The Experts below are selected from a list of 159 Experts worldwide ranked by ideXlab platform
Elisa Angelelli - One of the best experts on this subject based on the ideXlab platform.
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beach response to wave energy converter farms acting as coastal defence
Coastal Engineering, 2014Co-Authors: Edgar Mendoza, Barbara Zanuttigh, Elisa Angelelli, Rodolfo Silva, Thomas Lykke Andersen, Luca Martinelli, Jorgen Harck Norgaard, Piero RuolAbstract:Abstract One of the greatest challenges of coastal engineering today is the need for coastal Protection in the changing climate scenario. Places which are nowadays protected will demand upgraded defences and more sites will require security; in all cases a large amount of resources will be needed to ensure beach maintenance and coastal safety. This may be an opportunity for the multi-Purpose use of Wave Energy Converters (WECs) if the foreseen increase of energy demand in coastal areas is also considered. In this paper a group of WECs based on different operating concepts is numerically tested in front of two beaches, i.e. the Bay of Santander in Spain and Las Glorias beach in Mexico, representing two different case studies where the long-shore sediment transport is dominant. The hydrodynamics induced by these devices is represented by means of a 2D elliptic modified mild-slope model that is calibrated against new experimental results. The wave field is then used as input for the analytical calculation of the long-shore sediment transport and the coastline trend is estimated by applying the continuity of sediment equation. The characteristics of the selected numerical models give this work a first approach level. All the devices were found to produce a positive trend (accretion) at least in small areas. Recommendations are given to facilitate the selection of the device and the design of the farm layout for shore Protection Purpose.
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experimental investigation of floating wave energy converters for coastal Protection Purpose
Coastal Engineering, 2013Co-Authors: Barbara Zanuttigh, Elisa AngelelliAbstract:Abstract Coastal areas are vital economic hubs already affected by erosion, flood risk and long-term habitat deterioration. The growth of economy coupled with the acceleration of climate change draws the attention to sustainable coastal defence plans. Near-shore floating wave energy converters may be an innovative way to defend the coast with low environmental and aesthetic impact together with the secondary benefit of energy production. This contribution specifically addresses the use of devices of the Wave Activated Body type for coastal Protection, based on 3D laboratory results. New experiments were carried out on a single device in 1:30 scale and on three devices of the same type in 1:60 scale in the deep-water wave tank at Aalborg University. Wave transmission, wave reflection, mutual interaction among the devices and device efficiency are assessed under a variety of conditions by changing wave steepness and water depth. Experiments allow a first outline of design guidelines for these kinds of combined installation for wave energy production and coastal defence.
Barbara Zanuttigh - One of the best experts on this subject based on the ideXlab platform.
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beach response to wave energy converter farms acting as coastal defence
Coastal Engineering, 2014Co-Authors: Edgar Mendoza, Barbara Zanuttigh, Elisa Angelelli, Rodolfo Silva, Thomas Lykke Andersen, Luca Martinelli, Jorgen Harck Norgaard, Piero RuolAbstract:Abstract One of the greatest challenges of coastal engineering today is the need for coastal Protection in the changing climate scenario. Places which are nowadays protected will demand upgraded defences and more sites will require security; in all cases a large amount of resources will be needed to ensure beach maintenance and coastal safety. This may be an opportunity for the multi-Purpose use of Wave Energy Converters (WECs) if the foreseen increase of energy demand in coastal areas is also considered. In this paper a group of WECs based on different operating concepts is numerically tested in front of two beaches, i.e. the Bay of Santander in Spain and Las Glorias beach in Mexico, representing two different case studies where the long-shore sediment transport is dominant. The hydrodynamics induced by these devices is represented by means of a 2D elliptic modified mild-slope model that is calibrated against new experimental results. The wave field is then used as input for the analytical calculation of the long-shore sediment transport and the coastline trend is estimated by applying the continuity of sediment equation. The characteristics of the selected numerical models give this work a first approach level. All the devices were found to produce a positive trend (accretion) at least in small areas. Recommendations are given to facilitate the selection of the device and the design of the farm layout for shore Protection Purpose.
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experimental investigation of floating wave energy converters for coastal Protection Purpose
Coastal Engineering, 2013Co-Authors: Barbara Zanuttigh, Elisa AngelelliAbstract:Abstract Coastal areas are vital economic hubs already affected by erosion, flood risk and long-term habitat deterioration. The growth of economy coupled with the acceleration of climate change draws the attention to sustainable coastal defence plans. Near-shore floating wave energy converters may be an innovative way to defend the coast with low environmental and aesthetic impact together with the secondary benefit of energy production. This contribution specifically addresses the use of devices of the Wave Activated Body type for coastal Protection, based on 3D laboratory results. New experiments were carried out on a single device in 1:30 scale and on three devices of the same type in 1:60 scale in the deep-water wave tank at Aalborg University. Wave transmission, wave reflection, mutual interaction among the devices and device efficiency are assessed under a variety of conditions by changing wave steepness and water depth. Experiments allow a first outline of design guidelines for these kinds of combined installation for wave energy production and coastal defence.
