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In this work, the development of an energy recovery control unit to be incorporated in the light-emitting diodes (LEDs) lighting systems of heavy-duty vehicles is presented. This innovative industrial product adopts modern power electronics technology to improve existing trucks’ LED lighting system by eliminating the so far inevitable power consumption by the conventional central control unit of the majority of these vehicles, which is obligatory for the uninterruptable operation of their lighting system. The main idea of this innovative product is its capability to virtually increase the lighting system power consumption without actually consuming this amount of energy, thus facilitating the central control unit requirements regarding these vehicles in an energy-conscious way. Under this light, a mature power converter’s topology is employed to draw the proper amounts of power from the vehicle’s batteries supply, to the level that the central control unit recognizes, and return this energy back to the batteries. The tests results of the developed industrial product highlight the energy saving potential of the proposed energy recovery scheme, while the Life Cycle Cost Analysis (LCCA) results confirm its techno-economical and environmental profit for the truck applications under study.
Nena Apostolidou; Fotis Valsamas; Dimitris Baros; Michael Loupis; Vasilios Dasteridis; Charalampos Kokkinis. Innovative Energy-Recovery Unit for the LED-Lighting System of Heavy-Duty Vehicles. Clean Technologies 2021, 3, 581 -593.
AMA StyleNena Apostolidou, Fotis Valsamas, Dimitris Baros, Michael Loupis, Vasilios Dasteridis, Charalampos Kokkinis. Innovative Energy-Recovery Unit for the LED-Lighting System of Heavy-Duty Vehicles. Clean Technologies. 2021; 3 (3):581-593.
Chicago/Turabian StyleNena Apostolidou; Fotis Valsamas; Dimitris Baros; Michael Loupis; Vasilios Dasteridis; Charalampos Kokkinis. 2021. "Innovative Energy-Recovery Unit for the LED-Lighting System of Heavy-Duty Vehicles." Clean Technologies 3, no. 3: 581-593.
Climate change is one factor increasing the risk of hydro-meteorological hazards globally. The use of nature-based solutions (NbS), and more specifically ecosystem-based disaster risk reduction measures (Eco-DRR), has become a popular response for risk reduction that also provides highly-valued co-benefits. Public acceptance is of particular importance for NbS since they often rely on local collaborative implementation, management, and monitoring, as well as long-term protection against competing societal interests. Although public engagement is a common goal of NbS projects, it is rarely carried out with a sufficient understanding of the (de)motivating factors tied to public perceptions. Successful collaboration demands consideration of societal attitudes and values in relation to risk, nature, and place. However, existing research does not sufficiently explore these themes together, their interactions, and their implications for the public acceptance of NbS. This may lead to misaligned public expectations and failed participatory initiatives, while jeopardizing the success of NbS projects and their continued funding and uptake. We conducted citizen surveys within local NbS “host” communities to determine the degree of pro-NbS attitudes and behavior, associated variables, and how these may be leveraged to increase acceptance. We compared results across sites, relying primarily on correlations and regression models along with survey comments and expert knowledge. Three distinct rural NbS being implemented within the OPERANDUM project aim to reduce risk from (socio-)natural hazards in Scotland (landslides and coastal erosion; n = 66 respondents), Finland (eutrophication and algal blooms; n = 204) and Greece (river flooding and water scarcity; n = 84). Our research thus centers on rural NbS for risk reduction within a large EU project. Trust in implementers is a consistent factor for defining attitudes towards the NbS across the sites, and attitudes are strongly associated with respondents’ commitment to nature and behavioral acceptance (i.e., willingness to engage). Behaviorial acceptance is most consistently predicted by connectedness to place and the extent of expected future impacts. Skepticism of NbS effectiveness leads to high public demand for relevant evidence. To increase public acceptance, we recommend greater framing of NbS in relation to place-based values as well as demonstration of the effectiveness of NbS for risk reduction. However, distinct hazard types, proposed NbS, and historical characteristics must be considered for developing strategies aimed at increasing acceptance. An understanding of these characteristics and their interactions leads to evidence-based recommendations for our study sites and for successful NbS deployment in Europe and beyond.
Carl C. Anderson; Fabrice G. Renaud; Stuart Hanscomb; Karen E. Munro; Alejandro Gonzalez-Ollauri; Craig S. Thomson; Eija Pouta; Katriina Soini; Michael Loupis; Depy Panga; Maria Stefanopoulou. Public Acceptance of Nature-Based Solutions for Natural Hazard Risk Reduction: Survey Findings From Three Study Sites in Europe. Frontiers in Environmental Science 2021, 9, 1 .
AMA StyleCarl C. Anderson, Fabrice G. Renaud, Stuart Hanscomb, Karen E. Munro, Alejandro Gonzalez-Ollauri, Craig S. Thomson, Eija Pouta, Katriina Soini, Michael Loupis, Depy Panga, Maria Stefanopoulou. Public Acceptance of Nature-Based Solutions for Natural Hazard Risk Reduction: Survey Findings From Three Study Sites in Europe. Frontiers in Environmental Science. 2021; 9 ():1.
Chicago/Turabian StyleCarl C. Anderson; Fabrice G. Renaud; Stuart Hanscomb; Karen E. Munro; Alejandro Gonzalez-Ollauri; Craig S. Thomson; Eija Pouta; Katriina Soini; Michael Loupis; Depy Panga; Maria Stefanopoulou. 2021. "Public Acceptance of Nature-Based Solutions for Natural Hazard Risk Reduction: Survey Findings From Three Study Sites in Europe." Frontiers in Environmental Science 9, no. : 1.
Nature-based solutions (NBS) for hydro-meteorological risks (HMRs) reduction and management are becoming increasingly popular, but challenges such as the lack of well-recognised standard methodologies to evaluate their performance and upscale their implementation remain. We systematically evaluate the current state-of-the art on the models and tools that are utilised for the optimum allocation, design and efficiency evaluation of NBS for five HMRs (flooding, droughts, heatwaves, landslides, and storm surges and coastal erosion). We found that methods to assess the complex issue of NBS efficiency and cost-benefits analysis are still in the development stage and they have only been implemented through the methodologies developed for other purposes such as fluid dynamics models in micro and catchment scale contexts. Of the reviewed numerical models and tools MIKE-SHE, SWMM (for floods), ParFlow-TREES, ACRU, SIMGRO (for droughts), WRF, ENVI-met (for heatwaves), FUNWAVE-TVD, BROOK90 (for landslides), TELEMAC and ADCIRC (for storm surges) are more flexible to evaluate the performance and effectiveness of specific NBS such as wetlands, ponds, trees, parks, grass, green roof/walls, tree roots, vegetations, coral reefs, mangroves, sea grasses, oyster reefs, sea salt marshes, sandy beaches and dunes. We conclude that the models and tools that are capable of assessing the multiple benefits, particularly the performance and cost-effectiveness of NBS for HMR reduction and management are not readily available. Thus, our synthesis of modelling methods can facilitate their selection that can maximise opportunities and refute the current political hesitation of NBS deployment compared with grey solutions for HMR management but also for the provision of a wide range of social and economic co-benefits. However, there is still a need for bespoke modelling tools that can holistically assess the various components of NBS from an HMR reduction and management perspective. Such tools can facilitate impact assessment modelling under different NBS scenarios to build a solid evidence base for upscaling and replicating the implementation of NBS.
