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Open-innovation practices: Diversity in portuguese smes

Journal of Open Innovation: technology, Market, and Complexity 2021年第3期7卷 169页

作者： Almeida, Fernando Institute for Systems and Computer Engineering Technology and Science (INESC TEC) Polytechnic Institute of Gaya (ISPGAYA) University of Porto Porto 4000-008 Portugal

This study aimed to explore the diversity of open-innovation practices that are adopted in Portuguese SMEs considering the outside-in, inside-out, and coupled paradigms. A quantitative study was carried out considering a sample of 187 Portuguese SMEs. The findings revealed that these organizations favored the adoption of the outside-in paradigm. The inside-out model was the least relevant, especially for smaller companies (i.e., small and micro-companies). The most adopted outside-in practices were the integration of external knowledge from suppliers and clients;in the inside-out model, licensing processes were more important;while in the coupled model, joint ventures and network consortiums stood out. The increase in the innovation capacity of these organizations was highlighted as the most relevant benefit, while the lack of resources and difficulties in integrating knowledge emerged as challenges. This study is especially relevant for the establishment of public-support policies that promote the involvement of Portuguese SMEs in open-innovation processes. © 2021 by the author. Licensee MDPI, Basel, Switzerland.

关键词： Coupled model External knowledge Inside-out model Open innovation Openness Outside-in model

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Building Flexibility Bidding Curves for Energy Communities

Building Flexibility Bidding Curves for Energy Communities

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International Conference on European Electricity Market, EEM

作者： Luís Rodrigues João Mello Kamalanathan Ganesan Ricardo Silva José Villar INESC TEC - Institute for Systems and Computer Engineering Technology and Science Faculdade de Engenharia da Universidade do Porto R&D Nester Portugal

ISBN: (数字)9798350381740

ISBN: (纸本)9798350381757

The integration of renewable generation requires new sources of flexibility, including the flexibility from distributed resources that can be unlocked via local flexibility markets (LFMs). In these markets, aggregators (AGGs) offer the flexibility from their portfolios to the flexibility requesting parties (FRP), i.e. system operators or other balancing requesting parties. To bid in LFMs and manage market uncertainty, AGGs must compute the flexibility they are willing to offer at each possible flexibility market price, by optimizing their portfolios. This paper proposes a 2-stage methodology to compute the flexibility bidding curve that an energy community can send to a LFM when behaving as an AGG of its members resources. At stage 1, the energy community (EC) manager computes the optimal EC operation without flexibility provision, minimizing the EC energy bill, and serving as the baseline to verify the flexibility provision. Then, at stage 2, for each possible flexibility price, the EC manager computes the optimal flexibility to be offered, minimizing the EC energy bill but including the flexibility provision incomes, to build the flexibility bidding curve.

关键词： Renewable energy sources Uncertainty Optimization models Europe Pricing Electric vehicles Regulation

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Assessment of Demand Response Impact on the Frequency Stability of Low-Inertia Power systems

Assessment of Demand Response Impact on the Frequency Stabil...

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Power tech Conference

作者： Rodrigo da Cunha Afonso João Abel Peças Lopes Department of Electrical and Computer Engineering Faculty of Engineering University of Porto Porto Portugal Center for Power and Energy Systems INESC-TEC Porto Portugal

This paper describes a study that sought to analyse the impact of an active demand response on the frequency stability of the Iberian Peninsula for operation scenarios extending to 2040. For that purpose, one developed dynamic models for primary and secondary frequency control provision from demand-side resources, namely Electric Vehicles (EV), thermostatically controlled loads (TCL), and electrolysers. Those models were developed under a Matlab/Simulink environment, and added to a two-area control model representative of the Iberian Peninsula interconnected to the CESA area. Then, one ran simulations of reference disturbances (loss of a large generator or distributed generation) in the developed platform, once it was fully implemented.

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Reconstruction and generation of virtual heritage sites

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Digital Applications in Archaeology and Cultural Heritage 2014年第3-4期1卷 92-102页

作者： Rodrigues, N. Magalhães, L. Moura, J. Chalmers, A. School of Technology and Management Computer Science and Communication Research Centre Polytechnic Institute of Leiria Leiria Portugal Universidade de Trás-os-Montes e Alto Douro Vila Real Portugal Institute for Systems and Computer Engineering of Porto (INESC Porto) Porto Portugal Digital Laboratory WMG University of Warwick United Kingdom

Traditionally procedural modelling techniques are commonly used to generate new structures and are presently established in several areas such as video games and computer animated movies. However they may also be used in heritage applications to efficiently produce models of non-existing worlds for which there is some kind of knowledge (e.g. floor plans, photographs) to support the reconstruction of realistic environments. Similarly they may also be used to support the generation of distinct possibilities that allow experts to draw some conclusions or conceive different hypotheses about lost worlds. The present paper shows the benefits and constraints that may arise from the use of such techniques in virtual heritage applications. Furthermore, a whole method is proposed, for the reconstruction and generation of virtual heritage traversable house models, provided through the means of a grammar, demonstrated with the reconstruction and generation of several Roman houses from the heritage site of Conimbriga, Portugal. © 2014 Elsevier Ltd. All rights reserved.

