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Electrical Machine Design with Directly Cooled Laminated Fractional Pitch Windings

A directly cooled winding in an electrical machine is an appealing solution for a traction application when the electrical machine is operating near peak power for extended periods of time. This directly cooled winding is based on a laminated structure where the power losses in the conducting strips are instantly dissipated by an air-flow between the strips. As an outcome, the hottest component of

The direct and inverse problem for obliquely incident transient elastodynamic waves

The direct and inverse scattering problems for a plane-stratified viscoelastic medium excited by a transient plane wave of SH or P-SV type are treated. The viscoelastic medium is characterized by two time and space dependent memory functions and a spatially dependent density. The direct and inverse problems are solved by a time-domain wave propagator method that is related to the Green functions t

Vowels in infant- and adult-directed speech

F1 and F2 frequencies of the vowels /i/, /a/ and /u/ were measured in speech directed to an infant and to adults. The vowels were taken from content words as well as function words. The results showed that the vowel triangles in speech to the infant were expanded compared to those in speech to adults, but only in the content words. For function words, the opposite pattern was found: adults produce

Review of Anna J Evertsson, »Gå vi till paradis med sång». Psalmers funktion i begravningsgudstjänster. Lund 2002

Förf:s övergripande frågeställning är vilken roll psalmerna spelar för mötet mellan människors behov och kyrkans trosbudskap i sorgesituationen. Begravningsgudstjänsten ses som mötesplats mellan ”samhällsaspekten” (mindre lyckad beteckning för det existentiella) och ”kyrkoaspekten”. Evertsson har använt Göran Gustafssons enkätmaterial från 2222 begravningsgudstjänster och gjort ett urval utifrån p

Simple wave solutions for the Maxwell equations in bianisotropic, nonlinear media, with application to oblique incidence

Using simple waves and six-vector formalism, the propagation of electromagnetic waves in nonlinear, bianisotropic, nondispersive, homogeneous media is analyzed. The Maxwell equations are formulated as an eigenvalue problem, whose solutions are equivalent to the characteristic directions of the wave front. Oblique incidence of plane waves in vacuum on a half space of nonlinear material is solved, g