Communications
Mostrando 1-12 de 1056 artigos, teses e dissertações.
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1. Design and Simulation of Broadband Horn Nanoantennas for Nanophotonic Applications
Abstract Optical plasmonic nanoantennas have proven useful in nanoplasmonic applications, paving the way for more efficient wireless optical communications. In this work, we propose a parametric study of a plasmonic horn nanoantenna in flat H sectorial format and beveled horn, both designed to radiate in the three wavelengths of optical communications: [850
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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2. A Compact Dual-Band Self-Diplexing MIMO Patch Antenna for ISM and X-Band Communications
Abstract A compact, dual-band, and self-diplexing MIMO patch antenna with a shared aperture is presented for Industrial scientific medical (ISM) band and X-band communications. The structure consists of two orthogonal feed lines and a rectangular slot in a square patch. The size of the FR4 substrate is 50 × 50 × 1.6 mm3. The designed structure operates at
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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3. MIMO-PLC Communications in an Experimental Medium Voltage Network: Measurement and Analysis
Abstract This paper presents measurements at a mock-up medium voltage network to verify the feasibility of Broadband Power Line Communication (BPLC). We use the data extracted within the frequency range 2 − 30 MHz to characterize a MIMO PLC network using different phase combinations, defining the best and worst use case scenarios. The empirical data shows
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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4. Le cause degli errori giudiziari e i meccanismi di prevenzione e riparazione delle condanne e imputazioni ingiuste
Abstract The paper aims to investigate the multiple factors, including institutional ones, that give rise to judicial errors originate, considered inescapable elements of any trial system. In addition to analysing the influence that the criminal process through the media can have on the judge’s free conviction, the paper examines a number of emblematic cas
Revista Brasileira de Direito Processual Penal. Publicado em: 2022
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5. Testicular arteries anatomy applied to fowler-sthephens surgery in high undescended testis – a narrative review
ABSTRACT Objectives: In this review we will describe the testicular vessels anatomy and the implications of these vessels in surgical treatment of high undescended testis. Material and Methods: We performed a narrative review of the literature about the role of the testicular arteries anatomy in the treatment of high undescended testis. We also studied two
International braz j urol. Publicado em: 2022
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6. Hospitalization, mortality and public healthcare expenditure in Brazil during the COVID-19 crisis: vulnerabilities in the spotlight
ABSTRACT BACKGROUND: Multiple opinion-based communications have highlighted the actions of the Brazilian government during the pandemic. Nevertheless, none have appraised public data to identify factors associated with worsening of the healthcare system. OBJECTIVE: To analyze and collate data from public health and treasury information systems in order t
Sao Paulo Medical Journal. Publicado em: 2022
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7. FD MAC Protocol Design for Co-Existing WLANs in 5G Cellular Networks
Abstract In this paper, we design full-duplex (FD) medium access control (MAC) protocol for co-existing wireless local area networks (WLANs) in 5G cellular networks (WCFD-MAC). Our design considers some significant features of 5G networks, exceptionally, beamforming and FD capabilities at both, the base station and user equipment. FD communications may gener
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2021-03
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8. Wide Band Stop Response Using Interdigital Capacitor/CSRR DGS in Elliptical Microstrip Low-Pass Filter
Abstract In this paper, a compact elliptic-response microstrip low pass filter (LPF) is presented with a wide stop-band using stepped impedance resonators. With high attenuation in the stop-band, the overall size reduction of the proposed filter is achieved using a novel defected ground structure technique using an interdigital capacitor and complementary sp
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2020-12
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9. Diretrizes para o Desenho Universal para a Aprendizagem (DUA)
RESUMO: As Diretrizes do Desenho Universal para a Aprendizagem - DUA (UDL na língua inglesa) começaram como um projeto do Centro Nacional de Acesso ao Currículo Geral (NCAC), um acordo de colaboração entre o Centro de Tecnologias Especiais Aplicadas (CAST) e o Escritório de Programas de Educação Especial (OSEP) do Departamento de Educação dos Estad
Rev. bras. educ. espec.. Publicado em: 2020-10
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10. Quick beginners guide and tips on how to write a manuscript
RESUMO: As Diretrizes do Desenho Universal para a Aprendizagem - DUA (UDL na língua inglesa) começaram como um projeto do Centro Nacional de Acesso ao Currículo Geral (NCAC), um acordo de colaboração entre o Centro de Tecnologias Especiais Aplicadas (CAST) e o Escritório de Programas de Educação Especial (OSEP) do Departamento de Educação dos Estad
Int. braz j urol.. Publicado em: 2020-10
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11. Silences in media coverage of the World Cup in Pernambuco, Brazil
Abstract The 2014 World Cup occurred in Brazil at a time of great political turbulence and change in communications markets. From the standpoint of a person involved in media coverage of this championship, the MA thesis titled Os silêncios, os silenciamentos e a cobertura midiática da Copa do Mundo em Pernambuco (Silences, silencing and media coverage of t
Sociologias. Publicado em: 2020-04
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12. Tacit knowledge in unstructured decision process
Abstract Purpose This paper aims to identify the expressions and flows of tacit knowledge in the unstructured decision process. In this type of process, decision-makers use not only the explicit knowledge but also aspects such as intuition, experience and other forms of tacit knowledge. The research developed a qualitative approach, through a study of multi
RAUSP Manag. J.. Publicado em: 2020-03