121,972 research outputs found
Prediction Method for the Surface Damage in Splined Couplings
No full textThe primary purpose of my PhD thesis was to develop design criteria and to verify procedures about fretting wear, that are applicable to crowned spline couplings of a power transmission system of the aeroengines. Fretting is a very complex phenomenon being influenced by many factors, the most important being the presence or absence of lubrication, the load distribution (contact pressure) and the sliding between the bodies. Therefore, the study of fretting needs a deep knowledge of these three main aspects. The first aspect of the problem was based on models and experimental tests considering specify specimens (crowned spline couplings) and imposed movements, so as to uniquely identify the working conditions (load and sliding), in order to facilitate the comparison between the experimental tests and the analytical models. The analytical models have been validated with numerical simulations and by comparison with experimental data, that have been obtained by means of a dedicated test bench that has been designed and built. Thanks to the test rig was possible to determinate the real contact pressure of two engaging teeth; in fact, it is one of the most important parameters affecting the fretting phenomenon, but it is very difficult to evaluate in a quantitative way, especially when considering components with complex geometries. The second phase of this thesis was the development of a predictive model for crowned splined couplings. This model is based on the Ruiz first parameter. The aim of my thesis is to demonstrate how this parameter may be correctly applied to a complex component as the crowned spline coupling, taking into account experimental and FEM validation
Profili di diritto transitorio
No full textOggetto d'analisi l'incidenza sui contratti in corso dello ius superveniens di cui alla legge n. 129/2004, in materia di affiliazione commerciale,con particolare riguardo ai profili della forma, della durata e dell'annullabilità per false informazioni
FOREIGN ACQUISITIONS OF LAND IN DEVELOPING COUNTRIES. RISKS, OPPORTUNITIES AND NEW ACTORS
No full textThe Special Issue focuses on the recent wave of foreign acquisitions of land in developing countries and provides. This essay article reviews the debate, providing an overview of the extent, patterns and origin of investments, and contextualizing the various contributions included in the issue. The main sections are devoted to the determinants of FDI, including the balance between risks and benefits of land internalization, the opportunities and risks of land acquisitions and regulation. The deals involve land usually on a very large scale and predominantly in the context of complex and unclear structures of property rights; weak stakeholders may have insufficient “voice” vis-à-vis their governments; governments may have weak planning and regulatory abilities. The possible risks of increasing investments are associated with property rights and potential dispossession of vulnerable land users, land concentration and lack of transparency in the contracts
Orwel e il contratto di locazione: note a margine dell’art. 1, co. 59, legge 28 dicembre 2015, n. 208
No full textQuel che resta di un codice: il d.lgs. 10 agosto 2018, n. 101 detta le disposizioni di adeguamento del codice della privacy al Regolamento sulla protezione dei dati
No full textCommento all'art. 1 Reg. n. 861 del 2007 (Procedimento europeo per le controversie di modesta entità - Oggetto)
No full textSOMMARIO
1. Le finalità del regolamento n. 861/2007/CE come modificato dal regolamento n. 2421/2015/UE. — 2. Il carattere opzionale del procedimento europeo per le controversie transfrontaliere di modesta entità. — 3. L’immediata eseguibilità in ogni Stato dell’Unione della sentenza resa al termine del procedimento europeo. — 4. Nessi
Partecipazione del conduttore alle assemblee condominiali (art. 10, L. 27.7.1978, n. 392)
No full textCommento all'art. 10 l. n. 392/1978
Commento all'art. 2 Reg. n. 861 del 2007 (Procedimento europeo per le controversie di modesta entità - Campo di applicazione)
No full textSOMMARIO
1. I criteri di operatività del regolamento n. 861/2007/CE: a) il limite ratione valoris. — 2. (Segue): b) il limite ratione materiae. — 3. (Segue): c) il limite territoriale. — 4. Nessi
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