6,542 research outputs found
Computational fluid dynamics in Europe, a personal view M. Napolitano
No full textThis review paper describes some major contributions provided by European scientists to the development of CFD from the early 70s to the end of the 20th century. Particular attention has been paid to those authors who have contributed to the success of the ICNMFD, started in 1969 (Novosibirsk) from a joint effort of scientists involved in the space race in the USA and the USSR, and of the ISCFD, started in 1995 (Tokyo) as a Pacific competitor to the ICNMFD. These two very important biennial international conferences have then merged into the ICCFD, starting from the year 2000, thanks to the efforts of the two scientific committees, promoted by prof. Oshima and the author. The majority of the authors whose work is the subject of this paper have been members of one or more of the Scientific Committees of the three aforementioned conferences, usually after having been selected to provide invited lectures to the same. Their choice is the sole responsibility of the author and is certainly incomplete and biased towards more applied, rather than theoretical CFD. Also, they are often personal friends of the author who has been a member of the CFD community for 40 years. Thus, this paper does not consider younger scientists, independently of the value of their contributions. Moreover, it is noteworthy that European CFD has always been strictly interconnected with US CFD. Some of the authors have started their careers in Europe and are now living and working in the USA (e.g., Glowinski, Roe, Van Leer); others have obtained their Ph.D. in the USA (e. g., Launder, Napolitano), and all of them have worked together with US scientists, so that it is difficult to distinguish between European and US CFD. For those who moved to the USA, their contributions prior to their move have been favored. Last but not least, each of the authors discussed in this work has been asked-by an e-mail that I hope reached them-to write a draft of his own chapter so as to provide the most authoritative review of his contributions. Those who have done so have been duly acknowledged. The other ones will have to forgive the author for an inadequate description of their merits
Citazione in "L'architettura italiana : creatività e fantasia esportate nel mondo"
No full textCitazione nel testo che raccoglie l'analisi delle eccellenze italiane negli ambiti artistici e creativi. La presentazione è di Giorgio Napolitano
Exploring Representation Theory of Unitary Groups via Linear Optical Passive Devices
No full textIn this paper, we investigate some mathematical structures underlying the physics of linear optical passive (LOP) devices. We show, in particular, that with the class of LOP
transformations on N optical modes one can associate a unitary representation of U(N) in the N-mode Fock space, representation which can be decomposed into irreducible sub-representations living in the subspaces characterized by a fixed number of photons. These (sub-)representations
can be classified using the theory of representations of semi-simple Lie algebras. The remarkable case where N = 3 is studied in detail
Introduzione. Perché e come senza corona
No full textSi tratta dell'Introduzione (insieme con C. Chiurco) al volume collettaneo e interdisciplinare "Senza corona: A più voci sulla pandemia": si giustifica il titolo (la necessità che, per affrontare in modo adeguato il Coronavirus, sia necessario togliersi dal capo la 'corona' della volontà senza limiti di produzione-consumo-godimento. E si mostra come solo un dialogo interdisciplinare, approfondito e sereno, come quello tentato nel libro da professionisti diversi (3 filosofi morali, una storica della filosofia, un infermiere, uno psichiatra, un neurologo) possa individuare i molteplici problemi che la pandemia ha messo in luce e aggravato, non limitandosi, come molti hanno fatto, semplicemente a denunciarli, ma anche indicando, per quanto possibile, soluzioni innovative per affrontarli e riuscire a convivere con essi
Il virus delle solitudini
No full textIl saggio, riprendendo anche contenuti letterari (Rilke, Camus) e filosofici (Arendt, Platone), riflette sulla 'separazione' e la conseguente solitudine da tutti vissuta durante il lockdown per il Covid. In realtà la pandemia ha imposto una modalità dell'essere soli (come isolati e separati), tanto difficile perché vissuto dall'unica prospettiva solipsistico-autoreferenziale dell'individualismo impostoci dal sistema produrre-consumare-godere. La pandemia lo ha completamente scardinato, imponendoci una separazione nuova, la sola possibile per essere davvero 'insieme', e la necessità di riflettere anche sulla nostra fragilità e mortalità: cosa possibile solo teorizzando e rivendicando (finalmente e perfino come un diritto) una solitudine nuova, rasserenante perché realistica (rispetto ai limiti oggettivi del nostro stesso vivere) e perché capace di 'ri-connetterci' davvero e profondamente con tutti gli altri esseri umani
Effect of information about organic production on beef liking and consumer willingness to pay
No full textThe present study was aimed to assess the effect of information about organic production on beef liking and consumer willingness to pay. Mean scores of perceived liking were higher for organic beef (OB) as
compared to conventional beef (CB). Expected liking scores were higher for OB than for CB. For OB the expected liking was significantly higher than the perceived liking expressed in blind conditions (negative disconfirmation), whereas for CB no difference was observed. Consumers completely assimilated their liking for OB in the direction of expectations. Consumers showed a willingness to pay for OB higher than the suggested price (P < 0.001), the latter corresponding to the local commercial value for organic beef.
We conclude that the information about organic farming can be a major determinant of beef liking, thus providing a potential tool for meat differentiation to traditional farms
Another Brick in the Wall. A Critical Discourse Analysis of the Political Discourse of Division
No full textConclusioni
No full textIl capitolo analizza in modo comparativo e critico le diverse modalità di targettizzazione del mercato "etnico" in Italia.
Si propone una lettura del mercato come laboratorio delle identità possibili, che pareggia la nota lettura del consumo come rappresentazione teatrale
Il 'Vocabolario ornitologico napolitano-italiano' (1874) e il 'Vocabolario botanico napolitano' (1887) di Federico Gusumpaur
No full textThe paper analyses two bilingual (Neapolitan-Italian) sectoral repertoires by Federico Gusumpaur: the Vocabolario ornitologico napolitano-italiano (1874) and the Vocabolario botanico napolitano (1887). After some remarks on the author, whose basic biographical data are unknown, I will describe the main characteristics of the two repertoires: the criteria used, the glossing system, the probable sources, and the destination. I will also focus on the differences between the two vocabularies, which consist in the presence of two alphabetical indices (Latin-Neapolitan and Italian-Neapolitan) in the Vocabolario botanico napolitano and the non-merely local destination of this second repertoire.Il contributo si concentra su due repertori settoriali bilingui (napoletano-italiano) redatti da Federico Gusumpaur: il Vocabolario ornitologico napolitano-italiano (1874) e il Vocabolario botanico napolitano (1887). Dopo alcuni cenni sull’autore, del quale non sono noti i dati biografici fondamentali, si presentano le caratteristiche principali dei due repertori: i criteri adottati, il sistema di glossatura, le probabili fonti, la destinazione. Si mettono inoltre a fuoco le differenze tra i due vocabolari, che consistono nella presenza di due indici alfabetici (latino-napoletano e italiano-napoletano) nel Vocabolario botanico napolitano e nella destinazione non solo locale di questo secondo repertorio
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