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On the reduction of authoritative DNS cache timeouts: detection and implications for user privacy
(Elsevier, 2021)
info:eu-repo/semantics/article,
The domain name system (DNS) is an Internet network service that is used by hosts to resolve IP addresses from symbolic names. This basic service has been attacked and abused many times, as it is one of the oldest and most ...
Design and experimental validation of an augmented reality system with wireless integration for context aware enhanced show experience in auditoriums
(IEEE, 2021)
info:eu-repo/semantics/article,
The development of multiple cultural and social related activities, such as shows related with the performing arts, conferences or presentations rely on facilities such as auditoriums, theatres and conference sites, which ...
Study on on-chip antenna design based on metamaterial-inspired and substrate-integrated waveguide properties for millimetre-wave and THz integrated-circuit applications
(Springer, 2021)
info:eu-repo/semantics/article,
This paper presents the results of a study on improving the performance parameters such as the impedance bandwidth, radiation gain and efficiency, as well as suppressing substrate loss of an innovative antenna for on-chip ...
Energy-efficient amplifiers based on quasi-floating gate techniques
(MDPI, 2021)
Artículo / Artikulua,
Energy efficiency is a key requirement in the design of amplifiers for modern wireless applications. The use of quasi-floating gate (QFG) transistors is a very convenient approach to achieve such energy efficiency. We ...
Stabilization of a clay soil using cementing material from spent refractories and ground-granulated blast furnace slag
(MDPI, 2021)
Artículo / Artikulua,
Nowadays, huge amounts of refractory materials are generated around the world. The majority of them lack valorization methods. This study analyzes the ability of a doloma and two magnesia spent refractory wastes as soil ...
Metageometries for polycyclic aromatic hydrocarbons detection at THz range in food systems
(IEEE, 2021)
Artículo / Artikulua,
Polycyclic aromatic hydrocarbons, when present in food systems, have been shown to have a detrimental effect on human health, producing carcinogenic elements. So, the implementation of processes for their detection and ...
Discrete IV dG-Choquet integrals with respect to admissible orders
(Elsevier, 2021)
info:eu-repo/semantics/article,
In this work, we introduce the notion of dG-Choquet integral, which generalizes the discrete Choquet integral replacing, in the first place, the difference between inputs represented by closed subintervals of the unit ...
Non-invasive aging analysis of lithium-ion batteries in extreme cold temperatures
(IEEE, 2021)
info:eu-repo/semantics/article,
This paper presents a non-invasive technical analysis of the degra-dation of four lithium-ion batteries (LIBs) used in extreme frigid weather. In contrast to other studies in which the batteries were tested in laboratory ...
An innovative way of using coherently radiating periodic structures for phased arrays with reduced number of phase shifters
(IEEE, 2021)
info:eu-repo/semantics/article,
This article presents an innovative design technique for feeding phase antenna arrays using coherently radiating periodic structure (CORPS) technology for reducing the number of phase shifters (PSs) in limited-scan ...
Hybrid analog-digital SAR instrument with reflector antenna and overlapped subarray feed for earth observation
(IEEE, 2021)
info:eu-repo/semantics/article,
As part of the European Space Agency (ESA) studies of new instrument for Earth observation, the design of a synthetic aperture radar (SAR) architecture based on overlapped array antennas was launched last year. The objective ...