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Changeable requirements & Answers With a dynamic system in order to continual improvement of the environmental performance of a rubber industrial big company
81-90Views:307The topic of this article is the analysis of the changeable environmental requirements for the Environmental Management Systems (EMS) of the companies. The strengthened environmental criteria of the 21st century creates new challenges for the participants of the business sphere. In order to satisfy the criteria of the stakeholders, it is necessary to build out a - by the top management - preferred and proactive EMS that can contain also a life cycle thinking method. This logic is supported by the new ISO14001:2015 standard, too. In the first part of the article the stakeholder conception and the new standard model is presented based on literature analysis. The second part of the article presents an environmental management tool developed by a multinational, tyre company. The model combines the stakeholder conception, the requirements and the life cycle assessment (LCA) in order to respond to the new environmental management challenges. The last part of the article closes with the new development possibilities of the presented environmental management tool worked out by the author.
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Calculations of Performance Losses for Automobile Vehicles
210-218Views:425Vehicle-energetic-models are used to analyze the performances and when a comprehensive structure is established even optimization could be done. For these kinds of models, the losses of the vehicles have to be known. These losses could significantly effect of the vehicle fuel consumption. From these losses the rolling resistance, drive elements and aerodynamic drag are discussed. This paper reviews some of the literatures that describes the calculation methods and gives us some idea about the degree of their value. Our further goals are to have an UpToDate loss coefficient dataset and calculation methods for further vehicle-energetic modelling.
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Engineering Spatial Ability and Spatial Geometry – Research Experiences 1.
383-387Views:261Spatial visualization skills have an important role in teaching and learning of engineering studies. Many studies have shown that there are correlations between various measures of spatial skills and performance in particular Science, Technology, Engineering and Mathematics (STEM). Many engineering students have problems with imagining a spatial figure and therefore to solve the spatial geometry exercises, so development of spatial ability is very important. We have developed special tools and worksheets for development of spatial abilities
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Food Security and Economic Growth: An Income Level Comparison
16-29Views:360Food security is a fundamental but often neglected aspect of economic growth and sustainable development. This paper examines the effect of food security on productivity (GDP/capita) over time, while taking the income level of various countries into account. Dynamic panel regression analyses suggest that food security is positively related to productivity, but this effect is stronger in more developed countries. The study highlights the complexity of the economic problems faced by the least developed countries, where increasing the consumption and supply of food is insufficient for significantly increasing economic performance.
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The impact of realization of solar power plant installation requests in Mandatory Purchase (KÁT) system on the electricity supply of Hungarian settlements
54-60Views:309The support system of renewable energy production was changed in Hungary in 2017. The legislator created the Mandatory Purchase (KÁT) system earlier to encourage the electricity production from renewable energy sources and waste. The Renewable Energy Subsidy System (Metár) changed the Mandatory Purchase (KÁT) system from the 1st of January in 2017. It had been known before Metár came into force that the supported period in the Matár would be only 13 years while it was 25 years in the KÁT. Therefore, a real rush started for the KÁT support licenses in 2016 in order to make more beneficial contracts by the investors. At the time, the Hungarian Energy and Public Utility Regulatory Authority (MEKH) released a record amount of licenses (more than 2000 pieces) to build solar power plants under 500 kW performance. This is more than 1000 MW total power. This paper searches the answer how this solar power plants will influence the level of self-sufficiency of the Hungarian settlements in the electricity supply if those are realized. Hereinafter, we will analyze the possible impact of these solar power plants in the settlement electricity self-sufficiency.
