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1325 Uppsatser om Alternative fuels - Sida 27 av 89

Inga miljövinster med ekologisk produktion? : Lägesrapport över den svenska jordbruksdebatten

Organic agriculture is financially promoted in Sweden by special environmental support and as consumers we are all encouraged to buy organic food. At the same time scholars at the Swedish University of Agricultural Sciences claim that organic farming does not provide any environmental benefits. The main criticism is that organic farming has lower yields than conventional, which means that more land is needed to produce the same amount of food as in conventional farming, leading to deforestation and loss of biodiversity. As for climate change, the critics claim that the significantly higher productivity in conventional crop production compared to organic, releases surplus land, which could be used for bio-fuel production and thereby replace the fossil fuels. The critics also claim that organic farming causes higher nutrient leaching than conventional.

Säkerhet i smarttelefoner : En jämförelsestudie mellan bärbara datorer och smarttelefoner i verksamheter

Smartphones have become more common as business tools within the workplace. With its many features and great flexibility, the smartphone has stormed the business world and become an alternative or complement to the laptop. As these mobile units' popularity has increased, the interest of businesses to invest in this new technology has increased, but has security kept up with the technology developments?This study aims to conduct a study to see if the companies in the IT industry have the same safety awareness for smart phones to laptops.The study shows that companies have greater safety awareness and higher safety requirements for laptops than smartphones. Meanwhile, both end-users and management are well aware of the risks and threats that the smartphone is facing..

Solenergi och värmelagring i kvarteret Lagern

Humanity stands before a huge challenge to lower its emissions of carbon dioxide and its use of energy at the same time as the global population is rising and the developing countries are being industrialized. A lot of newly built buildings are due to this challenge, designed to be more energy efficient but also use renewable energy resources instead of pollutant fossil fuels .Solar energy is one of the purest forms of energy that exists in abundant amounts, which is why it is most likely that it could come to play a major part in the future energy market. The main purpose of this report is to investigate the possibility to implement a sustainable energy system with solar thermal heat and  heat storage as main sources of energy in the neighborhood ?kvarteret Lagern?, which is the area where the old football stadium ?Rasunda Stadion? was located. New developments within different heat storage techniques have opened up new approaches to enable buildings an all year round heat supply from solar energy. This report will focus on heat storage in boreholes. At the present here is only a preliminary plan of how the neighborhood is supposed to be designed.

Örter - en nisch? :

A tight economy and a keen competition force the Swedish agricultur to do a structural rationalization. The quantity of farmers is less but the units are growing. How to make money I think some kind of niche is necessary. In my examwork I have locked how to farm herbaceous plant and the marking of herb to feedstuff for horses. Today health food and alternative medicine are accepted to use and there is an increase in demand. The Swedish market for herbaceous plants to horses is small and the products are mostly imported. But there is a group of consumers who is willing to pay a higer price for Swedish cultivated herbs. The only way to find out which herbaceous plants I could cultivate is to make a test cultivate. I think that the market for herbaceous plants is growing.

Men vi tänker ju ta... : En fokusgruppstudie om undomars inställning till körkort

Due to the decrease in obtaining driver?s licenses among young people, the main purpose of this study was to acquire a deeper understanding of young people?s attitudes towards driver?s license and towards driver?s education. This is a qualitative study with a theoretical approach, which combines Bourdieu with post modern theories. By using focus groups a wide rage of attitudes among young people have been gathered. Having a driver?s license is still considered a standard among young people even though their attitude mostly depends on their need for one.

Kreativ design som ett sätt att lösa komplexa problem : Ett snapshot av designprocessen vid utveckling av en trailer för ett fiktivt tv-spel

A current issue today is to try to implement creative design as a way to solve wicked problems in scientific contexts such as HCI. Since the problems are wicked, they have no given solution which makes the traditional methods inadequate. In these cases, creative design can be an alternative. Creative design is not used in scientific contexts because it is viewed as something unaccountable.In this essay we argue that creative design not necessarily have to be unaccounted. We discuss various views of creative design and translate theory to a practical context.

Att designa användargränssnitt för äldre människor med afasi

Our aim in this work has been to redesign ModernFamilies and make a user-friendly interface for people with aphasia. The focus has been to identify general issues they might face while using different technology and applications, in order to find better alternative design for ModernFamilies, with a focus on usability. To approach this issue, we used a qualitative method. Our study includes several interviews and observations preformed in conjunction with the AGNES project (AGeing in a NEtworked Society) and speech therapists. Aphasia requires simple design that in the same time gives them support to understand and use technology and different applications.

