Latent heat storage is a way to store thermal energy when a phase change material undergoes a phase change. The advantage of latent heat storage is the capability to store more energy per mass unit than other heat storage methods. The most commonly used phase change in latent heat storage is the transition between solid and liquid. Phase change materials can be divided into organics, inorganics and eutectics.In the Nordic electricity market the price of electricity is set every hour by Nordpool spot, which leads to price fluctuations because of changes in demand. The main goal of this report is to create a latent heat storage system in a single-family home and investigate the possibility to save money by charging the latent heat storage system when the price of electricity is low, and discharge when the price is high.The thermodynamic model consisted of a ?tube-in-tube? heat exchanger with phase change material in the outer tube and water as the heat transfer fluid in the inner tube.

A great number of empirical researches show that hedging is associated with higher firm value, particularly hedging interest rate and exchange rate. However, there is no clear support for value-added risk management hypothesis in the case of producers of commodities. Moreover, according to Shrand and Unal (1997), there are two types of risks, core business risks (or core risk) and homogeneous risks (or non core risks), which are based on a firm's comparative advantages with respects to the source of risk. Firm can earn economic profits for bearing core risks in which it has a comparative information advantage. Firm earn a zero economic rents for bearing non-core risks, where it has no advantage information than its competitors.

Denna uppsats är en kvalitativ fallstudie där vi undersökt ett stadshotell i en mindre stad i Mellansverige. På hotellet har vi identifierat ett problem med latent lojala kunder, det vill säga kunder som är nöjda med sin vistelse och som sprider positiv word-of-mouth men väljer att inte återköpa, med andra ord, kommer kunderna inte att återkomma till hotellet. Studien har genomförts med hjälp av kvalitativa telefonintervjuer, med tolv utvalda latent lojala gäster från hotellet, där syftet var att undersöka samt förklara bakomliggande faktorer till latent lojala kunder. Centralt för lojala kunder är att de upplever ett unikt värde hos en leverantör, som inte andra leverantörer erbjuder. Utifrån fyra valkriterier: tekniska, ekonomiska, sociala och personliga har vi analyserat intervjupersonernas svar i vår empiriska studie.

The survey describes a number of risks that Swedish farming companies are exposed to. The risk areas covered by the survey are currency risks, price risks and financial risks. The survey further describes why these risks have a great impact on the future development of the farming companies. The survey highlights the interrelation between the risks and the measures which can be used to minimize the risks, so-called financial instruments. The aim of the survey is to put focus on above mentioned risks and describe how these risks can be reduced to prevent the Swedish farming industry from stagnating in the future. The survey is a secondary survey whereby existing knowledge about risks and risk management is applied to farming companies. The written information on price risks and hedging is primarily derived from foreign sources.

I denna uppsats presenteras teknik för att automatiskt besvara frågor skrivna i naturligt språk, givet att man har tillgång till en samling tidigare ställda frågor och deras respektive svar.Jag bygger ett prototypsystem som utgår från en databas med epost-konversationer från HP Help Desk. Systemet kombinerar Latent Semantisk Analys med en täthetsbaserad klustringsalgoritm och en enkel klassificeringsalgoritm för att identifiera frekventa svar och besvara nya frågor.De automatgenererade svaren utvärderas automatiskt och resultaten jämförs med de som tidigare presenterats för samma datamängd. Inverkan av olika parametrar studeras också i detalj.Studien visar att detta tillvägagångssätt ger goda resultat, utan att man behöver utföra någon som helst lingvistisk förbearbetning..

The aim of this thesis is to examine how thesauri constructed with latent semantic indexing LSI are performing when used for query expansion. There is a well-known problem with synonymy in information retrieval and one solution to this problem is to use a thesaurus. In this thesis thesauri are created automatically to find statistically related words and not only synonyms. LSI is a method that uses singular value decomposition SVD to reduce dimensions in a matrix and find latent relationships between words. We constructed nine thesauri and used them for query expansion in a Swedish database, GP_HDINF.

