Search for dissertations about: "Träfiber- och virkeslära"
Showing result 1 - 5 of 7 swedish dissertations containing the words Träfiber- och virkeslära.
-
1. Micromechanics of softwoods in the transverse plane : effects on cell and annual ring scales
Abstract : Transverse mechanical properties of wood are important in many practial applications and an interesting scientific subject. A very low transverse shear modulus has been identified in spruce, which causes large strain concentrations in wood structures. READ MORE
-
2. Mechanical behaviour of hardwoods : effects from cellular and cell wall structures
Abstract : Syftet med den här avhandlingen var att undersöka mekaniska egenskaper hos olika arter av lövträd, och koppla egenskaperna till cell- och cellväggsstrukturen i materialet. Arterna som omfattades av undersökningen var Europeisk asp (Populus tremula), hybridasp (Populus tremula x Populus tremuloides) och ek (Quercus robur). READ MORE
-
3. Improvement on cellulose accessibility and reactivity of different wood pulps
Abstract : Cellulosans tillgänglighet och reaktivitet är nyckelparametrar vid framställning av regenererad cellulosa och cellulosaderivat. Det är välkänt att på grund av cellulosans kristallina struktur är tillgängligheten begränsad för lösningsmedel och olika reagens. READ MORE
-
4. Heterologous expression, characterization and applications of carbohydrate active enzymes and binding modules
Abstract : Wood and wood products are of great economical and environmental importance, both in Sweden and globally. Biotechnology can be used both for achieving raw material of improved quality and for industrial processes such as biobleaching. READ MORE
-
5. Conversion of Wood and Non-wood Paper-grade Pulps to Dissolving-grade Pulps
Abstract : Dissolving-grade pulps are commonly used for the production of cellulose derivatives and regenerated cellulose. To obtain products of high quality, these so-called "special" pulps must fulfill certain requirements, such as high cellulose content, low hemicellulose content, a uniform molecular weight distribution and high cellulose reactivity. READ MORE