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6494 Uppsatser om Large technical systems (LTS) - Sida 54 av 433

Vägen mot flexibilitet : En studie av Sex Sigma och lean production inom industrin

This paper is about the new methods and metrics used in industry and business today striving for better revenues and larger market shares. It investigates the relations between the old fordistic and tayloristic way of manufacturing and compares it to the models used in industry today for being competitive, seeking to please customers and becoming more flexible. More specific the paper is about if Six Sigma and lean production are the key for succeeding these days. SKF:s factory in Gothenburg and other companies will make an example for how these methods are used in practice.The aim is to try to answer if these systems with inherited tools and methods are the right way to get the flexibility that is needed for being able to deliver the right goods to customers and market. For a company to be flexible decisions must be made fast and needed changes must be able to be done easy and without too large costs and investments.

Aktiv bullerdämpning i ventilationssystem

Active headsets have been on the market for years and now it is time for something else to enter the stage. The technology of active noise reduction can for exmple also be used in ventilation systems for reducing ventilation noise. An active control system principally consists of four important components, namely the downstream error microphone, the upstream detection or reference microphone, the digital signal processor (DSP) and a loudspeaker. The upstream reference microphone listen to the primary ventilation noise and sends it to the DSP which makes a phase shift to the signal and sends it to the loudspeaker. The loudspeaker sends out the opposite waveform of the incoming one and reduce the primary ventilation noise.

Effekter av "Billigaste väg" för Stora Enso Skogs transportverksamhet :

Transportation constitutes a large part of the forest industry's raw material costs. Transport also contributes a significant proportion of the carbon dioxide emissions. In order to reduce both the cost and environmental impact different types of decision support are required. These, in turn, require extensive information about the road network and correct information on road path selection and transport distances. In the development of national road data base for forestry (SNVDB) a road selection application has been included.

Att utföra användarcentrerat arbete med små medel

Usability is a field within systems development which doesn?t get the attention it might deserve. Above all, it?s considered time consuming and expensive by many people in the industry. The current information regarding low-cost alternatives to achieve a more usable system seems to be almost non-existent.

Torkning och pelletering av organiskt hushållsavfall - en konstruktionslösning

The research in this paper aims to producing a home version machine thatcan dry and make biological waste into compact pellets. This product ismade primarily for those who want to improve the environment and reducethe energy consuming process of separating the biological leftovers fromother waste in the large processing plants and save money due to reducedpickups of waste. Since there is no commercially available product thatdoes what we want to achieve we had to start from the beginning with boththe design and the mechanical aspects. The result is a machine, that fits inour homes, and in an easy and inexpensive way reduces the amount ofbiological waste that needs to be collected by the public wastetransportation system. This is done without reducing any of the energy inthe waste and it can still be used to compost or by large-scale plants that usethe waste to make electricity.

Modellering av ett bränslesystem i Modelica : tillämpat på ett obemannat flygplan

Mathematical models possible to simulate are of great importance in order to make successful projects in the aircraft manufacturing industry. An aircraft fuel system is very complex, containing pipes, tanks, orifices, valves and pumps. The principal of this thesis is using the tool Easy5, which no longer is considered reliable enough in terms of development and support. This thesis tries to evaluate the Modelica language as a possible alternative to Easy5. To make this evaluation, the components concerned in the fuel library in Easy5 are implemented to the Modelica language.

Optimalt mottagningsstall för kalvar : en fältstudie

A cattle producer that buys calves that are younger than six months to the herd should have a starter stable to prevent infection spreading in the herd. According to the Swedish animal welfare regulation there has to be a starter stable if more than 50 calves that are younger than four months are bought in yearly to the herd. The aim of the study was to improve the knowledge about bovine buildings and management of starter stables to obtain optimal weight gain and health of the calves. The hypothesis 1) The younger the calves are when purchased, the higher the calf mortality and 2) Purchasing calves from a high number of herds involves a higher risk of calf health problems and calf mortality were tested in the study. The objective of the study was to give advices by way of presenting ideal solutions of how a starter stable should be constructed and managed. A field study was done during June to September 2008 to collect knowledge and experience from existing starter stables.

Ontologier i kunskapsorganisation Vägen från tesaur till den semantiska webben

This thesis aims to analyse ontology, primarily as the word is used in the context of the Semantic Web. One of the main questions is how ontologies relate to classification and thesauri, two concepts well known within Library and Information Science. The vision of the Semantic Web, a more intelligent addition to the current World Wide Web, has raised the question of how to deal with information scattered over a multitude of locations, stored in different formats, written in different languages et cetera. This issue is in many ways similar to the classical problems encountered in library science: how to classify and categorise large amounts of information. The use of ontologies is one of the main steps leading to the Semantic Web, as well as a tool which can be used in other areas of information organisation and management.

