Iuliia Radchenko

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The pure Ca<sub>3</sub>Y<sub>2</sub>(BO<sub>3</sub>)<sub>4</sub> single crystals were grown by the Czochralski method using an inert and oxygen containing atmospheres and characterized by means of powder X-ray diffraction, optical spectroscopy. The microhardness H<sub>v</sub> and fracture toughness K<sub>1c</sub> of single crystals were studied too. The(More)
Glaciers and snowmelt supply the Naryn and Karadarya rivers, and about 70% of the water available for the irrigated agriculture in the Ferghana Valley. Nineteen smaller catchments contribute the remaining water mainly from annual precipitation. The latter will gain importance if glaciers retreat as predicted. Hydrological models can visualize such climate(More)
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