989 resultados para Ab
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Sign.: a-d8, e6, f8, g6, h-r8, s6, t8, v6, x8, y6, z8, [et]10, []5; A-N8, O5, []5; 2A8, 2B6, 2C8, 2D6, 2E8, 2F6, 2G-2H8, 2J10, 2K-2L6, 2M8
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Marca tip. en port. (Zappella, 226)
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Marca tip. en M4v
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Lugares e imp. tomados de Short-title catalogue of books printed in the German-speaking countries and German Books printed in other countries from 1455 to 1600 now in the British Museum
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Marca tip. en port. (Zappella, 226)
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Marca tip. en M4v
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Lugares e imp. tomados de Short-title catalogue of books printed in the German-speaking countries and German Books printed in other countries from 1455 to 1600 now in the British Museum
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Nouament imprimida en lany M.D.xlvij.
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Imp. y fecha tomados del colofón
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Sign.: [alfa]-[beta]6, [gamma]8, a-z6, A-Z6, 2A-2Z6, 2A-2I6
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Hojas imp. por ambas caras
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Hydrogen isotopes play a critical role both in inertial and magnetic confinemen Nuclear Fusion. Since the preferent fuel needed for this technology is a mixture of deuterium and tritium. The study of these isotopes particularly at very low temperatures carries a technological interest in other applications. The present line promotes a deep study on the structural configuration that hydrogen and deuterium adopt at cryogenic temperatures and at high pressures. Typical conditions occurring in present Inertial Fusion target designs. Our approach is aims to determine the crystal structure characteristics, phase transitions and other parameters strongly correlated to variations of temperature and pressure.
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Tenemos una Metodología Multiescala por medio de la cual es posible estudiar las propiedades mecanicas de los isótopos de Hidrógeno. Observamos transiciones de Fase acorde con las reportadas por estudios experimentales. Existen discontinuidades en la variación de la velocidad del sonido que deben ser mejor estudiadas. Proponemos nuevas estructuras cristalinas para el Hidrógeno en Altas Presiones P mayor que 200 Gpa.
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Hydrogen isotopes play a critical role both in inertial and magnetic confinement Nuclear Fusion. Since the preferent fuel needed for this technology is a mixture of deuterium and tritium. The study of these isotopes particularly at very low temperatures carries a technological interest in other applications. The present line promotes a deep study on the structural configuration that hydrogen and deuterium adopt at cryogenic temperatures and at high pressures. Typical conditions occurring in present Inertial Fusion target designs. Our approach is aims to determine the crystal structure characteristics, phase transitions and other parameters strongly correlated to variations of temperature and pressure. With this results is possible calculated the elastic constant and sound velocity for hydrogen and deuterium in molecular solid phase.
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We have determined matrix elements for all experimental configurations of Ca III, including the 3s3p63d configuration. These values have been obtained using intermediate coupling (IC). For these IC calculations, we have used the standard method of least-squares fitting from the experimental energy levels, using the computer code developed by Robert Cowan. In this paper, using these matrix elements, we report the calculated values of the Ca III Stark widths and shifts for 148 spectral lines, of 56 Ca III spectral line transition probabilities and of eight radiative lifetimes of Ca III levels. The Stark widths and shifts, calculated using the Griem semi-empirical approach, correspond to the spectral lines of Ca III and are presented for an electron density of 1017 cm?3 and temperatures T = 1.0?10.0 (×104 K). The theoretical trends of the Stark broadening parameter versus the temperature are presented for transitions that are of astrophysical interest. There is good agreement between our calculations, for transition probabilities and radiative lifetimes, and the experimental values presented in the literature. We have not been able to find any values for the Stark parameters in the references.