26 documents found, page 1 of 3
Pneumoencéfalo Após Infeção do Sistema Nervoso Central: A Propósito de um Caso ...
Medeiros, Teresa; Bem, Pedro; Valente, Tiago; Camões, João.
Blind competition on the numerical simulation of continuous shallow steel‐fiber...
Barros, Joaquim A. O.; Sanz, Beatriz; Filho, Marcílio; Figueiredo, Fabio; Kabele, Petr; Yu, Rena C.; Meschke, Günther; Planas, JaimeThis article describes the second blind simulation competition (BSC) organized by the fib WG 2.4.1, which aims to assess the predictive performance of models based on the finite element method (FEM) for the analysis and design of fiber reinforced concrete (FRC) structures. Slabs supported on columns or piles have becoming competitive applications for FRC due to the technical and economic benefits may be obtaine...
Palipocus: The Use of POCUS in the Palliative Care Setting
Egídio de Sousa, Inês; Monteiro, Margarida; Valente, Tiago; Santos, André; Fiuza, Tiago; Pacheco Mendes, Adriano; Soares, Rita; Teixeira, JorgePalliative care is the holistic care of individuals with serious health-related suffering due to severe illness. The improving survival in malignant and non-malignant diseases results in an ageing population who live with advanced chronic diseases that commonly present to acute care settings. With our improved ability to relief symptoms and treat intercurrent complications, imaging can be an important aspect of...
Nova geração de fibras sintéticas para o reforço de materiais de matriz cimentí...
Sousa, Christoph Fernandes; Frazão, Cristina; Valente, Tiago; Costa, Inês; Barros, Joaquim A. O.; Moreira, Ana; Freitas, Catarina; Sá, JoãoEste trabalho apresenta a investigação experimental e numérica efetuada para avaliar as potencialidades de reforço de estruturas de betão utilizando uma nova geração de fibras sintéticas desenvolvidas no âmbito do projeto de R&D “NG_TPfib – Nova geração de fibras para o reforço de materiais de matriz cimentícia”. São apresentados, para diferentes tipos de fibras de polipropileno (PP), ensaios experimentais real...
Competición a ciegas de simulaciones numéricas del fallo a cortante de vigas de...
Barros, Joaquim A. O.; Sanz, Beatriz; Kabele, Petr; Yu, Rena C.; Meschke, Günther; Planas, Jaime; Cunha, Vitor; Caggiano, Antonio; Ozyurt, NilüferLa investigación experimental ha demostrado el extraordinario potencial de la adición de fibras cortas a los materiales cementiceos, ya que mejoran significativamente el comportamiento de estructuras de hormigón en los estados límite de servicio y último. Para la simulación del comportamiento no lineal del material en estructuras de hormigón reforzado con fibras se utilizan programas informáticos basados en el ...
Eficiente sistema híbrido de reforço ao corte e flexão de estruturas de betão a...
Barros, Joaquim A. O.; Valente, Tiago; Costa, Inês G.[Excerto] A intenção de aumentar a capacidade de elevação e movimentação de cargas num edifício industrial conduziu à elaboração de um projeto de reforço estrutural. A estrutura existente é formada por dois pórticos paralelos afastados de cerca de 14 m, sendo cada pórtico constituído por pilares e vigas em betão armado com 8.0 m de vão (Figura 1). Os pórticos dão suporte à cobertura metálica do edifício, bem co...
Technical and environmental potentialities of recycled steel fiber reinforced c...
Frazão, Cristina Maria Vieira; Barros, Joaquim A. O.; Bogas, J. Alexandre; García-Cortés, Verónica; Valente, TiagoThe use of recycled materials and industrial by-products as sustainable constituents of cementbased materials could be an environmentally and technically promising solution for application to structural elements. In the present work, the technical and environmental impact of using recycled steel fibers as an alternative to industrial steel fibers for concrete reinforcement was assessed at material level. Numeri...
Blind competition on the numerical simulation of steel-fiber-reinforced concret...
Barros, Joaquim A. O.; Sanz, Beatriz; Kabele, Petr; Yu, Rena C.; Meschke, Günther; Planas, Jaime; Cunha, Vitor M. C. F.; Caggiano, AntonioExperimental research has shown the extraordinary potential of the addition of short fibers to cement-based materials by improving significantly the behavior of concrete structures for serviceability and ultimate limit states. Software based on the finite element method has been used for the simulation of the material nonlinear behavior of fiber-reinforced concrete (FRC) structures. The applicability of the exi...
Integrated model for predicting the flexural capacity of concrete elements rein...
Valente, Tiago; Sousa, Christoph Fernandes; Costa, Inês; Melo, Felipe; Barros, Joaquim A. O.The present work describes an integrated approach that leads to the development of a new model capable of describing the tensile behavior (mode I) of fiber reinforced concrete (FRC), considering the orientation of the fibers, the fibers segregation along the cross-section of the FRC members and the pullout constitutive model of each fiber bridging the two faces of a crack. The possibility of the numerical model...
Big Data, european data strategy and innovation: a systematic review of the lit...
Walter, Cicero Eduardo; Valente, Tiago; Polónia, Daniel Ferreira; Oliveira, Manuel Au-Yong; Veloso, CláudiaAs a result of the disruptive and comprehensive power of using Big Data, organizations need to commit to its appli-cation at a strategic level to achieve sustainable competitive advantages through its efficient use. Given this context and considering the importance of Big Data, this research aimed to identify how Big Data and its strategies, have been used to promote innovation, through a systematic review of t...