Interest in alternative energies is high in Sweden today, particularly in the agricultural sector. According to the Swedish lantbruksbarometern (2009), almost all respondents consider the use of some form of alternative energy from the farm. While interest in alternative energies is large, attention to the alternative energy straw has fallen and is almost nowhere mentioned in the literature today. Three years ago, in the Lantbruksbarometern nearly 44% of the farmers would be willing to invest in straw as heating system on the farm. How do the farmers decide to invest in alternative energies? With this information a problem is presented for this paper.

The Homogeneous Charge Compression Ignition (HCCI) engine is promising in terms of lowNOx, low particulates and high efficiency. Due to its homogeneous charge, where thecombustion starts almost simultaneously from a number of points in the combustion chamber,only lean mixtures are possible to burn because of the resulting rapid combustion, which is muchfaster than the combustion in an SI-engine or a diesel engine. When richer mixtures are used thecombustion will start earlier and also be more violent.To phase the combustion later and lower the combustion speed, external cooled EGR can beused. The EGR-system used in this thesis uses a divided exhaust channel where one channel andits corresponding valve are used only for transporting EGR back to the intake system.Consequently the EGR-valve is connected to the intake pressure. This system is called Direct-EGR (D-EGR).Engine tests verified that the CA50 indeed is phased later when cooled EGR is used.

Various Fusarium species causes some of the most common cereal diseases worldwide. Besides the yield losses that can be a result of these diseases, strains from several Fusarium species can produce mycotoxins, some very toxic. The aim of this study was to investigate which Fusarium species and how many that occurred in winter wheat grains from Mälardalen and Kalmar län, if there was any difference in the distribution of Fusarium fungi between the regions and the potential within species to produce mycotoxins belonging to the group trichothecenes. Winter wheat grains collected in 2009 from ten fields (unsprayed plots) in the two regions were analysed for Fusarium species. PCR was used to amplify the TEF region where after the samples were sequenced.

Forest enterprises have always searched for ways to improve efficiency. For the past few years there has been an emphasis on stock-keeping levels. Increased demand for fresh round timber and the need to decrease the amount of tied-up capital has made the forest industry reduce its inventory levels. This has brought on a higher demand on the timber supply from the forest management districts concerning both delivery in time and assortment output. As a result, the flow of timber has fluctuated a lot with serious consequence for the timber supply during 1994.

In this thesis an energy analysis of ethanol production at the ethanol plant of Lantmännen Agroetanol in Norrköping has been performed. The ethanol plant has been studied in combination with Händelöverket, the combined heat and power plant which provides the ethanol process with steam. The purpose of this study was to determine the energy consumption for the whole production chain from grain to ethanol. The analysis has included the energy consumption for cultivation of grain, production of chemicals, the production chain for wood chips, the steam production and the ethanol plant. The grain and wood chips are both considered raw materials there for the energy content in these are not included as energy input in the system.

In this thesis an energy analysis of ethanol production at the ethanol plant of Lantmännen Agroetanol in Norrköping has been performed. The ethanol plant has been studied in combination with Händelöverket, the combined heat and power plant which provides the ethanol process with steam. The purpose of this study was to determine the energy consumption for the whole production chain from grain to ethanol. The analysis has included the energy consumption for cultivation of grain, production of chemicals, the production chain for wood chips, the steam production and the ethanol plant. The grain and wood chips are both considered raw materials there for the energy content in these are not included as energy input in the system.

Network RTK is a real-time technique for accurate positioning with Global Navigation Satellite Systems (GNSS). The technology means the use of correction data from a network of GNSS receivers with known positions (reference stations) to reduce the uncertainty in position for the user´s GNSS receiver (rover). However, this requires that the correction data can be transferred seamlessly to the user in real time. Commonly the corrections are transferred via mobile phones. The Swedish National Land Survey operates a nationwide Network RTK service, where users can receive correction data via GSM or mobile Internet (GPRS).

AbstractDelta Terminal owns an outdated industrial building which they now rent out to businesses. This property currently has a high energy con-sumption and therfore it is desirable to improve the efficiency. In ordet to reduce the energy consumption within the industrial building enve-lope, the heating systems and lighting are being investegated. A good building envelope emits less heat and thus reduces the energy consump-tion. An energy audit is a tool used to determine the energy loss.

With the climate change issues growing in importance on the social agenda, the field of urban masterplanning is of no exception when it comes to minimizing the carbon footprint in a variety of projects. The aim of this thesis has been to prepare the Carbon Critical Masterplanning tool, a software plugin for carbon dioxide emissions assessment developed by Atkins, to be used in Swedish conditions. The main targets were to improve the areas of the tool associated with energy conversion and renewable energy sources, and to test the tool in a real case. A planned construction of a new campus in Albano, Stockholm was chosen for the pilot study. A 3D model was built in the tool and the carbon footprint was calculated for a variety of combinations for energy supply to the future area. The results show that use of locally installed renewable energy sources can reduce the total climate impact when life cycle perspective is applied.

