Celanese Emulsions har genomfört en riskanalys över en brand i deras tanklager för flytande råvaror. I riskinventeringen sågs ett behov av att fördjupa analysen inom vissa områden för att tydliggöra vilka konsekvenser en pölbrand kan ge. Denna rapport avser att utreda värmekonsekvenserna av en pölbrand i en gemensam cisterninvallning. Området som studeras är en invallning av sju cisterner innehållande olika kemikalier. Sannolikhetsberäkningar för läckage och antändning inom cisternområdet är gjorda utifrån Celanese Emulsions egna beräkningsmodeller.

During the 20th century a significant proportion (about 15 %) of the peat-covered wetlands in Sweden were drained to improve forest productivity. Area wise, most of the forest drainage was done in northern Sweden, but relatively speaking a larger part of the wetlands have been drained in the southern parts of the country. Most often, the forest drainage resulted in increased forest growth, but failures were not unusual, and harmful effects, e.g. on species richness, have been a common cause for draining. Ditch cleaning is necessary for maintaining the ditches in good condition.

The use of Power Line Communication, PLC, as a communication solution for Automated Meter Reading, AMR, is popular by utilities in Sweden and other parts of the world due to demands of accurate and fast meter reading. However the use of the electrical grid as a communication medium is complex and sometimes problematic. This report handles some of the issues and problems that are important to understand when using the grid as a communications medium. Focus is mainly on investigating high frequency distortion in the Kristianstad power grid own by C4energi caused by a frequency converter. Measurements on site are done to investigate signal damping in the grid, different configurations for the frequency converter and signal strength of the PLC-system.

The use of Power Line Communication, PLC, as a communication solution for Automated Meter Reading, AMR, is popular by utilities in Sweden and other parts of the world due to demands of accurate and fast meter reading. However the use of the electrical grid as a communication medium is complex and sometimes problematic. This report handles some of the issues and problems that are important to understand when using the grid as a communications medium. Focus is mainly on investigating high frequency distortion in the Kristianstad power grid own by C4energi caused by a frequency converter. Measurements on site are done to investigate signal damping in the grid, different configurations for the frequency converter and signal strength of the PLC-system.

Starch is a naturally occurring substance in most plants and is used as energy storage. It is a component that mainly consists of amylose and amylopectin. Together they build a complex pattern which gives starch its specific properties. The proportion of amylose and amylopectin varies in different plants but generally starch consists of 25 % amylose and 75 % amylopectin. There have been discoveries of barley varieties containing 100 % amylopectin called ?waxy starches? or ?waxy barley? as well as varieties that have a high content of amylose, around 70 % and these are called ?amylotypes?.

In this study it was investigated if the adoption of a new routine for quality control could improve the precision of the dimension measurement obtained by harvesters. Data was collected from three different harvesters. First, a reference data set was collected before the new procedures had been incorporated, and then when the new methodology was implemented another data set was collected by the harvester operators, allowing the two data set to be compered. The results indicated that following the implementation of the new procedures, the reliability and the precision of the measurements has increased. All harvesters included in the study had improved regarding most of the controlled factors such as standard deviation, systematic difference and hit rate within ± 2 cm for length and ± 4 mm for diameter..

Hydropower is an important source of energy in Sweden and accounts for about 46 % of the total energy production. Sweden has about 1 200 hydropower plants and with the intention of raising the pressure head of the water and to store water, dams are built by the power plants. The storage reservoirs make it possible to adjust the energy production by demand and season. Dams in connection to the reservoirs are subjected to additional loading during periods of high floods or when an icecap in the winter is formed on the reservoirs. In order to maintain the dam safety, the power companies in Sweden are working with guidelines for dam safety from RIDAS.

To produce fine fibre wool as a complement to lamb meat production, Merino and Svea sheep are currently being crossbred in the county of Jämtland. The aim of this study was to evaluate growth and wool quality of the first crossbred lambs. In addition, a literature study about nutritional effects on wool production has been carried out. The literature study showed that fine fibre wool should foremost be achieved through directed breeding. Nutritional requirements of the sheep at different stages of production should determine their feeding.

