Barley is one of the most important cereals cultivated in the Nordic countries. Climate change brings warmer and moisture climate which favors fungal diseases. In the cropland barley can be seriously infested with hard fungus attack. Since it is important that the yield bears a high quality it is of great importance to find varieties more resistant to attacks.Pathogenesis-related (PR) proteins are stress proteins induced in the plant in response to infection and abiotic stress (van Loon, 1997). PRs are shown to have antimicrobial activity differing between bacteria, fungi and oomycetes (Tandrup Poulsen, 2001).

GE Healthcare wants to investigate whether additive manufacturing would be an alternative method in their workshops in the Umea? plant. Additive manufacturing is called 3D printing in everyday language and manufactures details by building them up layer by layer in an automated machine. The purpose of this work is therefore to investigate how mature additive manufacturing methods are and how they could be used at GE.The work has been divided into three parts. The first section investigates how additive manufacturing would work in the production workshop at GE.

At seed-growing the aim is to produce a commodity with high germination capacity, good soundness and purity, and also slight admixture of seeds from other species. The capacity of germination and the vigour of the seeds may become impaired in consequence of mechanical damage, infection of diseases, growth of mould, attacks of vermin, high drying temperature, secret germination, sprouting in the ears etc. The germ belongs to the outer and most unprotected parts of the seed, and consequently this is much exposed. Even quite sound seeds can instantaneously have low capability of germination. It can be due to the fact that the seeds are in rest of germination, i.e.

Minskad tillgång på fossila material och ökade energibehov i värden skapar ett behov av att utveckla alternativa och miljömässigt hållbara lösningar. Biobränsle har därför växt till en av de viktigaste förnyelsebara energikällorna i målet mot ett koldioxidneutralt samhälle. Dock skapar det obearbetade biobränslet problem, på grund av den höga fuktkvoten, mellan 50-150 %. Som en följd finns ett torkbehov som måste lösas på ett miljö- och energieffektivt sätt. Idag står torkningen av biomaterial innan pelletering för 25 % av den totala kostnaden vid pelletstillverkning.Kostnaden för att torka biomaterialet gör det viktigt att effektivisera torkningen, samtidigt bidrar torkningen till utsläpp av miljöfarliga ämnen såsom terpener.

Det är viktigt att fabriker och andra industrimiljöer är korrekt kartlagda, för att ha kontroll över positioner på maskiner och annan utrustning. Tredimensionella modeller ger enkel och tydlig information om en anläggnings uppbyggnad. Traditionella metoder som med måttband eller med totalstation går både relativt långsamt och det kan vara svårt att uppnå den precision som krävs. Terrester laserskanning (TLS) är en allt vanligare metod för att skapa 3D-modeller över industrimiljöer och tekniken har utvecklats snabbt de senaste åren. Modelleringsprocessen börjar med segmentering, som är en klassificering av alla punkter i ett punktmoln.

The biogas plant Kungsängens gård, owned by Uppsala Vatten och Avfall AB, produces biogas and biomanure from organic household waste, food processing waste and slaughterhouse waste. In year 2012, 4.4 million Nm3 of biogas were produced from 25 200 tons of waste. Before digestion all substrate is sanitized by one hour?s pasteurization at 70°C in order to kill pathogens. Another method, integrated thermophilic sanitation (ITS), is of interest in order to decrease the energy demand.

Historiskt sett har den Svenska värmemarknaden dominerats av fjärrvärmen som i princip varit det enda kostnadseffektiva alternativet där det funnits tillgängligt. På senare tid har dock spelreglerna börjat på att förändras, bland annat på grund av värmepumparnas intåg, en förändrad energipolitik och ökade kundkrav ? vilket har lett till en mer konkurrensutsatt marknad. Denna studie syftar till att både kvantitativt och kvalitativt analysera fjärrvärmens konkurrenskraft jämfört med alternativa uppvärmningstekniker, med fokus på segmenten flerbostadshus, övriga- samt offentliga lokaler.Efter en inledande marknadsundersökning bedömdes värmepumpar i kombination med el eller fjärrvärme, samt pellets i kombination med RME, kunna vara konkurrenskraftiga med fjärrvärme. Därefter beräknades livscykelkostnaden för dessa värmesystem för en generell fastighet som en funktion av dess energibehov och utnyttjningstid, samt för ett antal typanvändare.

