Sökning: "field analysis"

Visar resultat 16 - 20 av 3476 avhandlingar innehållade orden field analysis.

1. 16. Field Programmable Gate Arrays and Reconfigurable Computing in Automatic Control

   Författare :Carl Wilhelmsson; Förbränningsmotorer; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; systems analysis; FPGA; Field Programmable Gate Array; programming; Compendex: Field programmable gate arrays FPGA ; programming environments; computer science; programmable controllers; observers; adaptive control; modelling; closed loop systems; logic CAD; control systems; reconfigurable architectures; field programmable gate arrays; Computer Programming; telecommunication control; Control system applications; Real time control; Computer control systems; Control systems; Engine Control; Heat release analysis; Cylinder pressure; power-train control; Vehicle control; High speed; Rapid Prototyping; Combustion control; Automotive control; Control application; High frequency; Computer control; Feedback Control; Closed loop systems; Control; Reconfigurable computing; Reconfigurable hardware; VLSI; Closed loop control; programmable logic arrays; Automatic Control; System on Chip SoC ;

   Sammanfattning : New combustion engine principles increase the demands on feedback combustion control, at the same time economical considerations currently enforce the usage of low-end control hardware limiting implementation possibilities. Significant development is simultaneously and continuously carried out within the field of Field Programmable Gate Arrays (FPGAs). LÄS MER

3. 17. On the Einstein-Vlasov system: Stationary Solutions and Small Data Solutions with Charged and Massless Particles

   Författare :Maximilian Thaller; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Static Solutions; Vector Field Method; non-linear wave equation; massless Einstein-Vlasov system; General Relativity; Conformal Einstein Field Equations; Minkowski stability; Vlasov matter; symmetric hyperbolic system; Einstein-Vlasov-Maxwell system;

   Sammanfattning : The Vlasov matter model describes an ensemble of collisionless particles moving through space-time. These particles interact via the gravitational field which they create collectively. In the framework of General Relativity this gravitational field is described by space-time curvature. LÄS MER

4. 18. Spectral properties of quantum mechanical operators with magnetic field

   Författare :Mikael Persson; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : .... LÄS MER

5. 19. The spectral reflectance of coniferous tree stands and of barley influenced by stress : an analysis of field measured spectral data

   Författare :Johan Kleman; Stockholms universitet; []
   Nyckelord :spectral reflectance; field measurement; middle infrared; crops; fertilisation; irrigation; coniferous forest; helicopter; measuring geometry;

   Sammanfattning : This thesis focuses on the spectral signatures for vegetation. Knowledge about the spectral characteristics of different vegetation types is imperative for an efficient use of existing remote sensing systems, and also to provide guidelines for sensor development. LÄS MER

7. 20. Strong Cosmic Censorship and Cosmic No-Hair in spacetimes with symmetries

   Författare :Katharina Maria Radermacher; Hans Ringström; James Isenberg; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Cosmic Censorship; Cosmic No-Hair; Big Bang; symmetry; Bianchi; T2-symmetry; Gowdy; general relativity; cosmology; late time; initial time; asymptotic behaviour; perfect fluid; scalar field; Einstein equations; Mathematics; Matematik;

   Sammanfattning : This thesis consists of three articles investigating the asymptotic behaviour of cosmological spacetimes with symmetries arising in Mathematical General Relativity.In Paper A and B, we consider spacetimes with Bianchi symmetry and where the matter model is that of a perfect fluid. LÄS MER