Recursos de colección

Repositório do Instituto Politénico de Castelo Branco (14.798 recursos)

O Repositório Científico do Instituto Politécnico de Castelo Branco tem como objectivos fundamentais a divulgação, a preservação em formato digital e a partilha do conhecimento científico gerado na instituição, constituindo-se numa ferramenta de valor acrescentado porque permite aumentar a visibilidade e o impacto da investigação desenvolvida.

ESTCB - Artigos em revistas com arbitragem científica

Mostrando recursos 1 - 20 de 84

  1. A new framework for accessible tourism mobile application development

    Ribeiro, F. Reinaldo; Silva, Arlindo F.; Metrôlho, J.C.M.M.; Silva, A.P.N.F.; Barbosa, F.S.R.B.M.
    Recent years have seen an increasing realization of the importance and potential of accessible tourism. To support it, the ICT industries have provided many different applications, especially for mobile computing frameworks. An analysis of these applications allows us to identify some issues that are not yet fully addressed. These include the absence of collaborative features; the lack of involvement of all stakeholders; the inexistence of synergies; the lack of widely accessible geographic databases and the limited scope of focus within the disability range. To tackle some of these issues, we propose a common framework for development of tourism accessible related...

  2. Mobile applications for accessible tourism: overview, challenges and a proposed platform

    Ribeiro, F. Reinaldo; Silva, Arlindo F.; Barbosa, F.S.R.B.M.; Silva, A.P.N.F.; Metrôlho, J.C.M.M.
    “This is a post-peer-review, pre-copyedit version of an article published in Information Technology & Tourism. The final authenticated version is available online at: https://doi.org/10.1007/s40558-018-0110-2”.

  3. Spatial environmental risk evaluation of potential toxic elements in stream sediments

    Antunes, I.M.H.R.; Albuquerque, M.T.D.; Roque, N.
    “This is a post-peer-review, pre-copyedit version of an article published in Environmental Geochemistry and Health. The final authenticated version is available online at: https://doi.org/10.1007/s10653-018-0124-x "

  4. Developing an index for forest productivity mapping - A case study for maritime pine production regulation in Portugal

    Mestre, S.; Alegria, C.M.M.; Albuquerque, M.T.D.; Goovaerts, P.
    Productivity is very dependent on the environmental and biotic factors present at the site where the forest species of interest is present. Forest site productivity is usually assessed using empirical models applied to inventory data providing discrete predictions. While the use of GIS-based models enables building a site productivity distribution map. Therefore, the aim of this study was to derive a productivity index using multivariate statistics and coupled GIS-geostatistics to obtain a forest productivity map. To that end, a study area vastly covered by naturally regenerated forests of maritime pine in central Portugal was used. First, a productivity index (PI) was built based on Factorial Correspondence...

  5. Combining raw and compositional data to determine the spatial patterns of potentially toxic elements in soils

    Boente, C.; Albuquerque, M.T.D.; Fernández-Braña, A.; Gerassis, S.; Sierra, C.; Gallego, J.R.
    When considering complex scenarios involving several attributes, such as in environmental characterization, a clearer picture of reality can be achieved through the dimensional reduction of data. In this context, maps facilitate the visualization of spatial patterns of contaminant distribution and the identification of enriched areas. A set, of 15 Potentially Toxic Elements (PTEs) – (As, Ba, Cd, Co, Cr, Cu, Hg,Mo, Ni, Pb, Sb, Se, Tl, V, and Zn), was measured in soil, collected in Langreo's municipality (80 km2), Spain. Relative enrichment (RE) is introduced here to refer to the proportion of elements present in a given context. Indeed, a novel approach is provided for research...

  6. Uplink detection performance regarding bandwidth-efficient broadband transmission in a large-scale MU-MIMO System

    Torres, Paulo; Gusmão, António
    This paper deals with Single Carrier/Frequency Domain Equalization (SC/FDE) for uplink transmission within a Multi-User (MU) Multi-Input Multi-Output (MIMO) system where the number of Base Station (BS) antennas can be much larger than the number of transmitter antennas jointly using the same time/frequency resource at Mobile Terminals (MT). Selected Quadrature Amplitude Modulation (QAM) schemes are assumed for transmission, so that high bandwidth efficiencies are achievable. In this context, we consider either a linear detection or a reduced-complexity, iterative Decision Feedback (DF) detection, evaluate the achievable performances in both cases, and discuss them with the help of selected performance bounds and...

