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1466 Uppsatser om Electrical Engineering Programme - Sida 3 av 98

Konceptstudie av eltransmission för 8-hjulsdrivet fordon

SEP Modular Armoured Tactical System is the next generation of military vehicles developedby BAE Systems Hägglunds AB. At present time, BAE Systems Hägglunds AB aredeveloping a 6-wheel electrical hybrid and a conventional 8-wheel vehicle. The questionformulation was summarized as: ?In which ways can the electrical transmission in a hybriddriveline for SEP be designed, when the surrounding fixed interfaces are kept and the unity ofcomponents within SEP is maximized??. The purpose of this master thesis was to study avariety of concepts for hybrid propulsion.

Magnetfält alstrade kring nätstationer i samband med lokaldistribution av elkraft : Magnetic fields generated by electrical substations during distribution of electric power

Abstract: This report covers primarily the work of documenting electromagnetic fields generated by one of the later parts in the electrical power distribution chain: The electrical substation, wherein 10 kV is transformed to 400 V for use by private consumers. Thus it is one of the most widespread and frequently occurring parts in the Swedish power grid and of particular interest, as electrical substations are found everywhere in populated areas, often in close vicinity to people and animals.The report deals with a number of formulated questions and/or hypothesis? stated at the onset of the work undertaken, theory that is relevant for the topics the report covers, the details of the field work undertaken and the following analysis of the readings, which in term provide answers for the questions stated in the beginning. It also covers what is the currently known short term and long term risks associated with electromagnetic fields in the power frequent spectrum and of varying intensity in the vicinity of humans.The analysis also provides recommendations and identifies several points to carefully consider when planning for new installations or replacements of some parts of existing installations.For enhanced reading comprehension there is, aside from sections with pictures and attached explanatory texts and templates, several graphs, one-line diagram and maps of the power grid among the appendixes to the rapport..

Köldbryggor och energiförluster. En studie om energiförluster genom balkonginfästningar och deras betydelse för byggnadens totala energibehov

In this report the balconies? abutments for a property in Bo01-area in Malmö has been studied. The property which is called Vitruvius contains four build-ings where two of them have corbelling balconies with intermittent abutments. With intermittent abutment means that the 50 mm thermal bridge insulation that the balconies is equipped with, is broken regularly by a 300 mm concrete heel. The reinforcement bar that holds the balcony runs through this heel.

Infärgning och samarbete på El-programmet : staining and cooperation in the Electrical program

This work is about collaboration and staining in the upper secondary school Electrical program. How should the coloring go to in order to increase students' motivation and thus facilitate students' learning is the main subject with the work. The study has shown that there is a functional co-operation today, and that students believe that if the cooperation would increase. It would also in-crease their motivation to improve..

Pedagogers tankar och arbetssätt kring elever med koncentrationssvårigheter

The purpose of this thesis is to find out if principals and teachers have experience, expectations and thoughts about the differences that the new Education Act means in relation to the old one about action programme. Through qualitative interviews with two principals and four teachers, I have tried to answer my research questions that I have made based on the purpose. The questions are: How do the interviewees describe the routines about action programme?  Has, according to the interviewees, the routines been changed with the new Education Act? How do teachers and principals experience the differences between the old and new Education Act regarding the action programmes?The results of my survey shows that the process of action programme is different at different schools and that it has been adapted to the new Education Act in varying degrees. These results give differences in the experiences of the new directives.

Rällsögårdens missbruksprogram : En studie om klienter och personals erfarenheter av programmet och dess genomförande

The aim is that on the basis of interviews with personnel and clients examine whichexperiences they have of the drug abuse programme and its implementation. To be able toanswer the aim following question has been formulated: (1) What do the personnel and clientthink about the drug abuse program arrangement? (2) In which extend is the programimplemented as thought? (3) How do the personnel assesses the client?s participation? (4)How does the client?s think about their own participation in the program? (5) Do the client?sthink that the program have been helpful in their personal development? A qualitativemethod was chosen and has used a semi structured interview. Total has ten interviews beenimplemented on Rällsögården, five with clients and five with personnel. The study'sinterpretation framework builds on research around drug abuse treatment and theories andmethods that lie to shallow for the drug abuse programme.

Åtgärdsprogram i nya skollagen : Några lärares och rektorers erfarenheter, förväntningar och tankar

The purpose of this thesis is to find out if principals and teachers have experience, expectations and thoughts about the differences that the new Education Act means in relation to the old one about action programme. Through qualitative interviews with two principals and four teachers, I have tried to answer my research questions that I have made based on the purpose. The questions are: How do the interviewees describe the routines about action programme?  Has, according to the interviewees, the routines been changed with the new Education Act? How do teachers and principals experience the differences between the old and new Education Act regarding the action programmes?The results of my survey shows that the process of action programme is different at different schools and that it has been adapted to the new Education Act in varying degrees. These results give differences in the experiences of the new directives.

