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273 Uppsatser om Norwegian Spruce - Sida 14 av 19
Obehörig vinst -- en möjlighet eller onödighet?
SummaryUnjustified enrichment is an obvious part of the jurisprudence in the majority of countries in Europe. But not in the Nordic countries, and certainly not in Sweden. This depiction of the Swedish posture is based mostly on Hellner?s thesis from 1950. A lot has happened since then, not to mention Sweden?s entry in to the EU.
Lönsamhetskalkyl för produktion av gran på markavvattnad och askgödslad myrmark
In Sweden there are about 4 million hectares of bare peat (mire). This land has great potential to be transformed into productive forest land, provided drainage is carried out and, in some cases, even fertilization with ashes. Drainage of mires is necessary because the high groundwater table prevents trees from growing due to reduced oxygen availability. Some of the key nutrients that trees need to grow appear in too small quantities in mires, especially potassium (K) and phosphorus (P). Ash from the combustion of biomass contains these elements and is therefore suitable as a fertilizer.
En interoperabel sjukvårdskedja? : En komperativ undersökning av Sveriges och NATO:s sjukvårdskedjor och doktriner
Interoperabilitet blir viktigare och viktigare för Sveriges del, även för funktionen sjukvård. Denna uppsats kommer att behandla likheter och skillnader mellan sjukvårdsdoktriner, handböcker och reglementen med NATO:s och framförallt Norges motsvarigheter, för att undersöka om den svenska Försvarsmakten sjukvårdsorganisation är interoperabel, och för att finna saker som kan förändras för att öka effektiviteten och interoperabiliteten. Under uppsatsen dras slutsatser som att svenska Försvarsmakten tagit åt sig stora delar av de kunskaper som NATO tidigare har gjort. Sverige ?kopierar? delar av NATO:s doktrin för sjukvård, NATO AJP-4,10 Allied joint medical support doctrine.
Förbränning av pellets framställda av defibrerad granråvara :
Fuel pellets are in Sweden mainly produced from sawdust and cutter shavings. Before the pelletising process the raw material is dried to attain consistent moisture content and ground up in a hammer mill. In the densification process (pelletising) the ground material is forced through holes in a rotating die. This heats up the wood particles which cause them to soften and self bond. After the process the pellets are cooled, sieved and bagged.
The milling process creates a wide range of particle sizes.
Betydelsen av kolkälla och mikrobiell fysiologisk status för temperaturresponsen (Q10) vid nedbrytning av organiskt material :
The increasing threat of climate change has led to a increased need for models to predict future climat. In these models the changes in the soil carbon pools due to changes in microbiel degradation of the organic matter can lead to both positive and negative feedback-effects. There is however a lack of consensues on the temperature respons on degradation soil organic matter. This paper aim to give a better understanding on the factors controlling the temperature respons. The factors studied were the carbon substrate qualitity and the physiological status of the microorganisms.
Increased growth in Norway spruce (Picea abies (L.) Karst.) through small annual additions of nitrogen (N) fertilizer
This project investigated how elevation and vegetation type influences variation in plant litter phenolic content and protein precipitation capacity among and within common plant species for two different vegetation types, heath and meadow, in a subarctic ecosystem in the Abisko region of northern Sweden. As nutrient availability generally decreases with increasing elevation as a result of decreasing temperature, I hypothesised that phenolic content would increase with elevation and be higher on the heath than the meadow. To test this, the total phenolic content and protein precipitation capacity was estimated in leaf litter from 13 species in both heath and meadow vegetation across an elevational gradient ranging from 500 to 1000 meters above sea level (m.a.s.l.) in the study region. The results showed that elevation and vegetation type both had a strong impact on both variables. Total phenolic concentrations decreased with elevation for the meadow, and were greater for the heath than the meadow.
Analys av sprickdetektion vid automatisk avsyning av granvirke : med avseende på sprickors bredd, längd och djup
Examensarbetet syftar till att hitta samband mellan ytliga sprickor hos virke, i form av dimensioner och karaktärer, som dagens maskinella avsyningssystem inte klarar av. Tyngdpunkten i projektet har legat på att identifiera eventuella samband mellan verkligt djup hos sprickor och de ytliga sprickmått som kan uppmätas med automatisk avsyning av WoodEye. I huvudsak har projektets praktiska undersökningar gått ut på att bestämma sprickors ytliga dimensioner, djup, typ och position med hjälp av automatisk avsyningsutrustning (WoodEye) samt genom manuell uppmätning i ett antal itusågade sprickzoner. Det provmaterial som använts i utförda försök och som legat till grund för efterföljande sprickanalyser har varit av sådan karaktär att det kunnat jämställas med konstruktionsvirke som normalt sett hållfasthetssorteras enligt europasstandard SS-EN 14081-1.I projektet har 568 sprickor, fördelade över 8 olika spricktyper, analyserats. Av erhållna resultat har det konstaterats att störst respektive minst medelbredd uppvisades hos kådlåpor respektive kantsprickor, störst respektive minst medellängd uppvisades hos splintsidesprickor respektive kådlåpor, samt att störst medeldjup uppvisades hos fäll-, kap- och stormsprickor.
