Pub Date : 2018-09-01DOI: 10.1109/RTSI.2018.8548520
Ignazio Infantino, A. Augello, U. Maniscalco, G. Pilato, Filippo Vella
The paper illustrates a software architecture allowing a robot to socially interact with human beings, sharing with them some basilar cognitive mechanisms. Robust sensing of the environment and people is strongly linked with an artificial somatosensory system that drives the robot behavior at a low level and influences its motivation. Both long-term memory and short-term memory store relevant data to detect and recognize the social context (and social practice), and the human social behavior. Using both internal and external evaluations, the robot learns and improves its social skills, which take into account its physiological and emotional demands (affiliation, competence, certainty). Social interaction is encoded in the cognitive architecture by considering at the same level the human understanding and the robot communicative actions. This is done by using the same interaction channels (both verbal and nonverbal). Some examples derived from previous works show the effectiveness and the potential of the cognitive architecture.
{"title":"A Cognitive Architecture for Social Robots","authors":"Ignazio Infantino, A. Augello, U. Maniscalco, G. Pilato, Filippo Vella","doi":"10.1109/RTSI.2018.8548520","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548520","url":null,"abstract":"The paper illustrates a software architecture allowing a robot to socially interact with human beings, sharing with them some basilar cognitive mechanisms. Robust sensing of the environment and people is strongly linked with an artificial somatosensory system that drives the robot behavior at a low level and influences its motivation. Both long-term memory and short-term memory store relevant data to detect and recognize the social context (and social practice), and the human social behavior. Using both internal and external evaluations, the robot learns and improves its social skills, which take into account its physiological and emotional demands (affiliation, competence, certainty). Social interaction is encoded in the cognitive architecture by considering at the same level the human understanding and the robot communicative actions. This is done by using the same interaction channels (both verbal and nonverbal). Some examples derived from previous works show the effectiveness and the potential of the cognitive architecture.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125165518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-09-01DOI: 10.1109/RTSI.2018.8548436
A. Reatti, F. Corti, S. Q. Antonio, H. Rimal
In this paper we present an original contribution for the development of the wireless power transfer technology in the avionic environment. Flexible ferrites are proposed for the shielding structures of the transmitting and receiving coils to meet mechanical vibration, size and weight constrains for the aircraft onboard applications. A suitable analysis by means the design centering approach is presented and discussed to propose an useful approach for the wireless power transfer devices optimization.
{"title":"Design Centering of Wireless Power Transfer Systems for Avionics","authors":"A. Reatti, F. Corti, S. Q. Antonio, H. Rimal","doi":"10.1109/RTSI.2018.8548436","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548436","url":null,"abstract":"In this paper we present an original contribution for the development of the wireless power transfer technology in the avionic environment. Flexible ferrites are proposed for the shielding structures of the transmitting and receiving coils to meet mechanical vibration, size and weight constrains for the aircraft onboard applications. A suitable analysis by means the design centering approach is presented and discussed to propose an useful approach for the wireless power transfer devices optimization.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122602013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-09-01DOI: 10.1109/RTSI.2018.8548506
P. Salvatori, C. Stallo, A. Coluccia, A. Neri, F. Rispoli
The work deals with introduction of GNSS (Global Navigation Satellite System) technology into the railway sector. Particularly, since the requirements imposed by the railway environment are stringent, the use of an external mean for providing integrity monitoring and augmentation is highly recommended. In this paper, we show an algorithm based on GNSS code double differences to identify and exclude multiple satellite faults by using data acquired by multiple reference stations. The simulations results carried out in this framework are presented in terms of detection probability and false alarm rate.
{"title":"An Integrity Monitoring Algorithm Design Based on Code Double Differences for Rail GNSS Augmentation Network","authors":"P. Salvatori, C. Stallo, A. Coluccia, A. Neri, F. Rispoli","doi":"10.1109/RTSI.2018.8548506","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548506","url":null,"abstract":"The work deals with introduction of GNSS (Global Navigation Satellite System) technology into the railway sector. Particularly, since the requirements imposed by the railway environment are stringent, the use of an external mean for providing integrity monitoring and augmentation is highly recommended. In this paper, we show an algorithm based on GNSS code double differences to identify and exclude multiple satellite faults by using data acquired by multiple reference stations. The simulations results carried out in this framework are presented in terms of detection probability and false alarm rate.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134297901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-09-01DOI: 10.1109/RTSI.2018.8548361
M. Flatz, R. Kutil, M. Vajtersic
The Nonnegative Matrix Factorization (NMF) approximates a large nonnegative matrix as a product of two significantly smaller nonnegative matrices. Because of the nonconvexity of the constrained optimization problem of finding the best approximation, all current algorithms are iterative and optimize the two factor matrices alternatingly. The resulting sublinear convergence rates give rise to the demand for parallel implementations on high performance computers. One of the best algorithms for NMF in terms of convergence is the Hierarchical Alternating Least Squares (HALS) algorithm. While other Alternating Nonnegative Least Squares (ANLS) algorithms have been shown to have a rather straight-forward parallelization because of independent matrix rows and columns, the row and column updates in HALS must be strictly consecutive, which is more difficult to parallelize. We show that a parallelization strategy similar to ANLS parallelizations exists and yields good speedups for up to 64 processes and satisfactory beyond. These are competitive in comparison to previous solutions to the problem. To our knowledge, HALS has not been parallelized before.
