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1262 Uppsatser om Damage on forest - Sida 39 av 85
CAP KC3-12 : Design and finite element analysis
In offshore oil production FMC Subsea systems use a product called cap. The cap´s mainly task is to protect hubface and seal areas on inboard hub against dirt, corrosion and mechanical damage under installation of a subsea system. A new model of a cap has been designed and analysed using finite element method. The model is called KC3-12 and has a new function, emergency release, which is a backup method for the ROV (remote operated vehicle) to release the cap from the hubface when it is placed under water. The cap KC3-12 was found to fulfil the criteria under the test load pressure, according to ASME VIII, div2.
Skogsbruksplanen och dess inverkan på den skogliga aktiviteten hos enskilda skogsägare i norra Sverige
Detta examensarbete är utfört på uppdrag av skogsägarföreningen Norra Skogsägarna (Norra) för att undersöka om innehavet av en uppdaterad skogsbruksplan har något samband med hur stor andel av den produktiva skogsarealen där avverkning och skogsvård årligen sker hos enskilda skogsägare i norra Sverige. Analyserna baserades på enkätsvar, data från skogbruksplaner, uppgifter om utförda avverkningar enligt Norra skogsägarnas verksamhetssystem NOVA, samt offentlig statistik från Skogsstyrelsen och data från Riksskogstaxeringen.
Examensarbetet söker besvara sju frågeställningar, tre handlar om den skogliga aktiviteten på privata enskilda fastigheter. och fyra syftar till att analysera Norras skogsbruksplaner med avseende på hur väl de följs och hur virkesförrådet förväntas utvecklas. Data analyserades med hjälp av olika t-test där insamlade data jämfördes med data från Skogsstyrelsens offentliga statistik och data från riksskogstaxeringen.
Resultaten visar att skogsägare som investerat i en skogsbruksplan (SBP) utför avverkning/skogsvårdsåtgärder på större andel av sin produktiva areal än de som saknar plan. Den åtgärdade andelen ökar från perioden före till perioden efter att skogsbruksplanen tas emot.
Besökarstudie i Kilsbergens rekreationsområden : en metod för att utveckla rekreationsmöjligheter på Sveaskogs marker
In this Master thesis an effective method is presented to find out what is requested in a forest or outdoor recreation. The aim with the study is to find out how Sveaskog can increase the general interest for experiences in nature and improve the access for recreation. Some questions that have been used to answer this purpose are: Who is visiting/not visiting the recreation area? How is it possible to increase the number of visits? The study is carried out in Kilsbergen and mainly centered around Ånnaboda, which is the natural place for people to meet at and undertake recreational activities.
The method that is used is a mail-survey that was sent to visitors and people living in Örebro. People living in Örebro represent potential visitors who live close to the recreation area.
Utvärdering av vibrationer inom vattenkrafts normer
The International Organization for Standardization (ISO) proposes vibration standards for the evaluation for machine damage due to vibration in rotational machines, where some vibration parameters are given to measure the vibrationgrade. This work evaluates the relevance of the vibration standards in hydro plants that are proposed by the ISO, and also investigates if there are methods used in other countries could have greater importance. Through statistical analysis of collected data we got a better understanding of relation among different vibration parameters, and also the importance of correct choice of the parameters for the evaluation of vibration. We have found that the vibration standards available today in hydro plants are not reliable for the judgment of vibration?s grade.
Vad är en framgångsrik kampanj? : En studie av branschens syn på PR- och reklamkampanjers effekter
This qualitative study examines how emergency people are framed in Swedish evening-, and local newspapers during the forest fire in Va?stmanland, Sweden 2014. The study also includes if there is any difference between the framing due to the location of the newspaper. The study is based on qualitative text analysis. The theoretical basis is representation, framing theory, media image, media logic and a few conceptions from crisis communication theory.
Service-Dominant logic i B2B kontext : Hur skapa mervärde på en eftermarknad
För att på ett effektivt sätt uppnå konkurrensfördelar på dagens marknad krävs det att företag finner nya strategier för att bli konkurrenskraftiga, en strategi är att verka på en eftermarknad. Företagskunder utgör en mindre marknad och beroendet mellan parterna är större (jämfört med privatkunder) påvisar detta att relationen är en viktig del i en B2B-miljö. Service-Dominant logic (S-D logic) beskriver hur ett paradigmskifte sker där kunden betraktas som värdefullt humankapital och företag vinner konkurrensfördelar genom långsiktiga relationer, värdeskapande tillsammans med kund och utbyte av kunskap genom interaktivt processarbete. Syftet med denna studie är att undersöka på vilka sätt företaget Komatsu Forest kan vinna konkurrensfördelar genom att implementera S-D logic. De strategier vi testar är front-line employee (FLE) ? personal med kundkontakt, butikslandskapet, varumärket och den interna kommunikationen.Studien baseras på kvantitativa studier med en kompletterande kvalitativ studie.
Tjäderns (Tetrao urogallus L.) vinterdiet i norra Sverige : är gran (Picea abies) viktig i vissa habitat?
In Scandinavia, capercaillie are often associated with pine trees (Pinus sylvestris) in winter, with pine needles as the main diet. Few dietary studies have been conducted in Sweden and winter diet is subject to little debate. The interesting thing is that this "pine specialist? is also found in spruce (Picea abies) forest habitats where pine is scarce or unavailable. In many studies outside Sweden (primarily Central Europe) spruce is regularly observed in the winter diet, but I have found no reports on the selection of the diet in spruce forest areas in Sweden.
