2,837 research outputs found

    NASA contributions to fluidic systems: A survey

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    A state-of-the art review of fluidic technology is presented. It is oriented towards systems applications rather than theory or design. It draws heavily upon work performed or sponsored by NASA in support of the space program and aeronautical research and development (R&D). Applications are emphasized in this survey because it is hoped that the examples described and the criteria presented for evaluating the suitability of fluidics to new applications will be of value to potential users of fluidic systems. This survey of the fluidics industry suggests some of the means whereby a company may use a fluidic system effectively either to manufacture a product or as part of the end product

    GCE subject criteria for applied engineering : for first teaching from September 2009

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    Electronic/electric technology benefits study

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    The benefits and payoffs of advanced electronic/electric technologies were investigated for three types of aircraft. The technologies, evaluated in each of the three airplanes, included advanced flight controls, advanced secondary power, advanced avionic complements, new cockpit displays, and advanced air traffic control techniques. For the advanced flight controls, the near term considered relaxed static stability (RSS) with mechanical backup. The far term considered an advanced fly by wire system for a longitudinally unstable airplane. In the case of the secondary power systems, trades were made in two steps: in the near term, engine bleed was eliminated; in the far term bleed air, air plus hydraulics were eliminated. Using three commercial aircraft, in the 150, 350, and 700 passenger range, the technology value and pay-offs were quantified, with emphasis on the fiscal benefits. Weight reductions deriving from fuel saving and other system improvements were identified and the weight savings were cycled for their impact on TOGW (takeoff gross weight) and upon the performance of the airframes/engines. Maintenance, reliability, and logistic support were the other criteria

    An investigation of the needs and the design of an orbiting space station with growth capabilities

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    An architectural approach to the evolutionary growth of an orbiting space station from a small manned satellite to a fully independent, self-sustainable space colony facility is presented. Social and environmental factors, ease of transportation via the space shuttle, and structural design are considered

    Pneumatic world theater

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    Thesis (M.S.V.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1987.Bibliography: leaves 61-63.by Lees Ruoff-Siler.M.S.V.S

    Developing successful learners in the technologies in primary schools

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    Design of an Ultrasonic Ribbon Bonder

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    Ultrasonic Bonding is a solid-state bonding mechanism that can join two dissimilar materials. This report details work done to design, build, and analyze an ultrasonic ribbon bonder for research use at Santa Clara University. The bonder would allow researchers to view the bond site as the bond is being formed, which would be accomplished by bonding an aluminum ribbon to a silica substrate. Unfortunately, issues corresponding to COVID-19 led to difficulty in building the bonder during the final stages of construction. This led the team to focus on analysis rather than construction of the bonder. Specifically focusing on creating a plot of tool amplitude versus transverse force for different input powers, which showed a linear relationship between amplitude and force and also showed that input power has significantly more impact on amplitude than it does on force

    Board games as a teaching tool for technology classes in Compulsory Secondary Education

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    Aquest treball estudia la tècnica coneguda com game-based learning, és a dir, l’ús dels jocs com a eina didàctica. Primer que res, es fa recerca sobre els treballs ja existents i es veu que, tot i haver-hi articles sobre game-based learning, és difícil trobar-ne de relacionats amb la tecnologia, més enllà d’ensenyar a programar. A continuació, es revisen els continguts curriculars i les competències de secundària i es relacionen amb alguns jocs de taula ja existents, dels quals es detallen breument les regles de joc. Es veu que hi ha continguts curriculars, pels quals es difícil trobar un joc que hi encaixi. A més a més, es desenvolupa la idea d’un nou joc de taula, basat en el ja existent Party & Co., per treballar alguns dels continguts curriculars pels quals no s’ha trobat cap joc existent que s’hi escaigui. Finalment, s’explica una experiència duta a terme durant el període de pràctiques en el centre escolar al curs de 3r d’ESO. Es disposava de tres grups i en tots tres es va seguir la mateixa programació: classe introductòria expositiva, una sessió de muntatge de robots LEGO, 4 sessions de programació i un petit test. En un dels tres grups, però, es va fer una classe prèvia extra on es va jugar a un joc de taula anomenat RoboRally. Els objectius eren dobles: que aprenguessin la importància de l’algorísmica i que s’ho passessin bé. Els resultats mostren que aquest grup va treballar més i millor. En el treball s’analitzen els resultats obtinguts
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