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2,487 Research products, page 1 of 249

  • Energy Research
  • Open Access
  • Fundação para a Ciência e a Tecnologia, I.P.

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  • Open Access English
    Authors: 
    Machado, N.; Burns, T. R.;
    Publisher: Programa de Pós-Graduação em Sociologia e Direito
    Country: Portugal
    Project: FCT | PEst-OE/SADG/UI3126/2013 (PEst-OE/SADG/UI3126/2013)

    This paper argues that sustainable development in thinking and in practices is the beginning of a revolution, a major societal paradigm shift, which eventually will match the industrial revolution in transforming social, economic, and cultural conditions. The first part...

  • Publication . Article . Other literature type . 2020
    Open Access
    Authors: 
    Sofia Ferreira; Rui Pedro Gomes Pereira; S. A. Wahl; Isabel Rocha;
    Publisher: Wiley
    Country: Portugal
    Project: FCT | PD/BD/52366/2013 (PD/BD/52366/2013), EC | DD-DeCaF (686070)

    The global market of butanol is increasing due to its growing applications as solvent, flavoring agent and chemical precursor of several other compounds. Recently, the superior properties of n-butanol as a biofuel over ethanol have stimulated even more interest. (Bio)bu...

  • Open Access English
    Authors: 
    Roberto Abuter; António Amorim; M. Bauböck; Frederick K. Baganoff; Jean-Phillipe Berger; Hope Boyce; H. Bonnet; Wolfgang Brandner; Yann Clénet; Ric Davies; +74 more
    Publisher: EDP Sciences
    Countries: France, United States, Netherlands
    Project: FCT | SFRH/BSAB/142940/2018 (SFRH/BSAB/142940/2018), EC | Hot Milk (865637), FCT | UIDB/00099/2020 (UIDB/00099/2020), NWO | Genes for Seed Quality (2300149325)

    We report the time-resolved spectral analysis of a bright near-infrared and moderate X-ray flare of Sgr A*. We obtained light curves in the $M$-, $K$-, and $H$-bands in the mid- and near-infrared and in the $2-8~\mathrm{keV}$ and $2-70~\mathrm{keV}$ bands in the X-ray. ...

  • Open Access English
    Authors: 
    Thierry Cazenave; Simão Correia; Flávio Dickstein; Fred B. Weissler;
    Publisher: HAL CCSD
    Country: France
    Project: FCT | SFRH/BD/96399/2013 (SFRH/BD/96399/2013)

    International audience; In this paper we consider the nonlinear Schr\"o\-din\-ger equation $i u_t +\Delta u +\kappa |u|^\alpha u=0$. We prove that if $\alpha \frac {2} {N}$ and $\kappa \in {\mathbb C}$, we improve the existing low energy scattering results in dimensions...

  • Open Access English
    Authors: 
    Marija Vranic; Thomas Grismayer; José Luís Martins; Ricardo Fonseca; L. O. Silva;
    Publisher: AIP Publishing
    Country: Portugal
    Project: EC | ACCELERATES (267841), FCT | SFRH/BD/39523/2007 (SFRH/BD/39523/2007), FCT | PTDC/FIS/111720/2009 (PTDC/FIS/111720/2009), FCT | SFRH/BD/62137/2009 (SFRH/BD/62137/2009)

    We focus our analysis in the properties of an electron beam during/after collision with an intense pulse. The additional energy spread introduced by the stochastic nature of QED emission can be balanced by the average energy loss leading to overall energy spread reducti...

  • Publication . Other literature type . Preprint . Article . 2018
    Open Access
    Authors: 
    Luis Miguel Fonseca; José Pedro Domingues; M.T. Pereira; Florinda Martins; Dominik Zimon;
    Publisher: MDPI AG
    Country: Portugal
    Project: FCT | UID/EMS/0615/2016 (UID/EMS/0615/2016), FCT | SFRH/BPD/103322/2014 (SFRH/BPD/103322/2014)

    The move towards a new Circular Economy (CE) economic model has been advocated and supported in Portugal, however, there is limited research on this topic. To address this gap, a quantitative research based on an online survey was carried out among 99 Portuguese organiz...

  • Open Access English
    Authors: 
    Emanuelle L. P. de Faria; Rafael S do Carmo; Ana Filipa M. Cláudio; Carmen S. R. Freire; Mara G. Freire; Armando J. D. Silvestre;
    Publisher: MDPI AG
    Project: FCT | PTDC/AGR-TEC/1191/2014 (PTDC/AGR-TEC/1191/2014), EC | IGYPURTECH (337753), FCT | SFRH/BPD/110825/2015 (SFRH/BPD/110825/2015)

    In recent years a high demand for natural ingredients with nutraceutical properties has been witnessed, for which the development of more environmentally-friendly and cost-efficient extraction solvents and methods play a primary role. In this perspective, in this work, ...

  • Open Access English
    Authors: 
    Mohammad Kheradmand; José Aguiar; Miguel Azenha;
    Publisher: Springer Nature
    Country: Portugal
    Project: FCT | PTDC/ECM/102154/2008 (PTDC/ECM/102154/2008)

    The use of phase change materials (PCMs) for the building sector is increasingly attracting attention from researchers and practitioners. Several research studies forwarded the possibility of incorporating microencapsulated PCM in plastering mortars for building facades...

  • Open Access English
    Authors: 
    N. Vitorino; João C.C. Abrantes; Jorge R. Frade;
    Publisher: ELSEVIER SCI LTD
    Country: Portugal
    Project: FCT | PTDC/CTM-ENE/2073/2012 (PTDC/CTM-ENE/2073/2012), FCT | PEst-C/CTM/LA0011/2013 (PEst-C/CTM/LA0011/2013)

    Aqueous suspensions of graphite were shape stabilized by the additions of collagen and characterized as phase change materials for cold storage with enhanced thermal conductivity. Collagen addition stabilized the graphite suspensions in aqueous media without requirement...

  • Publication . Article . Other literature type . 2018
    Open Access English
    Authors: 
    Cristina M. R. Rocha; Zlatina Genisheva; Pedro Ferreira-Santos; Rui Miguel Martins Rodrigues; António A. Vicente; José A. Teixeira; Ricardo Nuno Correia Pereira;
    Publisher: Elsevier
    Country: Portugal
    Project: FCT | SFRH/BPD/81887/2011 (SFRH/BPD/81887/2011), FCT | SFRH/BD/110723/2015 (SFRH/BD/110723/2015), FCT | UID/BIO/04469/2013 (UID/BIO/04469/2013)

    This review provides an overview of recent research on electrotechnologies applied to the valorization of bioresources. Following a comprehensive summary of the current status of the application of well-known electric-based processing technologies, such as pulsed electr...