QGIS and Epigraphy: In Situ and Extra Situm Inscriptions

The use of georeferenced relational databases for the localisation of epigraphic findings is widely attested with important examples. However, in order to propose an increasingly accurate representation of information related to inscriptions, some methodological issues need to be highlighted and, if possible, solved. This paper will address the problem of the place of discovery of the inscription, which could be in situ or extra situm

I duoviri designati nell’amministrazione locale tra Spagna ed Italia

In the epigraphic documentation concerning municipia and Roman colonies there are several attestations of magistrates defined as designati. This contribution will focus on the analysis of inscriptions, found in the Iberian peninsula and in Roman Italy, concerning duoviri designati. The particularity of these testimonies is given not only by the reference to the duovirate but also to evergetic donations or dedications, which took place in a presumably extremely short period of time.In the epigraphic documentation concerning municipia and Roman colonies there are several attestations of magistrates defined as designati. This contribution will focus on the analysis of inscriptions, found in the Iberian peninsula and in Roman Italy, concerning duoviri designati. The particularity of these testimonies is given not only by the reference to the duovirate but also to evergetic donations or dedications, which took place in a presumably extremely short period of time. Nella documentazione epigrafica concernente le colonie di cittadinanza romana ed i municipi si contano diverse attestazioni di magistrati definiti come designati. Questo contributo si concentrerà sull’analisi della documentazione epigrafica, rinvenuta nella penisola iberica e nel territorio italico, legata ad una problematica relativa ai cosiddetti duoviri designati. La particolarità di queste testimonianze è data non solo dalla citazione di questa formula nell’elencazione delle cariche rivestite dal cittadino, ma anche dalla presenza riferimenti ad atti, quali donazioni evergetiche o dediche, che ebbero luogo in un arco di tempo presumibilmente estremamente breve. &nbsp

Marble Wall Decorations from the Imperial Mausoleum (4th C.) and the Basilica of San Lorenzo (5th C.) in Milan: an Update on Colored Marbles in Late Antique Milan

The unpublished remains of marble crustae from late Antique Milan are here presented. They covered the walls of two buildings of imperial commission in Milan: the Imperial Mausoleum and the Basilica of San Lorenzo (4th–5th C. AD). The comparison between the two buildings allows the formulation of hypotheses on the supply, reuse and use of this type of decoration for two buildings that were designed less than one century apart, but in two definitely different political contexts

Marble wall decorations from the Imperial Mausoleum (4th c.) and the Basilica of San Lorenzo (5th c.) in Milan: an update on coloured marbles in Late Antique Milan

peer reviewe

Combustión catalítica de hidrocarburos en catalizadores de cobalto soportado sobre Al<SUB>2</SUB>O<SUB>3</SUB>-ZrO<SUB>2</SUB>

Las reacciones de combustión de propano, propeno y naftaleno fueron estudiadas en presencia de catalizadores conteniendo distintos contenidos de cobalto sobre los soportes de alúmina y alúmina zirconia. Los catalizadores fueron caracterizados por BET, DRX, SEM-EDAX, TPR y Espectroscopia Raman. Las mediciones de actividad catalítica fueron realizadas en un micro reactor de lecho fijo. Todos los catalizadores conteniendo especies de cobalto (Co3O4) exhiben buena actividad para la reacción de combustión de propano. La actividad catalítica depende del contenido de metal, los catalizadores con mayor contenido de cobalto (10 y 15% p/p) son los más activos y sus partículas de Co3O4 son más fáciles de reducir. Los catalizadores soportados sobre la alúmina modificada presentan la más alta actividad. Además, la presencia de NO incrementa ligeramente la actividad de los catalizadores Co(m)AlZ, lo cual es un hecho muy importante debido a que este contaminante está presente en emisiones gaseosas. Además, se muestra que estas formulaciones son muy activas para la combustión de propeno y naftaleno.Propane, propene and naphthalene combustion reactions were studied in presence of catalysts containing cobalt species both on Alumina-Zirconia (AlZ) and Alumina (Al) supports. Catalysts were characterized by BET, XRD, SEM-EDAX, TPR and Raman spectroscopy. Measurements of catalytic activity were performed in fixed bed micro-reactors. All catalysts containing cobalt species (Co3O4) exhibit a good activity for propane combustion reaction. The catalytic activity depends on the metal loading, the catalysts with higher cobalt loading (10 and 15 wt.%) and easily reducible Co3O4 particles being the most active. The catalysts supported on the modified alumina present highest activity. In addition, the presence of NO increases slightly the activity of the Co(m)AlZ catalysts, which is a very important fact because this contaminant is present in gaseous emissions. In addition, it is shown that these formulations are very active for the combustion of propene and naphthalene.Trabajo publicado en Álvarez, María E., Sandra G. Casuscelli, Mónica E. Crivello y Griselda A. Eimer (eds.). Actas del XX Congreso Argentino de Catálisis. Universidad Tecnológica Nacional, Facultad Regional Córdoba, Buenos Aires, 2017.Facultad de Ciencias Exacta

