Thesis/Final Reports (4)

1. [Lopes2017]
   S. I. Lopes, “Estratégia e boas práticas na gestão de projetos de I&D+I no IPVC”, Final Report, Post-Graduation in Project Management, 5th Edition, PBS – Porto Business School, University of Porto, December 2017.
   DOI: 10.13140/RG.2.2.17006.43843
2. [Lopes2014]
   S. I. Lopes, “In search of reliable centimeter-level indoor positioning: a smartphone-based approach.”, Ph.D. Thesis in Eletrical Engineering, University of Aveiro, December 2014.
   Repository: http://hdl.handle.net/10773/14100
   DOI: 10.13140/RG.2.2.26076.62089
   
3. [Lopes2009]
   S. I. Lopes, “Localização de obstáculos para invisuais utilizando ultra-sons e técnicas de espacialização auditiva”, M.Sc. Thesis in Biomedical Engineering, University of Aveiro, December 2009.
   Repository: http://hdl.handle.net/10773/3873, [Presentation pdf]
   DOI: 10.13140/RG.2.2.31109.78566/4
4. [LoVe2004]
   S. I. Lopes, F. Ventura, “Intercomunicador Digital de Imagem e Som sem Fios”, Final Project Report, Degree in Electronics and Telecommunications Engineering, Department of Electronics, Telecommunications and Informatics, University of Aveiro, July 2004.
   DOI: 10.13140/RG.2.2.12264.90886/1

Books (1)

1. [Albuquerque2017]
   D.F. Albuquerque, J.M.N. Vieira, S.I. Lopes, “Indoor Acoustic Simulator: A Modeling and Simulation Framework with Doppler Effect for Broadband Ultrasonic Applications.”, LAP LAMBERT Academic Publishing, February 2017, ISBN-10: 3330042281, ISBN-13: 978-3330042285, EAN:9783330042285. URI: https://www.amazon.com/Indoor-Acoustic-Simulator-Simulation-Applications/dp/3330042281

Journal Articles (20)

1. [BaCuLo2021b] Scopus  WOS  CrossRef  | JCR Impact Factor (2019): 2.474 | SJR (2018): 0.42 (Q1) 
   P. Barros, A. Curado, S.I. Lopes, Barros, P.; Curado, A.; Lopes, S.I. Internet of Things (IoT) Technologies for Managing Indoor Radon Risk Exposure: Applications, Opportunities, and Future Challenges. Appl. Sci. 2021, 11, 11064.
   DOI: 10.3390/app112211064
2. [Mo_etal2021b] Scopus  WOS  CrossRef  | JCR Impact Factor (2019): 2.474 | SJR (2018): 0.42 (Q1) 
   A. Moradbeikie, A. Keshavarz, H. Rostami, S. Paiva, S.I. Lopes. “GNSS-Free Outdoor Localization Techniques for Resource-Constrained IoT Architectures: A Literature Review”. Appl. Sci. 2021, 11, 10793.
   DOI: 10.3390/app112210793
   
3. [Al_etal2021] Scopus  WOS  CrossRef  |JCR Impact Factor (2020): 3.549| SJR (2020): 0.71 (Q2)
   L. Alves, E. F. Cruz, S. I. Lopes, P. M. Faria, A. M. Rosado da Cruz. “Towards circular economy in the textiles and clothing value chain through blockchain technology and IoT: A review”. Waste Management & Research. October 2021, DOI:10.1177/0734242X211052858.
   
