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3D电视在有线电视网中的传送方式
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作者 李卫权 《中国有线电视》 2012年第12期1386-1388,共3页
介绍3D技术原理与分类、有关的数字电视DVB标准中的PSI/SI规范,以及利用有线电视系统平台传输3D试验频道至用户端的主要技术规范和系统实现方式。
关键词 3D电视技术 视频技术 DVB标准 Psi si规范
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Scientific Initiation: Meanings and Peculiarities of Public Policy in Brazil
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作者 Marilene Batista da Cruz Nascimento Marilia Costa Morosini Josevania Teixeira Guedes 《Sociology Study》 2014年第8期700-707,共8页
This paper aims to analyze the Scientific Initiation (SI) as public policy of higher education in Brazil, from meanings and peculiarities of this device in the undergraduate academic's formation, created jointly wi... This paper aims to analyze the Scientific Initiation (SI) as public policy of higher education in Brazil, from meanings and peculiarities of this device in the undergraduate academic's formation, created jointly with the National Research Council in 1951 currently National Council for Scientific and Technological Development (CNPq). This corporation emerged from the recognition of the strategic importance of science and necessity of institutionalization of encouragement and fostering research. This is a theoretical bibliographical study and documentary that evidences the contributions and limits of SI while political science training should be part of academic activities to provide the development and support of investigative spirit. The concept of SI was established in universities as an activity to be developed in order to encourage the student to become familiar with scientific practices. The study concluded that SI is based on institutionalized norms within higher education to foster the development of science, and it is considered as an important strategy of expansion of graduate studies in Brazil. 展开更多
关键词 Public policy Scientific Initiation si higher education
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