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Flexibility-Oriented Scheduling of Microgrids Considering the Risk of Uncertainties

Flexibility-Oriented Scheduling of Microgrids Considering th...

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International Conference on Smart Energy systems and technologies (SEST)

作者： Mohammad MansourLakouraj Mohammad Sadegh Javadi João P. S. Catalão Department of Electrical and Computer Engineering Babol Noshirvani University of Technology Babol Iran Institute for Systems and Computer Engineering Technology and Science (INESC TEC) Porto Portugal Faculty of Engineering University of Porto (FEUP) Porto Portugal

ISBN: (数字)9781728147017

ISBN: (纸本)9781728147024

Increasing the penetration of renewable resources has aggravated the operational flexibility at distribution level. In this study, a flexibility-oriented scheduling of microgrids (MGs) is suggested to reduce the power fluctuations in distribution feeders caused by the high penetration of wind turbines (WTs) in MGs. A flexibility constraint as viable and practical solution is used in MG scheduling to address this challenge. The presented scheduling model, implemented using mixed integer linear programming (MILP) and a stochastic framework, exercises risk constraints to capture the uncertainties associated with wind turbines, loads and market prices. The effectiveness of the model is investigated on a MG with high penetration of WTs in the presence of demand response (DR) and energy storage systems (ESSs). Numerical studies show the influence of risk parameters' changing on operation costs. In addition, the flexibility constraint mitigates the sharp variation of the net load at distribution level, which improves the flexibility of the distribution system.

关键词： Uncertainty Stochastic processes Wind turbines Scheduling Load modeling Power systems Processor scheduling

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tec4SEA — A modular platform for research, test and validation of technologies supporting a sustainable blue economy

TEC4SEA — A modular platform for research, test and validat...

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OCEANS

作者： Paulo Mónica Alfredo Martins Augustin Olivier Aníbal Matos José Miguel Almeida Nuno Cruz José Carlos Alves Henrique Salgado Luís Pessoa Pedro Jorge Rui Campos Manuel Ricardo Carlos Pinho António Silva Sérgio Jesus Eduardo Silva INESC TEC Institute for Systems and Computer Engineering of Porto ISEP - School of Engineering Porto Polytechnic Institute Porto Portugal Department of Electrical and Computer Engineering University of Porto Porto Portugal Campus de Gambelas University of Algarve Portugal

This paper presents the tec4SEA research infrastructure created in Portugal to support research, development, and validation of marine technologies. It is a multidisciplinary open platform, capable of supporting research, development, and test of marine robotics, telecommunications, and sensing technologies for monitoring and operating in the ocean environment. Due to the installed research facilities and its privileged geographic location, it allows fast access to deep sea, and can support multidisciplinary research, enabling full validation and evaluation of technological solutions designed for the ocean environment. It is a vertically integrated infrastructure, in the sense that it possesses a set of skills and resources which range from pure conceptual research to field deployment missions, with strong industrial and logistic capacities in the middle tier of prototype production. tec4SEA is open to the entire scientific and enterprise community, with a free access policy for researchers affiliated with the research units that ensure its maintenance and sustainability. The paper describes the infrastructure in detail, and discusses associated research programs, providing a strategic vision for deep sea research initiatives, within the context of both the Portuguese National Ocean Strategy and European Strategy frameworks.

关键词： Oceans Optical sensors Robot sensing systems Europe Optical imaging

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Long-time Resistance and Impurities Influence on Hydrogen Sensors Based on Palladium Expansion and Bragg Gratings 28

Long-time Resistance and Impurities Influence on Hydrogen Se...

