Listar Departamento de Física por fecha de publicación
Mostrando ítems 41-60 de 70
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Synthetic strategies for the preparation of nanoporous carbons with improved electrical conductivity
(Universidad de Córdoba, UCOPress, 2020)This PhD thesis has been developed in the framework of an international co-supervision between University of Orléans (France) and University of Córdoba (Spain). According to the agreement regulating the joint supervision, ... -
Method of Moments Optimization of Distributed Raman Amplification in Fibers with Randomly Variying Birefringence
(MDPI, 2020)In this work, we develop a vectorial model, for optical communications, using distributed Raman amplification (DRA) applied to vectorial soliton pulses in monomode fiber optics. The main result, a dependent polarization ... -
Analysis of Alpha Activity Levels and Dependence on Meteorological Factors over a Complex Terrain in Northern Iberian Peninsula (2014–2018)
(MDPI, 2020)Alpha ambient concentrations in ground-level air were measured weekly in Bilbao (northern Spain) by collecting aerosols in filters between 2014 and 2018. Over this period, the alpha activity concentrations in the aerosol’s ... -
Atmospheric Pathways and Distance Range Analysis of Castanea Pollen Transport in Southern Spain
(MDPI, 2020)The sweet chestnut (Castanea sativa Mill.) is the only native species of this genus in Europe, where it faces various threats that are causing a severe decrease in populations, with the resulting loss of genetic diversity. ... -
Carbon Black as Conductive Additive and Structural Director of Porous Carbon Gels
(MDPI, 2020)This work investigates the impact of carbon black (CB) as a porogenic agent and conductive additive in the preparation of electrically conductive nanoporous carbon gels. For this, a series of materials were prepared by the ... -
Measuring the air fraction and the gas temperature in non-thermal argon plasma jets through the study of the air influence on the collisional broadening of some argon atomic emission lines
(IOP Publishing, 2020)Cold atmospheric argon plasma jets have shown to be very promising in medicine and they are being currently used for therapeutical uses such as the healing of wounds or the treatment of tumors. Because they run in the open ... -
Study of the plasma–liquid interaction for an argon nonthermal microwave plasma jet from the analysis of benzene degradation
(Wiley, 2020)The interaction of an argon microwave plasma jet with a benzene layer on water has been analyzed under different conditions (power, gas flow, plasma-sample distance, and treatment time) in this study. Main products formed ... -
Aplicación del aprendizaje cooperativo a través de Tumblr para la adquisición de competencias
(UCOPress, 2020)El potencial de las redes sociales ha supuesto la aparición de herramientas alternativas para la adquisición de competencias a través de dinámicas de trabajo en grupo e interacción social. El objetivo de este proyecto es ... -
Low Electron Temperature Plasma Diagnosis: Revisiting Langmuir Electrostatic Probes
(MDPI, 2021)This article describes a method of measurement of the current-to-probe voltage characteristic curve of a Langmuir electrostatic probe immersed in a plasma characterized by a low electron temperature that is only one order ... -
Caracterización de la curva de luz Termoluminiscente de materiales sintéticos basados en Litio para radiaciones ionizantes con energías inferiores a 10 MeV
(Universidad de Córdoba, UCOPress, 2021) -
Carbon Dioxide Decomposition by a Parallel-Plate Plasma Reactor: Experiments and 2-D Modelling
(MDPI, 2021)The applicability of high voltage electrical discharges for the decomposition of CO2 has been extensively demonstrated. In this study, a new AC parallel-plate plasma reactor is presented which was designed for this purpose. ... -
Confined orbitals in fullerenes and quantum dots calculated by analytic continuation method
(Springer, 2021)The Schrödinger equation with a Gaussian potential to model a confined system as a quantum dot or a hydrogen atom inside a fullerene is solved by using the analytic continuation method. The use of the Rodrigues formula ... -
Optimizing high-quality graphene nanoflakes production through organic (bio)-precursor plasma decomposition
(Elsevier, 2021)Atmospheric pressure plasma-based technique for the decomposition of biofuels allows obtaining high-quality graphene powder in one step, without the use of neither metal catalysts nor specific substrates. Despite the ... -
Experimental Study of a Rotating Electrode Plasma Reactor for Hydrogen Production from Liquid Petroleum Gas Conversion
(MDPI, 2022)In this work, a new plasma reactor operating with a butane/propane (C4H10/C3H8) gaseous mixture, designed for hydrogen molecule production, was experimentally studied. This reactor is based on a rotating electrode, biased ... -
16 Years (2006–2021) of Surface Ozone Measurements in Córdoba (Southern Spain): Trends and the Impact of the COVID-19 Lockdown
(MDPI, 2022)Surface ozone concentrations (O3) during the period 2006–2021 are analysed at Córdoba city (southern Iberian Peninsula) in suburban and urban sampling sites. The aims are to present the levels and temporal variations, to ... -
Effects of size on the spectrum and stability of a confined on-center Hydrogen atom
(IOP Publishing, 2022)In this work we studied the problem of the stability of confined atoms when they are released from confinement. We analyzed the confined Hydrogen atom inside a cage modelled by a square-well potential, in particular the ... -
An off-center endohedrally confined hydrogen molecule
(Royal Society of Chemistry, 2022)In this study, we address the problem of a C60 endohedrally confined hydrogen molecule through a configuration–interaction approach to electronic dynamics. Modeling the confinement by means of a combination of two Woods–Saxon ... -
Gas temperature and air fraction diagnosis of helium cold atmospheric plasmas by means of atomic emission lines
(Elsevier, 2022)In this work, we present a new method allowing the determination of both the gas temperature and the air fraction in non-thermal atmospheric helium plasmas. This new UV-Atomic Emission Spectroscopy technique based on the ... -
Cosmology of an axion-like majoron
(IOP Publishing, 2022)We propose a singlet majoron model that defines an inverse seesaw mechanism in the ν sector. The majoron ϕ has a mass mϕ ≈ 0.5 eV and a coupling to the τ lepton similar to the one to neutrinos. In the early universe it is ... -
Spectral Methods in Nonlinear Optics Equations for Non-Uniform Grids Using an Accelerated NFFT Scheme
(MDPI, 2023)In this work, we propose the use of non-homogeneous grids in 1D and 2D for the study of various nonlinear physical equations using spectral methods. As is well known, the use of spectral methods allow a faster resolution ...