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1429 Uppsatser om Natural ventilation - Sida 62 av 96
Energibesparingar i skolans verksamhet: en fallstudie av en skola i Luleå kommun
I dagens samhälle förbrukas mycket energi. I Kyotoprotokollet lovar industriländerna att minska sina utsläpp med drygt fem procent i genomsnitt under åren 2008-2012, jämfört med 1990 års nivå. Målet om Begränsad klimatpåverkan är ett av 16 övergripande nationella miljökvalitetsmål. Kommunerna har ett ansvar att anpassa och genomföra klimatmålet på den lokala nivån. För att kunna klara av energiförsörjningen och nå målen måste landets energikonsumtion sänkas.
Den globala uppvärmningen i skolans läromedel : En jämförande studie av sponsrade och förlagsutgivna läromedel
Today the talk about global warming and climate change are on top of the public agenda. There for schools and schoolbooks also debate the issue of global warming. A newcomer on the school stage is the sponsored school materials that studies show to be a growing phenomenon. In a debate like that of global warming which is filled with uncertainties and so much political and economic interest, I find it interesting to study how these schoolbooks talk about the issue.In my study I have tried to analyze and compare how school materials for primary school discuss the phenomenon of global warming. I have compared two different types of schoolbooks.
Osäkerhet vid fotogrammetrisk kartering med UAS och naturliga stödpunkter
En karta är en färskvara som är i ständigt behov av ajourhållning. Ajourhållning görs normalt med traditionella metoder: fotogrammetriska och/eller geodetiska. Men i och med att utvecklingen går framåt har intresset för en ny metod, UAS (Unmanned Aerial Systems), ökat. UAS är en relativt ny fotogrammetrisk metod där obemannade flygfarkoster används. Detta examensarbete har utvärderat vilken osäkerhet vanligt förekommande detaljer i en karta kan få i framställda "produkter" som genererats med hjälp av UAS-bilder som georefererats med naturliga stödpunkter.
Införande av mjuka golv för mjölkkor : en fallstudie
Soft rubber flooring have gained in popularity over the last years. Rubber flooring al-lows cow to move more freely without slipping and improves claw and leg health. The purpose of this study was to investigate the influence of a stepwise introduktion of soft flooring on cow`s placement in cow houses with robotic milking.
A case study was carried out in a herd in northern Sweden with 41 cows. Observations were made every 15 minutes between 09.00 and 16.00 concering cow placement in cu-bicles, in cubicle alley, in feeding alley and in feeding alley with the head through feed-ing gate. One observation period was carried out per flooring alternativ: 1) all concrete slatted floor, 2) rubber slatted floor in feeding alley and concrete slatted floor in cubicle alley and 3) rubber slatted floors in feeding alley and solid rubber floors in cubicle alley.
The study showed that 6 %-units fewer cows lay in the cubicles when the feeding alley surface was slatted rubber.
Matting of Natural Image Sequences using Bayesian Statistics
The problem of separating a non-rectangular foreground image from a background image is a classical problem in image processing and analysis, known as matting or keying. A common example is a film frame where an actor is extracted from the background to later be placed on a different background. Compositing of these objects against a new background is one of the most common operations in the creation of visual effects. When the original background is of non-constant color the matting becomes an under determined problem, for which a unique solution cannot be found. This thesis describes a framework for computing mattes from images with backgrounds of non-constant color, using Bayesian statistics.
Klimatstyrning ? en branschanalys : Struktur och problemområden för energieffektivisering i fastighetssektorn
Energieffektivisering är en trend som för närvarande genomsyrar hela samhällsdebatten. Politiska reformer för energieffektivisering som genomförs på såväl lokal som global nivå påverkar även hur aktörer inom näringslivet fattar olika beslut. En sektor där påverkan varit speciellt stor är bygg- och fastighetssektorn, som bedöms stå för närmare 40 procent av samhällets energiförbrukning. Påtryckningar från myndigheter, hyresgäster och andra intressenter samt ett stigande energipris uppmanar många fastighetsägare att se över sina fastigheters energiåtgång vid drift och förvaltning. Samtidigt medför den snabba teknikutvecklingen inom byggnadsautomation för värme, ventilation och kyla att nyproducerade fastigheter idag har mycket stor effektiviseringspotential.
Prion infection of ovine cell culture with a natural Swedish scrapie isolate from 1986
Scrapie is an infectious neurologic disease in sheep caused by prions, corresponding to transmissible spongiform encephalopathies (TSEs) in other species. The prion is presumably constituted of PrPSc, the misfolded form of the normal endogenous prion protein, PrPC, which is found in practically all cells in the body. PrPSc can induce a conformational change in PrPC and misfold it as an imprint of itself; this is how prions amplify and spread. The process of conformational change is poorly understood and there might exist intermediate forms between PrPC and PrPSc. Bioassay using mice has traditionally been the golden standard in prion studies but is limited by cost and time.
