101,862 research outputs found
Problems Connected with Protection of Monuments from Aggressive Agents
No full textEmphasis is given to the importance of the conservation of the exterior surfaces of great architectures as palaces, castles, bridges, etc., and monuments, triumph arches, statues, sculptures and, in general, masterpieces of marmor, stone and related materials located outdoors. Protection problems in this field are important in Italy, where a great number of these treasures are often in heavily-polluted environments, and, consequently, undergo a continuous destructive action.
The problem of the protection of marmor surfaces can be tackled according to various approaches. Among these the treatment with organic coatings of both the film forming and the sealer type is particularly interesting.
Objective of this work is to make a contribution to the methodology of characterization of the above mentioned protective materials. So, the most suitable protective product and application procedure, in dependence on the material to be protected and the nature of the aggressive agents, can be more easily identified.
In particular, the investigations are aimed at highlighting the behaviour of the protective coating towards: 1) some gases and vapours, through the determination of their solubility in the coating. 2) rain and salt water, through the determination of the weight and the isothermal desoprtion of the water penetrated into the coating and through this into the body of the object exposed to humid atmosphere or immersed in water
Bibliographie Hilarion G. Petzold 1958 – 2009 mit Anhang als Einführung
No full textDieses Archiv enthält die Gesamtbibliographie der Werke des Autors nebst einiger Texte „Über H. G. Petzold“ im Schlussteil der Bibliographie sowie einen Anhang mit einer Einführung in die Architektur des Werkes in seinem wissenslogischen Aufbau als Ausarbeitung seines „Tree of Science Modells“ (2007).This archive contains the complete bibliography of the author and some texts about H. G. Petzold, moreover an epilogue with an introduction to the architecture of the works in its epistemological structure and composition and as an elaborations of Petzold’s „Tree of Science Modell (2007).https://www.fpi-publikation.de/polyloge/01-2009-petzold-h-g-gesamtbibliographie-h-g-petzold-1958-2009-updating-november2009/peerReviewedpublishedVersio
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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