Med stigande elpriser har det blivit allt viktigare att effektivisera processer som använder sig av elektricitet. Ett område inom pappers- och massaindustrin med stora möjligheter till besparing av elenergi är pumpning. I ett tidigare projekt genomfört av värmeforsk har ett Excelbaserat program för att analysera hela system av pumpar och förbrukare tagits fram. Programmet heter PumpAnalys och med hjälp av detta skall onödigt höga tryck och onödiga strypningar i system gå att visualisera på ett enkelt sätt. Systemet som analyserat är det såkallade sekundärvärmesystemet vid Iggesunds Bruk, vilket har till uppgift att tillvarata värme från terpentin- och tunnlutsflöden. Den största besparingspotentialen har inte bestått i resultat från PumpAnalys utan i de låga verkningsgraderna (28-65%) hos de pumpar som ingår i systemet.

Den snabba generella eltekniska utvecklingen har även satt sina spår i pumpbranschen. Detta har lett till en mängd nya funktioner och med det ett nytt uppförande hos pumparna. Detta har lett till missförstånd mellan användare och pump. Användaren tror till exempel att pumpen är trasig då den egentligen är automatiskt stoppad, vilket får följden att pumpen skickas på service även då den inte är trasig.Syftet med examensarbetet är att utveckla ett HMI med hög användbarhet som ser till att användaren inte missförstår pumpens nya agerande.Genom fältstudier erhölls kunskap om användaren, arbetsmiljön, arbetssättet och utrustningen. Detta lade grunden till hela arbetet.

Den snabba generella eltekniska utvecklingen har även satt sina spår i pumpbranschen. Detta har lett till en mängd nya funktioner och med det ett nytt uppförande hos pumparna. Detta har lett till missförstånd mellan användare och pump. Användaren tror till exempel att pumpen är trasig då den egentligen är automatiskt stoppad, vilket får följden att pumpen skickas på service även då den inte är trasig.Syftet med examensarbetet är att utveckla ett HMI med hög användbarhet som ser till att användaren inte missförstår pumpens nya agerande.Genom fältstudier erhölls kunskap om användaren, arbetsmiljön, arbetssättet och utrustningen. Detta lade grunden till hela arbetet.

Stenvalls Trä äger ett sågverk på Lövholmen i centrala Piteå. De har ett effektbehov på ca 10 MW värme för att torka virke i virkestorkar. Smurfit Kappa Kraftliner är ett integrerat pappers- och massabruk och även Piteås största producent av fjärrvärme. Fjärrvärme produceras främst med sekundärvärme, som är betraktat som spillvärme. Om fjärrvärmebehovet är stort används även primärvärme i form av ånga.

The aim of the study was to investigate whether the phenomenon of internet drugs should be considered as a moral panic or as a real danger. We have mainly focused on how society perceives young people's use of these drugs. The study is based on a qualitative approach and we have used structured interviews. The interviews were conducted with three different categories of professionals who in different ways have contact with parts of our study in their professional capacity. These are: officials, commentators, and researchers.

No summary of feeding recommendations for foals exists today, which is why this subject was chosen for a literature study. The aim of this study was to describe nutrient requirements of healthy full term foals and how the feeding should be designed to raise foals if they lose their mother. Mare milk composition changes during lactation to meet the requirements of the suckling foal. Foals are born with enzymes in their small intestine and the concentrations of these follow the consumption patterns of the foal. Microbes colonizes the gut as the foal becomes older and these changes cause foal diarrhea.

A common way to stabilize high rise buildings is to use an elevator core built of concrete. Today, we use to build these elevator cores of in-situ concrete. Precast concrete twin wall (double wall) is a semi-finished product that has become more common in recent years. This diploma work studies how the twin wall works out as structural elements in an elevator core. The work also shows some possible ways of designing twin walls and highlights some important parts of the design that will be vital to the stability of the building.    The result shows that it is important to think through where the element joints should be placed.

The purpose of this qualitative interview study was to examine which approach experienced pre-school teachers have on children that seek negative attention. The study contains five informants in a city in the middle of Sweden and they all have at least 10 years of experience after their diploma from a pre-school teachers? program. The questions I aimed to answer were the following: How did the pre-school teachers define the expression ?negative attention?? What approach did they have on children that seek negative attention? What effects do the childrens? seeking of negative attention generate on their self-esteem and sense of security? How possible do the pre-school teachers feel it is to achieve the goals of the pre-schools? curricula that every child should get their needs respected and met, when they work with children that seek negative attention? The results showed that the teachers think of them as resources in the group and that they need to think of the environment around these children both at home and at the pre-school to better meet their needs.

