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4134 Uppsatser om Simplified LCA Environmental impact - Sida 33 av 276

Enklare korglutning

This project was led on behalf of Bombardier Transportation in Västerås, Sweden, incollaboration with KTH Stockholm and EPFL Lausanne. This project is connected to thedevelopment of a new and simplified tilt system for rail vehicles.Growing competition from other means of transportation has forced railway companiesthroughout the world to search for increased performances.Travelling time is the mostobvious performance indicator that may be improved by introducing high-speed trains.They require very large curve radii and long transitions curves not to impairridecomfort, another performance indicator. Building new tracks adapted to high speedtrains is very costly and can only be justified where the passenger base is large.Trains with the capability to tilt the carbodies inwards the curve is a more cost efficientalternative. The tilt inwards reduces thelateral force felt by the passengers allowing thetrain to pass curves at enhanced speed with maintained ride comfort but increases thefrequency ofmotion sickness.The benefits of tilting trains are improved speed capability in curves and enhancedpassengers comfort, but at higher buying and maintenance cost. As the conventionaltrains increase their speed in curves, the performance advantage of tilting trains isreduced while their prize is still kept significantly higher and constant.

Demokrati och diskurs. En normativ analys av diskursiv påverkan på de demokratiska värdena öppenhet, ansvarsutkrävande och inflytande

The idea that I put forward in this thesis concerns the democratic system and the threat from discoursive impact on its core values. I focus my normative analysis on three of these democratic values: transparency, accountability and influence ? and what democratic problems the discoursive impact causes in conflict with them. I have used a critical discourse theory to define discourse and discoursive impact, by focusing on the process of discourse, rather than its nature. I deal with the political structure where I claim that the essential relation between citizen and politician is disrupted, due to lack of information and the imminent problems of the existing network society.

Arboga möter miljöutmaningar och klimatförändringar

Municipalities in Sweden are responsible for physical planning by developing a general plan. This plan contains intended land and water use for the area. This study aims to investigate the level of integra­tion of environmental issues in the general plan of Arboga municipality and also how well adapted the municipality is for climate change. Further on, the study intends to examine the focus of the gen­eral plan and at what rate the national environmental strategies are implemented in the local physi­cal planning of Arboga municipality. Methods used for this study are interviews and reviewing of the general plan itself and other key documents.

Massmedias makt i bolagsstyrningen : Om och hur massmedial publicitet påverkar bolagsstyrningen

Background and problem: Corporate Governance is a well-known phenomenon which has been the focus of plenty of research where the board of directors and the CEO have been regarded as important actors. What's affecting decisions regarding these actors has been debated whereas media has been pointed out of having an impact. To decide whether or not media can affect Corporate Governance have shown to be problematic whereas it exists divergent views regarding this. At the same time this relationship is more explored in other contexts than the swedish one, although this one is considered suitable for this. Consequently there is a motive for examining medias impact on Corporate Governance in Sweden. Purpose: The purpose of the thesis is to explain if media has an impact on Corporate Governance at an overall level.

Alkohol -en socialt given dryck? : Hur omgivning, kontext och identitet kan påverka studenters uppfattning av alkoholbruk.

The overall aim of this study is to gain an understanding of how student?sexperiences influence their perceptions about the use of alcohol during the study years. We focused on various factors that might have an impact on the individual?sperception and alcohol intake. These are: environmental influences such as family, school and friends and their dominant norms, context such as place and time in life and how individual and social identity affects student?sperceptions.

Utformning av kylkanaler och spånrum på superturbofräsar

This thesis describes how the chip space and coolant channels are designed in today?s mills, the ideas behind the design and what is considered to be the best method of cooling. It contains ideas on how the chip space can be simplified. It contains several concepts on how the cooling could be designed for better efficiency and manufacturability. There are also suggestions on how the cooling could be stopped when the cutter isn?t cutting.

Topplistan som motivationsfaktor

Väldesignade spel är naturligt motiverande för att hålla kvar sina spelare. För att ett spel ska bli framgångsrikt är det viktigt att det innehåller motivationsförstärkare. På senare år har element hämtade från speldesign även använts inom andra områden, utanför sin vanliga kontext. Detta sammanfattas i begreppet gamification (sv. spelifiering).

Småvatten då och nu : en förändringsstudie av småvatten i Skåne och deras kväveretentionsförmåga

Wetlands play an important role in the ecosystem. They reduce the impact of flow flux in the drainage area, acts as upholder of biodiversity, as an esthetic and recreational component in the landscape and they have the ability to reduce nutrients such as nitrogen, and help preventing eutrophication in costal areas.The number of wetlands in Scania have, due to the intensified agriculture been reduced to maximize the area suitable for crops.However since the mid 80th the consequences of this has been acknowledged, and many wetlands have been restored.This master?s thesis aim to see what impact this development have had on wetlands in Scania over the last 60 years. And also look at some of those factors important for the efficiency of nitrogen removal in wetlands. During the process a detailed manual for inventories of this sort was created.The material used to execute the inventory of wetlands where aerial photographs over Scania from the 1940th, 1980th and 2000.

