346 research outputs found
Au-delà des crises de santé animale
No full textLaure Bonnaud et Nicolas Fortané viennent de publier une revue de littérature sur l'action publique vétérinaire. Présentant un corpus de plus de 300 références bibliographiques sur la gestion de différentes crises en santé animale (vache folle, grippe aviaire, tuberculose bovine et fièvre aphteuse), l'article montre comment les sciences sociales ont progressivement construit un ensemble de questions sur ce secteur d'action publique particulier qu'est la santé publique vétérinaire. A travers l..
L’alimentation sous contrôle. Tracer, auditer, conseiller, L. Bonnaud, N. Joly (Eds)
No full textL’ouvrage coordonné par Laure Bonnaud et Nathalie Joly est le fruit d’une réflexion élaborée lors d’une journée d’études à l’INRA en 2011. Il réunit neuf contributions, issues de disciplines et de traditions variées : l’économie des filières agroalimentaires, l’histoire et la sociologie des sciences, l’anthropologie de l’écriture, la sociologie et l’anthropologie économiques. Alors que nous pensions avoir fait le tour des recherches sur le contrôle de l’alimentation depuis la crise de la vach..
Roger BONNAUD-DELAMARE. L' immigration helvétique dans les principautés de Murbach et de Lure après la guerre de Trente ans (1649-1715). Paris, Les Belles Lettres, 1966. (Annales littéraires de l'Université de Besançon, vol 76 ; Cahiers d'études comtoises, n° 8.)
No full textDaniel-Feltin Chantal. Roger BONNAUD-DELAMARE. L' immigration helvétique dans les principautés de Murbach et de Lure après la guerre de Trente ans (1649-1715). Paris, Les Belles Lettres, 1966. (Annales littéraires de l'Université de Besançon, vol 76 ; Cahiers d'études comtoises, n° 8.). In: Bibliothèque de l'école des chartes. 1967, tome 125, livraison 2. pp. 499-502
Vertus thérapeutiques des sources guérisseuses ? : P. Saumande, L. Bonnaud, J.-A. Nicolas, F. Retx, M. Pestre-Alexandre, Les "bonnes fontaines" pourraient-elles avoir une action thérapeutique ? Une étude physique, chimique et bactériologique de celles du Limousin
No full textJulien Pierre. Vertus thérapeutiques des sources guérisseuses ? : P. Saumande, L. Bonnaud, J.-A. Nicolas, F. Retx, M. Pestre-Alexandre, Les "bonnes fontaines" pourraient-elles avoir une action thérapeutique ? Une étude physique, chimique et bactériologique de celles du Limousin. In: Revue d'histoire de la pharmacie, 60ᵉ année, n°213, 1972. p. 141
L'Apostolat en Haïti, journal d'un missionnaire... / L. Bonnaud
No full textContient une table des matièresAvec mode text
Effect of Incorporation of POSS Compounds on Thermal and Fire Resistance of Aeronautic Resins
No full textThe aim of this work is to evaluate the effect of different POSS compounds to act as flame retardants in epoxy mixtures for application in the aeronautic field. Four series of POSS: DPHPOSS, ECPOSS, GPOSS and TCPOSS were dispersed into an epoxy-amine mixture by ultrasonication and magnetic stirring. Visual assessment and optical microscopy were performed to analyze the dispersion/dissolution of POSS inside the epoxy formulation. Thermal degradation of POSS was found to be different for the four samples, whereas no significant differences were observed for the epoxy resins containing POSS compounds. Flame retardancy tested by the LOI indicated that GPOSS has meaningful effects on the flame retardancy of the epoxy mixture. The incorporation of 5 wt% GPOSS into epoxy matrix resulted in a LOI value 33 with respect to 27 of the pure epoxy mixture. The trend observed by LOI tests was confirmed by mass loss calorimetry measurements: a decrease from 540 kW/m2 to 327 kW/m2 was observed in the peak of heat release rate (PHRR
ULSI and TFT technologies in industry, research and higher education in France: An evolution towards innovation resulting from close and sustainable interaction
No full textThe semiconductor industry and associated microelectronic production began in France in the early 1980s as part of the national microelectronics plan launched by the French government to meet the needs of new economic sectors that are heavy users of microelectronic products. Indeed, microelectronic circuits, devices and systems are the key elements of the information technology field, which includes computer and communications capabilities, and application fields such as aerospace, transport, and energy, mainly. Several new technologies had to be developed, corresponding to the first advent of communication tools such as Minitel (ancestor of the web) or credit cards, which then underwent huge development. This implied a major effort on both integrated silicon technologies and large area electronics technologies oriented flat panel displays on glass substrates (low temperature process). The latter were to replace the cathode ray tube. Let us notice that due to the drastic reduction of dimensions in ULSI technologies, the thermal budget significantly decreased and both technological approaches progressively converged; today, many deposition techniques are common, for example.