The interest for venture capital within the financial sector in Sweden has, according to earlier studies, been seen as a growing occurrence. Especially for what is known as informal venture capital. In modern times, private investors who engage themselves in small, unlisted companies, providing informal venture capital are to be known as business angels. They close equity gaps on the financial market by contribute financial capital to start-ups and are therefore an important participant on today?s market.

The purpose of my study is to investigate whether luck egalitarianism can be savedfrom its inability to draw a line between risks which can reasonably be expected to beavoided, and risk which can not. Such a demarcation is of particular importance forthis influential theory of distributive justice, since it serves to judge whether a personis entitled to compensation for a bad outcome of a taken risk, or not. Testing theintuitiveness and coherence of various contending principles for how to separateavoidable risks from unavoidable ones, I conclude that luck egalitarianism seemsunable to draw a clear line between the two kinds of risks. Instead the theory appearsto be dependent on conceptions of a 'normal life', making it remarkably vague.Furthermore, I argue that luck egalitarianism seems unable to manage without takingsufficientarian and utilitarian concerns into account, for the purpose of decidingwhich risks are avoidable, and which are not..

In 2005 a public housing company in Uppsala, Sweden introduced the service quarter host. The focus on comfort (life quality in American programmes) is similar to the non-tolerance programmes. The idea of non-tolerance derived from the theory of Broken windows. The purpose is to examine how the service works according to the theories of Broken windows and social control. The aim is also to examine if the manifest and the latent functions are the same in different areas.

In 2005 a public housing company in Uppsala, Sweden introduced the service quarter host. The focus on comfort (life quality in American programmes) is similar to the non-tolerance programmes. The idea of non-tolerance derived from the theory of Broken windows. The purpose is to examine how the service works according to the theories of Broken windows and social control. The aim is also to examine if the manifest and the latent functions are the same in different areas.

All companies face risk in their daily business. Internationalised companies tend to experience higher risk due to for example unfamiliar business environment than companies that act only on the national market. Estonia became independent as late as in 1991 and is therefore a new interesting market for many companies in neighbouring countries like Sweden. Risks that are most apparent for an internationalised company are political risk, currency risk, capital and interest rate risk, business risk and credit risk. Our intention of this study was to find out how Swedish companies acting on the Estonian market faced the different risks when entering the Estonian market and how they value the risks today.

The aim of this essay is to investigate how patrons, librarians and indexers use subject headings to describe and index fiction literature. We wanted to know if the groups concentrated on different levels in the text from a semiotic viewpoint, where words either can describe the manifest/connotative meaning or the latent/denotative. To investigate this we had four fiction indexers, four librarians working with fiction for adults and eight library users read and index four short stories. After that we did interviews asking them about how they were thinking when describing the texts, how they use subject headings, about their opinions on indexing and, in the interviews with the librarians and indexers, about their usual work assignments. The subject headings they listed were analysed according to the level they described.

This report contains a risk analysis of transportation of dangerous goods in Kalmar. The analysis is based on quantitative data and an evaluation of the risks based on both the probability of occurring accidents as well as the consequences of those. The risks are presented as both individual and societal risks..

Background: As companies are operating in more globally and complex environments, the need for risk control is accelerating. In an ever-changing environment, companies cannot merely focus on traditional risks, which include financial and insurable risks. To maintain competitiveness, companies need to extend their risk management to include all risks, traditional as well as operational and strategic risks. Purpose: The purpose is to describe and position risk management for Telecom operators, in comparison with the risk management literature, with regards to structure, processes, learning process, visions and benefits. In addition, our aim is to link risk management perspectives with the different strategies for knowledge management.

Places like nightclubs or pubs are frequently visited in order to find partners for love, sex and relationships. This study examins behavioral patterns and trends among young adults in these environments. A computer-based questionnaire has been implemented on entertainment establishments - two studentclubs, one youth club and three nightclubs - in Malmoe and Lund in southern Sweden. The emprical material contains at most 149 answers, and at least 109. Sex, love and relationships are less important than expected, but are still some of few big reasons for visiting nightclubs.