Syftet med studien var att undersöka den erosiva potentialen av vanligt förekommande kolsyrade vatten med eller utan smaksättning. Studien genomfördes som en laboratoriestudie vid Institutionen för Odontologi vid Göteborgs universitet. Totalt omfattades studien av 34 buteljerade kolsyrade vatten med eller utan smak, tre kolsyrade vatten producerade i kolsyreapparat samt sex referensdrycker. Samtliga produkter testades genom registrering av initialt pH med pH-elektrod och buffring med 0,1 M NaOH till det värde då pH neutraliserats. Dryckens surhetsgrad beräknades därefter vilket anses som ett mått på dess erosiva potential.

This report describes a study aimed at uncovering flaws and finding potential improvements from when the modelling tool EAAT is used in conjunction with the modelling language CySeMoL. The study was performed by developing a framework and applying it on CySeMoL and EAAT in real life context networks.The framework was developed in order to increase the number of flaws uncovered as well as gather potential improvements to both EAAT and CySeMoL. The basis of the framework is a modified version of the Quality in use model from ISO/IEC 25010:2011 standard. Upon the characteristics and sub characteristics of this modified model different values for measuring usability where attached. The purpose of these values is to measure usability from the perspectives of both creating and interpreting models.

Företag blir alltmer multinationella och detta har gjort dem beroende av en mer globaliserad syn på företagsstyrning. Därför fokuserar företag idag på att hitta förmågor och talanger som kan leda under globala förhållanden. Denna studie behandlar ämnet Global Talent Management (GTM), en personalplaneringsprocess som syftar till att skapa en grupp medarbetare med särskild god prestationsförmåga och hög potential, för att vidare utveckla dessa till att förverkliga företagets strategier. Prestationsmätning har använts sedan länge av företag men när det kommer till potential finns svårigheter i att kvantifiera detta då det är något som lätt blir subjektivt. Otydligheten som detta problem ger speglar sig även i hur transparenta företagen är med processerna av GTM i organisationen.Syftet med denna studie blir därför att kartlägga hur svenska företag använder GTM med särskilt fokus på variabeln potential och hur transparenta de är med sitt arbete i organisationen Syftet hoppas infrias genom att studera fyra multinationella företag med rötter inom den svenska servicesektorn.

Vattenfall Heat AB is a district heat provider in Drefviken, but has yet to establish any cooling systems in this area. This thesis examines the potential client base within the area today and over the coming 20 years. The feasibility of the most common cooling technologies is evaluated and results show a total potential for an installed capacity of 30 MW providing 50 GWh of cooling per year. One of the examined areas shows good prospect for heat driven absorption chillers during the summer months when the heat load is limited..

I?ve tried to find the most effective and cost effective way to harvest straw for energy recovery.You can choose between round bales and big square bales. Square bales are the cheapest way to produce straw for fuel recovery because you can optimize the length of the bales so they fit the transportation equipment.In the Malmö area the average days of harvesting hay is 55. The effectively of transportation depends mostly of the speed, the distance and density of the bales. To increase the capacity of bale transportation larger loads and higher density of the bales is necessary.

Acid sulphate soils is a wide spread problem along the northern coast of Sweden. This is causing great damage through low pH and leaching of metals out into the streams. These soils are estimated to be found in several places in Sweden but also in many other areas in the world. One of these areas in Sweden that are believed to contain these sediments is Mälardalen. The purpose of this study is to evaluate the extension of the acid sulphate soils in this area.

How can the object based art help us, as viewers and as makers, to access a supplanted emotional state?One way of positioning yourself within the corpus-field is to step outside the traditional borders of the field and aim for other values within the objects, such as a visible working process, a storytelling or an emotional relationship to the object.  It is a way of taking a step from the traditional silversmithing towards some kind of free undefined corpus-art.  To reach for suppressed feelings is one way to find an importance within the artistic work, to give it a purpose.By investigating the concept of the sublime and the surrealist movement I try to find examples on how you, both as a viewer and as a maker, can put yourself in an emotional/intuitive state.  Through interviews with Jewellery and corpus artists I get a maker?s perspective which I compare with my own reactions to their work.Works of art can be used as a catalyst to reach, and maybe also to process, unattended feelings. This creates a strong emotional connection to the work.  As a maker you can, for example, do this by working with it as a theme, or by using an intuitive working method.

