Sökning: "demonstration"

Visar resultat 1 - 5 av 389 avhandlingar innehållade ordet demonstration.

  1. 1. On direct hydrogen fuel cell vehicles : modelling and demonstration

    Författare :Kristina Haraldsson; Per Alvfors; Dougal J. Nelson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical engineering; direct hydrogen; Proton Exchange Membrane; PEM; fuel cell; fuel cell vehicle; fuel cell hybrid vehicles; on-board hydrogen storage; Kemiteknik; Chemical engineering; Kemiteknik;

    Sammanfattning : In this thesis, direct hydrogen Proton Exchange Membrane (PEM) fuel cell systems in vehicles are investigated through modelling, field tests and public acceptance surveys. A computer model of a 50 kW PEM fuel cell system was developed. The fuel cell system efficiency is approximately 50% between 10 and 45% of the rated power. LÄS MER

  3. 2. Towards sustainable urban transportation : Test, demonstration and development of fuel cell and hybrid-electric buses

    Författare :Anders Folkesson; Per Alvfors; Peter Treffinger; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; acceptance; analysis; auxiliary system; bus; Clean Urban Transport for Europe; concept; CUTE; demonstration; driver; drive cycle; duty cycle; energy flow; evaluation; fuel cell; heavy duty vehicle; hybrid management; hybrid vehicle; hydrogen; passenger; PEM; safety; Sankey diagram; series hybrid; sustainable; test; urban transport; vehicle simulation; acceptans; analys; hjälpaggregat; buss; Clean Urban Transport for Europe; koncept; CUTE; demonstration; körcykel; förare; energiflöde; utvärdering; bränslecell; tunga fordon; hybridsystemkontroll; hybridfordon; vätgas; passagerare; PEM; säkerhet; Sankey-diagram; seriehybrid; uthållig; hållbar; test; stadstransport; fordonssimulering; Vehicle engineering; Farkostteknik; Chemical engineering; Kemiteknik;

    Sammanfattning : Several aspects make today’s transport system non-sustainable: • Production, transport and combustion of fossil fuels lead to global and local environmental problems. • Oil dependency in the transport sector may lead to economical and political instability. LÄS MER

  4. 3. Modification of Paper into Conductive Substrate for Electronic Functions : Deposition, Characterization and Demonstration

    Författare :Elson Montibon; Magnus Lestelius; Lars Järnström; Jouko Peltonen; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ionic paper; electroconductive paper; flexible electronics; conducting polymer; ionic liquids; fiber network; Cellulose and paper engineering; Cellulosa- och pappersteknik; Chemical Engineering; Kemiteknik;

    Sammanfattning : The thesis investigates the modification of paper into an ion- and electron-conductive material, and as a renewable material for electronic device. The study stretches from investigating the interaction between the cellulosic materials and the conducting polymer to demonstrating the performance of the conductive paper by printing the electronic structure on the surface of the conductive paper. LÄS MER

  5. 4. Towards Manipulator Learning by Demonstration and Reinforcement Learning

    Författare :Alexander Skoglund; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Manipulation; learning; robot learning from demonstration; programming by demonstration; imitation in robotics.; Computer science; Datavetenskap;

    Sammanfattning : This thesis address how robotic arms, called manipulators, can learn a task demonstrated by a teacher. The concept of showing a robot a task, instead of manually programming it, is appealing since it makes it easier to instruct robots. LÄS MER

  7. 5. Programming by demonstration of robot manipulators

    Författare :Alexander Skoglund; Rainer Palm; Honghai Liu; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; programming-by-demonstration; imitation learning; hand-state; next-state-planner; fuzzy time-modeling approach; Computer science; Datavetenskap; Computer and Systems Science; Data- och systemvetenskap; Människa-dator interaktion; Human-Computer Interaction;

    Sammanfattning : If a non-expert wants to program a robot manipulator he needs a natural interface that does not require rigorous robot programming skills. Programming-by-demonstration (PbD) is an approach which enables the user to program a robot by simply showing the robot how to perform a desired task. LÄS MER