Sökning: "nonlinear"

Visar resultat 21 - 25 av 1373 avhandlingar innehållade ordet nonlinear.

1. 21. Transient waves in nonstationary media : with applications to lightning and nonlinear media

   Författare :Ingegerd Åberg; Institutionen för elektro- och informationsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; lightning; Klein-Gordon; nonlinear; characteristics; wave splitting; imbedding; sources; propagators; Green functions; direct and inverse scattering; Nonstationary; transient; high-frequency switching; Kerr.; Technological sciences; Teknik;

   Sammanfattning : Propagation of transient waves in nonstationary, inhomogeneous, dispersive, stratified media is considered. Waves originating from sources exterior to the scatterer as well as from internal sources are treated. Algorithms are developed and illustrated by computations of wave phenomena in stationary, nonstationary and weakly nonlinear media. LÄS MER

3. 22. Less is more? Loudness aspects of prescriptive methods for nonlinear hearing aids

   Författare :Karolina Smeds; KTH; []
   Nyckelord :hearing impairment; hearing aid; nonlinear; WDRC; hearing aid experience; prescription; loudness; loudness model; speech intelligibility; preference;

   Sammanfattning : In Sweden, about 10% of the adult population experienceshearing problems that cause them difficulties in everydaycommunication, and approximately 60 000 people are providedwith hearing aids each year. Despite the fact that modernhearing aids can facilitate speech communication in a widerange of listening environments, many hearing-aid users aredissatisfied with their hearing aids. LÄS MER

4. 23. Essays on Nonlinear Pricing and Welfare

   Författare :Tommy Andersson; Nationalekonomiska institutionen; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; ekonomisk teori; ekonomiska system; ekonomisk politik; economic policy; Nationalekonomi; ekonometri; economic systems; economic theory; econometrics; Economics; Monopoly.; Welfare; Budget-balance; Redistribution; Envy-freeness; Nonlinear pricing;

   Sammanfattning : The price of a good is said to be nonlinear if the unit price not is constant but depends on some aspect of the quantity (or quality) purchased. This form of pricing is commonly used in many industries, e.g. the electricity and water industries, and has many desirable properties. LÄS MER

5. 24. On computational methods for nonlinear estimation

   Författare :Thomas Schön; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Nonlinear estimation; Particle filter; Kalman filter; System identification; Convex optimization; Differential-algebraic equation; TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : The Bayesian approach provides a rather powerful framework for handling nonlinear, as well as linear, estimation problems. We can in fact pose a general solution to the nonlinear estimation problem. However, in the general case there does not exist any closed-form solution and we are forced to use approximate techniques. LÄS MER

7. 25. Transient Electromagnetic Waves in Nonlinear Media

   Författare :Daniel Sjöberg; Institutionen för elektro- och informationsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signal processing; nonlinear materials; Electromagnetic waves; instantaneous response; waveguides; shock waves; entropy condition; Elektronik och elektroteknik; Electronics and Electrical technology; Signalbehandling; Electromagnetism; optics; acoustics; Elektromagnetism; optik; akustik;

   Sammanfattning : This thesis is concerned with the propagation of transient electromagnetic waves in nonlinear media. It consists of a General Introduction and five scientific papers. The General Introduction gives a broad overview of nonlinear electromagnetic phenomena. LÄS MER