Listar Artículos de revista ISC - ISC aldizkari artikuluak por título
Mostrando ítems 586-602 de 602
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Validation of 3D simulation tool for radio channel modeling at 60 GHz: a meeting point for empirical and simulation-based models
The radio channel modelling of the millimeter wave bands for the fifth generation of wireless mobile communications, appears as a challenge for both empirical and simulation approaches. In this paper we discuss the use of ... -
Valorization of insulation cellulose waste as solid biomass fuel
This paper investigates the ability of insulation cellulose fiber powder (CFP) to be pelletized for its valorization as biomass fuel. CFP is a waste originating from insulation cellulose manufacturing that lacks any method ... -
Valuations of transport nuisances and cognitive biases: a survey laboratory experiment in the Pyrenees region
We designed a survey that aims at estimating individual willingness-to-pay to reduce noise and air pollution arising from transportation activity near the Pyrenees in Navarre (Spain). Our participants cope with a series ... -
Vermicomposting of lavender waste: a biological laboratory investigation
In the present work, lavender waste, a residue of the essential oil extract industry, was used to feed Eisenia andrei with mature horse manure at ratios of 0:100, 25:75, 50:50, 75:25 and 100:0 on dry weight basis. ... -
Very-low frequency capacitively coupled AC amplifier with a current feedback operational amplifier
In this paper, we propose the idea of using transimpedance amplifiers, in lieu of operational amplifiers (OAs) or transconductance amplifiers (OTAs) to design capacitively coupled AC amplifiers. The idea is demonstrated ... -
Virtual antenna array for reduced energy per bit transmission at Sub-5 GHz mobile wireless communication systems
This paper presents an innovative technique to synthesize a virtual antenna array (VAA) that consumes less energy than conventional antenna arrays that are used in mobile communications systems. We have shown that for a ... -
Virtual FBGs using saturable absorbers for sensing with fiber lasers
The spectral narrowing of Fiber Bragg Gratings (FBGs) introduced by unpumped Er-doped fiber (EDF) was analyzed for fiber lasers (FL). Owing to spatial hole burning (SHB), the spectral response of a virtual FBG can be ... -
VTOL UAV digital twin for take-off, hovering and landing in different wind conditions
With UAVs becoming increasingly popular in the industry, vertical take-off and landing (VTOL) convertiplanes are emerging as a compromise between the advantages of planes and multicopters. Due to their large wing surface ... -
A water content continuous monitoring of grapevine xylem tissue using a portable low-power cost-effective FMCW radar
This paper presents the real-time monitoring of a grapevine’s water content that flows up through the xylem tissue by means of a frequency-modulated continuous-wave (FMCW) radar. The application of an optimization process, ... -
Watt-level green random laser at 532 nm by SHG of Yb-doped fiber laser
We have developed a Watt-level random laser at 532 nm. The laser is based on a 1064 nm random distributed ytterbium-gain assisted fiber laser seed with a 0.35 nm line-width and 900 mW polarized output power. A study for ... -
Wavelength and intensity based lossy mode resonance breathing sensor
Copper oxide (CuO) allows the generation of lossy mode resonance (LMR) in a wide wavelength range of the optical spectrum, both in the visible and the near-infrared (NIR). For this, it is necessary to use a configuration ... -
Wavelength converter using a highly Er-doped optical fiber ring laser
This work presents an all-fiber wavelength converter based on a highly Er-doped fiber laser, which has been experimentally demonstrated. Frequencies from several kilohertz up to tens of gigahertz have been investigated. ... -
Wavelength-switchable L-band fiber laser assisted by random reflectors
A wavelength-switchable L-band erbium-doped fiber laser (EDFL) assisted by an artificially controlled backscattering (ACB) fiber reflector is here presented. This random reflector was inscribed by femtosecond (fs) laser ... -
Weak and directional monotonicity of functions on Riesz spaces to fuse uncertain data
In the theory of aggregation, there is a trend towards the relaxation of the axiom of monotonicity and also towards the extension of the definition to other domains besides real numbers. In this work, we join both approaches ... -
Wideband backscattering reduction at terahertz using compound reflection grating
Backscattering reduction is usually achieved by using either absorbers or diffractions gratings at the expense of a narrow bandwidth. In this paper, we propose a different strategy based on a metallic compound reflection ... -
Wireless characterization and assessment of an UWB-Based system in industrial environments
The advent of Indsutrial Internet of Things is one of the main drivers for the implementation of Industry 4.0 scenarios and applications, in which wireless communication systems play a key role in terms of flexibility, ... -
Zero-loss switching in LLC resonant converters under discontinuous conduction mode: analysis and design methodology
Many thriving applications where isolation is required, such as LED drivers, traction and EV fast charging, implement LLC resonant converters, particularly when voltage regulation is not required or an additional ...