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302 Uppsatser om Vacuum insulation panel - Sida 9 av 21
Engergieffektivt Bostadsområde : Förstudie Till Aktivhusområde i Halmstad
In the thesis we have shown that it is possible with current technology, to buildneighborhoods that are largely self-sufficient. We have obtained some information aboutongoing work in the field of energy efficient buildings and active house which we have usedto develop a model. The feasibility study for Ranagård we have e.g been forced tofollow laws on groundwater covered, resulting in the construction of basements for singlefamilyhome is not possible. The model that we have built up overtime has been the central part of the work. The model illustrates very well what an activehouse neighborhood means and potential of such an area.
Narkotikans effekter på övrig brottslighet : En analys av svenska paneldata på länsnivå 1995-2004
Under senare hälften av 1990-talet har narkotikamissbruket i Sverige ökat. I denna uppsats undersöks huruvida detta har påverkat den övriga brottsligheten genom en analys av data frånen panel bestående av samtliga svenska län 1995 ? 2004. En Fixed-Effects- modell som kontrollerar för läns- och tidsspecifika effekter har anpassats till datamaterialet. Måttet på narkotikakonsumtion är baserat på den årliga enkätstudie som genomförs bland 18- åriga män som mönstrar till värnpliktstjänst i Sverige.
Hårdgörning av Asp
Hårdgörning av trä syftar till att göra materialet hårdare. Detta går att åstadkomma genom komprimering, det komprimerade materialet tenderar dock att återgå mot sin ursprungsform då materialet utsätts för fukt om ingen låsning sker. Låsningen kan ske mekaniskt i en treskiktskonstruktion som motverkar träets fuktrörelser. Dessa skivor har dock visat sig vara instabila och tidigare försök har uppvisat deformationer i form av kupning. Denna undersökning syftar till att utreda förutsättningarna för att använda komprimerad asp samt att ta fram underlag för framtagning av en kommersiell produkt.Praktiska tester har genomförts för att studera hårdhet, återfjädring och densitet hos det komprimerade virket.
Skuldlättnader som vapen i kampen mot korruption? : Om hur HIPC-initiativet påverkar korruptionsgraden i berörda länder
This paper examines how debt cancellation, given under the HIPC-initiative, has affected corruption over the period 2000-2006. The examination is foremost interesting due to earlier research showing that high corruption leads to unequal distribution of economic resources. This, combined with the objective of the HIPC initiative to reduce poverty, indicates that combating corruption must be successful in order to fulfill the goals of the initiative. A linear regression shows that countries that have benefited from the HIPC-initiative indeed have a lower corruption than other countries. A panel-data analysis shows on the other hand that no effect on corruption due to debt cancellation or reforms undertaken in the program can be confirmed..
Egenskaper och kvalitetsaspekter hos kött från mjölkrasgetter
Most of the goats in the world exist in the developing countries where they are important in the meat industry. In Europe, goats are mostly kept for milk production although the interest for meat is growing. Goats have a thin carcass with only small amounts of intramuscular fat, which gives a lean meat. This thin subcutaneous fat cover can cause cold shortening when chilling the carcass. By using electrical stimulation cold shortening can be prevented.
Formgivning av möbler i SWISSPEARL Carat
This thesis concerns partial discharges in stator windings and the possibility of analyzing data using statistical methods. Partial discharges, or PD, are a physical phenomenon in which discharges occur locally due to large electric fields. PD can occur in or adjacent to the insulation of stator windings and causes breakdown of the insulating materials. PD measurement can provide an idea of how widespread the PD activity is. A technique to measure and analyze PD that has become very popular over the last few decades is phase resolved PD patterns.
Produktivitetens konsekvenser : Tjänstesektorns inverkan på ekonomisk tillväxt
Denna uppsats undersöker om tjänstesektorns storlek har någon effekt på ett lands ekonomiska tillväxt. Data för 92 länder under perioden 1975 till 2003 skattas i en dynamisk panelregression med tre alternativa metoder. Resultaten visar genomgående att effekten är negativ, dock med frånvaro av signifikans för vissa estimat. Detta resultat är i linje med den teoretiska bakgrunden som predicerar att produktivitetstillväxt är svårt att uppnå i tjänsteproduktion. Vidare säger teorin att den ekonomiska tillväxten blir lägre i länder med stor tjänstesektor eftersom långsiktig tillväxt per capita ytterst beror på produktivitetstillväxt.
Ombyggnad av takkonstruktionen på Östermalms Saluhall : Utformning av tilläggsisolering med hänsyn till byggnadens kulturhistoriska värden
Vid ombyggnad av Östermalms Saluhall är ett förslag att tilläggsisolera taket, då ställs det kulturhistoriska värdet av byggnaden mot ombyggnadskraven i BBR. Idag gäller samma krav vid nybyggnad som vid ombyggnad av en byggnad. Det kan därför uppstå tvister vid ombyggnaden av saluhallen, då det är svårt att samtidigt uppfylla nybyggnads- och ombyggnadskrav på de delar som ska ändras.De delar på saluhallen som studerats är två takdetaljer och de projekteras och analyseras byggtekniskt, kulturvärdesmässigt och lagmässigt. Det kulturhistoriska värdet hotas vid ombyggnation, men samtidigt vill Stockholms stad energieffektivisera byggnaden så gott det går. Studien handlar därför om hur man på bästa sätt ska kunna energieffektivisera byggnaden och följa de ombyggnationskrav som finns utan att förvanska byggnaden..
