Filtyp
Uppsatsen undersöker natursyner i några svenskspråkiga emigrationsskrifter från andra hälften av 1800-talet. Fokus ligger på hur det talas om naturen, naturretoriken, och på relationen mellan natur och människa. Fem huvudteman lyfts fram och analyseras: naturen som resurs, den estetiska naturen, den plan(t)erade naturen, naturen som hälsa och sjukdom samt civilisationens bemästrande av naturen.
High-pressure metamorphism and deformation of the Ullared Deformation Zone (UDZ) in the Eastern segment of the Sveconorwegian Orogen, southwest Sweden is evidenced by ~ 970 Ma retro-eclogite found in association with upper amphibolite and high-pressure granulite facies rocks. Petrographic, structural and geochronological studies of the UDZ were carried out to better understand the regional metamor
This report is a master thesis at Lund University. The aim of the study was to investigate how the formation of a pre-recorded fire evacuation message impacts on the initial evacuation process. Four different messages were tested in 15 unannounced evacuation experiments in cinemas and lecture halls. The occupants in the evacuation experiments filled out a questionnaire about the evacuation and the
It is crucial for the insurance business to create risk profiles for their customers to be able set a fair price for their insurances. This thesis presents an alternative method for measuring the dependence between the numbers of claims made by a customer holding two insurances. The group of insurance holders consisted of 74770 unique customers holding at least two insurances during one year. The
This paper investigates the effect of event-boundaries on false memories. The Deese-Roediger-McDermott (DRM) paradigm was used to test the emergence of false memories in 42 Lund University students and an event- boundary was used to see if this reduced the susceptibility to false recall. The subjects viewed an array of 50 words, one at a time, which each was semantically connected to one of five “
I set out to construct a valuation model for paintings using a newly created sample consisting of paintings sold at Impressionist and Modern art auctions at Sotheby’s between the latter half of 2003 until the end of 2006. I create a valuation model using the standard hedonic regression methods used by other researchers in the art market and describe a new way of viewing the dynamics of the art mar
Översiktliga miljötekniska markundersökningar vid förmodade punktkällor görs genom riktad provtagning, med ett begränsat antal provtagningspunkter som egentligen är för litet för att avgränsa en föroreningsutbredning. Men i de fall resultatet av en översiktlig miljöteknisk markundersökning leder till ett beslut om sanering, krävs det ändå att en bedömning av föroreningsutbredningen görs. I den härSmall-scale environmental soil surveys at assumed point sources are done through targeted sampling at a limited number of sampling locations which makes delineation of a contaminated area difficult. However, if a decision of remediation is taken due to the results of a small-scale environmental soil survey, the size of the contaminated area still has to be assessed. In this study I examined the ac
I en tid som präglas av ekonomiska kriser och besparingar väljer allt flera sjukhus att tillämpa Lean Healtcare, en organisationsfilosofi som utlovar ökad effektivitet och kvalitet. Det är troligt att ändringar som görs när en verksamhet övergår till Lean påverkar flera dimensioner i den psykosociala arbetsmiljön. Studier som undersöker vilken effekt Lean har på anställda är dock sällsynta. Syftet
A machine for magnetizing permanent magnets is under development at LTH. The idea of the machine is to affect only small pieces of a magnet at the time to obtain magnets with an arbitrary flux density, of course with respect to the magnetic material. The final machine is supposed to work in a closed loop fashion. Every part of the magnet is magnetized, measured and magnetized again with a flux den
In this thesis a Direct Current Control (DCC) is implemented for controlling a PMSM. The controller should be implemented in an already existing program. This program is used for testing electrical machines. The new testing method is called Dynamic braking, more information about this method can be read in the report "Performance and efficiency evaluation of FPGA controlled IPMSM under dynami
Large quantities and numbers of organic compounds (OCs) from industries and domestic sources enter the wastewater treatment plants (WWTPs) everyday, which is an ever-increasing issue in modern society. In WWTPs, the pollutants are either degraded or emitted to the air, the effluent (water) or the sludge (biosolids). Even though the sludge may contain toxic contaminants and heavy metals, there is a
New technologies developed (new ways of energy generation and consumption) are promoting the introduction of improvements at electricity networks. Currently, European legislation is promoting changes in electricity networks of member states. These changes include new technologies to facilitate the introduction of renewable energy sources to the grid and have a more efficient use of energy. Smart g
Induction machines have been used in a wide range of applications due to its robustness and its low price. These characteristics make the induction machine a suitable option for industrial and home environments especially for those applications where the required speed is constant and the load does not change drastically. As an alternative to the induction machine, the synchronous machine, particu
Militärkuppen i Chile ägde rum den 11 september 1973, därefter flydde många chilenare till Sverige. De bildade en rad föreningar, allt ifrån politiska föreningar till kulturföreningar. Syftet med denna uppsats är att undersöka hur moderna diasporagrupper organiserar sina liv i ett nytt land och i en ny kultur. Den huvudsakliga frågeställningen lyder Hur argumenterar några chilenska medlemmar för b
One of the biggest question in physics is to investigate the early universe or big bang. 10 µs after big bang, there existed a phase of transition called QGP (Quark Gluon Plasma). In this phase of transition quarks and gluon were free from each other. In normal life neutron and proton consist of three quarks with exchanging gluons. To simulate QGP scientists has built the large accelerator at CERN
Introduction: This work aims to evaluate the possibility to transfer electrical power from a metal plate to the steel-cord within a car tire. If the tire stands on the plate, a connecting surface occurs which can be interpreted as a capacitor, where the rubber compound acts as a dielectric. Method: First the impedance of the tire is evaluated: An analytical model is set-up to describe the system;
Inom film och TV branschen har begreppet produktplacering existerat i flera årtionden och har fungerat som en effektiv marknadsföringsmetod för företag som velat göra reklam för sina produkter och tjänster. Syftet med produktplacering är att konsumenter ska uppfatta det kommersiella budskapet utan att vara medvetna om vad de utsätts för. Produktplacering har på senare år blivit alltmer subtil och
Voltage stability is an important issue in electrical power system. As a result, several industrial-grade power system simulator tools are developed in order to estimate the behaviour of the electric power system under certain conditions. Several tests have been developed to compare and to check different simulators and to prove their correct performance. Comparisons between commercial simulation
A small wind power plant connected to the grid has been modeled in Modelica/ Dymola and controlled using external controllers written in C++. The small wind power plant consists of three wind power units with a nominal power of 3kW and one grid connection interconnected with an internal DCgrid. All the controls needed for control and optimization for the operation of the individual parts in the pl
