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573 Uppsatser om Flat surface - Sida 10 av 39
Svensk vindkraft
Sweden's drinking water quality is considered to be high partly due to a high quality of the raw water and a well developed sewage infrastructure. Despite this, there is water contamination that could be prevented by installation of a sophisticated early warning system. Some of the major players in the production of drinking water have already invested in different types of early warning systems to ensure drinking water of high quality. There are various forms of early warning systems where automatic monitoring of E. Coli is an interesting alternative.
Alternativ till fiskbaserat foder till karnivora fiskar
If one looks at physical planning in Sweden today one can see that while talking about densification of existing development, reduced emissions and careful use of important land, urban sprawl is a fact with development of sheer residential districts in the urban edges and shopping malls in each and every municipality. As sustainable development is an essential goal for physical planning to strive towards, it is worth questioning if the direction of today?s planning will lead to the goal. A sustainable development can be seen as an obvious to goal aim at. In reality the aim means a hard and complex work.
Hårdfräsning i verktygsstål : Förslitning av skäregg
This thesis work is made by Torbjörn Johansson on Karlstad University for Uddeholms AB. The assignment in this thesis work was to investigate tough cutting in three different tool steels: Vanadis 4 Extra, Vancron 40 and Sverker 21. The research was to compare the wear of the tool after cutting in each one of the tool steel alloys. The research was also made to see if the tool cutting in Vancron 40 has a better wear than the tool cutting in Vanadis 4 Extra and also compare the results with Sverker 21. All three of these alloys are a part of Uddeholms AB:s range of products, and is used in applications like forming tools and knife tools. Vancron 40 is a powder steel with a very good combination of mechanical properties like ductility, adhesive strength and hardness.
Småskalig vattenkraft vid Olofsfors bruksmuseum : Med faunapassage
In Sweden there are 1894 small-scale hydropower plants in operation, which together generate 4.3 TWh of electricity per year according to Swedish hydropower compound (SVKF, 2011). This corresponds to the annual consumption of about 860,000 Swedish households (based on an annual consumption of 5000 kWh). In the mid-1950s there were around 4000 small-scale hydropower plants in operation in Sweden before cheap fossil fuels and uranium competed with them, in the current situation only 1,894 of these are in use. If slumbering small hydropower plants once again would be taken into use and some new ones are built, we would be able to extract about 7 TWh of renewable electricity from these annually in Sweden, representing about 1.4 million households.The thesis intends to calculate and construct a hydroelectric power plant at the existing dam in Olofsfors and give suggestions on how the power station should run during the time that fish migration is greatest in Leduån.The turbine and generator to the station in Leduån at Olofsfors is designed by the height of the fall and the water flow through the dam. The turbine selected for the station is a CK-1000RM turbine with a 4-pole 250 kW generator from Cargo & power turbine Sweden AB, which is expected to deliver 1.2 GWh per year.
"Kunden har inte alltid rätt, men man kan låta kunden tro det..." : Roller och känslor i det dagliga servicearbetet
Syftet med denna studie är att få en djupare förståelse för fenomenet emotionellt lönearbete och vad fenomenet innebär för butiksmedarbetare i en organisation som har kundinteraktion både face-to-face och via telefon och/eller e-post. Vi ville undersöka butiksmedarbetarnas gemensamma erfarenheter av att upprätthålla en fasad utåt mot kunderna. Även en jämförelse av resultatet mellan den fysiska butiken och web-shopen har gjorts. Den teoretiska utgångspunkten influerades av den tidigare forskningen som finns och grundas i Erving Goffmans dramaturgiska perspektiv och Arlie Hochschilds teori om emotionellt lönearbete. Resultatet bygger på sex djupgående semistrukturerade intervjuer ur ett fenomenologiskt perspektiv.
Jämförelsestudier av Takkonstruktioner med Stora Spännvidder
The purpose of this report is to examine various roof structures that can operate in a warehouse with large spans. The building that is examined in the report is currently under construction, and the roof construction has already been selected. The selected roof system will therefore be compared with some other structures and materials that have been possible. The report will evaluate three different frame materials, two insulating barriers and two overlaying materials. Another important part in major construction projects is the roof safety.
Småhusutformning och solenergiutnyttjande
This paper goes through solar energy and what uses it has. It is also a guide in the choice of solar collectors forthe real estate that I have drawn for the thesis work.Solar energy is a renewable source of energy from the Sun's light. Energy can be used to produce both heat andelectricity through solar collectors and solar cells. Some of the benefits of solar energy is that it is completely freeto extract, environmentally friendly and virtually maintenance-free. Disadvantages are that the technology isexpensive, does not cover the entire energy needs and takes a long time until it pays.