Materialspill i byggnadsproduktionen : Waste of Material in the Construction Industry
This report deals with issues related to construction waste. Building material that has not been built into the project is defined as construction waste. Cost of construction waste amounts to 4-12 % of the total cost of the project. Moreover, cost of construction waste is 1-3 % of the production cost. The aim of this study is to increase knowledge about the main causes of waste within the construction industry.
Simulering av värmebehov för kombinerad kontors- och laboratoriebyggnad utan traditionellt värmesystem
In this Thesis the possibilities of designing a larger building that is very energy efficient in the sense that it would not need a conventional heating system are discussed. Solar radiation transmitted through the windows, internal heat from occupants, lamps and electric appliances inside the building and heat recovered from the ventilation system then have to be sufficient for the heating of the building. This study is of general interest since the property company, Akademiska Hus, plans to use this study as a first step in determining if this technique could be used in the future and thus be worth further investments. A building without a conventional heating system of the size investigated in this project has not yet been built.The energy needed for the heating of the building was simulated using VIP+.The conclusions from the study are that it is possible to build large buildings without any conventional heating system. This could be achieved in many different ways, for example by lowering the inside temperature or by using better windows and heat recovery system with higher efficiency.
Ytterväggar : En jämförelse och livscykelskostnadsanalys
This report discusses the constructionof different types of exterior wallconstructions and analyses wall layers.Standard wall constructions from theSwedish building contractors NCC andSkanska and also from the materialproducer Isover have been chosen for theresearch. Life cycle cost analysis hasbeen made to conclude the mostprofitable wall type, seen from asustainable and economic perspective.The calculations have been made for aperiod of 50 years.The report shows that building with wellinsulated walls is a more profitablesolution both economically and whatconcerns sustainability even though thehigher investment. However, when wallssimilar insulation properties are beingcompared, the study proves that lowerinvestment cost is more profitable.The report introduces requiredconstruction techniques of walls inorder that the reader should understandwall constructions with different layersand properties. The essay shows theimportance of properly constructed wallsto avoid air leakage and moisturedamage.The essay has been implemented byliterature studies, contacts with NCCand Skanska and by energy calculationsmade by hand and using the software VIPEnergy..
Offentlig konst och offentlig makt
The main purpose of the culture is to serve people and represent the people's social will and freedom. Culture does not exist in a vacuum but shaped and framed by political and artistic structures that are not neutral, and this is why the artwork itself cannot be an independent business. The public function of art can be understood as a defense of the ideals of democracy. But today, when political power is often replaced by hegemony, the role of art and functions are changing. How these changes reflect to the identity, reality and truth of society? What political functions are fulfilled when art becomes ?public?? The issue of democracy is linked question of people?s power in a democratic society where power is legitimized in social space.
Optiska egenskapers påverkanav möjligheten att trycka eftermålvärden i ISO 12647-2.
This thesis investigates how the optical properties of paperboard influences printing with targets in ISO 12647-2. The targets for optical properties in ISO 12647-2 are defined for paperboard without optical brightening agents and fluorescent brightening agents wich makes it difficult to reach the targets when printing paperboard containing these agents.Seven different types of paperboard, some with and some without the agents, have been printed and instrumentally andvisually measured to see if there is any deviation from the standard targets and if it shows visually.The result shows that paperboard containing optical brightening agents and fluorescent brightening agents can print with targets in ISO 12647-2 but in many measurments the difference between the types of paperboard were to small to assess. The differences between the types of paperboard in the instrumental measurements did not fully correspond with the waythe panel appraised them visually..
Lyftkraftsberäkning för vingprofiler: Virvelpanelmetoden
The problem presented in this report is that of finding a method to calculate the lift force from a single-element airfoil of arbitrary shape. A number of restrictions are used in order to simplify calculations while retaining reasonable accuracy. The problem is solved for the two-dimensional case only and no finite-wing effects are taken into account. Furthermore, inviscid and incompressible flow is assumed. The method used to solve the problem is the vortex panel method, with vortex singularities distributed over simplified airfoil geometry.
Statistisk analys av partiella urladdningar
This thesis concerns partial discharges in stator windings and the possibility of analyzing data using statistical methods. Partial discharges, or PD, are a physical phenomenon in which discharges occur locally due to large electric fields. PD can occur in or adjacent to the insulation of stator windings and causes breakdown of the insulating materials. PD measurement can provide an idea of how widespread the PD activity is. A technique to measure and analyze PD that has become very popular over the last few decades is phase resolved PD patterns.