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1027 Uppsatser om Electric Engineering - Sida 35 av 69

Tesauruskonstruktion i ämnet landskapsplanering

This research paper is a thesaurus construction for the interdisciplinary subject of landscape planning. The personnel doing the indexing of documents at the Swedish University of Agricultural Sciences had earlier expressed a need for such a work within the fields of Landscape Architecture and Landscape Engineering. However our objective was not to create a complete thesaurus, but instead a basic construction which the personnel at the Agricultural University could expand upon. The actual construction is based upon ISO 2788-1986, Documentation Ð Guidelines for the establishment and development of monolingual thesauri, and Aitchison, Gilchrist and BawdenÕs Thesaurus Construction (1997). The line of enquiry taken has dealt with the problems relating to the collection, selection and control of indexing terms.

Kartläggning av tvärfunktionella verksamhetsbehov för framtida utveckling av OAS

The management of information is one of the key aspects within a successful andefficient product development process, particularly regarding complex products.Scania CV AB is at the moment developing a new IT-system, OAS, which aims tomanage the company?s product data. With this as a background, the purpose of thismaster thesis is to identify the cross-functional user needs within Scania?s organizationconcerning product data and the management around it.To fulfill the purpose, an empirical study consisting of 40 personal interviews with 50representatives from different functions within Scania?s organization was carriedthrough. The empirical data was then analyzed focusing on identifying thecross-functional needs and issues.The study points out that there is a big potential regarding improvement among themanagement of product data.

Effektivisering av energianvändningen i en förskola

This rapport contains an examination of the energy consumption of a kindergarten, which areas that have the largest impact on the energy consumption and what can be done to reduce those areas in ways that are relatively easy and profitable. It is also analyzed if it is possible to reduce the energy consumption from today?s consumption to a consumption that fulfils the demands placed on low energy houses by FEBY.The focus has been on reducing the energy consumption of the areas ventilation, heating system and hot water system, since those seemed to be the easiest ones to affect and since the building is quite recently built.There are different kinds of ventilation systems, at the moment the building have a CAV-system, which means that the ventilation is too high during large parts of the day. There are different ways to manage the ventilation system, for example presence detection, humidity sensors, CO2 sensors, temperature sensors and season adjustment. Many of those are in the end dependent on CO2 sensors to guarantee a good indoor climate, therefore the focus have been placed on this system.

Enkla kemiska processer inom förskolan : En kvalitativ intervjustudie om förskollärares uppfattningar och tankar om läroplansmålet enkla kemiska processer

The aim of this study was to investigate preschool teacher?s perceptions about the curriculum goal concerning simple chemical processes. The result was based on narratives received by a qualitative study and semi-structured interviews of six preschool teachers. The results of the study showed that preschool teachers perceive that they actually are working in a relatively small scale with simple chemical processes and they do not really know what simple chemical processes are, and do not feel very familiar with the subject. Water, dough, mud, paint and baking were the most common activities that were used when working towards the curricular goal. However, it was never explained to the children that it was simple chemical processes they were working with during the activities, neither was it discussed among colleagues because of the uncertainty about the concept.

Studie till uppstartande av annonskatalog

Sten Jonsson wants to start a production of an advertising catalogue for small companies in Sweden. Acatalogue where the advertisingcost is so low that most of the companies can afford to participate. Thecompanies who will advertise should be manufacturing companies in trades of carpentry, sheet metalworkshops, forging workshops and engineering workshops.The catalogue will facilitate for the manufacturer to reach the costumer without any middleman.Without a middleman creates a possibility for an opinion about the product at the same time as theprice can be held low. A catalogue of this type would benefit the marketing of the companies at the sametime as it would generate an occasion for innovations.The possible target groups are property companies, construct companies and farmers.A market research has been carried out contained a postal interview and a phone interview. Themarket research carried out to get an understanding in what the companies think about the idea butalso to see if the companies are in interest of advertise in the catalogue.

Testplattform för nätverks-RTK i syfte att ge en rikstäckande GPS-tjänst med centimeternoggrannhet

Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.

Riskanalys på Karlshamnsverket - Påverkan vid en framtida höjning av havsnivån

Människan har genom sin industriella framfart bidragit till ökade nivåer av växthusgaser i atmosfären och på så sätt rubbat den balans av gaser som naturligt förekommer. En klimatutveckling med trender som tyder på en framtid med varmare klimat är en av konsekvenserna av den process vi i alldagligt tal benämner växthuseffekten.Ett varmare klimat förväntas medföra förändringar av en rad faktorer, där medelvattenståndet i världshaven är en. Med en geografisk lokalisering i direkt anknytning till kusten och en topografisk lokalisering på dryga 2.65 m över havet skulle Karlshamnsverket kunna vara i farozonen för de konsekvenser en höjning av intilliggande hav kan medföra. Karlshamnsverket är ett värmekraftverk som ägs och drivs av Karlshamn Kraft AB. Anläggningen ligger utanför Karlshamn, vid Blekinges kust, och redan idag råder viss problematik vid högvattenstånd.

