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4297 Uppsatser om Critical IT systems - Sida 33 av 287

Energioptimering : Resteffektkylning av mellanlager för använt kärnbränsle (CLAB) Oskarshamn

This thesis is done in cooperation with SWECO Energuide in Växjö. They have been assigned by SKB in Oskarshamn to renew their electrical power supply and the ancillary processing systems in their Central provisional storage of spent nuclear fuel, CLAB. Today in the CLAB facility, the spent fuel is cooled down with water pumps, driven by asynchronous induction motors, where the water is regulated by mechanical valves to the desired flow. After the upgrade, the engines will be powered by AC drives that can control the pumps by changing the rotational speed and thus change the water's cooling effect on the nuclear fuel. In this study, I investigated the interference AC drives causes the feeding network and how to go about averting them.

Identifiering av det logistiska förpackningssystemet En studie av teleutrustningsindustrin

Background: Due to outsourcing, the material flows in the telecom equipment industry have undergone major changes, which in turn has imposed new challenges for packaging supplier Nefab who delivers to the industry. In order to achieve market intelligence, Nefab wants to map the material flows, and investigate possibilities of further reusable logistical packaging systems.Purpose: The purpose of this thesis is to describe the typical features of the logistical material flows in a technically based, rapidly growing industry, and analyze the driving forces and obstacles, which influence the selection of logistical packaging system. Procedure: After developing a theoretical framework consisting of general logistical theories and theories related to logistical packaging, we have interviewed companies in the logistics channel of Ericsson Radio Systems.Results: We have found the main characteristics of material flows in our investigated industry to be Variations in Demand, Focus on Time-to-Customer, and Globalization of Logistics Channels. Regarding driving forces and obstacles in the selection of logistical packaging systems, we have identified Transportation Characteristics, Customer Demands, Quality, Handling & Administration, and Current Packaging System as important factors..

Projektstyrning av IT-projekt : En jämförelse av projektstyrningen av två IT-projekt

Course: Master's Thesis in Business AdministrationPurpose: The purpose with this paper is to give an insight, and to compare, the project management of two IT-projects ? one which product was implemented and put into use, and one, which was implemented but no longer exists on the market. Furthermore also examine the critical success factors that influence the success respectively the failure of the IT-projects. Method: To attain the purpose with our study we have chosen a qualitative method. We have carried out interviews with two of the project managers of the IT-project of the two large companies.Result: A couple of problems occurred within the IT-projects of the large companies.

Probleminventering av några forskares informationshantering : En fråga för biblioteket?

The aim of this Master?s thesis is to investigate if the library can be a real partner for researchers in managing and dealing with their research information. In this study, six researchers have been interviewed about their problems with information management. This study uses the method Critical Incident Technique for the interviews with the researchers. This method focuses mainly on problems and what happens around those problems.

Arbetsmätningssystem på Scania Vehicle Service Information : En analys av nuläget samt framtagande av rekommendation för framtida utveckling

Scania CV is one of the world's largest truck manufacturer. It is not only the directproduction of vehicles and methods that are important for Scania but also the servicemarket handling spare parts, repairs and workshops. The department Vehicle ServiceInformation construct standard times through work measurement for particularworks in the workshops. The software application STAM is used in the servicemarket to create and store standard times which then are exported to theworkshops' own systems.The purpose of this master thesis is to analyse and evaluate the internal workmeasurement system that includes standard times and the software STAM. Also,based on external analysis and benchmarking of other systems suggest appropriatefuture development within the area for Scania Vehicle Service Information.In order to perform the investigation, interviews and studies have been doneinternally at the departments that are involved in work measurement as well asexternally at Scania workshops.

Elektronisk motorstyrning för ottomotorer

The combustion engines in today?s vehicles are getting more and more advanced and there are increasing demands on that the engines should operate during optimal conditions. Examples of internal combustion engine parameters which may be carefully controlled are the rate between fuel and air, that this gas mixture is homogenous enough and that it is ignited at the correct moment. Moreover, the requirements of these parameters vary depending on, among other, engine speed and load. To meet these requirements in all occurring operation conditions, it is required that many subsystems work together.

Industriella kundrelationer i teori och praktisk tillämpning

The purpose of this master?s thesis is to contribute to the development of business relationships between a supplier and its customers. The research area and research problem was further developed into three research questions. The research questions concerns the following subjects: the substance of business relationships and dimensions within relationships management that can be used in order to contribute to the development of a company?s business relationships.

