Filtyp
The main focus of this thesis is the analysis of the interactions between antennas and channels where electromagnetic fields play a central role. Our goal has been to devise a general framework to enable a clear separation of the properties of the propagation channel from the influence of the antennas at the same time as it provides a common ground for a joint characterization of their properties.
Current market trends for industrial automation are the need for customizable production, shorter time to market, and powerful global competitive pressure. Based on these trends two challenges have been identified: 1) flexible production systems and 2) integration and utilization of devices and software. Applications from both process automation, manufacturing, and robotics have been considered.
Sweden is a country that traditionally respects the freedom of association and the large number of existing trade unions confirms this statement.On the other hand, however, the Swedish trade union system is structured in a way that eliminates almost every sort of competition between different organizations. In fact, for every sector of the economy there is approximately one union for blue collars
We present multiple-epoch radial-velocity observations for 104 stars in a field of the intermediate-age open cluster IC 4651 to . Only 13 stars (13%) of the full sample are field stars. From the 44 single member stars we find a mean radial velocity of , and the 12 single red-giant members yield a true radial-velocity dispersion of . Of the 19 giant members, 7 (37%) are spectroscopic binaries with
Southernmost Patagonia, located at the relatively narrow passage between Antarctica and South America, is a highly sensitive region for recording meridional and zonal changes in the pattern of oceanic and atmospheric circulation. The island of Isla de los Estados, situated at 54.5 degrees S, 64 degrees W, east of Argentinean Tierra del Fuego, provides an exceptional possibility, to investigate ter
Popular Abstract in Swedish Fasoxidbränsleceller (eng. SOFC) är en keramisk bränslecellstyp som arbetar vid höga temperaturer. Genom att utnyttja energin hos avgaserna från en SOFC i en annan kraftvärmeprocess kan man erhålla ett s.k. hybridsystem som når höga verkningsgrader. Ett koncept som studerats i denna avhandling är en SOFC i kombination med en gasturbincykel (SOFC/GT). Eftersom bränslecelSolid oxide fuel cells (SOFCs) are a ceramic type of fuel cell operating at elevated temperatures. By utilising the thermal energy from the SOFC in a heat engine, a hybrid cycle with high performance can be achieved. One promising concept is a pressurised SOFC in combination with a recuperated gas turbine cycle. The fuel cell, being the more efficient power generator of the two, represents the maj
Popular Abstract in English Psychotropic pharmaceuticals include various groups of chemicals that have been designed to affect neurochemistry in human consumers resulting in changes in cognition, mood, and/or behavior; many target specific receptors and subsequently alter neurotransmitter levels in the central nervous system. The use of pharmaceuticals by consumers results in the release of these Psychotropic pharmaceuticals have been shown to exert a variety of sublethal effects on non-target organisms, even at low concentrations found in the environment (ng/L to µg/L); hence, the aim of my research has been to determine the individual-level effects of psychotropic pharmaceuticals (the selective serotonin reuptake inhibitors sertraline and fluoxetine, and the β-blocker propranolol) on beh
Pheromone communication systems have a reliable signal with a restricted window of amounts and ratios released and perceived. We propose a model based on a Gaussian response profile that allows a quantification of the response peak (location of optimum) and a measure of the peak width (response window). Interpreting the Gaussian curve, fitted by nonlinear regression (NLR), as a standard normal dis
The thesis concerns experimental studies of bubble motion and the transport of large particles and bubbles. Bubbly flows are encountered in many engineering applications where the bubbles play an important role for the mass transfer between the phases, e.g. in stirred reactors. A special case of bubble transport is the cavitation phenomenon, which mainly has a negative effect on the performance of
This report summarizes a survey performed in eight countries on the status quo of daylight and electric lighting control systems. Feedback from more than 100 international experts (building / facility managers and planers) was evaluated. The aim of the survey was to identify the perception of the different possibilities of the current lighting control solutions and the expectations about the contr
