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- Patente Nacional Nº 107553 - Equipamento para implementar o teste de avaliação funcional''timed up and go''Publication . Gonçalves, José; Batista, JoséO presente invento refere-se a um equipamento utilizado no teste de avaliação funcional ''timed up and go''. Trata-se de um dos testes típicos físicos feitos a grupos específicos da população com potencial défice de capacidade funcional, visando especialmente os gerontes. O sistema é constituído por uma cadeira (1) com um sensor micro interruptor (2) colocado debaixo do assento, um tapete (5) com dois sensores de força (3,4), uma carta eletrónica (6) desenvolvida, uma carta arduino uno (7) e um computador pessoal (8). O sensor micro interruptor deteta quando a pessoa se levanta, e os sensores de força sinalizam quando é inicializada a marcha. A carta electrónica desenvolvida é acoplada fisicamente ao arduino uno, sendo a conexão deste ao computador feita via porta usb. O presente sistema é aplicável, por exemplo, na medicina física e reabilitação, geriatria, e sempre que se pretenda avaliar a aptidão física de grupos específicos da população.
- Conception, development and validation of a software interface to assess human’s horizontal intra-cyclic velocity with a mechanical speedo-meterPublication . Barbosa, Tiago M.; Costa, M.J.; Morais, J.E.; Jesus, Sérgio; Marques, Mário C.; Batista, José; Gonçalves, JoséThe aim of this paper was to: (i) calibrate the Swimsportec® speedo-meter; (ii) concept and develop a software’s interface for it (iii) validate the full system. Calibration was done with an industrial robot. The robot arm’s performed a linear and horizontal path at a uniform movement for a set of wide range of velocities (0.5
- Validation with videometry of an integrated system to assess horizontal intra-cyclic velocity with a mechanical speedo-meterPublication . Barbosa, Tiago M.; Costa, M.J.; Morais, J.E.; Jesus, Sérgio; Silva, A.J.; Batista, José; Gonçalves, JoséThe aim of this paper was to: validate an integrated system (i.e., software application and hardware after calibration) to assess human’s horizontal intra-cyclic velocity with a mechanical speedo-meter. System validation was done for a set of land-based human locomotion techniques (from slow walk to maximal running) in four subjects and comparing it with a videometric system (i.e. APAS). There were no significant differences between pair wise data (speedo-meter versus APAS data) using student‘s t-test for both velocity coefficient of variation and maximal velocity. Linear regression models where very high for both the velocity coefficient of variation and maximal velocity. More than 80% of the Bland-Altman plots were within 1.96 standard-deviations.
- Validation of an integrated system to assess horizontal intra-cyclic velocity with a mechanical speedo-meterPublication . Barbosa, Tiago M.; Costa, M.J.; Morais, J.E.; Jesus, Sérgio; Silva, A.J.; Batista, José; Gonçalves, JoséThe aim of this paper was to: validate an integrated system (i.e., software application and hardware after calibration) to assess human’s horizontal intra-cyclic velocity with a mechanical speedo-meter.
- Dealing with the very small: first steps of a picohydro demonstration project in an university campusPublication . Leite, Vicente; Figueiredo, Tomás de; Pinheiro, Tiago; Ferreira, Ângela P.; Batista, JoséThis paper presents the implementation, project and design of a small run-of-river hydropower plant, designed for demonstration purposes, under a Project aimed to be a framework of wide spread dissemination of renewable energies and energy efficiency in an University Campus. The details of the hydroelectric power plant, from the project design until the final use of the produced electric energy, are described. The main requirements of the implementation are presented, with regards to the environmental footprint and topography of the site and the adopted solutions are also described. Considering the demonstration purposes, two different electrical systems were installed in the power house: stand-alone and grid-connected. The latter establishes a case study in the development and application of picohydro power plants as microgeneration units in the context of distributed generation systems. The evaluation of both systems is also presented, based on the experimental results obtained from tests experiments and from monitoring the first months of operation at the site.
