In the fluidized bed furnace at Rönnskärsverken, Skelleftehamn, sulphur-containing ore concentrates are roasted in order to remove about 50% of the sulphur in the incoming ore concentrate. This occurs in order to reach the goal of a matte containing 55% of copper in the following smelting process. At the same time as the ore concentrate is partially roasted pollutions as arsenic, antimony and bismuth are expelled. Earlier made thermodynamic calculations of equilibrium suggested that calcium and magnesium form stable compounds with arsenic and thereby inhibit expellation of arsenic in the fluidized bed furnace, an element that is undesired. The purpose of this thesis work was to gain knowledge of the mechanisms behind the formation of these stable arsenic compounds.

An overwhelming majority of all male piglets are castrated without anaesthesia when they are very young. In Sweden this means that approximately one and a half million piglets are castrated every year. The reason the piglets are castrated is the strong and unpleasant smell and taste, the ?boar taint? that the meat from intact boars sometimes exhibits. Boar taint is chiefly cause by androstenone and skatole, two compounds that are mostly produced by sexually mature boars and are accumulated in the subcutaneous fat.

Miljonprogram is a Swedish building program from 1964 to 1975. During that time about a million homes were constructed. Now, almost 50 years later, they are in desperate need of renovation. In order to fulfil the Swedish environmental objective to decrease energy consumption 50 per cent until 2050, considerable housing stock built under the Miljonprogram has to be renovated.Focus in this thesis is on the building services and theirs profitability that can decrease energy consumption in households build during the Miljonprogram. Building construction is not considered in this report.

Ericsson AB in Katrineholm is a part of the Section Business Unit Network in the Ericsson Group. The plant's main task is to produce printed circuit boards in small volumes with a high product mix and focus on delivery and cost effectiveness. At the factory they produce printed circuit boards in the Module department.The Module department has for a long time had a high output of non-approved circuit boards in their production. This has led to a growing stock of non-approved circuit boards on the company?s repair department.The purpose of this thesis is to investigate how Ericsson in Katrineholm can increase the outflow of approved articles in their test process in the Module department.

Food-poisoning is a major health problem and an estimated half a million Swedes are food-poisoned annually, with acute gastroenteritis as a consequence. One of the major causes of contaminated foods is related to food- and waterborne viruses. To be able to trace back the source of contaminant, the method of detecting viruses must be specific and sensitive. No standardized method for detecting foods for sapovirus exists today. The aim of the work described in this bachelor thesis is to implement and opti-mize a real-time RT-PCR method for the detection of all genogroups of human sapovirus in foods.

AbstractThis thesis is the final part of the Innovation and Design Engineering Programme (180 ECTS credits)at the Faculty of Health, Nature and Engineering Science at Karlstad University. The extent of thisthesis is 22.5 ECTS credits and has been performed independently by Hannes Jernberg during thespring of 2013. Metso Paper Karlstad AB is the task maker of this project, and Arvid Johansson is thecompany Representative. Metso Paper Karlstad AB is one of the world leading developer andmanufacturer of tissue paper machines.In the current situation, the company has developed and patented a power management systembased on a Cross Flow Turbine. The current construction is limited to a paper width of 2.9 meters.The company wants to take advantage of all the opportunities provided by the patents, to develop aturbine solution paper machine with a paper width that is wider than 5.5 meters, and give the abilityto manufacture paper for lower energy consumption which is an important part of the production asit is very energy intensive.Problems arise with the increasing length of the turbine, ultimately resulting in that the deflectionbecomes too big and that the momentums, due to the increased torque the turbine blades breaks.By applying the design process, this work has resulted in a number of potential solutions to theproblem.

On the 13th of June 2005 the Minister of Defence, Leni Björklund, was subjected to a formal complaint addressed to the Committee on the Constitution concerning her handling of a specific co-operation project with France. The project concerned the development of a technology demonstrator for an UCAV called Neuron. The reason for the complaint was that the Minister of Defence had failed to present the project to the parliament and thus bypassed a parliamentary decision. Such negligence might be considered unlawful under the Swedish Constitution. The issue became public during an unscheduled meeting with the Committee on Defence, a meeting that was arranged at the request of the Minister of Defence.

Swedish dairy production has during the last decades undergone considerable structural rationalisation and the number of dairy herds has decreased to less than 7000. At the same time the average herd size has increased and a large proportion of those investing in new buildings today choose automatic milking (AM). During 2008 more than ten percent of the Swedish cows will be milked with AM. The development has been faster than expected and the need for consulting has increased rapidly. This study aims to evaluate whether a check list originating from the FRISKKO (?healthy cow?) programme can be a useful tool when assessing how well the herd functions in various areas.

On-site sewage systems are common on the countryside of Sweden with approximately one million on-site systems installed. Due to insufficient function, these contribute significantly to the total discharge of phosphorus to rivers and lakes, causing eutrophication. In order to reduce eutrophication and to fulfil one of the environmental quality objectives, the decision was taken by the Swedish Government in 2005 that 60 % of phosphorous in sewage sludge is to be recycled to arable land before 2015. To make recycling a reality, new solutions have to be found. Federation of Swedish Farmers (LRF) takes an active interest in this issue and has initiated this study. One problem is that the food industry is sceptical towards recirculation due to the risks that products from sewage systems may contain pathogens, heavy metals and unwanted chemical compounds, e.g.

