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  2. Pathfinder Technology Demonstrator - Wikipedia

    en.wikipedia.org/wiki/Pathfinder_Technology...

    NASA's Pathfinder Technology Demonstrator (PTD) Project is a series of tech demonstrations of technologies aboard a series of nanosatellites known as CubeSats, providing significant enhancements to the performance of these versatile spacecraft. Each of the five planned PTD missions consist of a 6-unit (6U) CubeSat with expandable solar arrays. [3]

  3. Prevention through design - Wikipedia

    en.wikipedia.org/wiki/Prevention_through_design

    Prevention through design (PtD), also called safety by design usually in Europe, is the concept of applying methods to minimize occupational hazards early in the design process, with an emphasis on optimizing employee health and safety throughout the life cycle of materials and processes. [1]

  4. List of transponder codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Transponder_Codes

    External ARTCC subset. (Block of discrete codes except that xx00 is used as a non-discrete code after all discrete codes are assigned.) [3] 3100, 3200, 3300, 3400, 3500, 3600, 3700 US: External ARTCC subsets. (Blocks of discrete codes except that xx00 is used as a non-discrete code after all discrete codes are assigned.) [3] 4000 Australia

  5. Potsdam Municipal Airport - Wikipedia

    en.wikipedia.org/wiki/Potsdam_Municipal_Airport

    Potsdam Municipal Airport covers an area of 168 acres (68 ha) at an elevation of 474 feet (144 m) above mean sea level.It has one runway designated 6/24 with an asphalt surface measuring 3,705 by 60 feet (1,129 x 18 m).

  6. Talk:Pathfinder Technology Demonstrator - Wikipedia

    en.wikipedia.org/wiki/Talk:Pathfinder_Technology...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Pages for logged out editors learn more

  7. 2,5-Diaminotoluene - Wikipedia

    en.wikipedia.org/wiki/2,5-Diaminotoluene

    2,5-Diaminotoluene is prepared through electrolytic reduction of 2,5-dinitrotoluene. [3] Other methods include the reductive cleavage of 4-amino-2,3'-dimethylazobenzene as well as the condensation of 2-amino-1-methylbenzene and toluene-4-sulphonyl chloride to produce 4-toluenesulphono-2-toluidide which is then coupled with diazotized aminobenzenesulphonic acid and reduced.

  8. List of airports by ICAO code: P - Wikipedia

    en.wikipedia.org/wiki/List_of_airports_by_ICAO...

    PAAP (PTD) – Port Alexander Seaplane Base (FAA: AHP) ... UNECE. 28 February 2012. – includes IATA codes; FAA Order JO 7350.8H - Location Identifiers.

  9. Participatory technology development - Wikipedia

    en.wikipedia.org/wiki/Participatory_technology...

    Participatory technology development (PTD) is an approach to learning and innovation that is used in international development as part of projects and programmes relating to sustainable agriculture. The approach involves collaboration between researchers and farmers in the analysis of agricultural problems and testing of alternative farming ...