10 000 nya invånare till Luleå! : En studie om en kommuns platsmarknadsföring i sociala medier

Today, nine out of ten municipalities are active on social media and it has become increasingly popular among municipalities that make use of placemarketing to promote their particular region. A problem that is raised in this study is that the population of the municipalities in northern Sweden often is in decline. The purpose of this study is to investigate how a democratic-controlled organization such as Luleå Municipality uses the social media Facebook in its placemarketing, to highlight a place of scale and to attract new residents and stakeholders to move to or visit the city. In order to answer the purpose I have with the help of a critical discourse analysis examined how Luleå Municipality using social media Facebook in their marketing of Luleå as a place. The results were then analyzed using theories of placemarketing, Norrland and the market-oriented municipality.

Etnicitet ur sportjournalistikens perspektiv : En kritisk diskursanalys av skildringen av idrottsmän i svensk media.

The aim of this study is to explore how sports journalism can include and/or exclude athletics from a national community. This study put emphasis on finding patterns from articles by Swedish sport media on non-ethnic Swedish athletics. The theories central to this study are ethnicity and nationalism, as these concepts contain reflections on why certain groups of people are excluded and/or included. Norman Faircloghs critical discourse analytical model has been selected for the study method that analyzes texts in three levels: the text level, discursive practice and social practice. Four non-ethnic Swedish athletes have been chosen to explore how they were portrayed in the media.

Soil carbon, pH and yield development in a long-term humus balance trial

Agriculture has to be performed in a sustainable way in order to sustain high yields and to support a globally growing population. Functional soil properties are fundamental for high yields and in order to achieve good soil conditions sustainable management is a key. Loss of soil organic material and increased soil acidity are problems associated with degradation of soils and hence less sustainable agriculture. In this thesis, the effect of different agricultural systems on soil organic matter, pH and yield was examined. The systems examined are a cereal system with straw removal or returning and a ley system, all with different nitrogen levels.

Åsktransienter och överspänningar : En spänningsfylld simulering av elkraftsystemet vid Forsmark 3

A power system will inevitably be subjected to transient overvoltages, most often produced by switching operations and lightning strikes. These transient overvoltages may harm sensitive equipment without sufficient protection, but it is not an easy task to predict what transients may occur or how they affect the system. A fault occurred in a low voltage system at Forsmark 2012 and overvoltages from lightning were concluded as the probable cause. The three aims with this thesis are to develop and test a model of the power system at Forsmark 3, analyse the transient behaviour of the system when subjected to lightning surges and identify critical parameters, and lastly to provide a tool for investigating the protection of the system. The modelling and simulations were performed in the freely available simulation program LT Spice.

Remburser och andra säkerhetsarrangmang vid internationell handel

AbstractWe live in a world today that is characterized by the Internet. We can get hold of people on the other side of the globe whenever we want and we can purchase what ever we want, from who ever we want, anytime we want. This development has made it important to find systems of dealing with the payment in a safe and secure way, both for a private person as well as for a company, when you do transactions with people far away, and those systems is the core of this essay. As a private person you sometimes need to transfer money to family members who live abroad and you can then use clean payments. This means that banks all over the world has systems which makes it easier when their customs wishes to transfer money abroad.

Att "segla och navigera" med barnen : En lärares livsberättelse.

Vi har i detta arbete valt att djupintervjua en erfaren lärare och ta del av dennes livsberättelse. Den lärarforskning som bedrivits har i många fall fokuserat endast på lärarens praktiska arbete. För att förstå undervisningen till fullo, är det av vikt att också veta någonting om personen bakom arbetet, detta med tanke på att en persons erfarenheter sätter prägel på undervisningen. Vårt syfte med detta arbete har varit att genom livshistoriemetoden få förståelse för vilka avgörande händelser (så kallade critical incidents) som påverkat en lärare under dennes lärargärning. För att uppnå vårt syfte har vi använt oss av en kvalitativ ansats, där vi valt att observera och intervjua den berörda läraren.

Om patientföreningar och kunskapens kärna En kritisk realistisk studie av patientföreningar, diagnoser och vetenskap

Aims: Patient associations have been around for some time and research has shown that such associations can influence society, politics and how diagnoses are thought of. This study is a comparative analysis of two patient associations in Sweden. The first association called Attention represents people diagnosed with neuropsychiatric disorders such as ADHD. The other association called RSMH represents people diagnosed with mental illness such as depression. The aim of this study is to explore the social and political agenda of these associations and to explain their relation to biological, psychological and social models of explanation.Method and theory: The method used was a qualitative document analysis using documents produced by the associations themselves as well as documents from media and politics.

När kan Tanzanias fattigdom elimineras? : En analys av bistånd, tillväxt och fattigdom

The aim of my thesis was to examine if educators need to be critical of what they read to the children from a gender perspective. I examined how picture books depict gender and if the books enhances or breaks perception of gender roles. I also examined educator?s perception of gender and if they think picture books can affect children?s perceptions of gender, but also what educators think about gender equality through picture books. The study is based on analysis of five picture books and interview with five educators.The results of analyzes showed that picture books are stereotyped and enhances perceptions of gender roles.

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