Search results for: esp
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Boletin del grupo espanol del carbon
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ESTRENO-CUADERNOS DEL TEATRO ESPANOL CONTEMPORANEO
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Anuario de Historia del Derecho Español (Madrid)
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HISPANIA. Revista Española de Historia
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Revista Española de Antropología Americana
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Revista Española de Filosofía Medieval
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Revista española de sanidad penitenciaria
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Revista Española de Derecho Internacional
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Boletin de la Asociacion de Geografos Espanoles
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Relay-aided Wireless Sensor Network Discovery Algorithm for Dense Industrial IoT utilizing ESPAR Antennas
PublicationIndustrial Internet of Things (IIoT) applicationsrequire reliable and efficient wireless communication. Assumingdense Wireless Sensor Networks (WSNs) operating in a harshenvironment, a concept of a Time Division Multiple Access(TDMA) based WSN enriched with Electronically SteerableParasitic Array Radiator (ESPAR) antennas is proposed andexamined in this work. The utilized...
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Improved RSS-Based DoA Estimation Accuracy in Low-Profile ESPAR Antenna Using SVM Approach
PublicationIn this paper, we have shown how the overall performance of direction-of-arrival (DoA) estimation using lowprofile electronically steerable parasitic array radiator (ESPAR) antenna, which has been proposed for Internet of Things (IoT) applications, can significantly be improved when support vector machine (SVM) approach is applied. Because the SVM-based DoA estimation method used herein relies solely...
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Improved RSS-Based DoA Estimation Accuracy in Low-Profile ESPAR Antenna Using SVM Approach
PublicationIn this paper, we have shown how the overall performance of direction-of-arrival (DoA) estimation using lowprofile electronically steerable parasitic array radiator (ESPAR) antenna, which has been proposed for Internet of Things (IoT) applications, can significantly be improved when support vector machine (SVM) approach is applied. Because the SVM-based DoA estimation method used herein relies solely on received signal strength...
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RSS-Based DoA Estimation in 802.11p Frequency Band Using ESPAR Antenna and PPCC-MCP Method
PublicationIn this paper, the concept of direction of arrival (DoA) estimation using electronically steerable parasitic array radiator (ESPAR) antenna designed to operate in IEEE 802.11p vehicular communication standard has been investigated with respect to different possible elevation angles of a radio frequency (RF) signal impinging the antenna. To this end, two different possible sets of the 3D antenna radiation patterns have been used...
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Design, Realization and Measurements of Enhanced Performance 2.4 GHz ESPAR Antenna for Localization in Wireless Sensor Networks
PublicationThis paper presents the design, realization and measurements of an Electronically Steerable Parasitic Array Radiator (ESPAR) antenna with enhanced performance of estimating the incoming signal direction. Designed antenna is dedicated for 2.4 GHz ISM applications with emphasis on Wireless Sensor Networks (WSN). Proposed antenna provides different radiation patterns by proper configuration of the parasitic elements. Thus, several...
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REVISTA DE LA SOCIEDAD GEOLOGICA DE ESPANA
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RA'E GA - O Espaco Geografico em Analise
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A system for Direction-Of-Arrival estimation in ISM 2.4 GHz frequency band based on ESPAR antenna and SDR technology
PublicationDetermination of the direction of the signal arrival (DOA) finds many applications in various areas of science and industry. Knowledge of DOA is used, among others to determine the position of a satellite with a low Earth orbit (LEO), localization of people and things as well as in research of wireless communication systems, for instance the determination of the number of...
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Embedded device for indoor positioning of mobile terminals in ISM 2.4 GHz frequency band integrated with ESPAR antenna
PublicationIn the era of multifunctional mobile phones, wireless positioning is one of the most important branches of telecommunications development. This functionality is possible thanks to global positioning systems such as GPS, whose services are available to every average user. Global systems, however, suffer from their low accuracy in confined environments such as forests and building interiors. A popular...
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Accurate PPCC-Based DoA Estimation Using Multiple Calibration Planes for WSN Nodes Equipped with ESPAR Antennas
PublicationIn this paper, we have introduced a new direction-of-arrival (DoA) estimation method, which relies on received signal strength (RSS) values measured at the output port of electronically steerable parasitic array radiator (ESPAR) antenna and uses the power pattern cross-correlation (PPCC) estimator. In the method, we have successfully incorporated measurements of ESPAR antenna's radiation patterns performed at multiple calibration...
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Fast Calibration-Free Single-Anchor Indoor Localization Based on Limited Number of ESPAR Antenna Radiation Patterns
Publication— In this article, we investigate how the calibrationfree single-anchor indoor localization algorithm developed for base stations equipped with electronically steerable parasitic array radiator (ESPAR) antennas can further be improved. By reducing the total number of ESPAR antenna radiation patterns used in localization process, one can significantly reduce the time needed for an object localization. Performed localization measurements...
