Search results for "structural analysi"
showing 8 items of 38 documents
Nuovi dati sulla catacomba di Sabratha (Libia)
2016
La ricerca è stata condotta in collaborazione con Giuseppina Cipriano per la parte archeologica e Francesco Scirè per il rilievo topografico e diretto, nell’ambito del Progetto PRIN 2008 dal titolo: Pagani e cristiani a Sabratha e Leptis Magna tra III e VI secolo d.C. Monumenti e reperti, tradizione e immagini, coordinato da Rosa Maria Carra.La catacomba di Sabratha è uno dei pochi esempi di cimitero comunitario cristiano finora noti nell’Africa Romana. L’ingresso, lungo il tracciato del decumano minore proveniente dal complesso episcopale della Regio III, si trova a pochi metri dall’attuale linea di costa, a metà strada fra il grande santuario suburbano di Iside e l’Anfiteatro e nei pressi…
Le discours du mythe
2008
Limité à ce tournant encore peu exploré des études ethnologiques qui chevauche les années 1960, cet article explore quelques aspects de la transition de Lucien Sebag de sa formation philosophique à la théorie ethnologique, transition dont les piliers les plus importants sont l’apprentissage auprès de Claude Lévi-Strauss et ses enquêtes de terrain chez les Aché-Guayaki de la zone orientale du Paraguay et chez les Ayoré-Moros du Chaco paraguayen et bolivien. L’article met particulièrement en lumière la contribution de Sebag à l’analyse structurale des mythes et, par le dépassement de l’approche marxiste et de la démarche psychanalytique, les nouvelles perspectives qu’en accord avec la linguis…
Synthesis and structural studies on Ni(II) dithiocarbamates : Exploring intramolecular Ni···H-C interactions
2017
Abstract Five new Ni(II) dithiocarbamates with NiS4, NiS2PN and NiS2PCl coordination spheres, viz. [Ni(bupmbzdtc)2] (1), [Ni(bupmbzdtc)(PPh3)(NCS)] (2), [Ni(bupmbzdtc)(PPh3)Cl] (3), [Ni(4-dpmpzdtc)(PPh3)Cl] (4) and [Ni(pbbzbudtc)(PPh3)(NCS)] (5), where bupmbzdtc = N-butyl(p-methylbenzyl)dithiocarbamato anion, 4-dpmpzdtc = 4-(diphenylmethyl)piperazinecarbodithioato anion, pbbzbudtc = N-(p-bromobenzyl)butyl-dithiocarbamato anion and PPh3 = triphenylphosphine, were synthesized and characterized by UV, IR, NMR and single crystal X-ray diffraction methods. Spectral results suggest a square planar geometry around the Ni(II) metal center for all the synthesized complexes. Single crystal X-ray stru…
Synthesis and structural studies on Ni(II) dithiocarbamates : Exploring intramolecular Ni···H-C interactions
2017
Five new Ni(II) dithiocarbamates with NiS4, NiS2PN and NiS2PCl coordination spheres, viz. [Ni(bupmbzdtc)2] (1), [Ni(bupmbzdtc)(PPh3)(NCS)] (2), [Ni(bupmbzdtc)(PPh3)Cl] (3), [Ni(4-dpmpzdtc)(PPh3)Cl] (4) and [Ni(pbbzbudtc)(PPh3)(NCS)] (5), where bupmbzdtc = N-butyl(p-methylbenzyl)dithiocarbamato anion, 4-dpmpzdtc = 4-(diphenylmethyl)piperazinecarbodithioato anion, pbbzbudtc = N-(p-bromobenzyl)butyl-dithiocarbamato anion and PPh3 = triphenylphosphine, were synthesized and characterized by UV, IR, NMR and single crystal X-ray diffraction methods. Spectral results suggest a square planar geometry around the Ni(II) metal center for all the synthesized complexes. Single crystal X-ray structural an…
Modelli interoperabili per Cultural Heritage Recording. Le cupole a torrini di Sicilia e Castiglia.
La ricerca indaga l’origine e l’evoluzione di uno specifico modello di cupola su tamburo a pianta circolare o poligonale, con contrafforti cilindrici sull’asse dei piloni della crociera. Sei casi studio in Spagna e in Sicilia sono stati studiati attraverso il riesame delle fonti storiche e sono state analizzate le matrici geometriche sottese al progetto; i casi studio ancora esistenti sono stati rilevati con metodi laser scanning e fotogrammetrici. I modelli tridimensionali sono stati utilizzati per una verifica del contributo statico offerto dai torrini alla stabilità delle strutture. The research work is focused on the origin and the modifications of a peculiar dome on tambour having a ci…
Structural analysis, phase stability and electrochemical characterization of Nb doped BaCe0.9Y0.1O3−x electrolyte for IT-SOFCs
2012
Abstract To improve the chemical stability of high temperature proton conductors based on barium cerate, electrolyte powders doped with different amounts of niobium were synthesized by the citrate–nitrate auto-combustion method. Pure single phases of BaCe 0.9− x Nb x Y 0.1 O 3− x (BCYN, 0.03 ≤ x ≤ 0.12) were obtained by thermal treatment at 1000 °C. Sintering at 1450 °C for 10 h produced dense pellets. X-ray absorption spectroscopy allowed to define the dopant ion insertion site and the co-dopant valency. Treatments in pure CO 2 atmosphere at 700 °C for 3 h and subsequent XRD analysis were carried out to probe the chemical stability of the produced electrolytes. The influence of the prese…
Gastromania on italian tv
2021
By turning on the TV, at any time of the day or night, one can comeacross programs in which food is the undisputed protagonist. Actually, thepresence of food on TV is not a contemporary phenomenon, but it goesback to the origins of television. Over time, the way of narrating food hasbeen transformed, as well as the role attributed to it and the values (gastronomicand social) associated to it.In this paper, after having traced a historical overview of Italian foodtelevision programming, we focus on the analysis of four recent programs.The objective is to understand how settings, rhythmic and temporal scansion,and the distribution of roles among the various actors involved configurenarratives…
Fe and Zn co-substituted beta-tricalcium phosphate (β-TCP): Synthesis, structural, magnetic, mechanical and biological properties
2020
This work was supported by the European Social Fund under the No. 09.3.3- LMT-K-712 “Development of Competences of Scientists, other Researchers and Students through Practical Research Activities” measure. AK would like to express sincere gratitude for Fellowship administrated by The Japan Society for the Promotion of Science (JSPS). Fellow’s ID No.: L12546. Authors are grateful to R. Vargalis (Vilnius University) for taking SEM images. © 2020. This work is licensed under a CC BY-NC-ND license.