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3079 Uppsatser om Transport mode choice - Sida 35 av 206
Utmattning av järnvägsbroar i armerad betong : Enligt eurokoder
Commissioned for this report is Ramboll, Bridge and Tunnel Unit in Stockholm. Theidea throughout the work has been to primarily help bridge designers compilingadvice and instructions on how fatigue verification for railway bridges in reinforcedconcrete shall be performed under the new rules, the Eurocodes.After the introduction of the Eurocodes in 2011 has major problems emerged amongdesigners around Sweden. In some areas, it differs in the calculation rules comparedwith rules from the Swedish Transport Administration and the National Board ofHousing, Building and Planning calculation. Fatigue verification is one area where thenew calculation rules are different from the past.A large part of the report has been to interpret and find the relevant information inthe Eurocodes concerning fatigue. When questions or doubts have surfaced, this hasbeen discussed with Elisabeth Helsing at the Swedish Transport Administration andbridge designers at Ramboll.The result is a report where the structure is organized in the way that the bridgedesigners can move from cover to cover and realize that fatigue verification in realityfollows the same order as the report's sections.
Flygteknik : Konceptstudie av ett obemannat flygplan
Unmanned aerial vehicles (UAV?s) are nowadays greatly appreciated. The advantage over manned airplanes are great since UAV?s can be much smaller and therefore lighter. The goal of this project is to evaluate the performance of an environmentally friendly UAV using only lithium-ion batteries.
Transporttidsmodellering vid provpumpning i heterogen jord : spårämnesförsök i en isälvsavlagring
When protection zones for wells are delineated, it is important to acquire good knowledge about possible travel time from different points in the catchment area to the well. Often, simple analytical methods are used for estimating travel times and the assumption is made that the hydraulic conductivity is relatively homogenous within the aquifer. Nevertheless, many aquifers are strongly heterogeneous which may lead to differences between estimates and actual travel times. As a part of the process to develop improved methods for delineating protection zones for groundwater supply wells, a tracer experiment was performed in a glaciofluvial esker formation in Järlåsa. On the basis of the experiment, a numerical flow model was created for the test site.The purpose of this master?s thesis was to apply the flow model to an aquifer where the hydraulic conductivity shows great variability and should be described by a stochastic distribution.
Förskolebarns möjligheter till utvecklande av förmågor och problemlösningsstrategier inom Montessori och Reggio Emilia
The comprehensive aim of the essay is to discuss the abilities of developing individual, communicative and cooperative skills, related to The Swedish National Agency for Education, for pre-school children in Montessori and Reggio Emilia-inspired pre-schools. The importance of the choice of pre-school for lifelong learning is discussed and examined. The two educational profiles are presented and the theories of communication, collaboration and individual work are the basis for the analysis of the results. The collection of empirical data is done through observations and interviews with pre-school children. First, the informants construct a fantasy animal on their own and then together with a partner.
Hypotermibehandling av nyfödda barn vid Universitetssjukhuset Örebro
AimThe compulsory school attendance in Sweden means that all children are obligated to go to school. This makes great demands on those who work in the school, especially the teachers. Schools are complex units. In school, teachers face all kinds of ethical dilemmas on a daily basis. The aim of the study is to enlighten how different teachers would act differently, if they were facing the same dilemma in the PE-lessons and why this knowledge is important to our profession.MethodThe data was collected through interviews to make a qualitative research.
Varför väljs nativeapplikationer istället för hybridapplikationer? : Prestandaskillnader hos hybridapplikationer
The development of applications for mobile devices has exploded in recent times. This has also led to the introduction of several new mobile operating systems. To streamline application development for multiple platforms, techniques have been developed to be able to reuse the same application regardless of the operating system. If the same application can be used on multiple platforms it will save both a lot of time and money. Today there are three types of techniques to develop an application; web, hybrid and native application, where the latter is specific to the operating system it has been developed to.
Mode på nätet : En studie om hur nätbutiker marknadsför sig genom bloggar och andra sociala medier
This thesis examines how online fashion retailers utilize blogs and other social media in their marketing process. The study is focused on internet retailer Nelly and how they make use of fashion blogger Kenza in their marketing. Drawing on Kawamura?s fashion-ology theory, the study emphasizes the new role of the fashion bloggers in the fashion system, and illustrates their consumption power vis-a-vis the retailers, the consumers, each other and the whole industry as such. .
ITS och Logistik : Skogsåkeriernas behov av väg- och trafikinformation jämfört med Vägverkets tillhandahållna information
Jag har i detta examensarbete analyserat behovet av väg- och trafikinformation i samband med skogstransporter och jämfört behovet med den information som Vägverket tillhandahåller. Arbetet har utförts på uppdrag av Vägverkets ITS-sektion, den avdelning som ansvarar för Vägverkets uppdrag att öka användningen av IT i trafiken. Målet med arbetet har varit att undersöka hur väg- och trafikinformation kan bidra till bättre skogstransporter och bättre trafik. Syftet har varit att ta reda på hur en perspektivväxling mellan trafik och transport påverkar tjänsteutvecklingen när det gäller väg- och trafikinformation. De metoder jag har använt har varit kvalitativa intervjuer, litteratur- och dokumentstudier samt komponenterna problem- och målanalys i metoden Förändringsanalys enligt FA/SIMM.
