Chapter Monitoring online perception of environmental issues on coasts of Sicily

The analysis of big data on human experience (reviews, comments, ratings, etc.) can provide valuable insights to companies and institutions. This pioneer study applied the artificial intelligence proprietary tools of The Data Appeal Company for a different aim: monitoring the online perception of environmental issues on 88 beaches of Sicily. Results proved that it is possible to monitor environmental situation even to sites where there are no other kind of monitoring, using as bases the free and available contents posted by humans online, processed and analyzed by artificial intelligenc

Piattaforma 3DExperience: procedura operativa per la gestione del ciclo di vita di un prodotto e della documentazione di progetto

Il presente documento descrive la procedura operativa per la gestione del ciclo di vita di un prodotto e della documentazione di progetto, implementato dal “Reparto di Progettazione” del Servizio di Meccanica dei Laboratori Nazionali del Gran Sasso (LNGS) dell’INFN (Istituto Nazionale di Fisica Nucleare), attraverso la piattaforma di Project Life-Cycle Management della Dassault System “3DExperience”. Il documento descrive altresì l’integrazione della piattaforma con gli altri sistemi informativi messi a disposizione dall’INFN ai suoi dipendenti ed associati

Reproducibility and Accuracy of the Radiofrequency Echographic Multi-Spectrometry for Femoral Mineral Density Estimation and Discriminative Power of the Femoral Fragility Score in Patients with Primary and Disuse-Related Osteoporosis

We aimed to investigate the reproducibility and accuracy of Radiofrequency Echographic Multi-Spectrometry (REMS) for femoral BMD estimation and the reproducibility and discriminative power of the REMS-derived femoral fragility score. 175 patients with primary and disuse-related osteoporosis were recruited: one femoral Dual-energy X-ray Absorptiometry (DXA) scan and two femoral REMS scans were acquired. No significant test—retest differences were observed for all REMS-derived variables. The diagnostic concordance between DXA and REMS was 63% (Cohen’s kappa = 0.31) in patients with primary osteoporosis and 13% (Cohen’s kappa: −0.04) in patients with disuse-related osteoporosis. No significant difference was observed between REMS and DXA for either femoral neck BMD (mean difference between REMS and DXA: −0.015 g/cm(2)) or total femur BMD (mean difference: −0.004 g/cm(2)) in patients with primary osteoporosis. Significant differences between the two techniques were observed in patients with disuse-related osteoporosis (femoral neck BMD difference: 0.136 g/cm(2); total femur BMD difference: 0.236 g/cm(2)). Statistically significant differences in the fragility score were obtained between the fractured and non-fractured patients for both populations. In conclusion, REMS showed excellent test-retest reproducibility, but the diagnostic concordance between DXA and REMS was between minimal and poor. Further studies are required to improve the REMS—derived estimation of femoral BMD

Epistolari dal Due al Seicento. Modelli, questioni ecdotiche, edizioni, cantieri aperti (Gargnano del Garda, 29 settembre - 1° ottobre 2014)

Nei secoli passati, la lettera era l'unico mezzo di comunicazione: familiare, amichevole, d'ufficio o di servizio, ma anche strumento di dibattito politico e culturale. Lo studio degli epistolari dei singoli ma anche delle reti di comunicazione e di scambio è uno dei grandi temi della ricerca europea contemporanea. Vi si inserisce questo secondo volume dei "Quaderni di Gargnano", che - volgendosi sia alla produzione latina sia a quella volgare dal Due al Seicento - si sofferma su problemi metodologici e casi significativi, con impostazioni e tagli diversi: dall'ecdotica alla filologia, dall'archivistica, alla storia, alla storia delle discipline

Development of a Nomogram Predicting the Risk of Persistence/Recurrence of Cervical Dysplasia