The purpose of this essay is to examine the development of the use of private securitycontractors in Iraq. The reason is that there has been a considerable increase of the number ofprivate security firms operating in Iraq during the last couple of years. The legislation in thefield of private military and security is indistinct and my hypothesis is that the lack of nationaland/or international legislation can be connected to the increased globalization. To come toany conclusions about this I have chosen to make a comparative study between the two casesthe Gulf War and the War in Iraq which started in 2003. In this comparison, I ask thefollowing questions: 1) Are there any signs of anarchy in the field of private security duringthe Gulf War respectively the last War in Iraq? 2) In what way has the use of private securitycontractors changed from Case 1 to Case 2 ?According to my research, there were signs of anarchy in the field of private security bothduring the Gulf War and during the latest war in Iraq.

The purpose of this essay is primarily to investigate the possibility of and the rules concerning using quotas in the field of admission to university. Secondly, an investigation of whether the Swedish Police Academy has been conducting this method during the years of 2009 and 2010 is made. They are currently accused of having discriminated applicants due to their gender and ethnicity. In order to examine the legal arena as far as possible the laws of discrimination, both including the legislations and regulations assumed by the EU as well as the Swedish laws in this field, will be studied. The laws of discrimination will be put in relation to the legal possibilities of making exceptions from the principle of equal treatment.

Different reports imply that the Roma are an excluded group in numerous areas of both Sweden and Europe. Efforts have been done through the centuries without given intentional results. The past 12 years as a Swedish national minority have not diminished the gap between the Roma and the majority society. How does Sweden create and operate its minority policy especially towards the Roma? We have studied international and national minority policy to see how it is described and implemented in the municipality work.

Legionella can be prevented, the question is how. This report is a degree in construction engineering education at Chalmers University in Gothenburg. A comprehensive written publication for Legionella-safe plumbing installations is not available and therefore requested. The purpose of this report is to present preventative measures against Legionella bacteria growth in tap water and in other systems where Legionella bacteria are a potential problem. Technical solutions are presented including how different systems function and what their advantages and disadvantages are.

As competing organizations struggle to become more effective, one field stands out as one of the vital keys to success; internal communication. Even small errors in information handling can end up into obstacles that seem impossible to overcome. Managers constantly need to adjust the internal communication to fit variables that mirror the structure of the organization. This thesis is a study about how and in what magnitude structure affects organization?s internal communication.We have done qualitative interviews with McDonald?s and Diesel, two different global organizations within the branch of service business.

The aim of this two year master thesis is to study the knowledge production within the field of Textile Studies at Uppsala University, with special focus on the use of artifact documentation as a research method. With domain analysis as a theoretical framework, ontological and epistemological assumptions as well as historical and social aspects are studied in relation to the research process. Qualitative research methods are used, including interviews, observations and text analysis. In the analysis of the knowledge processes in the field, perspectives on tacit knowledge and the concept of documents, are used as a theoretical basis. In the field of Textile Studies, the artifacts are used as one of the main objects of study, along with archival and pictorial sources. The main epistemological assumptions are that artifact analysis is dependent on a knowledge base, where technical handicraft skills, contextual knowledge and practical experience of object observation are the most important qualifications.

Det här arbetet är en utvärdering om huruvida det finns problem som kan få en prestandavinst då man använder en Field-Programmable Gate Array (FPGA) som hjälpprocessor till en mikroprocessor i jämförelse men att enbart använda en mikro-processor. För att avgöra detta implementerades algoritmen gaussfiltrering dels på en mikroprocessor med språket C och dels för en FPGA med hårdvarubeskrivningsspråket Very-High-Speed Integrated Circuits Hardware Description Language (VHDL). Simuleringar gjordes för dessa två implementationer och resultatet visade att det var möjligt att få en prestandaökning på 25 gånger för denna speciella algoritm..

Cannibalism can have major influence on fish population dynamics. A prerequisite for cannibalism is that the cannibal and the potential victim meet, and besides density effects, the encounter rate between cannibals and their victims is therefore also largely dependent on habitat use and habitat heterogeneity. In this study I quantified and compared the potential for cannibalism in stream-dwelling European grayling populations in three rivers in Jämtland by means of habitat classifications. I also analyzed population dynamic consequences of varying the potential for cannibalism in terms of intensity, using a physiological structured population model. Findings based on habitat characteristics were that the potential for cannibalism is in general not favourable in these types of streams.