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Numerical models of the optical properties of a single nanowire are essential for reproducing the results of the measurements and understanding the optical processes. Intuitively, the properties of a single finitely long nanowire would converge to the ones for an infinitely long nanowire if it is long enough. However, the simulations show that the scattering cross section per unit length of a fini
Liquid hydrogen is an attractive alternative to fossil fuels in the aviation industry, but storing it both before and during flights introduces many challenges pertaining to the cryogenic liquid conditions required. Having reliable models to predict the dynamical behavior inside the storage tank is therefore of great interest. This thesis covers the development of a low-dimensional model for a l
Financial Repression is increasingly recognized as a viable approach to address high and unsustainable debt levels. Despite its history dating back to the early-mid 1900s, the economic implications of Financial Repression have yet to be fully explored. This paper investigates the effects of Financial Repression, specifically the relationship between two key economic indicators: the exchange rate a
Värmeväxlare är system som ofta används i många olika tillämpningsområden så som kylning, uppvärmning, ventilation eller andra områden där man strävar efter att maximera värmeutbytet mellan fluider. Vanliga tillverkningsmetoder för värmeväxlare inkluderar hydraulisk pressning av värmeöverförande plattor, eller att på andra sätt skapa värmeöverförande ytor av rör, korrugerad plåt eller liknade mateHeat exchangers are systems commonly used in many different applications such as cooling, heating, ventilation, and other areas where maximizing the heat transfer between fluids is desirable. Common manufacturing techniques of heat exchangers include hydraulic pressing of heat-transferring plates, or otherwise creating a heat-transferring area of pipes, corrugated sheet metal, or similar materials
Fat-filled milk powders are manufactured by blending skim milk powder with vegetable oil and these powders have gained a great economic importance. Sensible selection of vegetable oil can help in satisfying both nutritional features and functional characteristics of fat for dairy application. The stability of milk powders can be affected by its composition, mainly the composition of fats which can
Acoustophoresis has proven to be a promising technique when it comes to separation of particles or cells in a microchip. One of the main areas of interest is the separation of so called circulating tumor cells (CTCs) from whole blood - which could serve as an indication of early stage cancer or in general be studied in order to obtain more information about these cells. However, one issue with th
This master thesis consists of two parts, which both deal with NMR studies of the carbohydrate-binding domain of the protein galectin-3 (Gal3C). In the first part, 19F relaxation of two difluorinated diastereomeric ligands bound to Gal3C was analyzed with the model-free approach to extract information about the dynamics. The second part reports the assignments of the backbone amide 1H/15N resonanc
This master thesis consists of two parts, which both deal with NMR studies of the carbohydrate-binding domain of the protein galectin-3 (Gal3C). In the first part, 19F relaxation of two difluorinated diastereomeric ligands bound to Gal3C was analyzed with the model-free approach to extract information about the dynamics. The second part reports the assignments of the backbone amide 1H/15N resonanc
Wide band gap semiconductors such as gallium nitride (GaN) are attractive candidates for short wavelength optoelectronic devices and high-power/high-temperature electronics. Widespread commercial adoption has been hindered by great difficulties encountered in obtaining high-quality materials. No suitable substrate material is available, making lattice matching unattainable and resulting in high th
I examensarbetet gjordes fyra variationer av en modell med målet att simulera torkningen av bark. Alla fyra variationerna jämfördes med experimentella data från en pilotanläggning och värme- och massöverföringskoefficienten kalibrerades mot experimentella data. De fyra modellvariationerna är: • Adiabatisk mättningsmodell • Värme och massöverföringskoefficientsmodell • Isotermmodell • FraktionsmodeDuring this master thesis four variation of a model were created with the goal to simulate the drying process of bark. All four variations were compared with experimental data from a pilot plant and heat and mass transfer coefficient were calibrated against the experimental data. The four model variations are: • Adiabatic saturation model • Heat and mass transfer coefficient model • Isotherm model
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
