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2654 Uppsatser om Random field - Sida 26 av 177
Betydelsen av taggbuskar, ljus och hävd vid föryngring av ek (Quercus robur)
Many species and hence biodiversity depend on old, large oaks (Quercus robur) with hollow trunks. The populations of oak-living organisms have to migrate to a nearby old oak in order to survive the death of the host. The oak district south of Linköping, Sweden, is unique in area and the number of old oaks. It is anyway doubtful whether regeneration of oak will secure future continuity. Oaks are light-demanding and thrive in open pastures.
Vilken är den teoretiskt optimala toppdiametern på bokmassaved vid motormanuell avverkning?
The bioenergy market has been introduced relatively late in a perspective of the Swedish forestry. Nowadays branches and tops are used more frequently as bioenergy after harvesting. Therefore, it has developed a competitive situation between pulpwood and bioenergy. This situation has even established some questions. Two examples of these are:
? At what top diameter should the final piece of pulpwood be crosscut to get the best economically result?
? Should the top diameter, at the final piece of pulpwood, be crosscut at a thicker or smaller diameter than what is done today?
The purpose of this report is to answer these two questions when the harvesting is made motor manually in beech stands.
Avskaffandet av revisionsplikten : En studie om vilka faktorer som påverkar små aktiebolags val att ha kvar revisionen
Background: With the removal of audit requirement for companies in Sweden from the first of november 2010, a lot of companies has chosen not to keep the audit requirement. So far 57 percent of the small companies has chosen to keep the audit, in spite of that they don´t need to which led us to the problem statement: Which are the factors that affect a small limited company to choose to keep the audit, in spite that now there is a possibility to choose not to use audit anymore?Purpose: The purpose of the essay is to examine why small limited companies choose to keep the audit, in spite that now there is a possibility to choose not to use audit?Method: This research founds itself in a qualitative study with a deductive research approach. We have been studying secondary data in books and articles and preformed 29 phone interviews with small ltd company owners in Sweden. The selection consisted of 14 companies with credit debts and 15 companies without credit debts.
Hjärtsäkerhet på svenska hälso- och fitnessanläggningar
In the United States, see recommendations for cardiac safety of sports arenas but also to health and fitness facilities. However, this does not exist in Sweden today. Objective: The purpose of this study is to identify the health- and fitness facilities today are equipped with respect to cardiac safety and specifically relating to preparedness for cardiac arrest. Method: Quantitative data are collected and compiled with the help of a questionnaire. The questionnaire contained 19 questions in total.
Söktjänster för akademiskt bruk. En jämförande undersökning mellan Google, Google Scholar och Scirus.
This paper is a comparing study of the retrieval effectiveness of the search engines Google, Google Scholar and Scirus. The aim is to find out how good they are at retrieving relevant academic material in the research-field of Library and Information science. The thirty search questions where based on actual information needs collected from exams within the field of Library and Information Science. This method was used to prevent that none of the search engines were given an advantage because of construction of the information needs. The first twenty retrieved documents on the retrieval lists are examined for academic content and relevance.
En händelsestudie av reporäntans effekt på den svenska aktiemarknaden
Syftet är att undersöka om det finns möjlighet att uppnå överavkastning på den svenska aktiemarknaden genom att använda sig av information om förändringar av reporäntan. För att uppfylla vårt syfte utför vi en händelsestudie med en kvantitativ metod och en deduktiv ansats. Genom att studera nio branschindex och OMX index vid reporänteförändringar, undersöker vi om det föreligger någon skillnad dem emellan. Att en onormal avkastning kan uppnås kan statistiskt säkerställas för OMX index dag 1 efter en annonsering om en sänkning av reporäntan. Vid en höjning finner vi däremot inga bevis för en reaktion på marknaden.
Ung, samtida och postmodern : En studie av det svenska konstfältet under 1980-talet utifrån Lars Nilssons konstnärskap
The aim of this thesis is to study the Swedish art field during the 1980s, from the perspective of the artistic production of Lars Nilsson. During this decade he became one of the most well known young artists associated with postmodernism.The thesis is divided into three parts, where the first part examines different influences and aspects of the art of Lars Nilsson, as well as the contexts he was a part of. This is performed through a chronological as well as a categorizing presentation, based upon different exhibitions where Nilsson participated during the 1980s.In the second part the subject is the Swedish art field, and how Lars Nilsson came to be part of a a new established category of a young generation of artists, mostly born in the 1950s, who were associated with youth, postmodernism and contemporaneousness. This part also puts attention to the importance of Lars Nittve, then art critic and curator, in introducing postmodernism, as well as establishing this new categorization of artists in Sweden.The last part of the thesis studies four different group exhibitions, and how they all exemplify how "a younger generation of artists" were to be connected with notions of postmodernism and contemporaneousness through curatorial practice. Lars Nilsson participated at the thirst three of these exhibitions.
Den kommunala folkhälsosamordnaren söker sin arbetsroll
Coordinator of public health has recently become a new profession in the field of Health Promotion. During the last few years the pedagogic perspective has been increasingly important for the coordinators as a way of adapting their work methods to the circumstances. The conditions for coordinators of public health differ between municipalities and thus their tasks and responsibilities may vary with the local structure. According to the literature there are several ways to conduct Health Promotion and it is in the hands of the coordinator to adjust the methods to fit local conditions. The purpose of the study was to examine what influences the coordinators of public health and how that affects their work methods.