Popular Abstract in Swedish Omgivningens temperatur är kanske en av de faktorer som i allra störst utsträckning påverkar djur och deras livsmiljö. Detta bottnar givetvis till stor del i temperaturens effekt på naturen. Betänk till exempel årstidsväxlingarna; att vintern blir till vår, och att hösten (i samband med de första snöfallen) allt mer skrider mot ännu en kall och vit vinter bestäms och reTemperature is a property of profound matter in all aspects of animal life, affecting both individual energy budgets and the environments in which animals reside. Thus, a proper understanding of the effects of temperature variation is instrumental in understanding not only animal form and function, but also the structure and dynamics of wild populations. Accordingly, the aims of this thesis were t
Popular Abstract in Swedish Kärleksdofter och varningsljud i bekämpning av nattfjärilar Jag har studerat hur populationer av skadegörande nattfjärilar kan bekämpas med miljövänliga metoder där djurens egna sinnessystem manipuleras. Liksom många andra insekter kommunicerar nattfjärilar med artspecifika doftsignaler (feromoner) vid parning. Honan avger doften i enstaka nanogram (miljarddels gram!) The impact of olfactory and auditory cues on the mating behaviour in two species of moths, Agrotis segetum (Noctuidae) and Plodia interpunctella (Pyralidae), was investigated to evaluate their potential use in integrated pest management. The flight behaviour of male A. segetum under natural and pheromone-based mating disruption conditions was monitored by harmonic radar. Individual males were equi
Spark ablation is an established method for generating aerosol nanoparticles. By changing the electrodes, synthesis of monometallic, multimetallic and semiconducting nanoparticles has been demonstrated. Apart from using electrodes of specific composition, compositional tuning of bimetallic nanoparticles during synthesis has recently been demonstrated (Kohut, et al., 2021). In many applications, it
IntroductionBeta-lactam antibiotics are essential in the treatment of Gram-negative bloodstream infections. The effect of beta-lactam antibiotics depends on the time of unbound antibiotic concentration above the minimal inhibitory concentration (MIC). An antibiotic concentration above MIC during the whole dosing interval (100% ƒT > MIC) has been suggested as a target for severe infections. The aim
East Prussia was a region populated by people of many different ethnoses, confessions and languages. Initially settled by Germans after the Teutonic Knights had conquered native Pruthenians, it quickly became a melting pot of newcomers from different regions of Europe.East Prussian diversity took a serious hit after the unification of Germany in 1871. The homogenisation policies adopted by the aut
This thesis emanates from the discursive gap between a medical discourse andexperience-driven knowledges in mental health aspects of hormonal contraceptives.The tensions and fractures between a medical discourse focusing on contraceptiveeffectiveness and largely refuting any significant adverse outcomes, and experiencebasednarratives of commonplace detrimental, or at least unwelcome and unpleasant
Spatial decision making is an everyday activity, common to individuals and organizations. However, recently there is an increasing interest in the importance of spatial decision-making systems, as more decision-makers with concerns about sustainability, social, economic, environmental, land use planning, and transportation issues discover the benefits of geographical information. Many spatial deci
Bästa resultat får du om du öppnar den här PDF-portföljen i Acrobat X eller Adobe Reader X eller senare. Hämta Adobe Reader nu! http://www.adobe.com/go/reader_download_se Postadress Box 117, 221 00 Lund Besöksadress Universitetshuset, Paradisgatan 2 Telefon 046-222 70 24, 046-222 00 00, 072-231 71 64 E-post anna.akesson@rektor.lu.se Rektor Föreskrifter om val till universitetskollegiet samt val på
https://www.medarbetarwebben.lu.se/sites/medarbetarwebben.lu.se/files/rs-beslut-170127-170330.pdf - 2025-12-16
Experiences from the Gaia in-flight instrument modellingExperiences from the Gaia in-flight instrument modelling and suggestions for GaiaNIRand suggestions for GaiaNIR Nick Rowell, Michael Davidson, Nigel HamblyNick Rowell, Michael Davidson, Nigel Hambly University of EdinburghUniversity of Edinburgh Lund ObservatoryLund Observatory 2020thth July 2023 July 2023 Experiences from the Gaia in-flight
https://www.astro.lu.se/sites/astro.lu.se/files/2023-07/Session7_Nick_Rowell.pdf - 2025-12-16
Microsoft Word - General study plan_Medical Science, doctoral degree.doc Research Studies Board GENERAL STUDY PLAN FOR DOCTORAL STUDIES IN MEDICAL SCIENCE Scope: 240 credits Qualification: Degree of Doctor Details of approval: Approved by the Research Studies Board on 11 June 2018 Applies from: 1 January 2019 Amended: 10 December 2018 This is a translation of the Swedish version. In the event of a
