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3141 Uppsatser om Hellisheiði power plant - Sida 55 av 210
Framtidens elnät : Hur elbilar och solceller påverkar på det lokala elnätet
The purpose of the project is to determine the impact of solar cells and electrical vehicles on the future electricity grid and distribution network. Future electricity grids will be affected differently than it does today. Therefore, it is important to determine the impacts so that the current electricity distribution system can be developed and redesign to achieve the future demand. In Sweden, government has changed rules and laws in order to make it easier for private sector to invest in renewable energy sources. Our project focused on the impact of the solar cells and electric vehicles on the low voltage electricity distribution.
Uthållig sanitet : en förstudie i staden Picota, Peru
The access to good sanitary facilities is an important factor that elevates the experienced living standard as it improves hygiene and reduces the transmission of deseases. The ratification of the millennium goals by 189 countries demonstrates that this is an important international issue. Together the countries have taken upon themselves that the proportion of the population that lacked access to sustainable safe drinking water and sanitary facilities in the year 2000 will have been reduced by half by the year 2015.
In Peru, the construction of sewage pipe networks to transport the sewage out of the direct human environment is progressing. The safety and sustainability of these systems can be questioned, since in Peru the sewage seldom receive any treatment before being emitted to a recipient. This is taking place in Picota and sorrunding villages as well.
In the last 25 years several systems implementing small-scale onsite treatment have been introduced throughout Latin America in an attempt to give more people access to sustainable and safe sanitary facilities, reducing water consumption and taking advantage of the agricultural values of the sewage fractions while protecting the environment from its negative impact.
In this study three different sanitary systems and the effects of different population growths were compared.
Analys av skillnader mellan internationell och svensk rapportering av inträffade händelser på kärnkraftverk
Report of diploma work conducted at the Swedish Radiation Safety Authority (SSM) as part of the bachelors program in Nuclear Engineering at Uppsala University.All nuclear power plants in Sweden are obliged to report any deficiency in their barriers or the defense in depth in obedience to SSM?s regulations concerning safety in nuclear facilities. In addition, there is an international system for reporting such events. The purpose of this thesis is to study the Swedish report system and to analyze the differences between Swedish and international event reporting.In the Swedish system, SSM?s regulations are effectuated by means of event reports classified as category 1-3, designed individually at each Swedish facility.
Biogas på Wapnö : Analys av framtida energisystem
Considering that the price and demand for energy gradually has risen over the past decade and a wider discussion about the human impact on the environment has become increasingly more important and given a clearer role in modern society. This has contributed to increased incentives to reduce the use of fossil fuels and increase the use of renewable energy.The agriculture currently accounts for 20 % of Sweden's total greenhouse gas emissions. A way for an agricultural company like Wapnö AB to reduce their emissions could be to utilize existing renewable energy sources within their own premises.The report's aim is to create an energy audit of Wapnö?s existing energy system and how it changes with a future biogas plant in operation. The energy audit is used to illustrate how the company?s climate footprint could change.
Kraven på ägare till minireningsverk skiljer sig åt mellan olika kommuner
Discharge of inadequately treated waste water containing nutrients such as phosphorus and nitrogen as well as organic matter and bacteria is associated with a risk of eutrophication and contamination. The Swedish government has decided upon several Environmental Quality Objectives aiming to reduce the emissions of nutrients to water bodies.In Sweden, there are between 675 000 to 1 000 000 on-site sewage systems. Recent studies have shown that the function of small sewage treatment plants is in many cases insufficient. To prevent this regular service and supervision by a professional is needed. The focus of this study are small sewage treatment plants which use a technique where mechanical, chemical and/or biological reduction of pollutants is being used in the same facility to reduce nutrients in household wastewater.The aim of the study is to investigate how different municipalities ensure that small sewage treatment plants fulfill the requirements and reduce pollutants as efficient as the manufacturers claim.
Membranbioreaktorteknik- en framtida lösning på Lundåkraverket? : Membrane bioreactors- A future solution at Lundåkra wastewater treatment plant?
Membrane bioreactors (MBR) combined with biological phosphorous treatment (Bio-P) has been investigated if that could be an alternative to the future expansion with conventional active sludge treatment at Lundåkra wastewater treatment plant (WWTP) in the proximity of Landskrona, Sweden.The results showed that the surface demand in the biological treatment will be reduced with 67% with the MBR-alternative compared to a conventional activated sludge process. The nutrient removal in the MBR-solution was decreased or unchanged for nitrogen-, phosphorous- and organic parameters. However, the energy demand will increase with an estimated cost of approximately 1 million SEK annually. Moreover, the extra chemical consumption is estimated to cost 370 000 SEK annually.The disturbances caused by filamentous bacteria such as sludge dispersal could be resolved with MBR-technology because the membranes are not affected by these organisms. The Bio-P process combined with MBR-technology works if the wastewater recirculates from the membranes to an aerobic zone.In the proposal, there will be a new pre-treatment step, for instance hole screens.
Förändras syreupptagningsförmågan hos kvinnor efter regelbunden stavgång respektive gång utan stavar?
