Sökning: "santos"

Visar resultat 1 - 5 av 44 avhandlingar innehållade ordet santos.

  1. 1. Al-7Si-Mg semi-solid castings – microstructure and mechanical properties

    Författare :Jorge Santos; Anders E.W. Jarfors; Jönköping University; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rheometal™ process; semi‐solid casting; aluminium alloys; grain refinement; segregation; intermetallic phases; heat treatment; mechanical properties;

    Sammanfattning : The vehicles industry is facing increasing demands for fuel efficiency and cost reduction due to environmental legislation, sustainability and customer demands. Therefore, there is a great need to develop and produce lightweight components by using materials and processes that offer higher specific strength and/or design optimization. LÄS MER

  3. 2. Semi-solid Al-7Si-Mg castings – Microstructure and mechanical properties

    Författare :Jorge Santos; Anders E.W. Jarfors; Arne Dahle; Hongbiao Dong; Jönköping University; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rheometal™ process; semi-solid casting; aluminium alloys; dissolution; grain refinement; segregation; intermetallic phases; heat treatment; mechanical properties; fatigue properties; Rheometal™ processen; semi-solid gjutgarna; aluminiumlegeringar; upplösning; kornförfining; segregering; intermetalliska faser; värmebehandling; mekaniska egenskaper; utmattningsegenskaper;

    Sammanfattning : The use of lightweight parts by the vehicle industry produces immediate benefits on the reduction of emissions because less energy is consumed during the production, service, and recycle stages of a product life cycle. Therefore, the development of processes that allow high design freedom for topology optimisation and materials with high specific strength is a great need. LÄS MER

  4. 3. Whey protein adsorption and aggregation on modified stainless steel surfaces in relation to fouling

    Författare :Olga Santos; Livsmedelsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Livsmedelsteknik; Food and drink technology; Modelling; Dynamic light scattering; Aggregation; Flow cell; Ellipsometry; Adsorption; Whey protein; Fouling; Modified stainless steel;

    Sammanfattning : This thesis focuses on the possibilities to reduce fouling by 1.Modifying the stainless steel surface. LÄS MER

  5. 4. Associative Polymer-Polymer and Polymer-Surfactant Systems: Phase Behaviour and the Influence of Chemical Reactions

    Författare :Salome Santos; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Aqueous mixtures of two non-ionic polymers, poly(acrylic acid) (PAA) and the amphiphilic triblock copolymer, (EO)27(PO)67(EO)27, known by its trade name Pluronic® P104, showed an associative phase separation (miscibility gap), which decreased with the decrease of PAA length. It was found that PAA is a much less selective “solvent” to P104 molecules than water. LÄS MER

  7. 5. Ultra-Wideband Wireless Channels - Estimation, Modeling and Material Characterization

    Författare :Telmo Santos; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ultra-wideband; channel modeling; channel parameter estimation; material characterization; microwave measurements;

    Sammanfattning : This licentiate thesis is focused on the characterization of ultra-wideband wireless channels. The thesis presents results on ultra-wideband communications as well as on the ultra-wideband characterization of materials. The communications related work consisted in the measurement and modeling of outdoor scenarios envisioned for infostation systems. LÄS MER