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  1. 1

    Urban Cellular Planning Optimisation of Multi-service Enhanced UMTS Based in Economic Issues

    Publicação
    por Cabral, Orlando Manuel Brito
    Outros Autores: Velez, Fernando J.; Franco, Cátia; Rei, Ricardo
    Origem: uBibliorum
    Results for Enhanced UMTS (E-UMTS) cost/revenue optimisation are obtained, as a function of the coverage distance, R. E-UMTS traffic generation and activity models are described and characterised in an urban scenario based on population and service penetration values. By using a System Level Simulator results were obtained for blocking and handover failure probabilities. Models for the supported fraction of active users and for the supported throughput, as a function of active users, were obtained. When one amplifier is used, the maximum throughput per BS is around 600kb/s. However, it achieves values up to 2000kb/s when three amplifiers per BS are considered. Generally, the profit in percentage is a decreasing function with R. The use of three amplifiers per BS is strongly advised in order to get cheaper communications, with prices that vary from 0.016 to 0.07 €/min, for R=250 and 1075m, respectively.
    2006 documento de conferência Portugal acesso aberto
  2. 2

    Chefs’ perception about healthy eating concept and their influence on people’s wellbeing

    Publicação
    por Manso, Nina Vigon
    Outros Autores: Moura, Ana Pinto de
    The culinary arts associated with entertainment represents a growing interest amongst consumers, empowering the role of Celebrity Chefs’ (CC) in the society. This investigation aims to evaluate the CC perception of healthy eating and their influence on population’s well-being in a food-related context.
    2017 documento de conferência Portugal acesso restrito
  3. 3

    A "permanência" e a retomada da questão nordeste diante da globalização.

    Publicação
    por DINIZ, Elenilze Josefa.
    Origem: Oasisbr
    Submitted by Deyse Queiroz (deysequeirozz@hotmail.com) on 2019-04-05T09:58:29Z No. of bitstreams: 1 ELENILZE JOSEFA DINIZ - DISSERTAÇÃO PPGERR 1999..pdf: 6074408 bytes, checksum: a1b8cb7bb8d1af09548f7b12c3c920c1 (MD5)
    1999 dissertação de mestrado Brasil acesso aberto