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- Correia, J.H. (author), de Graaf, G. (author), Bartek, M. (author), Wolffenbuttel, R.F. (author) journal article 2001
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Emadi, A. (author), Wu, H. (author), De Graaf, G. (author), Hedsten, K. (author), Enoksson, P. (author), Correia, J.H. (author), Wolffenbuttel, R.F. (author)This paper presents the design, fabrication and spectral measurements of an Ultra-Violet (UV) Linear Variable Optical Filter (LVOF)-based micro-spectrometer operating in the 300 nm–400 nm wavelength range. The UV LVOF has been fabricated in an IC-Compatible process using resist reflow. Characterization by passing monochromatic light through the...journal article 2010
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Correia, J.H. (author), Emadi, A.R. (author), Wolffenbuttel, R.F. (author)This paper describes the design and modeling of a UV bandpass optical filter for microspectrometers. The materials used for fabricating the multilayer UV filter are: silicon dioxide (SiO2), titanium dioxide (TiO2) and yttrium oxide (Y2O3). The optical filter shows a bandpass response wavelength in the range 230-280 nm, with a transmittance...journal article 2006
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- Correia, J.H. (author), de Graaf, G. (author), Bartek, M. (author), Wolffenbuttel, R.F. (author) journal article 2001
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Silva, M.F. (author), Rodrigues, J.A. (author), Oliveira, M.J. (author), Fernandes, A.R. (author), Pereira, S. (author), Costa, C.G. (author), Ghaderi, M. (author), Ayerden, P. (author), Goncalves, L.M. (author), De Graaf, G. (author), Wolffenbuttel, R.F. (author), Correia, J.H. (author)This paper presents the design, fabrication and characterization of two Fabry Perot type optical filters (415 nm and 540 nm) for enabling Narrow Band Imaging (NBI) in medical devices (MD). The two-colour illumination should satisfy a highly specific optical design, which is composed of a thin-film optical filter stack of titanium dioxide (TiO2)...journal article 2014
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- Minas, G. (author), Wolffenbuttel, R.F. (author), Correia, J.H. (author) journal article 2006
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Ferreira, D.S. (author), Mirkovic, J. (author), Wolffenbuttel, R.F. (author), Correia, J.H. (author), Feld, M.S. (author), Minas, G. (author)A strategy for spectroscopy tissue diagnosis using a small number of wavelengths is reported. The feasibility to accurately quantify tissue information using only 16 wavelengths is demonstrated with several wavelength reduction simulations of the existing esophageal data set. These results are an important step for the development of a...journal article 2011
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Costa, C.G. (author), Gomes, J.M. (author), Wolffenbuttel, R.F. (author), Correia, J.H. (author)Medical imaging is an important part of diagnosis. The procedure should provide valuable information for diagnosis and, at the same time, should be minimally invasive for the patient. Therefore, when performing endoscopic imaging, a system with reduced dimensions is crucial. The performance of imaging systems, used in several diagnosis...journal article 2016
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Calabrò, Giovanni (author), Le Pira, Michela (author), Giuffrida, Nadia (author), Inturri, Giuseppe (author), Ignaccolo, Matteo (author), Correia, Gonçalo (author)Feeder transport services are fundamental as first and last-mile connectors of mass rapid transit (MRT). They are especially beneficial in low-demand areas where private transport is usually the main transport mode. Besides, the rapid spread of new technologies such as vehicle automation and the shared mobility paradigm gave rise to new...journal article 2022
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Jamshidi, Helia (author), Correia, Gonçalo (author), van Essen, J.T. (author), Nökel, Klaus (author)Short driving range, limited chargers, and long charging times challenge the profitability of electric taxi operations. In this paper, a charging algorithm is developed to accompany a taxi service with online trip requests, which uses a private charging infrastructure for both slow and fast charging. The vehicle charging curves are assumed to be...journal article 2021
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Wang, S. (author), Correia, Gonçalo (author), Lin, H.X. (author)This paper addresses the problem of studying the impacts of the strategic formation of platoons in automated mobility-on-demand (AMoD) systems in future cities. Forming platoons has the potential to improve traffic efficiency, resulting in reduced travel times and energy consumption. However, in the platoon formation phase, coordinating the...journal article 2022