  7. Experimental assessment of WiFi coordination strategies using radio environment maps

    Dionísio, Rogério; Marques, Paulo; Alves, T. F.; Ribeiro, J. M. A.
    The rapidly increasing popularity of WiFi has created unprecedented levels of congestion in the unlicensed frequency bands, especially in densely populated urban areas. This results mainly because of the uncoordinated operation and the unmanaged interference between WiFi access points. In this context, the main objective of this experiment is to assess the benefit of a coordinated management of radio resources in dense WiFi networks for both 2.4 GHz and 5 GHz bands, using Radio Environment Maps (REM). This experiment has used the w-iLab.t test environment and the portable test-bed provided by iMINDS for indoor scenarios. It was shown that REMs can detect the presence of interfering links on the network (co-channel or...

  8. Industry 4.0 and telecollaboration to promote cooperation networks: a pilot survey in the portuguese region of Castelo Branco

    Régio, Mónica; Gaspar, Marcelo; Farinha, Luís; Morgado, Margarida
    “The final publication is available at www.ijomam.com”

  9. Industry 4.0 and telecollaboration to promote cooperation networks: a pilot survey in the portuguese region of Castelo Branco

    Régio, Mónica; Gaspar, Marcelo; Farinha, Luís; Morgado, Margarida
    “The final publication is available at www.ijomam.com”

  10. Enhancing regional produce as green products for the global market: an exploratory study in a portuguese region

    Gaspar, Marcelo; Julião, Jorge; Tjahjono, Benny
    This study focuses on exploring the sustainability characteristics of the regional produce, which comes from the Beiras region of Portugal to support new differentiation claims and forecast its effect on a global mass-market. Considering a Multiple Helix approach, this study aims to examine the role and perception of local academia in relation to this new premise to enhance the dynamic and competitive positioning of such regional produce. To this end, several in-depth interviews were conducted with local researchers and decision-makers, allowing the significance and potential of the proposed green claims to be discussed. Several insights into the subject were developed and new directives were presented. Nonetheless, complementary...

  11. Enhancing regional produce as green products for the global market: an exploratory study in a portuguese region

    Gaspar, Marcelo; Julião, Jorge; Tjahjono, Benny
    This study focuses on exploring the sustainability characteristics of the regional produce, which comes from the Beiras region of Portugal to support new differentiation claims and forecast its effect on a global mass-market. Considering a Multiple Helix approach, this study aims to examine the role and perception of local academia in relation to this new premise to enhance the dynamic and competitive positioning of such regional produce. To this end, several in-depth interviews were conducted with local researchers and decision-makers, allowing the significance and potential of the proposed green claims to be discussed. Several insights into the subject were developed and new directives were presented. Nonetheless, complementary...

  12. Content, language and intercultural challenges in engineering education: (E-)strategies to improve instructional design

    Morgado, Margarida; Régio, Mónica; Gaspar, Marcelo
    Intercultural, multilingual and culturally and academically diverse classrooms are a common reality in current higher education (HE) landscapes, as globalisation is effectively taking place in all major schools. Rethinking instructional design strategies that contribute to the overcoming of communication and cultural differences in both online and blended learning processes may help not only improve the development of more efficient online learning environments but also meet the challenges of current teaching and learning processes. Special focus will be put into engineering education through the medium of English and the training of engineering lecturers in HE through communities of practice (CoPs), which...

  13. Content, language and intercultural challenges in engineering education: (E-)strategies to improve instructional design

    Morgado, Margarida; Régio, Mónica; Gaspar, Marcelo
    Intercultural, multilingual and culturally and academically diverse classrooms are a common reality in current higher education (HE) landscapes, as globalisation is effectively taking place in all major schools. Rethinking instructional design strategies that contribute to the overcoming of communication and cultural differences in both online and blended learning processes may help not only improve the development of more efficient online learning environments but also meet the challenges of current teaching and learning processes. Special focus will be put into engineering education through the medium of English and the training of engineering lecturers in HE through communities of practice (CoPs), which...

  14. Collaborative tools in higher education: the use of Wikis by industrial and mechanical engineering students

    Gaspar, Marcelo; Celorrio-Barrague, Luis; Pikkarainen, Ari; Glavan, Dan Ovidiu
    Continuous technological advances keep challenging current and future engineers to anticipate and adapt to the new trends and paradigms that are expected to take place in a near future. One of such paradigms is the Industry 4.0 that encompasses the promise of a new industrial revolution based on the interconnectivity of people and systems to communicate, analyse and use information related to industrial processes. New challenges, as well as new opportunities, will rise in this digital landscape, demanding from future engineers the ability to adapt and grow in such ground-breaking environments. With such dynamic changes taking place in the current...

