JN - Civil engineering

JM - Structural engineering

JI - Composite materials

JG - Metallurgy, metal materials

JP - Industrial processes and processing

JJ - Other materials

JC - Computer hardware and software

JB - Sensors, detecting elements, measurement and regulation

JQ - Machinery and tools

JE - Non-nuclear power engineering, energy consumption and utilization

JD - Use of computers, robotics and its application

JA - Electronics and optoelectronics

JH - Ceramics, fire-proof materials and glass

JO - Land transport systems and equipment

JR - Other machinery industry

JK - Corrosion and material surfaces

JL - Fatigue and fracture mechanics

JF - Nuclear energy

JT - Propulsion, engines and fuels

JS - Reliability and quality management, industrial testing

JY - Firearms, ammunition, explosives, combat vehicles

JU - Aeronautics, aerodynamics, aeroplanes

JV - Cosmic technologies

JW - Navigation, connection, detection and countermeasure

CF - Physical chemistry and theoretical chemistry

CD - Macromolecular chemistry

CI - Industrial chemistry and chemical engineering

CC - Organic chemistry

CE - Biochemistry

CA - Inorganic chemistry

CB - Analytical chemistry, separation

CG - Electrochemistry

CH - Nuclear and quantum chemistry, photo chemistry

DM - Solid waste and its control, recycling

DB - Geology and mineralogy

DJ - Pollution and water control

DF - Pedology

DH - Mining industry including coal mining and processing

DE - Earth magnetism, geodesy, geography

DO - Protection of landscape

DA - Hydrology and limnology

DD - Geochemistry

DI - Pollution and air control

DN - Environmental impact on health

DG - Atmospheric sciences, meteorology

DL - Nuclear waste, radioactive pollution and control

DK - Contamination and decontamination of soil including pesticides

DC - Seismology, volcanology and Earth structure

AH - Economics

AE - Management, administration and clerical work

AL - Art, architecture, cultural heritage

AO - Sociology, demography

AD - Political sciences

AM - Pedagogy and education

AF - Documentation, librarianship, work with information

AC - Archaeology, anthropology, ethnology

AG - Legal sciences

AQ - Safety and health protection, safety in operating machinery

AN - Psychology

AB - History

AA - Philosophy and religion

AJ - Literature, mass media, audio-visual activities

AP - Municipal, regional and transportation planning

AI - Linguistics

AK - Sport and leisure time activities

BA - General mathematics

BB - Applied statistics, operational research

BM - Solid-state physics and magnetism

BO - Biophysics

BC - Theory and management systems

BK - Liquid mechanics

BD - Information theory

BI - Acoustics and oscillation

BL - Plasma physics and discharge through gases

BE - Theoretical physics

BG - Nuclear, atomic and molecular physics, accelerators

BH - Optics, masers and lasers

BN - Astronomy and celestial mechanics, astrophysics

BJ - Thermodynamics

BF - Elementary particle theory and high energy physics