4. [LaLoCa2021] Scopus  WOS  CrossRef  |JCR Impact Factor (2019): 3.275| SJR (2019): 0.65 (Q1)
   P. Fraga-Lamas, S.I. Lopes, T.M. Fernández-Caramés, “Green IoT and Edge AI as Key Technological Enablers for a Sustainable Digital Transition towards a Smart Circular Economy: An Industry 5.0 Use Case”. Sensors 2021, 21, 5745, DOI: 10.3390/s21175745
5. [Pa_etal2021] Scopus  WOS  CrossRef  |JCR Impact Factor (2019): 3.275| SJR (2019): 0.65 (Q1)
   J. Passos, S.I. Lopes, F.M. Clemente, P.M. Moreira, M. Rico-González, P. Bezerra, L.P. Rodrigues, “Wearables and Internet of Things (IoT) Technologies for Fitness Assessment: A Systematic Review”. Sensors 2021, 21, 5418, DOI: 10.3390/s21165418
6. [LoNuCu] Scopus  WOS  CrossRef  | JCR Impact Factor (2019): 2.474 | SJR (2020): 0.75 (Q2)
   S.I. Lopes, L.J.R. Nunes, A. Curado, “Designing an Indoor Radon Risk Exposure Indicator (IRREI): An Evaluation Tool for Risk Management and Communication in the IoT Age”. Int. J. Environ. Res. Public Health 2021, 18, 7907, DOI: 10.3390/ijerph18157907
7. [ToPiLo2021] Scopus  WOS  CrossRef  | JCR Impact Factor (2019): 2.474 | SJR (2018): 0.42 (Q1) 
   N. Torres, P. Pinto, S.I. Lopes, “Security Vulnerabilities in LPWANs—An Attack Vector Analysis for the IoT Ecosystem”. Appl. Sci. 2021, 11, 3176, DOI: 10.3390/app11073176 
8. [MaLoCrCu2021] Scopus  WOS  CrossRef  | JCR Impact Factor (2019): 2.576 | SJR (2018): 0.58 (Q2) 
   P. Martins, S.I. Lopes, A. M. R. Cruz and A. Curado, “Towards a Smart & Sustainable Campus: An Application-Oriented Architecture to Streamline Digitization and Strengthen Sustainability in Academia”, Sustainability 2021, 13, 3189, DOI: 10.3390/su13063189.
9. [PeLoCaCu2020] Scopus  WOS  CrossRef  | JCR Impact Factor (2019): 3.745 | SJR (2019): 0.78 (Q1)
   F. Pereira, S.I. Lopes, N.B. Carvalho and A. Curado, “RnProbe: A LoRa-Enabled IoT Edge Device for Integrated Radon Risk Management”, in IEEE Access, vol. 8, pp. 203488-203502, 2020, DOI: 10.1109/ACCESS.2020.3036980 
10. [Pe_etal2020] Scopus  WOS  CrossRef  | JCR Impact Factor (2019): 3.275 | SJR (2019): 0.65 (Q1)
    F. Pereira, R. Correia, P. Pinho, S.I. Lopes, N. B. Carvalho, “Challenges in Resource-Constrained IoT Devices: Energy and Communication as Critical Success Factors for Future IoT Deployment”, Sensors 2020, 20, 6420, DOI: 10.3390/s20226420
11. [CuLoAn2021] Scopus  WOS  CrossRef    SJR (2019): 0.20 (Q3)
    A. Curado, S.I. Lopes, A. Antão, “On the relation of geology, natural ventilation and indoor radon concentration: the northern Portugal case study”. Comunicações Geológicas, vol. 107, nº 1, pp. 31-41. DOI: 10.34637/nnrt-cv62
12. [CuSiLo2020c] Scopus  WOS  CrossRef  
    A. Curado, J. P. Silva, S.I. Lopes, “Radon Risk Reduction in Public Buildings with Regular Occupancy: A Case Study in Minho Region, Portugal”, IOP Conf. Ser.: Earth and Environmental Science, Volume 503, DOI: 10.1088/1755-1315/503/1/012068
13. [CuSiLo2020b] Scopus  WOS  CrossRef  | JCR Impact Factor: 3.83  | SJR (2018): 1.4 (Q1)
    A. Curado, J. P. Silva, S.I. Lopes, “Radon risk assessment in a low-energy consumption school building: A dosimetric approach for effective risk management”, Energy Reports, Volume 6, Supplement 1, 2020, Pages 897-902, ISSN 2352-4847, DOI: 10.1016/j.egyr.2019.11.155
14. [CuSiLo2020a] Scopus  WOS  CrossRef
    A. Curado, J. P. Silva, S.I. Lopes, “Radon risk analysis in a set of public buildings in Minho region, Portugal: from short-term monitoring to radon risk assessment”, Procedia Structural Integrity, Volume 22, 2019, Pages 386-392, ISSN 2452-3216, DOI: 10.1016/j.prostr.2020.01.048
15. [CuSiLo2019a] Scopus  WOS  CrossRef
    A. Curado, J. P. Silva, S.I. Lopes, “Radon Risk Management in public buildings in northwest Portugal: from short-term characterization to the design of specific mitigation actions”, International Journal of Recent Technology and Engineering, Volume 8 (1), 2019, Pages 90-96, ISSN 2277-3878, DOI: 01.1617/vol6iss5pid001001.
16. [LoSiAnCu2018] Scopus  WOS  CrossRef
    S.I. Lopes, J.P. Silva, A. Antão, A. Curado, “Short-Term Characterization of the Indoor Air Radon Concentration in a XII Century Monastery converted into a School Building”, Energy Procedia, Volume 153, 2018, Pages 303-308, ISSN 1876-6102, DOI: 10.1016/j.egypro.2018.10.036.
17. [CuSiCaLo2017] Scopus  WOS  CrossRef
    A. Curado, J.P. Silva, L. Carvalho, S.I. Lopes, “Indoor Radon Concentration Assessment in a Set of Single Family Houses: Case Study held in Barcelos, North of Portugal”, Energy Procedia, Volume 136, 2017, Pages 109-114, ISSN 1876-6102, DOI: 10.1016/j.egypro.2017.10.295
18. [Lo_etal2015] Scopus  WOS  CrossRef  | JCR Impact Factor: 2.769  | SJR (2018): 0.46 (Q1)
    S.I. Lopes, J. M. N. Vieira, J. Reis, D. F. Albuquerque, N. B. Carvalho, “Accurate smartphone indoor positioning using a WSN infrastructure and non-invasive audio for TDoA estimation”, Pervasive and Mobile Computing Journal, Volume 20, 2015, Pages 29-46, ISSN 1574-1192, DOI: 10.1016/j.pmcj.2014.09.003.
19. [Al_etal2015] Scopus  WOS  CrossRef  | JCR Impact Factor: 2.297  | SJR (2018): 0.82 (Q1)
    D.F. Albuquerque, José M.N. Vieira, S.I. Lopes, Carlos A.C. Bastos, Paulo J.S.G. Ferreira, “Indoor acoustic simulator for ultrasonic broadband signals with Doppler effect”. Journal of Applied Acoustics, Volume 97, 2015, Pages 140-151, ISSN 0003-682X, DOI: 10.1016/j.apacoust.2015.04.010
20. [Lo_etal2012b] Scopus  WOS  CrossRef
    S.I. Lopes, J. M. N. Vieira, O. F. F. Lopes, N. A. S. Dias, P. R. M. Rosas, “MobiFree: A Set of Electronic Mobility Aids for the Blind”. Procedia-Computer Science Journal, Volume 14, 2012, Pages 10-19, ISSN 1877-0509, DOI: 10.1016/j.procs.2012.10.002.

