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In this thesis the heating area of a belt furnace for annealing metal powder has been modeled. The model was extended with PI-controllers for controlling the energy added to the model. It was simulated with differently tuned controllers to test tuning principles for finding suitable control parameters for the process. The most promising tuning principles was then written as a manual with the aim f
Neonicotinoid insecticides are agonists to nicotinic acetylcholine receptors (nAChRs) in the brains of insects. At sub-lethal doses these chemicals cause behavioral abnormalities in several bee species, reducing overall fitness. nAChRs expressed in the optic lobes of insects bind neonicotinoids, thus may be involved in these behavioral changes. Here we attempted without success to visualize the pr
Tolkning och kvantifiering av strålningseffekter pga. atmosfäriska partiklar är en signifikant del av IPCC’s modellering av hur tidigare klimat förändrats och hur förändringar i framtiden kommer se ut. I den här studien vill vi strukturera och analysera observationer av huvudsakligen svavelpartiklar positionerade i stratosfären från naturliga och möjligtvis mänskliga källor, med hänvisning till va
In the last decades, scholars, managers and consultants have shown increased interest in identifying the characteristics of high-performance organizations. Searching for ways to improve organizational performance and respond to a growing demand for quality products and services in a rapidly changing environment, this subject is of special interest of managers in both public and private organizatio
Dialysis is a life-sustaining treatment for many people around the world. In or- der to meet the high demands on the dialysis machines, replaceable parts must be exchanged in proper time. Condition based maintenance (CBM) bases its service decisions on the actual health status of the component. The goal of this master’s thesis was to develop an algorithm based on machine learning, constituting the
This thesis is about the limiting eigenvalue distribution of n × n Toeplitz matrices as n → ∞. The two classical questions we want to answer are: what is the limit set of the eigenvalues, and what is the limiting distribution of the eigenvalues. Our main result is a new approach to calculate the limit set Λ(b) for a Laurent polynomial b, i.e. for banded Toeplitz matrices. The approach is geometric
The purpose of our study is to gain a better understanding of the influence of remote working on employees’ sense of belonging. A specific interest is shown in the variety of work relationships: those who are normally collocated and those who are normally remote.
This bachelor thesis describes the evaluation of a new software for deconvolution of liquid chromatography diode array detection (LC-DAD). The principal component analysis (PCA) based algorithm, Archimedes, is under development and there are still some issues that need to be resolved. However, the results are encouraging and potentially this algorithm will significantly extend and improve the appl
In 1991 the African Union established a plan for creating a monetary union for the whole continent. The plan, the Abuja Treaty, aim to unify the continent, creating stability and improving economic welfare. Several regional economic communities (RECs) are the foundation of this plan which means that the progress is primary dependent on their successful development. This essay studies Africa’s prog
The Fire Risk Index Method is a tool for assessing fire safety in multi-storey apartment buildings. This report contains a description of how Version 1.2 of the Fire Risk Index Method was developed. The terminology frequently used in the development process of the method is also explained. The use of the Fire Risk Index Method is described and illustrated by an example. The method is applied to an
Recognising the critical role of forests in addressing Climate Change, a proposal being negotiated under the United Nations Framework Convention on Climate Change (UNFCCC) is the “Reducing Emissions from Deforestation and Forest Degradation” mechanism, or REDD+. REDD+ aims to mitigate greenhouse gas emissions by providing economic incentives to developing countries and local forest inhabitants to
