Thema Subject Categories 1.4

Previous versions of Thema are still available 1.3 1.2.

Browse the Thema subject categories hierarchy, or search for a specific term within the hierarchy.

See the search hints below.

Notation Category heading Add Mod ?
T Technology, Engineering, Agriculture, Industrial processes
Class here: associated skills, trades and professions. Use all T* codes for: academic, technical, specialist and general adult titles. DO NOT USE: code ‘T’ itself, but select specific categories from section T*. Use all T* codes with: other subject categories and qualifiers where appropriate, in particular EDUCATIONAL PURPOSE 4* qualifiers for vocational, professional or apprenticeship style education titles
TH Energy technology and engineering
THF Fossil fuel technologies
THK Nuclear power and engineering
THN Heat transfer processes
Class here: refrigeration, industrial air conditioning, heat pumps.
See also: TNKH Heating, lighting, ventilation
THR Electrical engineering
THV Alternative and renewable energy sources and technology
Class here: tidal and wave energy, osmotic power, marine current power.
See also: RNU Sustainability
THY Energy, power generation, distribution and storage
Class here: power networks and plants; power utilization and applications; energy conversion and storage including fuel cells and battery technology

version detail