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255 Uppsatser om Railway bridge - Sida 7 av 17

BREAM : Domänanpassning av olycksanalysmetod till sjöfarten

Syftet med följande studie var att undersöka hur olycksanalysmetoderna CREAM och DREAM kan anpassas till sjöfartsdomänen, samt hur begreppet den mänskliga faktorn kan beskrivas och hur kan den analyseras. Teoristudier samt intervjuer med anställda vid sjöfartsinspektionen och domänexperter har genomförts. Ett förslag på hur en anpassad analysmetod skulle kunna se ut redovisas som BREAM (Bridge Reliability and Error Analysis Method). Den anpassade metoden har utvärderats med hjälp av experter inom domänen. Utvärderingen visar på att metoden fungerar bra men att ytterligare specificering av metoden till domänen är önskvärt..

Isolerande balkonginfästningar : Thermally-insulated balconies

In this work a study has been performed to show the different kinds of insulated balcony connections exists on the market. In the work there is also a short description of thermal bridges concerning balconies. A description of older solutions for balcony connections is given as well as a calculation of the difference in energy costs for a insulated balcony connection compared to the standard connection. The work includes a short description of the different products. After that there is a short information about their insulation properties, durability, acoustic performance, assembly, computer programme and a short analyses for each product..

Välfärdseffekten av en konkurrensutsatt tågmarknad

The aim of this paper is to describe how to measure welfare effect of the deregulation and increased competition of the public transport by railway in Sweden. The paper also includes a numerical example of how to measure the welfare effect. In our study we use public data from SJ regaring quantity and ticket prices for the period 1996 - 2005. We have used equivalent variation, EV, as the method to measure the welfare effect. We demonstrate how to derive the equation to calculate EV by starting with a Marschallian demand function.

Halvautomatisk styrning av järnvägskran

En RMRC, Rail Mounted Railway Crane, är en kran för hantering av containertrafik till och från järnvägsvagnar. Kranen som är helt manuellt styrd utrustas med en semiautomatik som hjälper operatören att positionera kranen. Målpositionen för containern kommer från terminalens logistiksystem. För positioneringen har en lämplig regulator tagits fram som tar hänsyn till den mekaniska påverkan på motorer och växellådor som finns vid acceleration och retardation. Regulatorn har tagits fram och testats i en simuleringsmiljö.

Skönlitteratur som kulturell bro: om utländsk skönlitteraturs tillgänglighet på svenska

This study is an attempt to shed light on the importance of fiction as a bridge between different cultures and traditions. The objective of this essay is threefold. First it explores the potentiality of fiction as a communication channel between different cultures, societies and social groups. Secondly, it studies the availability of foreign fiction in Swedish language. And thirdly it tries to approach and analyze the structures and mechanisms behind that availability.

Turkiet och Europa : En studie i identitetspolitik

The purpose of this Masters-thesis is to examine the impact of identity politics on (a) Turkey's foreign policy towards Europe and the EU, and (b) Europe's/EU's political attitude towards Turkey, and what implications this may have on a possibly future Turkish membership in the EU. It is a more interpreting thesis than it is an explaining one. The examination shows that Turkey has considered Europe as a political model, while Europe has used the muslime Turkey as a threat to determine its own identity. The negotiations between EU and Turkey this autumn will have great impact on the identity of both sites. If the EU accepted Turkey as a member, the union could gain a chance to spread democracy to the islamic world and thereby earn global respect.

Förebyggande Brounderhåll

AbstractThe Swedish Road Administration in the region of Mälardalen has since 2004 worked to in¬crease the efficiency of the maintance of bridges based on limited functional requirements and time demanded action.The maintenance of the bridges is contracted in the county of Uppsala since 2004, and Örebro since 2007. The county of Nyköping and Västerås is contracted by the traditional system. The contractor will perform a regular maintenance on all bridges. The bridges are inspected by the contractor at least once every year.The contractor registers the result of the inspection in a database called BaTMan. BaTMan is a Bridge and Tunnel Management system and is a strictly web solution were the user logs in via the internet.The Swedish Road Administration also inspects the bridges to se that the demands on the bridges are followed.My work is to compare these different inspections and to see any development..

Integrerat brounderhåll

Trafikverket ansvarar för det statliga vägnätet i Sverige. Vägnätet består av cirka15 500 broar som ständigt utsätts för olika former av nedbrytning. Broarnabehöver därför underhållas med jämna mellanrum både för att hålla broarna i ettbra skick och för att motverka att nedbrytningen påskyndas.Under de senare åren har Trafikverket utformat en ny upphandlingsmetod avbrounderhåll. Den går ut på att allt brounderhåll för en region paketeras, i ett s.k.brounderhållspaket, som en entreprenör sköter i en femårig period. Ibrounderhållspaketen ingår förebyggande underhåll, avhjälpande underhåll ochakut underhåll.Syftet med det här arbetet är att följa upp den nya formen att upphandlabrounderhåll i paket.