Sluttningshus. 3 kilformade bostadshus på en sluttning i Gröndal. På Sannadalsplatåns i centrala Gröndal finns en plats med fin utsikt mot Mälaren och Stockholms stad. Härifrån sluttar marken 22 meter till lekparken nedanför. Mot gatan, på Sannadalsplatån, är byggnaderna som lägst för att sedan växa sig som högst där marken är som lägst.

SammanfattningSyfte och frågeställningSyftet med studien är att undersöka vilken betydelse idrottshallens utformning har avseende lärande, lek och fysisk aktivitet i ämnet idrott och hälsa för elever i grundskolan på fem skolor.Hur upplever läraren att idrottshallen fungerar för undervisningen?MetodUndersökningen genomfördes med hjälp av metoden kvalitativ intervju på fem skolor i Stockholm. Skolorna kallas i studien för Nordskolan (F-6), Östskolan (F-3), Sydskolan (F-9), Västskolan (F-3) och Centrumskolan (F-9). En lärare i idrott och hälsa intervjuades på respektive skola. Lärarna kallas för Nora, Olga, Siri, Vera och Cissi.ResultatNord-, Syd- och Centrumskolans idrottshall är stor till golvytan, cirka 24x48 meter, och när varje hall delas av med en vikvägg är vardera halva cirka 24x24 meter.

The Effects of dietary biotin supplementation on hoof health in Swedish dairy cows - a controlled cohort field study. The aim of the present degree project was to investigate the effects of biotin supplementation on hoof health in dairy cows. The experiment was performed as a controlled cohort study in three commercial farms in western Sweden from January 2002 to October 2002. The cows were all housed in cubicle systems with transponder concentrate feeding systems. Within each farm the cows were allocated to either biotin or control treatment. The biotin groups received 20 mg of biotin per cow and day, starting 14 days before expected calving.

Fotboll är en mycket komplex idrott, där spelarna måste ha goda fysiska kvaliteter. En egenskap som blivit allt viktigare de senaste åren är snabbhet. Unga spelare har goda förutsättningar för att träna upp sin snabbhet. Tidigare studier har visat att såväl snabbhet som spänst kan förbättras på sex veckor hos unga fotbollsspelare, genom ett träningsprogram kombinerat av plyometrisk träning och sprint. Syftet med den här studien var att undersöka effekten av sex veckors kombinerad sprint- och plyometrisk träning på olika fysiska förmågor, hos unga, fotbollsspelande män.

This paper investigates narrative and thematic structures in Damien Echols? autobiography Life After Death (2012) and Stephen King?s horror novel ?Salem?s Lot (1975). In Life After Death Echols tells the tale of his eighteen-year incarceration on Death Row in Arkansas/USA. He also uses his childhood memories to overcome hardships in the prison system. ?Salem?s Lot by Stephen King deals with the invasion of vampires in a small town in rural Maine in the North East corner of the United States.  The author of this study discusses if and how Damien Echols was inspired in his writing by the writings of Stephen King.

Denna rapport utreder om kombinationen GPS/PDA är ett lämpligt verktyg för inmätning i fält där kraven på systemet är: Att det ska vara lättanvänt, inte kräver specialutbildning samt positionering inom 10 meter är fullt tillräckligt. I övrigt skulle systemet samarbeta med befintliga system utan att inkräkta i dessa. Målet med projektet var att konstruera en prototyp till ett system som personer med liten datorvana skall kunna använda och det skall ge enklare och billigare datainsamling. Som metod för att lösa denna uppgift byggde vi en fungerande prototyp till ett system bestående av en handenhet med integrerad GPS-mottagare. Handenheten fick ett för uppgiften specialanpassat användargränssnitt.

To guarantee the customers a job satisfactory executed Sydved has been certified by the ISO 14001 standard. One part of the certification is the standards of soil damages. The soil damages were over represented during 1999 and 2000. It was therefore a need to study the problem in order to see what could be done to reduces these damages. A filed study was carried out on 21 subjectively selected stands from the following five districts: Vänersborg, Falköping, Borås, Jönköping and Åseda. As the study is a descriptive study of the soil damages, their character and extension, only stands were tracks were reported were considered.