Sökning: "obstacle"

Visar resultat 1 - 5 av 430 avhandlingar innehållade ordet obstacle.

  1. 1. The Double Obstacle Problem on Metric Spaces

    Författare :Zohra Farnana; Jan Björn; Anders Björn; Juha Kinnunen; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; metric space; nonlinear; obstacle problem; p-harmonic; potential theory; regularity; stability; MATHEMATICS; MATEMATIK;

    Sammanfattning : During the last decade, potential theory and p-harmonic functions have been developed in the setting of doubling metric measure spaces supporting a p-Poincar´e inequality. This theory unifies, and has applications in several areas of analysis, such as weighted Sobolev spaces, calculus on Riemannian manifolds and Carnot groups, subelliptic differential operators and potential theory on graphs. LÄS MER

  3. 2. Formations and Obstacle Avoidance in Mobile Robot Control

    Författare :Petter Ögren; KTH; []
    Nyckelord :Mobile Robots; Robot Control; Obstacle Avoidance; Multi-robot system; Formation Control; Navigation Function; Lyapunov Function; Model Predictive Control; Receding Horizon Control; Gradient Climbing; Gradient Estimation.;

    Sammanfattning : This thesis consists of four independent papers concerningthe control of mobile robots in the context of obstacleavoidance and formation keeping. The first paper describes a new theoreticallyv erifiableapproach to obstacle avoidance. LÄS MER

  4. 3. Obstacle Problems for Green Potentials and for Parabolic Quasiminima

    Författare :Catarina Petersson; Matematik (naturvetenskapliga fakulteten); []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Functions; differential equations; Funktioner; differentialekvationer; Matematik; degenerate parabolic operators; Mathematics; quasiminima; obstacle problems; Green potentials;

    Sammanfattning : The thesis consists of two parts. In the first part pure potential theoretic methods are employed to study the obstacle problem connected with a uniformly elliptic second-order differential operator in divergence form. Regular points of the obstacles are characterized by the classical Wiener criterion. LÄS MER

  5. 4. Experimental and Numerical Investigations of Heat Transfer related to Gas Turbine Applications

    Författare :Safeer Hussain; Värmeöverföring; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; heat transfer; obstacle; vortex generator; pin fins; endwall; Nusselt number; thermal performance; film cooling effectiveness; contouring;

    Sammanfattning : Gas turbines are broadly used in aerospace and marine propulsion and power production etc.Investigation of heat transfer in gas turbines is a long-lasting and still an active subject ofresearch due to its tremendous importance. LÄS MER

  7. 5. Le désir selon l'Autre. Étude du Rouge et le Noir et de la Chartreuse de Parme à la lumière du « désir triangulaire » de René Girard

    Författare :Annika Mörte Alling; Franska; []
    Nyckelord :HUMANIORA; HUMANITIES; desire; and the novel. Self and Other in Literary Structure ; mimetic desire; triangular desire; passion; love; the Other; mediation; external mediation; internal mediation; model; mediator; obstacle; vanity; rivalry; jealousy; violence; Napoleon; Rousseau; Marguerite de Navarre; books; reading; revelation; conversion; conception of reality; degree of lucidity; metaphysical deception; romantic; Jules de Gaultier; bovarysme; romanesque; crystallization.; French language; Franska språket; French literature; General and comparative literature; Fransk litteratur; Mensonge romantique et vérité romanesque Deceit; René Girard; La Chartreuse de Parme; beylisme; Le Rouge et le Noir; Stendhal; Henri Beyle; literature criticism; literary theory; Allmän och jämförande litteratur; litteraturkritik; litteraturteori;

    Sammanfattning : The aim of this study is to examine the two novels Le Rouge et le Noir and La Chartreuse de Parme in the light of the theory of 'triangular desire', elaborated by René Girard in Mensonge romantique et vérité romanesque (1961). According to this theory, desire in Stendhal's novels – that is desire in a very general sense – is not spontaneous, but derived from a third part, that Girard labels the 'mediator' or the 'Other'. LÄS MER