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1003 Uppsatser om Humidity controlled ventilation - Sida 24 av 67

När rummen råder : En studie om skolan som disciplinerande rum

This study titled When the spaces dominate A study of the school as disciplinary rooms is a study where the emphasis is on quality and where the results are based on observations. The purpose of the research was to analyse rooms and other artefacts in the school as seen from Foucault?s analysis of power. He emphasised that power is expressed in human relationships. To understand how that power is used one can study the techniques adopted and resistance offered.

Glacialgeologi i fjällranden : Undersökning för att spåra värdberget till ett zinkmineraliserat block

The valleys southwest of Storuman has been exploration targets for sulfide mineralizationslike the Laisvall Pb-Zn deposit since the late 1900 when several mineralized boulders wherefound. No previous glaciogeological survey has been made. This report focus on thedirections of local paleoiceflows and glacial transportation in the area of Skikkisjön, thelocation of the westernmost mineralized boulder, found in 2010. The aim of this study hasbeen to create a picture of the glaciogeological evolution of the area in order to determinatepossible hostrock areas. My results suggest that the geomorphology and transportationoccurred during a western icedivide located in the nearby mountainrange.

Papper eller platta?

E-books are not yet fully established on the Swedish book market. A frequently discussed theory is that this might be because of a loss in the reading experience. This thesis has the primary purpose to investigate whether the reading experience from E-books differs from the experience of reading a traditional book in paper. The book used for comparation is a poetry collection named Rakel delat med tio. I have designed the cover and the inlay of this book and as a part of the thesis the working progress is described.

Probiotika som prevention mot urogenitala sjukdomar

About 10 % of the adult women population in Sweden are treated annually for urinary tract infections. The increasing bacterial resistance towards antibiotics is classified by WHO (World Health Organization) and ECDC (European Centre for Disease Prevention and Control) as one of the greatest treats for human health in a global perspective. To find alternatives scientists are studying the possibility to use probiotics to reduce the frequency of recurring urinary tract infections. This literature study examines five randomized double blinded placebo controlled studies where different strains of Lactobacillus have been used as a prophylactic to women suffering from recurrent urinary tract infections and bacterial vaginosis. Overall the studies do not display enough promising results to recommend the use of probiotics as a prophylax or cure..

Automatisk nivåreglering av strålkastare

To be allowed to sell Z-suspended vehicles with dipped beam Xenon or LED lighting, Scania have to develop automatic headlight level control. This master?s thesis aims to be the foundation to that development.The thesis consists of several parts; a market analysis of how competitors to Scania and the general vehicle industry solve this problem; several available principles for detecting the amount of control needed; the construction of a test station for sensors, a control unit and components connected controlled by the control unit; a further theoretical and practical development of one principle ? one rotational sensor connected between the chassis and the back drive axis; a state flow model programmed in Simulink that produces the control signal for the headlight leveling from the sensor input.Lastly the thesis gives some recommendations to the further development and implementation of automatic headlight level control on Scania vehicles..

Utveckling av dynamiska farthinder

The aim of this Master of Science Thesis is to develop guidelines and improvementsuggestions of RiNOVA Traffic AB?s dynamic speed bump. The project started with athorough pre study of the design and its function to find out how passing vehiclesaffects the dynamic speed bump. The majority part of the pre study was to createnecessary mathematical models to explain the arisen forces and strains.The results of the mathematical models gave necessary information about the designregarding weaknesses and flaws. The most critical ones where those which interferedwith the design?s performance and reliability, and therefore needed to be corrected.These problems where more thorough analysed and discussed with experts before thefinal guidelines and improvement suggestions where developed.The parts of the design that had to be redesigned were the extension springs and thebearing that enables the dynamic properties.

Brasil um pais para todos-en studie av MST:s tillvägagångssätt och mobiliseringsstrategi

AbstractThe struggle for land has been an issue ever since Brazil was colonized by the Portuguese Crown. The deep social inequalities that the country faces were raised then. More than 45% of the agricultural land is controlled by only 1% of the landowners. There have been many movements since then, who has fought for agrarian reforms.MST, the largest social movement in Brazil, was born in the 1980s. They managed to mobilize the peasants and the poor people.

Sinnesstämningens påverkan på det verbala flödet

Results from previous studies have showed that people with depression has an impaired verbal fluency. The aim of this study was to investigate whether individuals with depression also generate more words containing negative valence. Controlled Oral Word Association test were administered to a group of 13 mildly depressed individuals and a group of 20 non depressed individuals. The fluency and valence of the words produced was analyzed.The results showed no significant differences between the groups regarding either verbal fluency or negative valence. However, a significant positive relationship was found between a negative mood and negative valence.

