Articles de revista
Enviaments recents
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Voltage support provided by three-phase three-wire inverters with independent reactive phase-current injection
(Institute of Electrical and Electronics Engineers (IEEE), 2024)
Article
Accés obertDuring voltage sags, three-phase three-wire power inverters can provide voltage support with several current injection strategies. In general, good results are ob- tained, except in overvoltage situations when one or more ... -
Highly reflective and passivated ohmic contacts in p-Ge by laser processing of aSiCx:H(i)/Al2O3/aSiC films for thermophotovoltaic applications
(2024-01-15)
Article
Accés obertCrystalline germanium (c-Ge) has historically been regarded as a cost-effective alternative to III-V semiconductors for thermophotovoltaic (TPV) device fabrication. However, Ge-based devices have not yet reported high ... -
Impact of atomic layer deposition temperature on electrical and optical properties of ZnO:Al films
(Elsevier, 2024-03-01)
Article
Accés obertThis work highlights the impact of growth temperature on electrical and optical properties of Al-doped ZnO (AZO) films deposited by atomic layer deposition (ALD) technique. The ALD process and super-cycle sequence have ... -
Variations of the Gauss Seidel and the gauss implicit z-bus load flow methods for primary-secondary integrated distribution grids
(Elsevier, 2022-09)
Article
Accés restringit per política de l'editorialThe primary and secondary distribution grids are typically designed separately and operated with a radial configuration; therefore, specialized load flow methods only applicable to radial or weakly meshed networks are ... -
Simple fuzzy logic-based energy management for power exchange in isolated multi-microgrid systems: a case study in a remote community in the Amazon region of Ecuador
(Elsevier, 2024-03-01)
Article
Accés restringit per política de l'editorialNowadays, the increase in electric power coverage worldwide is a priority scope of the study, where Microgrids (MG) emerge as feasible solutions to supply electricity. The use of MG to provide energy to isolated communities, ... -
On the use of fractional calculus to improve the pulse arrival time (PAT) detection when using photoplethysmography (PPG) and electrocardiography (ECG) signals
(Public Library of Science (PLOS), 2024-02-16)
Article
Accés obertThe pulse arrival time (PAT) has been considered a surrogate measure for pulse wave velocity (PWV), although some studies have noted that this parameter is not accurate enough. Moreover, the inter-beat interval (IBI) time ... -
Semitransparent wide bandgap Cu2ZnGe(S,Se)4 thin-film solar cells: Role of the sulfurization process
(John Wiley & sons, 2023-12-27)
Article
Accés obertSemitransparent solar cells are very attractive due to the increasing integration in daily life. Kesterite-type based thin-film solar cells stand out because of its environmentally benign composition and outstanding ... -
A novel three-dimensional sigma–delta modulation for high-switching-frequency three-phase four-wire active power filters
(2024-02-01)
Article
Accés obertThis article presents a new modulation technique called three-dimensional sigma–delta (3D-S¿ ) modulation for high-frequency three-leg four-wire voltage source converters (VSCs) that use wide-bandgap (WBG) semiconductors. ... -
A review on the effects of thermal inversions and electromagnetic fields on cell cultures and wireless communications
(2023-12-01)
Article
Accés obertThermal inversions, typical in the winter season, consist of cold air at the Earth’s surface being trapped under a layer of warmer air. Such an effect keeps normal convective overturning of the atmosphere from penetrating ... -
Quiescent current analysis and experimentation of defective CMOS circuits
(1992-12)
Article
Accés restringit per política de l'editorialPhysical defects widely encountered in today's CMOS processes (bridges, gate oxide short (gas) and floating gates) are modeled taking into account the topology of the defective circuit and the parameters of the technology. ... -
KCN chemical etching of van der Waals Sb2Se3 thin films synthesized at low temperature leads to inverted surface polarity and improved solar cell efficiency
(American Chemical Society (ACS), 2024-01-22)
Article
Accés obertRecent developments in Sb2Se3 van der Waals material as an absorber candidate for thin film photovoltaic applications have demonstrated the importance of surface management for improving the conversion efficiency of this ... -
Efficiency enhancement and doping type inversion in Cu2CdSnS4 solar cells by Ag substitution
(Royal Society of Chemistry (RSC), 2023-12-22)
Article
Accés obertThe main limiting factor of kesterite-related solar cells is the low open-circuit voltage (VOC) relative to their bandgap. This drawback has been correlated with the easily formed anti-site defects caused by similar ionic ...