The aim with the literature study is to inform about the risks that exists in large dairy farms(with focus on mastitis and hoof health) and to inform about the milk industry in Sweden.Personal comments from two study visits (Nötcenter Viken and Vadsbo Mjölk AB) arelinked together with the literature and forms into a discussion regarding sustainableagriculture versus the milk cow's welfare.The profitability for Sweden's milk farmers have decreased because of the decreased milkprice and current inflation. This leads to an increase in herdsize in order to make a profit.The milk cow herds in Sweden becomes fewer year by year and the herdsize increases. Theincreased herdsize can cause a decrease in the time the farmer spends per animal. This canaffect early disease detection and prolong the animals suffering.Swedish Board of Agriculture published (2008) statistics showing that today's milk cow ismedicated primarily because of two reasons; mastitis or hoof problems. Mastitis is thereason to two thirds of all treatments that are carried out.

In 2011, the Swedish National Agency of Education introduced a new national curriculum including the compulsory school and upper secondary school. The new curriculum has been widely discussed by media and in the schools. This essay aims towards investigating how four History teachers in two upper secondary schools have experienced the introduction to the new curriculum, and whether they believe that the new curriculum has affected their teaching practice. The investigation conducted in this essay is based on four semi-structured interviews with four History teachers who work at two upper secondary schools situated in different towns of Sweden. The results of the investigation indicate that the interviewed teachers have experienced the transitional period between different curricula to have worked well even if it has been time demanding and also has increased their work effort.

Together with NCC and Sweco we measured the air-flow on a semi-detached house in Jönköping. When a pressure measurement is made, the house gets exposed to over- and under pressure. This is done in order to examine the houses climate shell. The climate shell of the semi-detached house we tested exceeded the required air thickness in BBR-2002, hence, measures have to be taken.This report also displays the importance of building air thick houses and what consequences a non air-thick house can have for the ones residing the house. A discussion of different measures is on for the addressed problems with the flow-measurement and the alternative construction-solutions.Furthermore we have described in this report of how to account for the performance of the air pressure, what kind of equipment we used and how we came up with the results.

Due to increasing regulations regarding new diesel vehicles particulate matteremissions the new Scania truck, Scania Euro 6, has been equipped with a particulatefilter. This component effectively stores the particles in the exhaust gas but must becleaned in order to prevent itself from clogging. The filter is cleaned through aprocess named regeneration which is a thermodynamic process in which thetemperature of the filter is raised through fuel supplied to the exhaust gas.The purpose of this thesis is to contribute to the development of improved controlstrategies of the temperature during the regeneration process through thedevelopment of model-based controllers. These controllers are designed in order tohave good performance in stationary as well as automatic regeneration.In order to develop these model-based controllers a model of the system isconstructed. The model is described as a linear thermodynamic grey-box model withflow varying parameters, showing good results in validation.The model provides a simulation environment during the controller design, which isfocused around the development of linear regulators with the exhaust gas mass flowas a scheduling variable whose size determines controllers? mode of operation.

The purpose of this study was to highlight cyber-bullying and its place in today?s schools. Our aim was to research how schools with bullying prevention programs are equipped to handle and take action against cyber-bullying. Furthermore this study focuses on whether or not schools are responsible for cases of cyber-bullying. We also aimed to present teachers? general views and knowledge regarding this phenomenon.

Denna rapport beskriver arbetet med utvecklingen av en ny modell för kaplanturbiner. Utvecklingen bygger på två kopplade differentialekvationer som under arbetets gång anpassats och implementerats i turbinmodellen.Modellen beskriver hur vattenflöde och turbinmoment påverkas av avvikelsen från den optimala kombineringskurvan för vinklarna på turbinens ledskena och löphjul, och är anpassad för ett referensaggregat med tillgängliga provdata. Även övriga enheter i vattenkraftaggregatet modelleras och sätts samman med frekvensregulator och elnät för att simulera aggregatets reglerstabilitet i önätsdrift.Verifieringen av turbinmodellen sker genom försök att återskapa de befintliga verkningsgradskurvorna med hjälp av modellen. Resultatet visar en god följning av de verkliga kurvformerna, dock med något lägre maximal verkningsgrad.Verifieringen av önätmodellen sker genom att prova stabiliteten i nätfrekvens och turbineffekt vid stegpålastningar. Resultatet ger en stabilare reglerstabilitet än i verkligheten, men uppfyller ändå förväntningarna på en fungerande modell.This report describes the development of a new kaplan turbine model.