Book Series (10)

1. [AzCuCuLo2021]   CrossRef
   Azeredo P., Curralo A., Curado A., Lopes S.I. (2022) A Methodological Design Approach for Health Education: Indoor Radon Exposure Case Study. In: Martins N., Brandão D. (eds) Advances in Design and Digital Communication II. DIGICOM 2021. Springer Series in Design and Innovation, vol 19. Springer, Cham, DOI:10.1007/978-3-030-89735-2_44
2. [MeCuCuLo2021] Scopus  CrossRef
   Mendes J., Curralo A., Curado A., Lopes S.I. (2021) Fostering Sustainability on Campus: Design of an IoT-Enabled Smartbottle for Plastic Reduction in the Academic Environment. In: Raposo D., Martins N., Brandão D. (eds) Advances in Human Dynamics for the Development of Contemporary Societies. AHFE 2021. Lecture Notes in Networks and Systems, vol 277. Springer, Cham. DOI: 10.1007/978-3-030-80415-2_3
3. [AbLoMaCu2021] Scopus  CrossRef
   Abreu A., Lopes S.I., Manso V. and Curado A. (2021). “Low-Cost LoRa-Based IoT Edge Device for Indoor Air Quality Management in Schools”. In: Paiva S., Lopes S.I., Zitouni R., Gupta N., Lopes S.F., Yonezawa T. (eds) Science and Technologies for Smart Cities. SmartCity360° 2020. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 372. Springer, Cham, DOI: 10.1007/978-3-030-76063-2_18
4. [MaLoCu2021] Scopus  CrossRef
   Martins P., Lopes S.I., Curado A. (2021) Designing a FIWARE-Based Smart Campus with IoT Edge-Enabled Intelligence. In: Rocha Á., Adeli H., Dzemyda G., Moreira F., Ramalho Correia A.M. (eds) Trends and Applications in Information Systems and Technologies. WorldCIST 2021. Advances in Intelligent Systems and Computing, vol 1367. Springer, Cham, DOI: 10.1007/978-3-030-72660-7_53.
5. [Az_etal2019a] Scopus   CrossRef
   R. Azevedo, J. P. Silva, N. Lopes, A. Curado and S. I. Lopes, “Short-Term Indoor Radon Gas Assessment in Granitic Public Buildings: A Multi-Parameter Approach”. In: Rodrigues H., Gaspar F., Fernandes P., Mateus A. (eds) Sustainability and Automation in Smart Constructions. Advances in Science, Technology & Innovation (IEREK Interdisciplinary Series for Sustainable Development). 2021, Springer, Cham, DOI: 10.1007/978-3-030-35533-3_50
6. [MeCuCuLo2020]   CrossRef
   Mendes J., Curralo A., Curado A., Lopes S.I. (2021).  “The Sustainable Smartbottle: A Proposed Design Methodology to Minimize Plastic Pollution.” In: Martins N., Brandão D. (eds) Advances in Design and Digital Communication. Digicom 2020. Springer Series in Design and Innovation, vol 12. Springer, Cham, DOI: 10.1007/978-3-030-61671-7_27
7. [LoBoMoCu2020] Scopus   CrossRef
   Lopes S.I., Bogers S., Moreira P.M., Curado A. (2020). “A Visual Analytics Approach for Effective Radon Risk Perception in the IoT Era.” In: Santos H., Pereira G., Budde M., Lopes S., Nikolic P. (eds) Science and Technologies for Smart Cities. SmartCity 360 2019. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 323. Springer, Cham, DOI: 10.1007/978-3-030-51005-3_10
8. [MaLoPeCu2020] Scopus   CrossRef
   Martins P., Lopes S.I., Pereira F., Curado A. (2020). “RnMonitor: An IoT-Enabled Platform for Radon Risk Management in Public Buildings.” In: Santos H., Pereira G., Budde M., Lopes S., Nikolic P. (eds) Science and Technologies for Smart Cities. SmartCity 360 2019. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 323. Springer, Cham, DOI: 10.1007/978-3-030-51005-3_6
   