Background: Cervical dysplasia persistence/recurrence has a great impact on women's health and quality of life. In this study, we investigated whether a prognostic nomogram may improve risk assessment after primary conization. Methods: This is a retrospective multi-institutional study based on charts of consecutive patients undergoing conization between 1 January 2010 and 31 December 2014. A nomogram assessing the importance of different variables was built. A cohort of patients treated between 1 January 2015 and 30 June 2016 was used to validate the nomogram. Results: A total of 2966 patients undergoing primary conization were analyzed. The median (range) patient age was 40 (18-89) years. At 5-year of follow-up, 6% of patients (175/2966) had developed a persistent/recurrent cervical dysplasia. Median (range) recurrence-free survival was 18 (5-52) months. Diagnosis of CIN3, presence of HR-HPV types, positive endocervical margins, HPV persistence, and the omission of HPV vaccination after conization increased significantly and independently of the risk of developing cervical dysplasia persistence/recurrence. A nomogram weighting the impact of all variables was built with a C-Index of 0.809. A dataset of 549 patients was used to validate the nomogram, with a C-index of 0.809. Conclusions: The present nomogram represents a useful tool for counseling women about their risk of persistence/recurrence after primary conization. HPV vaccination after conization is associated with a reduced risk of CIN2+

Additive Manufacturing Design of an Argon Condenser Made with Pure Copper Powder for High-Purity Physics Applications. Technological Issues

Additive Manufacturing (AM) techniques give to designer great freedom as the possibility to rethink the classic geometrical shapes of common objects and it is well suitable for experimental physics research, where components production is based on unique prototype with high specialization and characteristics. In this paper, an AM design process of a heat exchanger for the condensation of argon using liquid nitrogen under cryogenics condition is proposed. The development of the condenser is part of the activities related to the “DarkSide” experiment. The work describes the AM approach considering the re-design of the condenser geometrical shape, the functional and performance constraints together with a focus on the technological issues of the processing of a pure copper powder with Selective Laser Melting (SLM) technology. Unfortunately, it was found that there are still technological issues related to the SLM process of pure copper due to its low-density and its high internal porosity

Chapter Monitoring online perception of environmental issues on coasts of Sicily

The analysis of big data on human experience (reviews, comments, ratings, etc.) can provide valuable insights to companies and institutions. This pioneer study applied the artificial intelligence proprietary tools of The Data Appeal Company for a different aim: monitoring the online perception of environmental issues on 88 beaches of Sicily. Results proved that it is possible to monitor environmental situation even to sites where there are no other kind of monitoring, using as bases the free and available contents posted by humans online, processed and analyzed by artificial intelligenc

On the Accuracy of Wave Pattern Resistance Determination by the Longitudinal Cut Method

In the present work a careful study has been performed on the main error sources in the wave resistance determination by the longitudinal cut method. The experimental data obtained at the Italian Ship Model Basin (wave profiles generated by the steady motion of the Series 60) have been analysed and the relative measurement confidence intervals have been computed. The corresponding confidence interval has been next obtained for the wave resistance coefficient within the range of Froude numbers examined (.225 ? .350), taking into account the error band related to the wave profiles in the application of the longitudinal cut method: the 95% confidence interval shows a rather narrow band and the comparison with the numerical wave resistance as well as with experimental data available in the literature shows a satisfactory agreement. Moreover, the errors related to the truncation of the wave profile, typical of the longitudinal cut method, have been estimated by systematic tests performed by means of a numerical approach, which allows one to compare the wave resistance evaluated by the longitudinal cut method (applied in this case to the computed wave pattern) with the value obtained by pressure integration on the hull. As a result, in a sufficiently wide tank (b > 12m) the longitudinal cut method can be applied without introducing any severe limitation for the model length.In questo lavoro ? stato condotto un accurato studio delle principali fonti d\u27errore nella determinazione della resistenza d\u27onda mediante il metodo del taglio longitudinale. Sono stati analizzati i dati sperimentali ottenuti presso la Vasca Navale di Roma (profili d\u27onda relativi al moto stazionario di un modello della serie 60) e sono stati calcolati gli intervalli di confidenza delle misure effettuate. E\u27 stato poi ottenuto il corrispondente intervallo di confidenza per il coefficiente di resistenza d\u27onda all\u27interno del range dei numeri di Froude testati (.225 ? .350), tenendo conto dell\u27errore relativo al profilo d\u27onda nell\u27applicazione del metodo del taglio d\u27onda longitudinale: l\u27intervallo di confidenza al 95% fornisce una banda piuttosto stretta e i risultati sono in buon accordo con la resistenza d\u27onda calcolata numericamente cos? come con quella fornita dalla letteratura. Inoltre sono stati stimati gli errori relativi al troncamento del profilo d\u27onda, tipici del metodo del taglio longitudinale, per mezzo di test numerici sistematici che hanno permesso di comparare la resistenza d\u27onda calcolata con il metodo del taglio longitudinale (applicato in questo caso ad un profilo d\u27onda fittizio), con quella ottenuta integrando la pressione sullo scafo. I risultati mostrano che in un bacino sufficientemente largo (b > 12 m) il metodo del taglio longitudinale pu? essere applicato senza grosse limitazioni alla lunghezza del modello

Longitudinal Cut Method Revisited: A Survey on the Main Error Sources

Some of the main error sources in wave pattern resistance determination were investigated. The experimental data obtained at the Italian Ship Model Basin (longitudinal wave cuts concerned with the steady motion of the Series 60 model and a hard-chine catamaran) were analyzed. It was found that, within the range of Froude numbers tested (0.225 ≤ Fr ≤ 0.345 for the Series 60 and 0.5 ≤ Fr ≤ 1 for the catamaran) two sources of uncertainty play a significant role: (i) the presence of a wave pattern generated by the air pressure disturbance, related to the carriage motion, and (ii) the unsteadiness of the free-surface flow (precision error). The importance of these effects increases, of course, with the model speed. The propagation of experimental errors in the wave resistance determination by the longitudinal cut method was next examined: within the elaboration of measured wave cuts experimental uncertainties are shown to be significantly damped. The wave resistance coefficient can be obtained therefore, with reasonable accuracy, from the measurement uncertainty point of view. Moreover, the errors related to wave cut truncation, as well as to probe transverse location, typical of the longitudinal cut method, were estimated. Systematic tests were performed by means of a numerical approach, which allows one to compare the wave resistance evaluated by the longitudinal cut method (applied in this case to the computed wave pattern) with the value obtained by pressure integration on the hull. As a result, the longitudinal cut method can be applied without introducing any severe limitation for the ratio b/L (tank width over model length), provided the wave cuts are measured at a proper transverse distance.Sono state studiate alcune delle principali fonti d\u27errore nella determinazione della resistenza d\u27onda. Sono stati analizzati i dati sperimentali ottenuti presso la Vasca Navale di Roma (tagli longitudinali delle onde relative al moto stazionario di un modello della serie 60 e di un catamarano hard-chine). E\u27 stato riscontrato che, all\u27interno del range dei numeri di Froude testati (0.225 ≤ Fr ≤ 0.345 per la Serie 60 e 0.5 ≤ Fr ≤ 1 per il catamarano), due sorgenti di errore sono maggiormente significative: (i) la presenza di un treno d\u27onda generato dalla variazione della pressione dell\u27aria causata dal passaggio del carro dinamometrico, e (ii) l\u27instabilit? del flusso sulla superficie libera (errore di precisione). L\u27importanza di questi fenomeni cresce, naturalmente, al crescere della velocit? del modello. E\u27 stata poi esaminata la propagazione degli errori sperimentali nella determinazione della resistenza d\u27onda mediante il metodo del taglio longitudinale: all\u27interno delle elaborazioni dei tagli d\u27onda misurati le incertezze sperimentali sono significativamente smorzate. Dal punto di vista dell\u27incertezza di misura, il coefficiente di resistenza d\u27onda pu? essere quindi ottenuto con ragionevole accuratezza. Inoltre sono stati valutati gli errori tipici del metodo del taglio longitudinale: quelli relativi al troncamento e quelli dovuti al posizionamento della sonda. Sono stati eseguiti in modo sistematico dei test con un metodo numerico che ha permesso di comparare la resistenza d\u27onda calcolata con il metodo del taglio longitudinale (applicato ad un profilo d\u27onda fittizio), con quella ottenuta integrando la pressione sullo scafo. I risultati mostrano che il metodo del taglio longitudinale pu? essere applicato senza grosse limitazioni in merito al rapporto b/L (larghezza del bacino di prova sulla lunghezza del modello), purch? i tagli longitudinali siano misurati ad un opportuna distanza trasversale dallo scafo

Some Remarks on the Accuracy of Wave Resistance Determination From Wave Measurements along a Parallel Cut

In the present work some of the main error sources in the wave pattern resistance determination were investigated. The experimental data obtained at the Italian Ship Model Basin (longitudinal wave profiles generated by the steady motion of the Series 60 model and a hard chine Catamaran) were analyzed. It was found that, within the range of Froude numbers tested (.225 ? Fr ? .345 for the Series 60 and .5 ? Fr ? 1 for the Catamaran) two sources of uncertainty play a significant role: (i) the presence of a wave pattern generated by the air pressure disturbance, related to the carriage motion, and (ii) the unsteadiness of the free-surface flow (precision error). The propagation of experimental errors in the wave resistance determination by the longitudinal cut method was next examined: the wave resistance coefficient shows a reasonable error band and the comparison with numerical results as well as with experimental data available in the literature shows a satisfactory agreement. Moreover, the errors related to the truncation of the wave profile, as well as to the transverse location of the probe, typical of the longitudinal cut method, were estimated. Systematic tests were performed by means of a numerical approach, which allows one to compare the wave resistance evaluated by the longitudinal cut method (applied in this case to the computed wave profiles) with the value obtained by pressure integration on the hull. As a result, in a sufficiently wide tank (b ? 12m) the longitudinal cut method can be applied without introducing any severe limitation for the model length, provided the wave profiles are measured at a proper transverse distance.In questo lavoro sono state analizzate alcune delle principali fonti d\u27errore nella determinazione della resistenza d\u27onda. Sono stati analizzati i dati sperimentali ottenuti presso la Vasca Navale di Roma (tagli longitudinali delle onde relative al moto stazionario di un modello della serie 60 e di un catamarano hard-chine). E\u27 stato riscontrato che, all\u27interno del range dei numeri di Froude testati (.225 ? Fr ? .345 per la Serie 60 e .5 ? Fr ? 1 per il Catamarano), due sorgenti di errore sono maggiormente significative: (i) la presenza di un treno d\u27onda generato dalla variazione della pressione dell\u27aria causata dal passaggio del carro dinamometrico, e (ii) l\u27instabilit? del flusso sulla superficie libera (errore di precisione). E\u27 stata poi esaminata la propagazione degli errori sperimentali nella determinazione della resistenza d\u27onda mediante il metodo del taglio longitudinale: il coefficiente di resistenza d\u27onda ha una ragionevole banda d\u27errore, ed ? peraltro soddisfacente l\u27accordo con i risultati numerici ed i dati presenti in letteratura. Inoltre sono stati valutati gli errori tipici del metodo del taglio longitudinale: quelli relativi al troncamento e quelli dovuti al posizionamento della sonda. Sono stati eseguiti in modo sistematico dei test con un metodo numerico che ha permesso di comparare la resistenza d\u27onda calcolata con il metodo del taglio longitudinale (applicato ad un profilo d\u27onda fittizio), con quella ottenuta integrando la pressione sullo scafo. I risultati mostrano che in un bacino sufficientemente largo (b ? 12m) il metodo del taglio longitudinale pu? essere applicato senza grosse limitazioni alla lunghezza del modello, purch? i tagli longitudinali siano misurati ad un opportuna distanza trasversale dallo scafo