In this bachelor thesis, diagnostic methods for one of Siemens stem inlet control valves have been developed. The work has taken place during ten weeks at Siemens Industrial Turbomachinery AB in Finspång. The company produce steam- and gas turbines and also provides service and maintenance. The purpose with this project has been to develop diagnostic methods that oversee the health of the control valves. By using the developed methods you will know when it?s time for maintenance.

Warmer climate is a driving factor to species expansion northwards. Expansion to new areas can result in escape from natural enemies, resulting in reduced levels of mortality and thereby potentially increasing the rate of expansion. The most important parasitoid species attacking butterfly larvae belong to the families Tachinidae, Ichneumonidae and Braconidae. The aim of this thesis was to investigate parasitism and difference between populations in established area and newly colonized area for the European map butterfly, Araschnia levana, in order to examine if the butterfly has escaped from some natural enemies. In 1982 the first European map butterfly was observed in Sweden and has now established up to middle Småland.

In this report you can get a complete instruction about how to build your own development system for the PIC-processor. This card will be used for laborations for the students at LITH-ITN. With this card you can send new assembler codes (new instructions) down to the microprocessor via the Serialport on your computer. Then the new instructions for the microprocessor will start to execute. We made a solder paste stencil at Campus Norrköping solder paste stencil laboratory.

This study investigated the possibility of implementing three standards, Transistion Minimized Differential Signaling (TMDS) and two versions of Stub Series Terminated Logic (SSTL), for inter-chip communication in a specific manufacturing process. The two SSTL standards were implemented in one transceiver system while TMDS was implemented in a separate system. The evaluation was done with Spice simulations on schematic level with some parasitic capacitance and resistance. The idea was to investigate the possibility of implementing these standards and get an idea of eventual shortcomings. In order to create models as a basis for evaluation, simulation environments with models for circuit board and packages were created and transmitters and receivers were designed.

The present thesis is about how preschool children develop their language skills. The purpose is also to discuss how library and preschool can collaborate and in different ways together help the children to achieve different skills and to use their first and second language in a more appropriate way. The main problem identified from literature and own observations is why library and preschool dont collaborate to help young children to develop their language skills? Which reasons are behind a lacking collaboration? What can be done to increase collaboration between the library and the preschool? How can librarians and preschool teachers use their different professional skills in the best manner to be able to help the children to develop their skills in language acquisition? Is it possible to measure childrens language skills and how can one decide what characterizes a good collaboration? We started with a literature review and continued with collecting qualitative data by means of interviews with people who worked as librarians and preschool teachers, who were supposed to collaborate in a language oriented project. We have chosen different language theories by well-known scientists and we have only picked a few of them, which we considered relevant for the chosen topic.

The purpose of my essay has been to illustrate any possible differences between pre-school teachers? and parents' views on the mission of the pre-school put in relation to the pre-school curriculum. In my study I have taken a starting point in the following questions:How do pre-school teachers understand the mission of the pre-school?Do pre-school teachers recognize the term baby-sitting from their profession?How do pre-school teachers perceive the parents' view on the mission of the pre-school?How concerned are the parents according to the pre-school teachers about the pedagogical activities of the pre-school?What do the pre-school teachers do to inform the parents about the pre-school curriculum and how aware do they think that the parents are of the curriculum?What are the plans of the pre-schools to fulfill the new part of the revised curriculum that comes into effect July 1 2011?I chose to utilize the qualitative method with the hermeneutics as a theoretical framework in my study and through interviews study my questions. The interviews were made with four pre-school teachers from different pre-schools in the south of Stockholm.

The purpose with this essay is to study how students in elementary school are placed within the subject called ?svenska som andrasspråk?, or SVA. SVA is a subject specially designed to deal with the complications that students with a different native language encounter when trying to learn Swedish.  National school documents state that a student is to be offered SVA if he or she has a different native language than Swedish and if the headmaster decides it?s ?needed?. In this work I focus on the different factors which are involved in the headmasters decision whether a student should be in a SVA-class or a normal Swedish class.

Purpose: The aim of this study was to observe and describe the work environment of veterinary nurses, focused on fysical ergonomics, in a Small Animal hospital. Method: An observational study was made in the stationary ward in an animal hospital. The observation was based on a checklist from the Swedish Work Environment Authority. Six veterinary nurses was observed over three hours when they nursed the patients. The checklist contained paragraphs concerning work postures, manuell work, knowledge, competence and the design of the workplace. Result: The results was divided into three categories; red, yellow and green.

