ENGINEERING

Includes engineering (general); communications and radar; electronics and electrical engineering; fluid mechanics and heat transfer; instrumentation and photography; lasers and masers; mechanical engineering; quality assurance and reliability; structural mechanics.

31 Engineering (General)

Related Topics: See 32 through 39.

32 Communications and Radar

+ 32-01 Communication Satellites

Domestic and foreign communications satellites.

+ 32-02 Communication Equipment

Communication equipment including radio, microwave, infrared, light, laser, television, and fiber optic equipment.

+ 32-03 Communication Systems

Types of communication systems including television, digital, fiber optic, etc., and specific systems; Defense Communication Systems; Deep Space Network; Local Area Networks, etc.

+ 32-04 Telemetry

Data transmission and measuring; biotelemetry; telephotometry; telepsychometry.

+ 32-05 Radio Noise

Noise spectra; intensity, reduction, and measurement of radio noise sources; amplitude distribution analysis.

+ 32-06 Communication Theory

Information theory; coding automata theory; signal processing; decision theory; probability theory. Related Topics: 33-01 Radar Equipment -- Types of radar and implementation; equipment specification; systems engineering. 33-03 Antennas -- Types of radar and radio antennas; properties, design, and applications.

33 Electronics and Electrical Engineering

+ 33-01 Radar Equipment

Types of radar and implementation; equipment specifications; systems engineering.

+ 33-02 Semiconductors and Transistors

Types of semiconductors and transistors; devices, materials, and applications. Related Topic: 76-01 Solid State Devices -- Devices using solid state components, diodes, and rectifiers.

+ 33-03 Antennas

Types of radar and radio antennas; properties, design, and applications.

+ 33-04 Electronic Components

Types of electronic components; design, properties, packaging, and manufacturing; component reliability; equipment tests.

+ 33-05 Circuitry

Circuit theory; production techniques; reliability; protection; applications. Related Topic: 33-10 Microelectronics -- Microcircuits; microelectronic devices and components; microminiaturized electronic devices; microinstrumentation.

+ 33-06 Electrical Equipment

Types of electrical equipment; design, properties, and uses; tests and reliability.

+ 33-07 Amplifiers

Types of electronic amplifiers; design, properties, and applications. Related Topic: 34-03 Fluidics -- Fluid amplification; fluid logic circuits; fluid devices; fluid mechanics.

+ 33-08 Feedback and Control Theory

Systems, techniques, and designs.

+ 33-09 Electromagnetic Radiation

Electromagnetic wave propagation; radiation effects; properties, detection, and applications.

+ 33-10 Microelectronics

Microcircuits; microelectronic devices and components; microminiaturized electronic devices; microinstrumentation.

+ 33-11 Microwave and Submillimeter Wave Technology

Microwave research; properties; measuring techniques; applications.

+ 33-12 Magnetism

Theory and research; aeromagnetism; electromagnetism; ferromagnetism; hydromagnetism; paramagnetism; thermomagnetism. Related Topics: 05-02 Auxiliary Electrical Systems -- Electrical and solar auxiliary power sources; performance tests and systems analysis; reliability engineering. 32-02 Communication Equipment -- Communication equipment including radio, microwave, infrared, light, laser, television, and fiber optic equipment.

34 Fluid Mechanics and Thermodynamics

+ 34-01 Boundary Layer Technology

Flow characteristics and mechanics; boundary layer control; combustion control; separation; transition and turbulence; mathematical models; wind tunnel tests.

+ 34-03 Fluidics

Fluid amplification; fluid logic circuits; fluid devices; fluid mechanics.

+ 34-04 Fluid Flow

Types of liquid flow excluding gas and air flow; properties; measuring instruments; fluid mechanics.

+ 34-05 Combustion Physics

Combustion phenomena; kinetics; instability; detonation; theory.

+ 34-06 Heat Transfer, Basic

Types of heat transfer, heat dissipation, and heat resistance; measuring devices; thermodynamic properties.

+ 34-07 Reentry Heat Transfer

Heat transfer problems on reentry and their solutions; hyperbolic reentry; hypersonic reentry.

34-08 Thermal Protection

Materials used in thermal insulation; thermal control coatings; temperature control; materials tests.

+ 34-09 Ablation

Ablation studies; ablating materials; application to reentry vehicles; rocket nozzles; ablative nose cones.

