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487 Uppsatser om Relative humidity (RH) - Sida 8 av 33

Styrmekanismers funktion i relationsbyggande: En studie av ett relationsnätverk i verkstadsindustrin

The aim of this study has been to examine the role of control mechanisms when it comes to building relationships in a small business network. In order to reach this goal, we have performed a case study of a Swedish supplier of machines to the engineering industry, which acts as the exclusive representative of a foreign manufacturer on the Swedish market. Main results: A number of control mechanisms, both formal and informal, could be identified in the network. Their specific use, as well as relative importance differ between different actors in the network. In general, the importance of formal control mechanisms decreases as the relationship evolves over time and the importance of informal ones, mainly trust, increases in a corresponding manner..

Ädelmetall i portföljen : En jämförande studie om ädelmetallers diversifieringsegenskaper

A comparative thesis to study precious metals impact on a portfolio, during a long period of time, from the fourth quarter of 1986 to the third quarter of 2012. Five different portfolios are compared; three of the portfolios containing one of the following precious metals, gold, silver and platinum, the fourth portfolio contain all precious metals and shares, and the fifth portfolio containing only shares which is represented of OMXS30. This is done to determine the portfolio that generates the most return in relation to the least risk with the help of historical prices. Sharpe ratio is used to measure the profitability of precious metals by measuring the yield relative to the total risk. The study also measures precious metals correlation with shares..

REE-förande fosfater i Blötbergets apatitjärnmalm

The Blötberget deposit is situated in the north-western part of Bergslagen. The mineralization is an apatite-iron oxide ore of Kiruna type. In Bergslagen the apatite-iron oxide ores occur along a zone from Grängesberg through Blötberget to Idkerberget in the northeast and they represent the largest and the most important iron oxide deposit in Sweden, south of Norrbotten.Different REE hosting phosphate phases has been studied by optical microscopy and analyzed by EDS attached to an electron microscope.The key minerals other than iron oxides are apatite, monazite and xenotime. The relative concentration of the REE-bearing phases differs from the other apatite-iron oxide mineralizations in the area, for example Grängesberg, by a higher concentration of xenotime and lower contents of allanite..

Uppfyller BIM förväntningarna som arbetsmetod för broprojekt?

The purpose of this work is to design and construct a device able to measure the mechanical attrition of oxygen carrier particles. Those particles are used in chemical looping combustion and in the present situation there is a lack of knowledge in how the attrition process work and in which extension. To find already tested solutions trying to answering this problem a literature study wascarried out and the best solution found was the so called Grace-Davison Jet-Cup method. This method is supposed to emulate the attrition caused by a cyclone separator and its advantages are that it is possible to use small test amounts, 5-10 g, and a thirty minutes long test will be enough to acquire useable results. An device was designed based on the Jet-Cup method with some slight modifications.

RATA ELLER TA TA? ? En jämförande studie av Teknisk analys på årsbasis.

Uppsatsen undersöker huruvida en teknisk analys kan generera en årlig överavkastning under åren 1992-2004. De tekniska indikatorerna vilka tillämpas i denna uppsats är; Glidande Medelvärde, Momentum samt Relative Strength Index. Tidigare studier har fokuserat på analyser av längre tidsperioder. Till skillnad från dessa görs i denna uppsats en nedbrytning av undersökningsperioden. Syftet är att slutsatser skall kunna dras om en överavkastning genererad genom teknisk analys kan överstiga den för en Buy&Hold strategi, för kortare tidsperioder..

Att rekonstruera förhistoriska odlingsförutsättningar : första steget i en metodutveckling.

The aim of this work is to take the first step into a development process, with the intention to find a way of making prehistoric soil fertility a variable in archaeological landscape analysis. A pilot study is performed on the Mälar basin area, where four topographical and geological factors are reclassified and then combined, resulting in a map which expresses a relative indication of agriculture potential. The map is then compared to the distribution of Migration Period graves and gold finds. This, however, does not mean that the technique is tied to a certain prehistoric period. Because the work is intrinsically experimental, the technique as a whole is finally discussed and evaluated, and suggestions of improvements and further studies are made..

Status och hotbild för den oceaniska laven broktagel Bryoria bicolor i sydvästsverige :

Horse-hair lichen Bryoria bicolor is a red-listed lichen species in the category Vulnerable. It is an oceanic lichen and it is often found on boulders and cliffs in a semi-open environment with a high humidity in the agricultural landscape. The species can also be found as an epiphyte on trees, mostly in boreal forests in the provinces of Dalarna, Härjedalen and Jämtland. In the agricultural landscape, there has been indications on that B. bicolor show a decline, and this studie aimed at examining the extent and causes of this decline.