Ett slott i romantikens lövsal : skogsutveckling på Château du Grand Val - att utveckla en integrerad gestaltande skogsbruksplan
The work presented here aims to give the owners ofChâteau du Grand Val, Roland and Marie Nilssond?Aubigné an integrated creative forest management planin which their goals with the property is heeded, andwhere the plan is so clear that they can follow it withoutmuch difficulty.This work has come about through the normal processesof forest management plans, landscape architecturalproposals as well as through field trips, field andliterature studies, and our combined experience fromour studies. The study visits, both on location in Brittany,France, but also in other places, as for instance Högestad,has provided the background information that formedthe basis of our analysis and the proposal that is derived thereof. Some suggestions, which we consider importantto the overall impression of the property, is provided amore focused and detailed solution, while other parts,which are important but can either benefit from havingdynamics in the design process or will be adapted toadjacent sites, are developed using a more generalapproach. In some cases several possible developmentprinciples are presented.The proposal presents a detailed plan for themanagement of the forest from the experience, wildlifeand forestry economic standpoint.
Flödesmätning i vattenkraftverk : Studie av alternativa mätmetoder
Flow measurement is one of the greatest challenges in order to calculate efficiency in hydropower. Most hydropower plants in Sweden use differential pressure methods for flow measurement. These methods are dependent on constant conditions in the waterways. A change in these conditions, like turbine improvements, prevents differential pressure methods to verify efficiency improvements. Since efficiency improvements can?t be verified by one measurement system, another method, which isn?t affected by changing conditions, can be used.
Kalkningens påverkan på fosforlöslighet : skakförsök baserade på två svenska långliggande kalk- och fosforgödslingsförsök
Eutrophication is an environmental problem that affects more than ten percent of Swedish lakes. Excess nutrients increase the growth of algae, and cause major problems in the ecosystem through oxygen-free bottoms, fish kills, and at worst dead bottoms. Agriculture accounts for 44% of human emissions of phosphorus to lakes and rivers. Leaching occurs of particle bound phosphorus and of dissolved
phosphate. The amount of phosphate in the soil solution that may be leached is partly due to the prevailing pH in the soil solution.
The purpose of this study was to investigate how the relationship between phosphate solubility and pH was affected by liming.
Analys av data från flyglaserscanning :
In forestry there are always needs of forest data to make good strategic decisions of different actions and economic winning. Usually this data gets from field-estimations made by forest workers with expensive costs and sometimes unsatisfied quality.
StoraEnso Skog is a great forest company in Sweden and they have part of the responsibility of the forest own by Bergvik Skog. Bergvik Skog is owner of 1, 9 million hectares productive forest land. Both Bergvik and StoraEnso have great interest in new inventory techniques to get the important forest data.
The company Foran Remote Sensing offers the opportunity with airborne laserscanning of forest and forest land. Foran got the mission of Bergvik and StoraEnso to laser scan Bergviks possession in Älvdalen, Dalarna.
Underhållsarbete på krafttransformator : En studie på genomförande av underhållsarbete i transformatoranläggningen med optimeringsförslag.
This report is the result of a project in the course Independent Projekt in Molecular Biotechnology at Uppsala University during the spring of 2014. The foremost purpose of the course is to give students the opportunity to carry through exstensive work in a project environment. This project was formed based on a comission from the biotechnology company SweTree Technologies, and the goal has been to compose a summary of the different techniques and methods that exist in the field of mass propagation of trees through the method of somatic embryogenesis.The project group has obtained information about the area mainly throgh reading patents, trying to find key components and bottlenecks in other companies? somatic embryogenesis technologies. This paper is divided into different sections, containing the patents of the automation of different steps in the process.
Spännkraft på bandavskrapare : Utredning och konstruktion
This thesis was performed at Vendig AB which is a company that develops and sells products such as belt scrapers for conveyor. The thesis is divided into two parts, one part where it´s investigated which tension force is required to tighten Vendig AB´s scraper Hampus against the belt in a correct way. The second part is called mechanical design and here a new and more compact tension device is developed.Field studies has been conducted at a couple of Vendig AB´s costumers to get a knowledge base about how Vendig AB´s products are used, how they function and the environment they operate in. During one of the field studies the force between the scraper and the belt was measured. The result from the measurements, together with a report from LKAB [1], were evaluated and summarized in a table.
Lilla Hjärtat och alla små brokiga bibliotekarier ? En studie av hur Lilla Hjärtat hanterats på folkbiblioteken
This bachelor's thesis is an investigation into the public libraries'actions following the debate of Stina Wirséns character LillaHjärtat, featured in picture books and films for young children.The character was accused of being racist, due to its similarity tostereotypes such as pickaninnies. Because of this, the books'existence in public libraries was questioned.The purpose of this study is to investigate how librarians havedealt with these books, and what they have based their decisionson. To explore the background of these decisions we have usedPatrick Wilson's theory of cognitive authority (1983). We haveexamined which cognitive authorities have been used in thedecision-making process of how to handle the books containingLilla Hjärtat, and why these cognitive authorities have beenchosen. The method used in the study is qualitative interviewswith seven librarians working in public libraries throughoutSweden.The results of the interviews show that the librarians? mostprominent cognitive authorities have been authors and illustratorsof children's books.