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1245 Uppsatser om Mixed boreal forest - Sida 57 av 83

En vindkraftparks inverkan på Gävle Energis elnät

The effects from a planned wind farm on the grid utility Gävle Energis electrical grid have been studied. The wind farm is planned to be built in the forest 15 km north of Gävle and will have 23 turbines with rated power from 2 to 2.5 MW, resulting in a total installed power between 46 MW and 57.5 MW. The grid connection will be made at 70 kV. The aim of the analysis was to determine what effects the wind farm would have on the power grid in the form of electrical disturbances (flicker etc.), need for new investment and raised operational cost. To allow the connection of the wind farm technical solutions (new lines, power stations and grid reinforcements) have been constructed.

Grooming behaviour in the Red-tailed guenon

The behaviour of the red-tailed guenon (Cercopithecus ascanius) was studied over the course of nine days in the Sabaringo forest surrounding Kichwa Tembo Tented Camp near the Masai Mara National Reserve, Kenya. A focal animal instantaneous sampling method with a one minute interval was used to record the behaviours of the monkeys for approximately 12 hours a day, the day being divided into six shifts á two hours. This method has proven successful in earlier studies of red-tails in this area. The study subjects included both lactating and non-lactating females, juveniles and on some occasions the resident male. The purpose of this study was to examine the grooming behaviour of red-tailed guenons and whether or not the occurrence of grooming varies depending on monkey type (lactating or non-lactating) and time of day.

Utveckling av en diameterklassmodell för grandominerade bestånd i Sverige :

Growth models are very useful tools for forestry to predict growth and yield. With growth models and optimising tools you can manage forest stands in a way that maximize benefit and income. There are three major types of growth models. Stand models; stage structured models and single-tree models. The most advanced models give the most accurate forecasts.

Potential för energiklippdrivare i Skåne : markägarintresse, råvarutillgång & ekonomi

As the Swedish governments long term goals include a reduction of fossil fuel dependency, increasing pressure is placed upon energy companies to create and develop new solutions for renewable energy. The following case study was done in collaboration with the company Sydved Energileveranser AB and one of their contractors, Enarssons Skogsentreprenad AB. The objective of the study is to examine the bioenergy situation in region of Skåne and evaluate the potential solutions in the region for a forest-fuel assortment, based on a bioenergy-cutting-system. As a part of this study I have compared ordinary manual cuttings done with a chain saw and cuttings made using the new ?bio- energy cutting system?. The cuttings made under both systems were tested in areas near agricultural fields or pasture land in order to maintain an open landscape.

Skogsägarföreningarnas utveckling efter krisen i slutet på 1970-talet : en analys av förändringar och trender

De första skogsägarföreningarna bildades under 1910- och 1920-talen för att i första hand främja en bättre skötsel av böndernas skogar. Under skogsägarföreningarnas snart hundraåriga historia har deras roll sedan förändrats. På grund av skogsindustrins starka ställning gentemot bönderna kom virkesförmedlingen ganska snart få en viktig roll i föreningarna.Det var dock först genom andra världskrigets brännvedshantering som skogsägarföreningarna kunde nå en större del av landets bönder och skogsägare. När skogsägarrörelsen växte och blev allt större kom tanken om att en egen industri i föreningarnas regi skulle förstärka skogsägarnas position på virkesmarknaden ytterligare. Brist på kapital gjorde dock att en industrisatsning drog ut på tiden.

Medarbetares attityder till ett integrerat ledningssystem och attitydernas påverkan på införandet : En fallstudie i Hemtjänsten i Eskilstuna kommun

SammanfattningEn fallstudie gjordes bland medarbetare inom Hemtjänsten i Eskilstuna kommun. Syftet med studien är att erhålla förklaring och förståelse för medarbetares användning och attityder till de processkartor och dokument som ingår i det integrerade ledningssystemet (ILS) samt den förändring som införandet av dem innebär inom Hemtjänsten i Eskilstuna kommun. Syftet är även att erhålla förklaring och förståelse om medarbetarattityders påverkan påinförandet av ILS genom att utgå ifrån teorier om attitydkonstruktioner.     Studien utfördes med en metodkombination av enkäter och intervjuer bland medarbetare inom HEK. Drygt 14% av alla medarbetare inom HEK deltog i studien varav 59st svarade på enkäter och tre intervjuades.

Patienters inställning till att dela rum : En deskriptiv tvärsnittstudie

SAMMANFATTNINGSyftet med studien var att undersöka patienters inställning till att dela rum med patienter av motsatt kön och ålder. Metoden som användes var en deskriptiv tvärsnittsstudie med kvantitativ ansats som utfördes på två akutkirurgiska avdelningar. Det var 33 inneliggande patienter som deltog i studien. En studiespecifik enkät delades ut med tio frågor och två frågor om kön och ålder. Frågorna rörde olika synpunkter om hur det är att dela rum med andra patienter och om hur det är att dela rum med patienter med motsatt kön och ålder.

Bestämning av syntetiska cannabinoider med gaskromatografi-masspektrometri

This thesis has been performed at Clinical Chemistry at Sahlgrenska University Hospital in Gothenburg. The purpose of the project was to investigate new and alternative ways to determinate synthetic cannabinoids by gas chromatography-mass spectrometry. Currently, the possibilities to quantify synthetic cannabinoids are very limited. This can lead to an increased use of synthetic cannabinoids as the risk of detection is low, which may be known by drug users. The synthetic cannabinoids are sold mixed with different herbs and have varying names like Spice Gold, Spice Silver, K2, Smoke and Pot-pourri.The synthetic cannabinoids analyzed were JWH-018 and JWH-073, which are commonly found in seized Spice material.

