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15664 Uppsatser om Road Safety Management System - Sida 38 av 1045
Termisk hantering av litium-jon- batterier i elektriska drivsystem
The automotive market is currently undergoing a historical change where stricter emission legislations and ever increasing fuel costs have intensified the search for effective alternatives to the conventional internal combustion engine, which has resulted in a substantial trend towards electrification of powertrains. Storage of electrical energy is the fundamental component in this technology where the lithium-ion batteries are currently considered as the most appropriate solution. Lithium-ion batteries, however, as other types of batteries, can only be used efficiently and durably within a specific temperature range.This Master thesis has been carried out in collaboration with Electroengine in Sweden AB, situated in Uppsala, which has an ongoing project regarding development of a modular battery system for electric powertrains. The project is at a stage where an initial prototype has been developed which provides the foundation for this thesis. The study has addressed the battery system performance from a thermal perspective, in order to validate the ability of the system to create a thermally serviceable environment for the lithium-ion battery cells.
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..
Talent Management- hur fungerar det? : En kvalitativ fallstudie om hur Talent Management kan se ut och uppfattas i en organisation
Detta examensarbete underso?ker hur en multinationell organisation arbetar med Human Resources Management-fenomenet Talent Management. Vi har valt att titta pa? fenomenet fra?n tva? olika perspektiv, det individualistiska och kollektivistiska, fo?r att skapa en fo?rsta?else om hur Talent Management-arbetet fungerar och kan se ut. Den insamlade empirin a?r baserad pa? sju intervjuer med individer som alla har en relevant roll i fo?rha?llandet till det studerade fenomenet.
Sjuksköterskors upplevelser av arbetsrelaterad stressoch faktorer som bidrar till arbetsrelaterad stress : en litteraturöversikt
Background: Long-term stress can lead to reduced health among nurses which can result in impaired quality of care. Stress in nurses' work needs to be studied in order to prevent stress and impaired quality of care. Aim: The aim of this study was to describe nurses' experience of occupational stress and factors that contribute to occupational stress. Method: The method used was a literature review. Results: The analysis resulted in five themes which describe nurses' experiences of occupational stress and factors that contribute to occupational stress.
IT-stöd för riskhantering : En studie av risk och kvalitetsarbete vid ZERT AB
This paper presents a project and literature overview about how risk management and quality sometimes goes hand in hand and sometimes in two different directions. Meaning that the risk management can affect product or process quality differently depending on what risks an organisation chooses to control.The purpose with this paper is to get a deeper understanding about how risk and quality works together with IT-support and therefore we have been actively participating in a project with a risk management company called Zert. A literature study and a qualitative interview study have also been undertaken to see what the customers and the other researchers have written, to be able to make proper conclusions on the subject.To easily work together and get the information that was needed, four methods where used. Besides the qualitative interview and literature study the think-out-loud, card sorting and a variation on the extreme programming method where used to help visualize and improve communication both with Zert, the costumers and among ourselves.Zert is a risk management company that helps other organisations to control their different types of risks that they might be taking, by offering a system where the risk management process is held and providing consulting services by helping within the processes. Both Zert and their customers see the communication, knowledge and teamwork as something important as well as the quality within the work, processes and the end result.
Upp eller ut? Ut tack!: En studie om frivillig personalomsättning på managementkonsultfirmor
The purpose of this thesis is to understand the reasons to why management consultants choose to leave their positions at large and established management consultant companies. The empirical data are made up of eleven interviews with men and women, both management consultants that have left their previous positions as well as a consultant who has chosen to stay with her first company and a representative from one of the large companies active within the management consultant industry. We have used the Job Embeddedness Theory combined with theories about identity, legitimacy, institutional norms and gender in order to understand the thoughts and reasoning behind the management consultants´ resignation. We have found that issues with the work itself and characteristics of the industry prevent the management consultants from being embedded within the management consultant company. Rather, some of the characteristics of the industry such as ?up or out? and the need to constantly perform work as a ?pushing-out mechanism?.
Vilka faktorer påverkar att en avvikelse rapporteras eller ej? : - en intervjustudie med sjuksköterskor
What affect if an incident is reported?- an interview study with nursesABSTRACTEveryday in health care, there are incidents which can harm patients. However, reporting these incidents is not always a positive experience. The number of incident reports which are documented are a lot fewer than the number of incidents that actually occur. The purpose of the present study was to describe factors that affect nurses? decisions on whether to report an incident or not.
OESP-paradigmet som ett komplext adaptivt system
Problem: Under senare år har mer organiska idéer präglat det strategiteoretiska tänkandet. En ansats till att dels vidareutveckla de organiska tankegångarna och dels sammanföra rådande strategiparadigm till en enhetlig modell har gjorts av Farjoun (2002). Modellen som blev resultatet kallas OESP-paradigmet och bär med sig likheter med vad som kallas ett komplext adaptivt system. Men genom att anta OESP-paradigmet som ett komplext adaptivt system följer också vissa implikationer. Dessa konsekvenser förklaras med hjälp av delar från komplexitetsteorin.
Talent Management : Möjlighet eller hot? Sett ur HR-anställdas perspektiv.
