In the pulp industry, digesters are used to disolve lignin in wood chips. The concentration of lignin is measured and is called the Kappa number. In this thesis, the question of whether an online Kappa sensor, taking samples from the mid-phase of the digester, is useful or not is analyzed. For the samples to be useful, there has to be a relationship between the measured Kappa at the mid- phase and the measured Kappa in the blowpipe at the bottom of the digester. An ARX model of the lower part of the digester has been estimated.

Large companies in today?s business environment are to a great extent depending on their credit score by rating institutes like Moody?s and Standard & Poor?s. There is however indications that these big institutes are not always rating companies accurately. This is why this thesis aims at developing a new credit rating model, CRITA-Score, with the objective of determining a company?s financial health more accurately.

The aim of this study was to develop a simple model for calculating stock costs for bio fuel at Billerud Karlsborg and subsequently recommending a suitable stock level of bio fuel. The stock components considered in the model are GROT (branches and tops), bark, dry wood chips, raw wood chips from barking and sawdust. The calculations are based on a probability distribution of historical deviations between ordered and delivered volumes. The model presents two different ways to manage the supply in case of irregular deliveries. The first way is to stock enough volume to cover the deviations and the second way is to compensate with a quick purchase from the spot market (at extra high purchase prices).

Nordic Marine Sauna AB has, since 2005, designed, manufactured and sold floating saunas. Theproduct are characterised by a well thought thru and appealing design and its high quality. Thecompany is now intending to open a new business area by starting a subsidiary, NordicSubmarine Sauna AB, which will design submerged saunas. The expected customers are leisureand conference centres as well as customers that seek an experience out of the ordinary.Due to the products technical complexity a master thesis was adverted. The task was to do aninvestigation whether such a product is technically viable.The job involved research of existing products and constructions material as well as designingthe product with CAD and FEM-programs.

This report aims to study the condominium prices in central Stockholm and the factors thataffect these prices. A linear regression model was set up and data about relevant covariatessuch as floor area, mortgage rates and where the condominium is situated were gathered toassess if and how they influence the price. The raw data was processed and enhanced to gain asmuch relevant information as possible to the model. To determine the covariates? influence onthe final price, regressions were ran and various tests were performed on the output data.

This study is about information needs and library habits among newly retired people. The purpose of this master thesis is to examine the affective and cognitive needs that come with retirement. In what way do the information needs of this group change due to retirement? In order to answer this question we make use of two theoretical models; Role theory and Wilson?s model of information needs. When it comes to library habits, we use Andersson and Skot-Hansens model to examine how newly retired people use the library now and how they could use it on basis of their needs in their new role.

Does the country people live in affect the probability of them experiencing happiness? Can a country variable in an ordinal regression model be affected when microeconomic and macroeconomic factors are added to the model? The possible outcomes are either that the country variable affects less when the additional predictors are added to the model, or that they stay the same. The micro data is collected from the European Social Survey database, the macro data is collected from the World Bank. The country variable becomes less substantial when additional variables are added to the model. The variable with the most influence over expected happiness apart from the country variable is whether the individual often socializes with friends or not.

The purpose of this study was to examine how people experience being in debt, what they consider was the reason for being in debt and how they experienced economic counselling. The empirical data was based on five semi-structured interviews with people having experiences from being in debt and experiences of economic counselling. The data was analysed by using theoretical perspectives from a model called economic-shame created by Bengt Starrin. The model shows how being in debt and the feelings of shame influence health. The conclusion shows that the reasons for being in debt often is due to several sudden and tragic events happening at the same time or due to each other.

The aim of this Masters thesis is to examine how Jane Austens Pride and Prejudice, first published in 1813, was established in different literary orbits after the transformation to the television medium in 1995. I also want to find out what this adaptation meant for the popularity of Jane Austen, the circulation of her works and the rebirth of her authorship. It has furthermore been of interest to discuss the reasons why Jane Austen and her works became so popular. Questions posed in the study are: What has the 1995 production of Pride and Prejudice meant for the spreading of Jane Austens literary work and for the rebirth of her authorship? How has Pride and Prejudice moved between the literary orbits after it became a television-serial in 1995? Why did the circulation get the character it got in the 1990s? In order to find feasible answers to these questions I have used Hans Hertels model of the five literary orbits as theoretical starting point.

This paper covers a study of the Swedish charging market for electric vehicles from both the perspective of stakeholders and car owners. By interviewing representatives of four key stakeholders on the market; commercial parkings, malls, service stations and working places, data regarding their business models of today is examined. At present electricity is provided for free, but all stakeholder point out that this business model is not sustainable in the long run. The result of the interviews shows that electricity won?t be offered for free in the future ? the question is which factors affect how long it will take for the different stakeholders to find a suitable business model.

In the 1960?s, Paul Hersey and Ken Blanchard developed a theory called Situational Leadership. Situational Leadership is a model where the leader analyses the needs of the situation and the needs of the people to be led. After analysing the situation, decision is made on what leadership style to adopt. The Situational Leadership model was developed in a company environment.

Ever since it was first introduced in an article in the Journal of Finance 1952, Harry Markowitz? mean - variance model for portfolio selection has become one of the best known models in finance. The model was one of the first in the world to deal with portfolio optimization mathematically and have directly or indirectly inspired the rest of the world to develop new portfolio optimization methods. Although the model is one of the greatest contributions to modern portfolio theory, critics claim that it may have practical difficulties. Partly because the Markowitz model is based on various assumptions which do not necessarily coincide with the reality.

When a helicopter is flying, the dynamics vary depending on, for example, speed and position. Hence, a time-invariant linear model cannot describe its properties under all flight conditions. It is therefore desirable to update the linear helicopter model continuously during the flight. In this thesis, two different recursive estimation methods are presented, LMS (Least Mean Square) and adaptation with a Kalman filter. The main purpose of the system estimation is to get a model which can be used for feedback control.

The purpose of this essay is to compare a theoretical strategic process model with the strategic work in a Swedish bank. The reason of the comparison was to identify which key success factors that is essential in strategic implementation processes. To make this study feasible three qualitative interviews were executed and it also presents data from a quantitative survey performed by the bank. The theory of the study examines eight different parts that needs to be looked at attentively when new strategies are formulated. The results points out that the work at large correspond, nevertheless the theoretical framework points out the importance of the business mission to impregnate the whole strategic process.

This thesis will address a problem concerning availability of information systems at an enterprise within the financial sector and its external suppliers, so called trusted third party. The information system resides on the internal network of the enterprise and must be available to both employees of the enterprise and the trusted third party simultaneously. This contradicts the company policy which disallows third parties access to the internal network. The HAVECA-model introduced in this thesis provides a framework of methods, each solving a sub problem identified in the model. The identified methods are hardening, verification, control and assurance, together supplying a method for continuously securing the internal network against a trusted third party.