Prashant Kumar; Sisay E. Debele; Jeetendra Sahani; Nidhi Rawat; Belen Marti-Cardona; Silvia Maria Alfieri; Bidroha Basu; Arunima Sarkar Basu; Paul Bowyer; Nikos Charizopoulos; Glauco Gallotti; Juvonen Jaakko; Laura S. Leo; Michael Loupis; Massimo Menenti; Slobodan B. Mickovski; Seung-Jae Mun; Alejandro Gonzalez-Ollauri; Jan Pfeiffer; Francesco Pilla; Julius Pröll; Martin Rutzinger; Marco Antonio Santo; Srikanta Sannigrahi; Christos Spyrou; Heikki Tuomenvirta; Thomas Zieher. Nature-based solutions efficiency evaluation against natural hazards: Modelling methods, advantages and limitations. Science of The Total Environment 2021, 784, 147058 .
AMA StylePrashant Kumar, Sisay E. Debele, Jeetendra Sahani, Nidhi Rawat, Belen Marti-Cardona, Silvia Maria Alfieri, Bidroha Basu, Arunima Sarkar Basu, Paul Bowyer, Nikos Charizopoulos, Glauco Gallotti, Juvonen Jaakko, Laura S. Leo, Michael Loupis, Massimo Menenti, Slobodan B. Mickovski, Seung-Jae Mun, Alejandro Gonzalez-Ollauri, Jan Pfeiffer, Francesco Pilla, Julius Pröll, Martin Rutzinger, Marco Antonio Santo, Srikanta Sannigrahi, Christos Spyrou, Heikki Tuomenvirta, Thomas Zieher. Nature-based solutions efficiency evaluation against natural hazards: Modelling methods, advantages and limitations. Science of The Total Environment. 2021; 784 ():147058.
Chicago/Turabian StylePrashant Kumar; Sisay E. Debele; Jeetendra Sahani; Nidhi Rawat; Belen Marti-Cardona; Silvia Maria Alfieri; Bidroha Basu; Arunima Sarkar Basu; Paul Bowyer; Nikos Charizopoulos; Glauco Gallotti; Juvonen Jaakko; Laura S. Leo; Michael Loupis; Massimo Menenti; Slobodan B. Mickovski; Seung-Jae Mun; Alejandro Gonzalez-Ollauri; Jan Pfeiffer; Francesco Pilla; Julius Pröll; Martin Rutzinger; Marco Antonio Santo; Srikanta Sannigrahi; Christos Spyrou; Heikki Tuomenvirta; Thomas Zieher. 2021. "Nature-based solutions efficiency evaluation against natural hazards: Modelling methods, advantages and limitations." Science of The Total Environment 784, no. : 147058.
Nature-based solutions (NBS) are being deployed around the world in order to address hydrometeorological hazards, including flooding, droughts, landslides and many others. The term refers to techniques inspired, supported and copied from nature, avoiding large constructions and other harmful interventions. In this work the development and evaluation of an NBS applied to the Spercheios river basin in Central Greece is presented. The river is susceptible to heavy rainfall and bank overflow, therefore the intervention selected is a natural water retention measure that aims to moderate the impact of flooding and drought in the area. After the deployment of the NBS, we examine the benefits under current and future climate conditions, using various climate change scenarios. Even though the NBS deployed is small compared to the rest of the river, its presence leads to a decrease in the maximum depth of flooding, maximum velocity and smaller flooded areas. Regarding the subsurface/groundwater storage under current and future climate change and weather conditions, the NBS construction seems to favor long-term groundwater recharge.
Christos Spyrou; Michael Loupis; Νikos Charizopoulos; Ilektra Apostolidou; Angeliki Mentzafou; George Varlas; Anastasios Papadopoulos; Elias Dimitriou; Depy Panga; Lamprini Gkeka; Paul Bowyer; Susanne Pfeifer; Sisay Debele; Prashant Kumar. Evaluating Nature-Based Solution for Flood Reduction in Spercheios River Basin under Current and Future Climate Conditions. Sustainability 2021, 13, 3885 .
AMA StyleChristos Spyrou, Michael Loupis, Νikos Charizopoulos, Ilektra Apostolidou, Angeliki Mentzafou, George Varlas, Anastasios Papadopoulos, Elias Dimitriou, Depy Panga, Lamprini Gkeka, Paul Bowyer, Susanne Pfeifer, Sisay Debele, Prashant Kumar. Evaluating Nature-Based Solution for Flood Reduction in Spercheios River Basin under Current and Future Climate Conditions. Sustainability. 2021; 13 (7):3885.
Chicago/Turabian StyleChristos Spyrou; Michael Loupis; Νikos Charizopoulos; Ilektra Apostolidou; Angeliki Mentzafou; George Varlas; Anastasios Papadopoulos; Elias Dimitriou; Depy Panga; Lamprini Gkeka; Paul Bowyer; Susanne Pfeifer; Sisay Debele; Prashant Kumar. 2021. "Evaluating Nature-Based Solution for Flood Reduction in Spercheios River Basin under Current and Future Climate Conditions." Sustainability 13, no. 7: 3885.
To bring to fruition the capability of nature-based solutions (NBS) in mitigating hydro-meteorological risks (HMRs) and facilitate their widespread uptake require a consolidated knowledge-base related to their monitoring methods, efficiency, functioning and the ecosystem services they provide. We attempt to fill this knowledge gap by reviewing and compiling the existing scientific literature on methods, including ground-based measurements (e.g. gauging stations, wireless sensor network) and remote sensing observations (e.g. from topographic LiDAR, multispectral and radar sensors) that have been used and/or can be relevant to monitor the performance of NBS against five HMRs: floods, droughts, heatwaves, landslides, and storm surges and coastal erosion. These can allow the mapping of the risks and impacts of the specific hydro-meteorological events. We found that the selection and application of monitoring methods mostly rely on the particular NBS being monitored, resource availability (e.g. time, budget, space) and type of HMRs. No standalone method currently exists that can allow monitoring the performance of NBS in its broadest view. However, equipments, tools and technologies developed for other purposes, such as for ground-based measurements and atmospheric observations, can be applied to accurately monitor the performance of NBS to mitigate HMRs. We also focused on the capabilities of passive and active remote sensing, pointing out their associated opportunities and difficulties for NBS monitoring application. We conclude that the advancement in airborne and satellite-based remote sensing technology has signified a leap in the systematic monitoring of NBS performance, as well as provided a robust way for the spatial and temporal comparison of NBS intervention versus its absence. This improved performance measurement can support the evaluation of existing uncertainty and scepticism in selecting NBS over the artificially built concrete structures or grey approaches by addressing the questions of performance precariousness. Remote sensing technical developments, however, take time to shift toward a state of operational readiness for monitoring the progress of NBS in place (e.g. green NBS growth rate, their changes and effectiveness through time). More research is required to develop a holistic approach, which could routinely and continually monitor the performance of NBS over a large scale of intervention. This performance evaluation could increase the ecological and socio-economic benefits of NBS, and also create high levels of their acceptance and confidence by overcoming potential scepticism of NBS implementations.
