Sökning: "boundary behaviour"

Visar resultat 16 - 20 av 215 avhandlingar innehållade orden boundary behaviour.

1. 16. Integrated Pedestrian Safety Assessment: A Method to Evaluate Combinations of Active and Passive Safety

   Författare :Nils Lübbe; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; AEB; assessment; pedestrian; comfort boundary; driver behaviour; False Positive; integrated safety; airbag; FCW; reaction time;

   Sammanfattning : Pedestrian road casualties are a major concern in many countries. Vehicle safety systems attempt to reduce casualties, and the accurate assessment of such systems is therefore essential. Passive safety assessment is well established, and additional active safety assessment has recently emerged. LÄS MER

3. 17. Topics on subelliptic parabolic equations structured on Hörmander vector fields

   Författare :Marie Frentz; Kaj Nyström; Luca Capogna; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; subelliptic; parabolic; obstacle problem; boundary behaviour; weak approximation; Mathematics; matematik;

   Sammanfattning : .... LÄS MER

4. 18. Inclusion Behaviour under a Swirl Flow in a Continuous Casting Process

   Författare :Yang Ying; Pär Jönsson; Dong-Yuan Sheng; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; inclusion behaviour; swirl flow; rotating magnetic field; electromagnetic swirl flow generator; full type; half type; submerged entry no zzle; mold;

   Sammanfattning : A swirl flow generated in a submerged entry nozzle (SEN) can effectively improve a flow pattern and heat transfer in a continuous casting process by using the methods of “swirl blade type” and “electromagnetic type”. In order to obtain a further in-depth understanding with respect to the effect of a swirl flow on a continuous casting process, the inclusion behaviour in a SEN and a mold was studied in the present work. LÄS MER

5. 19. Energy Consumption and Running Time for Trains : modelling of running resistance and driver behaviour based on full scale testing

   Författare :Piotr Lukaszewicz; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy consumption; Running time; running resistance; driver behaviour; freight; train; energy coasting method; aerodynamic drag; driver model; degree of coasting; slippage; wind; Energy saving; braking ratio; powering ratio; full scale testing; Vehicle engineering; Farkostteknik;

   Sammanfattning : The accuracy in determined energy consumption and runningtime of trains, by means of computer simulation, is dependent upon the various models used. This thesis aims at developing validated models of running resistance, train and of a generaldriver, all based on full scale testing. LÄS MER

7. 20. Wave Splitting and Effective Boundary Conditions for Structural Elements

   Författare :Martin Johansson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; approximate boundary condition; Mindlin plate; Timoshenko beam; thin plates; cylindrical coordinates; series approximation; wave splitting; dispersion; fluid-loaded plate; Biot;

   Sammanfattning : The subject of this thesis is twofold. The first part concerns the wave splitting of structural elements. The second part concerns approximate boundary conditions for fluid-loaded thin plates. Wave splitting is a mathematical tool for the formulation of scattering problems in the time domain that aims at solving inverse problems, e. LÄS MER