Sökresultat:
8597 Uppsatser om Power quality problems - Sida 33 av 574
Making Money in a Dirty Business
Academic research concerning how to determine the power situation in a supply chain where an investment product supplier is involved did not exist. Therefore new models has been developed that analyses the power relations and maps out the power situation in a supply chain. In the future these models can be applied on similar cases by modifying the included parameters. The new models show that case company FAS should focus on the big producers of garbage bag which are Trioplast, Rullpack and Miljösäck. By strengthen the brand FAS can make more money in these relations.
Validering av vattenkraftmodeller i ARISTO
This master thesis was made to validate hydropower models of a turbine governor,Kaplan turbine and a Francis turbine in the power system simulator ARISTO atSvenska Kraftnät. The validation was made in three steps. The first step was to makesure the models was implement correctly in the simulator. The second was tocompare the simulation results from the Kaplan turbine model to data from a realhydropower plant. The comparison was made to see how the models could generatesimulation result that was similar to the reference power station.
Utveckling av en ljudsimulator med anva?ndarcentrerad design : Tilla?mpad matematik fo?r ba?ttre konsertupplevelse
The company Sound Precision has developed a new Line Array loudspeaker system (VHA-40). When using this system, their customers need computer aid to get the best possible sound-quality and control of sound levels for the whole audience. The aim of this thesis is to develop a truly useful sound quality simulator for the VHA-40. The system will help the sound engineers to position the loudspeakers for optimal sound by simulating loudspeaker configurations and visualizing the resulting sound quality and quantity. To solve this a human-centered design (HCD) approach is taken to implement a system that is truly useful for the users, meaning that they will use it more and hence deliver better sound for the audience.
Portal till det förflutna : en arkeologisk kvalitetskontrollerad ämnesportal som resurs för universitetsutbildning i Lund.
The purpose of this essay ("Gateway to the Past. An archaeological quality controlled subject gateway as a resource for higher education in Lund") is to examine how a quality controlled subject gateway could increase the quality of the information supply for the Department of Archaeology and Ancient History at Lund University. The essay gives a brief background to subject gateways and also describes the Department and its subjects (prehistoric archaeology, medieval archaeology, osteology and classical studies) . The essay consists of a questionnaire distributed to parts of the target group as well as an investigation of three particular subject gateways: NordArk, ARGE and The Labyrinth. The essay also contains an exposition of how archaeologists seek information, of the structure of the archaeological subjects and of classification systems for quality controlled subject gateways.
ConneXion : Konstruktion och produktutveckling utav proteskoppling
The company Sound Precision has developed a new Line Array loudspeaker system (VHA-40). When using this system, their customers need computer aid to get the best possible sound-quality and control of sound levels for the whole audience. The aim of this thesis is to develop a truly useful sound quality simulator for the VHA-40. The system will help the sound engineers to position the loudspeakers for optimal sound by simulating loudspeaker configurations and visualizing the resulting sound quality and quantity. To solve this a human-centered design (HCD) approach is taken to implement a system that is truly useful for the users, meaning that they will use it more and hence deliver better sound for the audience.
Rektors systematiska kvalitetsarbete ur ett helhetsperspektiv
A systematic quality work is essential for anyone working in preschool, school,kindergarten and adult education to give children and students an equal education.Skollagen (2010:800) indicates that quality work should be focused on the nationalgoals of education. According to Skolverkets allmänna råd med kommentarer omsystematiskt kvalitetsarbete - för skolväsendet (2012) is the work to develop quality acontinuous process. Everyone's involvement and participation is therefore essential.Systematic quality work means to systematically and continuously monitor theactivities, analyze performance against national targets and based on that plan anddevelop. Although the work has been driven outside governmental policy documentssince 1997 shows, among others, Skolinspektionens audits of municipalities andschools that there is major deficiencies in the obligation to conduct a systematicquality work. It appears that more than half of the surveyed schools had deficienciesin its system quality work.This is the starting position this study takes on to and through literature review,document studies and interviews of principals is the subject problematized.
Dokumentation av ensilering med fokus på clostridiesporer i mjölk :
To produce milk of good standard the feed for the animals kept for milk production is an important part in the work of quality. This makes it important to feed them with good forage, especially when feeding with silage. The process of making silage is very complex and requires a careful handling to be successful. The fundamental idea is to create an anaerobic environment in the herbage to favour the desirable micro-organisms, in this case the lactic acid bacteria. This environment is created by careful handlings were the importance is to pack the crop well and cover it as soon as possible to exclude oxygen.
Problemanalys vid Aros Quality Group Enclosure Systems AB
The aim of this report is to increase the knowledge and understanding of the problems within the production at AQ Enclosure systems, and thereby achieve a more stable flow throughout the whole process, a better working environment and better competition advantages. The internal flow along with the external cooperation is very important for the company, because it views flexibility and short leadtime as it is the most important competitive means. The part of AQ production that?s been investigated is the manufacturing of ATM-machines, where the costumer is Banqit. This company is a rater small company with about 4 % of the world market of ATM-machines.In order to achieve the aim of the report extensive interviews have been carried out with employees at AQ.
