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255 Uppsatser om Railway bridge - Sida 5 av 17

Skadeutredning och glidningskontroll av järnvägsbro 3500-3424-1 : En underbyggnad på villovägar

Trafikverket förfogar över närmare 4000 järnvägsbroar i olika skick och ålder runt om i landet. Beståndet är i ständigt behov av underhåll och erfordrar kontinuerliga kontroller. Den här rapporten är utformad som en skadeutredning på en enkelspårig järnvägsbro söder om Solvarbo i Säter kommun. Järnvägsbron är i drift och här passerar över 10 000 tåg/år. Allt från snabbtåg till godståg.

Tonala skillnader mellan ett tryckande stall och ett limmat stall. : -hos en bouzouki

SummaryI have a great interest in bouzoukis and since I, during my education in guitar making, mainly have focused on building bouzoukis and other traditional folk instruments, I have chosen the bouzouki as the object of my degree project.In connection to the making of these instruments, I started to consider the construction of the bouzouki and why the bouzouki has such a characteristic sound.One of my theories is based on the fact that most bouzoukis are made with floating bridges instead of glued pinbridges. Do these types of bridges differ from each other tonally and if so, how much and in what way?To receive answers to my questions, I have built two identical bouzoukis with different types of bridges, one with a glued pinbridge and one with a floating bridge. I have been very precise in the making of these instruments, giving them the exact same dimensions and using material from the same piece of wood. This to make sure that the instruments should be as exactly alike as possible.After finishing the making of the bouzoukis, I arranged for a sound test where I let musicians play and listen to the instruments.

Perspektiv på avreglering av svensk järnvägspersontrafik

This thesis examines the deregulation reform of the Swedish railroad industry, focusing on passenger transport between 1988 and 2005. The purpose of the thesis is to examine the effects from the deregulation reform on prices, market concentration and to determine whether SJ (the state owned incumbent) has been conducting strategic behaviour in order to prevent new entrants to the market. The chosen method consists of interviews with the MD at SJ between 1988 - 1998 Mr Karl-Erik Strand, the transportation researcher at SSE Mr Gunnar Alexandersson. Statistical sources and companies financial reports have also been used. The results that I have found were besides the fact that the market concentration is still significant high and the profitability among the operators low, is that the prices has increased more than CPI during the period but the competitive tendering has resulted in lower government subsidies after the deregulation.

När tågen slutat gå : förvandling av övergiven räls till publikt promenad- och parkstråk

Abandoned and unused railway structures often possess great potential if they are reclaimed and reused for new purposes. The thesis focuses on the global trend of restoring and revitalizing these areas, converting them into park areas, rail trails and green corridors in the city landscape, while preserving their ecological, social, esthetic and historic values. These rail areas were often abandoned when industries moved out from the cities, either to industrial areas or abroad. The use of railways for transporting industrial goods was also replaced to a large extent my motorized road vehicles in the mid 20th century, leaving the rails under-utilized. Because of their location and intrinsic values, they can be reused for important functions, such as green areas in the city environment, providing space for recreational activities and exercise and social meetings and interactions. I have closely investigated the three park areas High Line in New York, Promenade Plantée in Paris and Schöneberger Südgelände in Berlin, which have all gone through this transformation in recent years. I have summarized my conclusions in three key concepts to consider: design for social values, preserve the architectural history, and leave room for future evolution. The final part of my work is a design program for an abandoned railways area in Stockholm: Eriksdal railway area.

Biblioteksutvecklingen i Göteborgs södra skärgård, Styrsö folkbibliotek, 1943-1976

The purpose of this thesis is to describe and analyse the road towards a modern library in the southern archipelago of Gothenburg between the years 1943 and 1976. The archipelago consists of about thirty smaller and larger islands, of which seven are inhabited throughout the year. Styrsö and the surrounding islands composed a municipality of their own until 1973. In January 1974 it became a part of the municipality of Gothenburg, this is also the year when the only bridge in the archipelago was ready to be taken into use, between Donsö and Styrsö. There is no bridge between the mainland and the islands.

Jämförande simulering och modellering av framtida järnvägars elenergiförsörjning

In this thesis, the Train Power System Simulator (TPSS) has been compared and verified with the commercial simulator TracFeed® Simulation (TracFeed). The basis for the comparison was a given part of the Swedish railway system, with steel transportation trains. Primarily, emphasis was placed on running time and energy consumption in simulation results. Two transformer systems were analyzed, booster and auto transformers. The high voltage transmission line, parallel to the railroad track, was disconnected in some simulations.

Is insourcing qualified human capital from China a future for Sweden?s wealth sustainability?

The Methodology used to gather empirical materials for this thesis has been different types of interviews. The interviews have been mainly unstructured personal interviews directly with our respondents, due to limiting factors some of the interviews have been carried out via phone or email.The theoretical framework consists of literature from well-recognised authors and is divided into four different parts: Insourcing & Outsourcing, Intellectual Capital, Knowledge Management, China & Intercultural understanding. The empirical foundation has been gathered from a great variety of different sources in an attempt to cover the many complex angels in which this subject can be looked upon. Chinese students, managers in international companies with experience from China, Chinese employees in Swedish companies and different people with good knowledge of different areas of China are all among our respondents.In our conclusion we have reached the three following conclusions for why one should start a ?bridge building? enterprise in between qualified Chinese human capital and Swedish structure capital: 1.

