Essays about: "spridning"

Showing result 11 - 15 of 627 essays containing the word spridning.

  1. 11. Propagation of Nuclear Data Uncertainties for Reactor Physics Parameters in Fluorine-19-based Molten Salt Reactors

    University essay from Uppsala universitet/Tillämpad kärnfysik

    Author : Sigfrid Stjärnholm; [2023]
    Keywords : ;

    Abstract : It could be argued that a renaissance is taking place for the global interest in nuclear power - especially for the development of the next generation of reactor systems that aim at solving the problems with contemporary energy production with nuclear technology. One such proposed concept for Gen IV nuclear power is a Molten Salt Reactor (MSR), in which the nuclear fuel is in solution of a salt - often based on fluorine or chlorine. READ MORE

  3. 12. Design of a grating lobe mitigated antenna array architecture integrated with low loss PCB filtering structures

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Eduardo Salvador Lopez; [2023]
    Keywords : Band-pass filters; Beam forming networks; Irregular subarrays; Particle Swarm Optimization; PCB; Penrose tessellation; Planar phased arrays; Quantization lobes; Scanning; Suspended stripline; Bandpassfilter; lobformning; matningsnätverk; Irreguljära gruppantenner; Particle Swarm Optimization; PCB; Penrose tessellation; Plana fasade gruppantenner; sidlober; Utstyrningsvinkel; Suspended stripline;

    Abstract : Massive multiple input multiple output - MIMO systems are a reality and modern communication systems rely upon this technology to cope with the increasing need for capacity and network usage. Antenna arrays are at the heart of the of the massive-MIMO system and are the enabling technology. READ MORE

  4. 13. Arbete med biologisk mångfald på Kungliga Djurgården : med fokus på rödlistade och invasiva arter

    University essay from SLU/Dept. of Ecology

    Author : Vanda Barkstedt; [2023]
    Keywords : biologisk mångfald; rödlistade arter; invasiva arter; skötselåtgärder; bekämpningsåtgärder; Kungliga Djurgården; Kungliga Djurgårdens förvaltning;

    Abstract : Fler och fler arter hotas av förändrad markanvändning, klimatförändringar, spridning av invasiva arter m.m. För att motverka den negativa utvecklingen har urbana grönområden blivit allt viktigare. READ MORE

  5. 14. Fracture simulation with a hyperelastic phase field model

    University essay from KTH/Hållfasthetslära

    Author : Adrien Fradet; [2023]
    Keywords : Fracture; Phase field modeling; Hyperelasticity; Brott; fasfält-methoden; hyperelasticite;

    Abstract : The phase field method is a versatile tool to study crack initiation and propagation in systems with complex geometries. Based on a variational formulation of the equilibrium equations, the sharp crack topology is regularized by a crack with diffusive edges and the damage is described by a continuous phase field variable. READ MORE

  6. 15. En metodstudie för lägre andel avverkningssprickor

    University essay from SLU/School for Forest Management

    Author : Emil Andersson; [2023]
    Keywords : kapsprickor; sågutbytesförlust; fällsprickor;

    Abstract : Denna undersökning är ett examensarbete gjort vid SLU, Skogsmästarskolan i Skinnskatteberg. Syftet med undersökningen var att hitta och definiera arbetsmetoder, tekniska hjälpmedel och rutiner som påverkar andelen avverkningssprickor i sågtimret. Undersökningen är begränsad till stora och mellanstora skördare i slutavverkning. READ MORE