Sökning: "johansson 2007"

Visar resultat 16 - 20 av 127 avhandlingar innehållade orden johansson 2007.

  1. 16. On Communication and Flocking in Multi-Robot Systems

    Författare :Magnus Lindhé; Karl Henrik Johansson; Magnus Egerstedt; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; automatic control; robotics; Automatic control; Reglerteknik;

    Sammanfattning : Coordination of multi-robot systems to improve communication and achieve flocking is the topic of this thesis. Methods are proposed for mobile autonomous robots to follow trajectories in a way that improves communications with a base station. Further, a decentralized algorithm is presented that yields flocking with obstacle avoidance. LÄS MER

  3. 17. Towards a methodology for integrated design of mechatronic servo systems

    Författare :Fredrik Roos; Jan Wikander; Hans Johansson; Hendrik van Brussel; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mechatronics; Servo Systems; Design Methodology; Integrated Design; Construction engineering; Konstruktionsteknik;

    Sammanfattning : Traditional methods for mechatronics design are often based on a sequential approach, where the mechanical structure is designed first, and then fitted with off-the-shelf electric motors, drive electronics, gearheads and sensors. Finally a control system is designed and optimized for the already existing physical system. LÄS MER

  4. 18. Cross-layer optimization of wireless multi-hop networks

    Författare :Pablo Soldati; Mikael Johansson; Peter Marbach; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telecommunication; Telekommunikation;

    Sammanfattning : The interest in wireless communications has grown constantly for the past decades, leading to an enormous number of applications and services embraced by billions of users. In order to meet the increasing demand for mobile Internet access, several high data-rate radio networking technologies have been proposed to offer wide area high-speed wireless communications, eventually replacing fixed (wired) networks for many applications. LÄS MER

  5. 19. Product design preferences in the USA, South Korea and Germany

    Författare :Maria Johansson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industriell design; Industrial Design;

    Sammanfattning : Small and medium-sized enterprises (SMEs) are essential for the economy in many countries, given that the majority of companies often are SMEs. The use of modern information and communication technologies provides opportunities for SMEs to act on a global market. LÄS MER

  7. 20. Knowledge engineering in the virtual enterprise : exploring a maturity-based decision support

    Författare :Christian Johansson; Tobias Larsson; Andreas Larsson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Knowledge Engineering; Knowledge Maturity; Functional Product Development; Decision Making; Funktionella produkter;

    Sammanfattning : In product development, lead-time reduction, cost reduction, and quality improvement are issues that companies want to improve on to increase competitiveness. One recent approach to reach this - particularly in the aerospace industry where the complexity of product offers is steadily increasing - is to manage risk by forming virtual enterprises. LÄS MER