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Analysis of radio wave propagation for ISM 2.4 GHz wireless sensor networks in inhomogeneous vegetation environments
(MDPI, 2014)
info:eu-repo/semantics/article,
The use of wireless networks has experienced exponential growth due to the improvements in terms of battery life and low consumption of the devices. However, it is compulsory to conduct previous radio propagation analysis ...
Synthesis of volumetric ring antenna array for terrestrial coverage pattern
(Hindawi, 2014)
info:eu-repo/semantics/article,
This paper presents a synthesis of a volumetric ring antenna array for a terrestrial coverage pattern. This synthesis regards the spacing among the rings on the planes X -Y, the positions of the rings on the plane X -Z, ...
Full three-dimensional isotropic transformation media
(IOP Publishing, 2014)
info:eu-repo/semantics/article,
We present a method that enables the implementation of full three-dimensional
(3D) transformation media with minimized anisotropy. It is based on a special
kind of shape-preserving mapping and a subsequent optimization ...
Energy management strategy for a battery-diesel stand-alone system with distributed PV generation based on grid frequency modulation
(Elsevier, 2014)
Artículo / Artikulua,
A hybrid PV-Battery-Diesel configuration is very attractive for stand-alone systems in terms of cost and reliability. In many applications, the battery and the diesel generator are centralized and generate the AC grid while ...
Induction theorem analysis of resonant nanoparticles: design of a huygens source nanoparticle laser
(American Physical Society, 2014)
info:eu-repo/semantics/article,
We propose an advanced formulation of standard antenna theory for the basic investigation and design of resonant nanoparticles. This methodology is based on transforming the original scattering problem into a radiation ...
Dual-wavelength single-longitudinal-mode erbium fiber laser for temperature measurements
(SPIE, 2014)
info:eu-repo/semantics/article,
A dual-wavelength erbium fiber laser with single-longitudinal-mode characteristic is proposed and demonstrated. The system uses a 7-m-long highly doped erbium-doped fiber as the primary gain medium while two fiber Bragg ...
Zigbee radio channel analysis in a complex vehicular environment [wireless corner]
(IEEE, 2014)
Artículo / Artikulua,
In this paper, the influence of topology and morphology of a particularly
complex scenario for the deployment of ZigBee wireless sensor networks is analyzed.
This complex scenario is a car. The existence of loss mechanisms ...
Least upper bounds of the powers extracted and scattered by bi-anisotropic particles
(IEEE, 2014)
Artículo / Artikulua,
The least upper bounds of the powers extracted and
scattered by bi-anisotropic particles are investigated analytically.
A rigorous derivation for particles having invertible polarizability
tensors is presented, and the ...
Optimization of a pin surface as a solution to suppress cavity modes in a packaged W-band microstrip receiver
(IEEE, 2014)
Artículo / Artikulua,
A pin surface structure has been used in the upper
metal plate of a packaged W-band RF front-end receiver in order
to suppress the propagation of unwanted modes. A full parametric
analysis of the periodic structure within ...
Modelling of PEM fuel cell performance: steady-state and dynamic experimental validation
(MDPI, 2014)
Artículo / Artikulua,
This paper reports on the modelling of a commercial 1.2 kW proton exchange membrane fuel cell (PEMFC), based on interrelated electrical and thermal models. The electrical model proposed is based on the integration of the ...