Sök:

Sökresultat:

2641 Uppsatser om Nuclear power - Sida 42 av 177

Fröplacering vid hög såhastighet - Väderstad Rapid jämfört med Amazone Cirrus

In today's agriculture efficiency and the capacity of tools and machinery are crucial. In this work we investigate whether it is possible to enhance the capacity of sowing by increasing the work speed of seeders, how seed technology affects seed placement, and if there is any difference between two different brands of seeders and their sow techniques. The seeders we have chosen to compare are Väderstad Rapid drill and Amazon Cirrus drill. The tillage capacity of the seeders and their traction power needs were examined as well.Väderstad Rapid and Amazon Cirrus were tested in a randomized block design with four replicates at three different speeds, 8 km/h, 12 km/h and 15 km/h. The seed placement at the different speeds was examined by dividing the seedbed into four different zones from its surface to its bottom.

Mediernas konstruktion av en politisk händelse En kritisk diskursanalys av två svenska morgontidningars medierapportering av oroligheterna till följd av presidentvalet i Kenya

News value is an essential part of which event media chooses to report about. Political events consider to bee news with potentional large value. Media has an enormous power and possibility to create news and construct there own reality and where the readers is given a false expression of what really happened. Today the media must show profit and that indirect affects how the media choose to describe political events. In the Kenya case is it therefore possible to draw the conclusion that the two news paper has different construction of the political event in Kenya.

Arbetsmarknadens spelregler : arbetslöshet bland utomnordiskt födda individer som bor i Finspångs kommun

Research has shown that immigrants in the Swedish society often, when seeking jobs, don?t get the same opportunities as the rest of the population. This thesis is a qualitative research that examines the problematic situation of unemployment among immigrants in the municipality of Finspång. The purpose of this study is to analyze how civil servants in Finspång apprehend and describe the labor market problems surrounding the immigrant groups that live in the municipality of Finspång. The empirical material is build upon seven qualitative interviews with eight civil servants working in Finspång.

Hur skolstarten framställs genom bilderböcker : Diskursanalytisk studie om framställningen av skola, lärare, känslor och makt

In this essay I have studied how the kid?s school start are described in picture books. The studied questions are: How the school is described in these selected picture books; what feeling does the main character have into the school start; how the teachers are described in this selected picture books and how are the power relationship described in these selected picture books?The method I have chosen for this essay is a discourse analysis of seven selected picture books with the meaning of starting school. All books studied are written during the 1990 and forward.

Myndigheten och den ensamstående föräldern. En studie av ensamstående föräldrar med barn och deras behov

In this study we describe the needs of lone parents and how the authorities fulfill these needs. The needs contain both economic and social aspects, such as the access to an employment, childcare and the possibility to social activities. For the lone parents being able to work the childcare provision must improve and be available in a greater extent during non-traditional working hours. It is also required that the housing benefit ceiling is increased so that the parents may work more hours without risking the loss of the housing benefit. The statistic about the housing benefit which we present shows that many of those with a low income are lone parents.

Mätsystem för effektförluster i en högfrekvenstransformator

To measure losses in a transformer with today?s methods is either slow or insecure. There s a new method developed by Alstom that hasn't been actualize in to a test-system and that has been the assignment in this project. The idea is built on a switched system and a CLR- circuit in the resonant frequency. The test-system has a calculated power-loss that make the efficiency to be as high as 99,8% and in reality over 95%.

Produktionsplanering av tvättmaskiner

Most major companies today have a visual identity. It answers questions like: which font do I use? and when can I use the logo or not? Westinghouse Nuclear Fuel in Västerås have a visual identity but no guidelines for the employees to follow. Further-more, rollups and rollup handouts produced by Westinghouse are not mentioned in the visual identity. ?erefore the external information from Westinghouse is someti-mes, both by employees and customers, perceived as not uniform.

Effekter av EDI

Background: It has been shown that EDI can yield positive effects within companies. Which effects are possible for a company to direct assign to the introduction of EDI and is it possible to estimate the total effect.Purpose: The purpose of this study is to estimate and analyze the effects of using EDI in electronic business. We also want to contribute with a model for measure and estimate the effects of EDI.Accomplishment: We have studied literature concering EDI and realized a preliminary studie in form of interviews with experts to establish deeper knowledge of EDI. We have also tried to estimate the effects obtained in companies in three different businesses, power, government and transport industry.Result: To obtain as good effects as possible it is important that the co- oporation is built on trust and engagement. Before implementing the EDI-system a thorough overhaul of the processes in the company should be done, involving both the top managers and the staff.