Westhelicopter AB Aircraft Technical Status Report

Westhelicopter INC. has an aviation workshop providing qualified helicopter maintenance in accordance with PART-145. Maintenance and administrative base is situated in Luleå at Kallax airport. The types that Westhelicopter INC are currently authorised to service are: Eurocopter AS 350 Base/Line Maintenance, Eurocopter EC 120 Base/Line Maintenance and Robinsson R44 Base/Line Maintenance. The thesis work has been to make new maintenance programme for Westhelicopter INC. This maintenance programme will be used to follow-up the time of the components, service bulletins and ADs.

Reverse Engineering : En jämförelse mellan företag och forskare

Användning av mjukvaruverktyg när reverse engineering utförs är ett måste för att få ett användbart resultat enligt Hainaut (2002). Kudrass m fl (1997) visar på brister som kan uppstå när mjukvaruverktyg används. Gemensamt för de forskare som har studerats i detta arbete är att de hävdar att företag saknar kunskap för att utföra reverse engineering med mjukvaruverktyg. Har forskarna rätt i att det saknas kunskap eller har företagen mer kunskap än vad forskarna tror? Då dessa forskare har en klar koppling till tillverkning av mjukvaruverktyg så är eventuellt inte deras påstående opartiska och därför är det intressant att se om deras påstående stämmer med verkligheten.

Språkstöd i distanslaboratoriet på BTH

To study and laborate at distance, its necessary that the coursematerial is accessible via internet. Teaching at more languages than swedish bocomes more common, why the information of courses needs to exist at several languages. As teacher, you need a way to publish and edit material of a course. It also has to be easy for the students to find the information. The distance laboratory have developed an administrative websystem that handles programme, courses and students, but misses the possibility for teachers to change content at the webpages and publish new coursematerial on a way..

Simulering av elektriska förluster i en vindkraftpark : Utveckling av programvaran Wind Farm ElectricSystem Calculator (WFESC)

When planning new wind farms, the cost for the internal electrical grid is estimated to account for 8-9 % of the total investment cost. On top of that, the cost for accumulated reduced income over several years (due to electrical losses), has to be added. The economic lifespan is relatively long (about 20 years) which means that an error in the loss calculation could lead to a bad decision basis. The accumulated reduced incomes due to electrical losses can be higher than the initial investment cost for the internal electrical grid.Today, Statkraft Sweden is using a template number when estimating the electrical losses in a wind farm. The actual losses are probably lower than the template number which could lead to an unnecessary high loss cost when planning a new wind farm.The aim of this M.Sc.

Framtidens driftcentral : En analys av den framtida driften av ett svenskt elna?t

Active work to increase the efficiency of energy use is taking place in Sweden and throughout all of Europe. Electricity is an important part in our society?s energy system which means that the electrical grid operators and associated therewith has a central role in this work. Monitoring and controlling the electrical grids are managed from the distribution system operator?s DC, dispatch center.The aim of this report is to examine how the operations in a typical DC on the Swedish electricity distribution network will look like in five to ten years.

Behovsstudie för implementering av ett informationshanteringssystem i el-utvecklingen på Volvo Car Corporation

VSEM project and the need for a more efficient way of handling requirements andinformation are highly apparent.The overall objective of this thesis is divided into two parts:1. To identify criteria/factors leading to a successful introduction of an informationmanagement system.2. To develop an implementation process for a requirement management system ?the first step towards a PLM system in EE development at VCC.This will be done through interviews with employees, a literature review and an analysisof studies of three earlier projects within VCC.The conclusion of this study shows the great need for change in work methods fordesigners handling information and requirements. An implementation process has beenidentified with guidelines on how to handle different phases of the process.

Ultraljudsmätare för bubbelfälla

This bachelor thesis is about an ultrasonic sensor, implemented in a bubble chamber in Artis. The sensor consists of the piezoelectric sensor and an electronic control circuit. The control circuit consists of a programmable microprocessor, PIC18F2420 and a circuit, which sends the excitation signal to the piezoelectric sensor, and later receives the echo. This bachelor thesis consists also of a theoretical study, which examines different techniques of liquid level sensing in a chamber. The study discusses which factors are important in liquid level sensing and examine accepted methods.

Rocksmak i rockutbildningen - populärkultur, smak och repertoar inom en utbildningsinstitution

Titel: Rockmusic preferences in the rock programme. Popular culture, music preferences and repertoire inside a teaching institution. This paper raises some questions about the popular music that exists outside as well as inside institutions. From the example of popular music and rockmusic the students of a music teacher education programme based on rock music are asked for their taste for music in a brief questionnaire. The answers are compared to those concerning the music they used to like before they entered the education as well as the music played on the ensemble lessons at the programme.

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