Specialpedagogik förr och nu : Tre stockholmsskolors specialpedagogiska arbetssätt
AbstractThis paper is about the organisation of the special needs education in three nine-year compulsory schools in Stockholm and the pedagogical thoughts and theories that underlie these organisations. The main purpose of the paper was to investigate whether the special needs education of these schools should be interpreted in accordance with a segregating or an including view on integration as these perspectives are presented by the Norwegian professor Peder Haug. In addition to this I also wanted to investigate if there were any historical arguments in favour of one or another of these perspectives that were still being put forward in today?s debate.The methods that I used were a study of literature regarding special needs education and interviews of a qualitative character with three special educationalists and a special teacher that were working on three different nine-year compulsory schools in Stockholm.The result of the study shows that a big part of the special needs education of the schools that I visited can be interpreted in accordance with the segregating view on integration.The organisation of the special needs education of the three schools differed slightly from school to school but the common trait was that the largest part of this work took place outside of the student?s regular classroom and sometimes outside of the scheduled school day.Two of the schools had special groups where students that were believed to have a need of special education got some, or their entire schooling. That the schools chose to build a big part of their special needs education upon solutions that should be regarded as segregating was motivated on the basis of an effect oriented view on education.
Kvarteret Veiberg : från sluten innergård till öppen mötesplats
The object of the thesis is to propose a new design for the neighbourhood of Veiberg that is situated in the small Norwegian town Jessheim. My approach was to first make an analysis of the whole community and the structure of the town, and then gradually focus on the actual neighbourhood to continue the research there. On the basis of my research the block will be redesigned. The research will lead to a well-planned design of the neighbourhood, which will adapt it to its surroundings in a sustainable and constructive way.
The project will lead you through the history of the town and the intentions and aims of the municipality. The project also examines the structure of the town and the function of the neighbourhood in the town today as well as investigation of the history, the structure and the qualities in the area.
Plantering av barrplantor på hösten : överlevnad och tillväxt
Detta arbeta har utförts för att undersöka hur höstplantering av täckrotsodlad gran (Picea abies) och tall (Pinus sylvestris) överlever och utvecklas jämfört med vårplanterad. Detta i ett led för att se om man kan utöka planteringssäsongen för att få en jämnare arbetsbelastning över säsongen både i plantskolorna och ute i fält. Man har undersökt hur en planteringstidpunkt på sensommaren och hösten påverkar granplantors överlevnad jämfört med plantering på våren. Studien är utförd som en survey studie i södra Sverige på täckrotsplantor av gran som planterats på medelboniteter 2007-2009 och inventerats 2010. Höst och vårplanterade granplantor är jämförda parvis med samma planttyp, ålder, proveniens och geografiskt område.
Hur en ökad marktemperatur påverkar fotosyntes och markrespiration i en boreal skog
During the year of 2008, a powerful earthquake hit the southern part of Iceland, which changed the geothermal conditions in the area around the city of Hveragerdi. Elevated soil temperatures in a nearby forest plantation have contributed to a unique opportunity for researchers to study how an increased soil temperature affects the boreal forest ecosystem, something that partly can be connected to the climate changes which are happening today. The boreal forest is representing a carbon sink and a buffert for the emissions that occurs. Changes in this ecosystem will for that reason contribute to major impact for the global carbon cycle. To study the impact of how elevated soil temperatures affects different processes in a plantation of Sitka spruce, studies were made on the photosynthesis of the trees and the respiration from the soil.
Skötselåtgärder vid nyetablering av skyddszoner vid bäckar i södra Värmland :
Buffer zones play an important role for the water quality in our watercourses. When harvesting a forest close to a watercourse a buffer zone should be left. When it's not left, it will lead to radical changes in the environment for the water organisms. The overall purpose of this thesis was to illuminate the production- and environmental thinking when establishing new buffer zones in south of Värmland. The partials goals were to determine choice of tree species, ways of regenerate, occurrence of soil scarification and the occurrence of machine tracks in newly established buffer zones.
Stubblyftningens initiala effekt på emissioner av växthusgaser från en granmark i Småland :
In order to reduce greenhouse gas emissions from human activities fossil fuels will have to be replaced with renewable energy alternatives, such as bioenergy. Sweden has a great potential to produce bioenergy derived from forest products and there is currently a great interest within Sweden in using stumps for bioenergy production. However, the environmental consequences of the method need to be investigated before stump removal can be performed on a large scale. Swedish forest soils contain large carbon pools and a different land use may change conditions so that soils that presently act as sinks of carbon could potentially turn into sources of carbon release instead.
This study investigates the initial effects of stump harvesting on the emissions of three greenhouse gases, carbon dioxide, methane and nitrous oxide. The emissions were measured from the soil surface in a Norway spruce forest located in the southern part of Sweden.
Kartläggning och analys av försörjningskedjor, Setra Group - två fallstudier :
This study concerns mapping and analysing two different Supply Chains at Setra Group.
Setra Group is Sweden?s biggest producer of solid wood and is primarily owned by Sveaskog, Mellanskog and LRF. The Company consist of twelve sawmills, five planning mills and an organisation for distribution of building material.
This study maps one chain for Swedish Glulam standard beam and one chain for solid pine flooring on export to Japan. The glulam chain is based on spruce as raw material and includes all actors between sawmill and the Swedish building material retailers.
Samspel, etablering och koppling mellan naturgas och biogas
Sweden has a natural gas grid extending along the west coast, from Trelleborg to Stenungsund. There are also several smaller local networks where a planned natural gas pipeline from Skutskär to Hofors prompted the need for a comprehensive study. This study examines the linkages that exist in terms of technology and market of natural gas and biogas in Sweden. Sweden has set high targets for the future with ambition to become independent of coal and oil as energy sources. Since 1985, a part of the solution has been import of Danish natural gas.