Buscar
Mostrando ítems 1-10 de 81
A Contratação Pública Ecológica no Direito Português e Espanhol
(Centro de Estudios de Direito Público e Regulaçäo, 2018)
Artículo / Artikulua,
Gas detection using LMR-based optical fiber sensors
(MDPI, 2018)
Artículo / Artikulua,
This work presents a first approach to the utilization of Lossy Mode Resonance (LMR)
based optical fiber sensors for gas detection. The optical sensor is based on a SnO2 thin-film
fabricated onto the core of cladding ...
Steering surface plasmons with a graded index dielectric medium
(IOP Publishing, 2018)
Artículo / Artikulua,
The arbitrary control of surface plasmon (SP) propagation has become an intense research topic for several decades. This is due to the fact that they can be used in a variety of fields such as optical trapping, nanoantennas ...
New measures for comparing matrices and their application to image processing
(Elsevier, 2018)
Artículo / Artikulua,
In this work we present the class of matrix resemblance functions, i.e., functions that measure
the difference between two matrices. We present two construction methods and study the properties
that matrix resemblance ...
Methodology for sizing stand-alone hybrid systems: a case study of a traffic control system
(Elsevier, 2018)
Artículo / Artikulua,
This paper proposes a methodology for sizing stand-alone hybrid photovoltaic-wind power generation systems. This methodology makes it possible to optimise the overall performance of the stand-alone system components, based ...
Kinematic design of a new four degree-of-freedom parallel robot for knee rehabilitation
(ASME, 2018)
Artículo / Artikulua,
Rehabilitation robots are increasingly being developed in order to be used by injured people to perform exercise and training. As these exercises do not need wide range movements, some parallel robots with lower mobility ...
Extraordinary THz transmission with a small beam spot: the leaky wave mechanism
(Wiley, 2018)
Artículo / Artikulua,
The discovery of extraordinary optical transmission (EOT) through patterned
metallic foils in the late 1990s was decisive for the development of plasmonics
and cleared the path to employ small apertures for a variety of ...
Ku band low profile asymmetric Bull’s-Eye antenna with reduced side lobes and monopole feeding
(IEEE, 2018)
Artículo / Artikulua,
In this paper, a linearly polarized low profile and asymmetric Bull’s-Eye leaky wave antenna fed by a monopole operating at 13 GHz is presented. Broadside radiation from the monopole is achieved by surrounding it with an ...
Optimized strain long-period fiber grating (LPFG) sensors operating at the dispersion turning point
(IEEE, 2018)
Artículo / Artikulua,
Two phenomena for enhancing the sensitivity of longperiod
fiber gratings are combined toward an increase of the sensitivity
to strain of this type of devices: the dispersion turning point
(DTP) and the cladding diameter ...
Nanofabrication of phase-shifted Bragg gratings on the end facet of multimode fiber towards development of optical filters and sensors
(Elsevier, 2018)
Artículo / Artikulua,
This work describes the process of nanofabrication of phase-shifted Bragg gratings on the end facet of a
multimode optical fiber with a pulsed DC sputtering system based on a single target. Several structures
have been ...