En jämförelsestudie har genomförts mellan två värmesystem. Analysen har genomförts med ett flerbostadshus som referensfasighet. Fastigheten är lokaliserad i Södertälje kommun. Analysen går ut på att bestämma vilket värmesystem som är fördelaktigt vid renovering av äldre flerbostadshus med avseende på energi och kostnad. De systemen som har behandlats är ett centralt värmesystem med motströmsvärmeväxlare och ett centralt värmesystem med frånluftsvärmepump.Det centrala värmesystemet (Eq aggregat) är ett centralt från- och tilluftssystem med återvinning (FTX system).

The composing of new standards in the area of machinery safety is a continuous work which aims at writing standards that works as a tool for companies and enables them to control if the fundamental demands of security and health which is prescribed by law are reached. It is optional for the companies to choose if they want to use the standards. This report is written in cooperation with SIS and the study were performed within the technical committee SIS/TK 282. The report aims to investigating if the companies that choose to use standards see any economic advantages due to this work, how these advantages take form and where they originate. The main question formulation is how the profitability among companies that have adjusted their production to machinery safety standards are affected. The study was performed with an initial literature study which aimed at obtaining knowledge and an overview over the subject as well as investigate what former studies had resulted in.

The report is part of the university´engineer program within Industrial Organization and Economics with specialization in Logistics and Managment at Jönköping´s university.Skoghall´s mill underlies a large supply chain, which means there should be a lot of areas in need of small improvement measures. This report illustrates a small part of one of these areas and is focused on the loading distribution services in the terminal Vänern.At the moment there´s a very unequal load of the load carriers SECU box and Container at the terminal. Skoghall´s mill has the desire to equalize the high and low load levels of the 2 loading carriers named previously. One of the options to solve the problem is to set a limit of how much the carriers can load per week or per day. The mill also wants it to be investigated if the proposition would influence the customers in any way and if both the company and its customers could handle a lower level of delivery services in case the proposition was to be applied.The goal to be achieved with this thesis is to provide balance to the unequall loading of the 2 load carriers, SECU and Container, and investigate whether or not the Skoghall´s mill´s customers, could manage the lower degree of delivery service that the proposition would imply.For this goal to be achieved, random sample investigations were taken from orders of a customer that is provided with SECU load carriers and the same was made with a Container´s customer.

Due to a constantly increasing competitive pressure it is of great importance to constantly strive for improvements in order to gain competitive advantages. Lean Production is a concept that has been introduced with the aim to minimize waste and increase profitability. The purpose of this report is therefore to investigate how to perform effective planning according to the principles of Lean Production, in companys with customer exclusive products, through a case study at Sandvik Mining and Construction (SMC), and to investigate how SMC kan improve their planning of drifting rods at the production unit in Sandviken.The study started by creating a theoretical framework, to describe the subject planning and planning based on Lean Production. This frame work constituted the base for the case study which took place at Sandvik Mining and Construction, and also for the model and planning tool that has been introduced.The result of the study is partly a general model with factors that contribute to a more effective planning. These factors has beed identifed as SMED, which focuses on reducing set up times and in the end to facilitate the planning.

The prevailing food and energy crisis of the world, due to the declining reserves of fossil energy and a never ending rise of consumption, forces us to look into new fields to supply our energy demand. The boom of bio energy is criticized, as food crops are used to provide biodiesel and ethanol and the volumes are ridiculously small to supply world demand. Algae are one of the world?s oldest life forms and exist in many different phyla, providing a great variety to choose from, for different purposes. Cultivating microalgae offer a way to produce energy at great volumes without competing with food production and at the same time the algae offer a way to use our expensive nutrients in a more efficient way, besides this the algae are carbon dioxide neutral since their carbon source can be supplied by the atmosphere and the additional energy required can be supplied by algal oil or other renewable sources.

The thesis is an examination of the methods that are appropriate and long-term choice to obtain clamping force and secure screw joints in production. The employer, Scania CV AB, transmission manufactures axle gears to all trucks produced in Södertälje. One of the most common assembly elements is screw joints, where the clamping force is essential to achieve a secure joint. Current methods to secure the joint is due much of the friction effect and is an indirect method to measure the clamping force. The clampforce accuracy becomes more widely with torque angle control.

