Sökresultat:
247 Uppsatser om Cold ironing - Sida 3 av 17
Inneklimatet på ett kontor : Undersökning av inneklimatet vån. G4 stadshuset samt kontor på Ånghammargatan
This report describes an investigation of the indoor climate in two different workspaces. Since we a big part of our lives are staying indoors in artificial environments, and more particularly in our workplaces, we think it would be interesting to do this investigation. The technical solutions for air treatment systems began with simple natural systems without fans and where the thermal rise of the air applied. In modern time is technical air treating systems used to take care of the fresh air supply. This type of units can supply filtered air with the right temperature to the building. Well-functioning ventilation is essential to bring clean fresh air to the room and effectively remove impurities without sound- or draught problems. The indoor climate is relevant for the output capacity.
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.
Att spela in tramp i studio: En studie om studioinspelning av fotsteg i snö
The complex sound of someone walking in snow aren't easy to create in a studio. The best way to get the sound is to go out on a surface with real snow and record the footsteps there, but it is a complex procedure to get the right sound on the snow because snow sounds different in various temperature and various kinds of snow. It is important to find the right kind of snow to get the right sound on the foot steps. In a studio, the foley artist can create the sound of footsteps in snow by walking on different kind of material, like potato flour, coarse salt or corn flakes, the question is how realistic this materials sounds and what temperature on the snow they sound like. The results shows that the real snow (warm and cold snow) sounds most realistic and the potato flour sounds like warm and wet snow, the corn flakes some think sounds like cold snowwhile others think that it doesn't sound like snow at all and the coarse salt sounds like snow when it is around -10°C in the air, they all sounds similar in realism compared to each other.
Interdependens för Sverige: Hur svenska politiker påverkats av ökad internationell interdependens
This is an examination of how interdependence affects the behaviour of politicians and their ability to govern the way they want to. I analyze the memoirs of two Swedish prime ministers, Tage Erlander and Ingvar Carlsson to explore their experiences. I focus on how the increasing interdependence affects the politicians with regards to security, welfare, and financial policies. Sweden had a special position between Soviet and NATO during the cold war. This meant Sweden gave priority to it's neutrality policy during the cold war, compared to increased trade cooperation.
Hälsoproblem hos strutsfåglar i Sverige : litteraturstudie och sammanställning av patologifynd
In the beginning of the 1990?s ratite breeding for meat production was introduced in many European countries, including Sweden. The knowledge of ostrich farming and diseases of ratites is increasing internationally but is still often limited among veterinarians.
This report consists of a literature study and a summary of pathology findings from ratites submitted for necropsy to the National Veterinary Institute (SVA) in Uppsala, during 1995 to 2001. The purpose is to give a general introduction to ostrich and ratite breeding and to give an overview of the most common diseases.
The necropsy data from 1995 to 2001, indicate that many of the diseases are management related rather than caused by infectious agents. Due to cold climate ostrich breeders in Sweden need to supply well designed buildings and good care of the animal.
Betydelsen av hästens hud och päls för reglering av kroppstemperatur i kyla ? vad händer vid klippning och täckning?
The horse is a homeothermic animal and to keep a constant body temperature in winter season is important. Acclimatisation is to provide means for a good thermal insulation consisting of skin, hair, and an outer air layer. The skin covers the horses body and it is composed of three main layers where the top layer of the epidermis consists of dead keratinized cells that are constantly being sheed. The dermis is composed of collagen connective tissue that give the skin its strength. The bottom layer with subcutaneous fat provides a thermal insulation and can be used as an energy reserve in cold weather.
Vätskekopplade värme- och kylåtervinningssystem Utveckling av ett verktyg för energiberäkningar
According to a decision of the European Commission, measures are to be taken to reduce the use of energy in the EU. The goal is to reduce it by 20 % compared to the current use. This shall be done to the year 2020 (European Commission, 2011). One industry that use large amounts of energy is the construction of buildings which account for almost a third of the energy use (Brogren, 2012). The major part of the energy that is used in the construction industry is not used when the buildings are built, but rather during the rest of their subsequent lifetime.
Ett amerikanskt korståg? En jämförelse mellan katolska kyrkans korståg under medeltiden och USA:s politik under kalla kriget.
The Catholic Church launched several crusades during the medieval ages in order to regainthe holy lands and spread the word of God. Their main enemy, the Muslims had grownstronger and needed to be suppressed. This common enemy united Europe under the banner ofthe Catholic Church. In order to fund these crusades the church turned to the wealthyEuropean kings and lords and asked for funding. In return the kings received an indulgenceletter, and also greater respect from their subjects because of their new appreciation from thepope.
