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480 research outcomes, page 1 of 48
  • publication . Part of book or chapter of book . 2021
    Open Access
    Authors:
    Crismeire Isbaex; Ana Margarida Coelho;
    Persistent Identifiers
    Publisher: IntechOpen
    Project: FCT | UIDB/05183/2020 (UIDB/05183/2020)

    <jats:p>Mapping land-cover/land-use (LCLU) and estimating forest biomass using satellite images is a challenge given the diversity of sensors available and the heterogeneity of forests. Copernicus program served by the Sentinel satellites family and the Google Earth Eng...

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  • publication . Article . 2015
    Open Access
    Authors:
    Sónia Cristina; John Icely; Priscila Goela; T.A. DelValls; Alice Newton;
    Persistent Identifiers
    Publisher: Elsevier BV
    Project: EC | DEVOTES (308392), EC | AquaSpace (633476), FCT | SFRH/BD/78356/2011 (SFRH/BD/78356/2011), EC | AQUA-USERS (607325)

    Abstract The exclusive economic zones (EEZ) of coastal countries are coming under increasing pressure from various economic sectors such as fishing, aquaculture, shipping and energy production. In Europe, there is a policy to expand the maritime economic sector without ...

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  • publication . Article . 2014
    Open Access English
    Authors:
    Alfredo C. Pereira Júnior; Sofia L. J. Oliveira; José M. C. Pereira; Maria Antónia Amaral Turkman;
    Persistent Identifiers
    Publisher: Public Library of Science (PLoS)
    Project: FCT | PEst-OE/MAT/UI0006/2011 (PEst-OE/MAT/UI0006/2011), FCT | SFRH/BPD/48090/2008 (SFRH/BPD/48090/2008), FCT | PTDC/MAT/118335/2010 (PTDC/MAT/118335/2010), FCT | SFRH/BD/44846/2008 (SFRH/BD/44846/2008)

    Covering almost a quarter of Brazil, the Cerrado is the world’s most biologically rich tropical savanna. Fire is an integral part of the Cerrado but current land use and agricultural practices have been changing fire regimes, with undesirable consequences for the preser...

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  • publication . Article . Other literature type . 2015
    Open Access English
    Authors:
    Thomas Panagopoulos; Jorge Mendes de Jesus; Jiftah Ben-Asher;
    Persistent Identifiers
    Publisher: MDPI AG
    Project: FCT | SFRH/BD/8303/2002 (SFRH/BD/8303/2002)

    Geostatistical tools were used to estimate spatial relations between wheat yield and soil parameters under organic farming field conditions. Thematic maps of each factor were created as raster images in R software using kriging. The Geographic Resources Analysis Support...

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  • publication . Doctoral thesis . Other literature type . 2015
    Open Access English
    Authors:
    Pinto Rebelo, J.L.;
    Project: FCT | SFRH/BD/69564/2010 (SFRH/BD/69564/2010)

    Robots are particularly well suited for executing tasks that take place in locations which are too dangerous or inaccessible to human operators. For robot manipulators to execute complex activities in unknown, unstructured environments, despite the recent increases in c...

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  • publication . Conference object . 2019
    Open Access
    Authors:
    Rolando Barradas; José Alberto Lencastre; Salviano Soares; António Valente;
    Persistent Identifiers
    Project: FCT | UID/EEA/50014/2013 (UID/EEA/50014/2013), FCT | UID/CEC/00127/2019 (UID/CEC/00127/2019), FCT | UID/CED/01661/2019 (UID/CED/01661/2019)

    This work is partially financed by the ERDF-European Regional Development Fund through the Operational Programme for Competitiveness and Internationalisation - COMPETE 2020 Program within project POCI-01-0145-FEDER-006961, and by National Funds through the FCT - Fundaçã...

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  • publication . Preprint . Article . 2020
    Open Access English
    Authors:
    S. Carvalho; S. Gomes; Teresa Barata; A. M. Lourenço; Nuno Peixinho;
    Persistent Identifiers
    Project: FCT | SFRH/BD/107894/2015 (SFRH/BD/107894/2015), FCT | UID/MAT/00324/2019 (UID/MAT/00324/2019), FCT | UID/Multi/00611/2019 (UID/Multi/00611/2019)

    Comment: submitted to Astronomy and Computing

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  • publication . Article . Other literature type . 2019
    Open Access English
    Authors:
    dos Santos, Andreia; Pinela, Nuno; Alves, Pedro; Santos, Rodrigo; Farinha, Ricardo; Fortunato, Elvira; Martins, Rodrigo; Águas, Hugo; Igreja, Rui;
    Persistent Identifiers
    Project: FCT | PD/BD/105876/2014 (PD/BD/105876/2014), FCT | UID/CTM/50025/2013 (UID/CTM/50025/2013)

    10&minus

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  • publication . Other literature type . Article . 2014
    Open Access
    Authors:
    Rodrigues, A.; Marcal, A.R.S.; Furlan, D.; Ballester, M.V.; Cunha, M.;
    Persistent Identifiers
    Publisher: Informa UK Limited
    Project: FCT | SFRH/BD/62189/2009 (SFRH/BD/62189/2009)

    Earth Observation Satellite (EOS) data have a great potential for land cover mapping, which is mostly based on high resolution images. However, in tropical areas the use of these images is seriously limited due to the presence of clouds. This paper evaluates the ability...

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  • publication . Other literature type . Article . 2012
    Open Access
    Authors:
    Hugo R Oliveira; Michael G Campana; Huw Jones; Harriet V Hunt; Fiona Leigh; David I Redhouse; Diane L Lister; Martin K Jones;
    Persistent Identifiers
    Publisher: Public Library of Science (PLoS)
    Project: FCT | SFRH/BD/21748/2005 (SFRH/BD/21748/2005)

    The geographic distribution of genetic diversity and the population structure of tetraploid wheat landraces in the Mediterranean basin has received relatively little attention. This is complicated by the lack of consensus concerning the taxonomy of tetraploid wheats and...

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480 research outcomes, page 1 of 48