Sökning: "Structural equations"

Visar resultat 1 - 5 av 44 uppsatser innehållade orden Structural equations.

  1. 1. Driven by Zero Emissions or Paramount Prestige? - Investigating the Coexistence of Environmental Concern and Materialism in Predicting Purchase Intentions of Premium Electric Cars

    Master-uppsats, Göteborgs universitet/Graduate School

    Författare :Gustav Olofsson; Pontus Winblad; [2023-07-03]
    Nyckelord :Premium Electric Cars; Consumer Intentions; Theory of Planned Behavior; Environmental concern; Materialism; Sustainability Luxury Paradox; SEM Analysis;

    Sammanfattning : As the world embraces sustainability, markets align with the shift and undergo transformations. One of which is the luxury segment, from which the integration of sustainability challenges the theorized paradoxical relationship of the two concepts. LÄS MER

  3. 2. Evaluation of Physics Informed Neural Networks in engineering simple structural analysis problems

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Georgios Nentidis; [2023]
    Nyckelord :;

    Sammanfattning : Neural Networks have found many applications for a long time in Machine Learning in different disciplines, and have especially flourished in the last decade because of the ever-increasing processing power especially from GPUs. Because of their ability to operate as universal function approximators and model nonlinear processes, attempts have been made in recent years to be also used for modeling partial differential equation (PDE) solutions. LÄS MER

  4. 3. Implementation and study of boundary integral operators related to PDE:s in the plane

    Master-uppsats, Lunds universitet/Matematik LTH

    Författare :Erik Andersson; [2023]
    Nyckelord :Boundary integral equation; Singular integral operator; Product integration; Close evaluation; Numerical integration; MATLAB; Mathematics and Statistics;

    Sammanfattning : The method of solving boundary value problems of partial differential equations numerically by first reformulating the problem as a boundary integral equation has many advantages over other methods, but also some unique difficulties. Some of these difficulties stem from problems in evaluating singular or nearly singular integral operators, and solving these difficulties is an active field of research. LÄS MER

  5. 4. Spänning- och flödessimulering av en högtrycksångventil

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Joakim Nörve; [2023]
    Nyckelord :CFD; COMSOL; structural mechanics; heat transfer; CFD; COMSOL; strukturmekanik; värmetransport;

    Sammanfattning : Ventiler utgör en avgörande roll i det industriella samhället och används flitigt inom områden som säkerhet, filtrering och reglering av flöden. Säkerställandet av hållbarhet och drift av ventilen är därför ytters viktigt. Ventilen som undersöks har fyra packningsringar gjord av grafit. LÄS MER

  7. 5. CFD Analysis of the Flow Around a Paraglider Wing

    Master-uppsats, KTH/Teknisk mekanik

    Författare :Caterina Gennari; [2023]
    Nyckelord :Paraglider Wing; CFD; RANS; DES; Aerodynamics; Aerodynamic Hysteresis; FSI; Deformable Structure; Membrane; Shell Elements;

    Sammanfattning : In this study, the characteristics of the flow around a paraglider wing were investigated through the use of Computational Fluid Dynamics (CFD) simulations by solving both Reynolds Averaged Navier-Stokes equations and Delayed Detached Eddy Simulations were employed. This allowed the observation of how the unique shape of the canopy of a paraglider can influence the behaviour of the flow and how aerodynamic hysteresis can manifest on this sort of wing. LÄS MER