- Patente Nacional Nº 107554 - Equipamento para implementar o teste de avaliação funcional ''hand force''Publication . Gonçalves, José; Batista, JoséO presente invento refere-se a um equipamento utilizado no teste de avaliação funcional ''hand force''. Trata-se de um dos testes físicos típicos feitos a grupos específicos da população com potencial défice de capacidade funcional, visando especialmente os gerontes. O sistema é constituído por uma cadeira (1), um acessório de punho para apertar com a mão (2) onde estão instaladas duas micro células de carga (3, 4) para medir a força exercida pela mão durante a ação de aperto, uma carta eletrónica desenvolvida (5) para condicionamento do sinal gerado pelas células de carga, uma carta arduino uno (6) e um computador pessoal (7). A carta eletrónica desenvolvida é acoplada fisicamente ao arduino uno, e a conexão deste ao computador é feita via porta usb. O presente sistema é aplicável, por exemplo, na medicina física e reabilitação, geriatria, e sempre que se pretenda avaliar a aptidão física de grupos específicos da população.
- Projeto de uma picocentral hidrelétrica em um campus universitárioPublication . Leite, V.; Figueiredo, Tomás de; Pinheiro, Tiago; Ferreira, Ângela P.; Batista, JoséEste artigo descreve os detalhes de implementação de uma central hidrelétrica de pequeno porte a fio de água, desde a concepção até à utilização da energia produzida, incluindo os requisitos relacionados à topografia do local, além da avaliação dos dois sistemas instalados (isolado e conectado à rede pública), com base em resultados de testes e ensaios e no monitoramento dos primeiros meses de operação.
- One dimensional consolidation and direct shear tests: experimental setup based on a LabVIEW approachPublication . Gonçalves, José; Batista, José; Paula, António Miguel; Braz-César, ManuelThis work describes an experimental setup that was developed in order to automate the one-dimensional consolidation and the direct shear Tests. This experimental setup assures repeatability in the data acquisition, avoiding human errors, mainly when the tests data vary with a high dynamic. The described setup is based on LabVIEW, LVDT sensors and a 16 Bit Data Acquisition Board. For the one-dimensional consolidation test it was used a Load device and a consolidometer, being the experimental setup developed according to the standard ASTM D2435 / D2435M - 11. For the direct shear Test it was used an apparatus, covered in ASTM standard D-3080 / D3080M - 11, "Standard Method for direct shear test on soils under consolidated drained conditions".
- Applicability study os the oedometer test to a silty sandPublication . Paula, António Miguel; Gonçalves, José; Batista, José; Braz-César, Manuel; Freitas, Bruno AfonsoThis paper exposes the applicability study of the oedometer test to an existing silty sand soil, from the city of Braganza, with the purpose to verify the applicability of this test to soils with fines in his composition, in a region with predominance of granite residual soils, considering that the granulometric curve of these soils are substantially different from the granulometric curves of the soils that are usually tested. For this, two types of soils were collected, namely intact samples of a silty sand, and a disturbed soil sample whose grains size distribution curve built into laboratory corresponds to a high plasticity silt. Due to the greater predominance of fines in the high plasticity silt, the mechanical behaviour of this soil, more conditioned by forces of an electrochemical nature, serves as a comparative term to the mechanical behaviour of the undisturbed samples of the silty sand, with a behaviour less dependent on these forces, thus allowing to show applicability of the test to soils with lower percentage of fines, with a more pronounced gravitational behaviour and, therefore, more atypical to the oedometer test. From the results obtained for silty sand, a high value of the immediate settlement was verified after each applied load cycle. Thus this observation, the beginning of the consolidation process demands high accurate recording of the settlement that clearly identify the time that primary consolidation begins. In this way, the implementation of the data acquisition system, allowing the correct reading of the consolidation beginning, minimizing human errors, expands the spectrum of soils existing in the region that can be study by the consolidation problematics point of view.
- Validation with videometry of an integrated system to assess horizontal intra-cyclic velocity with a mechanical speedo-meterPublication . Barbosa, Tiago M.; Costa, M.J.; Morais, J.E.; Jesus, Sérgio; Silva, A.J.; Batista, José; Gonçalves, JoséThe aim of this paper was to: validate an integrated system (i.e., software application and hardware after calibration) to assess human’s horizontal intra-cyclic velocity with a mechanical speedo-meter. System validation was done for a set of land-based human locomotion techniques (from slow walk to maximal running) in four subjects and comparing it with a videometric system (i.e. APAS). There were no significant differences between pair wise data (speedo-meter versus APAS data) using student‘s t-test for both velocity coefficient of variation and maximal velocity. Linear regression models where very high for both the velocity coefficient of variation and maximal velocity. More than 80% of the Bland-Altman plots were within 1.96 standard-deviations.