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Esperienze Letterarie. Trimestrale di critica e di cultura
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Espacio, Tiempo y Forma. Historia Moderna
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Espacio, Tiempo y Forma. Historia Medieval
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Espacio, Tiempo y Forma. Historia Contemporánea
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Revista espanola de teologia
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Estudios de linguística Espanola
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Cuadernos de Rusistica Espanola
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Revista Espanola de Sociologia
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Revista Espanola de Patologia
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Revista Espanola de Drogodependencias
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Revista Espanola de Pediatria
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Revista Espanola de Quimioterapia
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REVISTA ESPANOLA DE CARDIOLOGIA
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Anales de Literatura Espanola
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Boletín de la real academia Española
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Revista Española de Educación Comparada (REEC)
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Revista española de orientación y psicopedagogia
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Revista española de cardiología (English ed.)
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Cahiers de Civilisation Espagnole Contemporaine-De 1808 Au Temps Present
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Reinforced Secure Gossiping Against DoS Attacks in Post-Disaster Scenarios
PublicationDuring and after a disaster, the perceived quality of communication networks often becomes remarkably degraded with an increased ratio of packet losses due to physical damages of the networking equipment, disturbance to the radio frequency signals, continuous reconfiguration of the routing tables, or sudden spikes of the network traffic, e.g., caused by the increased user activity in a post-disaster period. Several techniques have...
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Revista Espanola de Discapacidad-REDIS
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Revista Espanola de Cardiologia Suplementos
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Revista Espanola de Antropologia Fisica
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Revista Espanola de Medicina Legal
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Revista Espanola de Documentacion Cientifica
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Revista Espanola de Investigaciones Sociologicas
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REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS
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Revista Espanola de Medicina Nuclear
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Revista Espanola de la Transparencia
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Revista Espanola de Derecho Constitucional
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Revista Espanola de Investigacion Criminologica
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Revista Espanola de Salud Publica
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Comparison of target strength (TS) distributions obtained by means of the use of direct and indirect techniques in sea cages
PublicationThe aim of this study is to verify the reliability of a processing application developed for the indirect measurement of target strength (TS), with a view to the integration into a single-beam system for its utilization in fish farms. Dorsal and ventral measurements are carried out for gilt-head sea-bream (Spams Aurata) for 5 size classes using a split-beam EK60 echosounder and single-beam data obtained from one of the channels...
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CIRIEC-Espana Revista de Economia Publica Social y Cooperativa
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Open tools for benthic habitat mapping: study of seagrass (posidonia oceanica) in the natural park of Cabo de Gata
PublicationW artykule przedstawiono koncepcję wykorzystania otwartego oprogramowania dostępnego poprzez interfejs WWW służącego do analizy materiału zebranego przez echosondy jednowiązkowe i sonary boczne pod kątem klasyfikacji rozmiaru wystąpienia traw morskich Posidonia Oceanica. Jako przyklad przedstawiono analizę danych z sonaru bocznego zebranych w zatoce Cabo de Gata.
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Geopoliticas-Revista de Estudios sobre Espacio y Poder
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Espacio Tiempo y Forma. Serie II, Historia Antigua
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Ovarian Torsion in a Young Adolescent with Rokitansky Syndrome
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Pregnancy-associated Cancers: A Narrative Review
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ANALES DE LA LITERATURA ESPANOLA CONTEMPORANEA
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Revista Espanola de Anestesiologia y Reanimacion
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Revista Espanola de Geriatria y Gerontologia
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Rhythmica-Revista Espanola de Metrica Comparada
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Revista Espanola de Ciencia Politica-RECP
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Revista Espanola de Comunicacion en Salud
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Espacio Tiempo y Forma Serie VII-Historia del Arte
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Espacio Tiempo y Forma. Serie I, Prehistoria y Arqueología
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Electrical conductivity of nanostructured acceptor-doped ceria fabricated by spark plasma sintering (SPS)
PublicationHigh purity nanoscale powders (~10–15 nm size) of two different compositions of ceria, doped with Gd3+ and Ca2+, have been consolidated by spark plasma sintering (SPS) at different temperatures. Fully-dense samples were observed only at a sintering temperature of 980 °C. The as-sintered samples showed rather fast grain growth with an average grain size below 300 nm. The electrical properties of the samples were evaluated by impedance...
