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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Den osynliga dialogen : En kvalitativ studie om tyst kunskap i referenssamtal, med skuggning som framträdande metod / The Invisible Dialogue : A Qualitative Study about Tacit Knowledge in Reference Interviews, with Shadowing as a Prominent Method

Wåhlin Massali, Petra January 2022 (has links)
One of the purposes with this master’s thesis is to shed light on tacit knowledge in the reference interview. Theoretical starting points are Robert Taylor’s report about question-negotiation and information-seeking in libraries, tacit knowledge, the concept of horizon in human consciousness and conversation methodology. The empirical material has been collected through the qualitative methods shadowing and interview. The thesis has a section that delves into the method of shadowing, as this turned out to be a useful method to perceive tacit knowledge in reference interviews. The study’s second purpose aims therefore to investigate if shadowing can be developed to perceive and describe tacit knowledge in unspoken work situations, like a reference interview. The empirical analysis shows aspects and components of tacit knowledge in the reference interview. It also shows strategies developed and used by librarians to be able to help users to find the information they express that they need. Shadowing was a useful method in the study, as it can capture nuances and non-verbal details in the interplay between librarian and user.  This is a two years master's thesis in Library and information science.
12

I Staffan Wermes skugga : I maktens korridorer med en hegemonisk kommunstyrelseordförande

Pettersson, Marcus January 2008 (has links)
<p>In this essay I try to find out how the local political climate in the Swedish Municipal Örebro looks like through the eyes of Michel Foucault. I’ve been focusing on the concept power, knowledge and politic. I’ve been applying the discourse theory on the study and the founder of that theory is Chantal Mouffe and Ernesto Laclau, the discoursetheory is a refinement of Foucaults thoughts about discourse. The object of study is the Mayor of Örebro, Staffan Werme and the position connected to that post. I’ve used the method “shadowing”, and I’ve been following the Mayor in every physical room that he appears in for nearly two weeks. The aim is too see which subject-position that the Mayor ascribes to in those different rooms, and also how the concept of power is used.</p>
13

Åtgärder för ökad markanvändning i solcellspark : En tekno-ekonomisk fallstudie om potentialen hos bifacial och solföljare i Solpark Fyrislund

Majid, Safwat January 2021 (has links)
Solar parks are increasingly getting a larger market share of PV installations over the world, and have for the last couple of years managed to establish itself in the Swedish market. The market has for a long time been known for its decline in module prices, which has allowed an emergence of more efficient PV-techniques such as one-axis trackers and bifacial modules. Bifacial modules use the backside of modules for improved utiliziation of incoming light, while one-axis trackers have the ability to track the sun in order to maximise light absorption. These innovations have now caught the interest of companies willing to invest in large-scale PV-farms, where efficient land use is highly regarded. The aim of this thesis was to examine how bifacial modules and one-axis trackers perform in terms of system performance and profitabilty if implemented in 'Solpark Fyrislund', a solar park owned by Vasakronan AB. This was done by modelling and simulating cases in which said techniques were incorporated. The data was later used to estimate profitabilty of each investigated case. Results showed that the highest system performance and profitability was achieved by installing bifacial modules on the site. One-axis trackers are currently too expensive, require higher maintenance and has a higher demand for land, resulting in its profitability not being justified. It was also found that the current configuration could be optimized further for higher profit, by slightly reducing the pitch as well as increasing the tilt of the existing modules. The study should be followed up by further investigating the use of backtracking for one-axis trackers. Said innovations should also be more established in the Swedish market so that CAPEX- and OPEX prices become more accessible.
14

Fuktproblem i tak till följd av solceller : Risker med skuggning av takkonstruktioner / Moisture related damages caused by Photovoltaic modules : Risks with shading of roof structures