Upplevelserna av medarbetarskap i äldreomsorgen i Hagfors kommun

The teaching of modern foreign languages within Swedish educational system has been a subject of a number of alarming reports in recent years. Several studies have shown that students lack motivation to learn any language but English. Of particular concern is the young males? underachieving and disinterest in foreign languages. In the meantime, a number of international studies and the statistical data from Swedish national agencies of secondary and higher education (Skolverket and Högskoleverket) have indicated that Russian is one of the languages that are favoured by males. The primary goal of my case study was, therefore, to examine students? motivation to learn Russian and their attitudes towards language, community and Russian-speaking people.

Matrismodellen vs Two-part regressionsmodeller - effekter på Region Skånes resursfördelning

An important task for Region Skåne is to allocate resources to the health care districts. From 1999 to 2002 Region Skåne used needs-based resource allocation as a model for allocating resources. In a needs-based resource allocation individuals with the same socioeconomic and demographic characteristics are assumed to have the same level of need and are therefore allocated the same amount of resources. During the period of needs-based resource allocation a matrix model was used as a method. In the matrix model individuals were divided into cells after each combination of the socioeconomic and demographic variables.

Äldreomsorgspersonalens uppfattningar om ledarskapet i Hagfors kommun

The teaching of modern foreign languages within Swedish educational system has been a subject of a number of alarming reports in recent years. Several studies have shown that students lack motivation to learn any language but English. Of particular concern is the young males? underachieving and disinterest in foreign languages. In the meantime, a number of international studies and the statistical data from Swedish national agencies of secondary and higher education (Skolverket and Högskoleverket) have indicated that Russian is one of the languages that are favoured by males. The primary goal of my case study was, therefore, to examine students? motivation to learn Russian and their attitudes towards language, community and Russian-speaking people.

Sitkagranens potentiella merproduktion jämfört med vanlig gran i Hallands län

Sitka spruce (Picea sitchensis) is not considered to be a native species to Swedish forests. It´s origin is the pacific coast of Northern America, an area that is dominated by a coastal climate which makes it likely to believe that it would be well suited for growing in the south-west of Sweden. This study aims to investigate the gain in production that can be reached by growing sitka spruce instead of Norway spruce (Picea abies) in the county of Halland. A regression model based on data from forest experiments was produced to explain the gain in production. This model was based on elevation and annual precipitation. The model was then used to create a map layer in arcGIS that shows the gain of volume in comparison to Norway spruce in percent. An analysis was carried out to find what share of the forestland in Halland county that fell into four different classes of production gain.

Överreaktion på svenska aktiemarknaden

Title: Overreaction on the Swedish stock market Seminar date:2008-01-30 Course:Nek K01- Bachelor Thesis in Economics (15 ETCS) Authors: Advisor:Oskar Herbe and Ludvig Persson Hossein Asgharian Key Words:Overreaction, Anomalies, Market Efficiency, Contrarian investment strategies Purpose:The purpose of this thesis is to test if the overreaction hypothesis as originally described by De Bondt and Thaler is a good explanation model for the Swedish stock market. Further, our intension is to divide the stock market into three segments by company size, in terms of market capitalization, to control for size effects. Method:We have conducted this study by analyzing Swedish stock data in the period of 1989-2007. Within this time span, using overlapping formation periods, we have constructed two types of portfolios, winner portfolios and looser portfolios. The portfolios represent the 30 per cent best performing respectively worst performing stocks in terms of returns.

Syntes och egenskapskarakterisering av volframoxid framställd med magnetronsputtring

The system tungsten-oxygen has potential of being suitable for decorative coatings since ceramic coatings are often hard and wear resistant, and since modulations in oxygen content or incorporation of small ions could give bright colours. The aim of this report was to investigate the relationship between process parameters and  the properties of the films, with the wear resistance being of special interest.Samples with tungsten to oxygen ratios in the range of 100:0 to 25:75 at% were made using reactive sputter deposition, either with constant gas flow, or gas flow controlled by optical emission of the plasma. The hysteresis of the system, which means that a certain gas flow will cause different pressure and/or target voltage depending on in what way the flow is reached, makes it interesting to control the process where the system makes the steep change from metallic tungsten to ceramic tungsten oxide. This is difficult and thus requires precise control equipment.The samples were analysed using X-ray diffraction, X-ray photoelectron spectroscopy and an empirical wear test suitable for small components like cell phone cover for example, in order to characterize the structure, composition and wear resistance of the coatings. The results could be divided into three groups: (I) tungsten-like, with very low oxygen content; (II) mixed phase and (III) tungsten oxide like, with oxygen content close to 75 at%.

Estimation of reindeer lichen biomass by image analysis

During consultation procedures between forest owners and the Sámi, data on, e.g., reindeer lichen biomass on the current site is needed. Hitherto, the existing methods of measuring lichen cover and biomass has been either objective methods such as the Point Intercept method, which is time consuming, or some sort of subjective visual estimation, which is faster but less accurate. However, both these methods are sensitive to different observers and/or to different inventories. This paper addresses the further development and evaluation of a photographical inventory method that uses colour distribution in images to estimate lichen biomass. During the autumn of 2011 six different locations, with different grazing pressure and lichen cover, in Norrbotten county were inventoried using both the Point Intercept method and the photographical method, complemented with collection of biomass samples.

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