At the moment in central Täby there are small district heating network operated by Fortum Heat. The distribution network has an annual heat demand of about 70 GWh, which is supported by the network's two plants, Galten and Farmen. Täby as a region is rapidly growing and there are grand plans to develop the area. Estimated market potential for a future district heating expansion in Täby is very high and as early as in 2007 Täby decided to invest in a large-scale expansion. In autumn 2009 Täby did a procurement process, known as the ?Täby initiative?, to find a partner that could implement those expansion plans. To secure a cheap basic production the partner also need to build a power plant at Hagby recycling center. Despite high interest during initial state of the process, only one procurement offer were received and Täby suspended the contract in March the following year.

The river Göta Älv reaches between Vänern and Gothenburg and is the main raw water source for Gothenburg that supplies about 700 000 people with water. To protect and maintain a high water quality, continuously samples and water analyses are made throughout the river. In 1998 a protection area was founded between surte and Lärjeholm where the raw water intake is. This was made to increase the awareness of the importance to protect the water. However, there is a lot of contribution of untreated stormwater to Göta Älv within the protection area.Göteborg Water and Sewage Works commissioned this thesis where two areas, Tagene industrial area and Kärra residential area, with untreated stormwater outlets within the protection area are studied.

GE Healthcare wants to investigate whether additive manufacturing would be an alternative method in their workshops in the Umea? plant. Additive manufacturing is called 3D printing in everyday language and manufactures details by building them up layer by layer in an automated machine. The purpose of this work is therefore to investigate how mature additive manufacturing methods are and how they could be used at GE.The work has been divided into three parts. The first section investigates how additive manufacturing would work in the production workshop at GE.

The increased interest in a sustainable environment puts pressure on companies in the manufacturing industry. Rexcell Tissue & Airlaid AB (Rexcell) in Skåpafors produces paper to be converted into tabletop and hygiene products. Rexcell is certified according to the environmental management system ISO 14001, gaining competitive advantages by showing that the company works toward a sustainable environment and that they follow current legislation. The activities at the company are classified as hazardous to the environment according to the Environmental code. Every year, the activities are inspected by an independent inspector.

The Swedish government has a goal of achieving a fossil-free vehicle fleet in 2030. Heavy transport constitutes a significant part of Sweden's transportation sector and the vehicles are driven almost exclusively by fossil fuels. Siemens has developed eHighway, a concept for electric road systems enabling electrification of trucks, in order to reduce the environmental impact of heavy transports. This study aims to investigate the potential that eHighway has on transporting iron ore from the mine of Mertainen to a processing plant in Svappavaara. Electrified trucks are compared with conventional trucks, and diesel and electric trains.The evaluation was made with respect to energy consumption, environmental impact, and cost.

The Apollo butterfly, Parnassius apollo, is categorized as Near Threatened (NT) in IUCN Red List. Today in Sweden it is found only in strongly fragmentized populations. In the county of Stockholm, P. apollo exists exclusively in some islands of the archipelago and with one mainland population in Stora Vika. This study has the purpose of expanding the knowledge of the local conditions for the butterfly in the south parts of the county of Stockholm and thereby contributes to a sustainable land management that can preserve the Apollo butterfly.A comparative study was done between areas where the butterfly today have: a stable population (Stora Vika, Utö and Ålö), has disappeared (Muskö and Yxlö) or is strongly declining (north part of Ornö).

Många sjöar är idag påverkade av mänsklig aktivitet, bland annat är 1 % av Sveriges sjöar eutrofierade, däribland Ekoln. Ekoln är en stor sjö i Uppsala län söder om Uppsala som länge varit eutrofierad. Fyrisån och Örsundaån är de största inflödena till Ekoln och Sävjaån är ett betydande biflöde till Fyrisån. Kungsängsverket är Uppsalas reningsverk och har sitt utlopp i Fyrisån och som ett led i att minska eutrofieringen byggdes fosforreningen ut 1972. Fosforhalterna i Ekoln sjönk och algblomningarna blev färre.

Barley is one of the most important cereals cultivated in the Nordic countries. Climate change brings warmer and moisture climate which favors fungal diseases. In the cropland barley can be seriously infested with hard fungus attack. Since it is important that the yield bears a high quality it is of great importance to find varieties more resistant to attacks.Pathogenesis-related (PR) proteins are stress proteins induced in the plant in response to infection and abiotic stress (van Loon, 1997). PRs are shown to have antimicrobial activity differing between bacteria, fungi and oomycetes (Tandrup Poulsen, 2001).