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In this study some microscopic medical images are treated. They are stained with H&E, so they mainly have two colors: pink and purple. The main target is to separate these two colors trying three different algorithms (as any of them is perfect). Pixels in the image have to be separated in two different clusters, so each pixel has to be studied for its classification. This fact makes the comput
This thesis studies the concept of calculation of Value-at-Risk and Ex- pected Shortfall when the choice of model is uncertain. The method used for solving the problem is chosen to be Bayesian Model Averaging, using this method will reduce the model risk by taking several models into ac- count. Monte Carlo methods are used to perform the model averaging and the calculation of the risk measurements
In Sweden the groundwater cycle is by nature at steady state. When using groundwater as a freshwater resource it is common to artificially recharge the aquifer with approximately the same volume as is pumped up by the wells. The recharge to and the outtake from the aquifer effect the landscape of the saturated surface by generating higher peaks and lower valleys. In this thesis the Groundwater flo
A dynamic simulation of the reactor loop of a standard hydrotreater was created in the software Dynsim by Invensys. Using simulations on the same plant from ProII, a steady-state process simulator, for adaption a good level of accuracy at steady state could be achieved and a heatwave simulation could be examined and investigated. The core to have a reliable outcome of the heatwave simulation in te
Exchange rate regimes is an important factor for developing countries´ export performance. There are a wide range of exchange rate regimes, varying from more flexible regimes like free floating to fixed regimes like a peg to another currency. This paper is a contribution to the research on how development countries´ exchange rate regimes affect their export performance. This essay is also a repli
Research in wind power generation technology is a topic of high relevance in the context of renewable energy systems. This project aims to develop and implement an automatic operation and control system for an experimental vertical axis wind turbine (VAWT) located at Lunds Tekniska Högskola, in Sweden. Supervisory control and data acquisition systems (SCADA) are increasingly considered indispensab
The spectrum of a linear, constant coefficient operator $A$ can help us characterize the system $\dot{x}=Ax$ satisfactorily, but in the case of a nonlinear dynamical system such methods are not suitable. In this thesis we discuss the insufficiency of only studying the eigenvalues along the Jacobian of the solution trajectory and discuss possible indicators to better characterize such systems. In
This project was about turning a stool I designed the previous semester, into a series of furniture. The furniture pieces are all easily assembled and disassembled, through a joinery technique inspired by carpentry clamps. In short, the project is about making a well worked through, functional, simple and aesthetic series of furniture, for a home environment.
This thesis is evaluating the pedestrian modelling software Viswalk for the use as a building evacuation model, by verifying and validating the model. In the verification, a procedure from the National Institute of Standards and Technology (NIST) is used as a basis to assess Viswalk’s ability to represent pre-evacuation time, movement and navigation, exit usage, route availability and flow constra
This thesis presents non-invasive spectroscopic studies of wood samples. Wood from both recent samples and archeological samples from the warships Vasa and Riksäpplet are studied. The samples are studied with an optical technique called GASMAS (GAs in Scattering Media Absorption Spectroscopy). The difference in absorption signals with regard to the orientation and number of annual rings in the woo
The use of fusion proteins has become prevalent within biotechnical applications, offering a method of supplementing a protein with physical or chemical properties inherent to multiple full size proteins or peptides. The thesis work presented in this report was designed to attempt such a fusion, between a recombinant human amelogenin and a fungal cellulose binding domain peptide. The extracellular
Do we know enough about Basic Income (BI) to support or discharge it? In this paper, two studies on the subject are reviewed in order to answer this question. One is the pilot study of Unconditional Basic Income in rural India (conducted by SEWA and UNICEF in 2011-2013) and the other is the Bolsa Escola/ Bolsa Familia program that was launched in Brazil in 1995 and is still ongoing. The aim is to
Continuous stirred tank reactors (CSTR) and batch reactors were used to examine the difference in methane yields and process stability between fractionated and non-fractionated sugar beet leaves. The hypothesis of this project was that by reducing the amount of juice in the sugar beet leaves the amount of soluble sugars and other easily fermented compounds in the substrate will also decrease, and
In many application areas in industrial production, industrial robots are utilised for performing various tasks. Frequently a predefined geometric path exists, such that the robot should track this path with its tool centre point. The tracking is often to be performed with certain criteria specified, such as minimisation of time or energy. Accordingly, path tracking problems can often conveniently
This thesis is divided into two parts. The first part analyzes the asynchronous standard and the synchronous servo motor. Different experiments test the two motors differences to where they would fit the best according to application prerequisites. The second part presents the theory for interpolating two asynchronous standard motors, driving two vertically set linear units, connected by two brace
The eagerness among astronomers to gain deeper knowledge and further understanding of the universe around us sets requirements for future telescopes.Images of more distant stars with higher spatial resolution is desired. Extremely Large Telescopes (ELTs) are being developed for this purpose. An example is a European collaboration that is developing an ELT called the Euro50. To obtain the desired r
Today, the most commonly used energy storage device in embedded systems is batteries. But unfortunately, batteries are associated with short lifetime. By introducing Electrochemical Double-Layer Capacitors (EDLCs) as an alternative power source, the lifetime of the backup energy source can be significantly increased. The lifetime is dependent on two predominant factors; temperature and voltage. T
Voice recognition plays an important role in human communication and there is increasing interest in so called ‘earwitness’ testimony in the courtroom. However, research on voice identification or earwitness identification by way of short linguistic as compared to non-linguistic sounds remains in its infancy. To address this issue, the present study set out to examine speaker recognition from shor
A comparison of strategic alliances and mergers & acquisitions and their impact on shareholder value has been done. By using an event study methodology, the announcements of these strategic approaches has been analysed in order to understand which strategic approach affect shareholder value most favourably.
