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251 Uppsatser om Trip-track - Sida 14 av 17

Enklare korglutning

This project was led on behalf of Bombardier Transportation in Västerås, Sweden, incollaboration with KTH Stockholm and EPFL Lausanne. This project is connected to thedevelopment of a new and simplified tilt system for rail vehicles.Growing competition from other means of transportation has forced railway companiesthroughout the world to search for increased performances.Travelling time is the mostobvious performance indicator that may be improved by introducing high-speed trains.They require very large curve radii and long transitions curves not to impairridecomfort, another performance indicator. Building new tracks adapted to high speedtrains is very costly and can only be justified where the passenger base is large.Trains with the capability to tilt the carbodies inwards the curve is a more cost efficientalternative. The tilt inwards reduces thelateral force felt by the passengers allowing thetrain to pass curves at enhanced speed with maintained ride comfort but increases thefrequency ofmotion sickness.The benefits of tilting trains are improved speed capability in curves and enhancedpassengers comfort, but at higher buying and maintenance cost. As the conventionaltrains increase their speed in curves, the performance advantage of tilting trains isreduced while their prize is still kept significantly higher and constant.

Seroprevalence of Rift Valley fever in sheep and goats in Zambezia, Mozambique and preparations for a metagenomic study of arboviruses in ticks

The virus-mediated disease Rift Valley fever (RVF) was discovered during an outbreak in Kenya in the 1930s. Since then it has spread to most parts of Sub-Saharan Africa, and in the last decades several outbreaks have caused economic and health issues in Africa, Yemen and Saudi-Arabia. The disease mainly affects domestic livestock, causing abortions, but is also a zoonosis. To be able to control the spread of the disease it is important with surveillance for better knowledge about the distribution and virus circulation even in inter-epidemic/epizootic periods. The human population is growing, and people and their livestock constantly move closer to areas with wild animals which act as reservoirs for different viruses. Also, humans and their animals often get within reach for arthropod vectors, hosting or carrying viruses.

Vetenskaplig kommunikation i förändring: en fallstudie av ett svenskt forskningsbiblioteks beståndsutveckling

For hundreds of years the scientific journals has been the foremost tool for scholarly communication. Publishing of research results is very important for scientists. Often the research is bound to the university and the research libraries supplies the scientist with all journals needed. The last decades the libraries have seen the costs for subscriptions to journals explode. Commercial publishers often lie behind the mostly unmotivated escalation in price.

Fastighetsköp i utlandet : En jämförelse mellan Sverige, Spanien, Thailand och Turkiet

AbstractBuying real estate property is a complex process for the uninitiated. Apotential buyer has to keep track of laws and regulations affecting theproperty. The purchase of a property is for many also the largest deal made inlife and because of that it is especially important to make sure everything getsdone correctly.A real estate property purchase contains a number of different elements, suchas engineering data and inspection of the property and documentation to makesure that the signing of contracts and clauses are done according to the laws ofthat country. These purchase process steps are ordinary people not familiarwith, and therefore they hire the help of a real estate agent.Buying a property abroad complicates things because the countries have theirown laws and rules that make them different from the Swedish rules which theSwedish real estate buyers are accustomed to.Our thesis is about exploring if a Swedish buyer knows the buying process inforeign countries, or whether they rely on the broker they hired. The countrieswe have chosen to examine and compare against Sweden is Spain, Thailandand Turkey.Our questions will be answered by interviewing buyers about how they feelabout their buying process, if they encountered any problems before, duringor after their purchase, and if they are happy with their purchase after theevent.Our study shows that the buying processes in all four countries are generallyequal to each other.

Ett nytt pedagogiskt material! : 4DFrame, hur kan man arbeta praktiskt med det?

The objective of this study is to investigate a new pedagogical material called 4DFrame, how it is experienced by informants and how suitable it is in education - in particular mathematics. Socioculturalperspective has a central role in this study when students are given opportunities for linguistic and social interaction during the experiment with the new pedagogical material. The methodology for this study has been visits, interviews, and observations. The study reveals that there are different views on the didactic potential for mathematics of the new teaching material, though no conclusions can be drawn regarding whether this material is more or less suitable in teaching since no research have been found that compares this with other pedagogical materials. Both national and international studies show the need to find alternative and better ways to make mathematic education meaningful.

Magnesiumintagets betydelse för blodtryck och magnesiumkoncentrationen i stickprov av urin, träck och blodplasma hos häst

The purpose of this trial was to evaluate the possibility to use sampling of faeces, urine and plasma, and measurements of blood pressure as methods of discovering hypomagnesemia in horses, as well as the application handiness of these methods. The most commonly used method of checking the magnesium status of a horse is to analyze samples of serum or plasma. The trial was of a switch-back design, in which the horses were used as their own controls. The animal material was five Swedish warm blooded trotters between six to ten years old, and weighing between 485-620 kg. The trial consisted of three periods that were two months each.

