Sökning: "and degradation"
Visar resultat 1 - 5 av 2363 avhandlingar innehållade orden and degradation.
1. Mechanical properties of sound and of deteriorated softwood at different length scales : Poromicromechanical modeling and experimental investigations
Sammanfattning : Due to its natural origin and its inherent heterogeneities, mechanical properties of wood are highly anisotropic and show a broad variability, not only between different wood species, but also within a tree. Similar to other biological materials, the wood mi- crostructure is well organized and hierarchically structured from the annual rings visible to the naked eye down to the wood polymers cellulose, hemicellulose, and lignin at the nanometer-scale. LÄS MER
2. Myofibroblasts and the Vascular Endothelium : Impact of Fibrin Degradation Products and miRNA on Vascular Motility and Function
Sammanfattning : Angiogenesis is the formation of new blood vessels from pre-existing vasculature and is important during development as well as wound healing and tissue remodeling. Angiogenesis also occurs during pathological conditions such as diabetic retinopathy and cancer. LÄS MER
3. Electron microscopy and microanalysis of polymers and polymer blends : artifacts and applications
Sammanfattning : Electron microscopy and microanalysis is used to examine the degradation of unstainable polymers and polymer blends in order to gain an understanding and arrive at methods for characterizing microstructures. Several methods have been used in order to obtain complementary ways of establishing artifacts arising from specimen preparation effects, the internal energy of the components, and degradation under the electron beam together with low or zero contrast between phases in a blend. LÄS MER
Sammanfattning : The railway track network is one of the major modes of transportation and among a country’s most valuable infrastructure assets. Maintenance and renewal of railway infrastructure have a vital role in safety performance, the quality of the ride, train punctuality, and the life cycle cost of assets. LÄS MER
5. Microgel Interactions with Peptides and Proteins : Consequence of Peptide and Microgel Properties
Sammanfattning : Microgels are lightly cross-linked hydrogel particles in the sub-micrometer to micrometer size range with a capacity to drastically change their volume in response to changes in the external environment. Microgels have an ability to bind and store substances such as biomacromolecular drugs, notably proteins and peptides, and release them upon stimuli, making them potential candidates as drug delivery vehicles and functional biomaterials. LÄS MER