Prashant Kumar; Sisay E. Debele; Jeetendra Sahani; Nidhi Rawat; Belen Marti-Cardona; Silvia Maria Alfieri; Bidroha Basu; Arunima Sarkar Basu; Paul Bowyer; Nikos Charizopoulos; Juvonen Jaakko; Michael Loupis; Massimo Menenti; Slobodan B. Mickovski; Jan Pfeiffer; Francesco Pilla; Julius Pröll; Beatrice Pulvirenti; Martin Rutzinger; Srikanta Sannigrahi; Christos Spyrou; Heikki Tuomenvirta; Zoran Vojinovic; Thomas Zieher. An overview of monitoring methods for assessing the performance of nature-based solutions against natural hazards. Earth-Science Reviews 2021, 217, 103603 .
AMA StylePrashant Kumar, Sisay E. Debele, Jeetendra Sahani, Nidhi Rawat, Belen Marti-Cardona, Silvia Maria Alfieri, Bidroha Basu, Arunima Sarkar Basu, Paul Bowyer, Nikos Charizopoulos, Juvonen Jaakko, Michael Loupis, Massimo Menenti, Slobodan B. Mickovski, Jan Pfeiffer, Francesco Pilla, Julius Pröll, Beatrice Pulvirenti, Martin Rutzinger, Srikanta Sannigrahi, Christos Spyrou, Heikki Tuomenvirta, Zoran Vojinovic, Thomas Zieher. An overview of monitoring methods for assessing the performance of nature-based solutions against natural hazards. Earth-Science Reviews. 2021; 217 ():103603.
Chicago/Turabian StylePrashant Kumar; Sisay E. Debele; Jeetendra Sahani; Nidhi Rawat; Belen Marti-Cardona; Silvia Maria Alfieri; Bidroha Basu; Arunima Sarkar Basu; Paul Bowyer; Nikos Charizopoulos; Juvonen Jaakko; Michael Loupis; Massimo Menenti; Slobodan B. Mickovski; Jan Pfeiffer; Francesco Pilla; Julius Pröll; Beatrice Pulvirenti; Martin Rutzinger; Srikanta Sannigrahi; Christos Spyrou; Heikki Tuomenvirta; Zoran Vojinovic; Thomas Zieher. 2021. "An overview of monitoring methods for assessing the performance of nature-based solutions against natural hazards." Earth-Science Reviews 217, no. : 103603.
Abstract
Under climate change scenarios, it is important to evaluate the changes in recent behavior of heavy precipitation events, the resulting flood risk, and the detrimental impacts of the peak flow of water on human well-being, properties, infrastructure, and the natural environment. Normally, flood risk is estimated using the stationary flood frequency analysis technique. However, a site’s hydroclimate can shift beyond the range of historical observations considering continuing global warming. Therefore, flood-like distributions capable of accounting for changes in the parameters over time should be considered. The main objective of this study is to apply non-stationary flood frequency models using the generalized extreme value (GEV) distribution to model the changes in flood risk under two scenarios: (1) without nature-based solutions (NBS) in place and; (2) with NBS i.e. wetlands, retention ponds and weir/low head dam implemented. In the GEV model, the first two moments i.e. location and scale parameters of the distribution were allowed to change as a function of time-variable covariates, estimated by maximum likelihood. The methodology is applied to OPEn-air laboRAtories for Nature baseD solUtions to Manage hydro-meteo risks, which is in Europe. The time-dependent 100-year design quantiles were estimated for both the scenarios. We obtained daily precipitation data of climate models from the EURO-CORDEX project dataset for 1951–2020 and 2022–2100 representing historical and future simulations, respectively. The hydrologic model, HEC-HMS was used to simulate discharges/flood hydrograph without and with NBS in place for these two periods: historical (1951-2020) and future (2022-2100). The results showed that the corresponding time-dependent 100-year floods were remarkably high for the without NBS scenario in both the periods. Particularly, the high emission scenario (RCP 8.5) resulted in dramatically increased flood risks in the future. The simulation without NBS also showed that flooded area is projected to increase by 25% and 40% for inundation depth between 1.5 and 3.5 m under RCP 4.5 and RCP 8.5 scenarios, respectively. For inundation depth above 3.5 m, the flooded area is anticipated to rise by 30% and 55% in both periods respectively. With the implementation of NBS, the flood risk was projected to decrease by 20% (2022–2050) and 45% (2071–2100) with a significant decrease under RCP 4.5 and RCP 8.5 scenarios. This study can help improve existing methods to adapt to the uncertainties in a changing environment, which is critical to develop climate-proof NBS and improve NBS planning, implementation, and effectiveness assessment.
Keywords: Nature-based solutions; flood frequency analysis; climate change; wetlands; GEV model
Acknowledgments
This work has been carried out under the framework of OPERANDUM (OPEn-air laboRAtories for Nature baseD solUtions to Manage hydro-meteo risks) project, which is funded by the European Union's Horizon 2020 research and innovation programme under the Grant Agreement No: 776848.
Sisay Debele; Jeetendra Sahani; Silvia Maria Alfieri; Paul Bowyer; Nikos Charizopoulos; Michael Loupis; Massimo Menenti; Fabrice Renaud; Mohammad Aminur Rahman Shah; Christos Spyrou; Thomas Zieher; Silvana Di Sabatino; Prashant Kumar. Evaluating nature-based solutions in a non-stationary climate with changing risk of flooding. 2021, 1 .
AMA StyleSisay Debele, Jeetendra Sahani, Silvia Maria Alfieri, Paul Bowyer, Nikos Charizopoulos, Michael Loupis, Massimo Menenti, Fabrice Renaud, Mohammad Aminur Rahman Shah, Christos Spyrou, Thomas Zieher, Silvana Di Sabatino, Prashant Kumar. Evaluating nature-based solutions in a non-stationary climate with changing risk of flooding. . 2021; ():1.
Chicago/Turabian StyleSisay Debele; Jeetendra Sahani; Silvia Maria Alfieri; Paul Bowyer; Nikos Charizopoulos; Michael Loupis; Massimo Menenti; Fabrice Renaud; Mohammad Aminur Rahman Shah; Christos Spyrou; Thomas Zieher; Silvana Di Sabatino; Prashant Kumar. 2021. "Evaluating nature-based solutions in a non-stationary climate with changing risk of flooding." , no. : 1.
