Sökning: "viveca wallqvist"

Hittade 2 avhandlingar innehållade orden viveca wallqvist.

1. 1. Interactions between non-polar surfaces in water: Fokus on talc, pitch and surface roughness effects

   Författare :Viveca Wallqvist; Per Claesson; Janne Laine; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Talc; surface forces; capillary attraction; hydrophobic interaction; pitch control; wetting agent; dispersing agent; adsorption; imbibition; absorption; permeation; atomic force microscopy; colloidal probe; Hamaker constant; surface roughness; nanostructure.; Talk; kapillärattraktion; ytkrafter; hydrofob växelverkan; hartskontroll; vätningsmedel; dispergeringsmedel; adsorption; uppsugning; absorption; permeabilitet; atomkraftsmikroskopi; kolloidal partikel; Hamakerkonstant; ytråhet; nanostrukturerad yta.; Surface and colloid chemistry; Yt- och kolloidkemi; Physical chemistry; Fysikalisk kemi; Chemistry; Kemi;

   Sammanfattning : The aim of this thesis work was to gain understanding of the interactions between talc mineral and surfaces, liquids and chemicals relevant for industrial applications, such as pulp and paper. Talc is used in the pulp and paper industry as a filler pigment, in control of pitch (lipophilic extractives) deposits and as a coating pigment. LÄS MER

3. 2. Biomechanical Analysis of Fall Injuries using Finite Element Modeling

   Författare :Pooya Sahandifar; Svein Kleiven; Viveca Wallqvist; Yunhua Luo; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fall induced injury; finite element analysis; rubberized asphalt mixture; shock-absorbing pavement; hip fracture; elderly; sideways fall; whole-body model;

   Sammanfattning : A fall is a serious health issue for the elderly. Among different fall types, the sideways fall is considered to be more severe concerning the injury outcome. LÄS MER