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81.
Mathieu Martinez Laure Cointeaux Jean-Claude Leprêtre Patrick Judeinstein 《Journal of power sources》2010,195(18):5829-1379
The paper deals with the synthesis and characterisation of proton-conducting ionic liquids (PCILs) and their polymer electrolytes obtained by blending modified Nafion membranes with different concentrations of PCILs. The PCILs are obtained by the neutralization of triethylamine with different organic acids. The first part of the paper studies the influence of acidity and acid structure on PCIL thermal and electrochemical performance, while the second part examines membrane conductivity and reveals it to depend more on PCIL structure than on its intrinsic conductivity. At 130 °C, conductivities exceeding 10 mS cm−1 were obtained in fully anhydrous conditions. 相似文献
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Prashant Sonar Luke Oldridge Andrew C. Grimsdale Klaus Müllen Mathieu Surin Roberto Lazzaroni Philippe Leclère Jason Pinto Lay-Lay Chua Henning Sirringhaus Richard H. Friend 《Synthetic Metals》2010,160(5-6):468-474
The synthesis of alternating copolymers of tetraalkylindenofluorene with bithiophene and terthiophene using Suzuki polycondensation route is reported. We report on the optical and electrochemical properties of these copolymers. AFM analysis of the microscopic morphology of thin deposits showed that the copolymer with terthiophene units produced the more ordered films, with well-defined fibrillar structures, resulting from highly-regular dense packing due to strong π–π interchain interactions, in contrast to the amorphous bithiophene copolymer. Upon testing these materials in FETs the terthienyl copolymers displayed the higher charge mobilities among the studied compounds, with values of over 10?4 cm2 V?1 s?1 being obtained. 相似文献
84.
Andrea Leal Penados Mathieu Gielen Pieter-Jan Stappers Tinus Jongert 《Personal and Ubiquitous Computing》2010,14(5):397-406
Health experts are worried about the increase in the number of overweight children and the decrease in activity levels among
this age group. This project explores the possibilities of using interactive toys and social interaction in encouraging children
to become more physically active. To arrive at the final concept, research was conducted into the factors that encourage and
discourage physically active play in children. Based on that knowledge, four key elements were used to develop the product:
fantasy, social interaction, surmounting physical and cultural barriers and inspirational factors. The project resulted in
a cuddly toy that stimulates young children aged 4–8 to care for it through their own physical actions. First limited tests
indicated that children appreciated and understood the toys’ key elements, and suggest that it could be possible to use interactive
toys and social interaction to change behaviour with regard to physical activity. 相似文献
85.
Mathieu Thevenot Sylvie Dousset Philippe Schmitt-Kopplin 《The Science of the total environment》2009,407(14):4297-4302
Diuron is frequently detected in some drinking water reservoirs under the Burgundy vineyards, where organic amendments are applied. The environmental effect of these amendments on pesticide transport is ambiguous: on the one hand it could enhance their retention by increasing soil organic carbon content; on the other hand, dissolved organic matter (DOM) could facilitate their transport. Elutions were performed using columns packed with glass beads in order to investigate DOM-diuron interactions, and the possible co-transport of diuron and DOM. Four organic amendments (A, B, C and D) were tested; C and D were sampled at fresh (F) and mature (M) stages. An increase in diuron leaching was observed only for A and DF amendments (up to 16% compared to the DOM-free blank samples), suggesting a DOM effect on diuron transport. These results could be explained by the higher DOM leaching for A and DF compared to B, CF, CM and DM increasing diuron-DOM interactions. These interactions seem to be related to the aromatic and aliphatic content of the DOM, determining formation of hydrogen and non-covalent bonds. The degree of organic matter maturity does not seem to have any effect with amendment C, while a reduction in diuron leaching is observed between DF and DM. After equilibrium dialysis measurement of diuron-DOM complexes, it appeared that less than 3% of the diuron applied corresponded to complexes with a molecular weight > 1000 Da. Complexes < 1000 Da could also take part in this facilitated transport. 相似文献
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Medical decision protocols constitute theories for health-care decision making that are applicable for “standard” medical
cases but have to be adapted for the other cases. This holds in particular for the breast cancer treatment protocol studied
in the Kasimir research project. Protocol adaptations can be seen as knowledge-intensive case-based decision support processes. Some examples
of adaptations that have been performed by oncologists are presented in this paper. Several issues are then identified that
need to be addressed while trying to model such processes, namely: the complexity of adaptations, the lack of relevant information
about the patient, the necessity to take into account the applicability and the consequences of a decision, the closeness
to decision thresholds, and the necessity to consider some patients according to different viewpoints. As handling these issues
requires some additional knowledge, which has to be acquired, different methods are presented that perform adaptation knowledge
acquisition either from experts, or in a semi-automatic manner. A discussion and a conclusion end the paper. 相似文献
88.
Mathieu John E.; Heffner Tonia S.; Goodwin Gerald F.; Salas Eduardo; Cannon-Bowers Janis A. 《Canadian Metallurgical Quarterly》2000,85(2):273
The influence of teammates' shared mental models on team processes and performance was tested using 56 undergraduate dyads who "flew" a series of missions on a personal-computer-based flight-combat simulation. The authors both conceptually and empirically distinguished between teammates' task- and team-based mental models and indexed their convergence or "sharedness" using individually completed paired-comparisons matrices analyzed using a network-based algorithm. The results illustrated that both shared-team- and task-based mental models related positively to subsequent team process and performance. Furthermore, team processes fully mediated the relationship between mental model convergence and team effectiveness. Results are discussed in terms of the role of shared cognitions in team effectiveness and the applicability of different interventions designed to achieve such convergence. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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