9. [Az_etal2020] Scopus   CrossRef
   Azevedo R., Silva J.P., Lopes N., Curado A., Lopes S.I. (2020). “Short-Term Indoor Radon Gas Study in a Granitic School Building: A Comparative Analysis of Occupation Periods.” In: Santos H., Pereira G., Budde M., Lopes S., Nikolic P. (eds) Science and Technologies for Smart Cities. SmartCity 360 2019. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 323. Springer, Cham, DOI: 10.1007/978-3-030-51005-3_9
10. [Lo_etal2019a]  Scopus    CrossRef
    S.I. Lopes, F. Pereira, J.M.N. Vieira, N.B. Carvalho and A. Curado (2019), “Design of Compact LoRa Devices for Smart Building Applications”. In: Afonso J., Monteiro V., Pinto J. (Eds.) Green Energy and Networking. GreeNets 2018. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 269, pp 142-153, ISSN 1867-8211, Springer, Cham, DOI: 10.1007/978-3-030-12950-7_12
    

Conference Proceedings (50)

1. [Mo_etal2021] (Accepted in 10/11/2021)
   A. Mosaddegh, H. Rostami, A. Keshavarz, S.I. Lopes, S. Paiva, “A Hybrid Framework for Visual Positioning: Combining Convolutional Neural Networks with Ontologies”, Mobility-IoT 2021 – 8th EAI International Conference on Mobility, IoT and Smart Cities, Virtual, November 24-26, 2021.
   
2. [SaGoPaLo2021] (Accepted in 30/10/2021)
   R. Santil, B. Gomes, S. Paiva, S.I. Lopes, “Crowd Quantification with Flow Direction Estimation: A Low-Cost IoT-Enabled Solution”, IEEE GCAIoT2021, 2021 IEEE Global Conference on Artificial Intelligence and Internet of Things (GCAIoT), Expo 2020, Dubai, 13 – 16 December, 2021.
   
3. [SiBaLo2021] (Accepted in 22/10/2021)
   João Silva, Luís Barreto, and S.I. Lopes, “Security in V2X communications: a Comparative Analysis of Simulation/Emulation Tools”, SmartGov 2021 – 3rd EAI International Conference on Smart Governance for Sustainable Smart Cities, Virtual, November 24-26, 2021.
4. [Ro_etal2021] (Accepted in 20/10/2021)
   D. Rocha, P. Rocha, J. Ribeiro, and S.I. Lopes, “Identification and Classification of Human Body Parts for Contactless Screening Systems: an Edge-AI Approach”,  Edge-IoT 2021 – 2nd EAI International Conference on Intelligent Edge Processing in the IoT Era, Virtual, November 24-26, 2021.
5. [Mo_etal2021] (Accepted in 18/10/2021)
   A. Moradbeikie, A. Keshavarz, H. Rostami, S. Paiva, S.I. Lopes, “Improvement of RSSI-based LoRaWAN Localization using Edge-AI”, Edge-IoT 2021 – 2nd EAI International Conference on Intelligent Edge Processing in the IoT Era, Virtual, November 24-26, 2021.
6. [BaCuLo2021]
   P. Barros, A. Curado and S.I. Lopes, “Indoor Radon Assessment in School Buildings: Where, When and How to measure?”, Air Pollution 2021 – 29th International Conference on Modelling, Monitoring and Management of Air Pollution, 26–28 October, 2021.
7. [Lo_etal2021] Scopus  WOS  CrossRef
   S. I. Lopes, P. Pinho, P. Marques, C. Abreu, N. B. Carvalho and J. Ferreira, “Contactless Smart Screening in Nursing Homes: an IoT-enabled solution for the COVID-19 era,” 2021 17th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), 2021, pp. 145-150, doi: 10.1109/WiMob52687.2021.9606275.
8. [Br_etal2021] Scopus  WOS  CrossRef
   B. Braga, G. Queirós, C. Abreu and S. I. Lopes, “Assessment of Low-Cost Infrared Thermography Systems for Medical Screening in Nursing Homes,” 2021 17th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), 2021, pp. 157-162, doi: 10.1109/WiMob52687.2021.9606256.
   
