Search for dissertations about: "coupling method"

Showing result 1 - 5 of 438 swedish dissertations containing the words coupling method.

  1. 1. Analysis of slotted waveguide antennas

    Author : Lars Manholm; [1998]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; coupling junction; slot antenna; compound slot; mutual coupling; wraparound slot; waveguide slot; coupling slot; mutual admittance; edge slot; waveguide junction; moment method;

    Abstract : .... READ MORE

  2. 2. Finite Element Procedures for Fluid-structure Interaction

    Author : Joakim Hermansson; [2003]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Nitsche s method; stabilized Crouzeix-Raviart; Winslow s method; Raviart-Thomas; space-time FE; stretched elements; FSI; FEM; weak coupling; mesh smoothing; acoustic FSI; ALE;

    Abstract : This thesis concerns finite element (FE) methods for solving fluid-structure interaction (FSI) problems. Two types of fluid-structure interaction are considered. A finite element method for solving the interaction between a flowing incompressible fluid and a linear elastic structure is proposed. The flow is assumed to be laminar. READ MORE

  3. 3. Acoustic source characterisation for non-linear in-duct sources

    University dissertation from Institutionen för farkostteknik

    Author : Fredrik Albertson; [2001]
    Keywords : in-duct source; source characterisation; non-linear source; linearity test; hybrid method; IC-engine; muffler; coupling method;

    Abstract : Different ways to model acoustic in-duct sources have beenanalysed. Measurements were conducted on two diesel truckengines. It was found that for steady state oscillations, onecould linearise in the neighbourhood of a given linearisationpoint, i.e. READ MORE

  4. 4. Iron or Copper? - Method Development and Mechanistic Studies on Cross-Coupling Reactions

    University dissertation from Institutionen för farkostteknik

    Author : Per-Fredrik Larsson; Göteborgs universitet.; Gothenburg University.; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Iron; Copper; Transition metal; Cross-coupling; Reaction mechanism; Kinetic investigation; Hammett study; Sustainable catalysis; Trace-metal; Mass-transfer; Ligand development; Ligand scope;

    Abstract : The area of catalysis has had an immeasurable impact on modern society. This has been acknowledged through several Nobel prizes during the 20th century ranging from Haber (1918) for the synthesis of ammonia to Richard F. Heck, Ei-ichi Negishi, and Akira Suzuki (2010) for palladium-catalyzed cross-coupling reactions. READ MORE

  5. 5. Analysis and Design of Conformal Array Antennas

    University dissertation from Stockholm : KTH

    Author : Patrik Persson; [2002]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Conformal antennas; conformal arrays; UTD; high frequency method; MoM; hybrid method; mutual coupling; singly curved surface; doubly curved surface; geodesics; dielectric covered circular cylinder; non-paraxial region. paraxial region; waveguide fed; TECHNOLOGY Electrical engineering; electronics and photonics Electrical engineering; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik Elektroteknik;

    Abstract : Today there is a great need for communication between people and even between things, using systems onboard e.g. aircraft, cars, ships and satellites. As a consequence, these communications needs require antennas mounted on or integrated in the surfaces of different vehicles or platforms, i. READ MORE