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10844 Uppsatser om Electric power system - Sida 34 av 723

Implementation av ett Content Management System

Under de senaste åren har webbplatser blivit allt mer komplexa och informationen som ska visas och hanteras allt större. För att underlätta hantering och administration av dessa system har många CMS-system vuxit fram. Dessa system kan skilja sig mycket beträffande pris och funktionalitet, allt från mindre open source system till stora komplexa kommersiellt drivna system. Detta arbete bygger på att skräddarsy ett CMS-system för administration och hantering av innehåll på diverse artist sidor, som hanteras av ett medieföretag. Systemet använder tekniker som JavaScript, PHP, MySQL som grund för dess uppbyggnad.

Övervakning för DC-system

Examensarbete har utförts för AIAB DC Systems i Karlstad.Vår uppgift gick ut på att göra ett övervakningssystem för DC-system. Enheten skall användas för att övervaka isolerade DC-system avseende spänningsnivåer och isolation samt larma vid fel. Tidigare har man haft ett analogt system ute på marknaden men nu vill man ha ett digitalt processorbaserat system.Vi har använt oss av en 8-bitars RISC-processor. Programmeringen har gjorts i assembler med hjälp av ett utvecklings-kit och sköter logiken för övervakningen. Programmet manövreras med två tryckknappar och en display.Programmet vi har tagit fram behöver kompletteras med vissa funktioner.

En vindkraftparks inverkan på Gävle Energis elnät

The effects from a planned wind farm on the grid utility Gävle Energis electrical grid have been studied. The wind farm is planned to be built in the forest 15 km north of Gävle and will have 23 turbines with rated power from 2 to 2.5 MW, resulting in a total installed power between 46 MW and 57.5 MW. The grid connection will be made at 70 kV. The aim of the analysis was to determine what effects the wind farm would have on the power grid in the form of electrical disturbances (flicker etc.), need for new investment and raised operational cost. To allow the connection of the wind farm technical solutions (new lines, power stations and grid reinforcements) have been constructed.

Analys, design och implementering av Orbit ones dokumenthanteringssystem

This report describes the development of a system for controlling documents. The report starts with a problem description which the company wants an intranet-based solution for. The report then continues to describe the development phase for the different parts of the system which results in a complete system. The company that wanted this system is called Orbit One and is located in Ronneby, Sweden. They have had a problem with old documents circulating in different versions and in different binders. Now thanks to their new system they can access their documents easy and on demand through their intranet..

Momentum : att utmana basens roll i en ensemble

Fokus på basens roll i musik. Hur används instrumentet i ensemblen? Vad händer om basens roll utvecklas och hittar nya ytor i gruppen? Ett arbete om skapa musik med influenser från jazz och fusion som sätter basen i nytt ljus..

Sveriges och Europeiska Unionens biståndspolitik : En jämförande idéanalys ur ett postkolonialt perspektiv

The main aim of this study is to examine the development policies of Sweden and the European Union from a postcolonial perspective. Sweden and the European Union are increasingly coming to be viewed as normative powers rather than military powers. So how does the colonial past of the western societies affect the policies of today? Are there any signs of the power structures of the past, and if so, how are these power structures manifested in the development policies of today? Since both Sweden and the European Union have come to be viewed as normative powers they are compared with each other to highlight their similarities and differences. The results of the study shows that both Sweden and the European Union can be seen as carriers of western values and interests.

Acceptansgränsen för solceller i lågspänningsnät : Kan den ökas?

Microproduction, also called distributed generation, is something that has become more and more popular in the electric grid. Microproduction can however lead to unacceptable performance if several units are installed in the same low voltage network. It is therefore good to know a limit where the performance of the low voltage network becomes unacceptable based on given parameters. This limit is usually called hosting capacity.In this report the hosting capacity with respect to voltage and current have been studied in three low voltage networks which are located in Falu Elnäts concession area. This has been done by simulations in a GIS-program where critical times of the grid have been simulated.

Systemutveckling med avseende på systemförvaltning

This final year project is dedicated to investigate the problem domain of system maintenance management. The purpose is to find problems in the system maintenance management of today. Whether there is any problem that can be elicitated in the requirements engineering?s phase that could help to obtain more maintenance management friendly systems and if it is not possible to obtain more maintenance management friendly, what else can be done?It has been learned that there are many problems today in the problem domain and the most great ones are the system documentation, stress and a systemknowledge lack among developers, system managers and system users.The requirements that have been found for this problem is good documentation, and use of simple solutions in the creating of the system..

