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Yudintsev S. V. Nickolsky M. S. Stefanovskaya O. I. Nikonov B. S. Ulanova A. S. 《Doklady Earth Sciences》2022,507(2):1148-1153
Doklady Earth Sciences - The possibilities of scanning electron microscopy and electron backscatter diffraction (EBSD) in the study of matrices for immobilization of high-level radioactive wastes... 相似文献
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Summary. Seismic investigations using shear-wave and converted wave techniques show that very often reflected PS - and SS -waves have anomalous polarizations ( accessory components ). This phenomenon cannot be explained in terms of isotropic models with dipping boundaries. Computations of synthetic seismograms of reflected PS - and SS -waves were made for different models of transversely isotropic media with dipping anisotropic symmetry axes not normal to the boundaries. Synthetic seismograms were computed by ray techniques using an optimization algorithm to construct all rays arriving at a given receiver. These computations indicate that accessory components arise when the medium above the boundary is anisotropic, where they are caused by the constructive interference of qSV - and qSH -waves. If a low-velocity layer is present, displacement vectors of both waves have horizontal projections which are approximately orthogonal. The algorithm for wave separation is presented and some results of its use are given. 相似文献
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Yudintsev S. V. Nickolsky M. S. Stefanovsky O. I. Nikonov B. S. 《Doklady Earth Sciences》2022,504(2):403-409
Doklady Earth Sciences - Light rare earth (REE) titanates, such as REE2TiO5, REE2Ti2O7, and REE4Ti9O24, are potential matrices for the REE-actinide fraction of high-level waste from the... 相似文献
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Doklady Earth Sciences - Matrices with simulators of actinides (Sm, Nd) and technetium (Re) are produced by self-propagating high-temperature synthesis (SHS). The samples are composed of rare-earth... 相似文献
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