Kriterier för säkra betaltjänster på nätet

This report has a purpose to identify the payment methods available for e-commerce, tosee if they fulfill certain requirements. By investigating thirty of the most popular webshops, a few primary services have been found and revised. Security requirements fore-payment systems include authentication, non-repudiation, integrity and confidentiality.Other requirements considered to be important are usability, flexibility, affordability,reliability, availability, speed of transaction and interoperability. Advantages and disadvantageshave been identified to see if the services fulfill the requirements. Also surveysof consumer payment habits have been investigated to identify the factors of decisive importanceto the usage of payment services.

Diagnostiksystem i gaffeltruckar

This is a final thesis done at BT, considering one of their forklift truck models called Reflex. The first part of this report is about a preliminary investigation investigating what kind of diagnostic systems BTwants to use, and also which demands there are to meet all expectations on such system. Secondly a diagnostic system, which will show if the drive wheel is worn out, will be presented. In the preliminary investigation, two kinds of diagnostic systems were mentioned. These were Model based diagnosis and Predictive analysis.

För en kreativ arbetsplats: Kvinnor + Män = Sant - En fallstudie av Enea Systems AB

Syftet med vår undersökning är att ge förslag på vad ansvariga på mansdominerade företag bör tänka på vid utformningen av sin interna- och externa kommunikation samt hur dessa kan samverka då mansdominerade företag önskar attrahera fler kvinnliga medarbetare.Vi har valt att använda oss av relevanta teorier som kopplar samman marknadskommunikation (intern- och extern kommunikation), rekrytering (att attrahera) och mångfald (genus). Relevanta delar av dessa teorier har använts vid analys av vårt empiriska material.Vår empiri utgörs av intervjuer med sju medarbetare på Enea Systems AB samt observation av Enea Systems AB under arbetsmarknadsdagar på Lunds Tekniska Högskola. Slutsats: Det är viktigt att ha en förståelse för hur intern- och extern kommunikation hänger samman i ett system. Det som kommuniceras internt speglas även utåt. Det är därför viktigt att förstå hela flödet av kommunikation, som finns både internt och externt för att mansdominerade företag skall lyckas attrahera fler kvinnliga medarbetare.

Europeisk fusionskontroll : på olika villkor

The decision of the European Commission to block the merger between Volvo and Scania in the late 90?s became the starting point to the debate of the possible discriminating effects of the European merger regulation. Especially since the Commission a few years earlier had approved of the merger between Mercedes-Benz and Kässbohrer on the German bus market, where the conditions for competition had been similar to those at hand in the Swedish case. The issue that was and still is in focus is whether the European merger regulation is more difficult to pass for large companies situated on a smaller domestic market than is the case for their competitors of corresponding size but situated on a larger domestic market.This thesis aims at examining what the judgement of the geographical relevant market means for the application of the Merger act. This is being done from two perspectives.

CE-märkning av lyftredskap. Processen, användningsområden och dokumentation.

Rapporten är ett examensarbete som utförts på BAE-systems Bofors AB i Karlskoga. Denna rapport handlar om att undersöka och ge förbättringsförslag för processen framtagning och CE-märkning av lyftredskap. Rapporten tar även upp dokumentationshantering, dokumentationskrav vid CE-märkning, vad som gäller vid CE-märkning av lyftredskap som är konstruerade för militära ändamål. Rapporten gergrundläggande kunskaper om vad CE-märkning innebär och varför det görs.  Genom undersökningar och intervjuer som utförts på företaget skapades en karta över processen för framtagning och CE-märkning av lyftredskap. Sedan sammanfattades den dokumentationen som bör finnas tillgänglig på BAE-systems.

When companies grow up - A case study of a family-owned company?s management control system

Problem: What are the characteristics of Polykemi?s management control system and how is it affected by growth? Purpose: To describe and analyse the management control system of a medium-sized family-owned company from the perspective of Simons? Levers of control. Research design: An abductive, interview-based case study of Polykemi AB. Conclusion: Polykemi?s management control system is primarily a traditional one which is rather strong in terms of Levers of control.

Business intelligence : Framgångsfaktorer vid användningen av ett BI system

The management of information is a significant competitiveness in companies. Companies stored and save information every day, and it is very common to save de information in different sources. This makes de management of information complex. To mange, monitor and analyze the information, companies can use a system called Business Intelligence. BI system is an analytical system that extracts and converts data into useful information that helps employees to make informed decisions.

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