Search results for "Manufacture"
showing 10 items of 107 documents
Effects of Different Test Setups on the Experimental Tensile Behaviour of Basalt Fibre Bidirectional Grids for FRCM Composites
2020
Fibre-reinforced cementitious matrix (FRCM) composites have been effectively used during the last ten years for the strengthening of existing concrete and masonry structures. These composite materials are made of medium- and high-strength fibre meshes embedded in inorganic matrices. Synthetic fibres are the ones that are currently the most used
Ultrasonic phased array inspection of wire plus arc additive manufacture samples using conventional and total focusing method imaging approaches
2019
In this study, three aluminium samples produced by wire + arc additive manufacture (WAAM) are inspected using ultrasonic phased array technology. Artificial defects are machined using a centre drill, ø 3 mm, and electrical discharge machining (EDM), ø 0.5-1 mm, in a cylindrical through-hole topology. The samples are first inspected using a single-element wheel probe mounted on a KUKA robot in order to investigate the feasibility of using a conventional ultrasonic transducer approach. Unfortunately, the wheel probe is found to be unsuitable for scanning the WAAM specimens and ultrasonic phased arrays are employed next. The set-up includes 5 MHz and 10 MHz arrays (128 elements) in direct cont…
An aging evaluation of the bearing performances of glass fiber composite laminate in salt spray fog environment
2019
The aim of the present paper is to assess the bearing performance evolution of pinned, glass-composite laminates due to environmental aging in salt-spray fog tests. Glass fibers/epoxy pinned laminates were exposed for up to 60 days in salt-spraying, foggy environmental conditions (according to ASTM B117 standard). In order to evaluate the relationship between mechanical failure mode and joint stability over increasing aging time, different single lap joints, measured by the changing hole diameter (D), laminate width (W) and hole free edge distance (E), were characterized at varying aging steps. Based on this approach, the property-structure relationship of glass-fibers/epoxy laminates was a…
Apoptotic activity of isoespintanol derivatives in human polymorphonuclear cells
2016
Background: Inflammation is a complex physiopathologic response to different stimuli. Recently, some pharmacological strategies have been proposed that could be used for resolution of inflammation by enhancing apoptosis of inflammatory cells. Objectives: To study in vitro apoptotic activity of isoespintanol [ISO] and of two semi-synthetic derivatives, bromide isoespintanol [BrI] and demethylated isoespintanol [DMI], in human polymorphonuclear (PMN) cells. Methods: PMN were exposed to the different concentrations of ISO, BrI and DMI for 30 min in phosphate-buffered saline pH 7.4 containing 1 mg/mL glucose, 0.4 mM Mg2+, and 1.20 mM Ca2+. Viability was assessed by dimethylthiazol diphenyl tetr…
Food Frontiers : An academically sponsored new journal
2020
Is an anarchist business organization possible? Textile firms in the industrial district of Alcoi during the Spanish Civil War (1936-39)
2019
espanolDurante la Guerra Civil Espanola, en el lado republicano, estallo una revolucion social, liderada por los trabajadores y sus sindicatos que termino en muchos lugares en un proceso de colectivizacion empresarial. En la ciudad de Alcoi, el sindicato anarquista tomo el control de mas de 100 empresas textiles familiares, pasando por un proceso de racionalizacion que unifico la produccion de todas las empresas textiles para superar una crisis de produccion anterior y atender la demanda de guerra. ?El caso de Alcoi durante la Guerra Civil demuestra la posibilidad de una organizacion empresarial anarquista exitosa? Este articulo trata de comprender el desarrollo de los negocios sin una orga…
Morphologie et évolution des fours céramiques en Europe occidentale - Protohistoire, monde celtique et Gaule romaine
1979
International audience
Deploying Genome Editing Tools for Dissecting the Biology of Nut Trees
2019
Walnuts are among the most important nut crops grown in temperate regions of the world. Commercial production in California, and increasingly worldwide, relies on only few clonally grafted scion genotypes, particularly “Chandler,” and more recently clonally propagated disease-resistant rootstocks. Diseases, nematodes, insect pests, abiotic stresses, and other nutritional and environmental factors, can reduce walnut productivity and quality, affecting grower profitability. The California Walnut Breeding Program at UC Davis has developed and released scion cultivars and rootstocks to help address some of these problems. Sequencing of the walnut genome is expected to speed walnut breeding by f…
A new approach to predict the fish fillet shelf-life in presence of natural preservative agents
2017
Three data sets concerning the behaviour of spoilage flora of fillets treated with natural preservative substances (NPS) were used to construct a new kind of mathematical predictive model. This model, unlike other ones, allows expressing the antibacterial effect of the NPS separately from the prediction of the growth rate. This approach, based on the introduction of a parameter into the predictive primary model, produced a good fitting of observed data and allowed characterising quantitatively the increase of shelf-life of fillets.
Looking for a virtuous pattern of growth. Some insights for discussion
2016
Este artículo busca arrojar un poco más de luz en el actual debate «manufacturas frente a servicios» y su papel en el crecimiento económico, tomando como punto de partida la Comunicación de la CE Por un Renacimiento Industrial Europeo. Se presentan dos criterios para evaluar las razones que justifican el apoyo a determinados sectores económicos (ya sea manufacturas o servicios): 1. la capacidad de generar empleo y 2. la capacidad de presentar un crecimiento positivo de la productividad. El artículo evalúa las manufacturas y los servicios en función de estos dos criterios, utilizando la base de datos PREDICT, caracterizada por su elevada desagregación sectorial. La conclusión a la que se lle…