Combustión catalítica de hidrocarburos en catalizadores de cobalto soportado sobre Al<SUB>2</SUB>O<SUB>3</SUB>-ZrO<SUB>2</SUB>

Las reacciones de combustión de propano, propeno y naftaleno fueron estudiadas en presencia de catalizadores conteniendo distintos contenidos de cobalto sobre los soportes de alúmina y alúmina zirconia. Los catalizadores fueron caracterizados por BET, DRX, SEM-EDAX, TPR y Espectroscopia Raman. Las mediciones de actividad catalítica fueron realizadas en un micro reactor de lecho fijo. Todos los catalizadores conteniendo especies de cobalto (Co3O4) exhiben buena actividad para la reacción de combustión de propano. La actividad catalítica depende del contenido de metal, los catalizadores con mayor contenido de cobalto (10 y 15% p/p) son los más activos y sus partículas de Co3O4 son más fáciles de reducir. Los catalizadores soportados sobre la alúmina modificada presentan la más alta actividad. Además, la presencia de NO incrementa ligeramente la actividad de los catalizadores Co(m)AlZ, lo cual es un hecho muy importante debido a que este contaminante está presente en emisiones gaseosas. Además, se muestra que estas formulaciones son muy activas para la combustión de propeno y naftaleno.Propane, propene and naphthalene combustion reactions were studied in presence of catalysts containing cobalt species both on Alumina-Zirconia (AlZ) and Alumina (Al) supports. Catalysts were characterized by BET, XRD, SEM-EDAX, TPR and Raman spectroscopy. Measurements of catalytic activity were performed in fixed bed micro-reactors. All catalysts containing cobalt species (Co3O4) exhibit a good activity for propane combustion reaction. The catalytic activity depends on the metal loading, the catalysts with higher cobalt loading (10 and 15 wt.%) and easily reducible Co3O4 particles being the most active. The catalysts supported on the modified alumina present highest activity. In addition, the presence of NO increases slightly the activity of the Co(m)AlZ catalysts, which is a very important fact because this contaminant is present in gaseous emissions. In addition, it is shown that these formulations are very active for the combustion of propene and naphthalene.Trabajo publicado en Álvarez, María E., Sandra G. Casuscelli, Mónica E. Crivello y Griselda A. Eimer (eds.). Actas del XX Congreso Argentino de Catálisis. Universidad Tecnológica Nacional, Facultad Regional Córdoba, Buenos Aires, 2017.Facultad de Ciencias Exacta

Promoting effect of rhodium on Co/ZnAl2O4 catalysts for the catalytic combustion of hydrocarbons

Zinc aluminate (ZnAl) was used as support to obtain a series of rhodium-modified Co-ZnAl catalysts for the catalytic oxidation of propane and naphthalene. The catalysts were characterized by various techniques including N2 adsorption (BET), X-ray diffraction (XRD), temperature programmed reduction (TPR), diffuse reflectance spectroscopy (DRS), FTIR and X-ray photoelectron spectroscopy (XPS), to correlate chemical and physical characteristics with catalytic properties. TPR and XPS techniques show the presence of segregated cobalt compounds, as well as cobalt species interacting with the support. Segregated cobalt species are considered responsible for the catalytic activity, due to their high reducibility. The addition of Rh promotes the reducibility of the cobalt compounds yielding to an increase in the surface content of Co2+. For propane oxidation, the best activity shown by the Rh(0.5)Co(5)-ZnAl sample could be associated with a synergic effect between rhodium and cobalt species. No specific effects were revealed due to the addition rhodium for the naphthalene oxidation.Fil: Leguizamón Aparicio, María Silvia del Valle. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Ocsachoque, Marco Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Rodríguez Castellón, Enrique. Universidad de Málaga. Facultad de Ciencias; EspañaFil: Gazzoli, Delia. Università degli Studi di Roma "La Sapienza"; ItaliaFil: Casella, Mónica Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Lick, Ileana Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentin