Search for dissertations about: "cleanliness of an area"

Found 5 swedish dissertations containing the words cleanliness of an area.

2. 1. Matter that matters : A study of household routines in a process of changing water and sanitation arrangements

   Author : Helena Krantz; Jan-Olof Drangert; Elin Wihlborg; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Urban water and sanitation arrangements; change; routines; everyday life; household management; water use; pocket of local order; matter out of place; comfort; cleanliness; convenience; sustainability; households; Miljöteknik; teknisk hygien; vatten och avlopp; Water in nature and society; Vatten i natur och samhälle;

   Abstract : Our society changed, but the urban water and sanitation system of today is roughly the same as it was 100 years ago. The system is designed for, developed from and sustained by human activities, and has since its introduction affected household patterns of routine activities. READ MORE

4. 2. A Study of the Adhesion Strength of Plasma Sprayed Coatings

   Author : Fouzi Bahbou; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Splat.; Surface roughness; Mechanical anchoring; Grit blasting; Adhesion strength; Protal® process; Fractal analysis; Thermal spraying; Coating; Surface pre-treatment;

   Abstract : Surface preparation prior to thermal spraying is a key factor in ensuring a good adhesion of the coating onto the part to be coated. Surface pre-treatment conditions and methods have mainly been developed experimentally and have changed little over the years. READ MORE

5. 3. Pulp displacement washing - An investigation of the influence of fibre and bed properties using a novel measurment technique

   Author : Jenny Lindau; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; displacement washing; pulp properties.; measurement technique; compression; dispersion; fibre damage; local properties; kraft pulp;

   Abstract : There are many incentives for making the pulp washing process as efficient as possible: an efficient separation of the pulp from the black liquor will increase energy efficiency, reduce costs by minimizing the need for make-up chemicals and improve the bleaching process. Research in this area has, however, been more or less neglected and in the existing literature there are many discrepancies as to how different parameters influence the washing process. READ MORE

6. 4. Preparation and Characterization of Glow Disharge Modifies Titanium Surfaces

   Author : Björn-Owe Aronsson; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Titanium; surface modification; surface properties; plasma techniques; oxidation; surface spectroscopy; TiO2; biomaterials;

   Abstract : The main theme of the present thesis is controlled preparation and characterization of oxidized titanium surfaces. Such surfaces are of general technological interest. READ MORE

7. 5. On the Origin and Distributions of the Inclusions in Production-scale ESR and PESR Remelted Ingots and Materials from Different Ingot Sizes and Solidification Structures

   Author : Eva Sjöqvist Persson; Pär Jönsson; Torbjörn Carlberg; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials Science and Engineering; Teknisk materialvetenskap;

   Abstract : The study was carried out with the aim to evaluate the origin, morphology, and distribution of the non-metallic inclusions (NMI) in electro-slag remelted (ESR) steels and in electro-slag remelted steels using a pressured controlled inert atmosphere (PESR). In addition to the NMI studies, the solidification structure in different ingot sizes were studied in order to define the influence of the solidification on the NMI characteristics. READ MORE