Física Aplicada: Enviaments recents
Ara mostrant els elements 181-200 de 556
New multiple matched filter: design and experimental realization
A method of making a multiple matched filter which allows the recognition of different characters in successive planes in simple conditions is proposed. The generation of the filter is based on recording on the same plate ...
Evidence of chemical reactions in the hydroxyapatite laser ablation plume with a water atmosphere
The expansion dynamics of the ablation plume generated by KrF laser irradiation of hydroxyapatite targets in a 0.1 mbar water atmosphere has been studied by fast intensified charge coupled device imaging with the aid of ...
Flood Fatalities in Europe, 1980-2018: Variability, Features, and Lessons to Learn
Floods are still a significant threat to people, despite of the considerable developments in forecasting, management, defensive, and rescue works. In the near future, climate and societal changes as both urbanization of ...
Enhanced light focusing inside scattering media with shaped ultrasound
Light focusing is the primary enabler of various scientific and industrial processes including laser materials processing and microscopy. However, the scattering of light limits the depth at which current methods can operate ...
Enhanced electron-electron correlations in nanometric epitaxial SrRuO3 epitaxial films
Epitaxial and fully strained SrRuO3 thin films have been grown on SrTiO3(100). At initial stages the growth mode is three-dimensional- (3D-)like, leading to a finger-shaped structure aligned with the substrate steps and ...
HighResMIP versions of EC-Earth: EC-Earth3P and EC-Earth3P-HR - description, model computational performance and basic validation
A new global high-resolution coupled climate model, EC-Earth3P-HR has been developed by the EC-Earth consortium, with a resolution of approximately 40 km for the atmosphere and 0.25∘ for the ocean, alongside with a ...
Interferometric characterization of GRIN lenses for ophtalmic uses
The proposal of this work is the study of a method for characterization of the focal of ophthalmic lenses whosesurface refraction index has been modified by diffusion techniques based on thermal ion exchange in glass. ...
Analysis of the role of mobility-lifetime products in the performance of amorphous silicon p-i-n solar cells
An analytical model of an amorphous silicon p-i-n solar cell is presented to describe its photovoltaic behavior under short-circuit conditions. It has been developed from the analysis of numerical simulation results. These ...
Adding functionalities to precomputed holograms with random mask multiplexing in holographic optical tweezers
In this study, we present a method designed to generate dynamic holograms in holographic optical tweezers. The approach combines our random mask encoding method with iterative high-efficiency algorithms. This hybrid method ...
Tribological Properties of Fluorinated Amorphous Carbon Thin Films
The peculiar electronic configuration of carbon atoms, 1s2 2s2 2p2, and the small energy difference between their 2p and 2s orbitals, compared to the binding energy of the carbon bonds, allow the electrons to rearrange ...
Three-dimensional polarimetric integral imaging in photon-starved conditions: performance comparison between visible and long wave infrared imaging
Three-dimensional (3D) polarimetric integral imaging (InIm) to extract the 3D polarimetric information of objects in photon-starved conditions is investigated using a low noise visible range camera and a long wave infrared ...
Effect of substrate temperature on deposition rate of rf plasma-deposited hydrogenated amorphous silicon thin films
We present a study about the influence of substrate temperature on deposition rate of hydrogenated amorphous silicon thin films prepared by rf glow discharge decomposition of pure silane gas in a capacitively coupled plasma ...
Polymeric interlayer in CdS-free Electron-Selective Contact for Sb2Se3 thin-film solar cells
High open-circuit voltage in Sb2Se3 thin-film solar cells is a key challenge in the development of earth-abundant photovoltaic devices. CdS selective layers have been used as the standard electron contact in this technology. ...
Seasonal prediction of climate-driven fire risk for decision-making and operational applications in a Mediterranean Region
In this paper, we assess and develop a climate service focused on the production of seasonal predictions for summer wildfires in a Mediterranean region through a participatory approach with end-users. We start by building ...
Reconstruction of Fresnel Holograms using partial wave front information
In this work we analyze the behavior of complex information in Fresnel domain taking into account the limited capability to display complex transmittance values of current liquid crystal devices, when used as holographic ...
Pollutant Concentration Changes During the COVID-19 Lockdown in Barcelona and Surrounding Regions: Modification of Diurnal Cycles and Limited Role of Meteorological Conditions
One of the consequences of the COVID-19 lockdowns has been the modification of the air quality in many cities around the world. This study focuses on the variations in pollutant concentrations and how important meteorological ...
Rheotaxial growth of CuInSe2 thin films
CuInSe2 thin films were deposited onto glass and liquid¿indium¿coated glass substrates by coevaporation of copper, indium, and selenium. The morphology, composition, and crystalline properties have been studied in relation ...
Development of laser-fired contacts for amorphous silicon layers obtained by Hot-Wire CVD
In this work we study aluminium laser-fired contacts for intrinsic amorphous silicon layers deposited by Hot-Wire CVD. This structure could be used as an alternative low temperature back contact for rear passivated ...
Thermally-Induced Structural Transformations on Polymorphous Silicon
Polymorphous Si is a nanostructured form of hydrogenated amorphous Si that contains a small fraction of Si nanocrystals or clusters. Its thermally induced transformations such as relaxation, dehydrogenation, and crystallization ...
An overview of tornado and waterspout events in Catalonia (2000-2019)
Tornado climatologies are essential to enhance our knowledge about their frequency and spatial distribution, together with their damage path characteristics. Due to their small spatiotemporal scale, tornado detection is ...
