Enginyeria Electrònica i Biomèdica: Recent submissions
Now showing items 481-500 of 787
The need for external validation in machine olfaction: emphasis on health-related applications
Over the last two decades, electronic nose research has produced thousands of research works. Many of them were describing the ability of the e-nose technology to solve diverse applications in domains ranging from food ...
Dependence of impedance of embedded single cells on cellular behaviour
Non-invasive single cell analyses are increasingly required for the medicaldiagnostics of test substances or the development of drugs and therapies on the single celllevel. For the non-invasive characterisation of cells, ...
Design, Additive Manufacturing, and Characterization of a Symmetric 3-Way Wilkinson Power Divider/Combiner
This work presents the design, manufacturing and electromagnetic characterization of compact 3-way Wilkinson power divider/combiner prototypes intended to work in the sub-GHz frequency band. The primary objective is to ...
Measurement of the Ratio of Branching Fractions B (Bc+ →j /ψτ+ντ)/ B (Bc+ →j /ψμ+νμ)
A measurement is reported of the ratio of branching fractions R ( J / ψ ) = B ( B + c → J / ψ τ + ν τ ) / B ( B + c → J / ψ μ + ν μ ) , where the τ + lepton is identified in the decay mode τ + → μ + ν μ ¯ ν τ . This analysis ...
Microstructure and secondary phases in coevaporated CuInS2 films: Dependence on growth temperature and chemical composition
The microstructure of CuInS2-(CIS2) polycrystalline films deposited onto Mo-coated glass has been analyzed by Raman scattering, Auger electron spectroscopy (AES), transmission electron microscopy, and x-ray diffraction ...
Analysis and Optimization of Multi-Winding Toroidal Inductors for Use in Multilayered Technologies
The aim of this paper is to compare the performance of planar toroidal inductors and circular spiral inductors in multilayered technologies, in terms of achievable inductance density. New multi-winding toroidal inductor ...
Nanoscale mapping of the conductivity and interfacial capacitance of an electrolyte-gated organic field-effect transistor under operation
Versió postprint del document publicat a: https://doi.org/10.1002/adfm.202008032
Cationic and charge segregation in La2/3Ca1/3MnO3 thin films grown on (001) and (110) SrTiO3.
Electron energy-loss spectroscopy is used to map composition and electronic states in epitaxial La2/3Ca1/3MnO3 films grown on SrTiO3 001 and 110 substrates. It is found that in partially relaxed 110 films cationic ...
Sensitivity-selectivity trade-offs in surface ionization gas detection
Surface ionization (SI) provides a simple, sensitive, and selective method for the detection of high-proton affinity substances, such as organic decay products, medical and illicit drugs as well as a range of other hazardous ...
Geiger-Mode Avalanche Photodiodes in Standard CMOS Technologies
Photodiodes are the simplest but most versatile semiconductor optoelectronic devices. They can be used for direct detection of light, of soft X and gamma rays, and of particles such as electrons or neutrons. For many ...
Síntesis de capas de SiC en substrato de Si mediante implantación iónica
En este trabajo se investiga la síntesis de estructuras SiC/Si mediante implantación iónica de carbono en Si. Las implantaciones se han realizado a energías entre 25 y 300 keV y las dosis en el rango lO^^ylO^^ cm , manteniendo ...
Enzyme controlled transient phospholipid vesicles for regulated cargo release
Metabolism in biological systems involves the continuous formation and breakdown of chemical and structural components, driven by chemical energy. In specific, metabolic processes on cellular membranes result in in situ ...
Influence of average size and interface passivation on the spectral emission of Si nanocrystals embedded in SiO2
The correlation between the structural (average size and density) and optoelectronic properties [band gap and photoluminescence (PL)] of Si nanocrystals embedded in SiO2 is among the essential factors in understanding their ...
Breath analysis using electronic nose and gas chromatography-mass spectrometry: A pilot study on bronchial infections in bronchiectasis
Background and aims: In this work, breath samples from clinically stable bronchiectasis patients with and without bronchial infections by Pseudomonas Aeruginosa- PA) were collected and chemically analysed to determine if ...
Elastic tunneling charge transport mechanisms in silicon quantum dots / SiO2 thin films and superlattices
The role of different charge transport mechanisms in Si /SiO2 structures has been studied. A theoretical model based on the Transfer Hamiltonian Formalism has been developed to explain experimental current trends in terms ...
Wind-independent estimation of gas source distance from transient features of metal oxide sensor signals
The intermittency of the instantaneous concentration of a turbulent chemical plume is a fundamental cue for estimating the chemical source distance using chemical sensors. Such estimate is useful in applications such as ...
Sintesis por implantacion ionica de nanocristales semiconductores para dispositivos en tecnologia de Si
En este artículo se estudia la síntesis de nanocristales semiconductores elementales y compuestos elaborados por implantación iónica en SiO2. En el caso de los nanocristales de Si, se ha desarrollado un estudio sistemático ...
Experimental study of the structural and magnetic properties of gamma-Fe2O3 nanoparticles.
Structural and magnetic properties of -Fe2O3 nanoparticles annealed at 200 and 250 °C have been studied by using high resolution transmission electron microscopy TEM, electron energy loss spectroscopy, x-ray diffraction, ...
Characterization of odour emissions in a wastewater treatment plant using a drone-based chemical sensor system
Conventionally, odours emitted by different sources present in wastewater treatment plants (WWTPs) are measured by dynamic olfactometry, where a human panel sniffs and analyzes air bags collected from the plant. Although ...
Effects of thickness on the cation segregation in epitaxial (001) and (110) La2/3Ca1/3MnO3 thin films
Electron-energy-loss spectroscopy is used to map composition and electronic states in epitaxial La2/3Ca1/3MnO3 LCMO films of various thicknesses grown on SrTiO3 001 and 110 substrates. For relatively thick films 20 nm ...
