Encontrados 114 documentos, a visualizar página 1 de 12
Viability of wall-embedded tag antenna for ultra-wideband real-time suitcase lo...
Zaric, A.; Matos, V. S.; Costa, J. R.; Fernandes, C. A.WOS:000335152600007 (Nº de Acesso Web of Science) ; Viability of a conformal single-layer monopole antenna is studied for a wall-embedded tag in an ultra-wideband (UWB) suitcase localisation application based on impulse radio UWB. The performance of the embedded antenna is simulated and confirmed experimentally in real-time localisation (RTL) experiments carried out in a cluttered laboratory environment. Evalu...
Malária Grave — Um Caso Clínico
Vale, P.; Varandas, L.; Valente, R.; Fernandes, I.; Vasconcelos, C.; Gomes, C.Descreve-se um caso de malária grave por Plasmodium falciparum numa criança de raça negra, de 5 anos de idade, residente em Angola até 2 semanas antes do internamento. Apesar da terapêutica com quinino i.v. o quadro evoluiu com falência multiorgânica, nomeadamente coma, insuficiência renal, necrose hepática, diátese hemorrágica e rabdomiólise. Foi necessário instituir ventilação mecânica e na terapêutica de sup...
Guest editorial for the special issue on antennas and propagation at mm- and su...
Liu, Duxian; Hirokawa, Jiro; Costa, Jorge R.; Fernandes, Carlos A.; Sauleau, RonanWOS:000319826300001 (Nº de Acesso Web of Science) ; The 43 papers in this special issue provide an overview of recent advances and emerging applications in millimeter and sub-millimeter waves, especially beyond 60 GHz up to terahertz, with strong focus towards practical implementable solutions.
Antitumor activity of hierridin B, a cyanobacterial secondary metabolite found ...
Leão, Pedro N.; Costa, Margarida; Ramos, Vitor; Pereira, Alban R.; Fernandes, Virginia C.; Domingues, Valentina F.; Gerwick, William H.Cyanobacteria are widely recognized as a valuable source of bioactive metabolites. The majority of such compounds have been isolated from so-called complex cyanobacteria, such as filamentous or colonial forms, which usually display a larger number of biosynthetic gene clusters in their genomes, when compared to free-living unicellular forms. Nevertheless, picocyanobacteria are also known to have potential to pr...
Antitumor activity of hierridin B, a cyanobacterial secondary metabolite found ...
Leão, Pedro N.; Costa, Margarida; Ramos, Vitor; Pereira, Alban R.; Fernandes, Virgínia C.; Domingues, Valentina F.; Gerwick, William H.Cyanobacteria are widely recognized as a valuable source of bioactive metabolites. The majority of such compounds have been isolated from so-called complex cyanobacteria, such as filamentous or colonial forms, which usually display a larger number of biosynthetic gene clusters in their genomes, when compared to free-living unicellular forms. Nevertheless, picocyanobacteria are also known to have potential to pr...
New biotextiles for tissue engineering : development, characterization and in v...
Almeida, L. R.; Martins, A. R.; Fernandes, E. M.; Oliveira, Mariana B.; Correlo, V. M.; Pashkuleva, I.; Marques, A. P.; Ribeiro, Ana S.This work proposes biodegradable textile-based structures for tissue engineering applications. We describe the use of two polymers, polybutylene succinate (PBS) proposed as a viable multifilamentand silk fibroin (SF), to produce fibre-based finely tuned porous architectures by weft knitting. PBS is here proposed as a viable extruded multifilament fibre to be processed by a textile-based technology. A comparativ...
Método semi-automático em MatLab para calcular o coeficiente de dispersão de er...
Curralo, Ana; Pereira, Ana I.; Lima, R.; Fernandes, Carla S.O sangue é um fluido fisiológico de elevada importância para o normal funcionamento do organismo humano pois desempenha funções essenciais à vida. Um ser humano possui cerca de 5 litros de volume sanguíneo no organismo onde, aproximadamente, metade desse volume é composto por eritrócitos e estes influenciam fortemente as propriedades do escoamento sanguíneo. A microcirculação tem uma função muito importante na ...
Knowledge-based entrepreneurship and employment growth in Portugal
Mamede, R.; Fernandes, T.In this paper we try to assess the direct impact of knowledge-based entrepreneurship (understood as the creation of new firms that intensively rely on more educated workers) on net changes in employment at both the economy and the industry levels. Based on a descriptive analysis, we show that new knowledge-based firms (KBF) differentiate themselves from other firms (new or not new) by having a positive direct c...
Residual granitic soil improvement for rammed earth construction
Cristelo, R.; Roma, R.; Fernandes, L.; Miranda, Tiago F. S.; Oliveira, Daniel V.; Silva, Rui André Martins daThis paper describes the research developed to evaluate the performance of stabilised residual granitic soil from the north region of Portugal. It is part of a research project designed to investigate the possibility of using this soil for rammed earth construction. Since its reduced plasticity makes the use of lime less effective, and the increasing environmental concerns with cement production can no longer b...
Analysis of a stand-alone residential PEMFC Power system with sodium borohydrid...
Pinto, P. J. R.; Fernandes, Vitor R.; Pinto, A. M. F. R.; Rangel, C. M.Catalytic hydrolysis of sodium borohydride (NaBH4) has been investigated as a method to generate hydrogen for fuel cell applications. The high purity of the generated hydrogen makes this process an ideal source of hydrogen for polymer electrolyte membrane fuel cells (PEMFCs). In this paper, the possibility of using a NaBH4-based hydrogen generator with a PEMFC for stand-alone residential use is examined. A comp...
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