Konstruktion av värmespridare med grafit för flygelektronik

This master thesis was carried out for Saab Avitronics, a business unit of Saab ABactive in electronic systems for military aircrafts. Reliability and weight are of crucialimportance in this environment. To improve reliability and lower the weight graphitemay be used for electronics cooling. Graphite is an anisotropic material and hasthereof high thermal conductivity in two directions (in-plane) and a relatively lowconductivity in the third direction (through thickness).The purpose of this thesis was to investigate if graphite is an adequate thermalconductor to use in PCB carriers. The carriers support and cool the PCB by divertingthe heat dissipation from the PCB components to the edge.

-BLB- M/S Calmare Nyckel : Ballast-, Läns- & Brandsystemet på M/S Calmare Nyckel

Rapporten är skriven för att dokumentera den befintliga installationen av ballast-, läns- och brandsystem ombord på fartyget M/S Calmare Nyckel. I enlighet med uppdragets specifika-tioner kommer även förslag på förbättringar att presenteras. Förslagen bygger till största del på fakta från en leverantör av ventilkomponenter och av klassen ställda krav på installationen. Förbättringarna beaktar i huvudsak minskade risker och ökad säkerhet. De största skillnaderna med de nya förslagen är att länsvattensystemet skiljs från de övriga systemen, de viktigaste funktionerna fjärrstyrs med hjälp av pneumatik och systemets komponenter märks enligt branchstandard..

Damages and problems in communal swimming facilities ? an inventory

Bakgrund: De flesta inomhusbadanläggningar är idag 30-60 år gamla och många anläggningar har stora problem med skador på både byggnader och bassänger. Skadorna är ofta så pass allvarliga att det inte längre är lönsamt att renovera utan på många platser planerar man att bygga nya bad. För att undvika framtida problem är det viktigt att dra lärdom av vilka skador och problem som har inträffat samt hur man vid nybyggnation och renovering ska kunna undvika dem. Vid byggande av dagens inomhusbadanläggningar tillämpas främst tidigare branscherfarenheter. Det faktum att så stora brister och omfattande problem förekommer, tyder på att kunskapen är otillräcklig.

Regulatorer med styrsignalsbegränsning

This thesis studies the negative impact that control signal saturation may have on a controlled system. Different methods that are used to compensate for this problem are also studied and evaluated. Both sensitivity to disturbances and the effect the method has on the systems'ability to follow a reference signal will be examined. Stability will be discussed, but no conclusions whether the systems are stabilized or not can be drawn. Control signal saturation will lead to a slower behavior in general.

Murgröna - fasadförstörare eller -beskyddare : en studie i huruvida murgröna på fasader påverkar den relativa fuktigheten vid fasaden

Arbetet berör problematiken om hur fasadvegetation påverkar den relativa fuktigheten intill fasaden. Examensarbetet berör ett ämne som idag är väl debatterat men debatterna bygger i stor utsträckning på antagande och enskilda företeelse. Arbetet visar exempel på att det finns en allmänuppfattning om att murgröna försämrar konditionen på fasaden. I arbetet belyses även den litteratur som finns i ämnet idag. Litteraturen kompletteras även av studier och rapporter som är utförda inom området. Examensarbetet fokuserar runt den huvudsakliga frågeställningen om den relativa fuktigheten skiljer sig vid fasader beklädda med murgröna jämnfört med de fasader som är fria från vegetation.

Konstruktion av snabbkoppling för elektropolering.

Lansen Technology develops and sells alarm systems. The communication between the system devices are wireless. The radio protocol used by the system is developed by Lansen with the purpose to be energy efficient. The alarm systems target groups are individuals, businesses and government agencies. The current system is installed, configured and controlled from a control panel for all audiences.

Mäklarkontorets geografiska placering : Och dess påverkan på kundens val av mäklarbyrå

Technology evolves quickly, with innovative ideas growing everywhere. Still, no technology is anywhere near challenging the mouse and keyboard for navigation of your standard computer. This study focuses on comparing the traditional technologies of mouse and keyboard with the new technology of gestures - in this case Leap Motion - in purpose of finding how the usage differs and what the potential users want from the competing technology. The experiment was executed in a controlled environment, with as few external factors as possible. We found that although the test subjects found Leap Motion fun, the test subjects do not want to surf the web with gestures.

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