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28th International Conference on Optical Fiber Sensors, OFS 2023

作者： Almeida, Miguel A.S. de Almeida, J.M.M.M. Coelho, Luís C.C. INESC TEC Institute of Systems and Computer Engineering Technology and Science Department of Physics Faculty of Sciences University of Porto Rua do Campo Alegre Porto4169-007 Portugal Department of Physics School of Sciences and Technology University of Trás-os-Montes e Alto Douro Vila Real5001-801 Portugal

An optical fiber sensor for hydrogen detection is presented. It is based on processed fiber Bragg gratings coated with palladium thin films where its expansion due to the hydrogen adsorption is monitored as strain mea... 详细信息

ISBN: (纸本)9781957171302

关键词： Palladium

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Centralized Operation of Multi-Energy Microgrids

Centralized Operation of Multi-Energy Microgrids

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International Conference on Environment and Electrical engineering (EEEIC)

作者： Ali Esmaeel Nezhad Mohammad Sadegh Javadi Pedro H.J. Nardelli Subham Sahoo Department of Electrical Engineering School of Energy Systems LUT University Lappeenranta Finland Institute for Systems and Computer Engineering Technology and Science (INESC TEC) Porto Portugal Department of Energy Aalborg University Aalborg Denmark

This paper presents a centralized model for operating multi-energy microgrids. The proposed model is based on a linearized optimal power flow (OPF) model for handling the network constraints in the distribution networks. It is assumed that each local microgrid is self-sustaining and can be operated independently from the other microgrids. However, the network access provides more flexibility to the multi-energy microgrid operators to supply their loads. The network-based electrical energy transactions are accepted in this study, while energy transformation from electricity to the other carriers is an asset to minimize the overall operating cost of the centralized multi-energy microgrid operation. The proposed model is tested and verified on the modified IEEE 33-bus test system.

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Digital Nomads during the COVID-19 Pandemic: Evidence from Narratives on Reddit discussions 25

Digital Nomads during the COVID-19 Pandemic: Evidence from N...

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25th IEEE International Conference on computer Supported Cooperative Work in Design, CSCWD 2022

作者： De Almeida, Marcos Antonio Correia, Antonio De Souza, Jano Moreira Schneider, Daniel Systems Engineering and Computer Science Program PESC/COPPE/UFRJ Rio de Janeiro Brazil Inesc Tec University of Trás-os-Montes e Alto Douro Vila Real Portugal Postgraduate Program in Informatics PPGI/UFRJ Rio de Janeiro Brazil Tércio Pacitti Institute of Computer Applications and Research NCE/UFRJ Rio de Janeiro Brazil

ISBN: (纸本)9781665405270

In this paper, we report on new findings about the results of an empirical study which aims to investigate how the COVID-19 pandemic has been shaping nomadic work practices and also challenging the lifestyles of digital nomads (DN). To do this, we collected textual data from posts in a Reddit community. We argue that, in order to understand how to design technical solutions for the so-called 'new normal' working conditions, one way to approach this is to understand how digital nomads are being impacted in their work practices and routines, and also how they are seeing the future of their technology-mediated work-life space. Finally, we show how evidence collected from DNs about their experiences and difficulties perceived during the pandemic period can inform CSCW researchers worldwide about future design-oriented strands. © 2022 IEEE.

关键词： COVID-19

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Patch-based CNN Models for Bone Marrow Edema Detection Using MRI

Patch-based CNN Models for Bone Marrow Edema Detection Using...

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IEEE International Conference on Bioinformatics and Biomedicine (BIBM)

作者： André Gomes Tania Pereira Francisco Silva Pedro Franco Diogo Costa Carvalho Sílvia Costa Dias Hélder P. Oliveira INESC TEC - Institute for Systems and Computer Engineering Technology and Science FEUP - Faculty of Engineering University of Porto Porto Portugal INESC TEC - Institute for Systems and Computer Engineering Technology and Science FCUP - Faculty of Science University of Porto Porto Portugal CHUSJ - Centro Hospitalar e Universitário de São João Porto Portugal Faculty of Medicine University of Porto Porto Portugal

Bone marrow edema (BME) or bone marrow lesion is the term attributed to an observed signal change within the bone marrow in magnetic resonance imaging (MRI). BME can be originated from multiple mechanisms, with pain being the main symptom. The presence of BME is an unspecific but sensitive sign with a wide differential diagnosis, that may act as a guide that leads to a systematic and correct interpretation of the magnetic resonance examination. An automatic approach for BME detection and quantification aims to reduce the overload of clinicians, decreasing human error and accelerating the time to the correct diagnosis. In this work, the bone region on the MRI slice was split into several patches and a CNN-based model was trained to detect BME in each patch from the MRI slice. The learning model developed achieved an AUC of 0.853 ± 0.056, showing that the CNN-based model can be used to detect BME in the MRI and confirming the patch strategy implemented to deal with the small data size and allowing the neural network to learn the specific information related with the classification task by reducing the region of the image to be considered. A learning model that can help clinicians with BME identification will decrease the time and the error for the diagnosis, and represent the first step for a more objective assessment of the BME.

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