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565 Uppsatser om Duty Cycle Corrector - Sida 23 av 38

DIMENSIONERING AV NY FJÄRRVÄRMEPANNA : Vid Craboverket i Fagersta

Life Cycle Assesment, LCA, används för att sammanställa och utvärdera in- och utflöden ur ett system samt potentiell miljöpåverkan under en produkts livscykel. Beräkningarna görs genom att se hela produkten ur ett livscykelperspektiv, dvs. från det att produkten är en råvara till det att den hanteras som avfall. Beroende på måldefinition och systemgränser kan detaljgraden och tidsramen för LCA-studien varieras. LCA används för att identifiera möjligheter att förbättra produkten i olika delar av livscykeln ur miljösynpunkt men också för att jämföra olika system.Syftet med denna rapport är att öka förståelsen för hur förbättringar ur miljösynpunkt kan åstadkommas i produktionskedjan för de tre golvmaterialen parkett, linoleum och vinylgolv samt undersöka om och på vilket sätt LCA metoden kan bidra till detta.Metoden som har använts är att använda livscykelperspektiv samt mjukvaruprogrammet GaBi med databasen Ecoinvent.Miljömärkning Sverige AB ska uppdatera sina golvkriterier och efterfrågar därför information om utsläppen av CO2, NOx, SOx och VOC samt energiåtgången hos de tre golvmaterialen vinyl, linoleum och parkett ur ett livscykelperspektiv.

Transportlogistik : vad påverkar åkeriföretagens konkurrenskraft på en tillväxtmarknad.

All inclusive travel has become a popular way to travel abroad. When tourists pay for everything in advance their need for contact with the local people will be reduced. The consequences of this can be dissatisfaction from the local people as they are left out and do not share the financial benefits created by tourism. During the purchasing cycle of an all inclusive travel, it is possible that the tour operator can influence a sustainable development.The aim of this paper is to compare how a large and a small tour operator in their purchase of all inclusive holidays interacts with local players to create sustainable development, thereby creating a surplus value to the customer. The hypothesis is that the amount of knowledge and application of this knowledge regarding sustainable development differs in the purchase process between large and small tour operators.This paper was carried out as a case study.

Suveränitet eller mänskliga rättigheter? : En idéanalys om USA:s rättfärdigande av Operation Iraqi Freedom

AbstractAs human beings, we are all governed by our innate instinct that to kill another human being, or to just inflict pain on another, is to go against what makes us human. Still, it happens every day, far and near. Some of these killings happens in war-like situations, where atrocities against humanity occur. The international community has since the founding of UN in 1945, a duty to intervene where crimes against the human rights occur. This is a difficult task, because, in order to intervene and help those in need, the situation might postulate states violating states sovereignty.

Forsmark 3 ?Ett Framtida Biobränslekraftverk?

Recent turmoil surrounding nuclear power as an energy source, especially since the accidentat Fukushima, has largely contributed to the debate of whether or not nuclear power should beused as an energy source. This study has examined the economic feasibility of replacingForsmark?s 3rd nuclear reactor with a bio fueled power plant, and find out how this could bedone.The power generation that has to be replaced is equal to 1170 MWe. To replace this, 6 largescaleCFB-boilers, each providing over 200 MWe, were necessary. In addition to this, eachboiler required their respective turbine sets, comprising one high-pressure-, and one lowpressureturbine with intermediate reheating capacities.Based on this, a rankine-cycle was modeled using the software EES, to be able to calculatethe total heat required in the power plant.

Föräldraroll - ett framtidsyrke? : en empirisk studie om hur sex föräldrar ser på föräldrarollen i ljuset av utbildningsidealet

Over the past decade there has been considerable debate in the media concerning the necessity of educating parents in how to be better parents, and strengthening their parental role. This question has also been debated at a national level, resulting in the state commissioning a number of official investigations into the problems that parental education could resolve. A growing body of scientific studies have shown that parental-educational programmes play a strong role in preventing behavioural problems amongst children and teenagers. Many Councils in Sweden already offer these parental courses to their citizens, but discussions are ongoing as to whether these courses should be obligatory for all parents before or near to the moment that they begin to have children. This conclusion has been supported by the official investigations commissioned to look into this issue.

Energieffektivisering av ventilationssystemet i konsthallen Sandgrund Lars Lerin

Uppsala County has ambitious environmental aims for the planned residential area inÖstra Sala backe. In this thesis different energy sources have been evaluated todetermine which system that would be most favorable given currently availableinformation about the project. Planned energy usage has been divided into tap waterheating, space heating and power. Three base case scenarios were made with districtheating, small scale bio fuel and heat pump. Solar power and solar heating were thensimulated and the production from the two could individually be deducted from theenergy need in the base cases, constituting 9 different scenarios.

Kan man identifiera de karaktäristiska dragen hos stop-motion och applicera dem inom 3D-animation?

For any animator either working in stop-motion or 3D-animation the knowledge of the first animation techniques are most important. For it is based on these principles that animation today can create such vibrant characters. With the extreme development 3D-animation has undergone the last twenty years it is easy to lose track of the old ways. But with this thesis a hope to show that it is these old ways that will take animation to its next stage. My aim with this thesis is to find out if it is possible to identify the characteristic features of stop-motion and apply these onto 3D-animation with purpose to create a more expressive style of animation.