Vi har i alla fall aldrig varit apor! : En postkolonial studie om kreationism bland unga
This case study examines how a group of upper secondary school students in a multiethnical suburb of Stockholm reason about the theory of evolution. The theoretical background of the thesis is postcolonial and the questions raised were how spread the creationist thoughts are in the group; in what way the backgrounds of the students are relevant to their thoughts; how the students construct the notion of the theory of evolution; how they position themselves and others in relation to the discourse of the theory of evolution; if there are any differences between students at the collage program of natural science and the collage program of social science, and in that case, what differences; and who or what inspires the young in their thoughts about the theory of evolution. To answer these questions both a survey poll and interviews were used. The result of the case study showed that a majority of the students at the investigated school has creationist ideas and that the students profiled on social science have creationist ideas in a wider extent. Another result is that the religious background seems to be relevant to develop creationist thoughts, while the variables gender, home district and educational level did not differ the creationist group from the whole group.
Statuskontroll av Paradisskolans elektriska belastning
In this thesis is studied the electrical load of Paradisskolan with respect to power quality and energy consumption. The school's owner Trollhättans Tomt AB is also interested to know if they can reduce their costs by changing to smaller meter fuses. A recurring ground fault that?s been recorded from powerpanel A1A has been investigated. The school's equipped with an electrical bonding system, harmonic filters for the third harmonic currents, TN-S system from feeding transformer and groundfault monitoring.
Kretsloppstänkande för flerbostadshus i stadsmiljö
Vi människor blir allt fler. Vi förbrukar allt mer. Elförbrukningen skjuter i höjden och soptipparna växer. Vattendragen växer igen allt mer. Miljöresurserna sinar och miljön har allt svårare att återhämta sig.
Turismens inverkan på inflyttning till en ort : En studie av orten Kisa, Kinda kommun
Today, the tourism sector is the fastest growing industry in the world and also includes one of the foremost for instance in the number of work and added tax. The sector entails a lot of positive factors but also negative consequences, such as overexploitation and wear on natural areas. However, even the visitor industry contributes to smaller localities boost by creating new jobs where depopulation occurs. This study focuses on the town Kisa in Kinda Municipality. The purpose of the study is to highlight the importance of tourism for migration to a town and to show the importance of developing sustainable destinations.In the results of this study it emerges that more job opportunities are requested by respondents for increasing Kisas attractiveness.
Skattning av byteskostnader på den svenska marknaden för pensionsförsäkringar
Gender equality and gender equality work is relevant for today's working life, and previously male-dominated occupations may be increasingly under pressure to become more equal. This paper aims to explore and understand how the firefighters at a station are experiencing gender and gender equality in rescue services.Using theories of how sex is done, how a power perspective and a structural approach can show men's and women's different conditions in an organization, and theories that are more specific to gender and change management the firefighters talk about gender and gender equality are analyzed. Essay results were collected through interviews with seven firefighters and then analyzed and interpreted with the help of theories.The analysis shows that there is a perception among the firefighters that men and women are biologically different and that required physical strength legitimizes the exclusion of women. Inequality is seen as something natural and by pursuing an active gender equality women are given unwarranted benefits. When physical strength becomes a legitimate reason for exclusion, the responsibility for gender inequality is put on women and that women don?t have what it takes.There is also a resistance against gender equality analyzed in the paper, and it's stated opposition seems to be directed against the management's way of recruiting women.
Länkar till verklighet: En arkeologisk studie av ämnesstrukturen i Open Directory Project
The thesis examines the view of reality as expressed in the subject structure of the web directory Open Directory Project. This is analyzed in comparison with library classification systems, regarded as products of the modern library movement. The question is raised whether the world view of the directory, in contrast to the modern classification systems, can be seen as an expression of postmodernity. Postmodernity is then understood as a radical critique of the modern belief in neutral science and technology as ways of objectively describing the universe of knowledge. The theoretical and methodological approach adopted is borrowed from a poststructuralist reading of Michel Foucault's archaeology and sociologically coloured classification research.
Utvecklad modell för enklare djurskyddsbedömning : med exempel från mjölkkor i lösdrift
Developed model for easier animal welfare assessment- with examples from dairy cows in loose housingAnimals in captivity are completely dependent on human care. If captive animals are prevented from exhibiting their natural behavior, they may suffer. Animal welfare inspectors, who insure that the animal welfare legislation is followed, use a checklist to assess the situation in the husbandry. This checklist contains only two levels of assessment, which may result in a lack of detail in the assessment of the husbandry. The objective of this report was to develop a more detailed model that provides an overview of the situation in husbandry.
En kvalitativ studie om behandling av missbruk med naturläkemedlet Ibogain
Studiens syfte var att undersöka om naturläkemedlet Ibogain kunde vara en bra behandling för missbruk. För att kunna besvara detta har kvalitativa intervjuer genomförts med fyra personer som genomgått Ibogain-behandling och en psykolog/psykoterapeut på en beroendeklink, Lars Lundell. Utöver dessa intervjuer har en klinik i London besökts som utför Ibogain-behandling. På kliniken gjordes en observationsstudie av behandlingen, samt intervjuer med klinikchefen Dr Brackenridge och en av hans patienter, i uppsatsen kallad Will. Studiens perspektiv utgår från informanterna och våra egna observationer om Ibogain-behandling.