  15. Collaborative tools in higher education: the use of Wikis by industrial and mechanical engineering students

    Gaspar, Marcelo; Celorrio-Barrague, Luis; Pikkarainen, Ari; Glavan, Dan Ovidiu
    Continuous technological advances keep challenging current and future engineers to anticipate and adapt to the new trends and paradigms that are expected to take place in a near future. One of such paradigms is the Industry 4.0 that encompasses the promise of a new industrial revolution based on the interconnectivity of people and systems to communicate, analyse and use information related to industrial processes. New challenges, as well as new opportunities, will rise in this digital landscape, demanding from future engineers the ability to adapt and grow in such ground-breaking environments. With such dynamic changes taking place in the current...

  16. Study on the influence of supplying compressed air channels and evicting channels on pneumatical oscillation systems for vibromooshing

    Glăvan, D.O.; Radu, I.; Babanatsas, T.; Babanatis Merce, R.M.; Kiss, I.; Gaspar, Marcelo
    The paper presents a pneumatic system with two oscillating masses. The system is composed of a cylinder (framework) with mass m1, which has a piston with mass m2 inside. The cylinder (framework system) has one supplying channel for compressed air and one evicting channel for each work chamber (left and right of the piston). Functionality of the piston position comparatively with the cylinder (framework) is possible through the supplying or evicting of compressed air. The variable force that keeps the movement depends on variation of the pressure that is changing depending on the piston position according to the cylinder (framework) and to the section form that is...

  17. Study on the influence of supplying compressed air channels and evicting channels on pneumatical oscillation systems for vibromooshing

    Glăvan, D.O.; Radu, I.; Babanatsas, T.; Babanatis Merce, R.M.; Kiss, I.; Gaspar, Marcelo
    The paper presents a pneumatic system with two oscillating masses. The system is composed of a cylinder (framework) with mass m1, which has a piston with mass m2 inside. The cylinder (framework system) has one supplying channel for compressed air and one evicting channel for each work chamber (left and right of the piston). Functionality of the piston position comparatively with the cylinder (framework) is possible through the supplying or evicting of compressed air. The variable force that keeps the movement depends on variation of the pressure that is changing depending on the piston position according to the cylinder (framework) and to the section form that is...

  18. Lean-Green manufacturing: collaborative content and language integrated learning in higher education and engineering courses

    Gaspar, Marcelo; Régio, Mónica; Morgado, Margarida
    Lean and Green manufacturing processes aim at achieving lower material and labour costs, while reducing impacts on the environment, and promoting sustainability as a whole. This paper reports on a pilot experiment with higher education and engineering students, exploring the full potential of a collaborative approach on courses integrating the Portuguese Polytechnic of Castelo Branco engineering studies curricula, while simultaneously improving their proÞ ciency in English. Content and Language Integrated Learning (CLIL) has become a key area of curricular innovation since it is known for improving both language and content teacher and student motivation. In this context, instructional design for CLIL entailed tandem work of content (engineering) and language...

  19. Lean-Green manufacturing: collaborative content and language integrated learning in higher education and engineering courses

    Gaspar, Marcelo; Régio, Mónica; Morgado, Margarida
    Lean and Green manufacturing processes aim at achieving lower material and labour costs, while reducing impacts on the environment, and promoting sustainability as a whole. This paper reports on a pilot experiment with higher education and engineering students, exploring the full potential of a collaborative approach on courses integrating the Portuguese Polytechnic of Castelo Branco engineering studies curricula, while simultaneously improving their proÞ ciency in English. Content and Language Integrated Learning (CLIL) has become a key area of curricular innovation since it is known for improving both language and content teacher and student motivation. In this context, instructional design for CLIL entailed tandem work of content (engineering) and language...

  20. Sustainability assessment of building rehabilitation actions in old urban centres

    Almeida, C.P.; Ramos, A.T.V.F.; Silva, J.M.
    It is essential that the society understands the importance of sustainable development, its implication for the existing living standards and the need to implement management policies that promote sustainability. Rehabilitation assumes a fundamental role in this process; however, we are faced with the lack of specific, adequate and simplified tools for the sustainability assessment in rehabilitation actions. In this paper, the analysis of different sustainability assessment systems was conducted, comparing them in order to identify the adjustments to be made to a Portuguese model taken under consideration. Subsequently, the model was cross-checked with current European and national urban rehabilitation and regeneration...

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