Trata-‐se de uma investigação que visa compreender como é descodificada a Identidade Visual Corporativa, com o intuito de aumentar a eficácia comunicacional do trabalho dos designers ao nível da codificação, considerando o objectivo da empresa ou marca. Com base em 15 casos de estudo e através de quatro questionários, pretende-‐se identificar conotações gráficas de logótipos e da tipografia corporativa, atend...
Applied Physics Letters, 89 ; Nanostructuring of fullerene C60 beam deposited films is achieved by electrochemical reduction in a potassium hydroxide aqueous solution. Alkali fulleride clusters are formed at the electrode, as it is illustrated by cyclic voltammetry, x-ray diffraction, and scanning tunneling microscopy. Fluorescence emission from fluorophore doped fullerene reduced films was investigated by flu...
2005
Although the direct deposition of CVD diamond coatings on ferrous substrates is highly desirable, many technological problems hinder the production of commercial applications, mainly due to a lack of adhesion. Diamond can be grown on such substrates; however, film detachment cannot usually be avoided. Suitable buffer layers are the most commonly used solution to overcome adhesion problems. In the present work, ...
A NiyCuyTi multilayer system is proposed to face the typical problems-related with direct diamond deposition on steel substrates, namely the lack of adhesion and growth rates.Systematic experimental work allowed achieving the best MPCVD parameter set in order to obtain both thin and thick diamond films (5–130 mm) with good morphology and adhesion with low residual stress level.In fact, a thick soft copper...
Diamond films have been prepared by microwave plasma chemical vapour deposition (MPCVD) on high-speed steel substrates pre-coated with an intermediate metal multi-layer system. Wear tests were performed in a micro-abrasion apparatus by rotating ball, using a slurry of diamond abrasive particles in water (sphere-on-flat geometry). The tests were carried out on the bare steel substrate, on the substrate provided ...
Diamond coated steel is considered an important issue in synthetic diamond technology due to the great economical importance of enhancing the wear resistance and surface hardness of commercial Fe based alloys. However, direct diamond coating by Chemical Vapour Deposition (CVD) is rather problematic - adhesion and growth are seriously affected. The use of interlayers is a common approach to minimise the referred...
Duzentos e dezoito amostras de Staphylococcus aureus, isoladas de infecção intramamária de vacas de 44 rebanhos leiteiros, foram classificadas em biótipos de acordo com os testes de produção de estafiloquinase (K), beta-hemolisina (beta ), coagulação do plasma bovino (Pl) e crescimento na presença de cristal violeta (CV). As amostras foram distribuídas em 10 biótipos e 63 delas foram classificadas nas ecovaried...
Este trabalho tem como objetivo analisar o efeito do óxido de níquel sobre as propriedades elétricas do sistema varistor ZnO.Bi2O3.Co2O3.MnO2 . Os sistemas foram sinterizados a 1100ºC, 1150 ºC, 1200 ºC e 1250 ºC, por 1 hora. A caracterização elétrica foi feita por meio de medidas de densidade de corrente em função do campo elétrico aplicado. A caracterização microestrutural foi obtida por meio de difração de ra...
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