{"title":"Parallelization of the Hierarchical Alternating Least Squares Algorithm for Nonnegative Matrix Factorization","authors":"M. Flatz, R. Kutil, M. Vajtersic","doi":"10.1109/RTSI.2018.8548361","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548361","url":null,"abstract":"The Nonnegative Matrix Factorization (NMF) approximates a large nonnegative matrix as a product of two significantly smaller nonnegative matrices. Because of the nonconvexity of the constrained optimization problem of finding the best approximation, all current algorithms are iterative and optimize the two factor matrices alternatingly. The resulting sublinear convergence rates give rise to the demand for parallel implementations on high performance computers. One of the best algorithms for NMF in terms of convergence is the Hierarchical Alternating Least Squares (HALS) algorithm. While other Alternating Nonnegative Least Squares (ANLS) algorithms have been shown to have a rather straight-forward parallelization because of independent matrix rows and columns, the row and column updates in HALS must be strictly consecutive, which is more difficult to parallelize. We show that a parallelization strategy similar to ANLS parallelizations exists and yields good speedups for up to 64 processes and satisfactory beyond. These are competitive in comparison to previous solutions to the problem. To our knowledge, HALS has not been parallelized before.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124809914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-09-01DOI: 10.1109/RTSI.2018.8548439
P. Mariani, L. Vesce, A. D. Carlo
Owing to its peculiar properties such as transparency, weak angle dependence and improved power conversion efficiency (PCE) at diffused light, DSSCs (Dye Sensitized Solar Cells) are well suited for Building Integrated PhotoVoltaic (BIPV). For large area DSSC devices and modules, one of the main causes of sealing failure is the deformation of the glass substrates due to the sintering process of TiO2which occurs significantly at temperatures around 500 °C. The novel class of realized DSSMs (Dye Sensitized Solar Modules) consists in a “Glass/Plastic hybrid” structure with a photo-electrode developed on glass-FTO and a counter-electrode developed on PET-ITO. By adopting this unique solution, it is possible to anneal the photo-electrode at temperatures above 500°C for an optimal TiO2sintering and to improve the sturdiness of the devices adapting the flexible counter-electrode on the rigid photo-electrode. Developing the counter-electrode on PET-ITO we halved the thickness and weight of the devices, strengthens the commitment of DSSC technology in BIPV sector where the weights and the volumes occupied by components play a fundamental role in design, fabrication and costs.
{"title":"A Novel Class of Dye-Sensitized Solar Modules. Glass-Plastic Structure for Mechanically Stable Devices","authors":"P. Mariani, L. Vesce, A. D. Carlo","doi":"10.1109/RTSI.2018.8548439","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548439","url":null,"abstract":"Owing to its peculiar properties such as transparency, weak angle dependence and improved power conversion efficiency (PCE) at diffused light, DSSCs (Dye Sensitized Solar Cells) are well suited for Building Integrated PhotoVoltaic (BIPV). For large area DSSC devices and modules, one of the main causes of sealing failure is the deformation of the glass substrates due to the sintering process of TiO2which occurs significantly at temperatures around 500 °C. The novel class of realized DSSMs (Dye Sensitized Solar Modules) consists in a “Glass/Plastic hybrid” structure with a photo-electrode developed on glass-FTO and a counter-electrode developed on PET-ITO. By adopting this unique solution, it is possible to anneal the photo-electrode at temperatures above 500°C for an optimal TiO2sintering and to improve the sturdiness of the devices adapting the flexible counter-electrode on the rigid photo-electrode. Developing the counter-electrode on PET-ITO we halved the thickness and weight of the devices, strengthens the commitment of DSSC technology in BIPV sector where the weights and the volumes occupied by components play a fundamental role in design, fabrication and costs.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"162 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134299224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-09-01DOI: 10.1109/RTSI.2018.8548401
S. Favuzza, M. Ippolito, R. Musca, M. N. Navia, E. R. Sanseverino, G. Zizzo, M. Bongiorno
Renewable Energy Sources are posing critical issues related to the mining of power systems stability, essentially due to a decrement of the inertial response during system's contingencies. As a consequence, to preserve the security and the reliability of the system, it is necessary to adopt new frequency adjustments mechanisms. This issue becomes particularly critical in isolated power systems, like those of small islands not supplied by the main grid, in the case of high shares of production from unpredictable renewabies such as photovoitaic and wind sources. In this framework, the present work deals with the analysis of the variation of the inertia time constant of a small island in various scenarios characterized by a different share of renewable energy. The study represents the first step of a more extended feasibility study for the conversion of a traditional power system based on fossil fuel towards a renewable energy-based power system.
