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5236 Uppsatser om Power and control - Sida 47 av 350
FPGA för displayhantering och grafikgenerering i fordonsmiljö
This report is part of the major thesis carried out at Stoneridge Electronics in Bromma,Stockholm during autumn and winter 2005-2006. The background to the thesis is the trendwithin the automotive industry where color displays have become more common for presentationof information to the driver, a trend that has come to the commercial vehicle market. Thepurpose of the thesis has been to evaluate whether programmable logic, with respect to FPGAtechnology, could be suitable for display control and graphics generation of these more complexcolor displays in automotive environment.Within the scope of the thesis the FPGA technology has been investigated, i.e. whatopportunities and threats there are with aspect to environmental and security requirements. Inaddition, the market of FPGAs and pre-built IP-cores has been investigated.
Reglering av turbins ledskenor i vattenkraftverkmed hjälp av elektriska ställdon
Hydropower is the largest renewable energy source available in today's society. Operation and production is handled by high-tech electronics. This thesis is done on behalf of Statkraft Sweden AB who wants to explore the possibility of replacing the hydraulic cylinder with an electric actuator, generally as well as a case of a small power station on the river Nissan. Whether it is the chaplain or francis turbine vanes are actuated by hydraulic cylinders. Because of Gustavsberg hydropower is inconstant operation, this report is based on power calculations, which are read and computed according to the available hydraulic diagram.
Musikskolecheck. En undersökning om den nya musikskolechecken i Nacka kommun
AbstractThe future of ethanol is depending on good solutions for the production. ENA energy power plant produces electrical power and district heating by heating biofuel. By building an integrated bioenergy plant surplus steam could be used to produce ethanol as fuel to vehicle.This would mean that ethanol is produced renewable energy and the energy for the process derives from the surplus of power. ENA energy, MDH (the University of Mälardalen) and the energy authority has initiated a research project were different bioenergy combinations integrate with existing power plant. As a part of the project which size an integrated factory should be to gain the best efficiency for the plant was investigated. Consideration will be taken to the cost of the production in order to be competitive to the price of imported ethanol. Etanolens framtid vilar på bra lösningar för framställning. I ENA energi kraftverk i Enköping produceras el och fjärrvärme genom eldning av biobränsle. Genom att bygga ett integrerat bioenergikraftverk där skulle man kunna använda överskottsånga till att framställa etanol som fordonsbränsle.
Bolivia kvinnorörelser och multietnisk stat
This thesis examines the possibility of Bolivian indigenous women?s social movements? getting their demands of a gender equal society fulfilled in the new state which was initiated in 2005 when Evo Morales became the first president representing the indigenous people of the country. By using a qualitative method I have showed that although the Bolivian indigenous women?s social movements? historically has been significant political actors for social change in the country, with representation at both regional and national level, Bolivian women are still subordinated in the social and political sphere. By applying a feminist intersectional perspective which takes its point of departure in a understanding of power as multidimensional, where gender, ethnicity and class are constitutive principals, multiculturalism theories and a social movements theory framework, I have found that even if institutional changes, that opened the system increased the indigenous women?s social movements political participation in Bolivia, power structures based on gender limited their possibilities to influence both socially and politically.
Natursyn och kärnkraft / View of nature and nuclear power
Kärnkraften har så länge den funnits varit en omdebatterad energikälla. Syftet med denna
uppsats är att utreda och få en bild av hur och på vilket sätt natursynen hänger ihop med
åsikter om kärnkraft. Jag har redogjort för vad energi är, kärnkraftens historia i Sverige och
som energikälla samt beskrivit för- och nackdelarna med kärnkraften. För att kunna ge en bild
av kärnkraft och natursyn har jag genomfört kvalitativa intervjuer med personer som på olika
sätt är insatta i problematiken kring kärnkraften. Min undersökning visar bland annat att
natursyn är ett komplext och stort begrepp som vi bör vara medvetna om hur det fungerar i
arbetet för att förbättra miljön..
Skolverkets kursplaner - blev det som det var tänkt? En undersökning om grundskolans musikundervisning
AbstractThe future of ethanol is depending on good solutions for the production. ENA energy power plant produces electrical power and district heating by heating biofuel. By building an integrated bioenergy plant surplus steam could be used to produce ethanol as fuel to vehicle.This would mean that ethanol is produced renewable energy and the energy for the process derives from the surplus of power. ENA energy, MDH (the University of Mälardalen) and the energy authority has initiated a research project were different bioenergy combinations integrate with existing power plant. As a part of the project which size an integrated factory should be to gain the best efficiency for the plant was investigated. Consideration will be taken to the cost of the production in order to be competitive to the price of imported ethanol. Etanolens framtid vilar på bra lösningar för framställning. I ENA energi kraftverk i Enköping produceras el och fjärrvärme genom eldning av biobränsle. Genom att bygga ett integrerat bioenergikraftverk där skulle man kunna använda överskottsånga till att framställa etanol som fordonsbränsle.
ABC+SCM=Sant?
Background:Companies of today commonly search to gain competitive advantages throughout different forms of co-operation, one of which is referred to as Supply Chain Management. Although little research has been assigned to the topic of how to manage and control this type of relation, lately a growing number of academics has been arguing that ABC is an appropriate mean of controlling this type of relationships.Purpose:The purpose of this thesis is to investigate to what degree the ongoing debate on the use of ABC as a mean of control within SCM correspond to the present theories related to ABC and SCM respectively.Research method:The thesis takes it?s starting point within the literature, meaning that the empirical information consists of published articles in the ongoing debate. This information is put in relation to the original theories concerning both topics.Conclusions:The results shown in the thesis in some content agrees with the ongoing debate referring to the positive aspects that could result from using ABC as a mean of control within SCM. However the main result of the study is the discovery of a lack of discussion concerning the problems that implementing ABC within SCM might implicate, a fact that we believe contributes to the mainly positive view on using ABC within Supply Chain Management..