The purpose of this study was to evaluate if there is a difference in maximal aerobic power (VO2-max) between walking with poles and without poles. Thirty-four healthy women between the ages of 22 and 60 years participated. They were randomised into two groups, seventeen individuals walked with poles and seventeen walked without poles. Both groups walked four kilometres three times a week, for eight weeks. Each completed a submaximal cycle ergometertest before and after the exercise period.
Flygteknik : Konceptstudie av ett obemannat flygplan
Unmanned aerial vehicles (UAV?s) are nowadays greatly appreciated. The advantage over manned airplanes are great since UAV?s can be much smaller and therefore lighter. The goal of this project is to evaluate the performance of an environmentally friendly UAV using only lithium-ion batteries.
Broar, länkar, gränser. Kultur, makt och marginalisering i diskursen om linkworkers/brobyggare
Abstract:The aim of this study is to critically analyse the discourse of linkworkers, a integration project in a ?multicultural? school in Malmö. In the project, four persons with different ethnic / cultural background where employed to work as a link between the school and the parents, and between the Swedish culture and the children's and the parent's ?original? culture. My material consists of evaluations of the project and interviews with school staff.
Gruvparadoxen: makt, legitimitet och politik : En kritisk diskursanalys om policyprocessen kring uranutvinning.
This thesis examines how power is constructed through language use in the Swedish mining policy with the legislative change proposition to enabling uranium mining. The aim is to analyze differences in how the government and municipalities formulate and justify their positions. The study adopts a qualitative case study design and applies Fairlough?s critical discourse analysis. The empirical material consists of a governmental press release and public consultation responses from municipalities.
Varför har European Civil Peace Corps inte bildats?: En studie om civilt fredsbevarande, maktutövande och kämpande diskurser.
The purpose of this study is to find out why the EU has not yet implemented the EuropeanCivil Peace Corps (ECPC), which the EU Parliament took a resolution about in 1999. Themore specific questions posed are whether the concept of ECPC has been redefined, whetherthe issue of ECPC has been prevented from coming up for discussion and decision-making,and what this has meant for the non-implementation. Steven Lukes' theory about the threedimensions of power is used in combination with a discourse analysis method. The materialused is documents from the EU Parliament's decisions and debate about ECPC, and ECPCfeasibility studies. In the analysis I find one "law and order"-discourse and one "peaceknowledge"-discourse.
E- mobbning : Mobbing between young people with the use of mobile phones
This graduation paper treats e-mobbing via the different communication medias of the mobile phone. The purpose of the research has been to describe student?s experience of e-mobbing via the mobile phone?s different integrated functions as phone calls, sms, mms and e-mail.In this poll investigation asked 100 students of 15-20 years of age.The interviews made have shown that girls are more exposed to e-mobbing, e.g. indirect mobbing. In my research it is possible to see that girls are more exposed than boys to threats of violence via sms, the spreading of rumours and the danger of being called different things.It is also possible to see in the result of the interviews that the mobber wants to experience power, something which is not unusual in all types of mobbing.
Motivation bland v?rnpliktiga n?r v?rldsordningen f?r?ndras: En intervjustudie om hur v?rnpliktigas motivation till fortsatt yrkesmilit?rt arbete p?verkas.
This study takes its starting point in ongoing changes and differences in the global power dynamics. The liberal rules-based world order that has been acknowledged for governing the world with the US as the hegemon of power has been strongly challenged during the last decades. Russia?s invasion of Ukraine can be seen as an example of ongoing changes in the world order, with Russia as a challenger to the US as the hegemon of power. The changes and instability that this has led to for Sweden's national security situation can be seen as a concrete example of how ongoing changes in the world order affect Sweden?s foreign policy.
Den bristfälliga implementeringen av LSS en studie av maktaspekten i mötet mellan socialtjänsten och människor med psykiska funktionshinder
In this study, the aim is to show how the social services fails to implement a specific rights law (LSS) wich is supposed to have the function of protecting the wellfare and provide specific rights to people with severe mental disabilities. By applying chritical theory on this case the aim is to provide an alternative answer on why it is possible for the social services to ignore these peoples rights.By revealing the power structures in the encounter between the system and a person with mental dissablilities, I conclude that people with mental disabilities does not fit in when it comes the social sevices way of implementing the law and further more that a private person is extreamly exposed to the systems arbitrariness..
MAKTASPEKTEN I MÖTET MELLAN KLIENT OCH SOCIALSEKRETERARE ? en forskningsöversikt, utifrån maktens fyra ansikten
Syftet med denna forskningsöversikt är att undersöka hur makt och maktrelationer beskrivsoch teoretiseras i forskningen mellan socialsekreterare och klient med fokus på klientensbeskrivningar. Denna studie är en integrativ och kvalitativ forskningsöversikt med enabduktiv ansats, där 29 tidigare studier har tematiserats och analyserats med hjälp av maktensfyra ansikten. Studien påvisar att maktbegreppet är ett komplext och svårdefinierat begrepp.Studien visar hur makten kan betraktas utifrån maktens fyra ansikten inom det sociala arbeteti mötet mellan klienten och socialsekreteraren. Vidare diskuteras rekommendationer gällandemaktaspekten för det sociala arbetet utifrån olika studier samt rekommendationer för fortsattforskning. Det är viktigt att klienternas perspektiv, såsom upplevelsen av makt och kontroll,tas upp angående deras möte med de professionella.