{"title":"An Analysis of the Intertial Response of Small Isolated Power Systems in Presence of Generation from Renewable Energy Sources","authors":"S. Favuzza, M. Ippolito, R. Musca, M. N. Navia, E. R. Sanseverino, G. Zizzo, M. Bongiorno","doi":"10.1109/RTSI.2018.8548401","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548401","url":null,"abstract":"Renewable Energy Sources are posing critical issues related to the mining of power systems stability, essentially due to a decrement of the inertial response during system's contingencies. As a consequence, to preserve the security and the reliability of the system, it is necessary to adopt new frequency adjustments mechanisms. This issue becomes particularly critical in isolated power systems, like those of small islands not supplied by the main grid, in the case of high shares of production from unpredictable renewabies such as photovoitaic and wind sources. In this framework, the present work deals with the analysis of the variation of the inertia time constant of a small island in various scenarios characterized by a different share of renewable energy. The study represents the first step of a more extended feasibility study for the conversion of a traditional power system based on fossil fuel towards a renewable energy-based power system.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133166857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-09-01DOI: 10.1109/RTSI.2018.8548421
R. Capua, G. Olivieri, L. Gattuso, M. Giangolini, C. Stallo, P. Salvatori, A. Neri, F. Rispoli
The present work shows the results of a performance analysis for evaluating the impact of spoofing on GNSS Integrity for transport applications. Spoofing represents a potential risk to be managed for GNSS safety-related land mobile applications. To this aim a Virtual Test Bed has been generated. A rover receiver has been developed through an SDR, and relevant spoofed signal injected through a hardware simulator. A performance analysis software simulator performed relevant integrity study. Stanford plots have been generated for analyzing integrity performance to guarantee a THR=10-9/h in DGNSS mode.
{"title":"Spoofing Impact on GNSS Integrity in the Transport Context: A Tool for the Performance Analysis","authors":"R. Capua, G. Olivieri, L. Gattuso, M. Giangolini, C. Stallo, P. Salvatori, A. Neri, F. Rispoli","doi":"10.1109/RTSI.2018.8548421","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548421","url":null,"abstract":"The present work shows the results of a performance analysis for evaluating the impact of spoofing on GNSS Integrity for transport applications. Spoofing represents a potential risk to be managed for GNSS safety-related land mobile applications. To this aim a Virtual Test Bed has been generated. A rover receiver has been developed through an SDR, and relevant spoofed signal injected through a hardware simulator. A performance analysis software simulator performed relevant integrity study. Stanford plots have been generated for analyzing integrity performance to guarantee a THR=10-9/h in DGNSS mode.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"59 28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115245607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-09-01DOI: 10.1109/RTSI.2018.8548463
Mickaël Coustaty, Nicolas Sidère, J. Ogier
In this paper, we propose to reconsider the myth of the paperless office and we explore a new user experience, the augmented document, in order to digitize a document, extract information (like scientific network) in order to find similar content. This framework exploits image processing tools to segment the document and facilitate the manipulation of its structure. Then, OCR is performed to enable textual edition: copy/paste from other sources, correct mistakes, change text box shapes. Moreover, in order to help the user enriching the document, the system is able to propose similar content (like papers from the same researcher, documents from the same topic …). This all-in-one framework was tested on many different devices like interactive table, HP Sprout, or Microsoft Surface, and all the actions can be performed with basic gestures without requiring technical expertise.
{"title":"Augmented Documents for Research Contact Management","authors":"Mickaël Coustaty, Nicolas Sidère, J. Ogier","doi":"10.1109/RTSI.2018.8548463","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548463","url":null,"abstract":"In this paper, we propose to reconsider the myth of the paperless office and we explore a new user experience, the augmented document, in order to digitize a document, extract information (like scientific network) in order to find similar content. This framework exploits image processing tools to segment the document and facilitate the manipulation of its structure. Then, OCR is performed to enable textual edition: copy/paste from other sources, correct mistakes, change text box shapes. Moreover, in order to help the user enriching the document, the system is able to propose similar content (like papers from the same researcher, documents from the same topic …). This all-in-one framework was tested on many different devices like interactive table, HP Sprout, or Microsoft Surface, and all the actions can be performed with basic gestures without requiring technical expertise.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115031936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-09-01DOI: 10.1109/RTSI.2018.8548372
F. Nunziata, A. Buono, M. Migliaccio, M. Moctezuma, F. Parmiggiani, G. Aulicino
Since 2016 the fracture of the Larsen-C ice shelf has been regularly observed in the Eastern Weddell Sea (68°S, 61°W, Antarctica). This process led to the final collapse in July 2017, when an area of about 6000 km2 (i. e., about 9-12% of the whole shelf) was lost. In this study the resulting calved iceberg, termed as “A-68” from the U. S. National Ice Center, is observed using multi-frequency and multi-polarization Synthetic Aperture Radar (SAR) satellite platforms that include L-band Alos PaISAR-2, C-band Sentinel-l and X-band COSMO-SkyMed. A large set of SAR scenes were considered, collected in ScanSAR imaging modes over a time span of about 1 year, to analyze the iceberg properties and its melting process and drifting.