Investeringar i småskalig vattenkraft vid befintliga dammar : - En studie av teknik-, ekonomi- och miljöfrågor
In this thesis a method for evaluating investments in small scale hydro power is presented. An analysis of the future position that small scale hydro production will have on the Nordic electricity market is also carried out. This is done by an inventory of technology and economic and environmental aspects. The inventory is also a guide as to how the project should be implemented.Hydrolyzer is the name of the Excel tool developed to evaluate investments. The tool requests input data from the user and then evaluates the investment and generates a sensitivity analysis.
The impacts on Indian farmers when converting to organic cotton production : an organisation theory perspective
Changes in the environment are affecting the world market, and pressures from several stakeholders? are forcing different enterprises to adjust to the current situation. Farmers? difficult working conditions and environmental impacts of the conventional cotton production in India have been highlighted. The small-scale production that is characterising India?s cotton farmers implies an insufficient competition power.
Att göra det digitala till det normala : En studie av svenska skivbolags samarbete med iTunes MusicStore och Spotify på den digitala musikförsäljningsarenan
Purpose/Aim: The purpose of this thesis is to define and analyse how Swedish record companies work with digital musical content distributors. A more narrow aim is to show how the record companies and with the digital musical content distributors iTunes Music Store and Spotify create incentives for consumer?s to use legal digital music channels through the Internet. To further circle the core of the problem following questions have been asked: How does the record companies provide iTunes Music Store and Spotify with digital content and what is done by the record companies to retain control over the material? How do the record companies view digital musical sales and what incentives are given to consumers to buy music digitally? Finally, What position of power do iTunes Music Store and Spotify have on the digital content arena?Material/Method: The data collected for this thesis is retrieved through personal interviews with representatives from three of the four major record companies Universal Music, Warner Music and EMI and their Swedish branches.Main results: The consumer?s access to digital content through iTunes Music Store and Spotify is of the utmost importance and is a prerequisite.
Värmning av avloppsvatten med spillvärme för att förbättra kvävereningen -Temperaturens inverkan på kvävereningen
The goal for this master thesis project has been to investigate the power quality in adistribution grid, which has a high fraction of dispersed power production due towindmills. The study has been done on a grid in Laholm South of Halmstad, whereapproximately 45 windmills are connected to the distribution grid owned by SHKEnergi. The investigation has been focused on to two radialy fed 20 kV lines, wheretwelve windmills are connected.Voltage variations have been studied by creating a model of the grid in the simulationprogram SIMPOW. The largest deviation that has been found in any point of the gridis ±1.9 % of the nominal voltage. This deviation is a result of varying powergeneration from the windmills and the voltage regulation at the connection point ofthe line.
Flödesekonomins dimensioner : supply chain management
It is of increasing importance to in the most effective possible way, manage and control all the transactions of raw materials, products and information that are exchanged between an organization and all its operators. These flows and the need for strategy and managing the processes of planning, implementing and control of the supply chain, has given name to the concept supply chain management. Supply chain management involves all movement and storage of raw material, and all the processes that is needed to manufacture a product from origin to consumption. Globalization, technology and increasing time and quality-based competition are all driving forces behind the concept and reasons for an increasing interest in supply chain management.The purpose of this essay is to by using a qualitative case study examine which decisive success factors that can be identified for effective supply chain management. We have compiled different theories on the subject to use for analyzing a case study Li & Fung, who is a successful supply chain management company.
"Lite snyggare, lite mer partyaktiga, lite mer Paradise" : En kritisk diskursanalys av kön och sexualitet i Paradise Hotel
The purpose of this thesis is to examine how power structures concerning gender and sexuality emerge through the use of language in the Swedish reality show Paradise Hotel. Of particular interest is the representation of heterosexual relations in the show. Because of its interest in the relationship between power, gender and sexuality, the thesis is based on theories from gender and discourse studies. The specific theories referred to are Michel Foucault?s understanding of power, stereotypes according to Stuart Hall, Yvonne Hirdman?s gender system and contract theory, Judith Butler?s heterosexual matrix and R.W.
Att definiera omsorgsbrist : En kvalitativ studie om socialsekreterares tolkningar av 2 § LVU utifrån intersektionalitet och makt
This study regards the Care of Young Persons Act, LVU, and the 2 § that focus on parent inability to care for their children. The assessment of parent ability to care for their children is performed by social workers in different municipalities. The law leaves room for interpretation concerning how to assess parent ability and therefore we found it interesting to study how social workers interpret 2 § LVU. The study?s aim was also to seek an understanding of how different categories, like gender, race, class and physical and psychical ability of the parents affect the assessment of their parenting ability, with a intersectional perspective.
Beräkning av värmeförluster och energieffektivisering av elbussar
The ?civilized? world is in need of fossil fuel in order to function. Hybricon AB is a company in Umeå that is developing a technology that hopefully can reduce parts of this need. They are currently testing their two electrical busses (with Hybrid backup) in city traffic on the roads of Umeå in cooperation with the county of Umeå. The busses are originally diesel-busses, but the diesel motor has been replaced with two electrical hub-motors with a power of 145 kW each that are powered by batteries.The batteries are charged at the end station after each route. In case the batteries should run low on capacity during driving, they can be recharged by the so called genset.