Page 81 of NTIS Database Search Guide by National Technical Information Service

ntis subject categories numerical listing with scope descriptions the ntis database search guide 81 81-combustion engines propellants 810-general 81a-combustion ignition autoignition ignition and combustion includes flame studies combustion products studies ignition systems combustion chemistry flammability studies see also 89 and 94h 81b-electric ion propulsion all types of engines deriving power from free ions and electrons includes ion plasma and arc jet systems propulsion by means of solar wind laser propulsion for electrically propelled surface vehicles use 85 81c-fuel propellant tanks design performance and testing of fuel and propellant tanks including those for automobiles petroleum products and rocket propellants 81d-jet gas turbine engines design performance and testing of all types of jet and gas turbine engines their components engine nozzles includes ramjet scramjet and turbofan engines and hydroduct and turbomachinery as well as nonpropulsive turbines see also 97l and 51c 81g-rocket engines motors design performance and testing of rocket engines and motors and their components 81h-rocket propellants production handling stability and performance of liquid solid thixotropic and exotic propellants includes fuels oxidizers additives and binders for combustion and ignition use 81a 81i-nuclear propulsion design performance and testing of nuclear engines for surface air and space propulsion see also 85 81j-reciprocation rotating combustion engines design performance and testing of reciprocating and rotating engines of various configurations for all types of propulsion includes internal and external combustion engines engine exhaust systems engine air systems components engine structures stirling and diesel engines see also 97l and 85h replication techniques thermography lithography and related arts graphic arts illustrating visual design for photogrammetry use 48i 82c-recording devices techniques and devices for recording other than visual images includes disk magnetic thermoplastic electrostatic recording systems cd-rom and playback equipment such as record players tape recorders etc 84-space technology 840-general extraterrestial biology chemistry and medicine 84a-astronautics space missions projects and logistics orbital rendezvous space exploration spacecraft operating problems extravehicular activity 84b-extraterrestial exploration space probe exploration space landings space construction and maintenance extravehicular activity on other planets 84c-manned spacecraft design and construction of manned spacecraft space stations aerospace planes and their components 84d-spacecraft trajectories flight mechanics determination analysis processing of spacecraft trajectory data space mechanics orbital calculations flight path analysis atmosphere entry reentry dynamics 84e-space launch vehicles support equipment handling and launching including transportation storage preparation for launching countdown launching equipment checkout equipment ground support equipment and information systems spacecraft tracking systems tracking networks recovery support 84f-space safety safety measures and devices directed toward reducing the hazards of spaceflight 84g-unmanned spacecraft design and construction of unmanned spacecraft including space probes scientific satellites military satellites communication satellites reconnaissance satellites and navigational satellites for satellites applied to a specific application see the field of application 85-transportation 82-photography recording devices 820-general 82a-holography techniques materials and uses of holography and holograms acoustic holography see also 46c 82b-photographic techniques equipment photographic techniques including aerial photography color photography astronomical photography cinematography photomicrography schlieren photography cameras lenses shutters projectors photographic processes and materials microphotography photographic copying direct recording and reproduction of visual images copying reproduction and 850-general 85a-air transportation operation of systems for transport by air civil aviation airports and airport access airline operations air routing air traffic control systems multimodal systems aviation safety and aviation accidents aircraft fires aircraft fuel fires see also 43g 74e 76 85d and 91b for design of aircraft and components use 51 and 81 for runway construction and design use 50b 85c-metropolitan rail transportation urban rail transit underground and above-ground rapid transit railways including subways automated guideway transit systems tracked air cushion vehicles see also 85i and 91b 81

[close]