The analysis and evaluation of the relation between road transportation and climate change

The target of this article is to analyse and evaluate the relation between road transportation and climate change, through the long time series of average CO2 concentration in the atmosphere and global average temperature of Earth. This article is built on data from the age % of which has information before the human impact on Earth. It can be clearly seen from the research that the human impact on air quality has different tendency than it had before. The trend of time-series was nearly independent from time: it was constant. It can be identified from the data that the increase of temperature was usually faster than the decrease in decreasing periods. There is a strong correlation between the average CO2 concentration in air and the average temperature of the Earth. The CO2 emitted into the environment increases the global temperature of the Earth. A huge part of the CO2 emitted by mankind into the atmosphere comes from transportation, mainly from the sector of road transportation

Twin-Photon Confocal Microscopy

A recently introduced two-channel confocal microscope with correlated detection promises up to 50% improvement in transverse spatial resolution [Simon, Sergienko, Optics Express {\bf 18}, 9765 (2010)] via the use of photon correlations. Here we achieve similar results in a different manner, introducing a triple-confocal correlated microscope which exploits the correlations present in optical parametric amplifiers. It is based on tight focusing of pump radiation onto a thin sample positioned in front of a nonlinear crystal, followed by coincidence detection of signal and idler photons, each focused onto a pinhole. This approach offers further resolution enhancement in confocal microscopy

Environmental impact of biofuel blends - theoretical estimation

It is a well known fact that climate change is one of the most urging problems nowadays. There is evidence that most of the observed global warming is attributable to human activities. Among the many human activities transportation plays a considerable role in contributing to CO2 emissions. In the future transportation is projected to grow further on and since other energy consuming sectors are unable to compensate for transportation related emissions, therefore the transportation sector has to contribute to emissions abatement. Using environment friendly energy resources is the only way to reduce environmental load without restricting mobility. One way to decrease CO2 emissions of the transportation sector is the application of biofuels. The aim of this paper is the theoretical estimation of the environmental impact of ethanol─gasoline and diesel oil─ethanol─biodiesel blends respectively

Estimation method for emission of road transport

The sustainable development is a development, where the pace of technical development, the satiation of increasing supply and the raw materials and resources of Earth are poised so that the rate of living and opportunities of the next generations must not to be worse. Transportation cannot be replaced because it is part of the production chain. Societies are horizontally and vertically differential. The manpower, the stock, the semi finished and finished products must be transported. One of the most emphasized goals of the transport policy of the European Union is sustainable mobility. For this reason transportation systems must be developed and standardized, the effectiveness of transportation service must be increased, while the environmental pollution must be decreased or prevented. There are no harmonized guidelines for project assessment and transport costing at EU level yet. A critical issue when comparing appraisal practices across countries is to make sure the same definitions are being used. Theoretically, all benefits and costs should be accounted for in the cost-benefit analysis. In practice though, many effects are left out

Innovation across the food chain – the Hungarian case

The small and medium sized enterprises (SMEs) in the Hungarian agri-food sector play determining role. The innovation capacity (efforts, activities and results) however of the individual SMEs is very limited. Food production (including SMEs) has to fulfil food safety requirements in a rapidly increasing extent, which implies a continuous innovation and development process from all market players. In Hungary the agri-food chain had to face a suddenly increased competition especially after the EU enlargement. Based on survey data this paper examines the efforts, activities and results in knowledge acquisition, utilisation, coordination and transfer in the Central Hungarian food SMEs. We have found (using ordered logistic regression) that R&D expenditures, achieved innovations, export/import orientation as well as the networking activity of the SMEs play significant role in market development

Intra-industry agri-food trade of the Baltic Countries

The article analyses patterns and country-specific determinants of the Baltic Countries agri-food trade with the European Union. Literature focusing on the country-specific determinants of vertical and horizontal intra-industry trade is rather limited and those analysing agricultural (or agri-food) trade are extremely rare. Therefore, the paper seeks to contribute to the literature by covering latest theory and data available on the topic to provide up to date results and suggestions. Moreover, it seeks to identify the determinants of horizontal and vertical intra-industry trade of the Baltic Countries after EU accession. Results suggest that agri-food trade of these countries is mainly inter-industry in nature but intra-industry trade is dominated by vertical elements. Results verify that determinants of horizontal and vertical IIT differ and suggest that economic size is positively, while factor endowments and distance are negatively related to both sides of IIT. However, the relationship between IIT and FDI is ambiguous

Food SMEs’ innovation profile – the Hungarian case

The small and medium sized enterprises (SMEs) in the Hungarian agri-food sector play determining role. The innovation capacity (efforts, activities and results) however of the individual SMEs is very limited. Food production (including SMEs) has to fulfil food safety requirements in a rapidly increasing extent, which implies a continuous innovation and development process from all market players. In Hungary the agri-food sector had to face a suddenly increased competition especially after the EU enlargement. Based on survey data this paper examines the efforts, activities and results in knowledge acquisition, utilisation, coordination and transfer in the Central Hungarian food SMEs. We have found (using ordered logistic regression) that R&D expenditures, achieved innovations, export/import orientation as well as the networking activity of the SMEs play significant role in market development