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Study of properties enhancement of magnesium diboride (MgB2) by TaB2 doping via high energy ball milling
(2008)
The study of superconductivity properties enhancement on MgB2 due to TaB2 doping at 2 and 5 at.% levels were carried out, in addition to the effect of atmospheric exposure on MgB2. High energy ball milling was used for the ...
Branching ratio measurement of Xc -> VV
(2006)
We report recent results on a search for exclusive hadronic decays of charmonium states (χcJ ) decaying into vector-vector meson (χc → V V ), using a sample of 3 million ψ(2S) recorded with the CLEO detector. We present ...
Análisis fotométrico del cúmulo abierto ngc 6611
(2006)
Se diseñaron programas en Matlab, que aplican el método de fotometría de apertura diferencial, a dos imágenes tomadas con un dispositivo de carga acoplada (CCD) en los filtros visible V y azul B, para calcular los parámetros ...
Synthesis of CuAlO2 thin films by pulsed laser deposition
(2009)
This work presents a procedure that has never been published before for producing transparent CuAlO2 thin films. Pulsed laser deposition was used to fabricate films composed of a mixture of Cu2O and Al2O3 in a proportion ...
Simulación por computadora del crecimiento de tumores cancerosos tratados con inmunoterapia
(2005)
Cancer is one of the leading causes of death. One of the great challenges of modern science is to understand the dynamics of cancer tumor growth. In this thesis we study cancer tumor growth with the nutrient competition ...
Estudio de las propiedades térmicas de algunos vidrios y policristales de la forma A2BX4
(2005)
The properties of specific heat, thermal conductivity, and heat flow were studied in polycrystalline materials of the form A2BX4, like: Cs2CoCl4, Cs2ZnI4, [N(CH3)4]2CoCl4 and (NH4)2CrO4 elaborated by the methods of quick ...
Deposición y caracterización de películas delgadas de KTa1-x NbxO3 (ktn) dopadas con litio
(2006)
In this research work suitable conditions were found for deposition of epitaxial thin films of potasium niobate-tantalate (KTN) and lithium-doped potassium-niobate tantalate (KLTN) using the Pulsed Laser Deposition (PLD) ...
Estudio comparativo entre películas delgadas de CuAlO2 con dopajes de Mn y Fe
(2009)
The purpose of this work is to evaluate the structure, and optical, electrical and magnetic properties of thin films of CuAlO2 and CuAlO2 doped with Mn and Fe grown sapphire substrate with (0001) orientation. For this work ...
Alineamiento de pasos ópticos extensos, basados en una rejilla de diffraction de fase desenfocadora
(2004)
In a long baseline stellar interferometer, the optical beams are guided over several hundred meters by steering mirrors and generally propagated under vacuum. There is an urgent requirement to provide a simple mechanism ...
Síntesis y caracterización de materiales en el sistema Ca1-xRxCu3Ti4O12 (R = Mg, Sr, Zn)
(2004)
Due to the high dielectric constant of CaCu3Ti4O12, there is interest in related material systems for high dielectric applications. Accordingly, becomes interesting to study the effect of some divalent cations replacing ...