Sn¨o ¨ar en viktig del av den hydrologiska cykeln eftersom sn¨o binder upp storam¨angder vatten. Det ¨ar d¨arf¨or f¨ordelaktigt att kunna estimera m¨angdensn¨o, lokalt s°av¨al som globalt. Med hj¨alp av programvaran Matlab haren automatiserbar metod utvecklats f¨or att estimera sn¨odjup genom attanalysera oscillationer i SNR-data fr°an GPS-signaler. Huvudresultaten fr°anden utvecklade metoden f¨oljer trenderna hos referensdatan v¨al. F¨or en GPSstationutanf¨or Visby med referensv¨arden tagna 1,3 km bort, ber¨aknadeskorrelationen till n¨armare 90% medan RMS f¨or avvikelserna blev cirka 4 cm..

The degree project at hand investigates how large areas of older forest (80 plus years) suitable for clear cutting there is on the Swedish island of Gotland. Large areas of older forest on Gotland are situated on land with shallow soil depths which are economically uninteresting and often unsuitable for clear cutting forestry. Other forests hold big nature conservation values and should not, or cannot, be used for forestry purposes. The survey is made as a GIS analysis based on the old but carefully made ?Brief forest inventory? (ÖSI) made in the 1980s and early 1990s. A sample from the inventory is combined with studies of orthophotos, satellite photos and other GIS layers that display estimated soil depth and nature conservation values. Partly contrary to common belief, the survey shows that there are still large areas of older forest suitable for clear cutting forestry on the island.

Consumers don´t buy products, they buy brands. To create a succesful brand, you need a clear identity,and it will be strengthened by for instance a graphic profile. This project includes a theoretical partabout corporate identity and graphic profiling, and a description of the work with the graphic profile ofEM-loppet. The aim with this project is to strengthen the identity of EM-loppet, by making a clear andunified profile. The project has been accomplished by studying literature, searching information on theInternet and via personal contacts.

The aim of this project is to examine the needs and problems that exists amongst homeless people and to develop a solution that will help them in their everyday life. Since the homeless are a relatively large vulnerable group i Sweden, their everyday lives could be made easier in many ways.A clear definition of the target group is put together to create a good starting point. What state and help orginazations do to help the homelss and the society?s view of the homeless is also relevant and has been documented. Four personal stories have been put together to desicribe cases of clear problems existing in everyday life.Several interesting problems has been defined from the research and acceptance in the communtiy, desire to be seen and heard and a lack of confidence were the main needs.

Sn¨o ¨ar en viktig del av den hydrologiska cykeln eftersom sn¨o binder upp storam¨angder vatten. Det ¨ar d¨arf¨or f¨ordelaktigt att kunna estimera m¨angdensn¨o, lokalt s°av¨al som globalt. Med hj¨alp av programvaran Matlab haren automatiserbar metod utvecklats f¨or att estimera sn¨odjup genom attanalysera oscillationer i SNR-data fr°an GPS-signaler. Huvudresultaten fr°anden utvecklade metoden f¨oljer trenderna hos referensdatan v¨al. F¨or en GPSstationutanf¨or Visby med referensv¨arden tagna 1,3 km bort, ber¨aknadeskorrelationen till n¨armare 90% medan RMS f¨or avvikelserna blev cirka 4 cm..

Med vår uppsats visar vi hur det med hjälp av Lagranges metod går att tafram en matematisk modell av rotationsfasen i ett släggkast. Släggkastarenoch släggan utgörs i uppsatsen av en sammansatt stelkroppsmodell. Vi tarfram kastarens rörelseekvationer vilka vi får genom Lagranges ekvation. Iuppsatsen har vi härlett Lagranges ekvation genom Newtons andra lag ochHamiltons princip. Resultatet av modellen presenteras i form av en plot iMatlab av slägghuvudets position under olika tider under rörelsen..

The purpose of this study is to analyze the economic effects of different fertilization programs both on stand- and forest-level. The study is applied on an objective sample of inventory data for a forest area in Kalix in northern Sweden. The forest area belongs to the forest company Sveaskog. The study includes different economic models and will be used as a support when the company decides how to invest and how much to invest in fertilization. The study investigates the economy of five different fertilization policies. For each program the rate of interest invested in fertilization and the cost for the extra produced volume has been calculated.

Fish-Bird är ett pågående vetenskapligt/konstnärligt projekt som genomförs i samarbetemellan konstnären Mari Veloni och Australien Center for Field Robotics. I korthet bestårprojekt av två robotar i form av rullstolar som interagerar med varandra och sinomgivning. Robotarna heter Fish respektive Bird och därav projektnamnet Fish-Bird.Detta examensarbete utvärderar Fish-Birds navigeringssystem. Bakgrunden tillutvärderingen är en oklarhet i huruvida navigeringssystem är ofullständigt eller felaktigt.Navigeringssystemet har visat bristande funktionalitet vid upprepade tillfällen. En stordel av problematiken förekommer oftast när hinder befinner sig nära varandra.Studien är gjord genom en detaljerad analys av Fish-Birds navigeringssystem.

