Search for dissertations about: "core capabilities"

Showing result 16 - 20 of 97 swedish dissertations containing the words core capabilities.

  2. 16. Multilevel three-phase dual active bridge dc-dc converters - A study on converter modulation, capacitive energy requirement, ZVS boundaries, MFT's winding connections, and core losses

    Author : Babak Alikhanzadehalamdari; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; high-voltage power converters; dual active bridge; harmonic analysis; three-phase system; medium-frequency transformer; capacitor sizing; multilevel converters; high power-density systems; transformer winding connection; core loss modeling; dc collector network; soft-switching converters;

    Abstract : The collection and transmission of power from offshore wind turbines using dc have advantages over the ac system. One of the enabling technologies for deploying dc collection is the dc-dc converter that boosts the dc output from the turbine to the medium-voltage dc level of the collection grid. READ MORE

  4. 17. Automatic and Explicit Parallelization Approaches for Equation Based Mathematical Modeling and Simulation

    Author : Mahder Gebremedhin; Peter Fritzson; Erwin Laure; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Modelling; Simulation; Multi-core; Automatic Parallelization; Clustering; Scheduling; Explicit Parallelization; ParModelica; Task Systems; GPGPU;

    Abstract : The move from single-core processor systems to multi-core and manyprocessor systems comes with the requirement of implementing computations in a way that can utilize these multiple computational units efficiently. This task of writing efficient parallel algorithms will not be possible without improving programming languages and compilers to provide the supporting mechanisms. READ MORE

  5. 18. Extending the capabilities of polarizable embedding through damped linear response theory

    Author : Morten Steen Nørby; Jacob Kongsted; Hans Jörgen Aagaard Jensen; Patrick Norman; Stephan Sauer; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : One of the greater challenges of modern quantum chemistry is to meet the growing demands of a detailed description of macro molecules, such as proteins and RNA/DNA. The size of such systems make it an almost impossible task to, from first principle calculations, obtain any detailed information regarding electronic structure. READ MORE

  6. 19. Characterisation of Optical Fibers Using Dual-Comb Swept-Wavelength Interferometry

    Author : Ekaterina Deriushkina; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; coupled-core multi-core fibers; channel modeling; swept-wavelength interferometry; characterisation measurements; transfer function; dual-comb spectroscopy;

    Abstract : The growth in data traffic coupled with trends in internet use will result in a requirement for interfaces of the network to reach Tb/s data rate in the future. Considering this, novel transmission techniques that can increase the date rate with orders of magnitude must be considered. One such example is space-division multiplexing (SDM) fibers. READ MORE

  7. 20. On determining lost core viability in high-pressure die casting using Computational Continuum Mechanics

    Author : Sebastian Kohlstädt; Pär Jönsson; Julio Hernandez; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; high-pressure die casting; lost salt cores; computational continuum mechanics; two-phase compressible flow; OpenFOAM; CFD; fluid-structure interaction; volume-of-fluid method;

    Abstract : The subject of this thesis work is to investigate whether Computational ContinuumMechanics (CCM) can serve as a valuable tool for the casting engineerto determine a priori whether a housing concept with inlying geometries thatso far only exists in Computer Aided Design (CAD) will have the desired coolingperformance and will be manufacturable with an acceptable number ofrejects.As of spring 2019, no application in serial production of lost cores, i. READ MORE