1,270 research outputs found

    Design and construction of a novel tribometer with on-line topography and wear measurement

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    We present a novel experimental platform that links topographical and material changes with the friction and wear behavior of oil-lubricated metal surfaces. This concept combines state-of-the-art methods for the analysis of the surface topography on the micro- and nano-scale with the online measurement of wear. At the same time, it allows for frictional and lateral force detection. Information on the topography of one of the two surfaces is gathered in-situ with a 3D holography microscope at a maximum frequency of 15 fps and higher resolution images are provided at defined time intervals by an atomic force microscope (AFM). The wear measurement is conducted on-line by means of radio nuclide technique (RNT). The quantitative measurement of the lateral and frictional forces is conducted with a custom-built 3D force sensor. The surfaces can be lubricated with an optically transparent oil or water. The stability and precision of the setup have been tested in a model experiment. The results show that the exact same position can be relocated and examined after each load cycle. Wear and topography measurements were performed with a radioactive labeled iron pin sliding against an iron plate

    Adoption of Technology and Regional Convergence in Europe

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    This paper examines the pattern of convergence in labour productivity across regions due to their ability to adopt technology. Whether regions exhibit a pattern of convergence depends on the degree to which infrastructure conditions are appropriate for the adoption of technological improvements. The ability of a region to adopt or create technology is reflected in the percentage of its labour force employed in technologically dynamic sectors or, more generally, in the resources devoted to science and technology. A high percentage of labour employed in technologically advanced sectors leads a region to a pattern of convergence. This hypothesis is tested using data for the NUTS-2 regions of the EU-27 during the time period 1995-2006. The results suggest that adoption of technology has a significant and positive effect on regional convergence in Europe. The analysis is also shown to have important implications for the direction of regional policy in Europe. To be more specific, regional policies, in order to enhance regional growth and convergence, should encourage employment in advanced technological sectors

    European Integration and the Future of Social Policy Making

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    The basic aim of this paper is a brief presentation of the current situation as regards some central aspects of social policy formation and implementation in the European Union. The general rationale of the paper is the viewing of the European Union as one of the major global actors towards neoliberal globalization, resulting by the contemporary ideological and political dominance of certain social forces within it. The drive towards greater socio-economic liberalization, the emphasis on international competitiveness and the gradual commodification of previously considered public goods pose a remarkable threat to the European social model (or social models). The paper starts with a synoptic account of some crucial aspects of the contemporary social situation in the European Union (notably income distribution, unemployment, poverty and social exclusion) and of the most important social policy frameworks at European level. Subsequently the future prospects of the European social policy regime under the dominance of neoliberalism is discussed, opening new questions about the ways of reversing contemporary trends.

    Technical Change, Productivity and Economic Growth

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    This paper investigates the relationship between productivity and technological change. The question that we shall address in this paper, is whether the recent slow down in productivity can be explained by the slow-down of innovation activities. This paper measures technical change through the application of a production function, and the Malqiust index in order to measure the effects of economic growth for European member states. It introduces the reader, first, to some basic elements and concepts that are central to understanding the approach. The characteristics of the innovation process are examined: its nature, sources and some of the factors shaping its development. Particular emphasis is laid on the role of technical change and dissemination based on the fundamental distinction between codified and tacit forms. These concepts recur throughout the paper and particularly in discussions on the nature and specifications of the systems approach. The paper concludes by summarizing some of the major findings of the discussion and pointing to some directions for future research activities.

    TOWARDS A LIFE LONG LEARNING AND A KNOWLEDGE SOCIETY

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    The program Learning for Community Action in the Sector of for Life Learningwas for life enacted with the Decision of European Parliament and Council with fundamentalobjective to contribute in the growth of Community as a advanced society of knowledge, withsustainable economic growth, more and better places of work and bigger social cohesion,ensuring also the social and economic growth and the protection of environment for thefuture generations. More special objectives are the modernisation and the adaptation ofsystems of education and training of member states particularly in the line of strategicobjectives of Lisbon. The particular article aims to analyze the subjects of education and lifelong learning in E.U. in the context of knowledge and learning society.Life Long Learning, Education, Training, Knowledge, Socio-Economic Development.

