Browsing Comunicaciones y ponencias de congresos DIEC - IEKS Biltzarretako komunikazioak eta txostenak by Title
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AC/DC millivoltage sensor by means of ITO-coated optical fibers: towards monitoring of biosignals
This contribution shows the monitoring of AC and DC millivoltage signals by means of lossy mode resonances generated by Indium Tin Oxide (ITO) on optical fibers. Sensors were obtained by sputtering ITO thin-films onto 25 ... -
Active damping based on the capacitor voltage positive-feedback for grid-connected power converters with LCL filter
The capacitor voltage positive-feedback is a widely extended active damping strategy. It can effectively damp the LCL output filter resonant poles for low ratios of resonance to sampling frequencies. However, the existing ... -
Adjustment of the fuzzy logic controller parameters of the energy management strategy of a grid-tied domestic electro-thermal microgrid using the Cuckoo search algorithm
During the last century, population growth, together with economic development, has considerably increased the energy demand and, although renewable energies are becoming an alternative, still total energy supply is mainly ... -
Analysis of the main battery characterization techniques and experimental comparison of commercial 18650 Li-ion cells
Over the coming years, major growth in the use of Li-ion batteries is expected, both in electric mobility as well as in stationary applications, be it in self-consumption systems and micro grids or in large renewable power ... -
Angle-susceptible sensing metasurface in terahertz regime
Nowadays thin-film coatings and structures are widely used in advanced industrial and scientific ap-plications that makes the tasks of thin-film sensing highly demanded in practice. Last decade, stimulated by progress in ... -
Automated reconfigurable antenna impedance for optimum power transfer
(IEEE, 2020) Contribución a congreso / Biltzarrerako ekarpenaThis paper presents an approach to implement an automatically tuning antenna for optimising power transfer suitable for software defined radio (SDR). Automatic tuning is accomplished using a closed loop impedance tuning ... -
Characterization and capacity dispersion of lithium-ion second-life batteries from electric vehicles
Nowadays, electric vehicle batteries reutilization is considered such as a feasible alternative to recycling, as it allows to benefit from their remaining energy and to enlarge their lifetime. Stationary applications as ... -
Characterization of 3D-printed choke horn antenna for 5G backhaul applications
The 200 and 320 GHz frequency band constitutes an interesting window with approximately constant attenuation, which could potentially have applications in the area of ultrahigh-capacity wireless links. The user's demand ... -
CMOS low-voltage indirect current feedback instrumentation amplifiers with improved performance
(IEEE, 2020) Contribución a congreso / Biltzarrerako ekarpenaIndirect current feedback (ICF) is a very common operation principle used in the design of CMOS instrumentation amplifiers (IA). The input and output transconductors required in an ICF IA usually consist on resistive-degenerated ... -
Critical comparison of energy management algorithms for lithium-ion batteries in renewable power plants
Lithium-ion batteries are gaining importance for a variety of applications due to their price decrease and characteristics improvement. A good energy management strategy is required in order to increase the profitability ... -
DC capacitance reduction in three-phase photovoltaic inverters by using virtual impedance emulation
DC voltage regulation in grid-connected three-phase PV inverters is a fundamental requirement. In order to reduce the influence of the PV non-linear behavior and ensure stability in the whole operating range, the input ... -
Design of a groove gap waveguide to microstrip inline transition
In this paper the design of an inline transition between microstrip and groove gap waveguide operating at Wband is presented. The transition consists of two sections: a tapered microstrip line and a Chebyshev transformer. ... -
Economic analysis of residential PV self-consumption systems with Li-ion batteries under different billing scenarios
(IEEE, 2019) Contribución a congreso / Biltzarrerako ekarpenaIn this paper, an economic analysis for four houses with a PV self-consumption system with and without Li-ion batteries is carried out. In particular three different ways of sizing PV and batteries are analyzed under three ... -
Effective analysis of secure web response time
The measurement of response time in web based applications is a common task for the evaluation of service responsiveness and the detection of network or server problems. Traffic analysis is the most common strategy for ... -
Folded Cascode OTA with 5540 MHzpF/mA FoM
A micropower single-stage folded cascode amplifier able to drive a wide range of capacitive loads is presented. It features class AB operation and includes power-efficient adaptive biasing techniques, which provide enhanced ... -
Fuzzy-based energy management of a residential electro-thermal microgrid based on power forecasting
In this paper, an energy management strategy based on microgrid power forecasting is applied to a residential grid-connected electro-thermal microgrid with the aim of smoothing the power profile exchanged with the grid. ... -
Gamma radiation measurements using an optical fiber laser
A fiber ring laser cavity configuration was used to analyze the effect of gamma-irradiation over the performance of different types of erbium doped fibers. Preliminary results validates this method to monitor gamma-radiation ... -
High sensitivity fiber-optic liquid level sensor using biconical tapered fibers
A liquid level sensor is presented using a biconical tapered standard single-mode fiber, being its main characteristic an outstanding sensitivity for a low cost transducer. Temperature compensation is enabled with the same ... -
High-speed analysis of SMB2 file sharing traffic without TCP stream reconstruction
This paper presents a file sharing traffic analysis methodology for Server Message Block (SMB), a common protocol in the corporate environment. The design is focused on improving the traffic analysis rate that can be ... -
Hydrogen educational activities developed by APERNA: a renewable-energy student association
In this paper, we present APERNA, a recently-created student association at Public University of Navarre (UPNA) with the aim of promotion of renewable energies.