Sökning: "commercial problems"

Visar resultat 21 - 25 av 227 avhandlingar innehållade orden commercial problems.

  1. 21. Toward cooperative advice-giving systems : the expert systems experience

    Författare :Göran Forslund; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Expert systems have during the last fifteen years successfully been applied to a number of difficult problems in a variety of different application domains. Still, the impact on the commercial market has been less than expected, and the predicted boom just failed to occur. LÄS MER

  3. 22. Topology optimization of antennas and waveguide transitions

    Författare :Emadeldeen Hassan; Martin Berggren; Daniel Noreland; Eddie Wadbro; Mats Gustafsson; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Maxwell s equations; topology optimization; antennas; waveguide transition; finite-difference time-domain; gradient-based optimization; adjoint-field problem; microwave devices.; business data processing; administrativ databehandling;

    Sammanfattning : This thesis introduces a topology optimization approach to design, from scratch, efficient microwave devices, such as antennas and waveguide transitions. The design of these devices is formulated as a general optimization problem that aims to build the whole layout of the device in order to extremize a chosen objective function. LÄS MER

  4. 23. Integer Quadratic Programming for Control and Communication

    Författare :Daniel Axehill; Anders Hansson; Manfred Morari; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Integer Quadratic Programming; Model Predictive Control; Hybrid Systems; Semidefinite Programming; Code Division Multiple Access; Multiuser Detection; Automatic Control; Communication; Automatic control; Reglerteknik;

    Sammanfattning : The main topic of this thesis is integer quadratic programming with applications to problems arising in the areas of automatic control and communication. One of the most widespread modern control methods is Model Predictive Control (MPC). In each sampling time, MPC requires the solution of a Quadratic Programming (QP) problem. LÄS MER

  5. 24. Kommersiell mediekultur : En etnografisk studie av TV-producenter och TV-produktion

    Författare :Katarina Graffman; Helena Wulff; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Cultural anthropology; Sweden; anthropology; anthropology and media; television; audience; public education; Kulturantropologi; Cultural anthropology; Kulturantropologi; Kulturantropologi; Cultural Anthropology;

    Sammanfattning : This dissertation examines a commercial media culture as articulated by a television production company in Stockholm, Sweden, and is based on nine months of extended fieldwork. The dissertation discusses the production process, its problems and constraints, and the role of the producer using a theoretical framework elaborated by Pierre Bourdieu. LÄS MER

  7. 25. Making Public Service Television : A study of institutional work in collaborative TV productions

    Författare :Maria Norbäck; Robert Picard; Leif Melin; Anna Larsson; Jönköping University; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Sammanfattning : This dissertation is about the institution of public service television as it is enacted in Sweden at the beginning of the 21st century. Public service broadcasting – first radio, then television – was introduced as a solution to the problems that arose at the beginning of the 20th century, namely how to control and organise the new broadcasting technology. LÄS MER