The purpose of this study is to contribute with new knowledge of how Talent Management can be seen as a an opportunity or threat for organizational development, concerning competence, on the basis of HR. The research questions asked are: Out of wich aspects can Talent Management be seen as an opportunity or threat on the basis of HR-employees? How can it affect the work of HR? To answer these questions qualitative interviews with five employees within HR from four different companies has been executed. The essay has been investigated on the basis of an explorative aim and with a qualitative method. The empirical results has indicated common themes such as director support, HRs view of Talent Management, HRs development and shifts of generations.
Konkurrensutsa?ttningen av den svenska ja?rnva?gen och New Public Management : En problemrepresentationsanalys
The aim of this study is to investigate the problematisation of the swedish railwaysector during the early 1990?s from a New public management-perspective. The method of approach is a ?What is the problem represented to be?-analysis as advocated by Carol Bacchi. By applying this method to the official investigation aimed at providing suggestions for increasing competition in the railway sector it has been shown that the process of deregulation has strong connections to the ideas and models suggested by the New public management-ideology of organisational theory. .
Den informella organisationen : Jämställdhetsutredning inom bank-och finansbranschen
During the autumn of 2007 I carried out an investigation within the bank and finance Sector. The aim of the investigation was to see how informal aspects could be understood in relation to equality within Bank AB? The main question was: Which are the obstacles and opportunities for equality within Bank AB? To answer the main question I asked the following questions to the material: Are there any gender related different within the organization? How are men and women represented within the internal magazine? Which are the conceptions related to sex/gender within the organization? The investigation is based on a survey, the internal magazine was investigated and finally interviews took place. Throughout the investigation I used organization theory in a gender perspective. With the gender organization theory I examined concepts as structures, leadership, symbolism and changes associated with equality.
Sociala medier för Knowledge management : Företags användning av webb 2.0 baserade kollaborationsverktyg för kunskapshantering
Knowledge is today one of the most important resources for an organization to handle. But knowledge can also be difficult for organizations to manage. The internet is still growing and new tools take form that allows users to effectively share information. The purpose of this report was to describe how organizations can make use out of internal social media to facilitate knowledge management processes. Three issues involving mapping, coding and dissemination of knowledge to were produced to answer the thesis. The study was limited to examining the identification, coding and dissemination of knowledge through the internal social media plattformen, IBM Connections. The theoretical framework emphasizes how social networks can promote knowledge sharing, how a knowledge mapping can promote knowledge dissemination and sharing, how knowledge can be stored in data sources and how important interaction is to spread awareness. The theory has been supplemented by descriptions of how the system IBM Connections works. Surveys were conducted on four companies that use IBM Connections as an internal communication plattformen. The four companies were selected to illustrate how they use the plattformen of knowledge management processes and we chose to interview the people who were responsible for the introduction of the plattformen. The study identified several similarities between the different companies and that although there were some technical and cultural recalcitrant units against this new type of system within the organization so favored IBM Connections knowledge in several ways. The built-in search automatic created a map of knowledge through the plattform's user profiles. Saved files and documents could be found even after the employees left the company, which encodes knowledge into the company knowledge resources. The opportunity to interact with one another, often over great distances, favored the sharing of knowledge. A comparison with the theoretical framework provided us with the conclusion that internal social media can be used in several ways to Knowledge management through automated knowledge maps, the ability to store knowledge within the company and to communicate knowledge across functional and geographical boundaries in interactive discussions..
Flödesekonomins dimensioner : supply chain management
It is of increasing importance to in the most effective possible way, manage and control all the transactions of raw materials, products and information that are exchanged between an organization and all its operators. These flows and the need for strategy and managing the processes of planning, implementing and control of the supply chain, has given name to the concept supply chain management. Supply chain management involves all movement and storage of raw material, and all the processes that is needed to manufacture a product from origin to consumption. Globalization, technology and increasing time and quality-based competition are all driving forces behind the concept and reasons for an increasing interest in supply chain management.The purpose of this essay is to by using a qualitative case study examine which decisive success factors that can be identified for effective supply chain management. We have compiled different theories on the subject to use for analyzing a case study Li & Fung, who is a successful supply chain management company.
Byggprojektstyrning med Earned Value Management
AbstractToday, too many construction projects are delayed and deviates from the budget. Agood project management is the basis for successful construction project. The mostcommon planning methods in the construction industry is currently Gantt chart andCPM. The problem with these is that focus is only at the time of the project anddoesn?t handle the budget.
Operatörernas attityder till säkerhet på finlandsfärjorna
Passagerarna behöver mera tid än säkerhetsinformation eftersom passagerarna har så bråttom att komma ombord, boka bord och handla tax-free. Därmed missar passagerarna viktig säkerhetsinformation som alltid ges vid avgång via fartygets högtalarsystem. Det finns klar och tydlig säkerhetsinformation ombord. Det viktiga är sättet att ge information än att ge mera information. Idag informeras passagerarna via videoskärmar, utrymningskartor på hyttdörrar, via högtalarsystemet ombord, säkerhetsbroschyrer i hytter och information, välutbildad besättning och det är väl skyltat ombord.