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1226 Uppsatser om Heat loss - Sida 37 av 82
Konjunkturens påverkan på sponsringsintäkterna : Sponsring
The aim of this study has been to create an understanding for the situation of an often forgotten group in foster care, the carers? own children. Our main focus has been the experience this group has of foster care, their experience of participation in caring for the foster children and their possible need of support and help. Our chosen method has been qualitative interviews with six adult children of foster carers, two men and four women. The theory used in this study has been Sense of Coherence.Our interviewees gave mainly a positive description of being part of a foster family even though they could give examples of difficult situation and of loss.
GIS-program för ruttplanering. En studie av nyttjandet av GIS-program för ruttplanering inom tekniska förvaltningar bland kommunder i västra Sverige
This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.
Utveckling av styrning till solföljande MaReCo-hybrid i Hammarby Sjöstad
Turning solar collectors, heliostats, is certainly not a new idea but has been explored for at least two decades. Projects on this subject have resulted in more or less realistic constructions, in a commercial point of view. Far too often the technical goals have had higher priority than the economical, which has resulted in a few constructions having the ability to compete with conventional, fix solar collectors. The economical issues have been given high priority in this project, without decreasing the demands on reliability. The system has been given the following mechanical and electronical properties: One-axis movement, fix heat carrying fluid system, microcomputer controlled movement and automatic protection from overheating.
Gränsöverskridande förlustutjämning inom EU : En studie med fokus på målet Marks & Spencer
Ekonomiska nackdelar som uppstår till följd av att en verksamhet bedrivs genom flera självständiga dotterbolag istället för under ett bolag med flera driftställen avhjälps normalt med lagregler om koncernbidrag. Dessa regler är emellertid endast tillämplig på nationella koncerner, dvs. koncerner där samtliga bolag har säte i ett och samma land. Problem uppstår emellertid när de olika dotterbolagen är belägna i olika länder. Denna uppsats behandlar problematiken kring gränsöverskridande förlustutjämningar inom EU.
Stöldskydd
To save energy it?s popular to build houses with low energy loss. In these houses the walls are keeping a lower temperature in the external side which leads to a higher relative humidity. In addition more material, such as wood studs, are used which means that there is more moisture to dry. More moisture in combination with higher relative humidity may pose a higher risk of microbial growth.
Teknik för biogasanvändning
This thesis is made by Carl Persson and Alejandro Saavedra for Gryaab. Gryaab is Gothenburg?s water processing plant and produces about 60 GWh biogas annually with a flow around 1150 Nm3/h. Gryaab wants to research their possibilities to become independent with electrical energy and the possibilities to enrich, upgrade biogas. The use of methane rich gases like biogas and natural gas is today low in Sweden compared to major parts of the world.
Kroppsuppfattning hos kvinnor med bröstcancer
Body image in women with breastcancerBreast cancer is the second most common form of cancer in Sweden today. To get a breast cancer diagnose can be a traumatic experience for many women. It´s difficult to forsee how these women are going to control their situation. When a breast has to be removed because of cancer, the women has to adjust to changes in both physical and phychological aspects. The aim of this study was to elucidate body image in women with breast cancer after a mastectomy.
Matsvinn på förskolor i Uppsala kommun
Under hösten 2008 har det uppmärksammats i massmedia att vi slänger mycket ätbar mat. Flera av varandra oberoende studier visar att mycket mat slängs och detta görs för det mesta i onödan(Konsumentföreningen, Stockholm, 2009;Blekinge läns tidning, 2008;Engström och Kanyama, 2004). Matsvinn är en stor källa till miljöbelastning från livsmedelssektorn, ett etiskt och inte minst ett ekonomiskt problem (Sonesson och Angervall, 2008).
Syftet med den här studien är att ta reda på vilken attityd förskolechefer, pedagoger/personal och föräldrar på förskolor i Uppsala kommun har till matsvinn. Vilken strategi behövs för att minska på matsvinnet? Kan man med enkla medel åtgärda detta eller krävs omfattande förändringar? Vilka lagar och regler gäller?.
Ligger grunden till problem inom projekt i initieringsfasen?