The objective of this study was investigating social worker?s perspective of how alcohol consumption can affect, and what elements in the social environment that may be of significance for, alcohol consumption and development of identity. The questions at issue were: Do social workers experience any positive effects from alcohol consumption in 16-17 year-old girls with problematic alcohol consumption and what influence do the effects have on self esteem, self image and development of identity? What do social workers experience are the negative effects from alcohol consumption on self esteem, self image and development of identity? How important do social workers find the social environment and how do they believe the social environment affect the alcohol consumption and development of identity? This was investigated with a qualitative approach from a social worker?s perspective, hence social workers were interviewed. The study?s theoretical basis was Symbolic Interactionism and Erikson?s theory of Psychosocial Development.

The idea to develop  a platform for a PID-controller came from the need to control the temperature in  an espresso machine in a more exact way than a thermostat could perform. In discussions with Syntronic AB the idea developed into PID-control for industrial use. Syntronic AB suggested that the platform should be based on a commercially available processor module to shorten the development time. The suggestion included the use of the microcomputer Raspberry Pi, which supports USB, HDMI, memory card and Ethernet.The work began with establishing a schedule for the 10 weeks of the projects duration, and after that a system specification listing all functions, implementation and limitations was made. When the foundation of the system specification was done, a preliminary system design took shape.Because of the Raspberry Pi´s lack of Analog-to-Digital converter, a circuit board containing Wheatstone bridges, differential amplifiers and a two channel Analog-to-Digital converter was fabricated.

The purpose of this paper was to examine the inflation hedging capabilities of property shares. A common notion is that property is a good hedge against inflation. Indeed, positive correlations have been found for direct investments and inflation. However, property shares are generally perceived as a perverse inflation hedge. This discrepancy has often been quoted as evidence of property shares divergence from the development of the underlying property market.

AbstractSwedish tuition for immigrants (SFI) is a public adult education program in Sweden that was created in order to provide the immigrants with basic skills in Swedish. People with different backgrounds speaking different languages learn together how they should communicate in Swedish, both orally and in writing. For those who teach SFI it is important to know which factors have positive effects on the Swedish language acquisition. One of the questions to be asked is if the learning materials´ genre has any effect on the SFI students´ proficiency, in particular, oral proficiency. Scientists as von Franz, Vygotskiy and Bettelheim argued that fairy tales, as a genre consciously or subconsciously recognizable by all the people, present texts that are easy to acqiure.

Den här uppsatsen syftar till att göra en kartläggning av den svenska novellgenren för att konkretisera den så kallade novellboomen som uppstod under 1990-talets mitt och dess anledningar. Vidare undersöks den amerikanske författaren Raymond Carvers betydelse för novellboomen, för att konkretisera och utreda om det finns någon substans i påståendet om hans påverkan på den svenska novellistiken, eller om det istället handlar om en kritikerbaserad genretillskrivning. Detta resonemang förs utifrån de berörda författarna, vissa litteraturkritiker och några bokförlags ståndpunkter i frågan. För att kunna se om hypotesen stämmer eller inte har en modell eller ett mönster med de mest generella dragen för Raymond Carvers novellistik sammanställts. Dessa generella mönster har sedan jämförts med fyra novellister som debuterade under ovan nämnda period, för att se vilka likheter dessa texter och novellister uppvisar med Carvers karakteristiska drag.

In today´s labour market, men and women are segregated, both vertically and horizontally. Exceptions to the rule of gender segregation are few. There is, however, one managerial group where women and men are equal in numbers: school principals. In a short period of time, the distribution in terms of sex among principals in Sweden has changed dramatically. How does gender equality in numbers affect gender equality in a qualitative sense? That is the focus of this thesis.

The project was performed at SiemensIndustry Drive Technologies with theobjective to provide actual values forthe energy savings potential withinSiemens scope of practice.In Sweden the electrical drives standfor about 30 % of the total electricityconsumption and about 60 % of theelectricity consumption within theindustry. During the pre-study phaseelectrical drives with pump applicationswere identified as large energy users.Because of this a case study at one ofSiemens customers, Stora Enso Fors wasperformed. The system that was evaluatedduring the case study was a throttledsystem with a centrifugal pump forpumping pulp.The results yielded that a saving ofover 50 % could be achieved by replacingthe throttle valve with a variable speeddrive, a frequency converter. Thepayback period was two years and twomonths and the present value for thetotal life cycle cost of the variablespeed system was 662.566 SEK lower thanfor the throttled system. As aconsequence, Stora Enso Fors is advisedto invest in a frequency converter forregulation of the system.The general conclusion is that a focuson system efficiency is the mostimportant factor in energy efficiencyprojects and that the system regulationmethod has a large impact on the overallsystem losses and hence its efficiency.Energy efficiency potential forthrottled systems with centrifugal pumpsis large and significant economicalsavings can be made through investmentswith short payback time..