Zobrazeno 1 - 10
of 131
pro vyhledávání: '"J. P. Nunes"'
Publikováno v:
Planta Daninha, Vol 33, Iss 3, Pp 395-404 (2015)
RESUMOO objetivo deste trabalho foi avaliar os efeitos da temperatura e da luz na germinação de sementes de capim-arroz, em diferentes períodos de armazenamento após a dispersão. O trabalho foi dividido em dois estudos: no primeiro avaliou-se o
Externí odkaz:
https://doaj.org/article/2b37ec090a534bb1833235d9f4281a44
Autor:
D. Hawtree, J. P. Nunes, J. J. Keizer, R. Jacinto, J. Santos, M. E. Rial-Rivas, A.-K. Boulet, F. Tavares-Wahren, K.-H. Feger
Publikováno v:
Hydrology and Earth System Sciences, Vol 19, Iss 7, Pp 3033-3045 (2015)
The north-central region of Portugal has undergone significant land cover change since the early 1900s, with large-scale replacement of natural vegetation types with plantation forests. This transition consisted of an initial conversion primarily to
Externí odkaz:
https://doaj.org/article/a31aeaf8a07a4b628ff863336f63f94f
Publikováno v:
Hydrology and Earth System Sciences, Vol 17, Iss 10, Pp 3741-3758 (2013)
This study evaluated the performance of the WRF-ARW (Weather Research and Forecasting with Advanced Research) weather prediction model in simulating the spatial and temporal patterns of an extreme rainfall period over a complex orographic region in n
Externí odkaz:
https://doaj.org/article/bff0c7adc809403eabc9c8eaa5fc0f1c
Autor:
Antunes, P., da Costa, J. M. Nunes
The binary bracket of a Courant algebroid structure on $(E,\langle \cdot,\cdot \rangle)$ can be extended to a $n$-ary bracket on $\Gamma(E)$, yielding a multi-Courant algebroid. These $n$-ary brackets form a Poisson algebra and were defined, in an al
Externí odkaz:
http://arxiv.org/abs/2206.10231
Autor:
Leonel J. R. Nunes
Publikováno v:
AIMS Energy, Vol 12, Iss 1, Pp 45-61 (2024)
This study evaluates the logistics cost associated with transporting Wood Pellets (WP) and Torrefied Biomass Pellets (TBP) from Aveiro, Portugal's principal WP exporting port, to Northern European destinations. With increasing emphasis on sustainable
Externí odkaz:
https://doaj.org/article/36cc5f90dc8042ee84c846f0957fd7f6
Autor:
Isabel A. C. Fernandes, J. P. Nunes, Raquel S. V. Ferreira, Luísa M. G. P. Pereira, Diana C. S. Vieira, J. J. Keizer
Publikováno v:
Territorium: Revista Portuguesa de riscos, prevenção e segurança, Iss 17 (2010)
O presente artigo apresenta resultados preliminares da monitorização de escorrência e erosão do solo após incêndio, numa micro-bacia hidrográfica no centro de Portugal. Os dados recolhidos permitem avaliar os diferentes processos que governam
Externí odkaz:
https://doaj.org/article/e46061ce2d964d66b1322ce0b4392f5a
Publikováno v:
Territorium: Revista Portuguesa de riscos, prevenção e segurança, Iss 17 (2010)
O presente trabalho tem como objectivo avaliar a adequabilidade de dois modelos empíricos de erosão, para o mapeamento do risco de erosão pós-fogo à escala da encosta, com base em Sistemas de Informação Geográfica. Foi desenvolvido no âmbito
Externí odkaz:
https://doaj.org/article/34406430b81c4dae910f29931877c4dd
Publikováno v:
Fire, Vol 7, Iss 8, p 263 (2024)
Rural fires have been a constant concern, with most being associated with land abandonment. However, some fires occur due to negligent attitudes towards fire, which is often used to remove agroforestry leftovers. In addition to the fire risk, this bu
Externí odkaz:
https://doaj.org/article/3c3037f3b9e045bb85e3ea66af2ad0e9
Publikováno v:
Energies, Vol 17, Iss 14, p 3405 (2024)
Rising fossil fuel costs and environmental concerns are driving the search for new energy sources, particularly renewable energy. Among these sources, solar photovoltaic (PV) is the most promising in southern European countries, mainly through the us
Externí odkaz:
https://doaj.org/article/ead27ad11c814648bd831c3d45fe84a2
Autor:
Leonel J. R. Nunes, Joana Nogueira, João B. Rodrigues, João C. Azevedo, Emanuel Oliveira, Tomás de Figueiredo, Juan Picos
Publikováno v:
AgriEngineering, Vol 5, Iss 2, Pp 1039-1050 (2023)
Throughout history, the use of animals for agricultural and forestry work has been closely associated with human societies, with multiple references to animal power being utilized for various tasks since the Neolithic period. However, the advent of i
Externí odkaz:
https://doaj.org/article/16b50a0e0ed74a7f928eb2cd5c8f78a3