Search results for "MAI"
showing 10 items of 6279 documents
Numerical simulation of radiated EMI in 42V electrical automotive architectures
2006
The work is focused on the evaluation of radiated electromagnetic interference generated by dc/dc converters in 42 V systems automotive environment. The results obtained by using the method of moments and the finite difference time domain method, separately, are presented and validated in comparison with those measured in a semi-anechoic electromagnetic chamber. A measurement system set up by the authors is employed. Both the used numerical approaches are proved to be an useful tool for radiated disturbance prediction, and also for electromagnetic compatibility oriented design of the vehicle electrical architecture.
Numerical Simulation of Thermal Effects in Coupled Optoelectronic Device-circuit Systems
2008
The control of thermal effects becomes more and more important in modern semiconductor circuits like in the simplified CMOS transceiver representation described by U. Feldmann in the above article Numerical simulation of multiscale models for radio frequency circuits in the time domain. The standard approach for modeling integrated circuits is to replace the semiconductor devices by equivalent circuits consisting of basic elements and resulting in so-called compact models. Parasitic thermal effects, however, require a very large number of basic elements and a careful adjustment of the resulting large number of parameters in order to achieve the needed accuracy.
A Metamodeling Approach to Evolution
2001
With the increasing complexity of systems being modeled, analysis & design move towards more and more abstract methodologies. Most of them rely on metamodeling tools that employ multi-view models and the four-layer metamodeling architecture. Our idea is to use the metamodeling approach to classify and to constraint the possible evolutions of an information system with the effect to improve both detection of evolution conflicts and disciplined reuse. Within the domain of UML metamodeling, a refinement of the metamodel-level classification is proposed that includes bases for defining a metric of the evolution (in terms of distance between metamodels).
Sponsored Content in Spanish Media: Strategies, Transparency, and Ethical Concerns
2021
Profound upheavals and the search for a viable business model have led the news industry to explore new sources of revenue. The mainstream Spanish media have set up special units to produce branded...
Controlled-by-owner firms, mobility of capital and microeconomic profit rate maximization
1999
When they actively control the firm, owners select the firm that has the best profit rate if the hypothesis of mobility of capital is adopted: controlled-by-owner firms are profit-rate-maximizing when sleeping-owner firms are pure-profit-maximizing. Both types are compared in monopoly, in perfect competition, in classical or in mixed duopoly. Always, controlled-by-owner firms have a lower output than comparable sleeping-owner firms. It only takes a fixed coefficient of equity capital to do that price plays no role for controlled-by-owner firms in perfect competition; in duopoly, it only takes a similar condition plus a linear demand to do that reaction functions vanish.
La production et valorisation des compétences sur le marché du travail : des approches néo-classiques à l'économie des conventions
2003
This research starts from human capital theory to study the production and valorization of competences in the labor market. Using the potentials and constraints of the neo-classical approach, the incorporation of other areas of economic science as well as other social sciences contributions are proposed. We believe that the key notions economics of education - human capital and wages, are necessary but they are inadequate to explain the level of individual competence or his level of remuneration. We propose a coherent integration of the theoretical and methodological tools of economics of education as well as of the economics of conventions and economics of human resources. And it includes …
Réflexions méthodologiques sur l'apport d'un dispositif de formation innovant concernant le développement des compétences non académiques
2014
Les formations universitaires, générales ou professionnelles, se sont peu intéressées jusqu'à présent au développement des compétences non cognitives des étudiants. De nombreux travaux de recherches soulignent néanmoins l'importance de certaines compétences sur les parcours de formation, d'insertion ou de mobilité professionnelle indépendamment des savoirs cognitifs acquis par les individus (Bowles et alii, 2001 ; Heckman et alii ; 2006...). Se pose la question de l'évaluation de ces compétences, surtout lorsque les formations cherchent à les inscrire dans leur cursus. Les travaux sur l'évaluation montrent que l'acquisition des compétences sociales ou non cognitives est en général beaucoup …
Les compétences sociales et la réussite scolaire des élèves de cycle III. L'effet de l'accompagnement scolaire
2016
Differences of achievement in school, traditionally studied by Education researchers, can be analyzed in the light of skills and especially social skills. This scientific field is under construction but social skills still become a "must" for actors of the school system and for Educational Sciences. Through a multidisciplinary approach, this thesis proposes to question the link between social skills and academic achievement of students, taking into account factors related to their various socialization frameworks (family, school, extra-curricular). A reliable analytic tool of social skills (in a sample of 855 students from 7 to 12 years) allows to understand first of all, that inter and int…
Le développement du capital humain en lien avec les compétences psychosociales
2018
International audience
L'intérêt de la prise en compte des compétences non académiques dans la redéfinition du capital humain développé par les élèves. Une application sur …
2017
International audience