Abstract: In this paper, the numerical solutions of the Maung-Norbury-Kahana equation which has the complicated form of the eigenvalues are presented. Taken as examples, the bound states e +e −, µ +µ − and µ +e − are discussed by employing the Maung-Norbury-Kahana equa

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Abstract: Two-photon transitions from ground state to excited and ionized states are studied. The energy levels and radial matrix elements of an impenetrable spherically confined hydrogenic atom embedded in plasma environment are evaluated using accurate Bernstein-poly

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Abstract: Contact angle measurements were performed on Co60 gamma-ray irradiated poly(lactic acid) (PLA) samples at several doses, using the sessile drop method. It was found that irradiation alters the wettability of PLA. In particular, PLA wetting behavior changes fr

Resumen: Se realizaron mediciones de ángulos de contacto en muestras de ácido poli-láctico (PLA) irradiadas con rayos gamma Co60 a varias dosis, usando el método de gota sésil. Se encontró que la irradiación altera la humectabilidad del PLA. En particular, el comporta

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Abstract: We impose an upper bound to the amount of agents wealth in binary exchanges, but when the upper bound is continuously lowered, then the entropy S decreases because the system exhibits more order. Furthermore, negative temperatures can mathematically obtained

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Resumen: Se reporta un estudio experimental de la técnica de fabricación de acopladores bicónicos de fibra óptica y su aplicación al desarrollo de multiplexores por división de longitud de onda (WDM, wavelength division multiplexer). Los parámetros de fabricación requ

Abstract: An experimental study of the technique of fused biconical fiber couplers for the development of wavelength division multiplexers (WDM) is presented. The fabrication parameters required for the WDM are obtained from the theoretical analysis of the spectral res

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Abstract: In this work, the high order perturbation formulae of the electron paramagnetic resonance (EPR) parameters, g & A for a VO2+ 3d1 ion in tetragonal symmetry (compressed octahedron) are adopted to theoretically study these parameters of the tetragonal VO2+ cent

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Abstract: We intend to use the description of the electron orbital trajectory in the de Broglie-Bohm (dBB) theory to assimilate to a geodesic corresponding to the General Relativity (GR) and get from it physical conclusions. The dBB approach indicates us the existence

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Abstract: Cadmium telluride (CdTe) nanoparticles were grown in the interior of a SnO2 transparent matrix by means of the r.f. sputtering technique. X-ray diffraction (XRD) patterns reveal that the CdTe quantum dots (QD) grow in the hexagonal wurtzite (W) phase. Diffrac

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

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Abstract: The authors successfully synthesized aluminum nitride (AlN) nanowires by chemical vapor deposition (CVD) using aluminum (Al) powder and ammonia (NH3) as starting materials with nickel (Ni) as catalyst. The morphologies, the composition and structure informati

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Abstract: We discuss some interesting aspects of the well known quantum equivalence between the O(3) − σ and CP1 models in 3D, working in the canonical and in the path integral formulations. We show first that the canonical quantization in the hamiltonian formulation i

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Abstract: There are two main physical properties needed to fabricate 1D photonic structures and form perfect photonic bandgaps: the quality of the thickness periodicity and the refractive index of their components. Porous silicon (PS) is a nano-structured material wide

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Abstract: We provide a statistical mechanics approach to study the linear microrheology of thermally equilibrated and homogeneous ferrofluids. The expressions for the elastic and loss moduli depend on the bulk microstructure of the magnetic fluid determined by the stru

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Abstract: We report results of the first principles calculations of structural, electronic and optical properties of SrF2 under pressure, performed using full-potential linearized augmented plane wave (FP-LAPW) method based on density functional theory as implemented o

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