Sökresultat:
983 Uppsatser om Heat transfer - Sida 50 av 66
Hur kan en applikation anpassas till Windows Phone? : En studie som visar utvecklingsprocessen för en smartphone-applikation.
The most common types of smartphones in Sweden are iPhone and Android. Development in the IT feld is constantly changing and Windows Phone is a new operating system that has been introduced on the Swedish market in 2010. However, Windows Phone user interface is quite different from iPhone and Android.The numbers of applications for smartphones are increasing, and users are making greater demands on better usability. Users want the application to be easy to understand and fast to bring into play. If the application contains a bug or has other user problems, it can ruin the entire experience. If the user does not have a good experience of the application, the user will quickly stop using the application.Companies that do not have any mobile applications would probably begin with an iPhone application.
Laserinkopplingselement För XFEL Laser Heater : Från Idé Till Färdig Produkt I Designstadie
Uppsala University is involved in a large international collaborationto build the Laser heater system for the European Xray Free-electronlaser in Hamburg, Germany. In this thesis I describe a laser incouplingdevice into the vacuum chamber of this laser heater all the way fromthe specifications to a completed design.The laser heater is a very important part of the XFEL and thepart described here is a part of the vacuum system needed to couplean external laser into the electron vacuum system and align it withthe electron bunches in order to heat them. The task was started by studying the literature about the basic theory andthe design of vacuum systems. After this study and collection of ideaswith colleagues I started to prepare different concepts to solve thetask. The ideas can be put into two categories, in one case the couplingmirror is located inside the vacuum chamber and in the second caseoutside.
Shuttling Between Cultures: Expatriation in the Context of Sweden
Being a successful global business player depends on firm?s ability to mobilize its resources worldwide. For this reason getting the right people with the right skills, at the right time, at the right place is crucial and makes expatriation one of the most important issues of today?s business world agenda. In terms of expatriation; national culture provides the context for the whole process.
Den rådande tolkningen av samma eller likartad verksamhet : Konsekvenser vid generationsskiften i fåmansföretag
On the 26th of January 2010, the Supreme Administrative Court in Sweden gave five rulings which greatly affect the possibility to keep a close company within a family by transferring the ownership of the company to the next generation. The five rulings concern the interpretation of the prerequisite, same or similar activity, which can be found in section 57, clause 4 of the Swedish Income Tax Act. The prerequisite is fulfilled when an entire or parts of a business is transferred to another close company and the receiving company?s business activity is within the framework of the transferring company?s business activity or when the companies have a similar connection. Depending on which shares that are being evaluated, the prerequisite can refer to both the shares in the receiving or the transferring company. When the prerequisite is fulfilled, a standardized amount of the business income will be taxed as capital gains and the surplus will be taxed as earned income.
Hållbart ansvarstagande för ett medelstort byggföretag i Sverige - En analys av värdeskapande aktiviteter som bidrar till hållbar utveckling.
This report deals with activities that from a CSR perspective are considered to create a shared value for a medium-sized construction company in Sweden. The CSR definition used in the report is the European Commission?s since it reflects the valuecreating aspects of CSR, in contrast to the traditional philanthropic aspect of CSR.Companies in the building construction industry have difficulties identifying activities that create value in society and in the company. The aim with the project is to, from a CSR perspective, identify and evaluate value creating activities in a building construction company. The activities will be evaluated with respect to competitiveness and how they can be implemented into an organization.
DFM för Lasersvetsning
The purpose with this thesis was to develop a designguideline which will simplify the development of new products that will be laser welded. The need for this thesis has come forward from the quality problems that Volvo Construction Equipment, Components Division is having with their laser welding manufacturing unit. The reason for the problems emerges from the bad communication between the development unit and the manufacturing unit within the company when the products produced today was developed. This resulted in products that were hard to and in some cases almost impossible to weld. To avoid these problems from occurring again it was needed to gather the experiences within this area and compile it and present in a brief a pedagogical manner. The information for the groundwork of our results has been gathered by interviews of several key persons in Volvo Construction Equipment, Components Division.
Kärnkraftens värde i framtiden : en jämförelse med kraftvärmeteknologi från biobränsle
The debate on the future of Nuclear power in Sweden has increased with the discussion on global warming. The uncertainty of fossil fuel- and carbonprices the latest years has aroused considerable interest in Nuclear from power companies, industry and politicians. Nuclear power plants have negligible CO2 emissions and are not directly affected by increased price of emission rights and fossil fuels. The future power production needs to reduce its emissions of greenhouse gases to become sustainable.
The purpose of this study is to examine the value for power producers to have the option to invest in Nuclear power and how a Nuclear power venture would affect future electricity prices. The study uses two methods, a traditional cash flow model and real option analysis, to estimate the value of Nuclear power.
