I rymd- och flygbranschen får ingenting gå fel och därför är kraven på kvalitet och säkerhet enorma. Myndigheterna ställer krav på tillverkarna som i sin tur flödar ner dessa och andra krav genom leverantörskedjan. För att handla med någon av branschens tre stora motortillverkare GE, Rolls- Royce och Pratt & Whitney måste en leverantör vara godkänd av respektive kund. Dessa kvalificerade leverantörer får bara handla av andra leverantörer inom respektive kunds sfär. Valmöjligheterna blir ytterligare begränsade då trenden går mot att motortillverkarna minskar på leverantörsbasen. Volvo Aero är leverantör till både GE, Rolls-Royce och Pratt & Whitney och måste därför handla av respektive kunds godkända leverantörer.

I rymd- och flygbranschen får ingenting gå fel och därför är kraven på kvalitet och säkerhet enorma. Myndigheterna ställer krav på tillverkarna som i sin tur flödar ner dessa och andra krav genom leverantörskedjan. För att handla med någon av branschens tre stora motortillverkare GE, Rolls- Royce och Pratt & Whitney måste en leverantör vara godkänd av respektive kund. Dessa kvalificerade leverantörer får bara handla av andra leverantörer inom respektive kunds sfär. Valmöjligheterna blir ytterligare begränsade då trenden går mot att motortillverkarna minskar på leverantörsbasen.

Detta examensarbete är utfört på Volvo Lastvagnar AB i Göteborg. Där monteras tunga lastbilar för långa och medellånga transporter. Dagens produktionstakt är 104 lastbilar per dag vilket ger en årlig produktion på 19000 fordon. Efter att en lastbil är monterad utförs kontroller för att säkerställa dess säkerhet och funktionalitet. De kontroller som utförs är bland annat drifttest, test av elektronik samt okulärbesiktning.

The aim of this thesis is to develop a new business model for district heating and cooling firms which can contribute to a stabilization of the Swedish national energy system. The business model is developed for a district heating and cooling firm and is exemplified with Fortum Heat. The theoretical investigation around the topic creates a rigid base for following qualitative empirical studies. Osterwalder?s canvas for business model generation is used together with a Casual Loop Diagram to identify a number of business opportunities which stabilizes the national energy system.

Emission of nitrogen oxides as well as carbon monoxides is an inevitable result of combustion. A Swedish law "Law of environmental fee for emissions of nitrogen oxides as a result of energy production" (lagen om miljöavgift på utsläpp av kväveoxider vid energiproduktion (SFS 1990:613)) controls the emission of NOx from energy production by a system of fees. The system has resulted in a strong approach toward less emissions of NOx among the energy production plants. High emission levels, today exceeding 52 mg/MJsupplied fuel, leads to costs for energy production companies. This paper examines possibilities to reduce the emissions of NOx by optimization of the SNCR-technique in a biofuel fired heat and power plant.

The environmental assessment system Miljöbyggnad is a Swedish system initiated by Bygga-Bo-Dialogen to assess buildings with regards to three main areas; ?Energy?, ?Indoor climate? and ?Materials?. A building can obtain three different classifications depending on how well it manages to meet the demands. GOLD is the highest classification and is followed by SILVER and BRONZE. The majority of the measures needed to comply with the demands are done during the design phase.

There are several reasons why organic chicken production is scarce in Sweden. Lack of slow growing (SG) strains combined with higher production costs, lower meat-yield and uncertainty of consumers? willingness to pay seems to be the main reasons. EU-legislations imply use of indigenous slow- or medium growing strains in organic production, nevertheless, fast growing (FG) broilers are often used due to their effectiveness. Increased consumption of processed food creates a market for conventionally rearing of very heavy broilers.

Lean Production is used by many manufacturing companies. Companies in process industries do not use Lean Production to the same extent today. This is part of the report's issue to explore how Lean Production can be applied to a company in the process industries.The investigated company is a processing company that manufactures various types of foil. The company wishes to streamline its production and has therefore asked the authors to examine if Lean Production can offer the company improvements in their production. Lean Production value stream mapping tool has been selected to identify and analyze the current state of two of its products in production.