USA:s m?ngfacetterade strategi i Myanmar En komparativ analys av liberalism och realism i amerikansk utrikespolitik

This thesis examines the USA?s response to the military coup in Myanmar 2021 through a comparative analysis of the two dominant international relations theories: realism and liberalism. The study uses a qualitative text analysis of the US Burma act of 2021 to test the explanatory power of the theories in the formulation of US policy. The results shows that liberal theory has the greater explanatory power, as the US response was systematically motivated by a normative desire to restore democracy in Myanmar. However, some realist tendencies could be observed, especially through exception clauses preserving US national security interest and the mention of China?s support for the military junta in Myanmar.

Att leva som andra : Makt och hjälp i insatsen personlig assistans

The purpose of the study is that based on focus groups with personal assistants understand how self-determination and participation, expresses itself in work with the users. The study has a focus on the concepts of power and help and social citizenship in the context of self-determination and participation. We are interested to explore how personal assistants reason and argue about different design cases and situations related to self-determination and participation in the relationship with the users. For this study we have used a qualitative method and to collect our data we have used focus groups and different design cases (vignettes). To analyze our data we used the theory about power and help and the theory about social citizenship.

Styvföräldraskapet : ? Ett föräldraskap bland flera

The purpose of this study is to perform a description of how parents experience their life in a stepfamily and to examine how the parents experience the involvement from their new partner in the children?s upbringing. The issues are: (i) which expectations do the parent has on their new partner in the role as stepparent to the child, (ii) how active does the parent experience their new partners? step parenting concerning the stepchild and (iii) how does the parent expect the new family to take shape? A qualitative study has been done through interviews. The participants were sex biological parents, of which four were fathers and two mothers.

Det energiproducerande huset

We are heading towards a huge switch of how energy is produced with fossil fuels being replaced by renewable energy sources. It is not difficult to replace the energy you use in the house and there is no need for futuristic technology. There are already many established products on the market such as high efficiency vacuum solar collectors, heat pumps & small wind power stations that can supply the energy being used in a house. The company Sol & Energiteknik SE AB in Huskvarna has many different products which can reduce the need for an outside energy distributor. An average house in Sweden uses 15 000 kWh for heating, 5000 kWh for tap water and 5000 kWh for electricity.

Vindkraftverk av UHPC 2.2 : En undersökning av högpresterande betong med syntetfiberarmeringen STRUX

Användandet av betong som ersättare för stål vid produktionen av vindkraftverkstorn har ökat den senaste tiden. Betongtorn är betydligt billigare än ståltorn men problem som sprickbildningar, frostsprängningar och följaktligen armeringskorrosion har uppstått bl a på grund av vibrationer från rotorn. I fundamentet i vindkraftverk kan ovan nämnda problem också uppstå och det uppfyller således inte alltid funktionskraven. Det här examensarbetet undersöker möjligheten att eliminera dessa problem genom att använda en sorts högpresterande betong kallad UHPC 2.2 med syntetfiberarmeringen, STRUX. Jämförelser mellan tidigare empiri om högpresterande betong och laborativa tester på UHPC 2.2 visar att den senare är beständigare och ger möjligheter till en större sprickfrihet.

Småskalig vattenkraft vid Olofsfors bruksmuseum : Med faunapassage

In Sweden there are 1894 small-scale hydropower plants in operation, which together generate 4.3 TWh of electricity per year according to Swedish hydropower compound (SVKF, 2011). This corresponds to the annual consumption of about 860,000 Swedish households (based on an annual consumption of 5000 kWh). In the mid-1950s there were around 4000 small-scale hydropower plants in operation in Sweden before cheap fossil fuels and uranium competed with them, in the current situation only 1,894 of these are in use. If slumbering small hydropower plants once again would be taken into use and some new ones are built, we would be able to extract about 7 TWh of renewable electricity from these annually in Sweden, representing about 1.4 million households.The thesis intends to calculate and construct a hydroelectric power plant at the existing dam in Olofsfors and give suggestions on how the power station should run during the time that fish migration is greatest in Leduån.The turbine and generator to the station in Leduån at Olofsfors is designed by the height of the fall and the water flow through the dam. The turbine selected for the station is a CK-1000RM turbine with a 4-pole 250 kW generator from Cargo & power turbine Sweden AB, which is expected to deliver 1.2 GWh per year.

Specificering av produktionstransformatorer : Rekommenderade avsteg från IEC 60076 för att vid upphandling beskriva en robust enhet

As break downs of production transformers are costly and often result in long outages it is essential for reliability of operation that the transformers are manufactured to be robust. The aim of this M.Sc. thesis is to investigate if deviations should be made from the standard IEC 60076 ? Power Transformers in order to describe a robust large power transformer for procurement.The investigation has been conducted in three stages. In the first stage a definition of the term robust was developed in consultation with the client Vattenfall Vattenkraft.

<- Föregående sida 42 Nästa sida ->