Spridning av bekämpningsmedel i banvall : Modellutveckling och känslighetsanalys

The stability of railway embankment is essential for safe transport. In order to ensure safe transport, water should be allowed to freely drain. Furthermore, as the engine driver has to be able to see signs, and people working on the embankment are supposed to easily see flaws on the rails to ensure safety for the passing trains, plants should not be allowed to grow on the embankment. In Sweden there are 12 000 kilometers of railway tracks and 25?30 % of them are treated for weed control every year.

Bil- och järnvägstrafikens inverkan på inomhusmiljön med avseende på ljud och luft : - I planerade bostäder på Haga

NCC has given us a commission to investigate a planned housing area in Haga, Karlstad, situated close to the traffic route Hagaleden and the railway. The housing area consists of one hundred apartments in five different houses. The houses are linked to each other by balconies with glass panels. A long carport is situated between Hagaleden and the housing area to absorb part of the noise from the road. The design of the housing area is creating a silent backyard.

Tågtrafikledare i praktiken : Informationshantering och systemanvändning vid Gävle driftledningscentral

In Sweden whenever trains or maintenance workers want access to the railway system, their requests of usage and movements are being supervised, granted and handled by train dispatchers. The profession holds a key role in making the complex railway system work in terms of efficiency, safety and delivering on-time arrivals. This master thesis, delegated by the Swedish Transport Administration, has been carried out at the Division of Human Computer Interaction at Uppsala University and at the train traffic control center in Gävle. The aim has been to map what information the train dispatchers use in order to make safety-related decisions concerning their working goals. And further to describe and analyze how the train dispatchers, visavi their tools and systems in the work domain, gather necessary information.The result indicates a complex, diverse and spread out setting of different programs, procedures and tools that make satisfactory fulfilment of efficiency, safety and punctuality in relation to the time table hard.

Numerisk simulering av jordtryck mot rörbro ? Med tillämpning av programmet PLAXIS

This thesis deals with numerical simulation of earth pressure against tubular bridges in the software Plaxis. Plaxis is a FEM (Finite Element Method) software based on numerical calculations for which approximate solutions are developed through an iterative process. The program is specifically designed for soil and rock mechanical tests, such as voltage and deformation calculations in soil.The Royal Institute of Technology conducted in 2005, field tests on tubular bridges of corrugated steel, which was part of Ersa Bayoglu Fleners PhD (Bayoglu Flener, 2009). She studied how two different tubular bridges deformed during installation and filling. Tests and measurements were made during filling.

VART LEDER EN BRO AV POESI? ?Jo, jag g?r i f?rskoleklass och jag kan skriva dikter.?

In autumn of 2021, the anthology A Bridge of Poetry was given to all six-year-olds in Sweden. The anthology contains both older and contemporary poetry, as well as both children?s poetry and poetry written for experienced readers. The idea is that, with the help of an adult, texts and images, and in some cases short movies, will together stimulate children?s thoughts and initiate conversations, as well as arousing children?s curiosity about poetry.

Evidensbaserat arbetssätt på bibliotek: Erfarenheter av användningen av EBLIP

The purpose of this thesis is to shed light on how evidence-based librarian and information practice (EBLIP) is understood and practised at some Swedish hospital libraries, and also to analyze how EBLIP functions as a strategy to bridge the gap between research and practice as described by Haddow & Klobas. The theoretical framework for the study is partly based on Haddow & Klobas description of the gap between research and practice in the field of LIS and partly a description of the EBP-process which plays a key role in the use of EBLIP. Interviews have been done with four people, three librarians, all with management experience, and an academic development officer, active at three different hospital libraries where EBLIP is practiced. All informants believed that it is important to make use of research results in order to improve services and practice. In their efforts to apply the research findings the informants face a number of hindrances, which indicates a gap between research and practice.

Utsikt från höghastighetståg : om reseupplevelsens krav på landskapet

As we travel more and more by train it becomes increasingly important that the time we spend traveling, is of great quality. This has been the foundation of this master thesis and has shaped the outcome of it. The traveling experience, that is, the experience of the landscape that flashes by outside the train window, is an important aspect in railway planning and an aspect that should be taken into greater consideration. The purpose of this master thesis has been to examine how to compose or improve the travel experience for an already planned high speed railway and how the travel experience can be combined with other aspects, which have claims on the landscape. This thesis is based on a literature study and a case study of Ostlänken. The work describes Ostlänken, a planned high speed railway in Sweden between Järna and Linköping, with top speeds at 300-320 kilometers per hour.

Fallstudie av designuppdrag för bridgeförbundshemsida : En studie i hur man kan hantera ett designuppdrag åt en förening med många olika användare

Att utforma gra?nssnitt och system da?r variationen mellan anva?ndares respektive anva?ndningsma?l, a?lder eller andra fo?rutsa?ttningar varierar, kan vara en sva?r uppgift och kra?va fo?rsta?else fo?r de ma?nga olika anva?ndarna. Fo?rbundet Svensk Bridge a?r en organisation med o?ver 26.000 medlemmar i a?ldrarna 10 till 90plus, och har sa?ledes ma?nga olika typer av anva?ndare, med olika fo?rutsa?ttningar och kunskap, fo?r att kunna ta till sig den information som finns pa? Fo?rbundets hemsida.I den ha?r fallstudien har det tillva?gaga?ngssa?tt av den designprocedur fo?r framtagandet av en prototyp pa? en ny hemsida a?t Fo?rbundet Svensk Bridge utva?rderats. Detta har genomfo?rts genom dokumentation av designproceduren under alla dess olika moment, och sedan genom en utva?rdering och ja?mfo?relse av designprototypen gentemot dagens befintliga hemsida.

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