Nature-based solutions (NbS) are increasingly recognized as sustainable approaches to address socio-environmental challenges. Disaster risk reduction (DRR) has benefited by increasingly moving away from purely ‘grey’ infrastructure measures towards NbS, which can better provide cultural, aesthetic, and recreational co-benefits that are highly valued among European citizens. Public acceptance is of particular importance for NbS since they often rely on collaborative implementation, management, and monitoring, as well as protection against competing land uses. Although public engagement is a common goal of NbS projects and found in the IUCN’s core principles of NbS, outreach efforts are rarely based on a sufficient understanding of the (de)motivating factors tied to public perceptions. As a first step, we conducted a systematic literature review to examine how unique NbS characteristics relate to public acceptance through a comparison with grey measures. We identified influential acceptance factors related to individuals, society, and DRR measures. Based on the review, we introduce the PA-NbS framework as a starting point for the systematic consideration, design, and testing of strategies for increasing public acceptance. The PA-NbS highlights the roles of trust, competing interests, and effectiveness of NbS, as well as public perceptions of risk, nature and place.
A lack of consideration of these factors may lead to misaligned public expectations and failed participatory initiatives, while jeopardizing the success of NbS projects. Therefore, as a second step, we conducted citizen surveys within three NbS host communities. Distinct NbS being implemented within the OPERANDUM project aim to reduce risk from (socio-)natural hazards in Scotland (landslides and coastal erosion), Finland (eutrophication and algal blooms) and Greece (river flooding). Associations of factors related to risk, nature, and place perceptions with pro-NbS attitudes and behavior were tested to determine how these may be leveraged to increase acceptance. We find that trust is a consistent factor for defining attitudes towards the NbS across the sites. Attitudes are strongly associated with respondents’ commitment to nature and concern for risk, while some skepticism of NbS effectiveness leads to high public demand for relevant evidence. Risk perception and particularly the potential for future impacts are associated with behavioural acceptance (i.e. willingness to engage), along with responsibility for nature and connectedness to place.
Current data collection efforts to demonstrate NbS effectiveness for risk reduction are well-positioned to increase public acceptance in Europe. However, recognizing the differences among segments of the public within each site along with distinct hazard types, proposed NbS, and historical, social, and cultural characteristics across the sites is crucial for designing strategies that increase acceptance. An overview of these dynamics leads to evidence-based recommendations for the case-study sites and for successful NbS in Europe.
Carl C. Anderson; Fabrice G. Renaud; Stuart Hanscomb; Michael Loupis; Karen E. Munro; Alejandro Ollauri; Depy Panga; Eija Pouta; Katriina Soini; Craig S. Thomson. Public acceptance of nature-based solutions (NbS): a framework for successful NbS and its application in three European case studies. 2021, 1 .
AMA StyleCarl C. Anderson, Fabrice G. Renaud, Stuart Hanscomb, Michael Loupis, Karen E. Munro, Alejandro Ollauri, Depy Panga, Eija Pouta, Katriina Soini, Craig S. Thomson. Public acceptance of nature-based solutions (NbS): a framework for successful NbS and its application in three European case studies. . 2021; ():1.
Chicago/Turabian StyleCarl C. Anderson; Fabrice G. Renaud; Stuart Hanscomb; Michael Loupis; Karen E. Munro; Alejandro Ollauri; Depy Panga; Eija Pouta; Katriina Soini; Craig S. Thomson. 2021. "Public acceptance of nature-based solutions (NbS): a framework for successful NbS and its application in three European case studies." , no. : 1.
This work aims to investigate the effects of communication delay in a DC microgrid, which operates under an adaptive droop control scheme. A case study of a residential DC microgrid is examined, which is essentially a household prosumer with power generation units, both on site and remotely, energy storage units and various loads. Conventional droop control schemes have been widely adopted in DC microgrids, although they cause voltage deviation, due to the different characteristics of generation units, whereas their performance is sensitive to line impedances. In order to compensate this deviation, while maintaining current sharing accuracy (adapting to line impedances), a distributed secondary controller is considered, which regards only the information of neighboring converters, by the aid of digital communication links. The impact of various communication methods, in terms of communication delay is examined and evaluated via MATLAB/Simulink simulations.
Dimitris Baros; Nick Rigogiannis; Nick Papanikolaou; Michael Loupis. Investigation of Communication Delay Impact on DC Microgrids with Adaptive Droop Control. 2020 International Symposium on Industrial Electronics and Applications (INDEL) 2020, 1 -6.
AMA StyleDimitris Baros, Nick Rigogiannis, Nick Papanikolaou, Michael Loupis. Investigation of Communication Delay Impact on DC Microgrids with Adaptive Droop Control. 2020 International Symposium on Industrial Electronics and Applications (INDEL). 2020; ():1-6.
Chicago/Turabian StyleDimitris Baros; Nick Rigogiannis; Nick Papanikolaou; Michael Loupis. 2020. "Investigation of Communication Delay Impact on DC Microgrids with Adaptive Droop Control." 2020 International Symposium on Industrial Electronics and Applications (INDEL) , no. : 1-6.
This study summarizes the current state-of-the-art regarding the switched reluctance machine (SRM), as one of the most promising starter/generator (S/G) candidates to be aggregated in the high voltage (270 V or 540 V) DC distribution system of the more electric aircraft (MEA). The machine operational principles, its fundamental technical parameters regarding the specific application and the proposed control schemes are presented.
Nena Apostolidou; Nick Papanikolaou; Michael Loupis. Survey on Switched Reluctance Starter/Generator for the More Electric Aircraft. 2020 International Symposium on Industrial Electronics and Applications (INDEL) 2020, 1 -6.
AMA StyleNena Apostolidou, Nick Papanikolaou, Michael Loupis. Survey on Switched Reluctance Starter/Generator for the More Electric Aircraft. 2020 International Symposium on Industrial Electronics and Applications (INDEL). 2020; ():1-6.
Chicago/Turabian StyleNena Apostolidou; Nick Papanikolaou; Michael Loupis. 2020. "Survey on Switched Reluctance Starter/Generator for the More Electric Aircraft." 2020 International Symposium on Industrial Electronics and Applications (INDEL) , no. : 1-6.