Självkompakterande betong : Ytjämnhet utan efterbehandling
Betonggjutning är ett tungt moment inom byggproduktion och entreprenörer har länge använt betong med flyttillsats för att få en mer lättarbetad betong. Ändå har det krävts långa arbetspass och många tungarbetade moment. Efter lasernivellering, vibrering, slodning och glättning har man kunnat uppnå en yta som nästan är helt jämn. Dock ej så jämn att avjämningsmassa kunnat elimineras för att inte få sviktande parkett eller buktande plastmattor.Självkompakterande betong (SKB), eller vibreringsfri betong som man först kallade den, forskades fram på 80-talet i Japan och dök upp i Sverige i slutet på 90-talet. Det är en betong som innehåller en flyttillsats och en så kallad filler vars gemensamma egenskaper ger en betong som har bibehållen homogenitet samtidigt som den fyller ut formen och omsluter armering endast genom gravitationskraften.
Utredning av hylskvaliteter : Investigation of core qualities
Vid framställningen av papper för tryckindustrin som använder rullat papper används olika typer av kartonghylsor. Hylsans uppgift är att bära papperet från pappersbruket till kunden. Vidare är det hylsan som ligger till grund för att papperet skall vara körbart och rullbart i tryckpressen. På bruken och tryckerierna utsätts hylsorna för stora påfrestningar vilket gör att hylskvaliteten är av största vikt.
I detta examensarbete har ett antal hylskvaliteter avsedda för pappersindustrin utretts.
Allokering av kapitalinkomst - en effekt av århundradets skattereform
The aim of this paper is to study intra household allocation of capital income by using data on Swedish observations. The 1991 tax reform was to change the taxation on capital income from a progressive to a flat tax system. Before the tax reform there were incentives to allocate capital income to the spouses with the lowest income of labor in order to reduce the total tax burden. The data describes the year of 1989 and 1993, those we choose to examine. Using Swedish data from LINDA database we estimate a quotient by ordinary least squares (OLS) regression.
Solenergi : en lönsam investering för ett lantbruk?
A possible way to reduce pollution and slow down the process of global warming is to increase the usage of renewable energy sources. One of these renewable energy sources is solar power. With the aid of solar panels and solar cells the energy from the sun can be transformed into both heating and electricity. The requirement to use the sun in this fashion is a suitable surface, for example a big roof, an angle between 40-60 degrees and that the surface should be exposed to the south. Almost every farm meets these requirements.
Skapa ett framgångsrikt förbättringsarbete på AKzo Nobel Surface Chemistry i Stenungsund
Dagens omgivning är full av osäkerhet, marknadssvängningar, geografiska förändringar i arbetskraft och den högteknologiska utvecklingen vilket utsätter nutidens organisationer för ständiga förändringar (Savery och Luks 2000). Detta innebär att företag på 2000-talet, genom att systematiskt förbättra verksamheten, oavbrutet måste hålla ner kvalitetsbristkostnader, minimera förluster och öka produktiviteten för att kunna bevara sin position på marknaden (Baghel, Bhuiyan och Wilson, 2005).I denna studie var syftet att skapa ett nytt arbetssätt och struktur för ett framgångsrikt förbättringsarbete på Akzo Nobel Surface Chemistry Stenungsund. Studien bestod dels av ett teoriavsnitt med en litteraturstudie utifrån nutida forskning och även en kvalitativ undersökning genom djupgående intervjuer med 19 medarbetare från olika ansvarsnivåer och via en enkätundersökning som gick ut till resterande medarbetare.Akzo Nobel Surface Chemistry är en del av Akzo Nobel koncernen som är en av världens ledande färgtillverkare. Koncernen har över 55 000 anställda i över 80 länder där ungefär 3600 anställda arbetar på ett 20-tal platser runt om i Sverige. Företaget bedriver förbättringsarbete genom daglig uppföljning ute i fabrikerna och på respektive avdelning.
Hållbar utveckling i svensk planeringspraktik : en diskussion kring förtätning och andra ambitioner
If one looks at physical planning in Sweden today one can see that while talking about densification of existing development, reduced emissions and careful use of important land, urban sprawl is a fact with development of sheer residential districts in the urban edges and shopping malls in each and every municipality. As sustainable development is an essential goal for physical planning to strive towards, it is worth questioning if the direction of today?s planning will lead to the goal. A sustainable development can be seen as an obvious to goal aim at. In reality the aim means a hard and complex work.
Översvämningsmodellering av ett dagvattensystem
Storm water management has become a more important matter as urban areas are expanding and natural areas are being exploited. As nature landscapes are being converted into hard surface areas storm water flow is affected both in terms of velocity and size. A flow increase can easily result in a flooding if the dimensions of the pipeline system are inadequate. Considering predicted upcoming climate changes, flooding?s may become more common in urban areas in the future.
Utveckling av dyksystem : Handhållen enhet för sökning under vatten
Ocean Modules Sweden AB is a small business active in the field of underwater technology. Thecompany was contacted by the Swedish Defense Materiel Administration (FMV) in order todevelop a new system that would conform to their specific requirements. Two students at theRoyal Institute of Technology (KTH) were consulted in conjunction of this project in order to aidthe development and conceptual design of the system.The primary users of the system are the divers of the Explosive Ordnance Disposal division (EOD)- a branch of the Swedish Armed Forces. The purpose of the product was to incorporate allnecessary functions required by the EOD divers into one single system. The main functions arecommunication between the surface operator and diver, video recording, still imaging, positioning,navigation and ocean floor mapping with sonar.