Search for dissertations about: "C. Rosen"

Showing result 1 - 5 of 29 swedish dissertations containing the words C. Rosen.

  2. 1. Cathodic Arc Synthesis of Ti-Si-C-N Thin Films : Plasma Analysis and Microstructure Formation

    Author : Anders Eriksson; Johanna Rosén; Lars Hultman; Arutiun Ehiasarian; Linköpings universitet; []
    Keywords : ;

    Abstract : This Thesis explores the arc deposition process and films of Ti-Si-C-N, inspired by the two ternary systems Ti-Si-N and Ti-C-N, both successfully applied as corrosion and wear resistant films. The correlation between cathode, plasma, and film properties are studied for a comprehensive view on film formation. READ MORE

  4. 2. Telomeric DNA in Chironomus, a naturally telomerase-free system

    Author : Monika Rosén; Udo Häckers grupp Utvecklingsbiologi i invertebrater; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biology; Chironomus; extrachromosomal telomeric repeats; RNA-DNA complex; 3´overhang; telocentric chromosome end; Telomere; complex repeats; Biologi; Genetics; cytogenetics; Genetik; cytogenetik;

    Abstract : Telomeres are specialized complexes of DNA and associated proteins that protect the ends of eukaryotic chromosomes. Although most organisms have short repeated DNA sequences at their telomeres, which are specified and maintained by the enzyme telomerase, there are a few exceptions. READ MORE

  5. 3. Cathodic Arc Synthesis of Ti-Si-C-N Thin Films from Ternary Cathodes

    Author : Anders Eriksson; Johanna Rosén; Claudia Walter; Linköpings universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : Cathodic arc deposition is a powerful technique for thin film synthesis, associated with explosive phase transformations resulting in an energetic and highly ionized plasma. This Thesis presents film growth through arc deposition from compound cathodes of Ti3SiC2, providing source material for plasma and films rich in Si and C. READ MORE

  6. 4. Mechanistic investigations of chemical reactions on 2D MXenes and metal surfaces from first-principles

    Author : Kaifeng Niu; Jonas Björk; Johanna Rosén; Lifeng Chi; Daniele Passerone; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Density functional theory; 2D MXenes; On-surface synthesis; C-H activation; Electrochemical nitrogen reduction;

    Abstract : Chemical reactions on surfaces play a central role both for our daily life and industrial purposes, including the storage and release of energy, as well as the formation of new materials. To achieve high efficiency, catalysis lies in the heart of chemical reactions as it plays a critical role in accelerating the chemical transformation to target products. READ MORE

  7. 5. Nanostructured TiN/ZrAlN and HfAlN Thin Films : Effect of Structure on Mechanical Properties

    Author : Marcus Lorentzon; Naureen Ghafoor; Jens Birch; Johanna Rosén; Peter Hedström; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Transition metal nitrides are a remarkable group of ceramic materials that offer exceptional properties such as high hardness, low tribological wear, excellent thermal stability, and high oxidation resistance. Alloys such as TiN, CrN, VN, ZrN, and HfN have been identified as ideal candidates for protective coatings on cutting tool inserts in the metal processing industry. READ MORE