Flygring, Pontus, Eliasson, Anton January 2023 (has links)
Energiomställning och globala mål ställer allt högre krav på länder, organisationer och olikabranscher, inte minst byggbranschen. En metod för att minska belastningen på det nationellaelnätet och göra fastigheter mindre beroende av de stora fluktuationerna i energipriserna ärsolcellsanläggningar. Privatpersoner och företag har sedan några år tillbaka satsat på att nyttjasolenergi som en kompletterande energikälla (Energimyndigheten 2019).En pressad marknad och snabba beslut leder till en stor ökning av solcellsanläggningar sommonteras på olika hustak. Vad blir följderna för husen som är försedda med heltäckandetakinstallationer, exempelvis solceller? Vilka potentiella konsekvenser kan dessa installationermedföra på lång sikt? (Svensksolenergi, 2023).Syftet med examensarbetet är att öka medvetenheten kring de risker som kan uppstå urfuktteknisk synvinkel vid installation av heltäckande takinstallationer som solceller. Alla hus ärunika och det finns flertalet typer av takkonstruktioner som alla har olika förutsättningar. Någraav de förutsättningar som ligger till grund för ett friskt hus är ventilation, tryckförhållanden,mängd samt omfattning av köldbryggor, klimat samt geografisk position och de förutsättningarsom finns på platsen. För att ett byggnadsmaterial inte ska överskrida gränserna för kritisktfukttillstånd efter installation av solceller bör konstruktionen kontrolleras innan montering viaen fuktteknisk utredning och/eller genom långa cykliska simuleringar med takets nyaförutsättningar. Det kan även behövas kontinuerliga mätningar efter installation för attsäkerställa en fukttekniskt säker konstruktion. Klimatet har en betydande inverkan påkonstruktionen och kan genomgå kraftiga variationer under ett år. I examensarbetet undersöksden inverkan som solceller har på uttorknings- och uppfuktningsprocesser i takkonstruktioner.I examensarbetet används det dynamiska fukt- och värmeberäkningsprogrammet WUFI Pro 6.7för att genomföra simuleringar av ett par konstruktioner med målet att undersöka hur ensolcellsanläggning påverkar fuktförhållandet i konstruktionen och om det kan uppstå risker medinstallationen.De simuleringar som genomförts visar att varma tak löper risk att utveckla fuktrelateradeproblem som mikrobiell tillväxt. Resultaten visade att parallelltak, som har goda fukttekniskaförutsättningar, är mer lämpade för solceller. En fuktteknisk bedömning bör utföras för varjeindividuellt fall för att säkerställa att konstruktionen klarar av skuggningen som solcellermedför. / Energy transition and global goals impose higher demands on countries, organizations, andvarious industries, including the construction industry. One of the now widely recognizedmethods to reduce the strain on the national power grid and decrease the dependency of theenergy price fluctuations is the installation of solar power systems. In recent years there hasbeen significant investment by private consumers and businesses in the adoption of solar energyas a supplementary power source (Energimyndigheten, 2019).A competitive market and rapid decision-making processes have resulted in a significantincrease in the installation of solar power systems on various rooftops. However, what happensto the houses covered with these types of full-coverage roof installations? And what are thepotential risks? (Svensksolenergi, 2023).The purpose of the degree project is to increase awareness of the moisture-related risks that canarise when installing full coverage roof installations such as PV-modules (Photovoltaicmodules). All houses are unique and there are several types of roof structures that all havedifferent properties. Some of the factors that form the basis of a healthy house are ventilation,pressure conditions, the number and extent of thermal bridges, climate, geographical positionand site-specific conditions. In order for a building material not to exceed the limits for criticalmoisture condition after installation of solar cells, the construction should be checked beforeinstallation via a moisture technical investigation and/or through long cyclic simulations withthe new conditions of the roof. There may also be a need for continuous measurements afterinstallation to ensure a moisture-safe structure. The climate has a significant impact on thestructure and can undergo strong variations during a year. The thesis examines the impact thatsolar cells have on dehydration and humidification processes in roof structures.In the thesis, the dynamic moisture and heat calculation program WUFI Pro 6.7 is used to carryout simulations of a couple of structures with the aim of investigating how a solar cellinstallation affects the moisture conditions in the structure and whether there may be risks withthe installation.The simulations conducted show that warm roofs are at risk of developing moisture-relatedproblems such as microbial growth. The results showed that parallel roofs, which has goodprerequisites for handling moisture, are more suitable for solar cells. A moisture assessmentshould be carried out for each individual case to ensure that the structure can cope with theshading caused by solar cells.
15

I Staffan Wermes skugga : I maktens korridorer med en hegemonisk kommunstyrelseordförande

Pettersson, Marcus January 2008 (has links)
In this essay I try to find out how the local political climate in the Swedish Municipal Örebro looks like through the eyes of Michel Foucault. I’ve been focusing on the concept power, knowledge and politic. I’ve been applying the discourse theory on the study and the founder of that theory is Chantal Mouffe and Ernesto Laclau, the discoursetheory is a refinement of Foucaults thoughts about discourse. The object of study is the Mayor of Örebro, Staffan Werme and the position connected to that post. I’ve used the method “shadowing”, and I’ve been following the Mayor in every physical room that he appears in for nearly two weeks. The aim is too see which subject-position that the Mayor ascribes to in those different rooms, and also how the concept of power is used.

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