Subject Category List

010 Aeronautics, general

• 01A : Aerodynamics
• 01B : Aircraft operations, aircraft safety, aircraft accidents, air traffic control
• 01C : Aircraft, aircraft components
• 01D : Aircraft flight control, aircraft instrumentation
• 01E : Airport operations
• 01F : Parachutes, decelerators

020 Agriculture, plant and veterinary sciences, general

• 02A : Agricultural chemistry, fertilisers, animal feed, silage, pesticides, soil conditioners
• 02B : Agricultural economics, agricultural markets
• 02C : Agricultural engineering
• 02D : Agronomy, crop production, crop diseases, horticulture
• 02E : Animal husbandry, farm animals, pets
• 02F : Forestry, agroforestry, sustainable forestry
• 02G : Veterinary sciences, veterinary medicine
• 02H : Aquaculture, fisheries, fishing

030 Environmental pollution, protection and control, general

• 03A : Air pollution, emissions, acid rain
• 03B : Noise pollution
• 03C : Water pollution, oil pollution, sewage treatment, water treatment
• 03D : Land pollution, soil pollution
• 03E : Radioactive pollution, nuclear waste
• 03F : Solid waste pollution, waste disposal, landfills
• 03G : Environmental health, environmental safety
• 03H : Environmental law, environmental regulations
• 03I : Waste recycling (non-nuclear), waste recovery
• 03J : Nuclear waste reprocessing

050 Humanities, psychology and social sciences, general

• 05A : Management, administration, business studies
• 05B : Information science, librarianship
• 05C : Ergonomics
• 05D : Economics, economic theory
• 05E : History
• 05F : Archaeology
• 05G : Anthropology, folklore, ethnology
• 05H : Philosophy, theology, religion
• 05I : Law, law enforcement, penal administration
• 05J : Political science, public administration
• 05K : Linguistics
• 05L : Literature, mass media, performing arts
• 05M : Sport, Recreation, tourism
• 05N : Arts, crafts
• 05O : Architecture
• 05P : Education, training
• 05Q : Psychology
• 05R : Sociology, social studies, welfare studies, social services
• 05S : Labour studies
• 05T : Health services, health administration, community care services
• 05U : Housing provision, property
• 05V : Urban planning, rural planning, transport planning, countryside conservation
• 05W : Demography, population studies
• 05X : Internal and EU commerce, domestic marketing, consumer affairs
• 05Y : International commerce, international marketing, international trade
• 05Z : Banking, finance, taxation

060 Biological and medical sciences, general

• 06A : Biochemistry
• 06B : Bioengineering, biomedical engineering, biotechnology, biochemical engineering
• 06C : Human anatomy, human histology
• 06D : Bionics
• 06E : Medicine
• 06F : Ecology
• 06G : Escape, rescue, survival
• 06H : Food technology, food microbiology
• 06I : Hygiene, sanitation
• 06J : Industrial medicine, occupational health
• 06K : Life-support systems
• 06L : Medical equipment, hospital equipment, medical diagnostic equipment
• 06M : Microbiology
• 06N : Personnel selection, employee fitness
• 06O : Pharmacology, pharmacy, pharmaceutical chemistry
• 06P : Physiology
• 06Q : Protective equipment, protective clothing
• 06R : Radiobiology, radiation biology
• 06S : Stress physiology, human, aerospace medicine
• 06T : Toxicology, poisons
• 06U : Wounds, Injuries, trauma medicine
• 06V : Genetics, cytology, molecular biology
• 06W : Botany
• 06X : Zoology
• 06Y : Biophysics
• 06Z : Alternative medicine

070 Chemistry, general

• 07A : Chemical engineering, industrial chemistry
• 07B : Inorganic chemistry
• 07C : Organic chemistry
• 07D : Physical chemistry
• 07E : Nuclear chemistry, radiochemistry
• 07F : Analytical chemistry

080 Earth and atmospheric sciences, general

• 08A : Oceanography
• 08B : Hydrology, limnology
• 08C : Glaciology, snow, ice, permafrost
• 08D : Geography
• 08E : Geology, mineralogy, sedimentology
• 08F : Seismology, earthquakes
• 08G : Volcanology, plate tectonics
• 08H : Earth, interior structure
• 08I : Geochemistry
• 08J : Geomagnetism, geodesy, cartography
• 08K : Soil Science, pedology
• 08L : Mining
• 08M : Atmospheric sciences
• 08N : Meteorology, climatology
• 08O : Environment
• 08P : Waste management
• 08Q : Biosphere

090 Electronics and electrical engineering, computer science, general

• 09A : Components
• 09B : Circuits
• 09C : Electronic devices, electromechanical devices
• 09D : Optoelectronics
• 09E : Power transmission, signal transmission
• 09F : Electrometry, electronic test equipment
• 09G : Computer hardware
• 09H : Computer software, programming
• 09I : Control systems, control theory
• 09J : Information theory, coding theory, signal processing
• 09K : Pattern recognition, image processing
• 09L : Computer-Aided Design (CAD)
• 09M : Computer Aided Manufacturing (CAM)
• 09N : Robotics
• 09O : Applications of computer science, business data processing
• 09P : Artificial Intelligence