Vandenbergh 9: Kontorskomplex till moderna bostäder

Stockholm är en växande stad och för att bemöta det behov av bostäder som expansionen medför, krävs att befintliga fastigheter utvecklas och får nya, bättre anpassade ändamål. Det är framförallt viktigt att utveckla de fastigheter som är belägna i attraktiva områden med pågående stadsutveckling eller goda möjligheter för ny stadsutveckling.Denna rapport behandlar utvecklingen av Vandenbergh 9, ett kontorskomplex från tidigt 1970-tal till ett modernt bostadshus. Rapporten resulterar i förslagshandlingar över hur den invändiga gestaltningen kan komma att se ut. Förslaget följer alla de lagar, stadgar och rekommendationer som idag ställs för byggnation i Sverige.Detta resulterade i sex individuella plan, men för att främja hållbart och rationellt byggande har ett stort fokus lagts på modulbyggande. Rapporten redogör för hur en fastighet i en stor skala kan utvecklas och erhålla ett nytt syfte..

Uttorkning av lera : Orsaker och följder

When building a house or similar the stress on the ground increases and deformations can arise. The deformations create a foundation that the building is not constructed for and damages on the building arise. The increased stress on the ground can be derived back to the building, but it is possible that the increased stress may well derive from different sources such as other buildings or trees.       The building is an older property, built in the late 19th century alternatively early 20th century, and is today used for rental housing and has suffered severe damages due to subsidence. The goal of the thesis is to find possible causes for these subsidences. The thesis was executed as a combination between literature- and casestudie. After careful studies it has been found that a probable cause for these subsidences is trees. Through field- and lab studies it has been found that the trees has effected the ground through there accumulation of water.

Ekonomisk utvärdering av betonggjutformar

This report will try to evaluate the use of rented concrete casting moulds, which are used to build walls and system of joists. The evaluation is only examining the economical aspects.The cost of using concrete casting moulds is a big part of the total production expenses. Therefore it is important that the calculated price not exceeds the final costs of the casting moulds. The calculated price is the price used in the process of making an offer.The evaluation consists of a comparison of the calculated price and the final costs for three building projects. It also evaluates the exploitation of the concrete casting moulds for each project.The report is made by Sven Gynne and Anders Alexandersson at School of Engineering, Jonkoping University, in cooperation with PEAB Jonkoping.

Den nya generationen KinBag : The new generation of KinBag

This report summarizes a Bachelor Degree Project in Integrated Product Development,carried out during the spring semester in 2007 by three students at the Product Design Engineering programme at the University of Skövde. The project was performed as an assignment for KinBag ab, a sister subsidiary to Kinnegrip ab in Lidköping, who develop,manufacture and market the golf bag KinBag, a bag with an integrated wheel carriage system. The purpose of the project was to redesign the golf bag to attract a target group consisting of golfers aged between 20 and 40.The layout of the project was as follows: The project began with a feasibility study where different problems were identified with the basis of a market research which eventually was summarized in a dynamic specification of requirements. The feasibility study was followed by a generation of ideas which contained everything from sketches to simple mock-ups with an intensive amount of thoughtful brainwork and information gathering in between. This ledto the development of a number of design concepts, both on an overall level and on different parts of the golf bag.

Trafiken till Göteborgs södra skärgård - En annorlunda kollektivtrafik

Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.

Fällbar ROPS med tak/FOPS

Detta examensarbete har utförts i samarbete med Svedala Compaction Equipment AB. Examensarbetets primära mål var att reducera höjden på ROPS tillhörande asfaltvält CC 422. En sänkning medför ett friare vägval och billigare transporter. Hittills har vägvalet påverkats av broar, viadukter och andra hinder. Med hjälp av riktlinjer från Svedala Compaction Equipment AB och Fredy Olssons modell för integrerad produktutveckling togs kriterier fram, vilka användes vid bedömning av olika lösningsförslag. Utvärderingen resulterade i att två av de tio ursprungliga förslagen gick vidare till nästa steg i produktutvecklingsprocessen - primärkonstruktion. Primärkonstruktionen inleddes med vidareutveckling av de två principförslagen.

Energieffektivisering av skolbyggnad från 60-talet : Studie av Hållsta skola i Eskilstuna

In June 2006 the Swedish government decided that the use of energy in buildings should be reduced by 20 percent until 2020, compared to the level of energy used in 1995. To contribute to this goal, the real estate company ?Eskilstuna Kommunfastigheter AB?, set up own goals for their buildings. In 2009, the goal for schools was to have a maximum energy use of 118 kWh/m2year for heating and hot water.The school ?Hållsta skola?, just south of Eskilstuna, exceeds the limit since it used 270 kWh in 2008.

Distansövervakning av givare i hemmet

Examensarbetet belyser så väl fördelar som nackdelar under utveckling av USB-enheter med PIC processorn PIC16C745 som grund. Processorn används i detta projekt för att möjliggöra en effektiv distansövervakning via USB gränssnittet. I detta projekt har en USB-enhet konstruerats med uppgiften att leverera data från olika givare till en PC. Vidare publiceras dessa data på Internet via en webbserver. Givarna är av typen analoga och binära. Till de analoga givarna hör två stycken temperatur- och en ljusgivare.

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