1,750 research outputs found
"La materia quando inizia a soffrire": Denial Figures in Guido Morselli's Work
No full textopenIl presente lavoro si propone di indagare la questione della crisi del soggetto così come discussa dall'autore italiano Guido Morselli, nelle diverse sedi dei romanzi, della produzione saggistica e del diario personale. Da qui si analizzeranno temi quali il solipsismo e gli interrogativi esistenziali, fin dai loro primi riverberi nella filosofia centro-europea di fine Ottocento, inizio Novecento.The present work aims yo investigate the issue of the crisis of the subject, as it is discussed by the Italian author Guido Morselli, on his novels, essays and personal diary. We will also analyze topics such as solipsism and existential questions from their first reverberations on the late eighteen century and early nineteen century middle European philosophy
Selection of the probabilistic model of extreme floods: the case of the River Tiber in Rome
No full textThe probability distribution of the annual maximum peak flows on the River Tiber at the town of Rome
(Ripetta) can be evaluated using the information available since the XV century. In this paper the probability
distribution of two series of annual peak flows maxima observed at the Ripetta gauge is analysed:
the systematic series, including all the data observed since the beginning of the systematic stage record in
1782, and the censored series of the exceptional floods that inundated the town of Rome, starting from
the XV century. In order to find a criterion for choosing the ‘‘optimum” distribution law for the high
return period quantiles, an index that takes into account both the accuracy and the uncertainty of the
quantiles estimation is proposed
Efficacia di un sistema di casse di espansione per la difesa idraulica della città di Roma
No full textSample Quantile Criterion (SQC): un criterio per la selezione dei modelli probabilistici
No full textDistribution of the extreme peak floods of the Tiber River from the XV century
No full textThe peak stages of the extreme floods inundating the town of Rome are known since the XV century. This record covering more
than 500 years can be considered as a censored sample of the population of the peak flood stages at the site. To evaluate the peak
flow of the observed events the following information is available: (a) a long record of daily stage measurements up to the XVIII
century; (b) several records of daily rainfall depth measurement at two rain gauges in the Tiber catchment, extending at least up to
the middle of the XIX century; (c) detailed surveys executed immediately after the great flood of 1870, including the elevation plan of
the town, a survey of the riverbed and the flood hydrograph of the 1870 flood; (d) a less detailed survey of the riverbed executed in
1744; (e) a rich iconography, showing the conditions of the Tiber banks from the XVI century onward; (f) contemporary descriptions
of several extreme floodings; and (g) a rich series of flow measurements and bed surveys after the great flood of 1870 to present
days. A two-dimensional hydrodynamic model was used to simulate the flooding of the old town in order to determine the flow–
discharge relationship, thus allowing reconstruction of a record of the past extreme floods. A statistical analysis was developed for
evaluating the risk hazard, using the censored sample of all the extreme floods from the XV century and the sample of all the maximum
annual floods from the end of the XVIII century
Analisi statistica di una lunga serie di massimi colmi annuali
No full textLa valutazione della distribuzione di probabilità delle massime portate annuali sul Fiume Tevere a Roma può essere effettuata utilizzando un’informazione idrometrica che risale fino al XV secolo. In questa nota vengono analizzate le distribuzioni di tre campioni dei massimi colmi annuali osservati a Roma (Ripetta): il campione moderno, costituito dai valori osservati dall’inizio delle misure sistematiche di portata nel 1921, il campione completo, costituito dai valori osservati dall’inizio delle misure sistematiche d’altezza idrometrica nel 1782, e il campione tronco dei colmi delle piene eccezionali che a partire dal XV secolo hanno inondato la città di Roma. Vengono messe a confronto le distribuzioni di probabilità stimate sul campione completo e su campioni troncati in base a due diversi criteri. Si presenta, quindi, il problema della scelta del modello probabilistico da adottare per la stima dei quantili caratterizzati da elevato tempo di ritorno. A questo scopo si propone l’impiego di un indice che tiene conto insieme dell’accuratezza e dell’incertezza di stima dei quantili
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