Civil Engineering
1	Air - Pollution	20	Sewage disposal
2	Air quality management	21	Sewage - Purification
3	Civil engineering	22	Soil mechanics
4	Concrete construction	23	Soil pollution
5	Engineering management	24	Soil remediation
6	Engineering geology	25	Steel, Structural
7	Environmental engineering	26	Structural analysis (Engineering)
8	Environmental impact analysis	27	Structural design
9	Foundations	28	Structural_dynamics
10	Geographic information systems	29	Structural engineering
11	Global positioning system	30	Structural stability
12	Highway engineering	31	Traffic engineering
13	Hydraulic engineering	32	Transportation
14	Hydrology	33	Transportation engineering
15	Masonry	34	Water - Purification
16	Refuse and refuse disposal	35	Water quality management
17	Reinforced concrete construction	36	Water resources development
18	Remote sensing	37	Water-supply engineering
19	Research - Methodology	38	Water-supply - Management
	Electrical Engineering
1	Artificial intelligence	23	Microprocessors
2	Automatic control	24	Microwave circuits
3	Broadband communication systems	25	Microwave communication systems
4	Digital electronics	26	Microwave devices
5	Digital communications	27	Mobile communication systems
6	Digital control systems	28	Optical communications
7	Electric circuit analysis	29	Optoelectronic devices
8	Electric circuits	30	Optoelectronics
9	Electric engineering	31	Power_electronics
10	Electric power distribution	32	Process control
11	Electric power production	33	Programmable controllers
12	Electric power systems	34	Radio circuits
13	Electric wiring	35	Radio frequency
14	Electromagnetic compatibility	36	Radio wave propagation
15	Electromagnetic fields	37	Robotics
16	Electromagnetic theory	38	Research - Methodology
17	Electromagnetic waves	39	Robots, Industrial
18	Electromagnetism	40	Signal processing
19	Electronics	41	Telecommunication
20	Fiber optics	42	Telecommunication_systems
21	Fuzzy systems	43	Telematics
22	Image processing - Digital techniques	44	Wireless communication_systems
	Mechanical Engineering
1	Air conditioning	22	Industrial safety
2	Ceramics	23	Manufacturing processes
3	Combustion engineering	24	Materials
4	Composite materials	25	Mechanical engineering
5	Computer-aided design	26	Mechanics, Applied
6	Computer-aided engineering	27	Mensuration
7	Computer integrated manufacturing systems	28	Metallurgy
8	Control theory	29	Packaging
9	Corrosion and anti-corrosives	30	Polymers
10	Design, Industrial	31	Polymerization
11	Engineering design	32	Process control
12	Engineering economy	33	Production engineering
13	Engineering instruments	34	Production management
14	Engineering mathematics	35	Production planning
15	Fluid dynamics	36	Research - Methodology
16	Fluid mechanics	37	Quality control
17	Fracture mechanics	38	Solids
18	Heat - Transmission	39	System design
19	Industrial engineering	40	Thermodynamics
20	Industrial hygiene	41	Vibration
21	Industrial_management