Sökning: "maximum principle"

Visar resultat 31 - 35 av 74 avhandlingar innehållade orden maximum principle.

  1. 31. On modelling and simulation of perfused tissue during thermal treatment : thermal analysis of blood perfusion and lesioning during ablative neurosurgery

    Författare :Joakim Wren; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Thermal treatment means therapy for which heat is the therapeutic agent. During treatment, the tissue temperature is increased to an injurious temperature (higher than 43 °C for the most widely used treatments). The aim is to reach necrotic temperature in the treatment area and non-lethal temperature outside the same. LÄS MER

  3. 32. Thermohydrodynamics of sliding contacts with textured surfaces

    Författare :Samuel Cupillard; Paul Allaire; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

    Sammanfattning : Hydrodynamic sliding contacts like those found in journal or thrust bearings are frequently encountered in various types of machinery from computers to large turbines. These contacts, involving a variation in film thickness, are used to generate pressure in the lubricant film and separate the surfaces in relative motion. LÄS MER

  4. 33. Fuel-Efficient Look-Ahead Control for Heavy-Duty Vehicles with Varying Velocity Demands

    Författare :Manne Held; Jonas Mårtensson; Oscar Flärdh; Ardalan Vahidi; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; look-ahead control; optimal control; powertrain control; advanced driver assistance systems; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : The fuel consumption of heavy-duty vehicles can be reduced by using information about the upcoming road section when controlling the vehicles. Most manufacturers of heavy-duty vehicles today offer such look-ahead controllers for highway driving, where the information consists of the road grade and the velocity only has small variations. LÄS MER

  5. 34. Modeling and identification of nonlinear and impulsive systems

    Författare :Per Mattsson; Alexander Medvedev; Roy Smith; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nonlinear system identification; modeling; impulsive systems; impulse detection;

    Sammanfattning : Mathematical modeling of dynamical systems plays a central roll in science and engineering. This thesis is concerned with the process of finding a mathematical model, and it is divided into two parts - one that concentrates on nonlinear system identification and another one where an impulsive model of testosterone regulation is constructed and analyzed. LÄS MER

  7. 35. Modelling and control of microbial fed-batch and pH-auxostat processes

    Författare :Thi Bich Hop Pham; KTH; []
    Nyckelord :;

    Sammanfattning : Glucose and energy metabolism ofSaccharomyces cerevisiaehas been studied for decades,yet the exact location of the so called "bottleneck" thatcauses overflow metabolism resulting in aerobic ethanolformation remains unknown. However, this does not completelyhamper the modelling, simulation and development of methods tocontrol the aerobic ethanol formation under processconditions. LÄS MER