Ett ?bra? intranät ? Ett framgångsrikt exempel på användarcentrerad systemdesign

We live in a stressful world and a demanding society where the ability to quickly adapt is one of the most important and most difficult challenges of today. A fairly new phenomenon called intranets has evolved to meet this challenge, however many examples of corporative intranets are stories about failures and systems with poor usability. This study focuses on how the user oriented approach to systems design affected upon a system development process of an Intranet, solely developed within a company, and how it impacts on the intranets popularity among the employees in the company. The study starts not from the literature but from a survey, which is based upon the Delphi method. Which results were used for further in-depth research about the subject, by interviewing three representatives from the company.

Ute och cyklar? : på jakt efter en metod att mäta upplevelse

Well-functioning bicycle paths are relevant issues in today´s society as a way to increase active transport. Active transport means working for a better global climate, urban environment and public health. What we experience on a bicycle affects the choice of a bicycle path and is a subject where there is much left to explore. This essay examines methods in environmental psychology literature that measure the experiences of landscape. The aim is to find and apply methods to measure the experience of two bicycle paths in the Skåne plains.

Miljö- och samhällsekonomisk analys av behandling av biologiskt avfall

Biogas is a renewable fuel that can be extracted from anaerobic digestion of many differentsubstrates, for example biological household waste. An alternative handling of the waste is tomix it with other wastes and incinerate it in a combined heat and power (CHP) plant. Thisstudy uses life cycle assessment to investigate which type of waste handling that is betterfrom an environmental point of view, anaerobic digestion with biogas production orincineration. The results are based on a case study of a biogas production plant owned by thecompany Ragn-Sells in Vänersborg. The alternative is incineration at a CHP plant inGothenburg.

Use of feline TK1 as a biomarker in disease monitoring

Serum thymidine kinase 1 (TK1) activity is used as a tumor marker in disease monitoring in veterinary and human medicine. TK1, an intracellular enzyme, is involved in a salvage pathway of DNA precursor synthesis. TK1 is used in DNA precursor production by catalyzing the transfer of the gamma-phosphate-group from a phosphate-donor to the 5?- hydroxyl-group of thymidine forming thymidine-monophosphate. Nucleoside monophosphosphates are finally converted into thymidine-triphosphates. TK1 activity significantly rises in the G1 and the S phase of the cell cycle.

Arbetsgivares skydd mot arbetstagares utnyttjande av företagshemligheter från tidigare anställning

I ett kunskapsföretag besitter anställda kunskap om företagets hemligheter genom sin anställning. Denna kunskap utgör en väsentlig tillgång i företaget och stärker företagets konkurrensförmåga på marknaden, vilket ökar behovet av ett starkt skydd för företagshemligheter.Problematiken uppstår när anställda lämnar sin anställning och tar med sig den hemliga informationen till sin nya arbetsgivare och utnyttjar den där. När anställda konkurrerar med sin tidigare arbetsgivare får den arbetsrättsliga lojalitetsplikten väsentlig betydelse. Utgångspunkten är att anställda inte är bundna av lojalitetsplikten när anställningen upphör, vilket innebär att anställda är fria att utnyttja kunskap, erfarenhet och skicklighet som förvärvats under anställningen. Detta innebär att anställda inte kan ställas till ansvar efter anställningens upphörande, förutom i vissa fall då det enligt lagen (1990:409) om skydd för företagshemligheter (FHL) föreligger ?synnerliga skäl?.

Flickstaden : Flickbokens diskurs och sadomasochism i Agnes von Krusenstjernas Ninas dagbok, Helenas första kärlek och Fröknarna von Pahlen

The object of this essay is the Swedish author Agnes von Krusenstjerna's novels Ninas dagbok (The diary of Nina) and Helenas första kärlek (Helena's first love) as well as the cycle novel Fröknarna von Pahlen (The misses von Pahlen). The purpose is to explore her use of the discourse of girls' fiction, which I analyse by the depiciton of women's sexual awakening, and her depiction of sadomasochism. The theories of Elaine Showalter, Jacques Derrida, Michel Foucault and Judith Butler are used.Women's sexual awakening is depicted similarly in the novels but more explicitly in Fröknarna von Pahlen. In Ninas dagbok and Helenas första kärlek there is an eroticization of dominance and submission, which is not explicitly sadomasochistic. In Fröknarna von Pahlen, sadomasochism is explicitly described as a "perverted" sexuality and reveals the inequality in the violent sexuality, which is described as "normal".

Optimering av OTEC-system

Ocean Thermal Energy Conversion, OTEC, is a sustainable energy conversion technology that is not yet commercialized. OTEC is a technology that utilizes the temperature difference in oceans between the warm surface water and the cold water at 1 000 m depth to run a Rankine Cycle. This technology can produce electricity and provide synergies like fresh water, air conditioning and aquaculture. A simulation program for three alternative OTEC systems has been created in order to decide which OTEC system is most profitable; closed, open or hybrid system. In this simulation a production cost analysis is performed in order to investigate and decide which one of the three systems that has the lowest production cost. The production cost analysis also analyzes if the profitability is affected by the size of the facility. After these analyzes, the most profitable of the three different OTEC-systems is expanded by an installation of solar collectors in order to see if the thermal efficiency is improved. The result shows that the most profitable system varies with the size of the facility.

Folkbibliotekarier och nya medier: en diskursanalys av folkbibliotekariers inställning till nya medier

The aim of this Masters thesis is to examine librarians opinions about media. Four questions are asked: What kind of different attitudes to new media has librarians had? How is new media discussed in relationship to each other in the debate? What mechanisms and underlying causes control the discourse for new media in public libraries? Does the discourse change over time, in that case, how? The theoretical background is theory about moral- and media panic and popular adult education. The media panic theory includes the idea that the same reaction occurs every time a new media is introduced. The theory about popular adult education is that the public need to be cultivated.

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