Sökning: "European oak"
Visar resultat 1 - 5 av 9 avhandlingar innehållade orden European oak.
1. Structure and properties of Vasa oak
Sammanfattning : The Vasa ship is not adequately supported. Measurements of the hull show that the ship deforms and rotate towards the port side. In addition, damages on the hull at support areas have been observed. The damages are due to high compressive loads. LÄS MER
2. Is genetic diversity more important for terpene emissions than latitudinal adaptation? : Using genetically identical trees to better understand emission fluctuations across a European gradient
Sammanfattning : Biogenic volatile organic compounds (BVOCs) are trace gases other than CO2 and CH4 produced and emitted by the vegetation. The group consists of thousands of compounds in various shapes and sizes and with short atmospheric lifetimes. Some of the most common BVOC groups are called isoprene, monoterpenes and sesquiterpenes. LÄS MER
3. Cultural oak landscapes as green infrastructure for human well-being
Sammanfattning : Human and nature interactions have been the ancestral normative model to provide and secure livelihoods worldwide. Hence, humans have been coevolving in an intrinsic relation with the natural system until medieval times. LÄS MER
4. A pheromone-based toolbox of longhorn beetles (Cerambycidae) for monitoring biodiversity in ephemeral deadwood substrates of oak
Sammanfattning : Forest biodiversity is exhibiting a worldwide decline in response to environmentalchanges that result in the rapid loss, degradation, and fragmentation of essential foresthabitats. Saproxylic insects, especially beetles, are an important part of forestbiodiversity by contributing to deadwood decomposition, and serving as importantcomponents of food webs. LÄS MER
5. Effects of Cell Wall Structure on Tensile Properties of Hardwood : Effect of down-regulation of lignin on mechanical performance of transgenic hybrid aspen. Effect of chemical degradation on mechanical performance of archaeological oak from the Vasa ship
Sammanfattning : Wood is a complex material and the mechanical properties are influencedby a number of structural parameters. The objective of this study has been toinvestigate the relationship between the structure and the mechanical propertiesof hardwood. Two levels were of special interest, viz. LÄS MER