953 resultados para Attribute inspection


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Dissertação de mestrado integrado em Engenharia Eletrónica Industrial e Computadores

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Dissertação de mestrado integrado em Engenharia Mecânica

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Dissertação de mestrado integrado em Materials Engineering

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COST Action TU1406 aims to address the European economic and societal needs by standardizing the condition assessment and maintenance level of roadway bridges. Currently, bridge quality control plans vary from country to country and, in some cases, within the same country. This therefore urges the establishment of a European guideline to surpass the lack of a standard methodology to assess bridge condition and to define quality control plans for roadway bridges. Such a guideline will comprise specific recommendations for assessing performance indicators as well as for the definition of performance goals, bringing together different stakeholders (e.g. universities, institutes, operators, consultants and owners) from various scientific disciplines (e.g. on-site testing, visual inspection, structural engineering, sustainability, etc.) in order to establish a common transnational language. COST Action TU1406 Workshops aim to facilitate the exchange of ideas and experiences between active researchers and practitioners as well as to stimulate discussions on new and emerging issues in line with the conference topics. This first Workshop essentially focuses on WG1 issues, namely, intends to address performance indicators, how these are assessed (e.g. visual inspection, nondestructive tests and monitoring systems), with what frequency and what values are generally obtained. The main outcomes, given in this eBook, were really important, not only for WG1 developments, but also for all the other WGs and for the Action itself.

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The design of self-standing multilayered structures based on biopolymers has been attracting increasing interest due to their potential in the biomedical field. However, their use has been limited due to their gel-like properties. Herein, we report the combination of covalent and ionic cross-linking, using natural and non-cytotoxic cross-linkers, such as genipin and calcium chloride (CaCl2). Combining both cross-linking types the mechanical properties of the multilayers increased and the water uptake ability decreased. The ionic cross-linking of multilayered chitosan (CHI)â alginate (ALG) films led to freestanding membranes with multiple interesting properties, such as: improved mechanical strength, calcium-induced adhesion and shape memory ability. The use of CaCl2 also offered the possibility of reversibly switching all of these properties by simple immersion in a chelate solution. We attribute the switch-ability of the mechanical properties, shape memory ability and the propensity for induced-adhesion to the ionic cross-linking of the multilayers. These findings suggested the potential of the developed polysaccharide freestanding membranes in a plethora of research fields, including in biomedical and biotechnological fields.

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Dissertação de mestrado em Engenharia e Gestão da Qualidade

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Dissertação de mestrado integrado em Materials Engineering

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Dissertação de mestrado integrado em Engenharia de Materiais

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OBJECTIVE: To make individual assessments using automated quantification methodology in order to screen for perfusion abnormalities in cerebral SPECT examinations among a sample of subjects with OCD. METHODS: Statistical parametric mapping (SPM) was used to compare 26 brain SPECT images from patients with OCD individually with an image bank of 32 normal subjects, using the statistical threshold of p < 0.05 (corrected for multiple comparisons at the level of individual voxels or clusters). The maps were analyzed, and regions presenting voxels that remained above this threshold were sought. RESULTS: Six patients from a sample of 26 OCD images showed abnormalities at cluster or voxel level, considering the criteria described above, which represented 23.07%. However, seven images from the normal group of 32 were also indicated as cases of perfusional abnormality, representing 21.8% of the sample. CONCLUSION: The automated quantification method was not considered to be a useful tool for clinical practice, for analyses complementary to visual inspection.

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Dissertação de mestrado Integrado em Engenharia Civil

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Dissertação de mestrado em Direito Tributário e Fiscal

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Dissertação de mestrado em Direito Tributário e Fiscal

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Este artigo tem como objetivo analisar as percepções sobre enfrentamento das mudanças climáticas dos jornalistas que participaram do processo de produção de notícias sobre este assunto no jornal Gazeta do Povo, o de maior circulação no estado do Paraná, sul do Brasil, no ano de 2013, e relacioná-las com a função social do jornalismo e suas potencialidades no que tange à governança dos riscos climáticos, especialmente no nível local. A análise apresentada faz parte da pesquisa de doutorado da primeira autora que pretende concatenar as diferentes etapas do circuito da notícia pensando na comunicação, percepção e governança atreladas a questão climática. Neste texto nos centramos na discussão do papel da imprensa e do próprio profissional diante do problema das alterações do clima, concluindo que os respondentes atribuem funções sociais significativas à imprensa, mas não se veem como elementos-chave na promoção da governança climática, atribuindo mais responsabilidades a outros setores e justificando suas limitações a partir de normas e critérios profissionais.

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Relatório de estágio de mestrado em Ensino do 1.º e 2.º Ciclo do Ensino Básico