solar heatingSolar energy
-
930.
Solar energy
Subjects
Renewable energy sourcesSolar radiation
-
931.
Solar heating
Subjects
Solar thermal energy
-
932.
Solar power plants
Subjects
Electric power-plantsSolar energy
-
933.
Solar thermal energy
Subjects
Solar energyHeat engineering
-
934.
Sonar
Subjects
Underwater acousticsDetectorsEcholocation (Physiology)
-
935.
Sound
Subjects
Radiation
-
936.
Sound recording and reproducing
Subjects
Radio
Last updated dated: 17/11/2024