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Santos, Gonçalo Gonçalves Duarte (author), Birolini, Sebastian (author), Correia, Gonçalo (author)Shared automated vehicles are expected to be part of the supply of transportation systems in the future. Parallel to this evolution, there is the rapid penetration of battery electric vehicles (BEVs). The limitations in battery capacity and charging speed of BEVs can influence the planning and operation of shared automated electric vehicle (SAEV...journal article 2023
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Pedrosa, Bruno (author), Correia, José (author), Rebelo, Carlos (author), Veljkovic, M. (author), Gervásio, Helena (author)All over the world, the number of civil engineering structures, particularly bridges with long service periods, has been increasing. The most common evidences of damages are the presence of corroded metallic elements and cracks in structural details due to the fatigue phenomenon. A large number of cases were found in which fatigue cracks were...journal article 2021
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Muller, Mark (author), Park, Seri (author), Lee, Ross (author), Fusco, Brett (author), Correia, Gonçalo (author)Mobility as a Service (MaaS) is an emerging concept that is being advanced as an effective approach to improve the sustainability of mobility, especially in densely populated urban areas. MaaS can be defined as the integration of various transport modes into a single service, accessible on demand, via a seamless digital planning and payment...journal article 2021
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Yap, M.D. (author), Correia, Gonçalo (author), van Arem, B. (author)In the recent years many developments took place regarding automated vehicles (AVs) technology. It is however unknown to which extent the share of the existing transport modes will change as result of AVs introduction as another public transport option. This study is the first where detailed traveller preferences for AVs are explored and...journal article 2016
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Wang, Wenjing (author), Wang, Y. (author), Correia, Gonçalo (author), Chen, Y. (author)In a multimodal public transport network, transfers are inevitable. Planning and managing an efficient transfer connection is thus important and requires an understanding of the factors that influence those transfers. Existing studies on predicting passenger transfer flows have mainly used transit assignment models based on route choice,...journal article 2020
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Mohabeddine, A.I. (author), Malik, Ghassan (author), Correia, José (author), Silva, Filipe (author), De Jesus, Abílio M.P. (author), Fantuzzi, Nicholas (author), Castro, José Miguel (author)This paper presents an extensive experimental and numerical study on the behavior of CFRP/Steel adhesively bonded double strap joints (DSJ). A total of 50 DSJ specimens were tested under static tensile loading. The digital image correlation (DIC) was used to measure the backface deformation. A total of six adhesives that feature different...journal article 2023
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Fernández Canteli, A. (author), Castillo, E. (author), Blasón, S. (author), Correia, J.A.F.O. (author), de Jesus, A. M.P. (author)In this work, three classes of fatigue models are reviewed according to the fatigue regimes commonly considered in the current components design. Particular attention is devoted to the so-called Class III fatigue models, covering the three fatigue regimes, namely, LCF, HCF and VHCF. The applicability and limitations of the proposed analytical...journal article 2022
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Bösehans, Gustav (author), Bell, Margaret (author), Thorpe, Neil (author), Liao, F. (author), Correia, Gonçalo (author), Dissanayake, Dilum (author)Shared electric mobility hubs, or eHUBs, offer users access to a range of shared electric vehicles on demand. However, little is currently known about what the characteristics of potential users of this novel type of shared mobility are. This makes it difficult to plan the location of hubs and to provide facilities, which ultimately will...journal article 2021
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Vilaça, Mariana (author), Santos, Gonçalo (author), Oliveira, Mónica S.A. (author), Coelho, Margarida C. (author), Correia, Gonçalo (author)The future of road transportation systems faces fundamental changes concerning technological progress and business models. Automated and electric vehicles are coming into the market and evolving towards a service-based mobility system with promises to tackle energy and environmental issues in the mobility sector. Although recent studies have...journal article 2022