Maize for silage has been used as fodder in different parts of the world for a long time and has recently become more common also in Sweden. Our cold climate has been a problem as maize is very sensitive to low temperatures and frost. With new varieties and better techniques for cultivation it is now possible to grow maize in the southern and middle parts of Sweden. As for the north of Sweden the length of the cultivation season is a limiting factor as there are too few days with temperatures of over +10 ºC. Maize is well suited for silage making but oxygen-free conditions are required.

Examensarbetets mål är att beskriva och beräkna Arvidsjaurs och Arjeplogs kommuners framtida bergmaterialbehov med utgångspunkt från bygg- och anläggningsprojekt som pågår och som planeras. Syftet är att få en sammanställning som visar om materialet räcker till eller om det finns behov att öppna nya täkter. Sammanställningen kan med fördel användas av kommunerna som planeringsunderlag beträffande nya vägbyggnadsprojekt. Alla tillståndsgivna täkter i Arvidsjaurs och Arjeplogs kommuner har kartlagts och täkternas kapacitet har också tagits fram. Även alla pågående och planerade vägarbeten kommunvis och årsvis från år 2005 fram till 2009 har karterats.

This essay contains a comparative analysis of Erik Olin Wrights Marxist class analysis and Michael Hardt and Antonio Negris post-Marxist class analysis as presented in their books ?Empire? and ?Multitude: War and democracy in the age of Empire?. I discuss the shift in analytical focus from state level to global level that Hardt and Negri's analysis represent and the ensuing relevance of this for contemporary class analysis. The essay also address the challenge and implications posed to class analysis by the ever increasing economic globalization, from a material production to an ever growing immaterial service economy and the decrease in state power in controlling capital and labor movement. I propose that analytical understanding of class conflict help us to a better understanding of the mechanisms and dynamics that generate social and economical inequalities and that an updated Marxist class analysis still have much to contribute to our understanding to how these issues not only shape our society but also our capacity to counteract them..

The aim of this Master?s thesis is to investigate if the reading habits of teacher students are influenced by merit and descent. The empiric material consists of six questionnaires answered by students at the teacher training with Swedish at the upper secondary school as their first topic. The questionnaire comprised questions about reading habits in the childhood and today and information concerning merits and descent.Pierre Bourdieu?s sociological ideas about cultural capital transmitted from parent to child and the concept of habitus are used as a theoretical framework regarding descent.

This bachelor essay is divided into two parts, the first being a construction of a single-familyhouse and the second an in-depth study of five different isolation materials, analysed from anenergy perspective.The first part, the construction of the single-family house, has been created from knowledgeacquired during three years of studying at KTH Royal institute of Technology in Stockholm, inthe program Architecture and the Built Environment. The constructed house is a one-floorhouse of 137m2with façade plaster, situated in Borlänge, Sweden. The house has a wooden framewhich is built on a on sight cast concrete foundation, on the ground. The house?s roof is a gableroof, which has an angle of 24 degrees.

An increased demand for processed goods on the property market has contributed toinvestments within the Swedish sawmill industry. The purpose with this study is to make amarket investigation of pre cut lengths within a defined geographic area. The constituent forthis investigation is HAL (AB Hilmer Andersson) who invests in a new plane facility and twofinger jointing machines in affiliation to their sawmill in Lässerud, the vest part of Värmland.To investigate the demand of pre cut lengths and identifies the value creating factors and costfactors which the customer within the segments industry and property market perceive, havedifferent customer value theories been used. Theories of customer value and the theory aboutoffering has been the source of creating the qualitative interview with a selection of currentand new potential customers for HAL.The result of the study first gives an introduction of HAL?s new offering and a description ofHAL?s current customers, which gives the reader an understanding of why searching for newcustomers is made in the defined area.

Background: In Sweden, heart transplantation increases as a method of treatment. Patients undergoing heart transplantation require special needs of care. Nurses have to increase knowledge about experiences that these patients percieve to conform the health care in the future. In this study, health science has been used as a theoretical frame of reference which includes a patient perspective.Aim: The aim of this study was to describe experiences among patients, elder than 18 years old, undergoing heart transplantation.Method: The method was a qualitative descriptive study with a context analysis based on ten scientific articles and an autobiography corresponding with the aim of the study.Results: The results of this study showed six themes about experiences that emerged among patients undergoing heart transplantation: feeling of vitality, existential crisis, importance of social support, destructive feelings, capacity of going on and the experience of quality of life.Conclusion: It?s not a guarantee that the quality of life will increase among patients undergoing heart transplantation and they need a specialist trained nurse available to support at all hours..