IT-systemsutvärdering för konsultverksamheter Vid val av nytt system att sälja

Konsultverksamheter har idag en stor mängd system och leverantörer att välja mellan vid val av att bli återförsäljare till ett nytt system. Denna mängd av system kan vid vissa tillfällen ställa till osäkerhet i form av vilket system som passar bäst in i verksamhetens portfolio. Genom en effektiv utvärdering kan dock detta avhjälpas och det system som passar bäst för verksamhet väljas. Uppsatsen bygger på en kvalitativ litteraturstudie där också en intervju utförts. Vidare har de teoretiska utgångspunkterna hämtats utifrån modeller såsom Standardsystem i Verksamheter och Välja och Förvalta Standardsystem. Dessa modeller ligger sedermera till grund för den modell som presenteras i uppsatsen och förenklar konsultverksamheternas problematik med att fatta ett genomarbetat val av system till sin portfolio..

Mek Stans 07

Mek Stans 07 is a machine developed for Tetra Pak in Lund as a 10p candidate theses project at Halmstad University. The commission behind the project involved development of a machine that punches holes in packages for the inspection division at Tetra Pak. The task for the machine was to facilitate the process of making openings for testing in the company?s other equipment. Researches on different methods of cutting, types of automatization and possible designs were made. To implement the project a design and construction from the base where chosen.

Systemutveckling i praktiken : konsten att tillmötesgå den okända användarens krav

ABSTRACT System development has become more and more concentrated on development for the Web and this has resulted in larger target groups. It will most surely continue to be so considering that the Web will be the infrastructure of business and services in the future. A big target group involves that the owner of a system can earn a lot of money from the paying users, but that assumes that the system can meet user needs. If a system on the Web does not satisfy the user?s demands then they will use the competitor?s system instead because it is only a mouse-click away.

Lärares förhållningssätt till demokratisk undervisning och sin egen maktposition i undervisningsarbetet

The aim of this paper is to examine how teachers experience their possibilities to develop democratic teaching in high school and how they reflect upon their position of power within the teaching situation. Four professional high school teachers have been interviewed for the study. The theoretical perspective of the study is an intersectional view on power and a view on democratic teaching which is partly built on the high school curriculum, but mainly defined by deliberative conversations, anti-oppressive education and norm-critical education. The result of the study is focused on three themes, which were shown in the analysis of the interviews. These themes are: choices of teaching content,  authority of the teacher and democratic teaching.

Samverkan mellan skola och socialtjänst : en studie av hur skolpersonal ser på samverkan med socialtjänsten

The purpose of this report was to increase knowledge regarding the co-operation between social services from the perspective of employees at a school. The focus was on the question: ?In the schools view, what is the relevance of co-operating with social services?? The problem was divided into three categories; the value of the co-operation, the schools discourse on co-operation and the balance of power in the co-operation. The scientific topic was addressed using a qualitative survey method at a school. Four people were interview; the principal, the welfare officer, and two teachers.

Mätningar och analys av elnätet hos FHP, Basproduktion

This report is a degree project performed at Freudenberg Household Products AB, (FHP). The degree project comprises measurement and analysis of the power net at FHP Basproduction. The content is divided between one theory-part, one document- part with measurements and also conclusions and a list of measures to be taken. During the project the purpose and restriction change from a quality investigation to only concentrate on harmonics and finding the reason why they exist, and also to find a solution to the problem with harmonics. The measurements shows that the power net contains harmonics of different order and intensity.

"Den Andre" och skapandet av en identitet En teoretisk studie av begreppsliggandet av "den Andre" och dess påverkan på identitetskonstruktioner

The aim of this theoretical study is to explain how the notion of the Other and Otherness affect individuals possibilities to form multiple, personal identities. This is done by the use of the theory of the Other and the construction of identities. In my analysis I will be using the power perspective presented by Lukes. The purpose of my study is also to investigate whether a focus on similarity over difference between groups can change the situation for individualsMy study shows that otherness affect individuals identity constructions through stereotyping and categorising. This is made possible by the use of power from outside and inside different groupings.

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