Radio Frequency Efficient Use
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Estudo das propriedades estruturais e elÃtricas das granadas ferrimagnÃticas GdIGXYIG1-X e suas aplicaÃÃes em componentes de microondas. / Study of the strutural and electric properties of garnets ferrimagnetc GdIGXYIG1-X and its aplications in componentes of microwaves.
Due to a fast progress in the development of communication systems, the dielectric and magnetic ceramics (ferrites) have become attractive to be used in devices. Although the ferrites of the spinel type were the first material used in the microwave range, garnets have smaller dielectric losses and, therefore, are chosen for many applications. High demands fo
Publicado em: 2008
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2. MÉTODOS PARA A AVALIAÇÃO DA EFICIÊNCIA DE UTILIZAÇÃO DO ESPECTRO RADIOELÉTRICO / METHODS FOR ASSESSMENT OF THE RADIO SPECTRUM USE EFFICIENCY
In this work a new method for the assessment of the spectrum use efficiency is proposed to be applied to point-area, including broadcasting, and point-to-point telecommunications systems. The proposed definition of the efficiency index is based in technical aspects, but other subjects that affect the determination of a telecommunications system efficiency, a
Publicado em: 2006
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3. TECNOLOGIA RFID APLICADA À LOGÍSTICA / RFID TECHNOLOGY APPLIED TO LOGISTICS
The growing competitiveness among supply chains, originated from a global scenery where the market demands a strong performance and flexibility regarding quality, periods and costs of the products from the productive chains, emphasizes the importance of the logistic participation as a promoting agent of strategic intelligence among the several disciplines of
Publicado em: 2005