Nature-based solutions (NBS) are increasingly being implemented as suitable approaches for reducing vulnerability and risk of social-ecological systems (SES) to hydro-meteorological hazards. Understanding vulnerability and risk of SES is crucial in order to design and implement NBS projects appropriately. A systematic literature review was carried out to examine the suitability of, or gaps in, existing frameworks for vulnerability and risk assessment of SES to hydro-meteorological hazards. The review confirms that very few frameworks have been developed in the context of NBS. Most of the frameworks have emphasised social systems over ecological systems. Furthermore, they have not explicitly considered the temporal dimension of risk reduction measures. The study proposes an indicator-based vulnerability and risk assessment framework in the context of NBS (VR-NBS) that addresses both the above limitations and considers established NBS principles. The framework aims to allow for a better consideration of the multiple benefits afforded by NBS and which impact all the dimensions of risk. A list of 135 indicators is identified through literature review and surveys in NBS project sites. This list is composed of indicators representing the social sub-system (61% of total indicators) and the ecological sub-system (39% of total indicators). The list will act as a reference indicator library in the context of NBS projects and will be regularly updated as lessons are learnt. While the proposed VR-NBS framework is developed considering hydro-meteorological hazards and NBS, it can be adapted for other natural hazards and different types of risk reduction measures.
Mohammad Aminur Rahman Shah; Fabrice G. Renaud; Carl C. Anderson; Annie Wild; Alessio Domeneghetti; Annemarie Polderman; Athanasios Votsis; Beatrice Pulvirenti; Bidroha Basu; Craig Thomson; Depy Panga; Eija Pouta; Elena Toth; Francesco Pilla; Jeetendra Sahani; Joy Ommer; Juliane El Zohbi; Karen Munro; Maria Stefanopoulou; Michael Loupis; Nikos Pangas; Prashant Kumar; Sisay Debele; Swantje Preuschmann; Wang Zixuan. A review of hydro-meteorological hazard, vulnerability, and risk assessment frameworks and indicators in the context of nature-based solutions. International Journal of Disaster Risk Reduction 2020, 50, 101728 .
AMA StyleMohammad Aminur Rahman Shah, Fabrice G. Renaud, Carl C. Anderson, Annie Wild, Alessio Domeneghetti, Annemarie Polderman, Athanasios Votsis, Beatrice Pulvirenti, Bidroha Basu, Craig Thomson, Depy Panga, Eija Pouta, Elena Toth, Francesco Pilla, Jeetendra Sahani, Joy Ommer, Juliane El Zohbi, Karen Munro, Maria Stefanopoulou, Michael Loupis, Nikos Pangas, Prashant Kumar, Sisay Debele, Swantje Preuschmann, Wang Zixuan. A review of hydro-meteorological hazard, vulnerability, and risk assessment frameworks and indicators in the context of nature-based solutions. International Journal of Disaster Risk Reduction. 2020; 50 ():101728.
Chicago/Turabian StyleMohammad Aminur Rahman Shah; Fabrice G. Renaud; Carl C. Anderson; Annie Wild; Alessio Domeneghetti; Annemarie Polderman; Athanasios Votsis; Beatrice Pulvirenti; Bidroha Basu; Craig Thomson; Depy Panga; Eija Pouta; Elena Toth; Francesco Pilla; Jeetendra Sahani; Joy Ommer; Juliane El Zohbi; Karen Munro; Maria Stefanopoulou; Michael Loupis; Nikos Pangas; Prashant Kumar; Sisay Debele; Swantje Preuschmann; Wang Zixuan. 2020. "A review of hydro-meteorological hazard, vulnerability, and risk assessment frameworks and indicators in the context of nature-based solutions." International Journal of Disaster Risk Reduction 50, no. : 101728.
Nature-based solutions (NBS) are being promoted as adaptive measures against predicted increasing hydrometeorological hazards (HMHs), such as heatwaves and floods which have already caused significant loss of life and economic damage across the globe. However, the underpinning factors such as policy framework, end-users' interests and participation for NBS design and operationalisation are yet to be established. We discuss the operationalisation and implementation processes of NBS by means of a novel concept of Open-Air Laboratories (OAL) for its wider acceptance. The design and implementation of environmentally, economically, technically and socio-culturally sustainable NBS require inter- and transdisciplinary approaches which could be achieved by fostering co-creation processes by engaging stakeholders across various sectors and levels, inspiring more effective use of skills, diverse knowledge, manpower and resources, and connecting and harmonising the adaptation aims. The OAL serves as a benchmark for NBS upscaling, replication and exploitation in policy-making process through monitoring by field measurement, evaluation by key performance indicators and building solid evidence on their short- and long-term multiple benefits in different climatic, environmental and socio-economic conditions, thereby alleviating the challenges of political resistance, financial barriers and lack of knowledge. We conclude that holistic management of HMHs by effective use of NBS can be achieved with standard compliant data for replicating and monitoring NBS in OALs, knowledge about policy silos and interaction between research communities and end-users. Further research is needed for multi-risk analysis of HMHs and inclusion of NBS into policy frameworks, adaptable at local, regional and national scales leading to modification in the prevalent guidelines related to HMHs. The findings of this work can be used for developing synergies between current policy frameworks, scientific research and practical implementation of NBS in Europe and beyond for its wider acceptance.
Prashant Kumar; Sisay E. Debele; Jeetendra Sahani; Leonardo Aragão; Francesca Barisani; Bidroha Basu; Edoardo Bucchignani; Nikos Charizopoulos; Silvana Di Sabatino; Alessio Domeneghetti; Albert Sorolla Edo; Leena Finér; Glauco Gallotti; Sanne Juch; Laura S. Leo; Michael Loupis; Slobodan B. Mickovski; Depy Panga; Irina Pavlova; Francesco Pilla; Adrian Löchner Prats; Fabrice G. Renaud; Martin Rutzinger; Arunima Sarkar Basu; Mohammad Aminur Rahman Shah; Katriina Soini; Maria Stefanopoulou; Elena Toth; Liisa Ukonmaanaho; Sasa Vranic; Thomas Zieher. Towards an operationalisation of nature-based solutions for natural hazards. Science of The Total Environment 2020, 731, 138855 .
AMA StylePrashant Kumar, Sisay E. Debele, Jeetendra Sahani, Leonardo Aragão, Francesca Barisani, Bidroha Basu, Edoardo Bucchignani, Nikos Charizopoulos, Silvana Di Sabatino, Alessio Domeneghetti, Albert Sorolla Edo, Leena Finér, Glauco Gallotti, Sanne Juch, Laura S. Leo, Michael Loupis, Slobodan B. Mickovski, Depy Panga, Irina Pavlova, Francesco Pilla, Adrian Löchner Prats, Fabrice G. Renaud, Martin Rutzinger, Arunima Sarkar Basu, Mohammad Aminur Rahman Shah, Katriina Soini, Maria Stefanopoulou, Elena Toth, Liisa Ukonmaanaho, Sasa Vranic, Thomas Zieher. Towards an operationalisation of nature-based solutions for natural hazards. Science of The Total Environment. 2020; 731 ():138855.