The Last Track : En slutstation och en skriftlig reflektion

Fokus för den här C-uppsatsen är arbetsmetod och arbetsprocess i den estetiska lärprocessen ur ett ?målrelationellt? perspektiv i vilket målet för elevarbetet ses som en produktion av estetisk praktik och reflektion och där bildspråket fungerar som en pedagogisk funktion vilket bidrar till en förskjutning av synen på hur man lär sig genom relationella möten.Undersökningen utgår från ett ämnesintegrerat filmprojekt mellan samhällskunskap och rörlig bild som jag gjorde med elever på en gymnasieskola 2008. Jag har undersökt detta genom att låta före detta elever komma till tals och i intervjuer har de sex år efter avslutade studier, med hjälp av foto- och filmelicitering, berättat om vad de minns av arbetsmetod och arbetsprocess i filmprojektet. Bakgrunden till studiens frågeställning är en handledande arbetsmetod i rörlig bild, och funderingar kring vad den gör med lärande skolarbete i ämnesintegrerade projekt. Är estetisk lärprocessen i rörlig bild ett flummigt estetisk nonsens, något roligt att göra i vila från andra ämnen, eller hjälper detta elevers lärande framåt samtidigt som de har roligt i sitt skolarbete? Syftet med min studie är att belysa hur det relationella synliggörs i en estetisk lärprocess och jag vill härigenom bidra med kunskap om detta.I resultatet av undersökningen visar det sig att de före detta eleverna upplevt att den handledande arbetsmetod de fick tillgång till i arbetet med rörlig bildutvecklat deras färdigheter att reflektera över sina kunskaper, kritiskt granska, värdera och lösa problem i lärandet.

Skogsskötsel för att minimera stormfällning över järnväg :

The society of today is dependent of secure transports and deliveries of electrical power. Interruptions in different activities because of fallen trees cost a great deal of money in form of reparations and claimed damages for transport companies and electrical suppliers. Fallen trees along some railway sections are a severe problem. For instance, to repair the damages of the storm of week 5 year 2002, costed 2 800 000 SEK for the line region of Hässleholm. Today, the Banverket railroad company has no norms in general for how close to the railway the forest is allowed to grow.

Lättridningens påverkan på hästens rörelsemönster i trav :

The interest in horses and equestrian sport is constantly increasing, and so is the will in both riders and trainers to learn more about the effect the rider and its equipment have on the horse. The last twenty years, more and more studies have been performed were the horse and its kinematics have been in focus. The access to more advanced technology has made it possible to study areas, which earlier have been hard to reach. The knowledge about kinematics in the horse, and how riders and their equipment interact with the horse?s movement, is also of great interest to veterinarians in equine practice.

Optiska illusioner inom landskapsarkitekturen

My thesis is a combination of theory and practice, where theory is meant to create a context and a background for my interpretation proposal. I wanted to ?access? the ideas that are always in the background of the reasoning which underlies both planning in a larger scale, and the design of a place. I wanted to make a ?work of ideas.? In the process of shaping the proposal, I wanted to be deleted from the site itself.

Linjenätsutredning i Täby kommun.

The public transport network in Täby commune consists currently of two types of bus line of whichboth belong to the category of feeder lines. The first type terminates at Danderyds sjukhus and feedsto the subway whereas the second type terminates at Täby centrum and feeds to Roslagsbanan, asuburban narrow-gauge railway system in northern Stockholm. The trunk bus line that connectsgreater parts of the commune with Danderyd is the ring line 604 and goes both clockwise (604H) andcounterclockwise (604V). The main negative aspect of this structure is the complicity in incorporatingit timetable-wise with other bus lines that share the same route, such as through Enebyberg.The goal of this project is to investigate the possibilities of splitting ring line 604 and connecting theends to two different bus routes that terminate at Täby centrum today. Apart from easing thecoordination with other bus lines through Enebyberg, the extension also creates new directconnections from various areas in Täby to Danderyds sjukhus.

Statistikens dubbla potential: Frigörelse eller förtryck?

This essay concerns equality statistics as part of a population census. It is a kind ofstatistics that is not in action in Sweden because of data protection law for sensitivedata (Personuppgiftslagen). This kind of an enlarged census is requested frominternational institutions like the UN and the EU as a tool to combat discriminationand to keep track of human rights. In Sweden there is a prohibition against collectingsensitive data regarding for instance sexuality, disability, transgender, ethnicbackground and national minority.The essay examines arguments from minority groups in Sweden, who participated inan enquiry done by the Equality Ombudsman on a government assignment 2011. Theenquiry process was done during 2012 and resulted in the report Statistikens roll iarbetet mot diskriminering (The Role of Statistics in Combating Discrimination).The starting point of the essay is to look at equality statistics with a two foldedpotential: as liberating or oppressive for the counted.

Rekommendationssystem för interaktiva musiktjänster : en utredning av aktuella trender och attityder gentemot framtidens rekommendationssystem diskuterat ur forskar-, industri- & användarperspektiv

Parallel to new technological advancements, including the development of interactive recommender systems, digital music services on the Internet, such as Spotify, have in a short time span gradually replaced former physical media such as CDs and MP3-players and become pioneers on a market with an otherwise uncertain future. By subscribing to the service, users have access to a vast library of music and from any device with Internet access. In order to provide a satisfactory and useful musical experience, different ways of coping with the vastness is required - which is precisely what recommender systems are for. Improved filtering techniques and use of devices built in sensors, make way for new opportunities of more precise and contextually tailored suggestions for track selection, which in turn leads to potential privacy issues when using interactive music services. But where do we stand today? By compiling, exemplifying and discussing three different perspectives with relating to the development of interactive music recommender systems, the objective for this paper is to provide a for science, industry and user, objectively nuanced account of current potentials and expectations.

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.

Förbättringsförslag pådaglig styrning

The Swedish Transport Administration manage nearly 4,000 railway bridges in different condition and age around the country. These bridges is in constant need of maintenance and requires continuous inspections. This thesis is designed as a damage investigation on a single-track railway bridge south of Solvarbo in Säter municipality. The railway bridge is in operation and serves over 10,000 trains a year, everything from speed trains to freight trains. The bridge is built as a beam bridge, simply supported over a road.

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