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The environmental debate is more intensive than ever before and the demands on companies increase. There are a number of methods to make it easier for the companies to fulfil the demands. Life Cycle Assessment (LCA) end ecodesign are some of the methods that can be used.   Syntronic AB has the possibility to reduce the products´ environmental impact in the design phase. Therefore it is important for the company to make it possible to visualize the negative environmental impacts a product can cause in an easy way. It is also important to visualize for there clients if any improvement is possible.   The purpose of this thesis is to develop a simplified model. The purpose of the model is to illustrate the environmental impact in the design phase of the product. To develop the model we have used previous research about environmental impact, legislation and methods. With that as a base we have develop a simplified model which Syntronic AB can use in their communication with their clients.   The model is built up so that different parameters can be used. That means that the model can be applied so it makes it possible to compare compatible material and components to already existing materials and components.   The problem in doing a LCA is to get data that is up to date and trustworthy. It limits the models trustworthiness if you are forced to use stencil data. Therefore the result that the model generates should be considered as an image to used in decision making when the company communicates environmental adapt in product development.

To create a profitable and competitive business an important factor today is a well-functioning logistics. Through effective internal material flows effective logistics can be achieved. Unnecessary handling and movement of materials is a waste which affects the internal material flow. These wastes should be identified and eliminated as much as possible to improve the internal materials handling and through that achieve a more efficient business. At Fagerhults Belysning AB, where professional lighting systems are developed, manufactured and marketed, a new inventory has been built and changes in the assembly has been made during the past year. The impact of this is that the internal handlings of the materials is probably not the most effective. The purpose of this study is to improve the internal materials handling between inventory and assembly, by reducing unnecessary handling and movement of materials. To achieve the purpose, the current handlings of the materials between inventory and assembly has been identified, through observations and interviews at Fagerhults Belysning AB. The description of the current situation shows that both the new inventory (NF) and the old inventory (GF) are used to store components, whereof the old inventory is located downstairs. Since NF is located on the same floor as the assembly, the best had been to place all the components there, but when space is limited, GF also has to be exploited. In connection with the description of the current situation, literature studies have also been done, which together form the base of the analysis of the current situation. The analysis of the current situation includes suggestions for potential improvements, as well as their impact on the company. In the analysis chapter the authors have chosen to focus on which components that should be prioritized for location in NF, as this was considered as an important part in reducing the number of movements to and pallets on the storage area, in order to improve the materials handling. To determine which components that should be prioritized for location in NF, the authors have chosen to use the ABC-analysis based on the order frequency to the assembly. The analysis was only made on one product family since the project has a tight time limit. To perform the analysis on the entire product range, and by that avoiding sub-optimization, a tool is evolved to the company for future analysis.Finally, a discussion of the results and the method are conducted by the authors. The authors believe that the tool is helpful when performing an ABC-analysis in order to finally determine which components that should be prioritized for location in NF. However, there are more factors to consider in order to apply the tool in full, for instance fill rate in NF, purchase quantity etc. / För att skapa en lönsam och konkurrenskraftig verksamhet är en väl fungerande logistik en viktig faktor. Genom effektiva interna materialflöden kan effektiv logistik åstadkommas. Onödig hantering och förflyttning av material är slöseri som påverkar det interna materialflödet. Dessa slöserier bör identifieras och elimineras så långt det går för att förbättra den interna materialhanteringen och genom det åstadkomma en effektivare verksamhet.På Fagerhults Belysning AB, där professionella belysningssystem utvecklas, tillverkas samt marknadsförs, har ett nytt förråd under det senaste året byggts samt förändringar i monteringsupplägget gjorts. Detta har medfört att den interna materialhanteringen sannolikt inte är den mest effektiva. Syftet med examensarbetet är att förbättra den interna materialhanteringen mellan förråd och montering, genom att minska onödig hantering och förflyttning av material.För att uppnå syftet har den nuvarande materialhanteringen mellan förråd och montering kartlagts genom observationer och intervjuer på Fagerhults Belysning AB. I nulägesbeskrivningen framkommer det att både det nya förrådet (NF) och det gamla förrådet (GF) utnyttjas för att lagra komponenter, varav det gamla förrådet är beläget på nedre våningen. Eftersom NF ligger på samma våning som monteringen hade det bästa varit att placera samtliga komponenter där, men då platsbrist råder måste även GF utnyttjas. I samband med att nulägesbeskrivningen genomförts har även litteraturstudier gjorts, vilka tillsammans ligger till grund för nulägesanalysen.Nulägesanalysen innefattar förslag på potentiella förbättringar, samt dess påverkan på företaget. I analyskapitlet har författarna valt att fokusera på vilka komponenter som bör prioriteras för placering i NF, då detta ansågs vara viktigt för att minska antalet transporter till, samt antalet pallar på, materialtorget och på så sätt förbättra materialhanteringen. För att avgöra vilka komponenter som bör prioriteras för placering i NF har ABC-analys baserat på orderfrekvens till montering valts att användas. Analysen har endast gjorts på en produktfamilj för att projektet inte ska bli för omfattande i förhållande till den tidsbegränsning som finns. För att kunna utföra analysen på hela produktsortimentet, och därmed undvika suboptimering, har ett verktyg utvecklats till företaget för framtida analyser.Avslutningsvis har en diskussion förts av resultatet och den metod som använts. Det verktyg som skapats anses av författarna vara ett bra hjälpmedel vid genomförandet av ABC-analysen för att slutligen kunna avgöra vilka komponenter som bör prioriteras för placering i NF. Dock finns det fler faktorer att ta hänsyn till för att kunna tillämpa verktyget fullt ut så som fyllnadsgrad i NF, inköpskvantiteter etc.

In this thesis the connections between the boundary conditions and the vari- ance of the solution to a stochastic partial differential equation (PDE) are investigated. In particular a hyperbolical system of PDE’s with stochastic initial and boundary data are considered. The problem is shown to be well- posed on a class of boundary conditions through the energy method. Stability is shown by using summation-by-part operators coupled with simultaneous- approximation-terms. By using the energy estimates, the relative variance of the solutions for different boundary conditions are analyzed. It is concluded that some types of boundary conditions yields a lower variance than others. This is verified by numerical computations.

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