This report is the written documentation of a project work carried out at the Division of Engineering Materials at Luleå University of Technology in cooperation with Seco Tools AB. The project deals with the analysis of residual stresses in Ti-Al-N thin film grown on WC/Co cutting inserts. The composition of Al varied from 0% up to 75%. Increasing the Al content in the Ti(1-x)Alx N compound improves the compressive residual stresses even after annealing of the material. The experiments have been performed in a high temperature x-ray diffractometer (HTXRD) where the interplanar atomic spacing was determined in-situ and subsequent converted into stresses.

Since the introduction of the European citizenship in the Maastricht treaty, social rights havetaken a back seat to the economic and political elements. Nevertheless, over the past yearssocial issues have been increasingly included on the agenda following the universalrecognition of challenges resulting from further economic integration and demographicchange. The extensive research on European social policy so far tend to focus on initiativesput forward by the European Commission, and offers little to explain the multitude of lines ofreasoning on how far EU social policy should be taken or why it still remains one of the leastdeveloped policy areas. By examining plenary debates in the European Parliament concerningfamily policy, this Bachelor thesis aims to describe the complex of problems connected to afurther development of the social dimension of the European citizenship.The analysis finds that the most imminent problems impeding an expansion of the EU familypolicy lie not only in the many clashes of opinions between advocates of the various existingwelfare models, but also in the conflicts of interests and the different levels of ambitionbetween EU institutions - most notably the Commission and the European Parliament..

This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.

This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.

The aim of this thesis is to describe and analyse the development of libraries on Tjörn, an island on the Swedish west coast. I have divided the thesis in two parts, one in which I will describe the libraries development between the years 1873 to 1952 in the municipality of Stenkyrka and one in which I will describe the libraries development between the years 1976 and 1985 in the municipality of Tjörn. The study is mainly based on written materials and a theoretic model will also be used in which I apply three factors, society, the libraries economy and individual actors on the library activity. The libraries in Stenkyrka during the early period were dependent of public grant from the state for their survival and the libraries were undeveloped. The society around them was poor and hardly any money or assistants came from the municipality.

AbstractThis report intends through a case study to investigate if lightweight concrete isappropriate as main material in the outer wall of a seven storey residential building.A technical design is carried out in accordance with the definitions and requirementsfor passive houses, given by FEBY?s1 ?Demand specification for passive houses?.A literature review is also carried out for a comparison between regular bolt wall andlight weight concrete wall, with a focus on the safety of moisture.The lightweight concrete block used in the report is as a celblock produced by thecompany H+H Sweden AB.The methods used have resulted in compliance with requirements andrecommendations from authorities. Calculations of energy, noise and moisture riskassessment has been carried out.The work has resulted in the conclusion that the lightweight concrete itself is notable to isolate in the extent necessary to obtain chosen U-value of 0,1 W/m2 ° C,without getting to thick. Therefore additional insulation is needed. There are fewrelevant reference objects built with only light weight concrete.

The control of indoor temperature must be able to handle large time constants and both measureable disturbances like outdoor temperature, and non-measurable disturbances, like waste heat from appliances. Due to cheaper microcontrollers (small computers with designated tasks) with better performance, more advanced and computation-demanding methods for control can be used.In this thesis, Generalized Predictive Control (GPC) has been implemented and tested on a theoretically derived model of a house. GPC states that a model of the system is estimated in every sample, and the control is carried out simultaneously, based on predictions of the model. Disturbances like solar radiation can be estimated and used in the control as well. The control signals are determined by quadratic programming, which makes it possible to consider conditions, for example limitations on the control signals.GPC requires a number of parameters to be defined, like model order and control signal penalty, but is relatively robust for variations in them.

Biogas a?r en fo?rnybar energika?lla som kan framsta?llas genom ro?tning av organiskt material som go?dsel eller gro?dor. Trots att lantbruket sta?r fo?r 76 % av den totala biogaspotentialen i Sverige producerades endast en procent av biogasen 2008 i ga?rdsanla?ggningar. Uppsatsens syfte a?r att ge en o?versikt o?ver vad som orsakar den la?ngsamma utvecklingen av sma?skalig biogas, samt att ge fo?rslag till lo?sningar som kan leda till en snabbare expansion.

Glass has sophisticated front properties and are used as facades in high buildings. During cold periods, these glass facades could cause thermal discomfort, due to cold downdraught. Cold downdraught can be countered by placing heaters under glass surfaces. Nowadays technology offers highly insulating windows, which is why there is an interest to investigate the indoor climate with only underfloor heating. The research in this area is limited, and few empirical methods are available.

Titel: Verksamhetssystemet - Processkartläggning och strategiimplemente-ring i mindre till medelstora företag Författare: Carl-Fredrik Bredberg Anna Daun Wester Christina Hansson Handledare: Everth Larsson, Institutionen för Teknisk Logistik Carl-Henric Nilsson, Företagsekonomiska Institutionen Problemformulering: Problemformuleringen är uppdelad i tre fokusområden som löper genom hela examensarbetet. Fokusområde 1 ? Utveckling av Verksamhetssystemet. För att säker-ställa att alla i företaget arbetar på ett samordnat sätt och levererar med samma höga kvalitet, även om företaget expanderar ytterligare, vill fö-retaget införa en ny form av struktur och styrning. Fallföretaget vill skapa ett interaktivt, webbaserat verktyg som baseras på företagets processer.

This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.

This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.

This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.

The health care is an important part of the welfare services in Sweden. Therefore it is of large interest that it is well performing. A part of this is related to how the health care is organized. This essay examines how the Swedish health care has been organized between 1960 and 1990 and what organizational changes that have been made to the health care. It shows that the Swedish health care has un-dergone many organizational changes the last decades.

Detta examensarbete har utförts på Sapa Heat Transfer i Finspång och har tagit upp frågan med hur den interna hanteringen av produkterna kan orsaka defekter. I arbetet har en typ av defekt undersökts särskilt och denna defekt kan ses som ett exempel. Företaget tillverkar aluminiumband till värmeväxlare, främst till fordonsindustrin. Banden levereras på rullar med en diameter upp till 1700 mm, och en bredd mellan 12 mm och 1440 mm. Syftet med detta examensarbete är undersöka en defekt som är orsakad av den interna hanteringen, det vill säga det som sker mellan produktionsstegen.