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Small scale experimental testing on base isolation and tuned mass damper combined control strategy
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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
L’influenza della modellazione sull’analisi della risposta sismica delle strutture esistenti in c.a. valutata mediante procedure statiche non lineari
Full text linkAttivazione dei macrofagi polmonari umani indotta dall’istamina: ruolo nella flogosi allergica.
No full textAttivazione dei macrofagi polmonari umani indotta dall’istamina: ruolo nella flogosi allergica.
No full textAntiviral activity of selected biguanide derivatives
No full textBiguanide and twenty N1-substituted biguanide derivatives were examined for in vitro antiviral activity against polio 1, vaccinia and influenza A viruses. Only the alkyl-derivatives with 4 carbon atoms in the alkyl chain were active against polio virus; on vaccinia and influenza viruses both short and long chain alkyl-derivatives are effective, and activity increases as the length of the alkyl chain grows from 1 to 4 carbon atoms. These results agree with the ones of previous investigations on the antitumoral activity of the same compounds. Among the aryl-derivatives, benzyl-biguanide is effective on both vaccinia and influenza viruses, while phenyl-biguanide is not. Adding a methyl group, their activity is not modified. Diaryl-derivatives are active only on vaccinia virus; cycloaliphatic-derivatives are completely inactive. © 1974 The Italian Pharmacological Society
Small scale experimental testing to verify the effectiveness of the base isolation and tuned mass dampers combined control strategy
Full text linkThis paper presents the most significant results obtained within a broad-ranging experimental program aiming
to evaluate both the effectiveness and the robustness of a Base Isolation (BIS) and a Tuned Mass Damper (TMD) combined
control strategy (BI & TMD). Following a brief description of the experimental model set-up and the adopted kinematic
scaling technique, this paper describes the identification procedures carried out to characterize the system’s model. The
dynamic response of a small-scale model to recorded earthquake excitations, which has been scaled by using the Buckingham
pi-theorem, are later presented and discussed. Finally, the effectiveness and robustness of the combined control strategy is
evaluated by comparing the model’s dynamic response. In particular, reduction in relative displacements and absolute
accelerations due to the application of different mass damping systems is investigated
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