AbstractThe purpose of this study is to see how technology is presented in different fictional picture books that are available in preschool. Six fictional picture books that have connection to technology in picture and text have been analysed. In order to show how technology can be made visible in fictional picture books, the relation between picture and text has been analysed through a technology perspective. Furthermore, the pictures and the texts have been analysed separately in order to show what they show respectively in terms of technology. The fictional picture book has a potential to be a basis for making technology visible in preschool, which is a step in a new direction.

When an organisation is going through a work of change, it is highly important that both management and employees has a healthy communication in order to make everybody feel involved. It is then important to be observant for both the managements and employees thoughts and ideas.This study has been performed on an upper secondary school which is performing a work of change. The change has divided the employees in three different groups. One, which thinks the change have evolved the organisation to something better. The second group of people means that it is preventing individual development of competence.

This thesis is a qualitative study in which 12 award-winning printed adverts, awarded with either a Swedish ?Guldägg? or an international Clio Award, have been analyzed from a rhetorical perspective. Visual rhetorics were used to analyze the adverts in order to expose the rhetorical concepts and to find out whether the rhetorical concepts represented in the Swedish adverts are the same concepts represented in the international adverts. One of the conclusions drawn is that pathos-arguments, a rhetorical concept where the senders allude to the emotions of the receivers, are the most prominent in both Swedish and international adverts, but are used in different ways. Another conclusion drawn is that the adverts are overall characterized by their messages not being explicit.

In order to produce grain in an economically rational manner numerous decisions have to be made. One of these decisions is what tillage system to use. The cost of the tillage system is a large part of the total cost in grain production. Different tillage systems result in different distribution of fixed costs, operating costs and timeliness costs. The price of the produced grain and cost of inputs also affect the best way to produce grain.

Problem: What are the characteristics of Polykemi?s management control system and how is it affected by growth? Purpose: To describe and analyse the management control system of a medium-sized family-owned company from the perspective of Simons? Levers of control. Research design: An abductive, interview-based case study of Polykemi AB. Conclusion: Polykemi?s management control system is primarily a traditional one which is rather strong in terms of Levers of control.

There are several methods avaliable to find areas of interest, but most fail at detecting such areas in cluttered scenes. In this paper two methods will be presented and tested in a qualitative perspective. The first is the darg operator, which is used to detect three dimensional convex or concave objects by calculating the derivative of the argument of the gradient in one direction of four rotated versions. The four versions are thereafter added together in their original orientation. A multi scale version is recommended to avoid the problem that the standard deviation of the Gaussians, combined with the derivatives, controls the scale of the object, which is detected.

This is a study about how realtors or estate agents market their services in social media. Social media is an upcoming channel in marketing and is becoming more important every day. The user generated content on internet is a new way of communication where companies don?t have to be considered as soulless, if companies use it correctly. This study investigates estate agents efforts to market their services in these channels and how they do it.

In connection with that the last few decades have been characterized by major changes where also the rate of change has increased, changes in organizations has become a natural part of today's organizational activities. Every change involves a learning challenge and because of that every change is unique, its output is unclear. However, there is much research that highlights various factors critical to creating an effective change, among others internal communication.The purpose of this study is to investigate whether Engeström's theory can be applied to a completed organizational change and see whether an expansive learning has been promoted in connection with this. This is accomplished through interviews with six employees, all working in one of Sweden's leading property companies. Engeström's theory of expansive learning is applied in order to analyze whether learning is promoted in connection with the organizational change.The result of the study shows that Engeström's theory can be applied to a completed organizational change in order to analyze whether an expansive learning has been promoted in connection with this.

Ocean Thermal Energy Conversion, OTEC, is a sustainable energy conversion technology that is not yet commercialized. OTEC is a technology that utilizes the temperature difference in oceans between the warm surface water and the cold water at 1 000 m depth to run a Rankine Cycle. This technology can produce electricity and provide synergies like fresh water, air conditioning and aquaculture. A simulation program for three alternative OTEC systems has been created in order to decide which OTEC system is most profitable; closed, open or hybrid system. In this simulation a production cost analysis is performed in order to investigate and decide which one of the three systems that has the lowest production cost. The production cost analysis also analyzes if the profitability is affected by the size of the facility. After these analyzes, the most profitable of the three different OTEC-systems is expanded by an installation of solar collectors in order to see if the thermal efficiency is improved. The result shows that the most profitable system varies with the size of the facility.