9. [CuLo2021]
   A. Curado, S. I. Lopes, IPVC Smart & Sustainable Campus (IPVC-S2C): o Campus como Ecossistema de Inovação, CCS 2021 – 3ª Conferência Campus Sustentável. Instituto Politécnico de Lisboa, 28-29 de outubro, 202, Lisboa, Portugal, URI: https://ccs2021.ipl.pt/
10. [FSi_etal2021] Scopus  WOS  CrossRef
    F. Silva, R. Almeida, P. Pinho, P. Marques and S. I. Lopes, “Evaluation of a Low-Cost COTS Bio Radar for Vital Signs Monitoring,” 2021 IEEE International Smart Cities Conference (ISC2), 2021, pp. 1-6, doi: 10.1109/ISC253183.2021.9562898.
    
11. [JSi_etal2021] (Accepted in 13/6/2021)
    J. Silva, N. Lopes, A. Curado, L. J. R. Nunes, S. I. Lopes, “Designing a qualitative pre-diagnosis model for evaluation of radon potential in indoor environments”, ICEER 2021 –  8th International Conference on Energy and Environment Research, 13- 17 September, Virtual conference, 2021.
    
12. [ToMaPiLo2021] Scopus  WOS  CrossRef
    N. Torres, P. Martins, P. Pinto and S. I. Lopes, “Smart & Sustainable Mobility on Campus: A secure IoT tracking system for the BIRA Bicycle,” 2021 16th Iberian Conference on Information Systems and Technologies (CISTI), 2021, pp. 1-7, doi: 10.23919/CISTI52073.2021.9476495.
    
13. [NePaLo2021] Scopus  WOS  CrossRef
    J. Neiva, S. Paiva and S. I. Lopes, “Monitoring the hydraulic stability of Antifer blocks: an IoT-based approach,” 2021 16th Iberian Conference on Information Systems and Technologies (CISTI), 2021, pp. 1-6, doi: 10.23919/CISTI52073.2021.9476314.
    
14. [CuAlSi2020]
    A. Curado, B. Alves e S. I. Lopes, “Da Redução do Consumo de Plástico à Prevenção do Lixo Marinho: Projeto RefillH2O”, CCS 2020 – 2ª Conferência Campus Sustentável. Instituto Politécnico de Tomar, 30 de outubro, 2020, Tomar, Portugal, URI: https://tinyurl.com/3jc24385.
15. [PeCaPiLo2020] Scopus  WOS  CrossRef
    H. Pereira, R. Carreira, P. Pinto and S. I. Lopes, “Hacking the RFID-based Authentication System of a University Campus on a Budget,” 2020 15th Iberian Conference on Information Systems and Technologies (CISTI), Sevilla, Spain, 2020, pp. 1-5, DOI: 10.23919/CISTI49556.2020.9140943.
    
16. [CuLo2019]
    A. Curado, S. I. Lopes, “O Gás Radão em Edifícios Escolares: da Caraterização à Mitigação”, CCS 2019 – 1.ª Conferência Campus Sustentável. Faculdade de Engenharia da Universidade do Porto (FEUP), 31 de outubro de 2019, Porto, Portugal, URI: https://repositorio-aberto.up.pt/bitstream/10216/123291/3/362107.2.pdf
17. [PeLoCa2019c] Scopus  WOS  CrossRef
    F. Pereira, S. I. Lopes and N. B. Carvalho, “Design of a Cost-Effective Multimodal IoT Edge Device for Building Occupancy Estimation,” 2019 IEEE International Smart Cities Conference (ISC2), Casablanca, Morocco, 2019, pp. 122-128, DOI:
    10.1109/ISC246665.2019.9071717
18. [Lo_etal2019b] Scopus  WOS  CrossRef
    S. I. Lopes, P. M. Moreira, A. M. Cruz, P. Martins, F. Pereira and A. Curado, “RnMonitor: a WebGIS-based platform for expedite in situ deployment of IoT edge devices and effective Radon Risk Management,” 2019 IEEE International Smart Cities Conference (ISC2), Casablanca, Morocco, 2019, pp. 451-457, DOI: 10.1109/ISC246665.2019.9071789
    
19. [CuSiLo2019d]
    A. Curado, J. P. Silva, S.I. Lopes, “Radon Risk Reduction in Public Buildings with Regular Occupancy: a Case Study in Minho Region, Portugal”, SBE Temuco 2019 – Sustainable and Built Environment: Urban Planning, Global Problems and Local Policies, October 16–18, Temuco, Chile, URI: https://sbe19temuco.cl/parallel-sessions/
20. [CuSiLo2019c]
    A. Curado, J.P. Silva, S.I. Lopes, “Radon Risk Assessment in a High-Occupancy School Building: a dosimetric approach for Radon Risk Management”, ICEER2019 – 6th International Conference on Energy and Environment Research, 22-25 July 2019, Aveiro, Portugal. 
21. [CuSiLo2019b]
    A. Curado, J.P. Silva, S.I. Lopes, “Radon Risk Analysis in a Set of Public Buildings in Minho Region, Portugal: From Short-Term Monitoring to Radon Risk Assessment”, IRAS2019 – 1st International Symposium on Risk Analysis and Safety of Complex Structures and Components, 1-2 July 2019, Porto, Portugal. URI: https://tinyurl.com/y3t9j7bn
22. [Pe_etal2019]  CrossRef
    F. Pereira, S.I. Lopes, J.M.N. Vieira, N.B. Carvalho and A. Curado, “Using Compact LoRa Devices for In-Building Communications”, In Proceedings of the 4th Smart City 360° Summit 2018 Demos, , H. Santos and F. Portela (eds.), EAI 2019, ISBN: 978-1-63190-172-0, ISSN: 2593-7650, DOI: 10.4108/eai.21-11-2018.2280604
    