WAP's möjligheter och begränsningar
Användandet av mobiltelefoner och antalet personer som surfar på Internet har
ökat avsevärt de senaste åren och för att förena dessa två tekniker skapades
WAP, som kort kan beskrivas som en möjlighet att surfa på Internet via
mobiltelefonen.
Det förutspåddes en stor efterfråga på en sådan här tjänst men något hände. WAP
fick inte så stor genomslag som förväntats. I början var det krångligt att
använda tekniken och det var ont om telefoner och tjänster. Abonnenter
debiteras i dag per minut vilket utgör höga kostnader för den flitiga
användaren. Den tredje generationens mobila tekniker som GPRS och UMTS är under
lansering och förväntas förbättra användandet av WAP.
Laddning av kondensatorbank med flyback-omvandlare
Idag finns det flera olika topologier inom området AC-DC-omvandlare. Framför allt har flyback-omvandlaren blivit en populär topologi inom lågeffektapplikationer p.g.a. dess få komponenter och relativt enkla styrning som gör den kostnadseffektiv.I detta arbete har det undersökts vilka fördelar och nackdelar som finns med flybackomvandlaren för laddning av en kondensatorbank. Detta har utförts genom att bygga en prototyp som baseras på flyback-topologin och sedan jämföra prototypen med ett befintligt system som är baserad på en annan topologi. Jämförelsen tyngdpunkt låg på storlek,prestanda och kostnad.Laddningsförloppet simulerades i MatLab genom att omsätta ekvationer från en grundlig teoristudie till kod.
Bibliotek och bokhandel som litteraturförmedlare: En användarundersökning på ett bibliotek och i en bokhandel
The purpose of this study is to examine what readers of fiction literature are influenced by when they choose books. What libraries and bookstores do to influence readers in their choice of literature and how readers perceive the librarys and the bookstores influence on them in their choice of fiction literature. We have also studied which factors outside the library and the bookstore that readers are influenced by when borrowing or buying a certain book and to what extent readers are influenced by the books appearance. To answer our questions we chose a public library and a bookstore, where we interviewed six persons in each place. We have interviewed a librarian and a bookstore manager for information about how these two cultural institutions work with marketing of their fiction literature.
Romska barn och ungdomars syn på utbildning : En intervjustudie
The purpose of this study is to understand how roman children and young people?s relations are to school and education from a family point of view.I have used a qualitative method and by means of that studied different information sources. I have proceeded from two different theories: culture conception and categorizing. My first theory choice - Culture conception - represents a value of how we see the culture and the prospective of it.My second theory choice ? categorizing ? represents that we humans classify consciously or unconscious ourselves and others into categories, with the consequence that we understand the world by categorizing. Question I have proceeded from are: - Which roll does the family has for children and young persons from roman society? - Which expectations do children and young persons from roman society have from the family when it comes to education? Throughout my study I have come to the conclusion that roman culture looks differently upon boys and girls.
Kundnöjdhet i revision: En jämförelse mellan företag som reviderats av Big Four och företag som reviderats av någon annan revisionsbyrå
The need for auditing originates from the agency problem that arises due to the separation of ownership and control in companies. The purpose of the audit is to increase credibility of the financial statements that management uses to communicate with owners and other stakeholders. In order for the audit to fulfill its purpose a certain level of quality needs to be obtained. The auditor can also be seen as a provider of a commercial service in which service quality is important. Audit quality can thus be separated into technical quality, which is defined as the probability that the auditor both discovers and reports a breach in the client?s accounting system, and service quality, which relates to the provision of services in general.
Fastighetsmäklarens klädsel : Hur påverkar den kunden?
Real estate managers work in a hard branch with big competition and skeptical customers. For most people, buying a property is the biggest private purchase of their lives. This puts a big pressure on the real estate agent to make the process run smooth. But how does the customer know which real estate manager to choose? We have researched what effect the real estate managers clothing has on the customers? first impression and how clothing affects customers? choice of real estate agents.To answer our questions we´ve done 13 projective interviews with ten customers and three real estate agents, where we showed four pictures with the same person dressed in different styles.
Skärgårdsliv för rekreation : En undersökning av möjligheterna till vistelse i Stockholms Skärgård
AimThe aim of this study has been survey the possibilities for short-term stays in the Stockholm Archipelago for people without their own means of transport, own equipment and/or experience of outdoor life.To fulfil this aim, the following questions were formulated:? What communications are available to chalet parks in the Stockholm Archipelago?? What overnight accommodation is available in the chalet parks in the Stockholm Archipelago?? What activities can be pursued in the Stockholm Archipelago?? What is the financial cost of travelling to and staying in the Stockholm Archipelago for a week?MethodWe chose to use six interviews and three observations in order to gain as much insight as possible. Interviews were conducted with Claes Petterson at Waxholmsbolaget, a company that provides transport services in the Archipelago, and with managers for five chalet parks: Rolf Andersson for Finnhamn, Per Englund for Grinda, Arne Johansson for Rånö, Pär Hjärtström and Peter Hösöyen for Gålö and Anders Bedinger for Gålö and Nåttarö. The interviews were recorded in writing and on tape. Observations were carried out at three chalet parks, i.e.