    A note on poverty, inequality and growth

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    How inequality is generated and how it reproduces over time? This has been a major concern of social scientists for more than a century. The changes in aggregate or average income is a good measure for economic growth but is far from being the only one. There is an increasing “inequality” throughout the world. Over the period 1960-2000, the richest 5 % of the world’s nations averaged a per-capita income that was about twenty-nine times the corresponding figure for the poorest 5 %. Poverty also affects other forms of economic and social functioning. The measurement of poverty is based on the notion of poverty line, which is constructed from monetary estimates of minimum needs. Poverty is highly correlated with the lack of education, and there is an intimate connection between nutrition and poverty. The measurement of inequality is a highly controversial one. It is a field in which there are large differences in social judgments, which translate themselves into differences in social judgments, such as the measure of inequality or the choice of equivalence scale. Social and Economic indicators demonstrate the data for the population based measures on economic, social and health outcomes and answer the question about inequality and well being. This article attempts to examine the relationship between inequality and the process of socio-economic development and also to overview the theories of income inequality and to measure the income distribution and moreover to investigate the role and the effects on socio-economic growth. Keywords: Income distribution, inequality, poverty, convergence, growth.

    Enterpreneurship and innovation activites in the schumpeterian lines

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    The importance of diffusion of technology for economic growth has been emphasised by economic literature. Much of the recent work on economic growth can be viewed as refining the basic economic insights of classical economists. The recent debate on the determinants of output growth has concentrated mainly on the role of knowledge, typically produced by a specific sector of the economy, and furthermore in the role of entrepreneurship and the implications on economic growth. This paper attempts to examine the role of entrepreneurship, and those of innovation activities (technical change, research and development and diffusion of technology) and the effects of output growth, according to the Schumpeterian lines. Following on the Schumpeterian tradition, this paper starts from the recognition that there are two main patterns of innovations: the first one is the creative destruction pattern and the second one is a creative accumulation pattern. Also, it emphasizes the role of entrepreneurship and the impact of the diffusion of technology in the inter-country and international economic contexts using some of the empirical implementation of epidemic, probit analysis and moreover from technological substitution models. Key Words: Entrepreneurship, Innovation Activities, Diffusion, Modernization, Competitiveness, Schumperer.

    An Empirical Investigation of Female Entrepreneurship & Innovation Activities in Greece

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    The importance of entrepreneurship for economic growth has been emphasised by economic literature. The recent debate on the determinants of output growth has concentrated mainly on the role of knowledge, typically produced by a specific sector of the economy, and furthermore in the role of entrepreneurship and the implications on economic growth. Much of the recent work on economic growth can be viewed as refining the basic economic insights of classical economists. The statistical analysis is therefore very important. Nowadays there are well-organized databases, and the researcher can easily decide about the sample, rather than some years ago. Research and Development, technical change and entrepreneurship are directly related with industrial infrastructure, productivity effects and regional development. Entrepreneurship aims to reinforce the competitiveness, and to succeed the modernisation process and the convergence between firms and industries in the member states, adopting statistical techniques, using the appropriate software. This paper attempts to examine the role of entrepreneurship, and those of innovation activities (technical change, research and development and diffusion of technology) and the effects of output growth, using both a theoretical and empirical approach in a Greek case study. In particular, the purpose of this paper is to analyse the framework, the obstacles, the determinant factors using the appropriate statistical techniques and furthermore the role of female entrepreneurship in the Greek firms. It also attempts to examine the role of female entrepreneurship on innovation activities and the effects on sustainable development and in the implications on growth, economic integration, regional development and social change.

    Modeling the Technological Change and Innovation Activities for Estimation of Productivity Growth

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    Technological change and innovation activities contribute essentially to the regional dimension and productivity growth. The technological infrastructure and innovation capabilities affect not only the regional growth, but also the whole periphery and economy as well. In the last decades, OECD /introduced some measures and indexes, concerning the Research and Development Expenditures, patents etc., that measuring the innovation activities. However, there are a lot of problems and questions regarding the measurement of innovation activities at a regional level. This paper attempts to analyze the whole framework of innovation and technological activities and in particular to examine the methodological approaches, the appropriate measurement and also the statistical indices for estimation of productivity growth. On this context, it’s also aiming to emphasize and to review the appropriate techniques, the most common methods and to analyze the particular methodological and statistical problems.
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