Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Florentino Sánchez-Bajo"'
Autor:
Pedro Rivero-Antúnez, Camilo Zamora-Ledezma, Florentino Sánchez-Bajo, Juan Carlos Moreno-López, Eric Anglaret, Víctor Morales-Flórez
Publikováno v:
Journal of the European Ceramic Society. 43:1064-1077
Autor:
Florentino Sánchez-Bajo, Rafael Cano-Crespo, Víctor Morales-Flórez, Arturo Domínguez-Rodríguez, Pedro Rivero-Antúnez
Publikováno v:
Journal of the European Ceramic Society. 41:5548-5557
This work presents a fast and direct controlled routine for the fabrication of fully dense alumina based on the reactive spark plasma sintering (reactive-SPS) of boehmite ( γ -AlOOH) nano-powders obtained by the sol-gel technique. The evolution of t
Publikováno v:
Ceramics International. 44:22365-22369
Analytical expressions are formulated that enable the lognormal distribution of nanocrystallite sizes and the mean-squared crystal lattice microstrain in both doped and undoped nanocrystalline ceramics to be routinely determined by X-ray diffractomet
Autor:
J. M. Gómez, Rainer Arlt, Florentino Sánchez-Bajo, P. Galaviz, María Cruz Gallego, Víctor M. S. Carrasco, Andrés Muñoz-Jaramillo, V. Senthamizh Pavai, J. Villalba Álvarez, José M. Vaquero, G. de Toma
An analysis of the sunspot observations made by Hevelius during 1642-1645 is presented. These records are the only systematic sunspot observations just before the Maunder Minimum. We have studied different phenomena meticulously recorded by Hevelius
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18de636341a06c5c67dae512bc0d584c
Autor:
Víctor M. S. Carrasco, Florentino Sánchez-Bajo, P. Galaviz, María Cruz Gallego, José M. Vaquero
A new software (Soonspot) for the determination of the heliographic coordinates and areas of sunspots from solar images is presented. This program is very user-friendly and the accuracy of its results has been checked by using solar images provided b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f2970651c27dd05b9f59374b1eeebd8
Publikováno v:
Journal of the European Ceramic Society. 37:3873-3884
The comminution of a typical submicrometre B4C powder with a high-energy mill (i.e., a shaker mill) operated in air in either a dry or a wet environment was investigated. It was found that dry shaker milling (i.e., high-energy ball-milling) is able t
Publikováno v:
Advances in Space Research. 58:2247-2254
In this paper we analyze a small collection of sunspot drawings made at the Astronomical Observatory of the Spanish Navy in the period from April 1, 1884 to August 18, 1884. We calculate the area and the heliographic coordinates of the observed sunsp
Publikováno v:
Materials Science in Semiconductor Processing. 49:15-19
Two tin dioxide samples undergone to different thermal treatments have been studied by X-ray diffraction profile analysis, using the modified Williamson-Hall and Warren-Averbach methods. Assuming {101} slip system and screw dislocations, the area and
Publikováno v:
Ceramics International. 40:16829-16834
A wide set of 3 mol% Y2O3-stabilized ZrO2 (3YSZ) powders have been synthesized by the sol–gel method without modifiers from solutions of zirconium n-propoxide and yttrium acetate prepared with different water/Zr molar ratio and zirconium concentrat
Publikováno v:
European Journal of Physics. 34:527-536
Solar rotation rates can be measured from changes in sunspot positions. In this paper, we propose using digital camera images taken with small telescopes to determine the solar rotation rate at different heliographic latitudes. This low-cost practica