Sök:

Sökresultat:

1207 Uppsatser om Plant composition - Sida 27 av 81

Bioenergi från röjningsgallringar : en jämförande studie av fyra flödeskedjor från avlägg till förbrukare

When the Swedish Forestry Act was changed in 1994, brushing of young stands became non mandatory. Since then the annual need for brushing in the country has increased by about 100 000 hectares per year. In later years the price for biomass energy has increased to the same level as pulp wood. The high price on biomass energy and the large areas of stands in the need of brushing has created a new market with its own technical, economical and environmental conditions. There is a development of various techniques to manage the forestry stands with late brushing.

Växter vid havet :

Detta examensarbete behandlar växter som trivs vid havet. Arbetet baseras på frågan vilka växter som tål ett vindpinat och utsatt läge? Arbetet beskriver vad man skall tänka på när man börjar planera en trädgård vid havet. I arbetet har jag tagit upp vilka träd och perenner som man kan använda sig av när man skall skapa en trädgård vid havet. Syftet med arbetet är att man skall kunna använda sig av mitt arbete när man åker till plantskolan för att inhandla växter.

Okej vi bor tillsammans och ska klara det, men nu vill jag göra något annat : en studie i den svenska relationskomiken

Swedish films are often based on the genres romance and comedy. The films dealing with relations and comedy can almost be seen as a genre of its own. The composition of the complex relation between the audience and the genre is the primary research focus of this thesis. With the teoretical ground in intertextuality, sociology and romances the thesis examines three relations in three different films. The films english titles are, Adam & Eva, Making Babies, and Double Shift.

Pellets - en framtidsmarknad?

With higher prices for oil and increased focus on fossil fuels impact on the environment the heating sector are searching for alternative fuels. Pellets are a quite new product whose production has risen exponential in recent years. Today there are small-, medium-and large-scale users, where the large-scale consumers are the heating sector. The heating sector is mainly using oil to cover the increased demand during cold periods. The purpose of this study is to analyze the potential of pellets if it would replace thermal power plants oil and coal. The study will also analyze the economic impact a conversion would mean for a heating plant and if the pellet is a reasonable substitute. 2008 statistics from the Swedish district heating association were analyzed and a calculation was performed to determine how many tons of pellets is needed to replace coal and oil.

Skogsvårdsentreprenörer i norra Norrland 2009 : företagsbeskrivning och analys av kompetensens betydelse för planteringsresultat

The number of silvicultural contractors has significantly increased in the last decades, and among its main clients are the forest companies. The purpose with this study was to describe the contractors that worked with planting in Norrbotten and Västerbotten in 2009 for Holmen Skog, Norra Skogsägarna, SCA Skog and Sveaskog and also examine if there was any correlation between the contractors? competence and the quality in the planting they achieved. A survey was made among 47 contractors with a questionnaire who performed planting for the forestry companies in 2009. 27 contractors answered the questionnaire and 4 representatives of these contracting companies took part in an extensive interview.

Undersökning av svetsegenskaper för svetsning med rörtråd kontra homogen tråd

Welding is a common method for joining of metal or plastic construction parts. This report describes several different weld methods in general terms. The report focuses on the GMAW method, specifically MAG welding.A case study has also been performed for the company Wenmec. The task received from the company was to compare the mechanical properties of joints welded with the tube electrode called Nittetsu SM-3A and joints welded with the homogenous electrode called ESAB Aristorod 12.63. Both types of weld joint were welded with the MAG method with an Argon based shielding gas with 18% CO2.

Det är kämpigt att vara arbetslös.

This composition is an qualitative study about unemployment and working life. The point of the study has been to make a larger understanding how unemployment can perceive by the individual and how this person can see and plan for future working life. This has been study with help from 8 intervirws. The paticipants has been umeployed between  6 months and 5 years, and they have workt arleast 5 year before the unemployment.The study has show that it is many different components who contribute to how the individual perceive the time in unemployment and how the planning for the future looks like. The persons who has been intervirws perceive their psycal health as god,, even but unemployment.  The study has even show that all the persons in the study want to come out from the unemployment.

Gårdsbaserade system för spannmålshantering i den framtida Lantmännenorganisationen :

The Swedish cooperative Lantmännen Ekonomiska Förening has initiated a project labelled "Operation Blåljus" that includes an extensive program for closing down elevators. The number of elevators will be reduced from 92 to approximately 15 after harvest of 2007. The objective of Blåljus is to increase the price of grain with 10 öre/kg. A project has been initiated at the Lantmännen Grain division where the purpose is to provide the farmers with support in their decisions and practical advice how they can load a 35 ton grain truck on 30 minutes. The result from the project will serve as a support system to the farmer in his ambition to achieve cost efficient systems to load a truck with grain on the farm.

