A power system will inevitably be subjected to transient overvoltages, most often produced by switching operations and lightning strikes. These transient overvoltages may harm sensitive equipment without sufficient protection, but it is not an easy task to predict what transients may occur or how they affect the system. A fault occurred in a low voltage system at Forsmark 2012 and overvoltages from lightning were concluded as the probable cause. The three aims with this thesis are to develop and test a model of the power system at Forsmark 3, analyse the transient behaviour of the system when subjected to lightning surges and identify critical parameters, and lastly to provide a tool for investigating the protection of the system. The modelling and simulations were performed in the freely available simulation program LT Spice.

Systemintegration är arbetet med att få IT-system att samarbeta med varandra. Inomsystemintegration finns det idag ett glapp mellan den tekniska dokumentationen och den tekniskalösningen vilket försvårar arbetet med att ta fram och underhålla integrerade system. För att underlättadetta skapades på uppdrag av Ipendo Systems en databasmodell för att kunna lagra tekniskdokumentation om integrationssystem. Lösningen implementerades i Microsoft SQL Server. Underarbetet utvecklades stöd för hämtning av data från integrationsplattformen BizTalk.

This degree project deals with the creation of a business system for Gamersneed Sweden. The system is divided into two parts, one windows appliction and one websolution..

The Göta älv-bridge is a welded steelbridge which is located in Gothenburg,it connects the inner city of Gothenburgwith the island Hisingen. Cracks wasdiscovered in the steel in 1999-2000which started an investigation of thebridge to clearify the condition of thebridge. The conclusion was a monitoringsystem based on laser light sent throughan optical fiber.This report describes the bridge, thedamages, the monitoring system and thetraffic on the bridge.Stefan Pup, at Vectura Borlänge was mysupervisor during this work. In myinvestigation the costs of themonitoring system and the costs ofclosing the bridge is compared andevaluated. The biggest investigatingpart is the costs of closing the bridge.The results of my investigations is thatclosing the Göta älv-bridge would cost 1107 300 SEK / day.

I denna uppsats om visuell kommunikation kommer olika teorier att tas upp, vi har genomfört intervjuer med kunder, gjort observationer i butiker och sammanställt fakta för att ta reda på hur en förbättrad visuell kommunikation av de miljövänliga plaggen kan påverka konsumenter att handla mer miljövänligt. Engelsk titel: Visual communication- sales promotion of eco-friendly garments in storesEngelska nyckelord: Visual communication, Sustainability, Environmental clothing, Consumer behaviorSammanfattning på engelska:.

Denna kandidatuppsats undersöker hur user experience kan främjas i ett adaptivt talbaserat system i en fordonskontext. Att undersöka och involvera user experiencei adaptiva talbaserade system är i synnerhet viktigt i denna kontext då den primära sysslan, att köra, bör störas så lite som möjligt. Ett adaptivt system ger möjlighet att effektivisera interaktion och ett talbaserat system låter föraren fokusera på trafiken.Genom att undersöka existerande teori och utföra empiriska undersökningar i form av användartester genom Wizard of Oz-tekniken och intervjuer har vi skapat designoch dialogexempel. Dessa förslag kan främja user experience och på så vis bidra till att den interaktion som sker är effektiv och behaglig. .

This project investigated the current market regarding wireless net and the communication between the tools used for diagnostics/maintenance and an embedded system. Based on documentation obtained through interviews a demo system was created based on Bluetooth Low Energy (BLE) communication between an embedded system and an Android device.This report intends to describe the tools and methods used in the design of the demo system and the result of an analysis of the BLE communication.Bluetooth Low Energy is an exciting protocol with wide applicability within the industrial field. This project investigated the communicational possibilities between a Smartphone and a Raspberry Pi and based on the results that emerged the conclusion can be drawn that BLE is a protocol with many beneficial applications within industrial IT..

Background: Different forms of reward systems have been more common in Sweden and are used in purpose to motivate employees to work in accordance with a company?s goals. By creating work motivation among the employees, a more congruent situation can appear between them and the managers, and the company can perform better results. Purpose: The purpose with this thesis is to study and analyse a reward system from the employees perspective, regarding it?s affect on work motivation.

