1,068 research outputs found
Modelling and control architecture for a spatial manipulator with three rigid links and one very flexible long arm
No full textPrésentation du colloque
No full textMartella Christine. Présentation du colloque. In: La Gazette des archives, n°146-147, 1989. Archives et révolution : création ou destruction ? (actes du colloque organisé par l’AAF, groupe régional Provence-Alpes-Côte-d’Azur, Châteauvallon, 10-11 mars 1988) p. 195
Présentation du colloque
No full textMartella Christine. Présentation du colloque. In: La Gazette des archives, n°146-147, 1989. Archives et révolution : création ou destruction ? (actes du colloque organisé par l’AAF, groupe régional Provence-Alpes-Côte-d’Azur, Châteauvallon, 10-11 mars 1988) p. 195
Fatigue analysis of honeycomb-composite sandwich beams
No full textThe fatigue behaviour of honeycomb sandwich beams is experimentally investigated through four-point bending tests. Two kinds of specimens, initially undamaged and damaged by interface debonding, have been tested. The fatigue tests results are presented in standard SN diagrams with a best curve fit of the experimental data, while the fatigue limit is evaluated through a stair-case procedure. Two different failure mechanisms were found: undamaged specimen failure is due to collapse of the compressed face, while damaged specimen failure occurs due to the collapse of the honeycomb cell walls at the tip of the debonded portion
Coach passenger injury risk during rollover: influence of the seat and the restraint system
No full textIn the last years the European Community funded several projects, whose general aim was to improve the safety of road users. Among them, the "Enhanced Coach and Bus Occupant Safety" (ECBOS) Project was set up in order to study improvements in current regulations and propose new standards for the development of safer buses and coaches. For what concerns the rollover protection (ECE66 Regulation), one of the main suggestions, proposed by the partners of the ECBOS project [1], is to take into account the presence of the passengers on board both in the numerical and in the experimental homologation tests. An additional mass in the vehicle increases the energy assumed to be absorbed by the structure in order to pass the test. That could lead the bus manufacturers to increase the strength of the vehicle super-structure in order to obtain a deformation level below the limits stated in the ECE66 regulation. A numerical study was performed to evaluate how an increment of the super-structure strength, that ensures the vehicle to pass the homologation test with the passengers onboard (i.e. to avoid intrusions into the residual space defined by the regulation), affects the injury risk for the passengers themselves. To perform such a kind of study, it is essential to model the interactions of the passengers with the coach inside environment accurately. One of the most important components that greatly influence the movement of the passengers inside the vehicle is the seat. For that reason, a detailed hybrid model (Mulibody - FE) of a seat was developed based of a real coach seat, whose data were provided by a seat manufacturer. Two configurations were analysed, changing the restraint system (two-point and three point belt). The injury risk for passengers was evaluated calculating the most significant injury parameters and criteria (HIC, TTI, VI, etc.
Educazione per l’inclusione interculturale. La scuola italiana alla ricerca della definizione di linee guida e indicatori: orientamenti pedagogici e buone pratiche.
No full textThe phenomenon of globalization has led to a profound revolution and radical transformation of Western societies, which are becoming more and more multicultural. Being citizen of an ethnic, national, cultural and religious community, is no longer the determining factor to establish the identity of a person. This claims a planetary condition, which demands a new plural mindset, opened to the values of dialogue and multiculturalism. The educational institution, responsible for disseminate and spread the contents and values of the dominant society, has to review its internal dynamics, promoting pluralism and respect for diversities. Italy, by transit country, has become a country in which immigrants are now a structural component of society and a peculiarity of immigration is the heterogeneity of the immigrants’nationalities.
The aim of this research is to analyze the inclusive good practices in Italian schools, with particular reference to the issue of intercultural bilingualism of the students with non-Italian citizenship, taking into account the relationship between the learning of the second language and maintaining of the mother tongue.
In this regard, the teacher plays a key role in the management of the many school problems that come about. In this complex setting, the teacher’s continuing and permanent education is crucial in order to respond to the constant changes and the diverse needs of learners. The professional knowledge, acquired by the teacher, concerning intercultural education, should be seen as a synergy between theoretical issues and revisions of educational practices – this process being guided by the reflective thought approach proposed by John Dewey, subsequently developed by Donald Alan Schön with regard to the professional field
Analisi sperimentale del comportamento a fatica di una struttura sandwich composito-honeycomb
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