Sökning: "wallen"

Visar resultat 11 - 15 av 29 avhandlingar innehållade ordet wallen.

1. 11. Synchrotron Radiation, Adsorption Isotherms and the Large Hadron Collider Vacuum System

   Författare :Erik Wallén; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; H2; photon stimulated desorption; CO2; cryotrapping; liquid He; accelerators; isotherms; CH4; He; Monte Carlo simulations; synchrotron radiation; vacuum; CO; physisorption;

   Sammanfattning : In circular particle accelerators and storage rings with relativistic beams of particles, e.g. electrons or protons, the vacuum performance of the accelerator is determined by the outgassing from the walls of the beam vacuum chamber. LÄS MER

3. 12. Estimation-based iterative learning control

   Författare :Johanna Wallén; Mikael Norrlöf; Svante Gunnarsson; Jian-Xin Xu; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Iterative learning control; estimation; industrial robotics; performance; Automatic control; Reglerteknik;

   Sammanfattning : In many  applications industrial robots perform the same motion  repeatedly. One way of compensating the repetitive part of the error  is by using iterative learning control (ILC). The ILC algorithm  makes use of the measured errors and iteratively calculates a  correction signal that is applied to the system. LÄS MER

4. 13. On Kinematic Modelling and Iterative Learning Control of Industrial Robots

   Författare :Johanna Wallén; Mikael Norrlöf; Svante Gunnarsson; Geir Hovland; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industrial robots; kinematics; Maple; modelling; iterative learning control; experiments; Automatic control; Reglerteknik;

   Sammanfattning : Good models of industrial robots are necessary in a variety of applications, such as mechanical design, performance simulation, control, diagnosis, supervision and offline programming. This motivates the need for good modelling tools. In the first part of this thesis the forward kinematic modelling of serial industrial robots is studied. LÄS MER

5. 14. Factors Influencing Drivers' Speeding Behaviour

   Författare :Henriette Wallén Warner; Lars Åberg; J. A. Rothengatter; Uppsala universitet; []
   Nyckelord :Psychology; theory of planned behaviour; driver behaviour questionnaire; intelligent speed adaptation; observed speeding; beliefs; attitudes; Psykologi;

   Sammanfattning : Every year many people all over the world are killed and severely injured in road traffic accidents. Even though driving too fast is a behaviour well known to contribute to both the number and the outcome of these accidents, drivers are still speeding. LÄS MER

7. 15. Glacial-meteorological investigations on the Kårsa glacier in Swedish Lappland 1942-1948

   Författare :Carl Christian Wallén; Stockholms högskola; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER