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1. Correction to: Major adverse cardiovascular events in non-valvular atrial fibrillation with chronic obstructive pulmonary disease: the ARAPACIS study

Author

Raparell, V, Pastori, D, Pignataro, S, Vestri, A, Pignatelli, P, Cangemi, R, Proietti, M, Davì, G, Hiatt, W, Lip, G, Corazza, G, Perticone, F, Violi, F, Basili, S, Alessandri, C, Serviddio, G, Palange, P, Greco, E, Bruno, G, Averna, M, Giammanco, A, Sposito, P, De Cristofaro, R, Carulli, L, Di Gennaro, L, Pellegrini, E, Cominacini, L, Mozzini, C, Pasini, A, Sprovieri, M, Spagnuolo, V, Cerqua, G, Cerasola, G, Mulé, G, Barbagallo, M, Lo Sciuto, S, Monteverde, A, Saitta, A, Lo Gullo, A, Malatino, L, Cilia, C, Terranova, V, Pisano, M, Pinto, A, Di Raimondo, D, Tuttolomondo, A, Conigliaro, R, Signorelli, S, De Palma, D, Galderisi, M, Cudemo, G, Galletti, F, Fazio, V, De Luca, N, Meccariello, A, Caputo, D, De Donato, M, Iannuzi, A, Bresciani, A, Giunta, R, Utili, R, Iorio, V, Adinolfi, L, Sellitto, C, Iuliano, N, Bellis, P, Tirelli, P, Sacerdoti, D, Vanni, D, Iuliano, L, Ciacciarelli, M, Pacelli, A, Palazzuoli, A, Cacciafesta, M, Gueli, N, Lo Iacono, C, Brusco, S, Verrusio, W, Nobili, L, Tarquinio, N, Pellegrini, F, Vincentelli, G, Ravallese, F, Santini, C, Letizia, C, Petramala, L, Zinnamosca, L, Minisola, S, Cilli, M, Colangelo, L, Falaschi, P, Martocchia, A, Pastore, F, Bertazzoni, G, E Halabieh E, Attall, Paradiso, M, Lizzi, E, Timmi, S, Battisti, P, Cerci, S, Ciavolella, M, Di Veroli, C, Malci, F, De Ciocchis, A, Abate, D, Castellino, P, Zanoli, L, Fidone, F, Mannarino, E, Pasqualini, L, Oliverio, G, Pende, A, Artom, N, Ricchio, R, Fimognari, F, Alletto, M, Messina, S, Sesti, G, Arturi, F, Succurro, E, Fiorentino, T, Pedace, E, Scarpino, P, Carullo, G, Maio, R, Sciacqua, A, Frugiuele, P, Battaglia, G, Atzori, S, Delitala, G, Angelucci, E, Sestili, S, Traisci, G, De Feudis, L, Di Michele, D, Fava, A, Balsano, C, De Ciantis, P, Desideri, G, Camerota, A, Mezzetti, M, Gresele, P, Vedovati, C, Fierro, T, Puccetti, L, Bertolotti, M, Mussi, C, Boddi, M, Savino, A, Contri, S, Degl'Innocenti, G, Saller, A, Fabris, F, Pesavento, R, Filippi, L, Vedovetto, V, Puato, M, Treleani, M, De Luca, E, De Zaiacomo, F, Giantin, V, Semplicini, A, Minuz, P, Romano, S, Fantin, F, Manica, A, Stockner, I, Pattis, P, Gutmann, B, Catena, C, Colussi, G, Sechi, L, Annoni, G, Bruni, A, Castagna, A, Spinelli, D, Miceli, E, Padula, D, Schinco, G, Spreafico, S, Secchi, B, Vanoli, M, Casella, G, Pulixi, E, Sansone, L, Serra, M, Longo, S, Antonaci, S, Belfiore, A, Frualdo, M, Palasciano, G, Ricci, L, Ventrella, F, Bianco, C, Santovito, D, Cipollone, F, Nicolai, S, Salvati, F, Rini, G, Scozzari, F, Muiesan, M, Salvetti, M, Bazza, A, Picardi, A, Vespasiani-Gentilucci, U, De Vincentis, A, Cosio, P, Terzolo, M, Madaffari, B, Parasporo, B, Fenoglio, L, Bracco, C, Melchio, R, Gentili, T, Salvi, A, Nitti, C, Gabrielli, A, Martino, G, Capucci, A, Brambatti, M, Sparagna, A, Tirotta, D, Andreozzi, P, Ettorre, E, Viscogliosi, G, Servello, A, Musumeci, M, Delfino, M, Giorgi, A, Glorioso, N, Melis, G, Marras, G, Matta, M, Sacco, A, Stellitano, E, Scordo, A, Russo, F, Caruso, A, Porreca, E, Tana, M, Ferri, C, Cheli, P, Portincasa, P, Muscianisi, G, Giordani, S, Stanghellini, V, Sabbà, C, Mancuso, G, Bartone, M, Calipari, D, Arcidiacono, G, Bellanuova, I, Ferraro, M, Marigliano, G, Cozzolino, D, Lampitella, A, Acri, V, Galasso, D, Mazzei, F, Buratti, A, Galasso, S, Porta, M, Brizzi, M, Fattorini, A, Sampietro, F, D'Angelo, A, Manfredini, R, Pala, M, Fabbian, F, Moroni, C, Valente, L, Lopreiato, F, Parente, F, Granata, M, Moia, M, Braham, S, Rossi, M, Pesce, M, Gentile, A, Catozzo, V, Baciarello, G, Cosimati, A, Ageno, W, Rancan, E, Guasti, L, Ciccaglioni, A, Negri, S, Polselli, M, Prisco, D, Marcucci, R, Ferro, D, Perri, L, Saliola, M, Del Ben, M, Angelico, F, Baratta, F, Migliacci, R, Porciello, G, Corrao, S, Raparelli, V, Napoleone, L, Talerico, G, Amoroso, D, Romiti, G, Ruscio, E, Toriello, F, Sperduti, N, Todisco, T, Di Tanna, G, Sacchetti, M, Puddu, P, Farcomeni, A, Anzaldi, M, Bazzini, C, Bianchi, P, Boari, B, Buonauro, A, Buttà, C, Buzzetti, E, Calabria, S, Capeci, W, Caradio, F, Carleo, P, Carrabba, M, Castorani, L, Cecchetto, L, Cicco, S, Cimini, C, Colombo, B, De Giorgi, A, De Vuono, S, De Corso, L, Denegri, A, D Giosia P, Durant Mangoni, E, Falsetti, L, Forgione, A, Giorgini, P, Grassi, D, Grembiale, A, Hijazi, D, Iamele, L, Lorusso, G, Marchese, A, Marra, A, Masala, M, Miceli, G, Montebianc Abenavoli, L, Murgia, G, Naccarato, P, Pattoneri, P, Perego, F, Pesce, P, Piano, S, Pinna, M, Pinto, D, Pretti, V, Pucci, G, Salinaro, F, Salzano, A, Santilli, F, Scarpini, F, Scicali, R, Sirico, D, Suppressa, P, Talia, M, Tassone, E, Torres, D, Vazzana, N, Vecchio, C, Vidili, G, Vitale, F, Zaccone, V, ARAPACI Stud Collaborators, Raparelli, Valeria, Pastori, Daniele, Pignataro, Serena Francesca, Vestri, Anna Rita, Pignatelli, Pasquale, Cangemi, Roberto, Proietti, Marco, Davì, Giovanni, Hiatt, William Robert, Lip, Gregory Yoke Hong, Corazza, Gino Roberto, Perticone, Francesco, Violi, Francesco, Basili, Stefania, Alessandri, C., Serviddio, G., Palange, P., Greco, E., Bruno, G., Averna, M., Giammanco, A., Sposito, P., De Cristofaro, R., Carulli, L., Di Gennaro, L., Pellegrini, E., Cominacini, L., Mozzini, C., Pasini, A.F., Sprovieri, M., Spagnuolo, V., Cerqua, G., Cerasola, G., Mulé, G., Barbagallo, M., Lo Sciuto, S., Monteverde, A., Saitta, A., Lo Gullo, A., Malatino, L., Cilia, C., Terranova, V., Pisano, M., Pinto, A., Di Raimondo, D., Tuttolomondo, A., Conigliaro, R., Signorelli, S., De Palma, D., Galderisi, M., Cudemo, G., Galletti, F., Fazio, V., De Luca, N., Meccariello, A., Caputo, D., De Donato, M.T., Iannuzi, A., Bresciani, A., Giunta, R., Utili, R., Iorio, V., Adinolfi, L.E., Sellitto, C., Iuliano, N., Bellis, P., Tirelli, P., Sacerdoti, D., Vanni, D., Iuliano, L., Ciacciarelli, M., Pacelli, A., Palazzuoli, A., Cacciafesta, M., Gueli, N., Lo Iacono, C., Brusco, S., Verrusio, W., Nobili, L., Tarquinio, N., Pellegrini, F., Vincentelli, G.M., Ravallese, F., Santini, C., Letizia, C., Petramala, L., Zinnamosca, L., Minisola, S., Cilli, M., Colangelo, L., Falaschi, P., Martocchia, A., Pastore, F., Bertazzoni, G., Attalla El Halabieh, E., Paradiso, M., Lizzi, E.M., Timmi, S., Battisti, P., Cerci, S., Ciavolella, M., Di Veroli, C., Malci, F., De Ciocchis, A., Abate, D., Castellino, P., Zanoli, L., Fidone, F., Mannarino, E., Pasqualini, L., Oliverio, G., Pende, A., Artom, N., Ricchio, R., Fimognari, F.L., Alletto, M., Messina, S., Sesti, G., Arturi, F., Succurro, E., Fiorentino, T.V., Pedace, E., Scarpino, P.E., Carullo, G., Maio, R., Sciacqua, A., Frugiuele, P., Battaglia, G., Atzori, S., Delitala, G., Angelucci, E., Sestili, S., Traisci, G., De Feudis, L., Di Michele, D., Fava, A., Balsano, C., De Ciantis, P., Desideri, G., Camerota, A., Mezzetti, M., Gresele, P., Vedovati, C., Fierro, T., Puccetti, L., Bertolotti, M., Mussi, C., Boddi, M., Savino, A., Contri, S., Degl’Innocenti, G., Saller, A., Fabris, F., Pesavento, R., Filippi, L., Vedovetto, V., Puato, M., Treleani, M., De Luca, E., De Zaiacomo, F., Giantin, V., Semplicini, A., Minuz, P., Romano, S., Fantin, F., Manica, A., Stockner, I., Pattis, P., Gutmann, B., Catena, C., Colussi, G., Sechi, L.A., Annoni, G., Bruni, A.A., Castagna, A., Spinelli, D., Miceli, E., Padula, D., Schinco, G., Spreafico, S., Secchi, B., Vanoli, M., Casella, G., Pulixi, E.A., Sansone, L., Serra, M.G., Longo, S., Antonaci, S., Belfiore, A., Frualdo, M., Palasciano, G., Ricci, L., Ventrella, F., Bianco, C., Santovito, D., Cipollone, F., Nicolai, S., Salvati, F., Rini, G.B., Scozzari, F., Muiesan, M.L., Salvetti, M., Bazza, A., Picardi, A., Vespasiani-Gentilucci, U., De Vincentis, A., Cosio, P., Terzolo, M., Madaffari, B., Parasporo, B., Fenoglio, L., Bracco, C., Melchio, R., Gentili, T., Salvi, A., Nitti, C., Gabrielli, A., Martino, G.P., Capucci, A., Brambatti, M., Sparagna, A., Tirotta, D., Andreozzi, P., Ettorre, E., Viscogliosi, G., Servello, A., Musumeci, M., Delfino, M., Giorgi, A., Glorioso, N., Melis, G., Marras, G., Matta, M., Sacco, A., Stellitano, E., Scordo, A., Russo, F., Caruso, A.A., Porreca, E., Tana, M., Ferri, C., Cheli, P., Portincasa, P., Muscianisi, G., Giordani, S., Stanghellini, V., Sabbà, C., Mancuso, G., Bartone, M., Calipari, D., Arcidiacono, G., Bellanuova, I., Ferraro, M., Marigliano, G., Cozzolino, D., Lampitella, A., Acri, V., Galasso, D., Mazzei, F., Buratti, A., Galasso, S., Porta, M., Brizzi, M.F., Fattorini, A., Sampietro, F., D’Angelo, A., Manfredini, R., Pala, M., Fabbian, F., Moroni, C., Valente, L., Lopreiato, F., Parente, F., Granata, M., Moia, M., Braham, S., Rossi, M., Pesce, M., Gentile, A., Catozzo, V., Baciarello, G., Cosimati, A., Ageno, W., Rancan, E., Guasti, L., Ciccaglioni, A., Negri, S., Polselli, M., Prisco, D., Marcucci, R., Ferro, D., Perri, L., Cangemi, R., Saliola, M., Del Ben, M., Angelico, F., Baratta, F., Migliacci, R., Porciello, G., Corrao, S., Proietti, M., Raparelli, V., Napoleone, L., Talerico, G., Amoroso, D., Romiti, G.F., Ruscio, E., Toriello, F., Sperduti, N., Todisco, T., Di Tanna, G., Sacchetti, M.L., Puddu, P.E., Farcomeni, A., Anzaldi, M., Bazzini, C., Bianchi, P.I., Boari, B., Buonauro, A., Buttà, C., Buzzetti, E., Calabria, S., Capeci, W., Caradio, F., Carleo, P., Carrabba, M.D., Castorani, L., Cecchetto, L., Cicco, S., Cimini, C., Colombo, B.M., De Giorgi, A., De Vuono, S., Del Corso, L., Denegri, A., Di Giosia, P., Durante Mangoni, E., Falsetti, L., Forgione, A., Giorgini, P., Grassi, D., Grembiale, A., Hijazi, D., Iamele, L., Lorusso, G., Marchese, A., Marra, A.M., Masala, M., Miceli, G., Montebianco Abenavoli, L., Murgia, G., Naccarato, P., Pattoneri, P., Perego, F., Pesce, P., Piano, S., Pinna, M., Pinto, D., Pretti, V., Pucci, G., Salinaro, F., Salzano, A., Santilli, F., Scarpini, F., Scicali, R., Sirico, D., Suppressa, P., Talia, M., Tassone, E.J., Torres, D., Vazzana, N., Vecchio, C.R., Vidili, G., Vitale, F., and Zaccone, V.

Subjects
medicine.medical_specialty, Settore MED/09 - Medicina Interna, business.industry, Internal Medicine, Emergency Medicine, Emergency medicine, medicine, Non valvular atrial fibrillation, Pulmonary disease, business
Abstract

Correction to: Internal and Emergency Medicine (2018) 13:651–660 https://doi.org/10.1007/s11739-018-1835-9 In the original publication, one of the ARAPACIS collaborators Dr. “Leonardo Di Gennaro” name has been erroneously mentioned as “Leonardo De Gennaro”.

Published
2018

7. A mixed C-VIKOR fuzzy approach for material selection during design phase: A case study in valve seats for high performance engine

Author

Alessandro Giorgetti, Cavallini, C., Arcidiacono, G., Citti, P., Giorgetti, Alessandro, Cavallini, Carlo, Arcidiacono, Gabriele, and Citti, Paolo

Subjects
Coating, Mechanical component, MADM, Surface mechanic, Valve seats, Material selection method, High performance engine, Design method
Abstract

This paper introduces an innovative simple method to manage data uncertainly based on fuzzy logic. The proposed approach perfectly integrates with the C-VIKOR algorithm used to technically ranking the candidate materials. This method aims at helping design teams to select optimal material(s) for the success of a product at the early stages of product development. When neither a material team nor a material expert is available within the company, the design team has to face autonomously with this task. A support system is thus desirable: it has to be easy to use, and not only to rank the candidate materials from a technical point of view, but also to show to the design team the confidence with which to handle this ranking. These conditions are seldom addressed by the models presented in literature, despite their importance. The few existing approaches use a complex probability logic that is tricky to manage by non-expert users. An easy-to-use support system is needed because the smart use of materials is becoming a must-be for the leading industries that have understood how the materials can functionalize the product, rather than simply represent the product hardware. The successful applicability of the proposed method is reported through a case study, debating the material selection for the production of the valve seats component in a high-performance engine, showing the practical feasibility of the method itself.

8. Conceptual framework for user based RPM

Author

Pacifici, B., Chiara Parretti, Girgenti, A., Giorgetti, A., Arcidiacono, G., IEOM Society, Pacifici, Beniamino, Parretti, Chiara, Girgenti, Andrea, Giorgetti, Alessandro, and Arcidiacono, Gabriele

Subjects
EHealth, Health care, Holistic framework, RPM System
Abstract

Nowadays, new conjunctions between communication technologies and devices in the health care context, and between health and social care, create important opportunities concerning the development of frameworks and devices/interoperable systems (eHealth systems), particularly in the ever increasingly Remote Patient Monitoring (RPM) systems environment. However most of users' needs and requirements are not really satisfied with a poor customization of solutions in according to specific cluster of users. This is mainly due to a lack of truly interoperable tools that allow a horizontal integration between the various medical / specialized tools and utilities. This paper introduces an effective conceptual framework to manage the many stakeholders connected to the development of RPM solutions.

9. Design of a measurement system for the estimation of the knee kinematics

Author

Arcidiacono, G., Innocenti, B., Macrì, A., Alessandro Giorgetti, Arcidiacono, Gabriele, Innocenti, Bernardo, Macrì, Antonio, and Giorgetti, Alessandro

Subjects
Kinematics, Axiomatic Design, Biomechanic
Abstract

Through the use of Axiomatic Design, a measurement system to evaluate the kinematics of human joints was developed. In this paper the needs of Université Libre de Bruxelles (ULB) are analyzed in order to build a measurement system able to evaluate the position of infrared marker in space. A system of 10 cameras, produced by Optitrack, able to track infrared reflective bodies, has been configured and optimized to measure the movement that happens within a known volume, calibrated, where it is possible to position joints using appropriate fixtures, so that it is possible to evaluate the kinematics without constraints that could modify the natural movements.

11. Oral Calcitriol Use, Vertebral Fractures, and Vitamin K in Hemodialysis Patients: A Cross-Sectional Study

Author

Piergiorgio Messa, Maurizio Gallieni, Roberto Vettor, Francesco Locatelli, Maura Ravera, Giovanni Tripepi, Serge Ferrari, Laura Cosmai, Markus Ketteler, Giuseppe Cianciolo, Maria Fusaro, Giorgio Iervasi, Thomas L. Nickolas, Cristina Politi, Martina Zaninotto, Gaetano La Manna, Maria Cristina Mereu, Lorenzo Gasperoni, Stefania Sella, Gaetano Arcidiacono, Mario Plebani, Sandro Giannini, Andrea Aghi, Fusaro M., Cianciolo Giuseppe, Tripepi G., Plebani M., Aghi A., Politi C., Zaninotto M., Nickolas T.L., Ferrari S., Ketteler M., La Manna G., Gasperoni L., Messa P., Ravera M., Gallieni M., Cosmai L., Locatelli F., Iervasi G., Vettor R., Mereu M.C., Sella S., Arcidiacono G., and Giannini S.

Subjects
Vitamin, Fibroblast growth factor 23, medicine.medical_specialty, Vitamin K, VERTEBRAL FRACTURES, Calcitriol, Endocrinology, Diabetes and Metabolism, Parathyroid hormone, Gastroenterology, chemistry.chemical_compound, Renal Dialysis, Internal medicine, DIALYSIS, Matrix gla protein, Chronic Kidney Disease, Vitamin D and neurology, medicine, Humans, Orthopedics and Sports Medicine, Vitamin D, Vascular calcification, Cross-Sectional Studie, biology, business.industry, Spinal Fracture, Oral calcitriol, Dialysi, CHRONIC KIDNEY DISEASE, ORAL CALCITRIOL, VASCULAR CALCIFICATION, VITAMIN D, VITAMIN K, medicine.disease, Fibroblast Growth Factor-23, Cross-Sectional Studies, chemistry, Parathyroid Hormone, Osteocalcin, biology.protein, Spinal Fractures, Calcium, Vertebral fracture, business, Kidney disease, medicine.drug, Human
Abstract

Fractures and vascular calcifications (VCs) are common in patients with chronic kidney disease (CKD). They are related to abnormalities in vitamin D metabolism, calcium, phosphorus, parathyroid hormone, and fibroblast growth factor 23 (FGF23)/Klotho that occur with CKD. Impaired vitamin D metabolism and abnormal levels of calcium, phosphate, parathyroid hormone (PTH), and FGF23/Klotho drive bone and vascular changes in CKD. It is unclear if oral calcitriol safely mitigates fracture risk without increasing the burden of calcifications. Therefore, we investigated whether treatment with calcitriol affected the prevalence of fractures and VC progression in hemodialysis (HD) patients. This report is a secondary analysis of the Vitamin K Italian (VIKI) study, a cross-sectional study involving 387 HD patients. We assessed vitamin 25(OH)D, alkaline phosphatase, PTH, calcium, phosphate, osteocalcin or bone Gla protein, matrix Gla protein, and vitamin K levels. Vertebral fractures (VFs) and VCs were determined by spine radiograph. A reduction of >20% of vertebral body height was considered a VF. VCs were quantified by the length of calcific lesions along the arteries. The patients treated with oral calcitriol were 177 of 387 patients (45.7%). The prevalence of VF was lower in patients receiving oral calcitriol than in those untreated (48.6% versus 61.0%, p=0.015), whereas the presence of aortic and iliac calcifications was similar (aortic: 81.9% versus 79.5%, respectively, p=0.552; iliac: 52.0% and 59.5%, respectively, p=0.167). In multivariable logistic regression analysis, oral calcitriol was associated with a 40.2% reduced odds of fracture (OR 0.598; 95% confidence interval [CI], 0.363–0.985; p=0.043). In conclusion, we found a significant association between oral calcitriol and lower VF in HD patients without an increase in the burden of VC. Further prospective and interventional studies are needed to confirm these findings. © 2021 American Society for Bone and Mineral Research (ASBMR).

Published
2021

12. HNCR model following robust approach

Author

Andrea Ciappi, Paolo Citti, Gabriele Arcidiacono, Alessandro Giorgetti, Riccardo Barbieri, Giorgetti, A., Arcidiacono, G., Ciappi, A., Barbieri, R., and Citti, P.

Subjects
non-conformities detection, 0209 industrial biotechnology, 020901 industrial engineering & automation, product develoment, root cause analysis, Computer science, 0502 economics and business, 05 social sciences, 02 engineering and technology, quality control, Management Science and Operations Research, Safety, Risk, Reliability and Quality, 050203 business & management
Abstract

This paper introduces a new model for Non-Conformity Management, aimed at overcoming the limitations occurring when dealing with Non-Conformities through traditional methods like Root Cause Analysis. The need to suggest a new approach to Non-Conformities Management is connected to those situations where a large variety of Non-Conformities is recorded, with a significant number of low-impacting ones; addressing them directly through methods like Root Cause Analysis would often be not economically viable. In this context, the paper discusses Holistic Non-Conformities Reduction (HNCR) approach as a suitable option to address this kind of business situations. In particular, the contribution of this paper is related to the development of HNCR model and the evaluation of how to properly structure the model and the flow that shall be followed. By clustering Non-Conformities into flexible categories to be easily modified, expanded and rearranged through time, the HNCR model allows to identify new critical Non-Conformity families, otherwise hardly detectable. A proof of concept relative to HNCR deployment is presented: 2 different scenarios are introduced, the first being the Non-Conformities management within the extended supply chain of a large pharmaceutical distribution centre, while the second deals with Non-Conformities in the context of a company's new programs development.

Published
2018

13. 'Mechanical characterization of parts fabricated by additive manufacturing'

Author

Giorgio Olmi, Massimiliano De Agostinis, Gabriele Arcidiacono, De Agostinis M., Olmi G., and Arcidiacono G.

Subjects
Design Method, Optimization Problem, Materials science, Optimization problem, Additive Manufacturing, Mechanical Engineering, Metallic materials, Experimental Data, Nanotechnology, Polymeric Material, Repair and Cost Issues, Metallic Material, Characterization (materials science)
Abstract

The explosion in the numbers of industrial applications making use of additive manufacturing (AM) techniques requires the use of reliable experimental data and appropriate design methods in order to ensure the adequate performance and safety of newly designed AM components. This Special Issue represents a collection of both experimental end numerical studies, covering the two realms of metallic and polymeric materials. The Special Issue is completed by papers focused on design and optimization problems, and on repair as well as on cost issues related to the production of AM components, which provide useful guidelines for design engineers and researchers.

Published
2021

14. Design and validation of low-cost handling equipment for the use of Barkhausen Noise Testing in worm gears grinding burn detection

Author

G. Arcidiacono, A. Polidoro, A. Giorgetti, L. Pompei, P. Citti, P. Molinari, Citti, P, Molinari, P, Giorgetti, A, Polidoro, A, Pompei, L, and Arcidiacono, G

Subjects
symbols.namesake, Worm drive, Materials science, business.product_category, worm gears, Barkhausen, testing, material defect, symbols, business, Barkhausen effect, Automotive engineering, Grinding
Abstract

Worm gears in high-performance gearboxes are often exposed to extreme loads, which requires assuring high production quality. Therefore the most important final characteristics of the workpieces are provided by grinding. One of the most investigated issues of this machining method is grinding burns, who change locally the properties of the material. In many industrial applications, nital etching is used to detect grinding burn. Although it is considered a standard, new types of tests are of great interest in order to reduce costs and make online control possible. One of the Non-Destructive Testing methods is Barkhausen Noise Testing (BNT), which is utilized to assess changes in the surface layer of ferromagnetic materials, especially to monitor changes in their hardness and residual stresses. To obtain accurate measures using this technology the Barkhausen probe handling system is essential. Typically the sensor handling system is an Inline/robot component, an automated component, a semi-automated component, or a manual handling system. Considering this scenario, the use of a manual system could allow having important cost savings but has to be correctly developed to obtain reliable measures. The aim of this paper is to develop a handling equipment for the BNT probe able to assure an adequate level of accuracy and repeatability.

Published
2021

15. Laser Powder Bed Fusion: A Review on the Design Constraints

Author

G. Arcidiacono, A. Giorgetti, P. Citti, F. Ceccanti, Ceccanti, F, Giorgetti, A, Arcidiacono, G, and Citti, P

Subjects
Fusion, Materials science, law, Nuclear engineering, Powder bed, Laser, LPBF, design for additive manufacturing, surface inspectability, part cleaning, law.invention
Abstract

With the creation of additive manufacturing production lines and the adoption of additive technologies, such as Laser Powder Bed Fusion, as standard manufacturing technologies for the mass production of parts, many considerations arise. In particular, product quality assurance is surely a very important aspect to be considered when talking about mass production. Laser powder bed fused parts are characterized by specific characteristics, such as quite rough surfaces and internal cavities filled with powder after the part construction. The need to ensure part quality and the importance to guarantee quality to all the parts made within the production line highlights the need to design the part addressing all the criticalities resulting from the manufacturing process, in addition to the ones related to the operative conditions. In this work, the attention is placed on two important topics: part surface inspectability and part cleaning. In particular, part inspectability is a crucial aspect in determining part coherence with design specifications. Part production via LPBF puts interpretability issues in inspecting the parts. Part cleaning is a crucial topic as well. Part cleaning is related to the design of the part to guarantee a correct powder evacuation from all the internal channels and cavities. Within the work, problems will be defined and design guidelines will be proposed to manage these topics.

Published
2021

16. Axiomatic Design to Improve PRM Airport Assistance

Author

Alessandro Giorgetti, Michela Pugliese, Gabriele Arcidiacono, Mary Kathryn Thompson, Alessandro Giorgetti, Paolo Citti, Dominik Matt, Nam P. Suh, Arcidiacono, G., Giorgetti, A., and Pugliese, M.

Subjects
Engineering, education.field_of_study, business.industry, Process (engineering), Axiomatic Design, PRM, Population, Axiomatic design, Transport engineering, Competition (economics), Terminal (electronics), airport assistance, General Earth and Planetary Sciences, Market share, business, education, Management process, Tourism, General Environmental Science
Abstract

Competition in the air transport market in recent years has prompted companies to search for products and services increasingly innovative and, at the same time, the decrease in development timing and the creation of resources devoted to the study of original technical solutions. One emerging important issue is to facilitate air travel for people with disabilities, elder and dependent people, setting the primary objective of preventing the emergence and spread of new barriers. This aspect is important both for the introduction of several mandatory requirements (rules, laws and regulations) and the increasing market share of this people category due to the aging of population. In this paper it is analyzed the study of the flow of PRM (Passengers with Reduced Mobility) departing, arriving and transiting through an airport terminal. The specific case study is based on the management process of passengers with special assistance for a major Italian tourist airport. The Axiomatic Design method is used to link the customers needs with all the process elements and boundaries: the infrastructure aspects, the limits imposed by security and the availability of appropriate resources (personnel and equipment). Finally some improvement suggestions are made to optimize the passage through the terminal and to ensure full accessibility of the considered environments.

Published
2015
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