Politisk sekterism i Libanon : En fallstudie av Taif-avtalet och den konsociationella demokratins hållbarhet

Aiming to contribute to the discourse on the sustainability of consociational democracy in plural societies, this case study provides an examination of Lebanon?s power sharing model. The study begins with an evaluation of the Taif Agreement. After acknowledging its effect on Lebanon?s consociational system the function and operation of Lijphart?s four consociational elements are analyzed.

Konstruktion av anordning för att undersöka förslitning av syrebärarpartiklar för kemcyklisk förbränning

The purpose of this work is to design and construct a device able to measure the mechanical attrition of oxygen carrier particles. Those particles are used in chemical looping combustion and in the present situation there is a lack of knowledge in how the attrition process work and in which extension. To find already tested solutions trying to answering this problem a literature study wascarried out and the best solution found was the so called Grace-Davison Jet-Cup method. This method is supposed to emulate the attrition caused by a cyclone separator and its advantages are that it is possible to use small test amounts, 5-10 g, and a thirty minutes long test will be enough to acquire useable results. An device was designed based on the Jet-Cup method with some slight modifications.

Gruppmålföljning av markobjekt

This Masters Thesis considers tracking of ground targets. Since ground targets often are difficult to detect with sensors a track is easily lost in ground target tracking. The main question in this thesis is whether information on close targets and observations of them can be used to make the tracking more reliable. An algorithm using Kalman filters and JPDA-association to create a group track for vehicles travelling together has been implemented in Matlab. Using the state of the centre of the group the state of a vehicle in the group can be updated.

Aktiva ägares påverkan på svenska börsbolags lönsamhet

This thesis investigates the effects of active ownership on the return on assets (ROA) of Swedish listed companies during the years 2003 to 2013. Active ownership is operationalized based on the probabilistic voting model that is used to calculate the minimum amount of shares the largest shareholder needs in order to possess control of a contested vote at the shareholder meeting. We study the three largest lists on the Nasdaq OMX Stockholm, having 1454 observations from 207 companies to test our hypothesis. The main result from the study is that there's a significant positive relationship between active ownership and ROA during the investigated period. The active owners' relative strength also proves to have a significant positive relationship to ROA..

Teoretisk och experimentell utvärdering av Lättelement AB:s takinfästning

Lattelement AB in Ornskoldsvik is one of the leading companies in Sweden in composite elements in walls, floors and roofs in particular. The company supplies elements to buildings located with a wide geographical variation, which means that the products are subjected to very different climate with regard to snow, wind and humidity. This places high demands and requires the elements to withstand large variable loads.The elements are made of lightweight beams with flanges of structural timber and beam webs made of OSB. These are bound together by nogging pieces with the same kind of structure. On top of the beams a nailed and glued plywood is added to absorb compressive forces and on the underside of the element a sheet of steel is added for tensile absorption.These elements are then attached to the building framework in different ways depending on the particular element height, loads and the structual supporting material of the frame work.

Tjänstvillighet för Internationell militär insats

Syftet med denna uppsats är att presentera bakomliggande orsaker som kan påverka tjänstvilligheten att genomföra internationella militära insatser. Uppsatsen bygger på en enkätundersökning med fem kategorier människor, som antingen innehar anställning, eller är anhöriga till dem som är anställda av Försvarsmakten. Dessutom har intervjuer med anhöriga genomförts för att få en djupare insikt och förståelse. Resultatet av undersökningen skall svara på vilka faktorer som påverkar tjänstvilligheten, samt därigenom ge förslag på områden där FM och dess uppdragsgivare kan intensifiera arbetet för att göra den internationella miljön mer attraktiv.Utredningen kan ses som ett komplement till Veteransoldatutredningen som genomförts vid Försvarsdepartementet under 2008..

Klimat i djurtransportbil med slaktgrisar sommartid : jämförelse mellan naturlig och mekanisk ventilation

SAMMANFATTNING Uppskattningsvis transporteras 171 miljoner grisar inom EU varje år, varav ca 3,5 miljoner i Sverige. Grisarna kommer, under hela förloppet från förflyttningen från box i stallet till bedövningen i slakteriet, att utsättas för stressande moment. Orsakerna är bland annat omgrupperingar, nya miljöer, vibrationer i bilen samt, speciellt under sommaren, värmestress. Temperaturen i djurtransportbilen är en nyckelfaktor som dessutom kan förstärka effekten av andra stressorer. Lastning i höga temperaturer ökar risken för värmestress. Värmestress innebär att djuren får allt svårare att avge sin värme. Även den relativa luftfuktigheten har betydelse, framförallt vid temperaturer över 30°C. Det är ventilationen i transportbilen som ska transportera bort värme och fukt från bilen.

Göra plats - Om trängbodda barns vardagspraktiker

The essay examines through semi-structured interviews the experiences of overcrowded housing, as they are portrayed through the eyes of children aged 8 ? 14. Overcrowded housing has an effect on children?s school performance, general health and is often linked to less capacity for normal social consumption. Yet there seems to be little done in terms of interrogating children about how they perceive their situation here and now.

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