+ 34-10 Cryogenics

Low temperature research; cryogenic fluids and equipment; cryochemistry. Related Topics: 28-01 Liquid Propellants -- Types of liquid propellants; storability, handling, and manufacture; properties and uses. 02-01 Aerodynamic Characteristics -- Lift, drag, stability control, and balance; dynamic properties. 35-08 Gas Flow Measurement -- Devices, applications, and systems for measuring gas flows including optical measuring instruments; laser measurement techniques.

35 Instrumentation and Photography

+ 35-01 Photography

Methods of photography; cameras and photographic equipment; applications and uses.

+ 35-02 Infrared Technology

Radiation measuring devices; infrared instruments; applications and methodologies.

+ 35-03 Instrument Standards and Calibration Techniques

Calibration standards for measuring instruments; techniques; test equipment.

+ 35-04 Temperature Measurement

Heat and temperature measuring devices; applications; systems.

+ 35-05 Pressure Measurement

Pressure measuring devices; applications; systems.

+ 35-06 Display Systems

Cathode ray tubes and display devices; display techniques and principles; helmet mounted displays; head-up displays.

+ 35-07 Data Recording

Data recorders and recording systems and techniques; laser-holographic data recording systems.

+ 35-08 Gas Flow Measurement

Devices, applications, and systems for measuring gas flow including optical measuring instruments; laser measurement techniques. Related Topics: 17-02 Navigation Systems -- Spacecraft and aircraft navigation systems including star trackers, inertial systems, doppler and stellar navigation; navigation instruments. 32-04 Telemetry -- Data transmission and measuring; biotelemetry; telephotometry; telepsychometry. 47-05 Meteorological Instruments -- Types of meteorological instruments; uses and specifications; measuring and recording instruments; meteorological parameters. 54-05 Bioinstrumentation -- Instrumentation for measuring and recording biological parameters; biomedical data; medical electronics; bioengineering. See also 19 Spacecraft Instrumentation.

36 Lasers and Masers

+ 36-01 Lasers and Masers

References to lasers and masers in general; laser theory; types of lasers and masers.

+ 36-02 Laser Applications

Design, types, and uses; materials; optical properties.

37 Mechanical Engineering

+ 37-01 Bearings and Gears

Types of bearings and gears; uses and applications; materials; product development; mechanical properties.

+ 37-02 Lubrication and Lubricants

Lubrication materials; systems; applications; high temperature; solid lubricants; squeeze films.

+ 37-03 Machining

Machining techniques and processes; machine tools; automation and production engineering.

+ 37-04 Friction and Wear

Types, measurement, and effects of friction and wear; frictionless environment; mechanical and surface properties.

+ 37-05 Seals

Sealants; gaskets; packing; leakage; self-sealing materials; sealing techniques including O-ring and labyrinth seals.

+ 37-06 Welding

Types of brazing, bonding, and soldering; techniques and processes; weld properties.

+ 37-07 Metal Forming

Forming techniques and processes; metal working; malleability. Related Topic: 37-03 Machining -- Machining techniques and processes; machine tools; automation and production engineering.

+ 37-08 Pumps

Types of pumps; design and uses; performance tests; equipment specifications.

+ 37-09 Vacuum Technology

Vacuum systems, techniques, and processes; vacuum testing, measurement, and material fabrication; application to space commercialization.

+ 37-10 Nondestructive Testing

Types and techniques; materials tests; automatic test equipment.

+ 37-11 Turbomachinery

Types of turbomachinery; design and uses; equipment specifications; performance tests; aerodynamic characteristics.

38 Quality Assurance and Reliability

+ 38-01 Quality Control and Reliability

Product development; qualitative testing; analysis of materials and structures; reliability criteria for components and structures.

39 Structural Mechanics

+ 39-01 Shells

Shell structures; stresses; loads; buckling and vibration.

+ 39-02 Stresses and Loads

Stresses and loads on launch vehicles, spacecraft, and aerospace structures.

+ 39-03 Structure Vibration and Damping

Vibration and damping in aerospace structures, spacecraft, and airframes; panel flutter.

+ 39-04 Impact Phenomena

Studies of impact phenomena in aerospace structures and components; micrometeoroid impact damage .

+ 39-05 Structural Fatigue

Fatigue studies and analysis; techniques for aerospace structures and components.

+ 39-06 Sandwich Construction

Honeycomb, multilayer, and laminated fabrication; techniques and structures.

+ 39-07 Stress Analysis

Stress calculation; analysis of structures.

+ 39-08 Structural Tests and Reliability

Destructive and nondestructive testing and reliability of aerospace structures, spacecraft, airframes, and large space structures.

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