منابع مشابه
Revealing Invisible Photonic Inscriptions: Images from Strain
Photonic structural materials have received intensive interest and have been strongly developed over the past few years for image displays, sensing, and anticounterfeit materials. Their "smartness" arises from their color responsivity to changes of environment, strain, or external fields. Here, we introduce a novel invisible photonic system that reveals encrypted images or characters by simply ...
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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau...
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The Electromagnetically Sustained Rhodes Piano is an augmentation of the original instrument with additional control over the amplitude envelope of individual notes. This includes slow attacks and infinite sustain while preserving the familiar spectral qualities of this classic electromechanical piano. These additional parameters are controlled with aftertouch on the existing keyboard, extendin...
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Ethical controversies regarding the control of science and technology, especially emerging biotechnologies, are among the most contentious of current issues under public debate. Cloning or somatic cell nuclear transfer (even the terminology is controversial) and stem cell research are hotbutton political issues, with presidential ethics advisors, presidents and exfi rst ladies weighing in, thre...
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Following the discovery of a series of geometric designs on the floor of the Biblioteca Laurenziana in Florence we analyse the “Medici panel”, which consists of a circular rosette containing a set of inscribed elliptical disks, with a view to regenerating the pattern. The geometry is shown to be surprisingly complex. We were able to determine a numerical solution for synthesising the pattern. A...
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ژورنال
عنوان ژورنال: The Journal of Hellenic Studies
سال: 1883
ISSN: 0075-4269,2041-4099
DOI: 10.2307/623363