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• The comparison between the environmental performance index of the wood-gas as an alternative fuel and the life cycle assessment rate of the lpg, and gasoline-powered vehicles

  35-44

  István Bodnár

  Views:

  1007

  This paper presents the Life Cycle Assessment of the wood gas powered car. I have compared the results with the data of the gas powered cars. The wood gas powered cars will be presented from their invention up to this day. I will describe in detail the chemical composition of different types of trees, the heating value and the reaction equations of gasification. I have made a cost analysis and I have concluded that if wood gas is used as petrol, the costs can be reduced significantly.

• The Past, Present and Future Research Results and Opportunities in the Sand Ridge in the Danube-Tisza Interfluve

  12-20

  Imre Cserni

  Judit Pető

  Attila Hüvely

  Views:

  79

  In this paper we wish to give some information about the research results and practical experience, the current and future opportunities of the sand rige of the Danube-Tisza Interfluve without aiming at completeness. In our researchgoing on for several decades we have achieved a lot of results and we were the first to write down several of them. In this paper we want to provide a brief overview of the main directions of our research accomplishments and foremost we would like to draw attention on our main study results.

• The Economy Contexts of the Modern Growing of Corn

  254-259

  Árpád Ferencz

  Views:

  97

  The cereals are the most important and most determining cultivated plants of the world and our homeland. Their importance manifests itself in the fact that corns in the ear and corn occupy collectively 50%- of the world's tillage areas and 66-68% of the tillage areas of our homeland. The competitiveness of the cultivation to a great extent depends on the modernity of the production, which is especially valid for our homeland. So I intended to analyse the economic situation of one of the most important cereals, the corn through the activity of a family economy working well. I examine the modern corn growing technology in my work. I present the operations belonging to the technology applied by the economy and I outline the operation norms. I calculate the expenses arising in the interest of corn growing, I define the material costs incurred, the personal expenses, the amortisation and other expenses. I calculate the income from the sales of corn growing with and without support and I also calculate the main capital efficiency indicators.