100 Energy and power, general

• 10A : Coal
• 10B : Oil
• 10C : Natural gas
• 10D : Oil shales, coal shales, tar sands
• 10E : Fission fuels
• 10F : Fusion fuels
• 10G : Isotope technology, radiation source technology
• 10H : Hydrogen
• 10I : Other synthetic and natural fuels
• 10J : Hydro energy
• 10K : Solar energy
• 10L : Geothermal energy
• 10M : Wave power, tidal power
• 10N : Wind power
• 10O : Nuclear power plants
• 10P : Nuclear reactor technology
• 10Q : Energy storage
• 10R : Direct energy conversion, Fuel cells
• 10S : Energy conservation, Energy consumption
• 10T : Special purpose power plants
• 10U : Biomass energy
• 10V : Thermodynamic cycles
• 10W : Conventional power plants

110 Materials, general

• 11A : Adhesives, sealants
• 11B : Ceramics, refractories, glasses
• 11C : Coatings, paints, finishes
• 11D : Composites
• 11E : Fibres, textiles
• 11F : Metallurgy, metallography
• 11G : Miscellaneous materials
• 11H : Oils, Lubricants, hydraulic fluids
• 11I : Plastics
• 11J : Elastomers
• 11K : Solvents, cleaners, abrasives
• 11L : Wood, paper
• 11M : Material degradation, corrosion, fracture mechanics

120 Mathematical sciences, general

• 12A : Pure mathematics
• 12B : Statistics, operations research
• 12C : Applied mathematics

130 Mechanical, industrial, civil and marine engineering, general

• 13A : Air conditioning, heating, lighting, ventilation, refrigeration
• 13B : Civil engineering
• 13C : Construction equipment, building materials
• 13D : Containers, Packaging
• 13E : Couplings, fittings, fasteners, joints
• 13F : Ground transport systems
• 13G : Hydraulic systems, pneumatic systems
• 13H : Industrial processes, manufacturing processes
• 13I : Machinery, tools
• 13J : Marine engineering, offshore engineering
• 13K : Pumps, filters, pipes, tubing, valves, pressure vessels
• 13L : Safety engineering
• 13M : Structural engineering
• 13N : Building technology

140 Methods and equipment, general

• 14A : Cost effectiveness, cost-benefit analysis
• 14B : Laboratories, test facilities, test equipment
• 14C : Recording equipment
• 14D : Equipment reliability, quality control
• 14E : Reprographics, photographic processes

150 Military sciences, general

• 15A : Antisubmarine warfare
• 15B : Chemical warfare, biological warfare
• 15C : Defence
• 15D : Military intelligence
• 15E : Military logistics
• 15F : Nuclear warfare
• 15G : Military operations, military strategy, military tactics

160 Missile technology, general

• 16A : Missile launching, missile ground support
• 16B : Missile trajectories
• 16C : Missile warheads, missile fuses
• 16D : Missiles

170 Navigation, communications, detection and countermeasures, general

• 17A : Acoustic detection, sonar
• 17B : Communication systems, telecommunications
• 17C : Direction finding
• 17D : Electronic countermeasures, acoustic countermeasures
• 17E : Infrared detection, ultraviolet detection
• 17F : Magnetic detection
• 17G : Navigation
• 17H : Optical detection
• 17I : Radar detection
• 17J : Seismic detection

190 Ordnance, general

• 19A : Pyrotechnics, explosives, ammunition
• 19B : Bombs
• 19C : Combat vehicles
• 19D : Explosions, ballistics, armour
• 19E : Fire control, bombing systems
• 19F : Guns
• 19G : Rockets
• 19H : Underwater ordnance

200 Physics, general

• 20A : Theoretical physics
• 20B : Elementary particles, high energy physics
• 20C : Nuclear physics, particle accelerators
• 20D : Atomic physics, molecular physics
• 20E : Optics, masers, lasers
• 20F : Acoustics, vibrations, noise analysis
• 20G : Thermodynamics
• 20H : Metrology
• 20I : Fluid mechanics
• 20J : Plasma physics, gas discharges
• 20K : Solid-state physics
• 20L : Biophysics
• 20M : Astrophysics
• 20N : Astronomy, celestial mechanics
• 20O : Astrophysics
• 20P : Cosmic rays
• 20Q : Astrogeology, planetary research

210 Propulsion and fuels, general

• 21A : Air-breathing engines
• 21B : Combustion, ignition
• 21C : Electric propulsion
• 21D : Fuels
• 21E : Jet turbine engines, gas turbine engines
• 21F : Nuclear propulsion
• 21G : Reciprocating engines
• 21H : Rocket motors
• 21I : Rocket propellants

220 Space technology, general

• 22A : Astronautics
• 22B : Manned spacecraft
• 22C : Spacecraft trajectories, spacecraft re-entry
• 22D : Spacecraft launching, ground support
• 22E : Unmanned spacecraft, satellites
• 22F : Extraterrestrial exploration