Chicago/Turabian StylePrashant Kumar; Sisay E. Debele; Jeetendra Sahani; Leonardo Aragão; Francesca Barisani; Bidroha Basu; Edoardo Bucchignani; Nikos Charizopoulos; Silvana Di Sabatino; Alessio Domeneghetti; Albert Sorolla Edo; Leena Finér; Glauco Gallotti; Sanne Juch; Laura S. Leo; Michael Loupis; Slobodan B. Mickovski; Depy Panga; Irina Pavlova; Francesco Pilla; Adrian Löchner Prats; Fabrice G. Renaud; Martin Rutzinger; Arunima Sarkar Basu; Mohammad Aminur Rahman Shah; Katriina Soini; Maria Stefanopoulou; Elena Toth; Liisa Ukonmaanaho; Sasa Vranic; Thomas Zieher. 2020. "Towards an operationalisation of nature-based solutions for natural hazards." Science of The Total Environment 731, no. : 138855.
Extreme hydro-meteorological events are often defined by the statistical analysis of some parameter that measures the strength of the event over a long enough time series. The parameter could refer to the intensity of the event in terms of energy or to the impact of the event on the environment. This attribution becomes even more relevant when used as reference for future climate projections, suggesting a possible increase in the number of extreme events considering the attribution applied to the past database.
In the literature concerning storm-surge, the use of significant wave height (Hs) percentiles to define thresholds of an extreme event is a common practice when dealing with sufficiently long datasets. Usually, this value ranges from 90th up to 99.5th trying to highlight about 3-6 Hs peaks per year. But, in fact, thresholds should provide a benchmark for how much a region can withstand an extreme event. The Italian coast of the northern Adriatic is recently increasing its sensitivity to such episodes, that threaten one of the most active touristic hub of Italy, the highly valuable Po Delta UNESCO Biosphere Reserve and city of Venice fragile structure. Recently in late 2019, a strong event hit Venice with high tides flooding the city's main monument, St. Mark's Basilica, for the 6th time in 1200 years, with levels very similar to the worst event in history in 1966.
Attempting to better understand the distribution of these extreme events throughout last decades and how reanalysis products can be useful for storm-surge studies, this paper presents a climatological comparison of significant wave height data extracted from ECMWF ERA5 against the entire historical series available to the Nausicaa wave buoy. This station, owned and managed by ARPAE, is located about 8 km offshore the Municipality of Cesenatico, where the seabed is about 10m, and since 2007 has been used to monitor and prevent sea level related events. In the last 12 years, at least 10 extreme events have been reported based on hourly measured data in Nausicaa and the damage observed along the coast, allowing the local authorities to define Hs thresholds as 1.5 m to significant events and 3.0 m for extreme events. However, analysing the measured data in this period, at least 26 events that exceeded the 3 m threshold were observed, representing the percentile 99.81th of the historical series, whereas only 10 storm-surge events resulted in damage to cities or environmental protection areas. When analysing Hs extracted from ERA5 at the nearest grid point to Nausicaa (~ 30 km) for the same 26 events, all events were correctly identified by reanalysis and represented with an averaged correlation of 0.96. For Hs series extracted from ERA5, values above 3 m reached the 99.83rd percentile for the same period from 2007 to 2018, and 99.84th when expanded to the last 30 years (since 1989), showing that, although quite restricted, the 99.8th percentile seems to be a good value for identifying extreme events of storm-surge in the northern Adriatic Sea.
Federico Porcu; Leonardo Aragão; Margherita Aguzzi; Andrea Valentini; Sisay Debele; Prashant Kumar; Michael Loupis; Myriam Montesarchio; Paola Mercogliano; Silvana Di Sabatino. Extreme wave events attribution using ERA5 datasets for storm-surge studies in the northern Adriatic sea. 2020, 1 .
AMA StyleFederico Porcu, Leonardo Aragão, Margherita Aguzzi, Andrea Valentini, Sisay Debele, Prashant Kumar, Michael Loupis, Myriam Montesarchio, Paola Mercogliano, Silvana Di Sabatino. Extreme wave events attribution using ERA5 datasets for storm-surge studies in the northern Adriatic sea. . 2020; ():1.
Chicago/Turabian StyleFederico Porcu; Leonardo Aragão; Margherita Aguzzi; Andrea Valentini; Sisay Debele; Prashant Kumar; Michael Loupis; Myriam Montesarchio; Paola Mercogliano; Silvana Di Sabatino. 2020. "Extreme wave events attribution using ERA5 datasets for storm-surge studies in the northern Adriatic sea." , no. : 1.
Various frameworks for vulnerability and risk assessment of social-ecological systems (SES) to natural hazards have been developed addressing different contexts. However, none were specifically developed in the context of implementing nature-based solutions (NBS) to hydro-meteorological risks. Since the basic concepts and principles of NBS are mainly focused on ensuring balance between ecological and social benefits, the entire vulnerability and risk assessment process should focus equally on various social and ecological components of a location where an NBS would be implemented. As a part of the OPEn-air laboRAtories for Nature baseD solUtions to Manage hydro-meteo risks (OPERANDUM) project, this research proposes a conceptual framework for vulnerability and risk assessment in the context of NBS to hydro-meteorological risks. This conceptual framework is developed mainly considering the major components of the existing Delta-SES risk assessment framework (Sebesvari et al. 2016) and other similar frameworks proposed in recent studies, as well as the proposed principles for NBS endorsed by International Union for Conservation of Nature (IUCN). The major components of the framework include: (i) the exposure of SES to multiple hydro-meteorological hazards (e.g., flood, drought); (ii) vulnerability of SES that consists of ecosystem susceptibility, social susceptibility, ecosystem robustness, and coping and adaptive capacity of the social system; (iii) risks in the NBS project site determined by the combination of hazard exposure and vulnerability; and (iv) the impacts of hydro-meteorological hazards on the SES surrounding or within the NBS project site. While the basic space of risk assessment would be the NBS project site (usually at the local level within sub-catchments) with specific SES characteristics, this framework also reflects the interrelationships between ecosystem and social system as well as the effects of multiple hazards and risks at local up to the global scales. The framework also considers the changes over time that would capture the maturation time lag of the ecological components of an NBS, as well as the sustainability of the system with the intervention of NBS and other risk reduction measures. An indicator-based risk assessment approach can be used to operationalize the framework. To facilitate that, an indicator library has been developed comprising of indicators for different exposure and vulnerability components of the framework. The proposed framework can be applicable to any geographical conditions where an NBS project is to be implemented to reduce hydro-meteorological risks. The framework can also be tailored for other natural hazards (e.g. geological hazards like earthquake) and anthropogenic hazards (e.g. pollution). We will explain the conceptualisation process of the framework and of the indicator library and how these will be tested within the OPERANDUM project in the context of NBS implementation.
Keywords: Nature-based solutions, risk assessment framework, hydro-meteorological hazards, social-ecological systems
Reference:
Sebesvari, Z., Renaud, F. G., Haas, S., Tessler, Z., Hagenlocher, M., Kloos, J., ... & Kuenzer, C. (2016). A review of vulnerability indicators for deltaic social–ecological systems. Sustainability Science, 11(4), 575-590.
