41 research outputs found

    Sociocultural rationale for the innovative university: problems and contradictions

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    В статье рассматривается эволюция образовательных парадигм социального института «Университет» в классическом его проявлении и предпосылки разработки концепции неклассического университета нового типа. Описывается деятельность по реализации миссии и функций проекта «Университет 3.0» в некоторых учреждениях высшего образования Республики Беларусь. Авторы выделяют возникающие противоречия в отношении цели и задач проекта «Университет 3.0» и ценностного приоритета миссии университета как социального института. The paper examines the evolution of educational paradigms of the social institution «University» in its classical manifestation and the prerequisites for developing the concept of a non-classical university of a new type. The activities to implement the mission and functions of the «University 3.0» project in some institutions of higher education in the Republic of Belarus are described. The authors highlight the emerging contradictions in relation to the goal and objectives of the «University 3.0» project and the value priorities of the university's mission as a social institution

    A Highly Efficient, Angle-Insensitive Solar Quantum Concentrator Based on Microstructured Plastic Optical Fiber

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    International audienceA new device made of very specific microstructured fluorescent plastic optical fibers, capable of concentrating solar radiation towards photovoltaic solar cells is studied in the QUYOS project. This device transforms a multidirectionnal and polychromatic flux of solar light to a monochromatic and monodirectionnal intense flux of light with a high conversion efficiency. The very specific behaviour of these fibers is due to the convergence of several quantum phenomena. Mainly the coincidence of the fluorescent band of the dye with the forbidden band of the photonic crystal from the microstructured fiber restricts the phase space of desexcitation only along the axis of the fiber. Moreover, a coupling of the fluorescence with the allowed modes of the central waveguide of the fiber does enhance the radiative desexcitation thanks to the Purcell effect

    Trimethyl Bismuth Optical Properties for Particle Detection and the CaLIPSO Detector

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    International audienceTrimethyl bismuth (TMBi) is a "heavy" transparent and dielectric organometallic liquid. This paper focuses on the measurement of TMBi's optical properties relevant for particle detection. We measured the TMBi transmission curve and refraction index versus wavelength, as well as the light production yield and the timing performance on a small size cell

    Fabrication of ultra-low radioactivity detector holders for Edelweiss-II

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    International audienceIn its first stage, the EDELWEISS-II dark matter experiment will use 21×320 g ionization-heat bolometers with NTD thermal sensors. To improve the present sensitivity of EDELWEISS to WIMP interactions by a further factor 100, ultra-low radioactivity detector holders exclusively made of copper and Teflon have been designed. The new design is using the relative expansion coefficients of copper, Teflon and germanium to hopefully ensure a dissipation-free detector holding. In order to validate this new holder, we need to compare the vibration behavior of the old holder and the new one. The amplitude of the bolometer vibrations is measured using the variation of capacitance between electrodes sputtered on the Ge crystal and reference electrodes fixed above the detector holders. We present noise measurements and compare them to the equivalent measurements using the detector holders of the Edelweiss-I experiment, which gave very satisfying results
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