The purpose with this study was to examine six caseworkers and two clients? experiences of interaction in the investigative work of social assistance. Moreover, how the interaction between caseworkers and clients are affected by the structure of the social assistance unit. The study also wanted to show how interaction rituals contribute to the change in assessment procedure in the investigative work. The study even aimed to highlight the ways in which social exclusion occurs in investigative work from caseworkers and client?s capital and gender.

Background: Patients with borderline personality disorder represent a large group in healthcare who are struggling with painful emotions in life. Caring should be based on strengthening health processes by focusing on the patients, but research made by the patient's perspective has shown that this population rather felt that their health processes was counteracted, than promoted. The patients felt that the nurses displayed a negative attitude towards them. Attitudes are defined as a system of values, emotions and actions towards others. Aim: the purpose of this study was to highlight the attitudes and experiences of nurses towards caring for people with borderline personality disorder  Methods: A study on the literature based on nine scientific papers was performed. The articles have been analyzed, systematically coded and compiled into a new unit. Results: This study shows that nurses have an overall negative attitude towards patients with borderline personality disorder.

My master?s thesis is a study of acquisition of photographies during 1958-2008. The questions I proceed from is what patterns lies behind the Royal library's acquisition of photography and how the process of acquisition looks like. The theoretical base which I lean on consists partly of a problematization of the process of cultural heritage and partly of organizational theory. The problematization of the process of cultural heritage is my foundation of this essay.

The prevailing food and energy crisis of the world, due to the declining reserves of fossil energy and a never ending rise of consumption, forces us to look into new fields to supply our energy demand. The boom of bio energy is criticized, as food crops are used to provide biodiesel and ethanol and the volumes are ridiculously small to supply world demand. Algae are one of the world?s oldest life forms and exist in many different phyla, providing a great variety to choose from, for different purposes. Cultivating microalgae offer a way to produce energy at great volumes without competing with food production and at the same time the algae offer a way to use our expensive nutrients in a more efficient way, besides this the algae are carbon dioxide neutral since their carbon source can be supplied by the atmosphere and the additional energy required can be supplied by algal oil or other renewable sources.

During the period 2009-2013, investments in the Swedish national grid increase by a factor of ten compared to previous years. In order to fulfil their mission to manage the national grid in a safe, efficient and environmentally sound way, Svenska Kraftnät (Swedish National Grid) needs to take all these perspectives into account while planning new investments. To compare and relate perspectives of technology, economy and environment the same yard stick must be used. That yard stick is commonly money. A problem arises however as environmental issues are difficult to price.The purpose of this master?s degree project was to develop a tool for evaluation of environmental impact related to investments in the Swedish national grid.

Purpose ? The purpose of this study is to develop a work method to be used by manufacturing companies that are interested in updating which items that should be presented in the materials exposure. To fulfill the purpose an investigation has been conducted to decide which aspects are important to consider and how the aspects can be used to determine which items that should be presented in the materials exposure. Methodology ? To fulfill the purpose of the study, the method has been based on an abductive approach where theory has been layered with empiricism. The main method within this study has been a case study at Volvo Powertrain AB in Skövde with a materials exposure as the analytical unit.

The integration policy in Sweden shall encourage individuals to support themselves and take part in society. It shall alsocontribute to equal rights and opportunities for women as well as for men. In Borlänge this has resulted in a program ofintroduction for new arrivals from other countries. However, at the unit responsible for economic support, they havediscovered that women with immigrant background more often than men seem to have trouble starting or became to anending of the program, which then especially leads women to a long-term dependence for economic support. The purpose of this study has therefore been to investigate what factors affect immigrant women?s participation in theintroduction, and what significance this participation has for their possibilities to become economically self-supporting,and integrated into Swedish society.

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.

The idea for the project emerged when Nilorn wanted to get better control over their supplychain and improve operational efficiency. The company also want to reduce their expenses inthe continuous process of improving profitability. By choosing the right option oftransportation and mode of transport there are large potential savings for the company. Thisenables Nilorn to reduce the transportation costs and strengthen the environmentalresponsibilities by reducing their environmental impact.The flow of goods within Nilorn has over the past years increased significantly and most ofthe gods today is transported by air. The aim of this thesis is to analyse the supply chain of thecompany and evaluate the potential economic savings in this area.