The work was carried out on Termisk Systemteknisk?s office in Linköping. The aim was to create a computer system with infrared camera technology for quality control and temperature monitoring of manufacturing processes in industry. The system should be configurable such that it can be used on several different issues, including those where the real-time analysis of camera images is required.The developed system is based on an existing framework, Panola, to deal with measurement results and images in a database. The framework is built for the system continually check for new data , and the task was to create a foundation upon which to build systems that use the framework, but fully or partially utilize direct calls .

Report of diploma work conducted at the Swedish Radiation Safety Authority (SSM) as part of the bachelors program in Nuclear Engineering at Uppsala University.All nuclear power plants in Sweden are obliged to report any deficiency in their barriers or the defense in depth in obedience to SSM?s regulations concerning safety in nuclear facilities. In addition, there is an international system for reporting such events. The purpose of this thesis is to study the Swedish report system and to analyze the differences between Swedish and international event reporting.In the Swedish system, SSM?s regulations are effectuated by means of event reports classified as category 1-3, designed individually at each Swedish facility.

For research purposes Saab has developed a generic mathematical model denoted VEGAS of an aircraft with a configuration similar to JAS 39 Gripen. Today parts of Gripen backup control system are used also for VEGAS making the system subject to both corporate and defense secrecy. The main objective of this master thesis is to design, verify and implement public pitch axis flight control system for VEGAS. Furthermore, simplifications regarding the design process is to be examined. Design of pitch axis flight control system for the entire flight envelope has been carried out.

This project investigated the current market regarding wireless net and the communication between the tools used for diagnostics/maintenance and an embedded system. Based on documentation obtained through interviews a demo system was created based on Bluetooth Low Energy (BLE) communication between an embedded system and an Android device.This report intends to describe the tools and methods used in the design of the demo system and the result of an analysis of the BLE communication.Bluetooth Low Energy is an exciting protocol with wide applicability within the industrial field. This project investigated the communicational possibilities between a Smartphone and a Raspberry Pi and based on the results that emerged the conclusion can be drawn that BLE is a protocol with many beneficial applications within industrial IT..

This thesis has been made in cooperation with Forsheda Stålverktyg AB which develops and manufactures injection moulds and diecasting tools. The main concern has been their Trading-system which provides them with considerable amount of quality lost function.Focus has to however be put on the analysis of the Trading-system due to the fact that this has previously meant various quality issues for the company.This thesis treats quality assurance of the Trading-system, identification of the problems in the process and improvements of these problems.Quality assurance is carried out when a company detects that their quality based costs become too high. Quality based cost are? the costs that would disappear if a company's products and its different operational processes were absolute? (Sörqvist, 2001 p.30, free translation from Swedish). High quality based costs often result in increased quality problems, which can lead to substantial economic loss for the company.This work has resulted in a thorough review of the Trading-system whereupon problems have been identified.

SummaryAt the summer festivals and it?s campsites there are each year thousands of tents left behind. Last year, at the Peace and Love festival in Borlänge, 220 tons of garbage was left behind at the festival area, much of which is tents. 69% of festival goers have at some point left behind a tent on a festival campsite. Many of these tents is purchased very cheaply, for a single festival.

Företag befinner sig i en konkurrenskraftig värld och för att lyckas överleva måste de ta handom sina befintliga kunder såväl som attrahera nya. Med hjälp av dagens teknologi, har företagmöjlighet att lagra information om sina kunder och kan därför få en ökad förståelse förkunders beteende och önskemål. CRM-system (Customer Relationship Management-system)är ett hjälpmedel i detta arbete och har därför blivit en prioriterad investering för företag dåkunder betraktas som dess viktigaste tillgång. CRM-system är en kostsam investering,samtidigt som chansen för att misslyckas vid implementering är stor. Därför är det av stor viktför företag att efter implementeringen kunna hantera, använda och ha förståelse för CRMsystemetsolika funktioner för att lyckas stärka kundrelationer och erhålla tänkta fördelar somsystemet syftar till.Studien tillämpar kvalitativa undersökningstekniker där ett fallföretag har undersökts genomintervjuer.