Sökning: "active structures"
Visar resultat 1 - 5 av 717 avhandlingar innehållade orden active structures.
1. Xyloglucan-active enzymes : properties, structures and applications
Sammanfattning : Cellulosabaserade material är världens rikligast förekommande förnyelsebara råvara. Växters cellväggar är naturliga kompositmaterial där den kristallina cellulosan är inbäddad i en väv av hemicellulosa, strukturproteiner och lignin. LÄS MER
2. Interactive Textile Structures
Sammanfattning : This thesis explores the area of smart textile and wearable computing. Smart or Interactive Textiles area generic terms for textile materials and products that in some nontrivial sense are self-active. Smart Textiles represents generation of high-tech, functional textile materials and products. An example of that is wearable computing. LÄS MER
3. Dynamic Wetting of Solid Surfaces, Influence of Surface Structures and Surface Active Polymers
Sammanfattning : The effect of surface structures on the dynamics of wetting was investigated through measurements of the dynamic contact angle and spreading velocity of oil droplets spreading over surfaces with parallel and gridlike V-shaped channels. A rim of liquid was observed to spread out in the channels ahead of the dropfront after a short time of spreading (seconds). LÄS MER
4. Stiffness modification of tensegrity structures
Sammanfattning : Although the concept of tensegrity structures was invented in the beginning of the twentieth century, the applications of these structures are limited, partially due to their low stiffness. The stiffness of tensegrities comes from topology, configuration, pre-stress and initial axial element stiffnesses. LÄS MER
5. Chemical emissions from building structures : emission sources and their impact on indoor air
Sammanfattning : Chemical compounds in indoor air can adversely affect our comfort and health. However, in most cases there is only a limited amount of information available that can be used to assess their health risk. Instead the precautionary principle is often applied, i.e. LÄS MER