Digital Television
Mostrando 1-12 de 130 artigos, teses e dissertações.
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1. Estimation and Mapping of the Received Power Level of Digital Signals TV Using Spatial Interpolation Methods
Abstract The signal digitization process of the open television system is still in progress, therefore, the study of the digital signal propagation has great importance so that broadcasters can develop and improve the transmission service. The field measurement of digital signal parameters is one of the most reliable means to analyze the signal propagation i
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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2. Scoping review of studies on food marketing in Latin America: Summary of existing evidence and research gaps
ABSTRACT OBJECTIVE To document the evidence about marketing of ultra-processed foods and “non-alcoholic” beverages in Latin America. METHODS We performed a structured search of quantitative and qualitative studies in PubMed, SciELO and LILACS, published between January 2000 and May 2017 and conducted in Latin America. We conducted a quality assessmen
Rev. Saúde Pública. Publicado em: 10/01/2020
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3. Método para el estudio de la producción informativa: medios digitales de Portugal
Abstract The present investigation proposes a method of analysis of information production of digital media. The method employed consists of the analysis of information production, which can be collected from syndication channels in the press media, radio and digital television. The syndication channels of digital media in Portugal has been taken as an examp
Transinformação. Publicado em: 2017-12
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4. CINEMA INDÍGENA DO U-MATIC AO YOUTUBE: SOBERANIA MIDIÁTICA NA ERA DIGITAL
Resumo Esse artigo aborda uma ampla gama de projetos, desde os primeiros desafios epistemológicos das experiências de vídeo na remota Austrália Central na década de 1980 quando surgiu um cinema indígena que interveio tanto no imaginário nacional australiano quanto na ideia de cinema mundial. Aborda, também, o ativismo político que levou à criação
Sociol. Antropol.. Publicado em: 2016-12
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5. Radio-Wave Propagation Model for UHF Band in Different Climatic Conditions with Dyadic Green’s Function
AbstractThis article proposes a deterministic radio propagation model using dyadic Green's function to predict the value of the electric field. Dyadic is offered as an efficient mathematical tool which has symbolic simplicity and robustness, as well as taking account of the anisotropy of the medium. The proposed model is an important contribution for the UHF
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2015-06
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6. Uma proposta de protocolo de codificação de libras para sistemas de tv digital.
Nowadays, the digital television systems do not have specific standards for sign languages (SL). The solution used in TV is to transmit a window with a SL interpreter over the video program. This solution is ineffective in several aspects: it has high operational costs, is dependent of a interpreter, and distract nondeaf viewers. In addition, it does not res
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/08/2012
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7. Proposal of a new approach for BER evaluation of multirate, multiservice OCDMA systems / Proposta de uma nova abordagem para o cálculo da BER de sistemas OCDMA de múltiplas taxas e multiserviços
The continuous evolution of the optical communication technology in the last few years has allowed the growing users demand for higher bandwidth to be satisfactorily attended. This new demand is mainly attributed to the growing popularity of bandwidth-intensive networking applications, such as Internet protocol television (IPTV), high-definition television (
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/08/2012
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8. A TV digital e o setor industrial tecnológico brasileiro / The digital
This study talks about the role of industry, focusing on television manufacturers, and their participation in the development and deployment of Digital TV in Brazil, as the first players in this scenario to point north to the viability of a business model for Digital Television (DTV) and Interactive Digital television (TVDI): the Connected TV and Smart TV. M
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/06/2012
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9. Grid anywhere: an extensible desktop grid computing middleware / Grid Anywhere: Um middleware extensível para grades computacionais desktop
This PhD thesis presents investigations, models and implementations of a computational grid middleware named Grid Anywhere. This platform aims at allowing the build of computational grid systems, which enable the increase of the number of participants as consumers and resource providers. In order to do this, new solutions are presented to manage security pol
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/06/2012
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10. O político nos corpos da política
The study addresses the political body is collected in a corpus of media discourses that deal with politics, defined as the space organization, conduct and administration of the State, while the policy is understood as meaning Landowski (2001) as the sense in act. Politics and policy are the core of this nature documentary research, which aims to deduce the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/05/2012
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11. Entre promessas e a realidade da televisão digital: estratégias da Rede Globo na convergência
Em 02 de dezembro de 2007 o Brasil deu início à nova fase da televisão, caracterizada pela passagem do patamar analógico para o digital. A digitalização marca uma nova idade da televisão, reconfigurada de tal forma que ela re(surge) com novas denominações, como PluriTV, TV expandida, IPTV e tantas outras que não cabe listá-las agora. O que interes
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/03/2012
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12. Um Processo Ágil para Especificação de Requisitos em Programas Interativos com foco em Roteiros de TV
A adição de software aos programas de TV através da implantação do Sistema Brasileiro de TV Digital impulsionou a integração dessas duas grandes indústrias: software e TV. Essas duas linhas de trabalho possuem diferentes pensamentos e formas de trabalhar, contudo, com a chegada da TV Digital estes dois perfis profissionais, comunicação e informáti
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/11/2011