Abstract: We determined the thermal effusivity of liquids using an optical sensor based on the laser beam deflection technique, without directly irradiate the samples for heating and thus minimally altering them. Applying a heat pulse in a thermo-optical slab we genera

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Abstract: We designed and implemented an electronic oscillatory system consisting of two mutually coupled oscillators (each one based on the 555- timer IC working in astable mode), and investigated its synchronization dynamics. For that purpose, we characterized the ph

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Abstract: In this work, the preliminary design of an electron Linear Particle Accelerator (eLINAC) capable of delivering a beam with an energy range of 5 to 100 MeV using the S-band acceleration frequency is presented. At its peak energy, it can be used as an injector

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Resumen: Se llevó a cabo la caracterización microestructural de la aleación Co-20 % en peso de Cr solidificada en un molde metálico de cobre con una velocidad de enfriamiento de 450 K/s, la cual fue seleccionada de un grupo de aleaciones de Co-20 a 44 % en peso de Cr,

Abstract: It was performed a microstructural characterization of a Co-20 wt. % Cr alloy solidified in a copper metal mold with a cooling rate of 450 K/s, which was selected from a group of Co-20 to 44 wt. % Cr alloys, systematically solidified at different cooling rate

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Abstract: We present a preliminary study on the effects of nano-size α-Al2O3 (40 nm) in the transport properties of Bi1.65Pb0.35Sr2Ca2Cu3Oy ((Bi,Pb)-2223) ceramic samples. The (Bi,Pb)-2223 samples were synthesized by the solid state reaction method and α-Al2O3 nanopart

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Abstract: We study the generation of an electromagnetic current in monolayer graphene immersed in a weak perpendicular magnetic field and radiated with linearly polarized monochromatic light. Such a current emits Bremsstrahlung radiation with the same amplitude above a

Resumen: Estudiamos la generación de una corriente electromagnética en una monocapa de grafeno inmersa en un campo magnético débil perpendicular y radiada con luz monocromática. Esta corriente emite radiación de Bremsstrahlung con la misma amplitud por arriba y abajo

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Abstract: In this work, we present and discuss results concerning the hard magnetic behavior of rare earth-free MnBi alloys obtained by suction casting technique. The physics of coercivity for these type of alloys is based on the nucleation process of reverse domains,

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Abstract: The double perovskite compound Sr2FeMoO6 has a half-metallic ferromagnetic character and a high Curie temperature (420 K). Fe-Mo usually present some degree of disorder in either Fe or Mo ions, it is therefore fundamental to understand the role of electronic

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Abstract: The application for the integrals of the motion of a quantum system in deriving Green function or propagator is presented. The Green function is shown to be the eigenfunction of the integrals of the motion which described initial points of the system trajecto

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Abstract: A covariant generalization of a non-relativistic stochastic quantum mechanics introduced by de la Pena and Cetto is formulated. The analysis ˜ is done in space-time and avoids the use of a non-covariant time evolution parameter in order to search for Lorentz

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Abstract: The fractional conformable derivative and its properties have been introduced recently. Using this derivative we obtain a new class of smooth solutions for the Newton’s law of cooling in terms of a stretched exponential function depending on the fractional or

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Abstract: We discuss the geometric characterization of the trajectory of a moving charged particle, for the case of a homogeneous electromagnetic field, in De-Sitter space when the motion is governed by the Lorentz equation. We employ totally relativistic approach duri

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Abstract: We aim to derive the most general f(R) gravity theory, including the matter, so that it be Weyl invariant. Making use of the mathematical equivalence of these theories with an type of scalar-tensor theory (which includes a scalar degree of freedom, φ) and by

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Abstract: The classical central field is analyzed within the Hammond theory of radiation reaction force. For the attractive Coulomb field, the trajectories deduced from Ford and Hammond equations are numerically obtained. Ford and Hammond equations are rewritten by usi

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Resumen: Las curvas porosimétrica y granulométrica del suelo son relacionadas bajo el supuesto de una relación de vacíos constante en las diferentes escalas y una relación entre los tamaños de poro y partícula en un empaquetamiento dado. En la relación entre los tamañ

Abstract: The particle and void sizes distributions of the soil are related with the assumption that a void constant relationship at all different scales and a relationship between pore and particle size of a given packing. In the relationship between pore and particle

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