Encontrados 7 documentos, a visualizar página 1 de 1
Mapeamento climático urbano, aplicações à cidade de Bragança
Gonçalves, Artur; Ribeiro, A.C.; Pinto, M.V.; Maia, Filipe; Feliciano, ManuelEsta comunicação descreve o processo de mapeamento climático da cidade de Bragança, como parte do Projecto POCTEP - BIOURB. Este processo partiu da definição de um conjunto de camadas de informação, trabalhadas em Sistemas de Informação Geográfica (SIG), com as quais se definiram características territoriais (morfológicas) e urbanas, com influência sobre o clima local. Estes elementos foram posteriormente class...
Urban climate studies: addressing the role of urban green spaces
Gonçalves, Artur; Ribeiro, A.C.; Maia, Filipe; Pinto, M.V.; Feliciano, ManuelCities present a wide range of climate transformations resulting from changes induced by buildings and other artificial structures, including such effects as the urban heat island (UHI) and the changes in the ventilation patterns. Under these conditions, urban climate analysis is increasingly considered as a necessary activity that should be part of the urban planning practice. Although there has been a wide d...
Biomassa e energia no Nordeste de Portugal
Azevedo, João; Feliciano, Manuel; Tarelho, L.; Lopes, Helena; Fonseca, Felícia; Nunes, Luís; Patrício, Maria do Sameiro; Ribeiro, A.C.A conversão de biomassa lenhosa em energia térmica em Trás-os-Montes é uma prática corrente e relevante do ponto de vista florestal e energético. O aproveitamento desta fonte de energia é feito, contudo, com base em iniciativas individuais, não existindo nenhuma estratégia local, regional ou nacional para a utilização de biomassa para produção de energia de forma integrada, eficiente e sustentada. Com a execu...
Intracellular Ca2+ concentration in the N1E-115 neuronal cell line and its use ...
Rodrigues, J M; Luís, A L; Lobato, J V; Pinto, M V; Faustino, A; Hussain, N Sooraj; Lopes, M A; Veloso, A P; Freitas, M; Geuna, S; Santos, J DEntubulation repair of peripheral nerve injuries has a lengthy history. Several experimental and clinical studies have explored the effectiveness of many biodegradable and non-degradable tubes with or without addition of molecules and cells. The main objective of the present study was to develop an economical and also an easy way for culturing a neural cell line which is capable of growing, differentiating and ...
On the non-relativistic Casimir effect
Cougo-Pinto,M.V.; Farina,C.; Mendes,J.F.M.; Tort,A.C.We compute the Casimir energy for a massive scalar field constrained between two parallel planes (Dirichlet boundary conditions) in order to investigate its non-relativistic limit. Instead of employing the usual relativistic dispersion relation omega(p) = <img SRC="http:/img/fbpe/bjp/v31n1/08eq01.gif">, we use the non-relativistic one, omega(p) = p²/2m. It turns out that the Casimir energy is zero. We include t...
The influence of an external magnetic field on the fermionic Casimir effect
Cougo-Pinto,M.V.; Farina,C.; Tort,A.C.The influence of an external constant uniform magnetic field on the Casimir energy associated with a Dirac field under antiperiodic boundary condition is computed using Schwinger's method. The obtained result shows that the magnetic field enhances the fermionic Casimir energy, in oposition to the bosonic Casimir energy which is inhibited by the magnetic field.
z-function method for repulsive Casimir forces
Cougo-Pinto,M.V.; Farina,C.; Tenorio,A.We compute the Casimir pressure between an unusual pair of parallel plates, namely, a perfectly conducting plate (<FONT FACE="Symbol">e®¥)</font> and an infinitely permeable one (<FONT FACE="Symbol">m®¥</font>) with the generalized <FONT FACE="Symbol">z</font>-function method. The result for this problem, which has been rarely discussed in the literature, is a repulsive Casimir force. The <FONT FACE="Symbol">z<...
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