23. [Lo_etal2018a] Scopus    CrossRef
    S.I. Lopes, A. Cruz, P.M. Moreira, C. Abreu, J.P. Silva, N. Lopes, J. Vieira and A. Curado, “On the design of a Human-in-the-Loop Cyber-Physical System for online monitoring and active mitigation of indoor Radon gas concentration,” 2018 IEEE International Smart Cities Conference (ISC2), Kansas City, MO, USA, 2018, pp. 1-8, DOI: 10.1109/ISC2.2018.8656777
24. [CuLo2018]
    A. Curado, S.I. Lopes, “RnMonitor: Online Monitoring Infrastructure and Strategies for Active Indoor Air Radon Mitigation”, CARIBMAT 2018: 2nd Caribbean Conference on Functional Materials, Cartagena de Indias (Colombia), February 6-9, 2018.
25. [Pe_etal2017] Scopus  WOS  CrossRef
    F. Pereira, P. Pinho, R. Gonçalves, N.B. Carvalho, J. Lobato, S.I. Lopes, “Antenna design for ultra-compact Bluetooth devices”, 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, San Diego, CA, USA, 2017, pp. 2619-2620. DOI: 10.1109/APUSNCURSINRSM.2017.8073352
26. [SiCuCoLo2017]
    J.P. Silva, A. Curado, G. Coelho, S.I. Lopes, “Indoor radon concentration assessment of an old granite manor house requalified as an office in the historic center of Viana do Castelo, Portugal”, TEERAS2017: Third East-European Radon Symposium 2017, 15-19 May 2017, Sofia, Bulgaria, URI: https://tinyurl.com/y8t5dfpk
27. [AlViLoAgAl2016b] Scopus  WOS  CrossRef
    D. F. Albuquerque, J. M. N. Vieira, S. I. Lopes, T. Aguilera and F. J. Álvarez, “High energy OFDM pulse design algorithm for acoustic ToF ranging and localization,” 2016 International Conference on Indoor Positioning and Indoor Navigation (IPIN), Alcala de Henares, Spain, 2016, pp. 1-6. DOI: 10.1109/IPIN.2016.7743698.
28. [AlViLoAgAl2016a] Scopus  WOS  CrossRef
    D. F. Albuquerque, J. M. N. Vieira, S. I. Lopes, T. Aguilera and F. J. Álvarez, “Doppler resilient modulation in a CDMA-based acoustic local positioning system,” 2016 International Conference on Indoor Positioning and Indoor Navigation (IPIN), Alcala de Henares, Spain, 2016, pp. 1-8. DOI: 10.1109/IPIN.2016.7743611.
29. [Lo_etal2016] Scopus CrossRef
    S. I. Lopes, R. Bexiga, J.P. Araújo, J.L. Cerqueira, C. Abreu, C. Paredes and J.M. Alonso, 2016. Precision livestock farming for reproductive performance optimization: a survey. Food Futures – Ethics, Science & Culture. Edited by: I. Anna S. Olsson, Sofia M. Araújo and M. Fátima Vieira. EurSafe 2016, Porto, Portugal, 29 sep-1 oct. Wageningen Adademic Pub, 587-592, ISBN: 978-90-8686-288-7; e-ISBN:978-90-8686-834-6. DOI: 10.3920/978-90-8686-834-6.
30. [MiMeLo2016]
    M. Migliardi, A. Merlo, S. I. Lopes, “Crowd-Sourcing an Ontology: Is It Feasible?”, Proc. of the International Conference on Data Compression, Communication, Processing and Security (CCPS2016), Hotel Cetus – Cetara – Salerno, Italy, September 22-23, URI: https://tinyurl.com/y75h7r2z
31. [CuLo2016]
    A. Curado, S. I. Lopes, “Impact of the human occupation on indoor radon concentration: a study based on in-situ measurements for a set of households in Alto-Minho, Portugal”, 4th European Conference on Behaviour and Energy Efficiency – BEHAVE 2016, 8 – 9 September 2016, University of Coimbra, Portugal, URI: https://tinyurl.com/ybrujb3e 
32. [LoAbLiAl2015]
    S. I. Lopes, C. Abreu, S. Lima and R. Alves, “WSN-based Vineyard Monitoring System for Automatic Managing of Grape Maturity”, In Proceedings of the 10th Conference on Telecommunications – CONFTELE 2015, Aveiro, Instituto de Telecomunicações, 2015, XVI, 473 p., URI: https://tinyurl.com/ycgmzxey
33. [Al_etal2015b] Scopus  WOS  CrossRef
