123,403 research outputs found
N. N. Gloubokovskii, Pamiati pokoïnago professora Alexéia Petrovitcha Lebedeva (À la mémoire du professeur défunt Alexis Petrovitch Lébédev).
No full textJugie Martin. N. N. Gloubokovskii, Pamiati pokoïnago professora Alexéia Petrovitcha Lebedeva (À la mémoire du professeur défunt Alexis Petrovitch Lébédev).. In: Échos d'Orient, tome 12, n°77, 1909. pp. 252-253
BASIC TERMS OF MARKETING
No full textTkachenko, L. L. Basic terms of marketing / L. L.Tkachenko, N. Lebedeva // Proceedings of the 1st International Scientific Conference EUROPEAN CONFERENCE OF MANAGEMENT AND ECONOMICS. Ljubljana May 24, 2019. - Р. 318-321
La-Ag-Co perovskites for the catalytic flameless combustion of methane
No full textAg represents an interesting dopant for the highly active LaCoO3 perovskites used for the catalytic flameless combustion (CFC) of methane, due to its ability to adsorb and activate oxygen and to the possibility of incorporation into the framework as Ag+ or Ag2+, with formation of oxygen vacancies. In the present work we compared the catalytic activity and resistance to sulphur poisoning of a series of LaCoO3, x%Ag/LaCoO3, La1-xAgxCoO3 samples (nominal composition), the latter two notations indicating post-synthesis Ag loading or direct incorporation during the synthesis, respectively. The samples were prepared by flame pyrolysis (FP) and by the sot-gel (SG) method, leading to different particle size and possibly to different incorporation degree of the dopant, quantified by Rietveld refinement of XRD patterns.
Higher activity was observed, in general, with fresh catalysts synthesised by FP. The SG samples demonstrated a slightly better resistance to sulphur poisoning when considering the conversion decrease between the fresh and the poisoned samples, due to lower surface exposure. However, interesting data have been obtained with some of the Ag-doped poisoned FP samples, performing even better than the fresh SG-prepared ones.
Ag addition led to a complex change of activity and resistance to poisoning. The activity of FP-prepared samples doped with a small amount of Ag (e.g. 5 mol%) was indeed lower than that of the undoped LaCoO3. By contrast, a further increase of Ag concentration led to increasing catalytic activity, mainly when big extra framework Ag particles were present. By contrast, for SG samples a low Ag amount was beneficial for activity, due to an increased reducibility of Co3+
Mnogojazychnye razgovorniki dlja puteshestvennikov kak osobyj zhanr massovoj literatury XIX v.: situativno-stilisticheskie èlementy v tvorchestve Gogolja
No full textAnalisi di alcuni aspetti della poetica di Gogol' , alla luce di alcuni testi autografi pubblicati dall'autrice e riguardanti esercitazioni gogoliane a imitazione di manuali poliglotti per i viaggiatori
Rol' Italii v avtobiografii N. Berberovoj
No full textRaccontare la propria esistenza implica la necessità di tradurre il tempo in tempo umano attraverso una narrazione. Ciò è reso possibile dal legame profondo tra vita e racconto individuato da Ricoeur nell’ identità di nozioni quali progetto fine mezzo e circostanze su cui si fonda sia la semantica dell’azione, motore dell’esistenza umana, sia la costruzione del racconto. La configurazione trasforma la successione degli avvenimenti, filtrati dall’esperienza soggettiva di essi, in una totalità significante e articola l’esperienza in forme simboliche. Tale procedimento nell’autobiografia di Berberova si concretizza nelle diverse simbologie che l’autrice trae da una rilettura dei ricordi alla luce della memoria che ne ha nel presente. Esse confluiscono in un’ immagine-simbolo della tradizione pittorica rinascimentale italiana: Tobia e l’Angelo, immagine-simbolo attraverso cui è possibile risalire al significato che Berberova attribuisce all’Italia nell’interpretazione della propria vit
“Poslednij den’ Pompei”: apokalipsis ot Brjullova i ego literaturnye otzvuki
No full textIn this essay the author shows the influence of Briullov's painting "The last days of Pompeii" on Russian literature from Baratinsky to Solzhenitsyn
A Multi-Language Comparison of Influences on Author Verification using Character N-Grams
No full textWe create a new multi-language corpus for author verification based on Wikipedia talkpages, and evaluate the influence that differences in topic and time have on character n-gram author profiles. Topic alignment between two texts is found to increase author verification precision, and an authors writing style is found to change over time, but not more significantly after 3 years than after 1 year.Information ArchitectureWISElectrical Engineering, Mathematics and Computer Scienc
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