Sökning: "topography"

Visar resultat 26 - 30 av 372 avhandlingar innehållade ordet topography.

1. 26. Kungamakt och bonderätt : om danska kungar och bönder i riket och i Göinge härad ca 1525-1640

   Författare :Stefan Persson; Historia; []
   Nyckelord :HUMANIORA; HUMANITIES; De-centralised structure; Inter-dependence; Topography; Border region; Border defences; Identity; Militarisation; Centralisation; Social discipline; Historia; Politisk historia; Political history; Interaction; History;

   Sammanfattning : In the early-modern period, Danish peasants living on crown estates across the country found a profitable way of interacting with the crown and its representatives. The necessary co-existence of rulers and ruled was marked by inter-dependence, solidarity of interest, and inter-subjective resolution of conflict. LÄS MER

3. 27. Studies on various culture systems for chondrocytes and osteoblasts

   Författare :Juha Prittinen; Mikko Lammi; Minna Kellomäki; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cell biology; chondrocyte; osteoarthritis; surface materials; topography; tissue engineering; mechanical stimulation; Medical Cell Biology; medicinsk cellbiologi;

   Sammanfattning : Osteoarthritis and osteochondral defects are ailments that are increasing in frequency as the lifespan of the population increases and sedentary lifestyle becomes more common. Osteoarthritis is an inflammatory disease that causes the progressive degeneration of articular surfaces and the underlying bone. LÄS MER

4. 28. Nanocomposite films for corrosion protection

   Författare :Majid Sababi; Jinshan Pan; J.M.C. (Arjan) Mol; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; corrosion protection; nanocomposite; coating; tool alloy; layer‐by‐layer; polarization; passivity; nanomechanical; topography; Mefp‐ 1; ceria nanoparticle; PAni; UV‐cure; AFM; Peak Force QNM; EIS; SEM; CRM; QCM‐D; ATR‐FTIR;

   Sammanfattning : This thesis describes technical and scientific aspects of new types of composite films/coatings for corrosion protection of carbon steel, composite films with nanometer thickness consisting of mussel adhesive protein (Mefp‐1) and ceria nanoparticles, and polymeric composite coatings with micrometre thickness consisting of conducting polymer and ceria nanoparticles in a UV‐curing polyester acrylate (PEA) resin.The influence of microstructure on corrosion behaviour was studied for a Fe‐Cr‐V‐N alloy containing micro‐sized nitrides with different chemical composition spread in martensitic alloy matrix. LÄS MER

5. 29. Structure, Morphology, and Catalytic Properties of CuOx/CeO2 Model Catalysts

   Författare :Björn Skårman; Centrum för analys och syntes; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Synchrotron radiation; High-energy Diffraction; X-ray Absorption Fine Structure Spectroscopy.; Chemical technology and engineering; Kemiteknik och kemisk teknologi; Chemistry; Kemi; Material technology; Materiallära; materialteknik; X-ray photoelectron spectroscopy; Atomic force microscopy; Gatan Image Filter GIF ; Energy-filtered TEM; High-resolution electron microscopy; Inert gas condensation IGC ; rf Magnetron sputtering; Thermal activation; Batch reactor; Carbon monoxide oxidation; Surface sensitivity; Catalytic anisotropy; Growth; Nucleation; Topography; Roughness; Core-shell structures; Morphology; Nanostructured; Nanocomposite; Nanoparticles; Surface structure; Polycrystalline surfaces; Thin films; Copper oxide; Cerium dioxide CeO2 ; Ceria;

   Sammanfattning : Cerium dioxide, or ceria, is a chemically stable oxygen ion conducting material with a capacity to store and release oxygen, and is therefore extensively used in combustion catalysts. The Cu-Ce-O system has been identified as one of the most active catalysts for the combustion of carbon monoxide. LÄS MER

7. 30. Methane exchange in a boreal forest: : the role of soils vegetation and forest management

   Författare :Elin Sundqvist; Institutionen för naturgeografi och ekosystemvetenskap; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; chamber measurements; gradient measurements; clear-cut; topography; water table depth;

   Sammanfattning : Popular Abstract in English Forests have a positive impact on the level of greenhouse gases in the atmosphere because they absorb carbon dioxide through photosynthesis and store carbon in the soil. Moreover, many forests function as a sink for the greenhouse gas methane (CH4). LÄS MER