The main purposes of this study were to 1) quantify bacterial production in winter during ice conditions, and 2) to compare these production measures with values measured from summer and open water conditions in three humic lakes situated in northern Sweden. Another purpose of this study was to 3) examine whether clear-cutting significantly affected bacterial production or water chemistry in two lakes situated in catchments were a large part of the forest had been removed through logging compared to an undisturbed reference lake. In winter (March/April 2014), the bacterial production ranged from 0, 7 - 2, 2 µgC/L/day and in the summer of 2013 the production values was 4 ? 10 times higher. The main reason for lower bacterial production in winter was ascribed to lower water temperatures as well as to older and more recalcitrant DOC, as there were no significant differences in total dissolved nitrogen or DOC concentration or -quality, that could explain a lower production compared to summer.

The aim of this report was to quantify the accumulation of carbon dioxide (CO2) and methane (CH4) in ice-covered lakes in winter (October-March) during three consecutive years, and to assess whether the concentrations of DIC and CH4, as well as the ratio DIC:CH4 differs between years and between lakes affected by clearcutting and untreated reference lakes. Water- and gas samples were collected from four boreal lakes (two affected by clearcutting and two untreated reference lakes) located in Västerbottens inland in spring. The lakes were found to accumulate on average 91, 55, and 84 mgCm-2d-1 during winters 2012-2013, 2013-2014, and 2014-2015, mostly originating from CO2. The concentrations of DIC (autumn and spring) were higher in the affected clear-cut lakes compared to reference lakes for all years, including the reference year (2012-2013) before clear-cutting. No such difference was found for CH4 or the ratio DIC:CH4.

The aim of this project is to examine the needs and problems that exists amongst homeless people and to develop a solution that will help them in their everyday life. Since the homeless are a relatively large vulnerable group i Sweden, their everyday lives could be made easier in many ways.A clear definition of the target group is put together to create a good starting point. What state and help orginazations do to help the homelss and the society?s view of the homeless is also relevant and has been documented. Four personal stories have been put together to desicribe cases of clear problems existing in everyday life.Several interesting problems has been defined from the research and acceptance in the communtiy, desire to be seen and heard and a lack of confidence were the main needs.

The thesis mission is to investigate whether the swiveling laser that Vectura (former Vägverket Konsult) has in use to measure the road areas and straddle measuring can be used to detect differences in the reflective road markings function. This is to increase use of the swiveling laser and get rid of the manual measurements performed today.Currently, the measurement of road markings reflective function is performed with both mobile and handheld measuring instruments. The purpose of this thesis is to develop better methods for determination of road markings? reflective function, in order to facilitate the description and suggestions for improvements of the maintenance of road markings reflective function.The questions that the thesis has been to start with are:Can the swiveling laser detect differences in longitudinal and transverse road markings reflective function?The accuracy of measurement has been sweeping the laser over the reference instrument (LTL-2000)Is it necessary with a conversion factor for swiveling laser data against the reference instrument data?To answer the question 2 and 3, there has been a field work in Värnamo where a road stretch with longitudinal road markings and zebra crossing (transverse road markings) has been investigated with a swiveling laser and LTL-2000.The formulas and calculations contained in the thesis are drawn from scientific reports that are produced by VTI in Linköping. The same formula that was used to calculate the optical measurement data was also used for the swiveling laser data.

Detta examensarbete har genomförts på uppdrag av RFN i Vidsel, där bl.a. långdistansmissiler testflygs. Syftet är att utveckla en metod, en siktanalys, för att kunna beräkna en flyghöjd som garanterar sikt från en eller flera observationsplatser. Som programspråk användes det matematiska beräkningsprogrammet Matlab, som är ett flexibelt program innehållande fördefinierade metoder för en siktanalys. Arbetet har genomförts på en vanlig PC.

The purpose of this paper is to examine how the term "pupils in need of special support" is defined in Swedish central policy documents. The essay is based on a social constructive contribute knowledge about the term?s definition and interpretation with support in a range of scientific texts. The method for achieving the purpose based on qualitative textual analysis of Skollagen 2010:800, Läroplan för grundskolan, förskoleklassen och fritidshemmet- Lgr 11, Salamancadeklarationen and analysis of the result of three scientific studies.Neither Skollagen 2010:800 nor Lgr 11 gives a clear definition of the term ?pupils in need of special support?.

Det bör vara möjligt att skapa verktyg för att beskriva scenarion och med hjälp av tillgänglig mjukvara för visualisering kunna spela upp både verkliga och simulerad bilddata. Detta examensarbete beskriver hur några sådana verktyg tagits fram. Till förfogande fanns en stor mängd bilddata, insamlad på ett militärt övningsområde som dessutom finns representerad som en syntetisk omvärldsmodell. Insamlingen gjordes med en UAV (Unmanned Aerial Vehicle)- prototyp, som var utrustad med videokamera, IR-kamera och tröghetsnavigeringssystem. För att simulerad bilddata skulle få ett verklighetstroget intryck placerades markfordon ut i den syntetiska modellen på exakt samma position som under fältförsöken.