Sökning: "metastable states"

Visar resultat 26 - 30 av 43 avhandlingar innehållade orden metastable states.

1. 26. Theoretical understanding of stability of alloys for hard-coating applications and design

   Författare :Hans Lind; Igor Abrikosov; Ferenc Tasnádi; Ralf Drautz; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : The performance of modern hard coating materials puts high demands on properties such as hardness, thermal stability and oxidation resistance. These properties not only depend on the chemical composition, but also on the structure of the material on a nanoscale. LÄS MER

3. 27. Laser Photodetachment of Negative Ions - Fundamental Research and Applications

   Författare :Pontus Andersson; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Negative Ions; Laser Spectroscopy; Photodetachment; Electron Affinity; Mass Spectrometry; Radiative Lifetime; Storage Rings; Mass Spectrometry;

   Sammanfattning : Photodetachment studies of atomic and molecular negative ions in the gas phase are presented. Negative ions are loosely bound quantum systems whose existence is strongly dependent on the correlations between the electrons. LÄS MER

4. 28. Molecular Recognition and Conformational Dynamics in Macromolecules

   Författare :Soumendranath Bhakat; Biofysikalisk kemi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Protein; ligand; host-guet; funnel metadynamics; MM PBSA; well-tempered metadynamics; collective variable; tyrosine; aspartic protease; local fluctuations; hydrogen exchange; time-lagged independent component analysis; principal component analysis; parallel-tempering;

   Sammanfattning : Computational methods gained a widespread use in drug discovery. Understanding conformational dynamics of protein and mechanisms of protein-ligand binding are two major areas in drug discovery. Molecular dynamics (MD) simulation have been routinely used to study conformational dynamics of protein and mechanisms of protein-ligand binding. LÄS MER

5. 29. Experimental Techniques for Studies in Atomic & Molecular Physics

   Författare :Filip Heijkenskjöld; Jan-Erik Rubensson; Peder Royen; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; spectroscopy; fast ion beam laser spectroscopy; time of flight photoelectron photoelectron coincidence; hyperfine structure; Rabi oscillation; Physics; Fysik;

   Sammanfattning : This thesis is based on a selection of six different experimental techniques used for studies in atomic and molecular physics. The techniques analysed in the thesis are compared to find similarities in strategies and ways to avoid sources of error.Paper 1 deals with collision based spectroscopy with 60 keV Xe6+ ions on sodium and argon gas targets. LÄS MER

7. 30. Thin Film and Plasma Characterization of PVD Oxides

   Författare :Ludvig Landälv; Per Eklund; Emmanuelle Göthelid; Björn Alling; Lars Hultman; Erik Lewin; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : The state-of-the-art tools for machining metals are primarily based on a metal-ceramic composite(WC-Co) coated with different combinations of carbide, nitride and oxide coatings. Combinations of these coating materials are optimized to withstand specific wear conditions. LÄS MER