5,996 research outputs found
The effect of the environment on the Faber Jackson relation
We investigate the effect of the environment on the Faber Jackson (FJ)
relation, using a sample of 384 nearby elliptical galaxies and estimating
objectively their environment on the typical scale of galaxy clusters. We show
that the intrinsic scatter of the FJ is significantly reduced when ellipticals
in high density environments are compared to ellipticals in low density ones.
This result, which holds on a limited range of overdensities, is likely to
provide an important observational link between scaling relations and formation
mechanisms in galaxies.Comment: accepted by Ap
System dynamics modeling as a circular process: The smart commons approach to impact management
Avaliação quantitativa e qualitativa de alface cultivada em sistema zeopônico.
O objetivo deste trabalho foi avaliar e relacionar os aspectos quantitativos (produção e teores foliares de nutrientes), e os qualitativos (aparência) de alfaces cultivadas em substratos com zeólitas enriquecidas com NPK, bem como verificar avaliar as frequências de compra e de consumo, e os fatores de escolha na aquisição da alface por um grupo específico de consumidores.bitstream/CNPS/11861/1/alface_zeoponico.pd
Produção da matéria seca, extração e utilização de nitrogênio em aveia adubada com uréia em mistura com zeólita.
How can organisations and business models lead to a more sustainable society? A framework from a systematic review of the industry 4.0
The concept of Industry 4.0 has been mainly addressed by the current literature from a technological perspective, overlooking the organisational and even ethical challenges related to this recent paradigm. In order to become '4.0 compliant', an enterprise must adapt its organisation and business approaches, and these changes may lead to a significant impact on sustainability. Therefore, we performed a systematic literature review to investigate the most recent Industry 4.0 research streams by adopting a multi-perspective approach. This analysis led to collect insights on the key traits of an Enterprise 4.0: integration, decomposed hierarchy, flexibility, and autonomy. Each of these keywords involves work environments, business and organisational models, and educational approaches, which constitute the key traits of the novel framework proposed in this study
Teores de potássio no solo, estado nutricional e produção de matéria seca de alfafa em função de doses e frequência da adubação potássica após dois anos de cultivo.
bitstream/item/72342/1/PROCI-2012.00195.pd
Produção de matéria seca e teores de nitrogênio em milho para silagem adubado com uréia misturada a zeólita.
bitstream/CPPSE/17524/1/ComuTecnico77.pd
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