-
433.
Geophysical exploration
Subjects
GeophysicsProspecting
-
434.
Geospatial data
Subjects
GeomaticsGeographic information systems
-
435.
Geostatistics
Subjects
Geology
-
436.
Geothermal resources
Subjects
Earth temperatureNatural resourcesRenewable energy sources
-
437.
Glass
Subjects
CeramicsWindows
-
438.
Glass-ceramics
Subjects
CeramicsGlass
-
439.
Gliders (Aeronautics)
Subjects
-
440.
Gold mines
Subjects
Mines and mineral resourcesGold
-
441.
GPRS
Subjects
Cell phone systems
-
442.
Granular materials
Subjects
Materials
-
443.
Graphene
Subjects
-
444.
Graphic statics
Subjects
-
445.
Graphics processing units
Subjects
Computer graphics
-
446.
Green electronics
Subjects
ElectronicsSustainable engineeringGreen products
-
447.
Grenades
Subjects
BombsProjectiles
-
448.
Grinding wheels (Technology)
Subjects
Abrasives
-
449.
Gunpowder
Subjects
FirearmsExplosivesFireworks
-
450.
Haptic devices
Subjects
Computer input-output equipmentUser interfaces (Computer systems)Robotics
-
451.
Harbors
Subjects
CommunicationsCivil engineeringTransportation
-
452.
Hazardous waste site remediation
Subjects
Pollution prevention
-
453.
Hazardous waste sites
Subjects
Sanitary landfills
-
454.
Headphones
Genre/Form
Equipment
-
455.
Heat engineering
Subjects
Heat
-
456.
Heat exchangers
Subjects
CoolingTransmission of heat
Last updated dated: 21/02/2026