In parallel with the major effort towards the microelectronics industry, the French government has decided to improve higher education in this field and to train future engineers, masters and doctors in research and development and manufacturing with the corresponding knowledge and know-how. More recently, a new national plan has been launched by the French “Commissariat aux Grands Investissements” (Future Invest Plan or PIA1) to improve large area and integrated technologies and adapt to the digital society of the future. This focuses on connected objects and the Internet of Things, products that mainly combine the different components of the fields of microelectronics [1] and more particularly integrated technologies, embedded electronics and large area technologies suitable for flat panel displays, sensors and actuators, but also components of other domains linked to their applications. This supposed also multidisciplinarity [2].
As a consequence, the training of graduate students must follow this evolution in order to well meet the needs of companies and research laboratories with a clear orientation towards innovation. A specific French national program was launched in 2011 and entitled IDEFI for Excellence Initiative for Innovative education in order to set-up innovative formations that may correspond to new pedagogical approach and new content of curricula adapted to the new technologies. The French national network in microelectronics, CNFM [4], applied and succeeded with the project entitled FINMINA [5] for Innovative training in microelectronics and nanotechnologies. With the advent of new educational technologies based mainly on online training such as MOOCs, the strategy has focused on the know-how part of learning. The 12 common centers of the French microelectronics network (CNFM), which include numerous design platforms, cleanrooms, and characterization and testing platforms, have engaged in innovative training projects covering all microelectronics sectors, targeting future applications of connected objects and the industry 4.0.
After a presentation of the context of microelectronics and the evolution of ULSI and TFT technologies, both in academic research and industrial environments, the paper highlights the strategy developed by the French academic and microelectronics community around innovation. Examples of the development by students of future integrated components up to the nanoscale, system-on-chip combining integrated and large area technologies will be presented. The ultimate objective is to best meet the societal needs of the 21st century.
References
1.O. Bonnaud, Int. J. Plasma Environmental Science & Technology, vol. 10, no. 2, pp. 115-120, (2016).
2.O. Bonnaud and L. Fesquet, Proc. of MSE’2015, Publisher IEEE, 4 pages, Pittsburg (MS), USA, (2015).
3.O. Bonnaud, ECS Transaction, 67(1), 147-158 (2015).
4.GIP-CNFM; Public Interest Group - National Coordination for Education in Microelectronics and
nanotechnologies, http://www.cnfm.fr
5.FINMINA: IDEFI project: ANR-11-IDFI-0017 See website of CNF
Multifunctionality of structural nanohybrids: The crucial role of carbon nanotube covalent and non-covalent functionalization in enabling high thermal, mechanical and self-healing performance
No full textThis study proposes new kinds of functionalization procedures able to preserve specific properties of carbon nanotubes (CNTs) and to improve compatibility with the epoxy matrix. Through a covalent approach, for the first time, CNTs are functionalized with the same hardener agent, 4,4′-diaminodiphenyl sulfone, employed to solidify the epoxy matrix and capable to fulfill mechanical requirements of industrial structural resins. The same CNTs are non-covalently modified through the polymer wrapping mechanism with benzoxazine (Bz) terminated polydimethylsiloxane (PDMS). The comparison between electrical and mechanical properties of the nanocomposites highlights the success of the non-covalent functionalization in determining an increase in the glass transition temperature (Tg) and in better preserving the unfunctionalized CNT electrical conductivity. Besides, tunneling atomic force microscopy (TUNA), powerful to catch ultra-low currents, has been used for revealing the morphology on nanoscale domains and detecting the conductivity on the same location of CNT/epoxy resins. No electrical contacts to the grounds have been used for the TUNA analysis; a procedure that does not alter the results on the interface domains which experience contact areas with strong differences in their properties. The effectiveness of performed CNT functionalizations as a route to impart self-healing efficiency to the resin formulations has also been proved
Optimization of Corrosion protection of Aluminum substrates through Benzoxazine base coatings
No full textOptimisation of corrosion protection of aluminium substrates through benzoxazine based coatings.
M. Poorteman, A. Renaud, L. Dumas, Y. Paint, J. Escobar, L. Bonnaud, Ph. Dubois, M.-G. Olivier
Benzoxazines are a new generation of thermoset polymers for the corrosion protection of metal substrates. Several recent papers have shown their ability in protecting such kind of substrates leading to very efficient corrosion barriers. Successful application is related to the conditioning of the substrate and anodizing appears to be a promising road. Further strategies are under development to combine the barrier properties with an active corrosion protection through incorporation of corrosion inhibitors.
Working Group 1: Electrochemical Processing Method
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