Jordbruk och mjölkproduktion med kor i Etiopien :
Ethiopia is the country with most livestock per capita on the continent of Africa. There are 34.5 million cattle that are used for drought, meat- and milkproduction and 85% of the population rely on agriculture for their survival in some way. Milk is produced in four main systems, through pastoralism in the lowlands, in mixed crop-livestock systems in the highlands, in and near big cities with only one or two cows, and in intensive farming systems. There are 17 cattle breeds in Ethiopia and some of them are more suitable for milk production than others. Several environmental and economic problems arise from livestock holding in the country, for example overgrazing, low production due to feed shortage, low quality of the avaible feed and non-existing breeding programs.
Nobel och August på biblioteket ? Bibliotekariers attityder och förhållningssätt gentemot litterära priser
The aim of this Master?s thesis is to examine attitudes and standpoints amongst librarians at the Swedish public library towards literary awards and awarded literature. The questions posed in the study are: What attitudes are expressed amongst these librarians towards the Nobel Prize in literature, the August Prize and literary awards and awarded literature in general? What significance do the Nobel Prize in literature, the August Prize and other literary awards have concerning purchase and display at these public libraries? How is awarded literature perceived and how do they talk about it concerning quality and are questions of quality significant? Qualitative interviews with seven librarians at four different public libraries have been done. Theories regarding J?rgen Habermas the bourgeois public sphere and Pierre Bourdieu?s terms habitus, field and capital have been used as to explain the library as a public sphere.
Analys av mätdata från nätstationer
Fortum has in a pilot project installed metering equipment with wireless communication in secondary substations in Stockholm. So far, the collected data are used only in specific projects.This master thesis was carried out at Fortum Distribution AB in Stockholm during 2013. The purpose of this study is to simplify and enhance the use of data in for example network planning process, by giving suggestions on how data can be managed and giving examples of analyzes that collected data can be used for.The electricity meter which Fortum has installed is a EDMI-Mk10A which is set to measure max/average/min values with a one hour time resolution of the following parameters: voltage (per phase), current (per phase) andactive power and active and reactive energy.In order to analyze the collected data an analysis tool is required. During this thesis two customized tools in Microsoft Excel have been developed, one for sorting data and one for analyzing.One aim of the thesis is to show examples of what collected measurement data can be used for. This work shows an example of analysis of active power, power factor, voltage, occurrence of interrupts and the relationship between outdoor temperature and power.This master thesis has among others resulted in the following advice: Expand the number of secondary substations with measuring equipment.
Servicekvalitet på Göteborgs stadsbibliotek utifrån dyslektikers perspektiv
The aim of this paper is to examine how dyslectic adults define the service quality at the public library of Gothenburg. The purpose is also to investigate what level of service quality the library provides and which responsibilities the library has towards the dyslectics. Answers are sought to the following questions: - How do dyslectics perceive the service quality at the public library of Gothenburg and is that service quality satisfactory? - What responsibilities does the public library of Gothenburg have towards the dyslectics according to cultural policy documents? In this paper six persons have been interviewed. Of these, four are adult dyslectics, one works with people with special demands and the last one is the chief librarian.
Effektivisering av mellanspänningsnät med enkla medel : Feldetektorer och sommardriftläge
Renewable energy and the charging of electrical vehicles will increase in the future. Therefore the risk of outages is also increasing, partly because renewable energy is intermittent and the production amount can change fast. Charging electrical vehicles is often demanding high effect in short time, which could make faults occur. It takes more advanced technology to short the outage time. Today Övik Energi has high reliability in the power grid, but in order to maintain the reliability, it is time to prevent problems that can occur in the future. This thesis has presented a suggestion for the placement of fault detectors Protrol IPS2, in which a total of four detectors is proposed.
Oregistrerad gemenskapsformgivning - Svaret på problemen med formskydd för modeprodukter?
In the year of 2002 a new council regulation on community designs was implemented. In the beginning of the essay the legal situtation before the implementation is investigated and part of the purpose is to evaluate if it constitutes a solution to the problems with protection of fashion designs that existed then. Because fashion designs more or less were excluded from protection during the period before the implementation the fashion business developed a habit of unauthorized reproduction. This attitude among the market players is a central point of the essay. The essay starts off with a review of the earlier lack of possibilities regarding the protection of fashion designs.
Från snopp till kropp : En c-uppsats utformad inom sex och samlevnad
Detta är endast en del av ett stort arbete, på grund av omständigheterna (till exempel möjligheten att publicera en power point) har vi varit tvungna att begränsa vår publikation till lärarhandledningen. Det finns också en elevutgåva, power point-presentation samt ett prov som inte publiceras. För att ta del av dessa krävs möjlighet att komma åt Biologi C för lärares kurswebb Vt-2008 på Södertörns högskolas intranät. .