1,720,965 research outputs found
Regionalisation of rainfall data through the use of cluster and factor analysis techniques
No full textStudio teorico e sperimentale di alcuni aspetti dei fenomeni di ripascimento e erosione nei corsi d'acqua naturali
No full textCanaletta per lo studio della meccanica di alcuni fenomeni fluviali, l'esperienza del Laboratorio di Idraulica del Politecnico di Torino
No full textPubblicazione interna n. 01-1994 del DITIC, Politecnico di Torin
Evento alluvionale del novembre 1994 nel bacino del Tanaro : dinamica dell' esondazione del torrente Borbore nel comune di Asti
No full textFailure analysis of an old oil pipeline
No full textFollowing the collapse of a section of a steel oil pipeline during its return to service after maintenance work, an analysis was made of the section itself and its fracture site. Chemical examination showed that the steel was too sensitive to brittle fracture and not suitable for this application. Investigation of the crack showed that the collapse was caused by a pressure surge which resulted in a brittle fracture at an already defective point. The question of the environmental safety of this pipeline and whether it could be improved is also discussed
Analytical approach to geomorphological analysis, estimation of debris potential and hydraulic infrastructures in the Torrente Gravio basin (Susa Valley)
No full textThe study concerns the analysis of a mountain basin (Torrente Gravio, Susa Valley, Turin) from a geomorphological point of view, aimed to estimate the debris potential in order to assess suitability and current conditions of existing hydraulic infrastructures and to propose needed action. The methodological approach followed represents an example of an analysis that takes into consideration several elements: the climatic analysis, the historical research, the geomorphological analysis, the estimation of debris potential through an analytical procedure and, lastly, a critical analysis of existing and/or suggested hydraulic infrastructures based on other achieved results
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Pressure Surge Effects in Oil Pipeline Partially Filled with Gas
No full textLa Rivista dei Combustibili 2 volume 51 - marzo - aprile 199
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