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Transient electromagnetic wave propagation in a stratified, anisotropic, dispersive medium is considered. Specifically, the direct scattering problem is addressed. The dispersive, anisotropic medium is modeled by constitutive relations (a 3 3 matrix-valued susceptibility operator) containing time convolution integrals. In the general case, nine different susceptibility kernels characterize the med
Nearfield Radar Cross Section (RCS) measurements and Inverse Synthetic Aperture Radar (ISAR) processing are used in this study to obtain geometrically correct images and farfield RCS. The back projection algorithm is used to determine the amplitudes and locations for the scatterers in a point by point imaging process. Different approximations are used to sum the nearfield RCS recorded at an azimut
This text contains an overview of the field of frost and salt-frost resistance of concrete. It consists of three parts: First, a summary of known phenomena of frost and salt frost deterioration of concrete, then a description of thermodynamics of ice formation in porous materials, and finally a description of proposed models and mechanisms of deterioration during frost and salt frost attack. The c
Popular Abstract in Swedish Denna avhandling berör storskalig genetisk variation och fylogeni hos arterna i växtsläktet Alisma (svaltingar). Den naturliga utbredningen för detta släkte av vatten- eller sumpväxter inskränker sig till norra halvklotets tempererade områden. Den vanligaste arten i större delen av Europa är Alisma plantago-aquatica (svalting eller kranssvalting som den ibland också kalIn the present thesis the phylogeny and patterns of genetic diversity of the plant genus Alisma (Alismataceae) were investigated by means of genetic markers (RAPDs, allozymes, and ITS and trnL sequences). Additionally, morphological studies were carried out in paper IV. All species in the genus were found to be closely related to each other and two major groups of diploid taxa were found: one cont
This thesis combines corpus-based, experimental and instrumental methods to investigate how professional speakers of English use prosody to signal important textual boundaries above the sentence level. In an initial study, prosodic features included in the transcriptions of the Spoken English Corpus, or readily derivable from these, are investigated. These include minor and major tone-unit length
Artikeln introducerar bokens tematik. Några exempel: I traditionell kristen skapelsetro manifesteras Guds godhet genom ordning, medan kaos, synd och död är uttryck för onda makter. Också vetenskapen uppfattar traditionellt verkligheten som ordnad i betydelsen regelbunden. Aktuella trender i såväl vetenskap som teologi utmanar dessa tolkningar. Kaosteori visar att vår traditionella tolkning av såvä