Chachaklum, a viable initiative? : a stakeholder management approach towards a community enterprise
Due to poorly functioning local and regional markets, the smallholders in San Francisco, Petén, were dependent on intermediaries that took advantage of the smallholder?s distance to markets. In an attempt to secure income and strengthen their bargaining position, 189 smallholders joined forces through the creation of a social smallholder network, held together by a community based enterprise. This enterprise was initiated in 2011 with the help of government incentive programmes and NGOs that within a few years will leave the enterprise to auto regime.
This study treats the sustainability of a community forest based enterprise, Chachaklum, in northern Guatemala. The study identifies factors that enable smallholders to organize themselves in order to obtain business practices that support an improved standard of living.
Skiktning och strukturell utveckling i unga naturlika skogsplanteringar: :
Multilayered woodland types are an important part of the urban forest. The knowledge how to establish and maintain such plantations are not as deep as other knowledge fields concerning forestry. Therefore this study has looked upon how to achieve multilayered structures in young nature-like woodland plantations. As a theoretical base for the study three different major knowledge culture have been studied that concerns the subject, ecology, forestry and landscape management/design. This three theoretical framework concludes that many natural processes strive in the opposite direction of multilayered structures in their youth.
Skogsvårdsentreprenörers uppfattning om SÖDRA som uppdragsgivare
Södra in Oskarström has the ambition to become the best client for silviculture contractors and another aim is that the contractors should feel a strong sense of community with Södra. Several factors play an important role in order for these ambitions to be realized. The purpose of this study was to investigate how the contractors feel about their business relationship with Södra. The study was conducted during the spring of 2015 through a questionnaire which was sent to all ten silviculture contractors working with Södra in Oskarström. Overall, it seemed like the contractors were satisfied with the collaboration.
Energioptimering av Hemsö fästning med förslag på energieffektivare systemlösningar
The report is a master thesis about energy efficient measures for an underground facility Hemsö fortress.Several proposals are evaluated economically.Statistics of the electricity used and measurements of several heat pumps are analyzed to find energysavings potentials.The results indicate that several units of a dehumidification system are responsible for over 70 % of theyearly electricity cost. The air that is being dehumidified by these units can otherwise cause damage ofculturally important interior designs.The proposal with highest profit suggests an alternative method for dehumidification. The cooler in theair handling units in Hemsö fortress have capacity to dehumidify the air. However complementary fansneed to be installed to circulate humid air towards the air handling units. The solution can be implementedin three different locations within the facility.
Jordlöparfaunan i bestånd av contortatall (Pinus contorta) och svensk tall (P. sylvestris) 1987 och 2010
In the 1970´s the North American lodgepole pine (Pinus contorta) was introduced to Sweden in large scale. The lodgepole pine affects its new environment different from Scots pine (P. sylvestris), leading to a change in biological diversity.
Forestry today affects the ground beetle fauna (Carabidae). Habitat specialists associated with older forests are first affected. When the canopy closes again after a clear-cutting species that prefer open habitats reduces and those who prefer mature/closed forests increase.
In this study we compare differences in diversity and community structure of ground beetles in stands of lodgepole pine and Scots pine.
The legacy of the mill : a metal polluted forest soil in Gusum
Soils in a metal contaminated site on Stångberget in Gusum in southeastSweden were investigated and compared to relatively unaffected soils a fewkilometres away. Pollution came from historical release of untreated flue gasesfrom a brass mill. The objective was to find information on how high the metalconcentrations are, if metals from the polluted soil affect the surroundings andif the metal contamination affects the microbial community. The soil wasinvestigated using several different methods, such as field XRF measurements,chemical analysis of metal, carbon and nitrogen content, pH, acid neutralizingcapacity, texture, soil depth, field leach tests, sequential extraction and microbialfunctional profiles. The study showed that copper and zinc concentrationswere above Swedish Environmental Protection Agency guidelines for lesssensitive land use on the entire investigated area.
Potentiella arealer för ökad virkesproduktion i norra Sverige genom skogsodling med Pinus contorta var. latifolia, Larix sukaczewii, Abies lasiocarpa, Populus × wettsteinii och Picea mariana
Sweden is a country with few native tree species. According to Govt. 2007/08: 108, exotic tree species may be seen as an opportunity to increase the growth of tree volume in Sweden. Potential areas where explored In this work for cultivation with Pinus contorta var. latifolia Engelm., Larix sukaczewii Dylis, Abies lasiocarpa (Hook.) Nutt., Populus × wettsteinii Hämet-Ahti (tremula x tremuloides) and Picea mariana (Mill.) Britton et.al.
Linderödsgrisen : en inventering av populationsstruktur och produktionsnivå
In 1993, Sweden signed the Convention on Biological Diversity and thus agreed to conserve our indigenous biological diversity. As a part of the convention, Sweden is obliged to conserve a number of domestic animal breeds and among them the Linderöd pig. In 1952, the zoo, Skånes Djurpark, took care of a pregnant sow that was regarded to be related to the old "forest pig". The old forest pig was thought to have been extinguished by the early 20th century as a result of the ban on boars not approved by state inspectors. However, according to later accounts, several farmers still kept some of these non-approved pigs.