Stadsklimat/Gatuklimat :
The purpose of this paper is to understand the climate of the street and how it can be modified to better meet the needs of the street and the user groups. At the same time the conditions of the street and its surroundings also has to be taken into account. To accomplish this it is necessary to have a broad knowledge of the climate conditions in the city. Therefore an overview of the climate elements and how these are modified in the built-up areas are given. The part of the paper which deals with the city climate has a global approach to be able to give an as complete picture as possible.
Ett anpassat ledningssystem för informationssäkerhet : - Hur gör en liten organisation med hög personalomsättning?
This paper aims to find out how to implement an information security management (ISMS) system that is based on ISO/IEC 27001-standard into a small organization with high employee turnover. The standard employs the PDCA-method as a course of action for implementing the standard. The reason for implementing such a system is to introduce information security to the organization and to maintain it despite the changes in management. The paper based it?s survey on a case study of a student nation in Uppsala, Sweden.
Utvärdering av miljönytta för olika miljöcertifieringssystem för byggnader : En jämförande fallstudie på Swecos kontor i Stockholm, Göteborg och Malmö
This thesis examines the environmental benefits resulting from the choice of environmental certification scheme, with focus on energy. This was carried out by studying the measures that were implemented as a result of the certification of Sweco's three largest office buildings in Stockholm, Gothenburg and Malmö. The office property in Stockholm has been certified with the Swedish Environmental Building, Gothenburg with the British BREEAM and Malmö with the U.S system LEED.The results from the study indicate that an environmental certification can reduce the energy consumption by up to 59 percent and the water consumption by 20 to 66 percent. However; the interviews, literature study and simulations in MATLAB indicate that the size and scope of these environmental benefits depend on several identified factors: the type of building and its conditions, system selection, grade level, the choice of indicators, the ambition of those involved and when in time the certification process begins. The comparison between Environmental Building, LEED and BREEAM showed that Environmental Building for the office property in Stockholm gave the largest environmental benefit in terms of reduced energy consumption thanks to several large measures.
Generationsskifte : Särskilt om gåva och blandade fång
All small- and medium-sized family owned enterprises need to sooner or later undergo a change of ownership. When the elder generation is approaching their retirement they have to make a choice; either hand over the business to the younger generation or sell it to an outsider. The succession of the family owned business can create a life long dilemma for the entrepreneur. From the view of taxation there are, according to current legislation, no reasons to plan the succession to the younger generation. If no preparation has been done, the optional law system concerning inheritance will divide the property left.
100 % svenskt foder till mjölkkor :
As for today, a large quantity of protein feeds is imported from other countries to be used in
the Swedish dairy production. The main import is soya from Brazil. The soya-production in
Brazil results in negative consequences for the natural environment in the area, and the long
transport of the feeds requires a lot of energy. The organic dairy production in Sweden is,
with the highest probability going to be forced to use 100 % organic feed to the cows in the
year 2005, due to new EU-rules. These are some of the causes why there are reasons to look
closer at the possibilities to feed Swedish cows with only Swedish feeds.
In this study, I have looked at the KRAV-rules for organic feeding, where the goal is feeding
with only KRAV-approved feeds.
Alternativ för värme- och kylaförsörjning i planerade kontorsbyggnader på Arlanda
This thesis consider alternatives for heating and cooling planned office buildings at Arlanda airport. The thesis is divided into three parts where the third part is a shorter synthesis of the two first. In the first part the energy demands of the buildings are modelled in a computer program. Two different building models are created, one more conventional and one with good energy properties. The results shows that with proper construction and ventilation systems etc.
Konstruktion av kostnadseffektiv fläkt till härdningsugnar
Scana-Booforge is a Swedish company which specialize in heat treatment of various metal. The treatments take place in quenching ovens, where fans are used to circulate the hot air. The fans used today do not have a satisfactory lifespan. This thesis aims to develop a new design of the fans for the quenching ovens, and the goal is that the new fans will bring cost savings for Scana-Booforge.The design development process started with mapping out the environment in which the fans operate, and with analysis of the existing fan structure and damages, in order to establish the cause of failure and of short durability. The performance of the fan were also established at this stage.
Biomass losses during short-term storage of bark and recovered wood
Storage of biomass is associated with problems like heat development, biomasslosses, and reduction of the fuel quality. Certain processes such as biological- andchemical degradation are responsible for these storage problems. This master?sthesis was carried out at Vattenfall Research and Development AB and is alignedtowards quantifying the biomass losses from short-term storage (1-2 months) ofbark and recovered wood. The biomass was stored in outdoor piles during differentseasons, campaign 1 (summer) and campaign 2 (autumn).