The demand for environmental assessments on buildings and energy consumption is increasing as well as the energy performance requirements for buildings. At the same time it is increasingly common with self-producers of heat and electricity generation.The main purpose with this master thesis is to investigate how time resolution affects the environmental assessment of energy consumption in office buildings connected to district heating (DH). Environmental assessments were done with both attributional LCA and consequential LCA with system expansion.Fortum´s DH system in Stockholm was analyzed and district heating production was simulated in a Matlab-model. Greenhouse gas (GHG) emissions for the production were calculated. The heat demand of the office Gångaren 16 in Stockholm was simulated in IDA ICE.

Volvo Construction Equipment is a world leading company in construction machinery. Tomaintain the best products, development is prioritized. The master thesis regards sound reductionof the hydraulic system on a wheel loader. The background to the master thesis is asimulation made on the hydraulic system, performed autumn 2005. The result of the simulationshows that the energy of the pressure ripple is reduced when the paralleled hydraulicpumps are phase shifted and reduces each others pump pulsations.

I denna uppsats har vi studerat effekter uppkomna vid införandet av inter- organisatoriska system. Mer precist har vi studerat vilka effekter som uppkommer hos ett storföretags leverantörer vid införandet av Webb-EDI i kombination med självfakturering. Vi har visat att många av de effekter som tidigare forskning hävdar positiva endast är positiva för storföretaget, inte för de många gånger mindre leverantörerna. Ökad tidsåtgång i den administrativa hanteringen och problem med betalningsrutiner är några av de negativa effekter som visat sig uppkomma. Dessa problem kommer på sikt att få betalas av kunden, i detta fall Volvo Personvagnar AB (Volvo PV), i form av högre priser eller sämre service.

Examensarbetet inleddes med en förstudie där olika förbättringsområden inom organisationen identifierades. Kommunikation i praktiken kan liknas vid ett förstärkningsverktyg vilket påverkar de vanligaste faktorerna för ett lyckat förändringsarbete. Idag måste en ledare och chef vara kommunikativ och det fungerar inte längre med att peka med hela handen. Medarbetarna måste förstå sin chef och ledare och det måste finnas ett samspel mellan dem. För att chefer och ledare ska styra förändringsprocessen behövs kommunikation.Syfte med examensarbetet är att undersöka hur kommunikationsprocessen kan användas som styrmedel mot en social förändring.

The aim of this thesis is benchmarking of the program, based on dynamic programming, that earlier was written to imitate the production planning at TSS.This thesis starts with a chapter about the construction of the DP-program, a shorter description of one and each of the program parts and also a list over the in- and output data in each program part. The DP-program consists of six linked MATLAB-files that together produce an optimized production plan for the different planning groups at TSS. The program reads in and reformat the given data and optimize the production of the articles in one group. Finally it compounds all article production plans and give us a production alternative.After running the program with new data the result shows, resembling with previous results, that TSS could be able to make some distinct cost-savings. According to the program, a 50 % decrease of TSS production costs is possible. .

VSEM project and the need for a more efficient way of handling requirements andinformation are highly apparent.The overall objective of this thesis is divided into two parts:1. To identify criteria/factors leading to a successful introduction of an informationmanagement system.2. To develop an implementation process for a requirement management system ?the first step towards a PLM system in EE development at VCC.This will be done through interviews with employees, a literature review and an analysisof studies of three earlier projects within VCC.The conclusion of this study shows the great need for change in work methods fordesigners handling information and requirements. An implementation process has beenidentified with guidelines on how to handle different phases of the process.

The aim of this literature review is to give an overview of the differences between pure- and crossbreeding systems. Crossbreeding is a mating system with individuals of different lines or breeds. It is one of several breeding strategies in dairy production used to increase the economic profit. The use of crossbreeding increases due to changes in the dairy market and an increase of inbreeding among purebred Holstein. The main benefit of crossbreeding is heterosis, which is the improvement in genetic level in a hybrid offspring above the average of the parent breeds.