Mohammad Aminur Rahman Shah; Fabrice G. Renaud; Annie Wild; Carl C. Anderson; Michael Loupis; Depy Panga; Maria Stefanopoulou; Annemarie Polderman; Eija Pouta; Athanasios Votsis; Craig Thomson; Karen Munro; Bidroha Basu; Francesco Pilla; Beatrice Pulvirenti; Elena Toth; Alessio Domeneghetti; Silvana Di Sabatino. A conceptual framework for vulnerability and risk assessment in the context of nature-based solutions to hydro-meteorological risks. 2020, 1 .
AMA StyleMohammad Aminur Rahman Shah, Fabrice G. Renaud, Annie Wild, Carl C. Anderson, Michael Loupis, Depy Panga, Maria Stefanopoulou, Annemarie Polderman, Eija Pouta, Athanasios Votsis, Craig Thomson, Karen Munro, Bidroha Basu, Francesco Pilla, Beatrice Pulvirenti, Elena Toth, Alessio Domeneghetti, Silvana Di Sabatino. A conceptual framework for vulnerability and risk assessment in the context of nature-based solutions to hydro-meteorological risks. . 2020; ():1.
Chicago/Turabian StyleMohammad Aminur Rahman Shah; Fabrice G. Renaud; Annie Wild; Carl C. Anderson; Michael Loupis; Depy Panga; Maria Stefanopoulou; Annemarie Polderman; Eija Pouta; Athanasios Votsis; Craig Thomson; Karen Munro; Bidroha Basu; Francesco Pilla; Beatrice Pulvirenti; Elena Toth; Alessio Domeneghetti; Silvana Di Sabatino. 2020. "A conceptual framework for vulnerability and risk assessment in the context of nature-based solutions to hydro-meteorological risks." , no. : 1.
In this paper, an outline of NTUA’s work in the framework of project INTELLICONT is presented. We describe the current state of the air-cargo handling procedures and how the autonomous system that is under development is going to simplify these and increase the overall efficiency. Important issues and challenges regarding the system's development are discussed and a preliminary design of the novel robotic platform is given. The main tasks of this platform include the autonomous motion and locking of containers with mass exceeding one tone, avoiding at the same time obstacles and surpassing terrain discontinuities. Information regarding the selected actuators and other key electrical components, such as motor drivers and sensors are provided also. The architecture of the embedded system and the specifications of the selected Central Control Unit are described, as well as the integration of the motor drivers, sensors and other peripherals with the Robot Operating System (ROS). Further details on the development of a high accuracy localization system, which is mandatory to lock the container safely to the corresponding positions are provided also. In addition, we give details regarding the locking mechanism with integrated monitoring functionalities, an important part of the system. Simulation experiments validate the selected position controller and key system specifications are highlighted based on results. Finally, recent prototype experiments conducted to verify the localization system are presented.
Georgios Bolanakis; Konstantinos Machairas; Konstantinos Koutsoukis; Athanasios Mastrogeorgiou; Michael Loupis; Evangelos Papadopoulos. Automating Loading and Locking of New Generation Air-cargo Containers. MATEC Web of Conferences 2019, 304, 04019 .
AMA StyleGeorgios Bolanakis, Konstantinos Machairas, Konstantinos Koutsoukis, Athanasios Mastrogeorgiou, Michael Loupis, Evangelos Papadopoulos. Automating Loading and Locking of New Generation Air-cargo Containers. MATEC Web of Conferences. 2019; 304 ():04019.
Chicago/Turabian StyleGeorgios Bolanakis; Konstantinos Machairas; Konstantinos Koutsoukis; Athanasios Mastrogeorgiou; Michael Loupis; Evangelos Papadopoulos. 2019. "Automating Loading and Locking of New Generation Air-cargo Containers." MATEC Web of Conferences 304, no. : 04019.
Hydro-meteorological risk (HMR) management involves a range of methods, such as monitoring of uncertain climate, planning and prevention by technical countermeasures, risk assessment, preparedness for risk by early-warnings, spreading knowledge and awareness, response and recovery. To execute HMR management by risk assessment, many models and tools, ranging from conceptual to sophisticated/numerical methods are currently in use. However, there is still a gap in systematically classifying and documenting them in the field of disaster risk management. This paper discusses various methods used for HMR assessment and its management via potential nature-based solutions (NBS), which are actually lessons learnt from nature. We focused on three hydro-meteorological hazards (HMHs), floods, droughts and heatwaves, and their management by relevant NBS. Different methodologies related to the chosen HMHs are considered with respect to exposure, vulnerability and adaptation interaction of the elements at risk. Two widely used methods for flood risk assessment are fuzzy logic (e.g. fuzzy analytic hierarchy process) and probabilistic methodology (e.g. univariate and multivariate probability distributions). Different kinds of indices have been described in the literature to define drought risk, depending upon the type of drought and the purpose of evaluation. For heatwave risk estimation, mapping of the vulnerable property and population-based on geographical information system is a widely used methodology in addition to a number of computational, mathematical and statistical methods, such as principal component analysis, extreme value theorem, functional data analysis, the Ornstein–Uhlenbeck process and meta-analysis. NBS (blue, green and hybrid infrastructures) are promoted for HMR management. For example, marshes and wetlands in place of dams for flood and drought risk reduction, and green infrastructure for urban cooling and combating heatwaves, are potential NBS. More research is needed into risk assessment and management through NBS, to enhance its wider significance for sustainable living, building adaptations and resilience.
Jeetendra Sahani; Prashant Kumar; Sisay Debele; Christos Spyrou; Michael Loupis; Leonardo Aragão; Federico Porcu; Mohammad Aminur Rahman Shah; Silvana Di Sabatino. Hydro-meteorological risk assessment methods and management by nature-based solutions. Science of The Total Environment 2019, 696, 133936 .
AMA StyleJeetendra Sahani, Prashant Kumar, Sisay Debele, Christos Spyrou, Michael Loupis, Leonardo Aragão, Federico Porcu, Mohammad Aminur Rahman Shah, Silvana Di Sabatino. Hydro-meteorological risk assessment methods and management by nature-based solutions. Science of The Total Environment. 2019; 696 ():133936.
Chicago/Turabian StyleJeetendra Sahani; Prashant Kumar; Sisay Debele; Christos Spyrou; Michael Loupis; Leonardo Aragão; Federico Porcu; Mohammad Aminur Rahman Shah; Silvana Di Sabatino. 2019. "Hydro-meteorological risk assessment methods and management by nature-based solutions." Science of The Total Environment 696, no. : 133936.
In the context of Clean Sky 2 project TAVAC, technologies for active Vibration and Acoustic Comfort are investigated to be used in business jet aircrafts. More specifically in order to reduce the resulting low frequency vibration on the aircraft tip a Semi-Active Tuned Mass Damper was designed using very large inductances. This paper presents the design, simulation and laboratory prototyping of high value inductances, in the range of 4 H.
