Recursos de colección

Repositório do Instituto Politénico de Castelo Branco (14.730 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 - Escola Superior de Tecnologia

Mostrando recursos 1 - 20 de 479

  1. Using deep neural networks for forecasting cell congestion on LTE networks: a simple approach

    Torres, Pedro; Marques, Hugo; Marques, Paulo; Rodriguez, Jonathan
    “This is a pre-copyedited version of a contribution published in Marques P., Radwan A., Mumtaz S., Noguet D., Rodriguez J., Gundlach M. (eds) Cognitive Radio Oriented Wireless Networks published by Springer. The definitive authenticated version is available online via https://doi.org/10.1007/978-3-319-76207-4_23 "

  2. Data analytics for forecasting cell congestion on LTE networks

    Torres, Pedro; Marques, Paulo; Marques, Hugo; Dionísio, Rogério; Alves, Tiago; Pereira, Luis; Ribeiro, Jorge
    “© © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.”

  3. Robotic system navigation developed for hip resurfacing prosthesis surgery

    Torres, Pedro; Gonçalves, P.J.S.; Martins, Jorge M. M.
    “This is a pre-copyedited version of a contribution published in HUSTY, M.; HOFBAUR, M. (eds) New trends in medical and service robots published by Springer. The definitive authenticated version is available online via https://doi.org/10.1007/978-3-319-59972-4_13 "

  4. Simulation optimization: a new job release approach for Industry 4.0

    Fernandes, N.O.G.; Thurer, Matthias; Pinho, Tatiana; Torres, Pedro; Carmo-Silva, Silvio
    The rise of Industry 4.0 has highlighted simulation optimisation as a decision-making tool for scheduling complex-manufacturing systems, specifically when resources are expensive and multiple jobs compete for the same resources. In this context, simulation optimisation provides an important mean to predict, evaluate and improve the short-term performance of the manufacturing system. An important scheduling function is controlled job release; jobs (or orders) are not released immediately to the shop floor, as they arrive to the production system, but release is controlled to stabilize work-in-process, reduce manufacturing lead times and meet customer delivery requirements. While there exists a broad literature on job...

  5. Avaliação do risco ambiental de elementos potencialmente tóxicos em sedimentos de corrente - estudo de caso em Monfortinho (Centro Portugal)

    Antunes, IMHR; Albuquerque, MTD
    Os autores agradecem ao LNEG (atual representante dos Serviços Geológicos de Portugal) pela cedência dos dados. Este trabalho foi desenvolvido no âmbito do ICT– Universidade do Minho (Braga).

  6. Autonomous production control: a literature review

    Martins, L.; Fernandes, N.O.G.; Varela, L.M.R,
    “This is a post-peer-review, pre-copyedit version of an article published In Machado, José, Soares, Filomena, Veiga, Germano (Eds.). Innovation, Engineering and Entrepreneurship . The final authenticated version is available online at:10.1007/978-3-319-91334-6”.

  7. A mobile application to provide personalized information for mobility impaired tourists

    Ribeiro, F. Reinaldo; Metrôlho, J.C.M.M.; Leal, João; Martins, Hugo; Bastos, Pedro
    This is a pre-copyedited version of a contribution published in Rocha A., Adeli H., Reis L.P., Costanzo S. (eds) Trends and Advances in Information Systems and Technologies. WorldCIST'18 2018 published by Springer. The definitive authenticated version is available online via https://doi.org/10.1007/978-3-319-77712-2_16

  8. 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...

  9. 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...

  10. Projeto de desenvolvimento de software GESCORR: sistema de gestão documental e processos empresariais

    Barata, L. M.S.S.A.
    Provas públicas apresentadas à Escola Superior de Tecnologia do Instituto Politécnico de Castelo Branco para cumprimento dos requisitos necessários à obtenção do Título de Especialista em Desenvolvimento de Sistemas de Informação.

  11. 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...

  12. On SC/FDE block transmission with reduced cyclic prefix assistance

    Gusmão, António; Torres, Paulo; Dinis, Rui; Esteves, Nelson
    “© © 2006 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.”

  13. 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...

  14. 3D printing online learning environements: multiple approaches towards self-learning of engineering design students

    Pikkarainen, Ari; Gaspar, Marcelo
    This paper presents an exploratory study conducted at two Higher Education Engineering Schools, namely in the Lapland University of Applied Sciences (Finland) and in the Polytechnic Institute of Castelo Branco (Portugal), with the aim of constructing digital learning environments that promote increasing learning autonomy to students working with 3D printing technologies in engineering design. Based on pilot blended learning experiences carried-out in both schools, new instructional design solutions are proposed and discussed, aiming at a widespread use of such digital platforms not only for blended and online learning processes in engineering schools, but also as Massive Open Online Courses open to wider communities interested in such technologies.

  15. 3D printing online learning environements: multiple approaches towards self-learning of engineering design students

    Pikkarainen, Ari; Gaspar, Marcelo
    This paper presents an exploratory study conducted at two Higher Education Engineering Schools, namely in the Lapland University of Applied Sciences (Finland) and in the Polytechnic Institute of Castelo Branco (Portugal), with the aim of constructing digital learning environments that promote increasing learning autonomy to students working with 3D printing technologies in engineering design. Based on pilot blended learning experiences carried-out in both schools, new instructional design solutions are proposed and discussed, aiming at a widespread use of such digital platforms not only for blended and online learning processes in engineering schools, but also as Massive Open Online Courses open to wider communities interested in such technologies.

  16. The co-construction of a bilingual glossary of terms for engineering design technologies as part of learning in engineering trough a collaborative CLIL approach

    Gaspar, Marcelo; Régio, Mónica; Morgado, Margarida
    This case study refers to the collaborative work of pre-engineering and engineering students, supported by their content and English for Specific Purposes (ESP) teachers, on the development of a full semester assignment focusing on the design and construction of a dedicated glossary of terms. Based on a student-centered Content and Language Integrated Learning (CLIL) approach, intermediate tasks were proposed to the students to construct their own personal glossary about the subject. As a result of the combined effort of all actors, a full class bilingual glossary of terms was obtained for engineering design technologies as part of learning in engineering through a collaborative CLIL approach.

  17. The co-construction of a bilingual glossary of terms for engineering design technologies as part of learning in engineering trough a collaborative CLIL approach

    Gaspar, Marcelo; Régio, Mónica; Morgado, Margarida
    This case study refers to the collaborative work of pre-engineering and engineering students, supported by their content and English for Specific Purposes (ESP) teachers, on the development of a full semester assignment focusing on the design and construction of a dedicated glossary of terms. Based on a student-centered Content and Language Integrated Learning (CLIL) approach, intermediate tasks were proposed to the students to construct their own personal glossary about the subject. As a result of the combined effort of all actors, a full class bilingual glossary of terms was obtained for engineering design technologies as part of learning in engineering through a collaborative CLIL approach.

  18. 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”

  19. 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”

  20. 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...

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