474 research outputs found

    Design and implementation of a radio controlled led lighting system

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    Technological advances allow us to control LED (Light Emitting Diode) lighting at home, in the office it can even allow us to change the intensity of the light and this is just the beginning of what the future holds for us. In this study an LED internal lighting fixture of our own design will be presented focusing on each step in its design. Firstly, the features, types and history of LEDs will be presented, next the products available in market that are required for the completion of the device. Finally, the design and implementation as well as the radio frequency controlled LED indoor lighting fixture will be shown

    Design and Implementation of a radio controlled led lighting system

    Get PDF
    Technological advances allow us to control LED (Light Emitting Diode) lighting at home, in the office it can even allow us to change the intensity of the light and this is just the beginning of what the future holds for us. In this study an LED internal lighting fixture of our own design will be presented focusing on each step in its design. Firstly, the features, types and history of LEDs will be presented, next the products available in market that are required for the completion of the device. Finally, the design and implementation as well as the radio frequency controlled LED indoor lighting fixture will be shown

    Moments of the superdiffusive elephant random walk with general step distribution

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    We consider the elephant random walk with general step distribution. We calculate the first four moments of the limiting distribution of the position rescaled by nαn^\alpha in the superdiffusive regime where α\alpha is the memory parameter. This extends the results obtained by Bercu.Comment: 11 page

    Többtengelyű kovácsolás virtuális és fizikai szimulációinak összehasonlítása: Comparison of virtual and physical simulation of multi-axial forging processes

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    On a Gleeble 3800 thermophysical simulator, multi-axial forging of high-purity copper workpieces was performed. The strain rate during the simulation process was 0.1 s-1. The applied force of the MaxStrain unit and the geometric changes of the workpiece as a function of time were continuously recorded. For a deeper understanding of the multi-axial forging process, a finite element model was created in Qform3D. The force-displacement curves of the physical and finite element simulation were compared. Kivonat Gleeble 3800 típusú termofizikai szimulátoron nagy tisztaságú réz próbatestek multi-axiális kovácsolását végeztük 0.1 s-1 alakváltozási sebességgel. A MaxStrain egységen folytatott méréseknél folyamatosan regisztráltuk az alakító erőt és a próbatest geometriai változásait az idő függvényében. A többtengelyű kovácsolási folyamat törvényszerűségeinek megismerése érdekében végeselemes modellt készítettünk Qform3D program segítségével. A QForm3D szoftverben készített végeselemes szimuláció erő-elmozdulás görbéit hasonlítottuk össze a fizikai szimuláció során rögzített adatokkal. &nbsp

    Társadalmi rétegződés és jövedelmek

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    Monocular Vision-based Aircraft Ground Obstacle Classification

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