Yolanda Prezado - One of the best experts on this subject based on the ideXlab platform.
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Advancing proton minibeam radiation therapy: magnetically focussed proton minibeams at a clinical centre
Scientific Reports, 2020Co-Authors: Tim Schneider, Ludovic De Marzi, Annalisa Patriarca, Yolanda PrezadoAbstract:Applied nuclear physics and biophysics are ubiquitous in our lives and is has large impact on the society covering a variety of different topics. The field is in fast and exponential growth and in the next future new accelerators in Europe, but also worldwide, will offer to researchers even more opportunities to further explore the application of biomedical research. Some example of this vast landscape are the innovative techniques of cancer radiotherapy, as the particle therapy of cancer or the high dose/rate irradiation therapy, the study of the effect of the cosmic rays on the astronauts for radio Protection Purpose in long term space missions. Such a different topics have in common the biophysics effect of the ionizing radiation on living tissue. The aim of the AUSPICE project is to establish a network between the several research groups and to build a coordination of efforts so to avoid duplications and instead have synergistic interactions for biomedical research at accelerators. AUSPICE can have a large impact of the future production of this field in Europe, that sees now very active and competitive research groups, but with very poor intercommunication, usually independent funding, and with scarce cooperation. AUSPICE will create a network in an highly fractionated community, boosting the interdisciplinary approach to the problem. fostering the application of the research results in the market.Particularly care will be given to the creation a community of young researchers strongly interconnected and acting as a bridge between research and application
Piero Ruol - One of the best experts on this subject based on the ideXlab platform.
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beach response to wave energy converter farms acting as coastal defence
Coastal Engineering, 2014Co-Authors: Edgar Mendoza, Barbara Zanuttigh, Elisa Angelelli, Rodolfo Silva, Thomas Lykke Andersen, Luca Martinelli, Jorgen Harck Norgaard, Piero RuolAbstract:Abstract One of the greatest challenges of coastal engineering today is the need for coastal Protection in the changing climate scenario. Places which are nowadays protected will demand upgraded defences and more sites will require security; in all cases a large amount of resources will be needed to ensure beach maintenance and coastal safety. This may be an opportunity for the multi-Purpose use of Wave Energy Converters (WECs) if the foreseen increase of energy demand in coastal areas is also considered. In this paper a group of WECs based on different operating concepts is numerically tested in front of two beaches, i.e. the Bay of Santander in Spain and Las Glorias beach in Mexico, representing two different case studies where the long-shore sediment transport is dominant. The hydrodynamics induced by these devices is represented by means of a 2D elliptic modified mild-slope model that is calibrated against new experimental results. The wave field is then used as input for the analytical calculation of the long-shore sediment transport and the coastline trend is estimated by applying the continuity of sediment equation. The characteristics of the selected numerical models give this work a first approach level. All the devices were found to produce a positive trend (accretion) at least in small areas. Recommendations are given to facilitate the selection of the device and the design of the farm layout for shore Protection Purpose.
Joel Hillhouse - One of the best experts on this subject based on the ideXlab platform.
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Appearance Motives to Tan and Not Tan: Evidence for Validity and Reliability of a New Scale
Annals of Behavioral Medicine, 2008Co-Authors: Guy Cafri, J. Kevin Thompson, Megan Roehrig, Ariz Rojas, Steffanie Sperry, Paul B. Jacobsen, Joel HillhouseAbstract:Background Risk for skin cancer is increased by UV exposure and decreased by sun Protection. Appearance reasons to tan and not tan have consistently been shown to be related to intentions and behaviors to UV exposure and Protection. Purpose This study was designed to determine the factor structure of appearance motives to tan and not tan, evaluate the extent to which this factor structure is gender invariant, test for mean differences in the identified factors, and evaluate internal consistency, temporal stability, and criterion-related validity. Method Five-hundred eighty-nine females and 335 male college students were used to test confirmatory factor analysis models within and across gender groups, estimate latent mean differences, and use the correlation coefficient and Cronbach’s alpha to further evaluate the reliability and validity of the identified factors. Results A measurement invariant (i.e., factor-loading invariant) model was identified with three higher-order factors: sociocultural influences to tan (lower order factors: media, friends, family, significant others), appearance reasons to tan (general, acne, body shape), and appearance reasons not to tan (skin aging, immediate skin damage). Females had significantly higher means than males on all higher-order factors. All subscales had evidence of internal consistency, temporal stability, and criterion-related validity. Conclusions This study offers a framework and measurement instrument that has evidence of validity and reliability for evaluating appearance-based motives to tan and not tan.