Behandla människan, inte symptomen! : En studie av komplementärmedicin

Den här studien fokuserar på komplementärmedicin ur fyra informanters perspektiv och med kopplingar till aktuella vetenskapliga diskussioner och strömningar. Bakgrunden till studien är en ökande användning av komplementärmedicin i samhället och livliga debatter kring dess vetenskapliga status. Syftet är att genom kvalitativa metoder belysa viktiga aspekter av informanternas användning av komplementärmedicin. Mycket uppmärksamhet ägnas åt informanternas syn på de olika metodernas effektivitet, hur denna definieras och vilka konkreta resultat informanterna strävar efter eller upplever..

ZigBee-teknikens möjligheter att trådlöst överföra EKG-signaler

In many clinical applications, it is desirable to transmit sensor information wireless. In earlier research, investigation transmit ECG signal using Bluetooth, was performed. However, when Bluetooth has some drawbacks it is of interest to investigate alternative methods, one such method is ZigBee. Bluetooth has higher data rate speed (1Mbps) than ZigBee (250kbps). However, Bluetooth consumes more power.

Industriella avloppsvatten i Chile : Identifiering av problem samt förslag på åtgärder

Chile and Santiago are struggling with heavy environmental problems as a consequence of urbanisation and industrialisation. In the Santiago region the air is seriously contaminated and most of the rivers are classified as heavily polluted.The aim of this thesis is to survey the industrial fluid waste situation in the Santiago region and to make suggestions on technological improvements or process changes. The purpose is also to study five different enterprises more closely and to give more detailed suggestions for improvement. Another purpose is to summarize relevant Chilean legislation.Information, provided by the supervisory authority, about the release of industrial wastewater to rivers has been analysed. Deep interviews have been made with authorities and consultants.

Cittaslow i Falköping :

Cittaslow is an international organization founded in Italy in 1999 by a few towns in Northern Italy, in order to stop the trend of people moving to bigger cities. The aim was to show the advantages of small towns and to strengthen their identities. Falköping is, since the certification in the summer 2008, the first Cittaslow in Sweden. Cittaslow is an international organization founded in Italy in 1999 by a few towns in Northern Italy, in order to stop the trend of people moving to bigger cities. The aim was to show the advantages of small towns and to strengthen their identities.

Värmepumpars inverkan på elkvaliten

Modern technology and fast development of heat pumps, the hunt for savings in energy consumption and the strive for environmentally friendly energy sources, convenience, and financial profit, have made heat pumps a reasonable alternative for the heating of houses.When the heat pump starts it will consume a considerable amount of current, which may result in a short-lived voltage-drop if the power grid is weak compared to the start-up current.The company Fortum Distribution which owns and administrates electrical network is interested in an investigation that deals with heat pumps affect on the quality of electricity.The purpose of this investigation is to study fast electrical fluctuations (flicker) as a result of start-up currents for single as well as multiple heat pumps on the same electrical station and from this evaluate whether there will be any problems installing heat pumps..

Delad berättelse ? dubbel glädje! Gruppterapi utifrån ett narrativt förhållningssätt.

During the autumn of 2010 a group of parents met together with two therapist at Mini Maria Hisingen. These parents did have children who had experience of using drugs. This study purpose´s to describe, analyze and understand what has been effective in the work together with this group of parents.The interrogative sentence is; Did we use a narrative approach and what impact did this approach had on the groupprocess? What did the group sessions contribute to the parents and would they recommend other parents to participate in similar sessions? All the sessions were recorded in video. The work was highly inspired by Michael White and his book Maps (2007).

"En skola för alla" : verklighet för elever med läs- och skrivsvårigheter och dyslexi?

Many researches have been done about the difficulties in teaching children with disabilities and like in this case dyslexia, which is the disability my essay is focused on. Earlier researches have investigated how and what teachers do practically when they have pupils with dyslexia and what help they have in their work. I wanted to investigate how the theories in National Compulsory School Curriculum (Lpo94) and about inclusive education in relation to the actual work in one Swedish school. My essay, with help of other research, has taken the expression ?school for all? and it?s meaning to what is possible to do in a real life work situation, with the assignments that schools have in Lpo94.

Kvinnor och Medier : En studie om hur tidskriften Glamour konstruerar stereotypa kvinnobilder på sina omslag

Sweden has an active and growing culture of feminist comic book artists that use comedy as a mean of disseminating political ideas and critic. In this essay I do a reparative reading of Sara Granér?s comic book All I Want for Christmas is planekonomi in order to find out if it advocates alternative orders and/or ways of expression. By exploring what the comic book does to me as a reader and how, using the term ?skev? ? a hybrid of queer that examines normativity not strictly tied to sexuality ? and gulesque theory ? a mix of feminism, cuteness, the grotesque and riot grrrl ?, I show that the comic book, through the use of comedy, works as a trojan My Little Pony, reclaiming the girly franchise, while challenging several so-called dichotomies, such as: femininity/masculinity; youth/adult; high art/kitsch.

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