Filtyp
We present a method for the classification of all weak travelling-wave solutions for some dispersive nonlinear wave equations. When applied to the Camassa-Holm or the Degasperis-Procesi equation, the approach shows the existence of not only smooth, peaked and cusped travelling-wave solutions, but also more exotic solutions with fractal-like wave profiles.
The work presented in this thesis focuses on developing methods of measuring moisture properties at high moisture levels. Paper I deal with a new method of measuring moisture diffusivity at high moisture levels. Papers II to IV present methods of measuring moisture storage capacity as well as results from such measurements. Paper V evaluates the use of thermal imaging to measure transient moisture
Recent studies have established that the immune system plays an important role in the development of atherosclerosis. However, its role in regulating the arterial response to mechanical injury is less well studied. Arterial injury is associated with local accumulation of antibodies, and mice lacking functional T and B cells exhibit increased neointima formation, indicating that adaptive immune res
The main purpose of this dissertation is to see how proponents of diaconia justified the establishment of three Swedish diaconal institutions: Diaconissanstalten 1851 (The Institution for Deaconesses, Stockholm, now Ersta diakonissällskap/Ersta Association for Diaconal Work), Stockholms Stadsmission 1853 (The Stockholm City Mission) and Svenska Diakonanstalten 1898 (The Swedish institution for Dea
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This thesis treats analysis and design of piecewise linear control systems. Piecewise linear systems capture many of the most common nonlinearities in engineering systems, and they can also be used for approximation of other nonlinear systems. Several aspects of linear systems with quadratic constraints are generalized to piecewise linear systems with piecewise quadratic constraints. It is shown h
We propose a new kind of two-parameter (p, q)-deformed Heisenberg and parabose algebra, which reduces to the Heisenberg algebra for the p = 1 case and to parabose algebra for q = -1 case. Corresponding to the two-parameter deformed oscillator, we also introduce a new kind of (p, q)-deformed derivative which relates to the ordinary derivative and q-deformed derivative in an explicit manner. We stud
Optical region spectra for a number of upper main sequence chemically peculiar (CP) stars have been observed to study singly and doubly ionized praseodymium and neodymium lines. In order to improve existing atomic data of these elements, laboratory measurements have been carried out with the Lund VUV Fourier Transform Spectrometer (FTS). From these measurements wavelengths and hyperfine structure
Popular Abstract in Swedish Den här avhandlingen innehåller tre uppsatser som analyserar lärande och lagarbete ur olika infallsvinklar. Den första uppsatsen behandlar träningen och rekryteringen av fotbollspelare i de europeiska fotbollsligorna. Innan 1995 fanns ett transfereringssystem som garanterade en övergångssumma mellan det nya och det gamla laget när en spelare bytte klubb. Denna övergångThis thesis consists of three theoretical essays on the acquisition of skills in teams. The first essay deals with the training and recruitment of football players in the European Soccer leagues. Before 1995, the transfer system entitled the ceding football club compensation from the acquiring football club when, on the expiry of his contract, the player in question moved to another club. In 1995,
Study Design. This article describes the development of a musculoskeletal model of the human lumbar spine with focus on back muscles. It includes data from literature in a structured form. Objective. To review the anatomy and biomechanics of the back muscles related to the lumbar spine with relevance for biomechanical modeling. Summary of Background Data. To reduce complexity, muscle units have be
Popular Abstract in Swedish Målsättningen med föreliggande studie är att belysa det komplexa och varierade bruket av skogliga utmarker under järnålder, medeltid och tidig modern tid. Fysiska lämningar från landskapet Värmland i västra Sverige undersöks, med särskilt fokus på lokalsamhällena Dalby och Gunnarskog. De fysiska lämningarna i fokus för denna studie är främst fångstgropar för älg, lågtekThe aim of this study is to illuminate the complex and varied uses of the forested outlands, from the Iron Age, through the Middle Ages, to Early Modern times. Material evidence from the landscape of Värmland, in Western Sweden, will be examined, focusing on the local societies of Dalby and Gunnarskog. Evidence for the reconstruction of outland activities comes from a range of sites, including pit
Background: Selective dorsal rhizotomy (SDR) is an operation method that decreases the degree of spasticity with long-lasting beneficial effects for children with spastic diplegia. Children undergoing SDR are postoperatively in severe pain, a pain related to both the extensive surgical exposure with multilevel laminectomy and the nerve root manipulation. Various pain management strategies for chil
Antibody response to Campylobacter jejuni/coli (CJC) was investigated, using an enzyme-linked immunosorbent assay, ELISA. With a mixture of lipopolysaccharide from two CJC strains as antigen in ELISA, all 24 tested rabbit anti-CJC sera showed high antibody levels. However, only 70% of sera from patients with Campylobacter enteritis demonstrated an antibody response against the combined LPS antigen
In precision hard turning, tool flank wear is one of the major factors contributing to the geometric error and thermal damage in a machined workpiece. Tool wear not only directly reduces the part geometry accuracy but also increases the cutting forces drastically. The change in cutting forces causes instability in the tool motion, and in turn, more inaccuracy. There are demands for reliably monito
We report extensive relativistic multiconfiguration Dirac-Hartree-Fock calculations of oscillator strengths and hyperfine structures for a large number of electric dipole transitions in In II. Results for the 5s(21)S(0)-5s5p P-3(0)o hyperfine induced transition are also presented. Core polarization is accounted for by means of explicit CI. To describe spin-polarization effects configuration state
Abstract Purpose – The purpose of this paper is to examine the way organizational actors argue to obtain a license to operate for new ventures. Design/methodology/approach – The design, which addresses the issue at the industry level, consists of a case study of the ways in which power developers argue for the development of wind energy in Sweden. Findings – The study shows that wind power develop