The aim of this study has been to make clear the conception of ?The Garden City?, and also to investigate why and how the garden city has come to be a more frequent and attractive form of settlement in our Swedish community. The essay is supported by a literature study about the garden city from its beginning (1890?s) to present time. To make a distinct explanation of the garden cities progress over time, I have studied the idea behind two garden cities of today, Tullinge and Vistabergs garden city.

This report is of technical character and treats how to plan a small building in Borlänge, Sweden.The technical components that have been treated in the report are the construction, foundation,installations and thermic abilities of the house. In addition to planning this house the report alsocontains a part that deepens in net zero energy buildings. The purpose of the report is toinvestigate if the house in Borlänge can be constructed to meet net zero energy buildingdemands.Energy efficient houses such as passive- and net zero energy houses are showing more frequenton the market in Sweden. Ongoing climate changes and growing consciousness about theenvironment in society have contributed to that the environment is a well discussed topic. Toconsume small amounts of energy and at the same time produce local energy is thereforesomething that lies in the future and future houses.

AbstractTitleOwnership apartments - The success that got lostDate of seminar2011-05-27Course/ProgramBachelor thesis/Construction and Real Estate Business ProgrammeAuthorsAnna ÅbergMarie Louise Homayon NejadMentorSven-Ola CarlssonExaminerGunnar WramsbyBackgroundThe 1st of May 2009 the government introduced a new accommodation form called ownership apartments. The government´s intensions were to give the individuals more influence in their housing, to increase the variety of accommodation and thereby create a freedom of choice when selecting their housing. They also saw opportunities to reduce segregation and increase the total production of houses and or apartments with this new type of ownership. The introduction was supposed to give the building companies a possibility to build with a new type of ownership and thereby create new and an increased number of projects for the future. This new accommodation form has however not gained the penetrating power that was expected.

Sahlgrenska Academyat University of GothenburgDepartment of Internal Medicine and Clinical NutritionAbstractTitle: The relation between alcohol and abdominal obesityAuthor: Anna Eriksson och Karin EdenholmSupervisor: Fredrik BertzExaminer: Ingrid LarssonProgramme: Dietician study programme, 180/240 ECTSType of paper: Examination paper, 15 hpDate: May 30, 2013Background: Abdominal obesity is a part of the metabolic syndrome, which has a worldwideprevalence of 20-25 %. The problem with abdominal obesity is the accumulation of visceraladipose tissue, which is an important risk factor for cardiovascular disease. Alcohol haseffects on metabolism, and can also lead to an increase in total energy intake; these twofactors can lead to an increase in accumulation of visceral fat. Besides this there are studiesthat show that a moderate alcohol intake could be good for your health. The context gets morecomplicated since different studies have shown contradictory results concerning theassociation between alcohol, different types of alcoholic beverages and measurements ofabdominal fat.Objective: The objective of this article review is to assess the evidence of whether alcoholintake is associated with accumulation of visceral adipose tissue, using the measurementswaist circumference (WC) and waist-hip ratio (WHR).Search strategy: The databases used in the literature study were PubMed and Scopus.

Detta examensarbete är utfört på uppdrag av skogsägarföreningen Norra Skogsägarna (Norra) för att undersöka om innehavet av en uppdaterad skogsbruksplan har något samband med hur stor andel av den produktiva skogsarealen där avverkning och skogsvård årligen sker hos enskilda skogsägare i norra Sverige. Analyserna baserades på enkätsvar, data från skogbruksplaner, uppgifter om utförda avverkningar enligt Norra skogsägarnas verksamhetssystem NOVA, samt offentlig statistik från Skogsstyrelsen och data från Riksskogstaxeringen. Examensarbetet söker besvara sju frågeställningar, tre handlar om den skogliga aktiviteten på privata enskilda fastigheter. och fyra syftar till att analysera Norras skogsbruksplaner med avseende på hur väl de följs och hur virkesförrådet förväntas utvecklas. Data analyserades med hjälp av olika t-test där insamlade data jämfördes med data från Skogsstyrelsens offentliga statistik och data från riksskogstaxeringen. Resultaten visar att skogsägare som investerat i en skogsbruksplan (SBP) utför avverkning/skogsvårdsåtgärder på större andel av sin produktiva areal än de som saknar plan. Den åtgärdade andelen ökar från perioden före till perioden efter att skogsbruksplanen tas emot.

During the 21st century, Society has again begun to focus its attention on working class literature and on issues related to social class. In the media contemporary working class literature is often mentioned as a distinct phenomenon. I my view, the meaning of this phenomenon have not been adequately formulated. The aim of this Master?s Thesis is to reconstruct, using a discourse oriented text analysis, a picture of how the contemporary working class literature is described in today?s society.