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Aloma-Revista de Psicologia Ciencies de l Educacio i de l Esport
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Estudios clásicos:órgano de la Sociedad española de estudios clásicos
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Archivos de la Sociedad Espanola de Oftalmologia
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Revista Espanola de Cirugia Oral y Maxilofacial
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Revista Espanola de Cirugia Ortopedica y Traumatologia
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Revista de la Sociedad Espanola del Dolor
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Revista Espanola de Nutricion Humana y Dietetica
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Boletin de la Asociacion Espanola de Entomologia
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A repeated game formulation of network embedded coding for multicast resilience in extreme conditions
PublicationComputer networks and data sharing applications are vital for our current society and fundamental for any available ICT solution, so that networking is considered as one of the key critical infrastructures and its correct behavior should be always enforced, even in case of disasters or severe execution conditions. Resilience is a strongly demanding nonfunctional requirement for current computer networks, and one of the key factors...
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Resilience of 5G Mobile Communication Systems to Massive Disruptions
PublicationThis chapter discusses vital techniques to enhance the resilience of 5G systems. It starts with dependability assessment of 5G networks. Next, it describes (a) the frequency fallback technique to improve availability and survivability of 5G services, (b) segment interleaving scheme to enhance communications resilience between base stations and the remaining part of the network and (c) multi-operator protection to address the resilience...
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Medievalismo. Boletín de la Sociedad Española de Estudios Medievales (Sevilla)
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Angulo Recto-Revista de Estudios Sobre la Ciudad Como Espacio Plural
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Revista Espanola de Medicina Nuclear e Imagen Molecular
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Revista Espanola de Estudios Agrosociales y Pesqueros-REEAP
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Signa-Revista de la Asociacion Espanola de Semiotica
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Systematic review of the effect of D‑mannose with or without other drugs in the treatment of symptoms of urinary tract infections/cystitis (Review)
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Gigantic electro-chemo-mechanical properties of nanostructured praseodymium doped ceria
PublicationSome oxygen defective fluorites are non-Newnham electrostrictors, i.e., the electromechanical response does not depend on their dielectric properties. Here, we show gigantic electrostriction in nanocrystalline 25 mol% praseodymium doped ceria (PCO) bulk ceramics. The material was fabricated with a fieldassisted spark plasma sintering (SPS) process from high-purity nanoscale PCO powders (<20 nm). The SPS process consolidates the...
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Physics augmented classification of fNIRS signals
PublicationBackground. Predictive classification favours performance over semantics. In traditional predictive classification pipelines, feature engineering is often oblivious to the underlying phenomena. Hypothesis. In applied domains such as functional Near Infrared Spectroscopy (fNIRS), the exploitation of physical knowledge may improve the discriminative quality of our observation set. Aims. Give exemplary evidence that intervening the...
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Electro-chemo-mechanical properties in nanostructured Ca-doped ceria (CDC) by field assisted sintering
PublicationRecent investigations have shown that highly oxygen defective cerium oxides generate non-classical electrostriction that is superior to lead-based ferroelectrics. In this work, we report the effect of field-assisted spark plasma sintering (SPS) on electro-chemo-mechanical properties of calcium doped ceria (CDC). Nanometric powders of Ca.10 nm are rapidly consolidated to form polycrystalline nanostructures with a high degree of...
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BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO
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De Computis-Revista Espanola de Historia de la Contabilidad
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Revista Cientifica de la Sociedad Espanola de Enfermeria Neurologica
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Revista Espanola de Nutricion Comunitaria-Spanish Journal of Community Nutrition
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Revista de estudios de adquisición de la lengua Espanola (REALE)
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Revista Espanola de Financiacion y Contabilidad-Spanish Journal of Financeand Accounting
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Probability of second live birth after first natural and medically assisted reproduction‐mediated live birth: A historical cohort study
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Prevalence and Factors Associated With Intertwin Birth Weight Discordance Among Same-Sex Twins in Lombardy, Northern Italy
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On the Disaster Resiliency within the Context of 5G Networks : The RECODIS Experience
PublicationNetwork communications and the Internet pervade our daily activities so deeply that we strongly depend on the availability and quality of the services they provide. For this reason, natural and technological disasters, by affecting network and service availability, have a potentially huge impact on our daily lives. Ensuring adequate levels of resiliency is hence a key issue that future network paradigms, such as 5G, need to address. This...
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InSitu-Revista Cientifica do Programa de Mestrado Profissional em Projeto Producao e Gestao do Espaco Urbano
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Cirugia pediatrica : organo oficial de la Sociedad Espanola de Cirugia Pediatrica
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Prevalence of polycystic ovary syndrome in European countries and USA: A systematic review and meta-analysis
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Vitamin and Carotenoid Intake and Outcomes of In Vitro Fertilization in Women Referring to an Italian Fertility Service: A Cross-Sectional Analysis of a Prospective Cohort Study
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