Sökning: "Rikard Larsson"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden Rikard Larsson.

1. 1. Improved Material Models for High Strength Steel

   Författare :Rikard Larsson; Larsgunnar Nilsson; Linköpings universitet; []
   Nyckelord :Plastic anisotropy; non-linear strain paths; mixed isotropic-kinematic hardening; isotropic-distortional hardening; dynamic strain ageing; static strain ageing; marten- sitic transformation;

   Sammanfattning : The mechanical behaviour of the three advanced high strength steel grades, Docol 600DP, Docol 1200M and HyTens 1000, has been experimentally investigated under various types of deformation, and material models have been developed, which account for the experimentally observed behaviour.Two extensive experimental programmes have been conducted in this work. LÄS MER

3. 2. Reversible Sulfur Reactions in Pre-Equilibrated and Catalytic Self-Screening Dynamic Combinatorial Chemistry Protocols

   Författare :Rikard Larsson; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dynamic Combinatorial Chemistry; Reversible sulfur reactions; Catalytic self-screening; Carbohydrates; Lectins; Quartz Crystal Microbalance; Organic chemistry; Organisk kemi;

   Sammanfattning : Dynamic Combinatorial Chemistry (DCC) is a recently introduced supramolecular approach to generate dynamically interchanging libraries of compounds. These libraries are made of different building blocks that reversibly interact with one another and spontaneously assemble to encompass all possible combinations. LÄS MER

4. 3. Synthesis Towards Biologically Active Natural Products

   Författare :Rikard Larsson; Centrum för analys och syntes; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Transtaganolide; basiliolide; natural product; total synthesis; biomimetic; Thapsia; Diels-Alder; Ireland-Claisen; Pictet-Spengler; tetrahydroisoquinoline; indole;

   Sammanfattning : In 2005 two research groups independently reported the isolation of a series of structurally intriguing C-19 terpenolides from the plants Thapsia transtagana and Thapsia garganica. The compounds were shown to be potent inhibitors of the sarco/endoplasmic reticulum Ca2+-ATPases. LÄS MER

5. 4. Dynamic Systems for Screening, Control and Identification of Protein-Ligand Interactions

   Författare :Rikard Larsson; Olof Ramström; Michel R. Gagné; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dynamic combinatorial chemistry; Dynamic kinetic combinatorial resolution; Catalytic screening; Transthiolesterification; Thiol disulfide interchange; Nitroaldol reaction; Lectins; Hydrolases; Dynamic self-inhibition; Organic chemistry; Organisk kemi;

   Sammanfattning : Dynamic systems for screening, control and identification of different protein-ligand interactions are presented. Dynamic chemistry is used to produce new compounds/constituents in situ that can interact with a target molecule. Several entities can be introduced at the same time and interact with one another. LÄS MER

7. 5. On Material Modelling of High Strength Steel Sheets

   Författare :Rikard Larsson; Larsgunnar Nilsson; Odd-Sture Hopperstad; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; material modelling;

   Sammanfattning : The work done in this thesis aims at developing and improving material models for use in industrial applications.The mechanical behaviour of three advanced high strength steel grades, Docol 600DP, Docol 1200M and HyTens 1000, has been experimentally investigated under various types of deformation, and material models of their behaviour have been developed. LÄS MER