Anaerob psykrofil behandling av hushållsavloppsvatten i UASB : Utvärdering av kapaciteten hos en två-stegs UASB-reaktor för behandling av hushållsavloppsvatten

Hammarby Sjöstad is a new district in southern Stockholm. A main objective with the Sjöstad project was to halve the environmental impact compared to other construction work. The environmental goals involve a halved water consumption rate, a local treatment of storm water and trials aiming to extract nutrients from the waste water. Sjöstadsverket is an experimental treatment plant used for testing new treatment processes for domestic waste water from Hammarby Sjöstad. The results are to be compared with the conventional process used at Henrikdals treatment plant today.

Torvmarkernas utveckling i östra Uppland

This report is about a couple of specially chosen peatlands in eastern Uppland, Sweden. It concerns their development between the year 1922 and 2012. The historic fact originates from a large investigation of peatlands in the south of Sweden made by the Swedish Geological Survey, SGU, in the 1920?s. To be able to choose peatlands an analysis in GIS were made, in which we were able to find locations good enough for our field investigation. During the field investigation we bore to find nice peat cores that later went through several analyses in a lab.

Intuition, Teknik och Erfarenhet : Observation av en lärandeprocess

Detta är en studie om lärande- och skapandeprocesser. Mer specifikt innefattar studien en observation av hur jag arrangerar 3 låtar för olika instrument under en tidsbestämd period. De frågor som behandlas är vilka tekniker jag använder, vilka problem som uppstår och hur det fungerar att arrangera på tid. Slutsatsen av hela observationen har visat att det är en bredd av faktorer som samspelar i kompositionsprocessen. Det har visat sig att jag applicerar intuition, diskursivt tänkande, musikteoretisk teknik och erfarenhet i arrangeringen av musik.

Proteinkvalitet och biogena aminer i ensilage ? effekt på mjölkkors hälsa & foderintag

The aim of this paper was to explain protein degradation in silage and protein quality and biogenic amines in silage and their effects on the health of the dairy cows. After harvest-ing, the plant proteases degrade the proteins in the plant. The protein degrades to different fractions with different digestibilites in the rumen. Fraction A contains non- protein nitro-gen which is peptides, free amino acids and amines. True protein is in the fraction B and is further divided into three subfractions depending on their solubility.

Korrigering av hemodialyspatienters torrvikt med vägledning av bioimpedansspektroskopi

Bakgrund: Felaktiga torrvikter a?r ett problem inom hemodialysva?rden. Det kan orsaka va?rdskada i form av komplikationer och lidande, med symtom som tro?tthet, blodtrycksfall och sendrag fo?r dialyspatienter. Det finns ett behov av implementering av evidensbaserade metoder som minskar risken fo?r fel i torrviktsbesta?mning.

Höjdtillväxt, överlevnad och skador i praktiska etableringar av hybridaspbestånd i södra Norrland, anlagda 2004-2011

Hybrid aspen is a crossbreed between European and North American aspen. It is a fast growing tree species that has shown strong growth in the South of Sweden. The follow-ups that have been made on hybrid aspen stands, have mainly been done on plant material in the South of Sweden. In the North of Sweden, only occasional studies have been made, and the knowledge of Northern hybrid aspen stands is, thus, unsatisfactory.In the South of Norrland, land owners have planted hybrid aspen, but what kind of plants it is, and how well these stands have established, is not ascertained, since data has not been compiled on the subject.The objective of this study is to evaluate practical plantations of hybrid aspen in the South of Norrland regarding height growth, survival and damages. The ambition is to increase the knowledge about practical plantations regarding height growth, survival and damages, and from the conclusions thereof, give recommendations for future establishments of hybrid aspen in the area.For the study, eight hybrid aspen stands in the South of Norrland were localised.

Deaktivering av metanisering katalysatorer

A titania-supported nickel catalyst was prepared and tested in methanation in order to evaluate its catalytic properties (activity, selectivity and specially, activity loss), and compare it with an alumina-supported nickel catalyst.The titania-supported catalyst did not only show higher stability than alumina, but also presented a different cause of deactivation, carbon formation. In addition, a kinetic model was obtained for the titania-supported catalyst, and a study of the effect of different operating conditions (temperature, composition and partial pressures of synthesis gas and water) on the deactivation rate and carbon formation of this catalyst was performed.

<- Föregående sida 27 Nästa sida ->