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833 Uppsatser om Plant available - Sida 49 av 56
In search for sustainable alternatives to lawns : connecting research and landscape design
A large part of Sweden?s green, urban landscape is covered by lawns. Approximately 80 000 ha of maintained grass lawns are part of public courtyards, schoolyards, parks, golf courses, sport fields and traffic environments. Beyond this figure, the lawn is also an essential element in most private villa-gardens. Lawns have become a universal phenomenon through the dispersion of landscape aesthetics from the Western world.
Leaf structure and localization of a transgene protein in barley
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).
Skötselmål som en del av gestaltningen : för parker i kommunal regi, med en studie av två parker i Landskrona
There are mainly two ways to transform the design of an existing park. You could either make a replanning of the park, an act that changes the design and the plant material in one swoop. Or you could use the management to change the expression of the park. To be able to develop the parks with the help of management, some form of goal is needed, that can make the management of the park strive towards an expression for the whole park as well as its individual parts. Among the documented goals, for individual parks and park management, which exist in the municipalities today, there seems to be a weak link between the all-embracing goals and the management that is carried out in the parks.
Energianalys av hygieniseringssystem : jämförelse av befintlig pastörisering med integrerad termofil hygienisering på Kungsängens gårds biogasanläggning i Uppsala
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 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. The method implies that the substrate is sanitized during ten hours in the digestion chamber, where the temperature is 52°C.
Ett förändringsförslag av Eric Sigfrid Perssons Malmgården - en takträdgård
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).
Axellagring till Klasserare
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.
Odlingens och lagringens inverkan på utsädes grobarhet :
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.
Utvärdering av programvaror för automatisk 3D-modellering från terrestra laserdata i industrimiljöer
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.
Energianalys av hygieniseringssystem : jämförelse av befintlig pastörisering med integrerad termofil hygienisering på Kungsängens gårds biogasanläggning i Uppsala
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.
En systemlösning för en framtida fjärrvärmeutbyggnad i Täby : ur Fortum Värmes perspektiv
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.
Kvantifiering av föroreningstillskott från dagvatten inom skyddsområdet för Göta Älv : en simuleringsstudie med modellen SEWSYS
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.
Additiv tillverkning : Ett nytt alternativ inom tillverkningsteknik
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.
Påverkan på yttre miljö ? Identifiering av miljöaspekter och riskkällor
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.
Fo?rutsa?ttningar fo?r elektrifierade lastbilar med eHighway inom svensk gruvindustri : En ja?mfo?relse av olika transportslag mellan Mertainen och Svappavaara
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.
Minskad utbredning av apollofjäril, Parnassius apollo, i södra Stockholms län : En studie av möjliga faktorer utifrån artens habitatkrav
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).