Sökning: "wood formation"
Visar resultat 1 - 5 av 211 avhandlingar innehållade orden wood formation.
1. Coated Norway Spruce : Influence of Wood Characteristics on Water Sorption and Coating Durability
Sammanfattning : Wood used outdoors is often degraded and discoloured by microorganisms as a natural part of its life cycle, particularly when exposed to high levels of moisture for prolonged times. In this case, the application of a coating (i.e. paint) is an option for increasing the service life of the wood. LÄS MER
2. A revolution in favour of government : the American constitution and ideas about state formation, 1787-1788
Sammanfattning : This dissertation analyses the debate over the ratification of the American Constitution between the Federalists, who supported the Constitution's adoption, and the Antifederalists, who opposed adoption. It challenges the traditional interpretation of the Federalist persuasion as primarily concerned with limited government and minority rights. LÄS MER
3. Poplar wood formation : genotypical influences on structure and chemistry
Sammanfattning : Genotypical effects on wood formation in aspen (Populus tremula x tremuloides) have been studied at morphological, ultrastructural and micro-distributional levels. To characterize transgenically induced modifications, light-, fluorescence-, UV-, scanning- and transmission electron microscopy have been applied complemented by immunolabeling, histochemistry, multivariate statistics and image analysis. LÄS MER
4. On the wood chipping process : a study on basic mechanisms in order to optimize chip properties for pulping
Sammanfattning : In both the chemical and mechanical pulping process, the logs are cut into wood chips by a disc chipper before fibre separation. To make the wood chipping process more efficient, one have to investigate in detail the coupling between process parameters and the quality of the chips. LÄS MER
5. The significance of ethylene and ETHYLENE RESPONSE FACTORS in wood formation of hybrid aspen
Sammanfattning : The woody tissues serve to stabilise plants, store nutrients and translocate water and minerals. The formation of wood, or ’secondary xylem’, follows a well-defined developmental gradient which is initiated by cell division activity in the vascular cambium. LÄS MER