{"title":"Multi-Frequency and Multi-Polarization Synthetic Aperture Radar for the Larsen-C A-68 Iceberg Monitoring","authors":"F. Nunziata, A. Buono, M. Migliaccio, M. Moctezuma, F. Parmiggiani, G. Aulicino","doi":"10.1109/RTSI.2018.8548372","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548372","url":null,"abstract":"Since 2016 the fracture of the Larsen-C ice shelf has been regularly observed in the Eastern Weddell Sea (68°S, 61°W, Antarctica). This process led to the final collapse in July 2017, when an area of about 6000 km2 (i. e., about 9-12% of the whole shelf) was lost. In this study the resulting calved iceberg, termed as “A-68” from the U. S. National Ice Center, is observed using multi-frequency and multi-polarization Synthetic Aperture Radar (SAR) satellite platforms that include L-band Alos PaISAR-2, C-band Sentinel-l and X-band COSMO-SkyMed. A large set of SAR scenes were considered, collected in ScanSAR imaging modes over a time span of about 1 year, to analyze the iceberg properties and its melting process and drifting.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123912524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-09-01DOI: 10.1109/RTSI.2018.8548415
M. Casaletto, A. Privitera, V. Figa
X-ray Photoemission Spectroscopy (XPS) is a surface-sensitive analytical technique commonly used in the field of materials science at the nanoscale level. Historically applied to the industrial field, it is also successfully used in the investigation of Cultural Heritage, both for diagnostics and for conservation purposes. The nature and the state of conservation of artefacts can be assessed by XPS surface analysis, evidencing the presence of efflorescence, patinas, degradation/corrosion products, coatings and protective layers applied in restoration treatments. The feasibility of probing the surface reactivity in the nanometric range and understanding the chemical processes, occurring in different aggressive environments, makes XPS a very powerful tool also in the field of Conservation of Cultural Heritage. This analytical technique can be very fruitfully employed for the validation of new eco-compatible conservation products (e.g. corrosion inhibitors for metallic artworks) and for the choice of the suitable conservation and restoration protocols. In this work, some case-studies related to the application of XPS to the conservation of copper-based and iron-based alloys artefacts are reported. In particular, the focus is on the evaluation of the conservation state and the identification of degradation phenomena of archaeological bronzes and on the assessment of naturally-derived corrosion inhibitors for a sustainable conservation of iron-based artworks.
{"title":"Nanoscale Investigations of the Corrosion of Metallic Artworks by X-Ray Photoemission Spectroscopy","authors":"M. Casaletto, A. Privitera, V. Figa","doi":"10.1109/RTSI.2018.8548415","DOIUrl":"https://doi.org/10.1109/RTSI.2018.8548415","url":null,"abstract":"X-ray Photoemission Spectroscopy (XPS) is a surface-sensitive analytical technique commonly used in the field of materials science at the nanoscale level. Historically applied to the industrial field, it is also successfully used in the investigation of Cultural Heritage, both for diagnostics and for conservation purposes. The nature and the state of conservation of artefacts can be assessed by XPS surface analysis, evidencing the presence of efflorescence, patinas, degradation/corrosion products, coatings and protective layers applied in restoration treatments. The feasibility of probing the surface reactivity in the nanometric range and understanding the chemical processes, occurring in different aggressive environments, makes XPS a very powerful tool also in the field of Conservation of Cultural Heritage. This analytical technique can be very fruitfully employed for the validation of new eco-compatible conservation products (e.g. corrosion inhibitors for metallic artworks) and for the choice of the suitable conservation and restoration protocols. In this work, some case-studies related to the application of XPS to the conservation of copper-based and iron-based alloys artefacts are reported. In particular, the focus is on the evaluation of the conservation state and the identification of degradation phenomena of archaeological bronzes and on the assessment of naturally-derived corrosion inhibitors for a sustainable conservation of iron-based artworks.","PeriodicalId":363896,"journal":{"name":"2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128321527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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