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Improving the dynamical behaviour of a laser cutting equipment by using a carbo...

In order to improve the dynamic behaviour of an industrial laser cutting equipment a sandwich solution, using a carbon fibre reinforced polymer (CFRP) and polyester foam core, was implemented to construct its main runway structural frame, which supports the cutting head and major laser beam mirrors and lens. Nowadays, the commercial competiveness of laser cutting equipments is considerable enhanced by their hig...

Desenvolvimento de um processo de microencapsulação baseado em quitosano para p...

Este trabalho foi realizado no âmbito da unidade curricular de Projeto da Licenciatura em Engenharia Biomédica do Instituto Politécnico de Bragança. Teve como principal objetivo desenvolver um processo de microencapsulação para proteção do α-tocoferol, a principal forma da vitamina E. O α-tocoferol é um antioxidante que possui um papel importante na proteção do organismo contra certos tipos de cancro e do envel...

Substituting conventional steel alloys by carbon fibre composites in structural...

In the present work, a finite element (FE) analysis was employed to validate the use of advanced carbon fibre composites as replacement of traditional low-alloy steel in the construction of the main runway frame structure of a laser cutting equipment currently available in the market. This new composite solution was adopted to increase the current laser equipment precision and cutting speed. The main objective ...

Importance of a National arthroplasty register for Identification by medical ex...

alpha-Tocopherol microencapsulation using chitosan and alginate: swelling behav...

Vitamin E is known for its antioxidant activity, particularly for its effective protection against lipid oxidation. Currently, the intake of this important class of bioactive compounds is associated with health benefits. Moreover, due to its antioxidant capacity, vitamin E is frequently added to several foods in order to extend shelf life, mainly by inhibiting lipid oxidation. Vitamin E comprises a set of eight...

α-tocopherol microencapsulation using chitosan and alginate: swelling behaviour...

Vitamin E is known for its antioxidant activity, particularly for its effective protection against lipid oxidation. Currently, the intake of this important class of bioactive compounds is associated with health benefits. Moreover, due to its antioxidant capacity, vitamin E is frequently added to several foods in order to extend shelf life, mainly by inhibiting lipid oxidation. Vitamin E comprises a set of eight...

α-Tocopherol microencapsulation using chitosan and alginate: swelling behaviour...

Runoff and erosion at the micro-plot and slope scale in a small burnt catchment...

Wildfires can have important impacts on hydrological processes and soil erosion in forest catchments, due to the destruction of vegetation cover and changes to soil properties. However, the processes involved are non-linear and not fully understood. This has severely limited the understanding on the impacts of wildfires, especially in the up-scaling from hillslopes to catchments; in consequence, current models ...

Improving the dynamical behaviour of a laser cutting equipment by using a carbo...

In order to improve the dynamic behaviour of an industrial laser cutting equipment a sandwich solution, using a carbon fibre reinforced polymer (CFRP) and polyester foam core, was implemented to construct its main runway structural frame, which supports the cutting head and major laser beam mirrors and lens. Nowadays, the commercial competiveness of laser cutting equipments is considerable enhanced by their hig...

Substituting conventional steel alloys by carbon fibre composites in structural...

In the present work, Finite Element Analysis (FEM) was employed to validate the use of advanced carbon fibre composites as replacement of traditional low-alloy steel in the construction of the main runway frame structure of a laser cutting equipment currently available in the market. This new composite solution was adopted to increase considerably the current laser equipment precision and cutting speed. The mai...