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3303 Uppsatser om Intelligent Traffic Systems - Sida 20 av 221
Faktorer som påverkar datakvaliteten hos affärs- och DW-system - En fallstudie från en högteknologisk industri
This thesis aims to examine how the quality of data that is entered into and retrieved from a corporate group's ERP and Data Warehouse systems can be improved. The corporate group has already taken several measures that will improve the quality of data. For instance the corporate group has updated and merged the previous ERP systems into one. At the same time the corporate group adjusted the settings in the updated ERP system, so that it will be harder to register incorrect data in the ERP system. With regards to the processes and routines, the studied department has efficient written routines and processes.
Handlingsplan för rening av dagvatten från hårt trafikerade gator i Örebro
The main purpose with the project has been to approximate the magnitude of the pollution transport from the actual road surfaces and to get an approximation of the possibility to collect the pollutants to reduce the load to the water and improve the water quality.The quantity of pollution transport from the most trafficated roads areas in Örebro city has been calculated. Roads whith a traffic exceeding 10 000 vehicle/day. The study has been done with the calculation tool StormTac. Through analysis of traffic loads and road surface, which together with a different kinds of parameters gives an approximation of the pollutant transport.The calculation has included some metals and other substances in the stormwater and has also included the present of suspended solids. Included the overall study, some smaller areas has also been calculated for the possibility to remove pollutants.The work also includes calculation for three different areas for stormwater treatment.
Varumärkespersonlighet hos en kommun
Vi har undersökt en kommuns personlighet med hjälp av en teori utformad av J. Aaker. Teorin listar ett antal personlighetsdrag som vi genom en enkätundersökning tagit reda på hur invånare i kommunen anser att kommunen passar in på dessa. Vi har undersökt två olika grupper, invånare i kommunen och anställda på kommunens olika förvaltningar för att se om det fanns någon skillnad däremellan. Skillnaden vi fann var väldigt liten.
Intelligent destillation av kaos : En studie av hur en Business Intelligence-funktion skulle kunna se ut hos Kortbolaget
Hur företag skall bedriva sin omvärldsbevakning har blivit ett allt mer aktuellt ämne i och med ökad globalisering och hårdnande konkurrens. Att förstå marknadens förutsättningar och att kunna agera på tidiga signaler blir en allt mer kritisk faktor i företagens överlevnad. Jag har i denna studie undersökt hur ett svenskt företag kallat Kortbolaget, med den skandinaviska ägaren Datakonsultföretaget, skulle kunna gå tillväga för att skapa en lämplig struktur för att bedriva sin omvärldsbevakning. Kortbolaget bedriver för närvarande ingen strukturerad omvärldsbevakning, men visar på en vilja att ändra detta..
Detektering av sprickor i vägytor med hjälp av Datorseende
This thesis describes new methods for automatic crack detection in pavements. Cracks in pavements can be used as an early indication for the need of reparation.Automatic crack detection is preferable compared to manual inventory; the repeatability can be better, the inventory can be done at a higher speed and can be done without interruption of the traffic.The automatic and semi-automatic crack detection systems that exist today use Image Analysis methods. There are today powerful methods available in the area of Computer Vision. These methods work in higher dimensions with greater complexity and generate measures of local signal properties, while Image Analyses methods for crack detection use morphological operations on binary images.Methods for digitalizing video data on VHS-cassettes and stitching images from nearby frames have been developed.Four methods for crack detection have been evaluated, and two of them have been used to form a crack detection and classification program implemented in the calculation program Matlab.One image set was used during the implementation and another image set was used for validation. The crack detection system did perform correct detection on 99.2 percent when analysing the images which were used during implementation.
Raalie steering systems
Under ht08 och vt09 har vi gjort ett examensarbete där vi i gruppen utvecklat ett mekaniskt styrsystem för sjukhussängar. Det nya styrsystem ska underlätta det dagliga arbetet för personalen på sjukhusen, då det idag är svårt att kontrollera sängen när man är ensam och knuffar. Men med RaaLie fastmonterad på sängen kan man utföra arbetet själv, och det är mycket lättare att ta sig runt skarpa svängar och trånga passage..
Informationskrigföring : den nya teknikens hot
The new information society has revolutionised almost the entire world. But the new technique does not only bring good. That which was before only available on paper may today only be available on a computer system. This makes it possible to send data electronically. In the wrong hands that information can become a threat against the security of an individual, a company or even a nation.
Spolmaskangrepp är ett ökande problem hos värphöns
This literature review summarizes available data on infection with the parasitic roundworm, Ascaridia galli, as a cause of disease in poultry, including the consequences of a conversion to alternative production systems. Ascaridia galli has a direct life cycle with resistant eggs that survive and are easily spread in the environment, especially in systems with bedding materials where the faecal contact is high. The infection is usually subclinical but depending on the infection dose, the symptoms range from weight loss and diarrhea to mortality. Factors such as the feed composition and genetic variation among different hybrids clearly affect the establishment rate of the infection. Ascaridia galli will probably become an increasing problem, with a shift from the traditional battery cages to alternative systems where the risk of re-infection is high.
