Sökning: "liquid diffusion"

Visar resultat 21 - 25 av 207 avhandlingar innehållade orden liquid diffusion.

1. 21. On the adsorption behaviour of saliva and purified salivary proteins at solid/liquid interfaces

   Författare :Liselott Lindh; Malmö högskola; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; acidic proline-rich proteins; adsorption; BSM; diffusion; ellipsometry; interfaces; mass transport limitation; mucins; MUC5B; saliva; salivary proteins; statherin; surface properties;

   Sammanfattning : Den salivfilm som bildas genom selektiv proteinadsorption på ytor i munhålan har stor profylaktisk betydelse genom sin skyddande funktion och befrämjar därigenom oral hälsa. Några av de adsorberade komponenterna har smörjande funktion (t ex muciner, sura prolinrika proteiner (PRP) och statherin), som är viktig bl a för att förhindra slitage mellan tandytor vid tuggning och hos gnisslare. LÄS MER

3. 22. Alloy element redistribution during sintering of powder metallurgy steels

   Författare :Abdul Malik Tahir; Gustav Amberg; Jose Manuel Torralba; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cu redistribution kinetics; diffusion; phase field modeling; powder metallurgy; swelling; liquid phase sintering; Teknisk materialvetenskap; Materials Science and Engineering; Engineering Mechanics; Teknisk mekanik;

   Sammanfattning : Homogenization of alloying elements is desired during sintering of powder metallurgy components. The redistribution processes such as penetration of liquid phase into the interparticle/grain boundaries of solid particles and subsequent solid-state  diffusion of alloy element(s) in the base powder, are important for the effective homogenization of alloy element(s) during liquid phase sintering of the mixed powders. LÄS MER

4. 23. ICME guided study of mass transport in production and application of cemented carbides

   Författare :Armin Salmasi; Henrik Larsson; Lars Höglund; Andreas Blomqvist; Joakim Odqvist; John Ågren; José Garcia; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cemented carbides; non-homogeneous structures; liquid phase migration; ICME; CALPHAD; materials design; viscosity; diffusion; mass transport; thermodynamics; kinetics; ab-initio; Materials Science and Engineering; Teknisk materialvetenskap;

   Sammanfattning : Cemented carbides are metallic composites consisting of a WC hard phase and a ductile binder, usually Co-based, produced by powder metallurgy and sintering. Cemented carbides are an essential part of modern material and manufacturing processes. LÄS MER

5. 24. Lipid-based liquid crystals as drug delivery vehicles for antimicrobial peptides

   Författare :Lukas Boge; Chalmers tekniska högskola; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; hexosome; antimicrobial peptide; cubosome; proteolysis; AMP; liquid crystalline nanoparticles; glycerol monooleate; Liquid crystals;

   Sammanfattning : The development of antimicrobial resistance is a great challenge within the health sector around the world. The demand for new efficient treatments is alarming in order to treat various bacterial infections in the near future. Antimicrobial peptides (AMPs) are a group of novel antibiotics that have gain more and more attraction the past decade. LÄS MER

7. 25. Hindered diffusion of nanoparticles

   Författare :Ananda Subramani Kannan; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Brownian motion; Hydrodynamic interactions; Multiphase DNS; Mobility; Langevin-immersed boundary method; Colloids; Aerosols; Nanoscale and Rarefied gas.;

   Sammanfattning : Brownian theory provides us with a powerful tool which can be used to delve into a microscopic world of molecules, cells and nanoparticles, that was originally presumed to be beyond our reach. Consequently, modeling the inherent dynamics of a system through a Brownian transport equation is of relevance to several real-word problems that involve nanoparticles including, the transport and mitigation of particulate matter (PM) generated though fossil fuel combustion and nanocarrier mediated drug delivery. LÄS MER