19 documents found, page 1 of 2
Impact of cannabidiol and delta-9-tetrahydrocannabinol in the angiogenic role o...
Alves, P.; Amaral, C.; Teixeira, N.; Correia-da-Silva, G.Background: Cannabis is the most consumed illicit drug in Europe. Alongside, the medicinal use of cannabinoids is rising. Indeed, a formulation that combines the major phytocannabinoids, cannabidiol (CBD) and delta-9-tetrahydrocannabinol (THC) in a 1:1 proportion (Sativex®), is already available for the management of multiple sclerosis. Nevertheless, a lot remains unknown in relation to cannabinoid’s impact in ...
Thermal Performance of Multifunctional Facade Solution Containing Phase Change ...
Amaral, C.; Gomez, F.; Moreira, M.; Silva, T.; Vicente, R.This work focuses on the development and analysis of a new multifunctional facade panel incorporating PCM in foam layers. The thermal performance was analysed recurring to a hotbox heat flux meter method to determine the thermal transmittance (U-value) and the main findings are presented. The experimental setup was based on the steady-state approach, using climatic chambers, assuring a stable thermal environmen...
Outline of the incorporation of phase change materials in radiant systems
Moreira, M.; Dias-de-Oliveira, J.; Amaral, C.; Neto, F.; Silva, T.This article presents an outline about the incorporation of phase change materials (PCM) in radiant systems, their incorporation techniques, challenges, advantages, and disadvantages. The PCM incorporation into building solutions has been studied over the last 40 years to improve the energy efficiency and to solve the fast-growing problem of energy consumption in housing. The use and incorporation of PCM in bui...
Numerical modelling of radiant systems and phase change materials in building a...
Moreira, M.; Silva, T.; Dias-de-Oliveira, J.; Neto, F.; Amaral, C.As a result of increasing environmental and economic concerns, the demand for more efficient energetic systems has augmented, leading to a greater focus on investigating new solutions. The latest developments in the integration of radiant systems in buildings have shown promising results, being a feasible and more efficient technology. In this regard, an analysis of the current state of the radiant system's dev...
Experimental and numerical analysis of the thermal performance of polyurethane ...
Amaral, C.; Silva, T.; Mohseni, F.; Amaral, J.S.; Amaral, V.S.; Marques, P.A.A.P.; Barros-Timmons, A.; Vicente, R.The potential thermal regulation effect of rigid polyurethane (RPU) foams can be enhanced by the incorporation of phase change materials (PCM). The main goal of the present work is to evaluate the thermal characteristics of RPU panels using two different types of PCM (a commercial one and another based on paraffin and calcium carbonate) and to quantify their potential as thermal regulators of indoor spaces. The...
Development of structural layers PVC incorporating phase change materials for t...
Amaral, C.; Gama, N.V.; Mohseni, F.; Amaral, J.S.; Amaral, V.S.; Marques, P.A.A.P.; Barros-Timmons, A.; Vicente, R.The use of poly(vinyl chloride) (PVC) structural layers incorporating phase change materials (PCM) for latent heat thermal energy storage (LHTES) has become more attractive in the recent years compared to other supporting materials. In this study, PVC layers with different types of PCM were prepared using blending and compression moulding methods. Two types of synthesized PCM, one based on paraffin and calcium ...
Gastroenteropancreatic Neuroendocrine Neoplasia Characterization in Portugal: R...
Santos, A.; Vinagre, J.; Soares, P.; Claro, I.; Sanches, A.; Gomes, L.; Fernandes, I.; Catarino, A.; Preto, J.; Pereira, B.; Marques, A.; Rodrigues, F.Background: The incidence of gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) has been increasing in the last five decades, but there is no large-scale data regarding these tumours in Portugal. We conducted a cross-sectional, multicentric study in main Portuguese centers to evaluate the clinical, pathological, and therapeutic profile of GEP-NENs. Methods: From November, 2012, to July, 2014, data from ...
Phase change materials and carbon nanostructures for thermal energy storage: a ...
Amaral, C.; Vicente, R.; Marques, P. A. A. P.; Barros-Timmons, A.The high thermal conductivity of carbon based nanostructures (CNs) has been recognized appropriate to be integrated into phase change materials (PCMs) to enhance the overall thermal properties of the obtained nanocomposites. The equilibrium of the possibility to enhance the thermal conductivity of the PCMs and the latent heat capcity are the key for their ability to store or dissipate a large amount of energy i...
Thermal characterization of polyurethane foams with phase change material
Amaral, C.; Vicente, R.; Eisenblätter, J.; Marques, P. A. A. P.Taking the joint advantages of the thermal insulation capacity of polyurethane foams (PU) and the thermal energy storage capacity of phase change materials (PCMs), it is possible to produce PU composite foams that can be incorporated as a functional layer into buildings components, designed as latent heat thermal energy storage systems (LHTES), that improve the thermal comfort and the energy consumption of buil...
Combined use of Wallerstein and Zygosaccharomyces bailii modified differential ...
Vilela, A.; Schuller, Dorit Elisabeth; Amaral, C.; Côrte-Real, Manuela; Mendes-Faia, A.The level of acetic acid, the main component of volatile acidity, is critical for wine quality. Winemakers have been using a refermentation process to lower the concentration of acetic acid of wines with high volatile acidity, whichconsistsinmixingtheacidicwinewithfreshlycrushedgrapesormarcsinaproportionofnomorethan 20-30% (v/v). Though this process implies low costs it harbors the risk of unexpected and detrim...