    S. J. Alves, F. A. Martins, A. I. Prata, S. I. Lopes, J. C. Duarte, P. Jesus, N. Silva, A. S. Oliveira and N. B. Carvalho, “High Performance Microwave Point-to-Point Link for 5G Backhaul with Flexible Spectrum Aggregation”, IMS2015 International Microwave Symposium 2015, 17-22 May, Phoenix, USA, DOI: 10.1109/MWSYM.2015.7166817.
34. [LoViAl2015] Scopus  WOS  CrossRef
    S. I. Lopes, J. N. V. Vieira, D. Albuquerque, “Analysis of the Perceptual Impact of High Frequency Audio Pulses in Smartphone-based Positioning Systems”. In Proceedings of the 2015 IEEE International Conference on Industrial Technology, Seville, Spain, 17-19th March 2015, pp.3398-3403, DOI: 10.1109/ICIT.2015.7125603.
35. [Ag_etal2015] Scopus  WOS  CrossRef
    T. Aguilera, F. J. Álvarez, A. Sánchez, D. Albuquerque, J. N. V. Vieira and S. I. Lopes, “Characterization of the Near-Far Problem in a CDMA-Based Acoustic Localization System”. In Proceedings of the 2015 IEEE International Conference on Industrial Technology, Seville, Spain, 17-19th March 2015, pp.3404-3411, DOI: 10.1109/ICIT.2015.7125604.
36. [Ca_etal2014]
    G. Campos, P. Dias, J. N. V. Vieira, J. Santos, C. Mendonça, J. P. Lamas, N. Silva, S. I. Lopes, “Acousticave: Auralisation Models and Applications in Virtual Reality Environments”, European Symposium on Smart Cities and Environmental Acoustics, 29-31 October 2014, Murcia, Spain, URI: https://tinyurl.com/ynz66b34
37. [LoViCaDi2014]
    S. I. Lopes, J. M. N. Vieira, G. Campos, P. Dias, “Sistema de Realidade Aumentada Áudio 3D para Dispositivos iOS”. In Proceedings of the 12th Audio Engineering Society Brazil Conference (AES Brazil 2014), R. R. A. Faria (ed.), ISSN 2177-529X, pp.100-104, São Paulo, Brazil, 13-15 May, 2014, URI: https://tinyurl.com/c96z7y5z
38. [LoViReAlCa2013]
    S. I. Lopes, J. M. N. Vieira, J. Reis,  D. F. Albuquerque and N. B. Carvalho, “Accurate Smartphone Indoor Positioning Using Non-Invasive Audio”. 2013 International Conference on Indoor Positioning and Indoor Navigation – IPIN 2013. Montbéliard – Belfort, France, 28-31st October, 2013, URI: https://tinyurl.com/hz3435uh
39. [AlViLoBaFe2013]
    D. F. Albuquerque, J. M. N. Vieira, S. I. Lopes, C. A. C. Bastos, P. J. S. G. Ferreira, “OFDM Pulse Design with Low PAPR for Ultrasonic Location and Positioning Systems”. 2013 International Conference on Indoor Positioning and Indoor Navigation – IPIN 2013. Montbéliard – Belfort, France, 28-31st October, 2013, URI: https://tinyurl.com/y7jy2u5j
40. [Al_etal2013]
    M. A. Alves, R. S. Sousa, S. I. Lopes, V. Almeida, A. J. S. Ferreira, “Voice Type Discovery”. In the 19th edition of the Portuguese Conference on Pattern Recognition – RecPad 2013, Instituto Superior Técnico, Lisbon, Portugal, November the 1st, 2013, URI: https://tinyurl.com/ybec7at8
41. [Lo_etal2013]
    S. I. Lopes, A. Oliveira, J. M. N. Vieira, G. Campos, P. Dias, R. Costa, “Real-Time Audio Augmented Reality System for Pervasive Applications”. In Proceedings of the 11th Audio Engineering Society Brazil Conference (AES Brazil 2013), R. R. A. Faria (ed.), ISSN 2177-529X, pp.94-97, São Paulo, Brazil, 7-9 May, 2013, URI: https://tinyurl.com/y7x84fyg
42. [Lo_etal2012a] Scopus  CrossRef
    S. I. Lopes; J. M. N. Vieira; D. F. Albuquerque, “High Accuracy 3D Indoor Positioning Using Broadband Ultrasonic Signals”. Trust, Security and Privacy in Computing and Communications (TrustCom), 2012 IEEE 11th International Conference on, pp.2008-2014, 25-27 June, 2012, DOI: 10.1109/TrustCom.2012.172.
43. [AlViCaLo2011]
    D. Almeida , J. M. N. Vieira, G. Campos, S. I. Lopes, “Realidade aumentada áudio para aplicações pervasivas”, In the 13th Meeting of the Portuguese Association of Audio Engineering (APEA), Portuguese Section of the Audio Engineering Society (AES), EESMAE/IPP Porto-Portugal, 7 e 8 de Outubro, 2011, URI: https://tinyurl.com/ybkhnyro