Gröna transportkorridorer

The economic development and competitiveness in Europe is heavily dependent on an efficient transport system. Movement of goods and people is essential for a competitive industry and successful trade. As a result of an intensified transport business, consumption of fossil fuels has increased dramatically. As a consequence, there are increased emissions of dangerous greenhouse gases. Transports are often mentioned as an area with high impact on the environment.

Strategiskt miljöarbete för Helsingborgs Dagblad AB

Detta examensarbete är utfört på Helsingborgs Dagblad AB i Helsingborg. Examensarbetet omfattar en analys ur kvalitetssynpunkt av HD:s material-, energi- och transportflöden, dess påverkan på miljön, kopplingen mellan HD:s tre kärnvärden och vikten av ett strukturerat miljöarbete samt ett antal förslag på fortsatt arbete. HD:s materialflöden består främst av material för tryckningen men även en hel del elektroniska apparater. Ett stort antal datorer och annan kontors-utrustning står på dygnet runt, året runt vilket orsakar onödigt stor energiförbrukning. HD:s verksamhet är beroende av transporter, både av material och personer.

Inventering av processvattenbalans : fastställande av fjärrvärmedistributionens läckage inom Vattenfall Värme Uppsala AB

Heat is distributed to the district heating customers through pipes with water as a heat carrier. The district heating system is complex. To decide what is leakages from the district heating net versus what is the water consumption of the plant, is difficult. Therefore, the purpose of this master thesis is to establish a model where the district heating net?s leakages but also the water consumption of the plant can be followed daily. The project is performed at Vattenfall´s district heating power plant in Uppsala. Information is gathered through discussions, drawings of the plant and guided tours of the plant.

Laglottens vara eller inte vara?

AbstractThe rise of globalization has made ??the sustainability aspect emerged as a sign that peoples? actions must change. Tourism is now one of the fastest growing industries in the world that has an impact on people, nature and cultures. The purpose of this study is to gain a better understanding how different tourism actors use and express the concept of sustainable tourism development in the co-operation organization Kiruna Lapland. One of the most visited places in the north of Sweden.

Trapphus i träplattform för CBBT

Industrialization of construction is by some considered to be a solution to the building industry's problems about the lack of quality, high production costs, low productivity and poor environmental adaptation. Meanwhile, industrialized construction partly earned a bad reputation after the million housing program. As large-scale projects where promoted during this period, it worked very well to use the technique of construction elements. In the mid seventies though, criticism arose which claimed that the aesthetic qualities had been deprived in the corporates effort to make housing production as efficient as possible.Tyréns, Derome and CBBT (centre for building and housing in wood) cooperates in a development project to develop a building system for 4-8-storey buildings, consisting of three platforms: a technology platform, an IT platform and a processing platform. The technology platform consists of flexible, industrially built flat modules of wood and from this platform the subsystem stairwells, is broken out.

Kväveläckage inom Tolångaåns dräneringsområde : modellering och åtgärdssimulering

Under de senaste 300 åren har jordbrukslandskapet i Sverige genomgått stora förändringar. I början av 1900-talet introducerades konstgödslet och efter andra världskriget ökade gödslingen dramatiskt i syfte att maximera produktionen. Detta har lett till att överskottet av kväve har spolats ut i vattendragen. I detta arbete har stor vikt lagts vid att skapa en egen kvävemodell i syfte att simulera kväveläckaget från jordbruksmarken i Tolångaåns dräneringsområde..

Miljö- och hälsorisker med konstgräsplaner

In Sweden today many municipalities and sport clubs chooses to build artificial turfs becauseof the increased period of using the turfs during the year and less maintenance requirementsthan for natural grass fields. What could be problematic with artificial turfs is the rubbergranules used as infill material in the turf matt. The rubber granules are often made fromrecycled tires, which may contain for the human health and the environment, harmful substances.This was the reason why the Swedish Chemicals Agency commissioned a statusreport in 2006 which, among other things, concluded that the environmental and health risksassociated with granules made from recycled tiers in artificial turf fields were small, but thatthere could be a local environmental hazard. The purpose and objective of the risk assessmentwas to identify how artificial turf plans granules can affect recipients in the area closeto the pitches and provide input to reduce the spread of metals and substances harmful forboth human health and the surrounding environment. The work was divided into three parts:(1) the construction of artificial turf pitches and their material content, the spread of granulatesoutside the fields and disposal of artificial turf pitches.

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