Charalampos Tsioustas; Michael Loupis. Design, simulation and experimental verification of an active inductance for a low frequency tuned mass damper in an aircraft fuselage active vibration cancellation system. 2018 International Symposium on Industrial Electronics (INDEL) 2018, 1 -5.
AMA StyleCharalampos Tsioustas, Michael Loupis. Design, simulation and experimental verification of an active inductance for a low frequency tuned mass damper in an aircraft fuselage active vibration cancellation system. 2018 International Symposium on Industrial Electronics (INDEL). 2018; ():1-5.
Chicago/Turabian StyleCharalampos Tsioustas; Michael Loupis. 2018. "Design, simulation and experimental verification of an active inductance for a low frequency tuned mass damper in an aircraft fuselage active vibration cancellation system." 2018 International Symposium on Industrial Electronics (INDEL) , no. : 1-5.
In the context of MODUS project, several tools were developed for SMEs, to be used in their development process for different application domains. In this paper, the overview of the architecture of each one of these tools is presented, as included in the final version of the MODUS toolset and a use case scenario is presented.
Michael Loupis. A toolset for the design of embedded systems, enabling HW/SW co-simulation, performance optimisation and source code generation. 2017 Panhellenic Conference on Electronics and Telecommunications (PACET) 2017, 1 -4.
AMA StyleMichael Loupis. A toolset for the design of embedded systems, enabling HW/SW co-simulation, performance optimisation and source code generation. 2017 Panhellenic Conference on Electronics and Telecommunications (PACET). 2017; ():1-4.
Chicago/Turabian StyleMichael Loupis. 2017. "A toolset for the design of embedded systems, enabling HW/SW co-simulation, performance optimisation and source code generation." 2017 Panhellenic Conference on Electronics and Telecommunications (PACET) , no. : 1-4.
To increase the reliability of aerospace electronics and reduce their overall power consumption, we investigated the possibility of incorporating active thermoelectric cooling (TEC) solutions. The harsh avionic environment demands sophisticated active control schemes that enable the achievement of high coefficient of performance. The positive effect of active PWM control has been validated both in simulation and on a working laboratory prototype that allowed us to clarify the pros and cons of the incorporation of TEC techniques in avionics applications. This paper has been performed under the framework of CLEAN SKY-THERMICOOL project.
Emmanuel Karampasis; Nick Papanikolaou; Dionisis Voglitsis; Michael Loupis; Anastasios Psarras; Alexandros Boubaris; Dimitris Baros; Giorgos Dimitrakopoulos. Active Thermoelectric Cooling Solutions for Airspace Applications: the THERMICOOL Project. IEEE Access 2017, 5, 2288 -2299.
AMA StyleEmmanuel Karampasis, Nick Papanikolaou, Dionisis Voglitsis, Michael Loupis, Anastasios Psarras, Alexandros Boubaris, Dimitris Baros, Giorgos Dimitrakopoulos. Active Thermoelectric Cooling Solutions for Airspace Applications: the THERMICOOL Project. IEEE Access. 2017; 5 ():2288-2299.
Chicago/Turabian StyleEmmanuel Karampasis; Nick Papanikolaou; Dionisis Voglitsis; Michael Loupis; Anastasios Psarras; Alexandros Boubaris; Dimitris Baros; Giorgos Dimitrakopoulos. 2017. "Active Thermoelectric Cooling Solutions for Airspace Applications: the THERMICOOL Project." IEEE Access 5, no. : 2288-2299.
This paper investigates energy efficiency issues in modern lifts, based on the VDI 4707 guidelines, in the context of “KLEEMANN-LESS” research project, funded by national resources and the EU. The above analysis is applied to various lift types manufactured by the Greek multinational company ΚLEEMAN HELLAS. The obtained results indicate the relationship between critical technical parameters, such as the elevator driving system type and the standby energy consumption, according to the aforementioned standard. Furthermore, in the current work, new techniques for energy savings are proposed, employing realistic scenarios, which significantly enhance energy efficiency. Experimental work shows that an energy saving of up to 40% can be achieved. The outputs of the current work are not limited to lift models manufactured by KLEEMAN HELLAS, but concern the majority of lift manufacturers as well.
Ν. Papanikolaou; Michael Loupis; Ν. Spiropoulos; Ε. Mitronikas; Ε. Τatakis; C. Christodoulou; Vasilios Zarikas; T. Τsiftsis. On the investigation of energy saving aspects of commercial lifts. Energy Efficiency 2016, 10, 945 -956.
AMA StyleΝ. Papanikolaou, Michael Loupis, Ν. Spiropoulos, Ε. Mitronikas, Ε. Τatakis, C. Christodoulou, Vasilios Zarikas, T. Τsiftsis. On the investigation of energy saving aspects of commercial lifts. Energy Efficiency. 2016; 10 (4):945-956.
Chicago/Turabian StyleΝ. Papanikolaou; Michael Loupis; Ν. Spiropoulos; Ε. Mitronikas; Ε. Τatakis; C. Christodoulou; Vasilios Zarikas; T. Τsiftsis. 2016. "On the investigation of energy saving aspects of commercial lifts." Energy Efficiency 10, no. 4: 945-956.
The radio frequency identification (RFID) is one of the most promising new technologies of modern economy, with a high potential of improving the efficiency and productivity of enterprises. The main goal of this study is to determine the extent of RFID usage in European (EU) countries and to estimate whether there is a relation between countries’ competitiveness and their levels of RFID usage. First, the trend of RFID usage among EU enterprises is analyzed for the years 2009, 2011, and 2014. Second, a cluster analysis is applied with the goal to create homogenous groups of countries according to the RFID application across different industries. Third, countries from different clusters were compared according to their competitiveness in 2014. Results revealed that enterprises in Europe differ substantially according to their RFID usage. Also, RFID usage is not evenly distributed among countries across different industries, since some countries were leaders in RFID usage in one industry while lagging behind in RFID usage in other industries. Finally, countries from clusters with a higher RFID usage level also have a higher level of technological readiness and innovation, while smaller differences were found in business sophistication.
Mirjana Pejić Bach; Jovana Zoroja; Michael Loupis. RFID usage in European enterprises and its relation to competitiveness. International Journal of Engineering Business Management 2016, 8, 1 .
AMA StyleMirjana Pejić Bach, Jovana Zoroja, Michael Loupis. RFID usage in European enterprises and its relation to competitiveness. International Journal of Engineering Business Management. 2016; 8 ():1.
Chicago/Turabian StyleMirjana Pejić Bach; Jovana Zoroja; Michael Loupis. 2016. "RFID usage in European enterprises and its relation to competitiveness." International Journal of Engineering Business Management 8, no. : 1.