44. [AlViLoBaFe2011b]
    D. F. Albuquerque, J. M. N. Vieira, S. I. Lopes, C. A. C. Bastos, P. J. S. G. Ferreira, “Indoor Ultrasonic Simulator for Moving Objects Using Delay Filters”. In Proceedings of the 2011 International Conference on Indoor Positioning and Indoor Navigation (IPIN’2011); Moreira, Adriano J. C.; Meneses, Filipe M. L. (eds.), Guimarães, Portugal, 21-23 Setembro 2011, ISBN: 978-972-8692-63-6, URI: https://tinyurl.com/ydfj8bwh
45. [AlViLoBaFe2011a]
    D. F. Albuquerque, J. M. N. Vieira, S. I. Lopes, C. A. C. Bastos, P. J. S. G. Ferreira, “Indoor Ultrasonic Transfer Function for Moving Objects”. In Proceedings of the 2011 International Conference on Indoor Positioning and Indoor Navigation (IPIN’2011); Moreira, Adriano J. C.; Meneses, Filipe M. L. (eds.), Guimarães, Portugal, 21-23 Setembro 2011, ISBN: 978-972-8692-63-6, URI: https://tinyurl.com/y8z4e3aq
46. [CoLoAb2010]
    C. Colaço, S. I. Lopes, C. Abreu, “DSP-based Multi-channel Stethoscope”. In the 12th Meeting of the Portuguese Association of Audio Engineering (APEA), Portuguese Section of the Audio Engineering Society (AES). Aveiro, Portugal, 8-9 October 2010, URI: https://tinyurl.com/yaqj4ljg
47. [ViLoBaFo2007] Scopus  WOS 
    J. M. N. Vieira, S. I. Lopes, C. A. C. Bastos, P. N. Fonseca, “Ultrasound sensor array for robust location.”, In Sapaty, P and Filipe, J, editor, Multi-Agent Robotic Systems, Proceedings, pages 84–93, 2007. 3rd International Workshop on Multi-Agent Robotic Systems, Angers, FRANCE, MAY, 2007, ISBN: 978-972-8865-85-6, DOI: 10.5220/0001634200840093.
48. [Al_etal2006]
    L. Almeida, J. L. Azevedo, G. Corrente, M. B. Cunha, A. Ferdowsi, J. P. Figueiredo, P. Fonseca, S. I. Lopes, R. Marau, N. Lau, P. Pedreiras, A. Pereira, A. Pinho, J. Rocha, F. Santos, L. S. Lopes, V. Silva, J. M. N. Vieira, “CAMBADA’2006: Team Description Paper”. Encontro Científico do Festival Nacional de Robótica 2006. Guimarães, Portugal, April 2006, URI: https://tinyurl.com/ybtfvdd3
49. [ViLoBaFo2006]
    J. M. N. Vieira, S. I. Lopes, C. A. C. Bastos, P. N. Fonseca, “Sistema de localização utilizando ultra-sons”. Encontro Científico do Festival Nacional de Robótica 2006. Guimarães, Portugal, April 2006, URI: https://tinyurl.com/yaujpczy
50. [ViLoBaFo2005]
    J. M. N. Vieira, S. I. Lopes, C. A. C. Bastos, P. N. Fonseca, “Sistema de localização mútua para robots utilizando ultra-sons”. In 3as Jornadas de Engenharia Electrónica e Telecomunicações e de Computadores – JETC05. Lisboa, Portugal, Novembro 2005, URI: https://tinyurl.com/yag6vn4p

Newsletter Articles (1)

1. [Mo_etal2021]
   A. Moradbeikie, A. Keshavarz1, H. Rostami, S. Paiva, and S. I. Lopes, “LoRaWAN as a Cost-Effective Technology for Assets Localization in Smart Harbors”, IEEE Smart Cities, Special Issue on Smart Transportation, October, 2021, URI: https://smartcities.ieee.org/newsletter/october-2021.

Book Chapters (1)

1. [Lo_etal2019b]
   S.I. Lopes, S. Lima, T. Santos, J. Palma and D. Miranda, “Otimização da navegabilidade das pessoas com deficiência visual reduzida em espaços urbanos: I&D de utilidade prática e inclusiva.”, Célia Sousa (ed.), Tecnologias de reabilitação e apoio para o bem estar e acessibilidades, 2019 Inovatec, Portugal, pp.53-62. URI: https://tinyurl.com/yxzdferp 

Technical Reports (1)

1. [TR_Lopes2009]
   S. I. Lopes, “Segurança no internamento pediátrico do HSM: Análise das soluções tecnológicas alternativas”, Relatório Técnico, Hospital de São Marcos, Braga, Junho de 2009.