Search for dissertations about: "w o microemulsion"

Showing result 1 - 5 of 6 swedish dissertations containing the words w o microemulsion.

2. 1. NMR Self-Diffusion Studies and Stability Studies of Emulsions

   Author : Ingrid Lönnqvist; LTH Ingenjörshögskolan vid Campus Helsingborg; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; coalescence; emulsion stability; size distribution; restricted diffusion; self-diffusion coefficient; self-diffusion PGSE NMR; surfactant; emulsifier; continuous phase; microemulsion; phase diagram; emulsion; multiple emulsion; cream; conductivity; Physics; Fysik; Chemistry; Kemi;

   Abstract : The aim of this study is to characterize emulsion systems by self-diffusion PGSE NMR methods. The specifics of the emulsions studied are all taken from the literature and they are of the W/O or O/W type stabilized with different emulsifiers. READ MORE

4. 2. Catalysis for Lean NOx Reduction - Aspects of Catalyst Synthesis and Surface Acidity

   Author : Hanna Härelind Ingelsten; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; lean NOx reduction; silica; alumina; FTIR; surface acidity; model catalysts; platinum; HZSM-5; w o microemulsion; aluminum-silicate; hydrocarbon;

   Abstract : From both economic and environmental perspectives it is desirable to reduce the consumption of fossil fuels. One route to increase the fuel efficiency for vehicles is operation in oxygen excess. However, a major problem with this technique is the lean environment, which obstructs catalytic reduction of nitrogen oxides (NOx) to harmless nitrogen. READ MORE

5. 3. Platinum Nanoparticles Prepared in Water-in-Oil Microemulsions -Particle Formation, Support Interaction and Catalytic Activity

   Author : Hanna Härelind Ingelsten; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; platinum; lean NO reduction; aluminium silicate; catalytic activity; silica; w o microemulsion; hydrocarbons; alumina; nanoparticle formation; catalyst preparation;

   Abstract : .... READ MORE

6. 4. Formulation and characterization of W/O nano-dispersions for bioactive delivery applications

   Author : Maria D. Chatzidaki; Aris Xenakis; Bert van Bavel; Werner Kunz; Örebro universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; nano-dispersions; encapsulation; food; DLS; EPR; Cryo-TEM; SAXS; pH-stat; digestion; antioxidants; gastric lipase; pancreatic lipase; Kemi; Chemistry;

   Abstract : The main objective of this study was the formulation of food-grade water-in-oil (W/O) nano-dispersions based mainly on medium or long-chain triglycerides. Two types of dispersions were formulated and structurally compared, namely emulsions and microemulsions. READ MORE

7. 5. Studies on Diffusion of Surfactants and Macromolecules

   Author : Nabil Mikati; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : A new apparatus for measuring the translational diffusion coefficient in liquids at steady state is presented. The advantages of the described technique are i. the ability to characterize the dependence of the diffusion coefficient on concentration with a single experiment, and ii. READ MORE