Värmeböljorna blir allt vanligare i Sverige vilket kommer kosta sjukvården miljardbelopp. Hur kan denna trend motverkas? Träd kanske inte är hela lösningen på problemet, men är en hjälp på vägen. Det urbana landskapet har idag högre temperatur än omgivande landsbygd. Detta fenomen, den så kallade urbana värmeö-effekten, beror bland annat på att hårdgjorda ytor absorberar solenergi, antropogena källor utsöndrar värme, luftföroreningar fungerar som växthusgaser och bristen av nerkylande vegetation. Dessa faktorer bidrar till en ohållbar temperaturstigning. Kandidatarbetets mål har varit att ta reda på hur träd bidrar till en temperatursänkning inne i städerna och att identifiera urvalskriterier för att välja träd ur temperatursynpunkt som samtidigt fungerar i urbana miljöer.

With the climate change issues growing in importance on the social agenda, the field of urban masterplanning is of no exception when it comes to minimizing the carbon footprint in a variety of projects. The aim of this thesis has been to prepare the Carbon Critical Masterplanning tool, a software plugin for carbon dioxide emissions assessment developed by Atkins, to be used in Swedish conditions. The main targets were to improve the areas of the tool associated with energy conversion and renewable energy sources, and to test the tool in a real case. A planned construction of a new campus in Albano, Stockholm was chosen for the pilot study. A 3D model was built in the tool and the carbon footprint was calculated for a variety of combinations for energy supply to the future area.

I detta examensarbete har termiska förhållanden undersökts för modulen eSite som är under utveckling av företaget Flexenclosure. eSite omvandlar och riktar ström från en mängd olika producenter och skickar denna vidare till förbrukare. Kylning av komponenter tänkta att sitta inuti eSite har simulerats och analyserats. Komponenterna är placerade på en värmesänka, över vilken naturlig konvektion uppkommer. Denna företeelse har undersökts med hjälp av både manuella beräkningar och datorstödda flödessimuleringsberäkningar (CFD) i mjukvaran Ansys® 14.5 och beräkningsverktyget Fluent?.

Bakgrund och problemdiskussion: Bankkrisen under 1990-talet och den globala krisen mellan 2007 -2009 har kommit som en kalldusch för de svenska storbankerna, Handelsbanken, Nordea, SEB och Swedbank, vilket har lett till betydande kreditförluster. Kreditförluster är den vanligaste orsaken till bankernas ekonomiska problem vid en finansiell kris då återbetalningsförmågan hos kredittagare försämras, samtidigt som det talar för att finansiella kriser är ett återkommande fenomen idag.Syfte: Syftet med detta examensarbete är att se vilka åtgärder i kreditprocessen som gjorts efter finanskriserna i de fyra svenska storbankerna samt även se hur tidigare gjorda åtgärder stod sig under den senaste krisen. Vår ambition med uppsatsen är att de resultat vi får fram ska kunna användas av bankerna i kreditprocessen så att de påverkas mindre vid framtida eventuella kriser.Metod: Uppsatsen grundar sig på en kvalitativ metod med respondenter med gedigen erfarenhet och ansvarspositioner inom storbankernas kreditprocesser och praktisk kunnighet gällande storbankernas påverkan av finansiella kriser.Slutsats: De svenska storbankernas kreditprocesser stod sig bra under den senaste globala krisen i jämförelse med bankkrisen under 1990-talet, orsaken till det är de åtgärder som gjordes i kreditprocessen efter bankkrisen inom banken. Kreditprocessen har under de senaste 20 åren gått från en delvis oprövad och snabb kreditprocess till att idag vara en mer sofistikerad och tungarbetad kreditprocess som ställer högre och strängare krav på kredittagarna. För att få kreditprocessen helt vaccinerad mot finanskriser anser vi att det behövs mer mod och integritet hos kredithandläggare för att på bästa sätt kunna förmedla den rådande situationen på ett korrekt och snabbt sätt..

Högbytorp is Ragn-Sells? largest waste facility and it is located north of Stockholm. There is an old landfill still in use, but at the end of this year it will be closed. The waste deposited on the landfill can, through decomposition, give rise to a large amount of methane gas, which is an energy rich gas that can be used for heat and electricity production. To receive a relatively large amount of gas, the decomposition requires a high moisture content in the waste.

AbstractIII-essay in political science by Christoffer Harnell, autumn -08. Supervisor: Malin Stegman-McCallion. ?Nuclear Disarmament - USA and the Soviet Union 1960-2002? This essay is about USA and the former Soviet Union and their nuclear disarmament. The purpose is to explain why and when the two states begun their nuclear disarmament, as well as what caused the start of the process.