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1117 Uppsatser om Pressure reducing valves - Sida 34 av 75

Skadeanalys och omkonstruktion av HMS Belos A-ram

In order to rescue a distressed submarine crew, the Swedish Navy is able to use a deep submergence rescue vehicle, DSRV. This mini submarine ascends, docks to the downed submarine and picks up the whole crew. The submarine rescue ship HMS Belos has a special crane located in the aft of the ship to lift the surfaced DSRV aboard, which then docks on to the on board pressure chambers located below deck. During inspections the aforementioned crane has shown to have problems with cracks in the structure, most of them located in the bolted joint between the top part of the crane and the two leg parts. A simulation of the forces acting on the structure in heavy sea condition was conducted; these values were then used as input values in a Finite Element Method, FEM, analysis of the joint.

?Men snöbollarna är ju mer än tio!? : en vetenskaplig essä om matematik, lek och lärande i förskolan

My aim with the experience-based essay is that I want to explore the implications of mathematics on children's development. I also want to examine my approach in relation to the various mathematical tasks. Why do we think that mathematics is important for pre-school children? What does the research say about how the teacher is thinking about mathematics? Can the teacher combine playing and learning and create meaningful moments and activities related to mathematics? I also want to explore our policies and the objectives that the teacher should relate to. What is required of me as a teacher in order to meet those goals?My essay is about mine and my boss?s view of the mathematical tasks that I usually perform in the preschool.

Bara för att? : En kvalitativ studie om hur studenter tolkar bilder i en publik kampanj om alkohol

En kvalitativ studie har genomförts på tre kampanjbilder från IQ-initiativets satsning ?IQ student?. Kampanjbilderna har ett motsvarande tema baserat på att det alltid finns en anledning till att dricka alkohol. Studien har med hjälp av fokusgruppsintervjuer och en intervju med IQ tagit reda på hur IQ vill att studenterna ska tolka bilderna och hur studenterna faktiskt tolkar dem. Studien utgick från teorier som receptionsstudie, semiotik och socialpsykologi.

Vad styr förekomsten av sälg och asp? : en studie av olika beståndstyper inom Hamra kronopark, Dalarna

Aspen (Populus tremula L.) and goat willow (Salix caprea L.) are two important tree species in the aspect of nature conservation. Due to the elimination of forest fires, a former negative attitude towards deciduous trees in forestry and a strong herbivore pressure, these tree species have been negatively affected during the last fifty years. The aim of this study was to investigate whether the occurrence of aspen and goat willow could be related to either human impact or to site properties, such as ground moisture and vegetation type. A side study included an inventory of a number of cyanobacterial tree lichens on aspen and goat willow in order to try to relate the occurrence of these lichens species to stand history and stand properties. The study was performed in Hamra State Forest in northern Dalarna. Nature reserves were compared with stands in managed areas.

Åtgärder för att skapa säkrare hämtning och lämning vid skola : Undersökning vid Ludvigsbergsskolan i Valbo

Researchers, planners, and government agencies agree that road safety for children must be a priority and in particular that children should have a safe and secure way to travel to and from school regardless of age or the distance travelled. In Sweden, child traffic safety is a key part of the country?s Nollvision, a long-term traffic policy goal of ?no deaths or serious injuries?. Unfortunately, many countries have recorded increases in child traffic accidents as the percentage of parents who drive their children to school and thus congestion around schools has increased. Common strategies include traffic safety education for children, the redesign and improvement of traffic infrastructure, bicycle training, and carpooling.This thesis assesses the traffic problem around Ludvigsberg School in the district Valbo in Gävle, Sweden.

Safe retrieval of nutrients to improve food security

Safe retrieval of nutrients from human excreta to fertilize crops in order to gain adequate yields will increase food security and sustainability in agriculture areas with nutrient-poor fields. Safe and nutritious food will meet the dietary needs of the individual which promotes public health and the ability of an active life. Human excreta should be considered as a resource instead of being assumed as waste. Human faeces and urine is excellent fertilizers which may close the nutrient loop if utilized properly. However, sanitation of the excreta is required to prevent disease transmission by reducing the content of gastrointestinal pathogens such as bacteria, viruses and parasites. The objective of this study was to in small scale evaluate the sanitation in a combined liquid compost and urea treatment by monitor the inactivation of bacteria and viruses at the combination three start temperatures, 45, 40 and 35 °C, and three additions of urea, 0.5, 0.75 and 1 % and reference, 0 % urea addition.

Den svenska regeringens förvirrade klimatarbete

The aim of this study is to clarify the Swedish government?s purpose of participating in theEuropean Union Emission Trading Scheme. Taking as its departure point state-centricinternational political economy this study presents three plausible hypotheses on what thepurpose might be. Either it is to promote consumers interests, or to promote the Swedishnational climate goal ?Reduced impact on climate?, or to promote the profit of Swedishcompanies.

Har det svenska statsskicket Europeiserats? : Konstitutionella förändringar sedan EU-inträdet

Since Sweden became a member of the European Union (EU) several constitutional reforms has been taking place. During this time, Sweden has also changed its view on democracy,from a collective to an individual perspective of democracy in the politics. A reasonable hypothesis and the purpose of this essay is to investigate if the Swedish government has beendeveloped towards an Europeanization.The Swedish state audit changed in a pioneering way after the EU- entry, with the formation of Riksrevisionen. Another constitutional change is that the Swedish EU- membership is being instituted in the Swedish constitution. The role of Swedish courts has also changed since the EU- entry.