Project management has been a very popular way of conducting information system development in the past years. Among all major information system developing companies today, almost everyone work in some form of project management. Our objective with this study has been to find out if there are any problems that begin in the early part of the project. Problems that, if they aren?t solved directly, can become bigger problems later on in the project.
Empirisk undersökning av aktieindexobligationer : Till vilken grad tar innehavaren del av underliggande index avkastning?
The purpose of this essay is to evaluate stock index bonds return to risk ratio in order to investigate to which degree an investor in a stock index bond take part of the underlying index return and what the investor must pay for the security of not losing his funds. In order to carry out this evaluation an average return per year and the Sharpe ratio will be calculated and a mean- standard deviation analysis will be made. All investigated stock index bonds are based on a Swedish underlying asset.The results show that the stock index bonds haven?t generated a higher risk adjusted return than its underlying asset. The stock index bonds took part of 57 % of the underlying assets return, and the loss of 10 percentage points per year for the stock index bonds compared to its underlying asset can be seen as the cost for the guarantee a stock index bond gives..
Radioräckviddsberäkningar för flygande plattformar
There exist several known methods for calculation of radio coverage for ground-based systems. As far as we know there are no equivalent methods for the case of flying platforms when the altitudes and speeds are significantly different to those of ground-based systems. This thesis describes the theoretical concepts behind calculations of radio coverage for flying platforms. An investigation is made to sort out what is important and possible to employ in a model for simulations. A method is described and implemented in a program for evaluation of flying radio systems.
Hur lokal bioenergi kan bidra till att Uppsala kommun når klimatmålet 2050
The purpose of this thesis was to examine how locally produced bioenergy may contribute to meet the climate target year 2050 in the municipality of Uppsala. The
goal of reduced GHG-emissions from current 6,8 ton CO2-equivalents to 0,5 ton CO2-equivalents per capita and year, year 2050 is based on avoiding harmful penalties
of an increased level of GHG in the atmosphere. By estimating available biomass in the county together with examining future technologies and emission factors for the substrates used, four possible future scenarios has been developed focusing either on electricity generation or production of biofuels. GHG-emissions of year 2050 have been calculated using the software LEAP.
The conclusion is that bioenergy, depending on how it is integrated in the energy system, may reduce greenhouse gas emissions between 0.6 ton CO2-equivalents and 1.4 ton CO2-equivalents per capita or 12% to 25% compared to 5.5 ton CO2-equivalents in the reference scenario 2050. The greatest reduction is obtained if biofuels are produced in combination with energy efficient heat requirements in
buildings..
Hur ser börsnoterade fastighetsbolag på vakans : En undersökning av den kommersiellafastighetsmarknaden
The commercial real estate market makes up a large part of Sweden's property portfolio, as well as other open, free markets in the real estate market it is regulated by supply and demand. There are several factors that affect the supply and demand in the commercial real estate market, for instance the price, type of real estate and the condition of the real estate. In order to achieve success in the commercial real estate market it requires that real estate agents have a certain expertise and flexibility in their thinking to adapt commercial real estates to supply and demand. Active investors on the commercial real estate market are for instance private real estate agents, their knowledge and experience will help increase the value of commercial real estate in the long run. In order to provide the market flexibility in its real estate portfolio, vacancy is a factor that can be used.
Frånluftsåtervinning i ett äldre flerfamiljehus : Hovgården - Borlänge
I detta examensarbete undersöktes möjligheten att installera värmeåtervinningssystem för ett flerfamiljehus i Hovgården som ligger en bit utanför Borlänge. I rapporten redovisas två olika sätt för energibesparingar som är aktuella för att ersätta borttagning av oljepannan som används i huset i dag. En rad svårigheter dök upp under undersökningen för installation av nytt värmesystem. Lämpliga lösningar kunde hittas efter mycket analys. Syftet med rapporten var att undersöka möjligheten och lönsamheten för installation av något av följande system; FVP eller VBX-modul som kan återvinna värme ur frånluften.
Darfur - Ett utdraget Rwanda?
In the Darfur region, located in the West of Sudan, there is a conflict between rebel groups and the government-supported Janjaweed militia. The fighting?s, which started in 2003, has caused the loss of at least 200 000 human life and more than 2 million people have fled their homes. The conflict has been described as a? prolonged Rwanda?.