Browsing DFis-Artículos, capítulos, libros... by Title
Now showing items 1-20 of 133
-
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 ... -
A practical method for plasma diagnosis with Balmer series hydrogen lines
(Elsevier, 2020)Hydrogen Balmer series lines have been widely used to determine characteristic plasma parameters such as electron density. These parameters are related to internal processes occurring in plasma (Stark effect, Doppler effect, ... -
A simple and accurate analytical model of the Stark profile and its application to plasma characterization
(Elsevier, 2018)Optical Emission Spectroscopy techniques are among the most employed to perform the characterization of laboratory plasmas. The analysis of the obtained data is based on the convolution of three different types of profiles: ... -
Accesibilidad a Internet: requisitos para la calidad en la docencia e investigación
(Universidad de Córdoba, Vicerrectorado de Innovación y Calidad Docente, 2005)A good Internet platform for teaching and research must be accessible, independently of the computer platform used, language and other peculiarities (personal or external). This work analyzes the current limitations of ... -
Accurate measurement of the ion saturation current collected by a cylindrical Langmuir probe in cold plasmas
(Wiley, 2020)This paper analyzes the results of accurate measurements of the ion current collected by a cylindrical Langmuir probe immersed in cold argon, neon, and helium plasmas. These measurements make it possible to study the ... -
Airflow and teleconnection patterns driving the spatial and temporal variability of high 7Be air concentrations in Europe
(Elsevier, 2022)The long-term monitoring of the cosmogenic 7Be activity concentrations has been used to better understand the influence of large-scale atmospheric circulation dynamics in the troposphere. With an aim, this study analyzes ... -
An experimental study of the dependence on the current intensity of the erosion of thoriated tungsten cathodes in plasma arcs
(IEEE, 2001)The erosion occurring in thoriated tungsten cathodes used in transferred plasma torches operating with current intensities ranging from 30 to 210 A has been experimentally investigated. The cathode erosion rate was determined ... -
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 ... -
Analysis and design of an inverted oscillating water column for energy storage under choked flow conditions
(Elsevier, 2023)A novel idealised system based on an inverted, oscillating water column (iOWC) immersed in a mass of water as a potential mechanism for energy storage has been investigated. The system consists of a cylindrical tube separated ... -
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 ... -
Analysis of the Heat Pump Market in Europe with a Special Regard to France, Spain, Poland and Lithuania
(SCIENDO, 2021-11-03)Becoming the world’s first climate-neutral continent by 2050 is currently the most ambitious European goal. Heat pumps are the example of the key technology, which could help to achieve the aim by heating, cooling and ... -
Analysis of the ion collisional contribution over the Stark profile in Hα line
(Elsevier, 2022)Laboratory plasmas can be characterized by Optical Emission Spectroscopy techniques by using Hydrogen Balmer series lines. The line shape is the result of the convolution of the several internal process occuring in plasma. ... -
Analysis of the virtual cathode and floating potential of a thermionic emissive probe operating in the space-charge-limited regime
(IOP Publishing, 2023)This paper analyses by this and characterizes a thermionic emissive probe operating in both the temperature-limited current regime (T-region) and the space-charge-limited current regime (S-region) characterized by the ... -
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 ... -
ASPIN: An all spin scattering code for atom–molecule rovibrationally inelastic cross sections
(Elsevier, 2008)We present in this work a new computational code for the quantum calculation of integral cross sections for atom–molecule (linear) scattering processes. The atom is taken to be structureless while the molecule can be in ... -
Assessment of two atmospheric-pressure microwave plasma sources for H2 production from ethanol decomposition
(Elsevier, 2021)H2 is considered as a sustainable fuel despite being obtained from other raw sources. Plasma technology can be used to produce it from alcohol decomposition as an excellent alternative technique to those habitually utilized. ... -
Asymptotic mass limit of large fully heavy compact multiquarks
(American Physical Society, 2023)The properties of fully heavy arrangements including a number of quarks between 5 and 12 were calculated within the framework of a constituent quark model by using a diffusion Monte Carlo technique. We considered only ... -
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. ... -
BAO cosmology in non-spatially flat background geometry from BOSS+eBOSS and lessons for future surveys
(IOP Publishing, 2024)We study the impact of the assumption of a non-flat fiducial cosmology on the measurement, analysis and interpretation of BAO distance variables, along and across the line-of-sight. The assumption about cosmology enters ... -
Boundary layer structure of the sheath surrounding a cylindrical or spherical probe in electronegative plasmas
(2012)This paper examines a positive ion sheath close to a cylindrical and/or spherical probe in electronegative plasmas and its transition from electropositive to electronegative behaviours when the relative density and temperature ...