Hjälpkraftsystem med två lågspänningsnivåer

Because of increasing demand of power on Malmbanan the capacity of the existing wires which supply the trains must be increased. This increases the stress on the existing poles and for this reason the system for supplying the loads along the railway is to be removed from the poles and be replaced by some other system. This thesis is a study on a two-level low voltage (1 kV and 0.4 kV) electrical system with the aim to investigate if it can be an alternative to the system used today taking into account the voltages, fault currents and costs.In this thesis the following tasks have been performed:? Gathering of data? Description of basic theory? Loadow and fault current calculations of the system with MATLAB? Life Cycle Cost estimate of the system? Analysis and conclusions from the resultsThe results show that the new system can be an alternative to replace today's system. The simulations and calculations show that the voltage drop is at an acceptable level and that the fault currents are large enough to supply a safe disconnection if a fault occurs at the far end of the system..

Prolog, Klimax och Katastrof : en återfallsförbrytares upplevelser och tankar om kriminalitet ur ett tidsperspektiv

The goal of this qualitative essay is to approach the knowledge of people who commit crimes. From a development psychology point of view, questions relating to childhood ang growth are some of the important subjects we choose to discuss. Our purpose is also to reveal the linkage between criminal behavior and different theories of the above mentioned perspective. To bridge the gap between the general and the individual, our survey was based on profound interviews with four inmates in prison. This offer an opportunity to capture the individual´s inner thoughts, feelings and experience about the criminal action.

Konstruktion av pipelinebro i Charagua, Bolivia

Guazuigua is a small village in Bolivia, which has had too small water resources, especially for irrigation. A project started after some studies were made, to create a canal to provide the village with water from a nearby town. To make the canal work it had to cross a dried out river. There have been several attempts to cross these dried out rivers, but with poor results. The purpose of the report is to provide a solution for this problem.

Biblioteket som en väg in i det svenska samhället ? En textanalys av styrdokument på Malmö, Stockholm och Umeå bibliotek

This thesis is about how the library can help immigrants integrate into theswedish society. By studying leading documents of the libraries in Malmö,Stockholm and Umeå in search for how the relate to work consideringimmigrants and integration I have studied the library as a bridge betweenbeing included and excluded in the society. The thought is that the libraryopens the door to new worlds both for immigrants and born swedes toobtain knowledge about a culture different from their own.In my thesis I reached the conclusion that library on a day to day basisworks with the integrationprocess for immigrants. Although the leadingdocuments should evolve since they show gaps and seem somewhatmisguiding in their presentation of the libraries function. The librariesshould work more with analysis of the environment that they are active in sothat they are more individualized for the people around it.

Simuleringsverktyg som hjälpmedel vid optimering av signalavstånd inom järnväg : Simulation tool as a help for optimization of signal distances on a railway track

The project Design analysis and proposals of plastic screw caps in Australia was performed at Högskolan Dalarna incooperation with University of Western Sydney, Australia. The Swedish company Tetra Pak, in Lund, were assigner forthe project that was performed 2006-2007. The commission was to do a survey about the packages for non-carbonateddrinks in Australia. The bottles had to be plastic, able to open in one step and with focus on the caps.The project has result in design analysis and a new proposal of a plastic screw cap for the Australian market. Sixbottles were choosen and they were all testet on 20 consumers each with a Likert-scale test.

Development and evaluation of environmental enrichment for captive Humboldt penguins

Environmental enrichment is of high importance for zoos. Borås zoo asked SLU (Swedish University of Agricultural Sciences) for a student to perform a bachelor thesis for them. The task was to develop and evaluate environmental enrichment for their Humboldt penguins. A structure was made, consisting of a sinking skeleton with a floating bridge attached to it. It was presented in an area of the pool that the keepers had experienced that the penguins did not use to any extent.

Prolog, Klimax och Katastrof - en återfallsförbrytares upplevelser och tankar om kriminalitet ur ett tidsperspektiv

The goal of this qualitative essay is to approach the knowledge of people who commit crimes. From a development psychology point of view, questions relating to childhood ang growth are some of the important subjects we choose to discuss. Our purpose is also to reveal the linkage between criminal behavior and different theories of the above mentioned perspective. To bridge the gap between the general and the individual, our survey was based on profound interviews with four inmates in prison. This offer an opportunity to capture the individual´s inner thoughts, feelings and experience about the criminal action.

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