Konceptstudie av eltransmission för 8-hjulsdrivet fordon
SEP Modular Armoured Tactical System is the next generation of military vehicles developedby BAE Systems Hägglunds AB. At present time, BAE Systems Hägglunds AB aredeveloping a 6-wheel electrical hybrid and a conventional 8-wheel vehicle. The questionformulation was summarized as: ?In which ways can the electrical transmission in a hybriddriveline for SEP be designed, when the surrounding fixed interfaces are kept and the unity ofcomponents within SEP is maximized??. The purpose of this master thesis was to study avariety of concepts for hybrid propulsion.
Systemen med rätt inställning - En studie om whistleblowingsystem i Sverige
In order to counteract and to discover unethical actions within an organisation, a growing number of Swedish companies implement a so-called whistleblowing system. The purpose of our essay is to study the mindset of companies and further analyse how this mindset affects the design and quality of companies' whistleblowing systems. To do this, we have used a qualitative approach by interviewing different Swedish companies about their mindsets and systems. The study determines that there seemingly are three different categories of systems of varying quality. In this study we have chosen to call them "internal system", "external system" and "combined system".
Gulliver Simulation - En systemarkitektur f or n atverkssimulering av
Nowadays, a lot of resources are spent on developing systems that will make it possible forvehicles to act autonomously, and make them more effective. One of the projects that isworking on this is the Gulliver Project. Gulliver has constructed a number of miniaturevehicles equipped with various sensors, to use as a physical testbed for autonomousdriving. One big disadvantage with this method is the long iteration time that occursduring the development and testing of a new software.This project has improved this process by developing a system architecture of a virtualtestbed where it is possible to simulate autonomus vehicles that communicates throughany type of wireless network. The testbed has made it possible to simulate autonomusvehicle systems that with a reasonable margin of error, acts like the system would actin a physical test.
Realistisk restidsberäkning för comodal reseplanering
With increasing traffic congestion problems in bigger cities, it is becoming more and more important to provide the traveller with correct information about all transport alternatives. When doing that, the traveller gets the opportunity to make the best decision based on the current traffic situation. Instead of traditional travel planners, where public and private transport modes are presented separately, the co-modal travel planner offers a combination. In order to make the comparison correct and fair, the travel times have to be estimated realistically and on equal basis. This master thesis focuses on how to estimate travel times in the city of Stockholm for journeys by cars, public transport, bicycles and also for walking.An investigation of the available data on maps and travel times shows where the currently used methods are lacking.
Beslutsstödsystems inverkan på Sveriges landstings upphandlingsenheter. En kvalitativ studie om beslutsstödsystem inverkan på planering ? och uppföljningsprocesser inom Sveriges landsting
Many organizations utilize decision support systems in order to handle different tasks and tosupport the decision-making process. Decision support system is a broad term used to referto several different types of systems. These types of systems can handle a wide range ofoperations within the organization. Consequently this will have an impact on differentoperations within the organization. The main aim of this study was to create a betterunderstanding regarding the impact of decision support systems on the various operationswithin the City Council's procurement units which in turn will increase effectiveness.
Miljöarbete inom den civila luftfarten
The main environmental problem for aviation is the great amount of exhaust gases, mainly nitrogen oxides, carbon monoxide, carbon dioxide and hydrocarbons - mostly "greenhouse gases" leading to climate changes. I decided to sort out what is being done to decrease these problems and what regulations there are concerning air pollution by the means of searching the internet and using publications from aviation authorities for current figures. I chose to scrutinize authorities on political, authority and company level, resulting in summarizing the work of UN and EU respectively, ICAO (International Civil Aviation Organization), JAA (Joint Aviation Authorities) and LFV (Swedish Civil Aviation Authority), and finally SAS, representing the airline companies. Conclusion that I have drawn are thatthere are regulations for air pollution, written down in ICAO's Annex 16, that are to be followed. Secondly, LFV are environmentally controlling their nineteen airports and since economy is an important reason for not giving priority to environmental issues in aviation emission charge and noise charge are added to the landing fees.
Platsrelaterat själv och autobiografiska minnnen hos svenskar boende i Schweiz
The aim of this essay is to examine three separate Swedish public libraries and their respective websites on the grounds of the usability sciences. I firstly had to summarize the main properties of the usability-field in order to gain an extended knowledge of its purposes and possible usage for today?s library systems. I was then able to apply the extended knowledge in the examination of the three library websites and the purpose of determining whether or not they were designed according to the standards set by the usability-sciences.Usability is a rather new science that deals with the dissection and examination of computer-based systems, in order to find the key components that make systems user-friendlier. With user needs being the main focus of its research, usability tries to meet all the different needs of the modern user and construct systems that are less system-centered and more user-centered.