Om europeiska fattigdomsteorier och deras tillämpbarhet, relaterade till policydokument för EU:s fattigdomsår 2010.

This master?s paper first presents some of the principal theories and concepts developed by the poverty researchers Rowntree, Titmuss, Townsend, Sen and Lister. These theoretical frameworks are then related to two documents from the EU and Sweden concerning combating poverty and social exclusion, bearing on the establishment of the ?Year 2010 against Poverty?. Finally, I discuss the value in practice of these theories and policy documents, as regards reducing poverty in Europe.It has become clear in this investigation that the theories and concepts from earlier research are still relevant to the formulation of contemporary policy programmes, and that earlier research helps us to avoid old traps in fighting poverty.

Glokala kampanjer mot fattigdom : Kommunikationsstrategier bakom statliga Världens Chans och ideella Utrota Fattigdomen Nu

Purpose/Aim: The purpose is to describe, analyze and compare the two communication campaigns Världens Chans and Utrota Fattigdomen Nu, and discuss how and to what extent communication campaigns in Sweden can be used to reduce global poverty. The theoretical framework is mainly based on communications strategies and other relevant aspects of the planning process of campaigns.Material/Method: Within the qualitative case study as an overall method, the main material to the two cases is obtained through five qualitative interviews with the premier representatives of the campaigns.Main results: Världens Chans can be seen as an information campaign by the government which purpose is to contribute to the fulfilment of the millennium goals by drawing the attention of the public to their existence. Utrota Fattigdomen Nu, on the other hand, is an influence campaign by the civil society which purpose is to exterminate poverty by putting a pressure on power holders and to change the attitudes and the behaviours among the public. Both campaigns are based on a network with lots of different actors, functioning as opinion makers. Furthermore, communication campaigns are important tools in the fight against poverty..

Elektronisk Handel : Framtagning av två implementeringsmodeller

This report is about helping Q-Med AB in Uppsala to start its implementation of uncertainty of measurements analyses in their manufacturing department. Prior to this, the company relied solely on personal experience or did not take this uncertainty into consideration at all during different kind of measurements, which means that some of the processes that the company previously believed were within specified acceptance limits, will actually fail when considering these sources of uncertainties.Q-Med AB needed some sort of instruction to help the company, in a systematic way, to investigate different types of disorders that are affecting all kinds of measurements. This instruction includes a short summary about measurements and uncertainty of measurements in general and a detailed procedure about how these uncertainties are going to be handled in their daily work.The goal was to be able to use this instruction to systematically locate, eliminate (when possible) and analyze all kinds of disorders when measuring. Q-Med is using a lot of different types of instruments when measuring different types of quantities, including temperature, mass, pressure and density. This instruction will hereafter be used for every instrument, regardless of quantity and type of instrument.The instruction is tested through 4 different kinds of measurements, for mass, temperature and humidity.

Potential för energiklippdrivare i Skåne : markägarintresse, råvarutillgång & ekonomi

As the Swedish governments long term goals include a reduction of fossil fuel dependency, increasing pressure is placed upon energy companies to create and develop new solutions for renewable energy. The following case study was done in collaboration with the company Sydved Energileveranser AB and one of their contractors, Enarssons Skogsentreprenad AB. The objective of the study is to examine the bioenergy situation in region of Skåne and evaluate the potential solutions in the region for a forest-fuel assortment, based on a bioenergy-cutting-system. As a part of this study I have compared ordinary manual cuttings done with a chain saw and cuttings made using the new ?bio- energy cutting system?. The cuttings made under both systems were tested in areas near agricultural fields or pasture land in order to maintain an open landscape.

Kackel, kvitter eller pip - uttryckssätten i twitterskogen är många. En kvantitativ studie om olika strategiers potential på Twitter.

Internet and social networks have become important features in today?s society. We spend numerous hours on browsing and communicating through these platforms. This development has also led to a shift of power from businesses to consumers. Today?s consumers have more control of if, when and what messages they are exposed to.

Högfrekventa tryckvariationer under de senaste århundradena

Long time-series of pressure measurements often have high quality because the early instrumentsare more or less the same as the modern ones. A time-series from Lund consisting of three dailymeasurements from 1780-1997 has been homogenised and is therefore suitable for analysingpossible influences of the enhanced greenhouse effect. According to a two-layer model of theatmosphere one finds a shift in the frequency of baroclinic instability due to an increasedtemperature gradient caused by the increasing CO2. Baroclinic instability over the Atlantic Oceanis the main cause for frontal zone production, causing cyclonic activity over the southern part ofScandinavia. Changes to the baroclinic instability would therefore be traceable in the time seriesfrom Lund.

Hur tränare upplever att tennisspelande barn påverkas av sina föräldrars beteenden : En intervjustudie

Denna studie syftar till att undersöka hur föräldrars beteenden påverkar sina aktivt tennisspelande barn i samtliga tennissammanhang ur tennistränarens perspektiv i Sverige. Tidigare studier, som är gjorda i andra länder, visar att de flesta tennistränares upplevelser med föräldrar inom tennis är positiva. De problematiska beteenden hos föräldrar som tennistränare upplevt är oftast under tävlingssammanhang då deras barn spelar match. Det finns en kunskapslucka i Sverige kring detta ämne då inga studier är gjorda kring tennisföräldrars beteenden och dess påverkan på sina barn. Fem semistrukturerade intervjuer utfördes på fem svenska tennistränare från olika delar av landet.

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