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57 Uppsatser om Crude Oils - Sida 1 av 4

Crude Oils. Vilka budskap kan finnas i Banksys m?lningar?

Syftet med uppsatsen ?r dels att genom analys s?ka de budskap som finns i tre oljem?lningar som ing?r i en serie som Banksy kallat Crude Oils, dels att genom intervjuer unders?ka hur ett antal betraktare uppfattar verken. De tre m?lningarna ?r Banksys versioner (parafraser) av tre k?nda konstverk av Claude Monet, Edward Hopper och Diego Vel?zquez. De teorier och metoder som anv?nds i den analytiska delen ?r framtagna av Roland Barthes respektive Charles Forceville vid studier av annonser. I den empiriska delen till?mpas semistrukturerade intervjuer. Resultatet av analyserna visar att det i m?lningarna finns budskap som kritiserar konsumtion, klassamh?lle och den hysteri som figurerar inom sk?nhetsbranschen.

Angelica archangelica L.

Angelica archangelica (Garden angelica) is the only Medicinal and Aromatic Plant (MAP) with a Nordic origin. The plant can reach up to three meters when cultivated. Angelica archangelica is used as flavouring in additives, honey, beverage base, essential oils, fol-klore medicine and as ornamental for decorative purposes. Commercial cultivation is mainly focused on root production. Production countries are Poland, Netherland, France, Belgium, Switzerland, and former Czechoslovakia with an overall yearly world production of 1000 kg of essential oils.

Energieffektivisering av färskvattensystemet på Skärblacka pappersbruk

The purpose of this master thesis was to study the water system for mechanically cleaned water at Skärblacka mill, in order to find and evaluate possibilities of using energy more efficiently. The thesis also includes an evaluation of the software tool ?Pumpanalys?Skärblacka mill produces pulp and paper. The large amount of water required is cleaned mechanically through filters and called mechanically cleaned water (MR0). The MR0 water is pumped out to the factory by four crude water pumps.

Risks Related to the Maritime Transportation of Oil and Gas (mainly Crude oil, LPG, and LNG) -A Conceptual Study and Empirical Outlook on the Baltic Sea and UK Territorial Waters to Mitigate Risks

Transportation of oil and gas by the Sea characterizes challenges from a safety viewpoint. In this type of transportation, different sizes of special tankers carrying oil and gas. The marine transportation of these scarce natural riches is involved with risks and hazards, which may lead to many losses; for instance, wasting oil and gas, injuries of people, damaging ships and properties, and damaging environment. The main purpose of this thesis is to evaluate the risks, hazards, and accidents during transportation of oil and gas (mainly Crude Oil, liquefied petroleum gas, and Liquefied natural gas) by the Sea with concentrating on transport safety. Hence, a better understanding of these risks and hazards can contribute to decrease of addressed losses.This study is carried out on risks associated with maritime transportation of oil and gas starting with describing the general casual chain (dealing with causes, incidents, accidents and consequences/causalities), continuing with describing risk analysis techniques (including event tree analysis and fault tree analysis) and risk control measures/options, and finally implementing aforesaid investigations on real data from two areas; namely UK territorial waters and the Baltic Sea.In this study, the results of analyzing data from 1991 to 2010 in UK territorial waters revealed that collision and grounding were two most common accidents in terms of crude oil tankers, LPG and LNG carriers in which 44% of all accidents were equally divided between collision and grounding.

ALTERNATIVA ASFALTSBELÄGGNINGAR : Möjligheten att använda icke petroleumbaserade bindemedel

This report investigates the possibility to use non-petroleum based adhesive (biobitumen) in asphalt. The main reasons for replacing bitumen are the fact that oil prices are rising, the threat of peak oil and the fact that the asphalt industry is becoming more environmentally friendly.The main purpose of this report is to investigate whether there are any non-petroleum based adhesives on the market. If so, how can they be used? The questions covered are:? Are there any other alternative asphalt coatings available?? Can bio-oils be used in asphalt?? If the bio-oils can be used, what are the details their properties?? How does a cold climate affect the bio binders?? What is the Swedish asphalt industry?s opinion about bio asphalt?The project was concluded through literature studies, consultations with people in the asphalt industry and through several interviews.The conclusion of this report is that there are some existing non-petroleum based adhesives on the market. They are mainly used for bike paths, sidewalks and parkareas.

Ytbehandling baserad på hampolja

The varieties of paint are today very big, but many of the more popular paints are less than environmental friendly. The uses of fossilized fuel in paints are common because these paints dry fast and are color true. It would be beneficial for the environment if more renewable source were used to produce paint. Linseed oil is an old base for oil paints. It is renewable and easily procured.

Grazemore DSS för att prediktera beteskvalitet för mjölkkor :

The aim of this study was to examine if the predictions of the herbage quality in the software Grazemore Decision Support System (DSS) gives a reliable ground for milk production in the north of Scandinavia. Pasture samples from one research farm (Umeå) and one organic farm (Nordingrå) was analysed on crude protein and organic matter digestibility. The results were statistically compared to the predicted values. Measured and predicted herbage mass was compared and a control if the predictions of milk production improved if the predicted input were replaced by the values from the analysis, was made. The concentration of crude protein was underestimated by the model on both farms and the relationship between actual and predicted values was poor. Mean Prediction Error (MPE) was 24% and 31% respectively.

Jämförelse av plackutbredningen under fyra veckor hos individer som kompletterar sin mekaniska tandrengöring med munsköljning innehållande antingen essenslösning eller CPC samt upplevelser av smak och känsla i munnen - en pilotstudieComparison of plaquef

The aim of this pilotstudy was to compare the plaqueformation during four weeks in individuals using a mouthrinse containing either essential oils (Listerine Cool Mint) or CPC (Colgate Total) as a complement to their ordinary toothbrushing. Another purpose was to evaluate the individual?s experiences regarding taste and sensation in the mouth after rinsing. A semiblind, clinical pilotstudy was conducted in 20 individuals at a university in southern Sweden. According to a screening-plaqueindex the individuals were stratified into two intervention-groups of ten people, one group rinsing with essential oils and one group with CPC twice daily as a complement to their toothbrushing routine.

Effekter av oljor och såpor på parasitsteklarna Encarsia spp. och Aphidius spp.

Syftet med detta arbete var att sammanställa information kring letala och subletala effekter av oljor och såpor på parasitsteklarna Encarsia spp. och Aphidius spp. Resultaten baseras främst på vetenskapliga artiklar, men det gjordes även en mindre intervjuundersökning. De som blev intervjuade var mycket medvetna om att oljor och såpor generellt var skadliga för parasitsteklarna. Resultaten från litteraturundersökningen visade att oljor och såpor kan ha stora letala och subletala effekter på både skadedjur och nyttodjur.

Liquid diesel biofuel production in Sweden : a study of producers using forestry- or agricultural sector feedstock

The transportation sector is the only sector of the Swedish society that is still increasing the emissions of carbon dioxide and other green house gases. Diesel fuel represents one of the fuels that contributes to these emissions and the use of diesel fuels is increasing every year. The main purpose of this study was to make an estimation of the current business situation for producers of liquid diesel biofuels in Sweden such as biodiesel, synthetic diesel and crude tall diesel and examine the forces of competition of the industry today and its future prospects. The study revealed that the rivalry among the existing firms was low mainly due to the geographical spread of the companies. Moreover the success of the biodiesel industry was influenced by a long-term guarantee of the tax exempt for biofuels and by the price level of petroleum diesel.

Mjölkureahalten som mått på vommikrobernas kväveförsörjning och kons miljöbelastning

The aim of this literature study was to analyze how milk urea concentration is working as a measure of the nitrogen supply to rumen microbes and indicator of the environmental load. Questions included in this literature study were how to improve the dairy cattle nitrogen efficiency and what correlations there are between milk urea, nitrogen efficiency and crude protein content in the feed. Effects on the reproduction from high ration protein content are also addressed. Dairy cattle are today fed with large proportions of protein which could lead to high expenditure of feed and environmental pollutions. The nitrogen can be lost to the environment by different pathways; leaching, denitrification or by emission to the air.

Mjölkureahalten som mått på vom-mikrobernas kväveförsörjning och kons miljöbelastning

The aim of this literature study was to analyze how milk urea concentration is working as a measure of the nitrogen supply to rumen microbes and indicator of the environmental load. Questions included in this literature study were how to improve the dairy cattle nitrogen efficiency and what correlations there are between milk urea, nitrogen efficiency and crude protein content in the feed. Effects on the reproduction from high ration protein content are also addressed. Dairy cattle are today fed with large proportions of protein which could lead to high expenditure of feed and environmental pollutions. The nitrogen can be lost to the environment by different pathways; leaching, denitrification or by emission to the air.

Drankgivans och vallfoderkvaliténs effekt på konsumtion och produktion hos mjölkkor :

The coproduct, dried distillers grains + solubles (DDGS) from ethanol production based on wheat contains much rumen degradable protein and fiber with low digestibility. To compliment this quality in an effective way a grass silage low in protein and much digestible fiber is needed. The aim of the study was to investigate the effects of adjusting the crude-protein concentration and fiber quality of the silage when feeding DDGS and of varying the inclusion level of DDGS, when feeding the adjusted grass silage, on intake, milk yield and composition, faecal traits and feed efficiency. Four different total mixed rations were compared. The normal grass-clover silage had a crude protein content of 17,8 % and an NDF content of 46,2 % of dry matter. The adapted grass silage had a crude protein content of 14,6 % and an NDF content of 52,9 % of dry matter. The diets were formulated to have similar nutritional content except for A + 4 which had a higher content of rumen degradable crude protein and a lower concentration of NDF.

Protein i korn : En torkstudie utförd med etablerade analysmetoder på tre kornsorter

A study was performed to evaluate whether established methods of analysis of protein content in barley (Kjeldahl, Dumas, or NIT (short for Near Infrared Transmittance)) gives different results for wet and dried barley. This was carried out because there are concerns regarding the well-worn NIT prediction model giving different results for these conditions and that such an error causes significant price fluctuations on the market. By performing analyses of samples, both before and after drying, of the three different barley varieties Tipple, Prestige, and Quench, with all the techniques, data was obtained that could be analyzed statistically. The study showed that the NIT prediction model gives results for wet barley that is about 0.29 percentage points higher compared to dried barley. This difference was also statistically significant when a t-test was performed.

Fodersammansättningens betydelse för tillväxt hos häst :

The aim of the present study was to investigate the effect on growth of foals on two different diets, either a forage-based diet or a diet containing approx. 40 % concentrate. The report also includes a review of the pertinent literature on the effects of diet on mares? milk and growth of horses. The hypothesis of the study was that a forage based diet will result in a similar growth pattern as a diet including more concentrates if the diets contain the same amount of energy, crude protein, lysine, calcium and phosphorous.

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