75 research outputs found

    Az innováció fogalmának történeti áttekintése = Historical overview of the concept of innovation

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    Az innováció mindennapi része életünknek, még ha többségünk nem is veszi ezt sokszor észre. Egy biztos: az idők kezdete óta folyamatosan jelen van az emberiség történelmében. Ennek következtében számos tudóst késztetett arra, hogy külön vizsgálat alá vonja az emberi, technikai újítás, megújulás képességét, lehetőségeit. A dolgozat az innovációnak, mint társadalmi-közgazdasági-technikai fogalomnak a történeti áttekintését igyekszik bemutatni, az egyes tudosók vélekedése által

    The innovative EU – the future of Europe

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    In this study, I am going to compare the current innovation performance of the European Union with that of its competitors and give guidance on how to promote the flow of knowledge in Europ e thereby enhancing the efficiency of the R&D sector. These processes might be solutions to recover from the economic crisis and make progress in the 21st century

    The Hungarian Innovational Potential and the R&D Sector

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    Usually, when one says „innovation”, novelty and the ability to renew come to mind. The measurement of the concept has become a very important field of study and a key indicator of national economies. In this article, after a short review of the theoretical approaches to innovation, I am going to examine the status of the Hungarian R&D sector. Where is Hungary now in terms of innovational activities? Who are the actors and the funders of the system, and more importantly: in what proportion? What fields are prominent in domestic practice? Amongst others, I set out to find the answers to these questions in this article. Keywords: innovation, R&D, innovational performance, financing JEL Codes: I23, O31, Q5

    Analysis of Vibration During Turning Process of Different Materials

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    In this article, we would like to introduce the problems caused by vibrations in case of polymer turning processes. Nowadays there is a lot of research in this topic, to avoid the unnecessary phenomena of vibrations. The two most common methods are the Spindle Speed Variation (SSV), and the Vibration Assisted Machining (VAM). In case of SSV, the CNC machine can increase and decrease the speed of spindle continuously during turning which can significantly reduce the effects of chatter. This method is beneficial for longer workpieces when there is not any support except the chuck. Vibration-assisted machining can be used to minimise the problems caused by vibrations. VAM combines precision machining with small-amplitude tool vibration to improve the fabrication process. It has been applied to some processes ranging from turning, drilling to grinding. Based on the enumerated above we made some trial measurements about the basic vibrations of the turning tool shank. The tests were done on an NCT EUROturn-12B CNC machine which can found in the workshop of our institute. The tested material was Polyamide 6 because this is the most commonly used polymer in the industry. In the future, we would like to test some other basic and composite polymer materials too. The equipment was served by a specialist from SPM Budapest Kft. With these tests, our goal was to make sure that the equipment and the measuring setup are suitable for our future research

    Tavaszi Szél, 2015

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    Tavaszi Szél, 2015

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