Listeria monocytogenes i vakuumförpackad lax :
Listeriosis, which is caused by Listeria monocytogenes, is a rare food borne disease that primarily affects people whose immune system is weakened. These may be elderly people, pregnant women, new-born infants and individuals on immunosuppressive medication. The most common symptoms are meningitis, septikemia and abortion. The mortality is high, on average 20-30 %.
In recent years the number of cases in Sweden has increased.
CFD-simulering av kallras från fönster : Konvektorers och nischdjupets inverkan på lufthastigheter i rummet
During cold winter days it is likely that people in buildings with older windows or high glass facades experience thermal discomfort due to cold air down draughts. Earlier work has been aimed at finding analytical methods to predict the speed of the airflow in a room and in practice heating appliances are often placed beneath the windows to reduce the draught along the floor. In a study from 2012 Mohammad Parchami developed a method for estimating the required heating power to counteract the downdraught with such heating appliances. In this study, Computational Fluid Dynamics (CFD) was used to evaluate the usefulness of Parchami?s method and also to examine the potential of adapting the depth of the inward window sill as a means of decreasing the down draught.
Vinterförvaring av Pelargonium x hortorum :
There are many different recommendations on how to keep pelargoniums over winter, but most of the recommendations suggest ?the higher the temperature, the more light and water the pelargonium needs?.
The purpose with this paper is to try to explain the best and the worst results that are achieved with different storage alternatives of zonal pelargoniums. The results are based on an orientating investigation carried out in January-February, and a questionnaire that members of the Swedish Pelargonium Society answered to.
Both the orientating investigation and the questionnaire showed that zonal pelargoniums are best stored light and cold but frost free. They should be irrigated according to their needs which is when the soil is dry, about every second to third week. Zonal pelargoniums are very resistant to drought and can survive without water for at least 44 days, both when kept under light and cold as well as under light and warm.
En dekonstruktion i ljud : J.O. Mallanders Extended Play
J.O. Mallander?s Extended Play (1968) is a sound recording, a readymade, of the counting of votes in two presidential elections in Finland, during 1962 and 1968. A voice repeats monotonously: ?Kekkonen, Kekkonen, Kekkonen, Kekkonen, Kekkonen?? Although the Finnish president Urho Kekkonen represents, almost personifies, the politics of the post World War II period in Finland, Extended Play does not explicitly address the political. Rather, as this essay argues, it engages in the discourses of power and politics by providing a temporalization of its fixedness, or what Jacques Derrida terms the proper.Extended Play is, in parallel with Derrida?s critique of western metaphysics, a deconstruction in sound that challenges the state ideologies conveyed in the process of the counting of votes, where the presuppositions of the presence of the voice characterizes the ambiguities of power that Kekkonen?s politics of neutrality represent.Mallander?s readymade emerges as a double of the game theory strategies of the Cold War, a mimetic surplus of the administrative control mechanisms of sound recording.
Wool loss in sheep
The idea behind this project came from a feed study executed two years during the lambing season. Both years wool loss was experienced. Low temperature in combination with shearing was believed to cause the wool loss the first year, while protein deficiency was believed to be the cause the second year. In the literature many causes of wool loss are described; mechanical wear, telogen effluvium, bacterial dermatitis, external parasites, wool break, scrapie, genetic causes and nutritional deficiencies are some examples. The aim of this thesis was to study causes for wool loss and how common wool loss is in Swedish sheep herds.
Minskad trädtillväxt under Lilla sitiden? : En dendroklimatologisk jämförelse mellan nutid och 1600-talet invid trädgränsen i norra Skandinavien
During the period called Little Ice Age (1400 ~ 1900) the climate of northern Europe was in an annual year-basis overall colder than it was before and after that period. The numbers of short, cold and rainy summers and long, bitter-cold winters where often repetitive under the approximately 500-years the period lasted. In Scandinavia, the coldest time during this period is estimated to have started around the end of the 16th century and lasted to the beginning of the 18th century. Trees growing at the tree-line are limited by temperature for their annual growth and hence showing differences of growth during changes in the climate, a method called dendroclimatology. The variations of growth can be read in the tree-rings either by analyze the width of the ring or by look into the density of the wood and is used to reconstruct past climates.
Värmeåtervinning ur spillvatten : En utredning av möjligheterna med spillvattenvärmeväxlare
The purpose of this report is to investigate the possibilities with drain water heat recovery (DWHR) in residential buildings. Information and relevant theory has been collected and summarized in this report. Calculations have been done for given scenarios to evaluate profits. DWHR heat exchangers use simple technology and have long life-time. The heat exchanger is connected to outgoing drainage pipe and incoming cold-water supply so countercurrent flow is accomplished.