244 uppsatser · sida 5 av 17
… görs i denna studie en kartläggning av kostvanorna hos medarbetarna på Stena Oil. Syftet med studien är att kartlägga kostvanorna hos medarbetarna på Stena Oil och på så sätt skapa ett underlag för en intervention med syfte att förbättra deras kostvanor. Underlaget kan också …
En undersökning av alternativ till diesel som drivmedel för lastbilar
… energy production as well as for transporting humans and goods. Without the oil, many of the things we take for granted would not be possible. During the last century, the use of oil has increased steadily and will probably keep increasing as the world population and the …
En studie om uppvärmning med pellets och flis
… area. Grinda Wärdshus, a guest house located in the island, currently uses an oil-fired boiler as a heating system. The aim of this thesis is to investigate whether wood chips or pellets is, from a sustainability standpoint, a suitable heating method for the guest house. A …
Hos hydrodynamiska oljeglidlager med labyrinttätning
ABB Motors and Generators manufacture large AC machines with oil lubricated plainbearings. The machines have occasional problems with oil leakage from the bearings. aproblem that ABB wants to be solved.In this thesis the cause of this leakage were investigated, with focus on the …
… prices and support from the EU. Farmers, who plow in autumn on heavy clay soil, often do some kind of tillage in autumn to get better soil structure before spring seeding. This is especially important when growing small seed crop, e.g. sugar beet and oil plants. There is a lot …
ett praktikfall
… in the crop rotation. I have chosen to investigate two crops, production of oil seed rape to refine it to rape oil and hempplants for heating. My conclusion is that Swedish agriculture has a future, but it reqvest high demands on business managers and employees. You must always …
fysikaliskt verkande insektsmedel : mortalitet och appliceringsteknik
… Coco soap + chilli and L´Ecomix. The products are mainly based on vegetable oil, soap and plant extract and cause primarily a physical contact effect which affirm that it is fundamental to obtain a high coverage of the underside of the leaves, where A. socialis is present …
en jämförelse av ett silotorksystem med omrörare och en konventionell anläggning
… (Gss). On the farms quality grain is grown for marketing purposes along with oil-seed. In order to optimize the economic result of the farm when an investment is conducted in any of the drying and storage systems integer programming techniques have been used. The results from …
En studie av investeringar i svenska kvalitetsmålningar under perioden 1985-2006
This paper analyses how Swedish fine-art oil paintings sold at auctions has performed as a monetary investment during the period autumn 1985 until spring 2006. An average price technique as well as a hedonic regression technique, applied to a sample of 19 213 auction sales, is …
… consisted of the haylage from the tilled land, oats, sugar beet pulp, soy bean oil meal, lucerne pellets and brewers yeast. The second period, which lasted for 16 days, the horses were fed the meadowland haylage and a small amount of sugar beet pulp. Faeces were collected once …
-bedömning av dagvattenkvalitet
… in the stormwater based on pH, conductivity, phosphorous, nitrogen, bacterias, oil and one sample that meassured the value of several methals. Since the population has increased for decades, the area of hard surfaces and asphalts areas also has increased. This can increase the …
… impact and economy. District heating and diesel generator with rape seed oil are systems with negative global warming potential, mainly due to the simultaneous production of power together with heat. Compression cooling has the highest GWP and the remaining systems shows a small …
… at the required loads and environment. The component can’t be lubricated with oil (oil can have effect the function of other components of the system negative) why lot of the attention is put on finding a joint that works well without lubrication or with water in the contact …
Traditionally, rolling mills use emulsions based on a mixture of oil and water for lubrication. Since two years ago SAPA has been using (instead of oil) a synthetic lubricant so called conditional emulsion for hot-rolling of aluminum. This lubricant is water based and homogenous …
… what is it that makes farmers invest in alternative energies such as a straw boiler? To answer these question three farmers who had all chosen to invest in a straw boiler were interviewed. With an empirical basis of personal interviews the relevance of this paper reinforces. The …
