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Nombre de programmes trouvés : 2375
Label UNT Conférences

le (1h5m6s)

Opinion polarization and network segregation. Modelling a complex Relationship

Recently, many societies seem to shift towards more polarization and volatility in opinions, for example in attitudes about immigration, climate policy, or the best policy response to Covid-19. A key obstacle for a scientific understanding of this development is that opinion dynamics in society involve a complex micro-macro interaction between processes of social influence occurring at the micro-level, meso-level conditions like network structures, and macro-level outcomes, like consensus, opinion-clustering or polarization. I will discuss how agent-based simulation models (ABM) can be used to further ...
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Conférences

le (1h5m6s)

Opinion polarization and network segregation. Modelling a complex Relationship

Recently, many societies seem to shift towards more polarization and volatility in opinions, for example in attitudes about immigration, climate policy, or the best policy response to Covid-19. A key obstacle for a scientific understanding of this development is that opinion dynamics in society involve a complex micro-macro interaction between processes of social influence occurring at the micro-level, meso-level conditions like network structures, and macro-level outcomes, like consensus, opinion-clustering or polarization. I will discuss how agent-based simulation models (ABM) can be used to further ...
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Conférences

le (41m28s)

Olivier Joubert - Brief Overview of Current French Hydrogen Research Activities, Focus on Materials

Twenty years ago, the French scientific community working in the field of hydrogen, started to federate under the leadership of the CNRS. It took the form of successive Research Grouping (GdR) bringing together experts in solid oxide fuel cell (SOFC), proton exchange polymer membrane (PEMFC) fuel cells, hydrogen storage and systems mainly from CNRS but also from CEA. These GdRs promoted and structured an interdisciplinary field of research with excellent results.   Since January 1st of 2020, the CNRS community has formed the Research network on ...
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Conférences

le (38m38s)

Pascal Brault - Reactive molecular dynamics simulations of H2 production and conversion

Since H2 production and conversion efficiencies can be improved and monitored at the molecular scale, reactive molecular dynamics simulations (rMDS) are expected to be of great promise for understanding associated basic mechanisms. Basically, rMDS is a technique aiming at solving full trajectories of a set of atoms, molecules, nanoparticles, with the only ingredient of force fields driving interactions between relevant species.   Due to the recent growth of improved and reactive force fields such as ReaxFF and COMB3 families, it become possible to address complicated reactive process such as H2 ...
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Conférences

le (22m21s)

Sixto Malato - Solar photocatalytic hydrogen production at pilot scale

Solar energy is well-recognized as a sustainable and clean energy source. Among the various approaches to solar energy conversion, solar-driven hydrogen production is one of the most promising ways to convert solar energy into hydrogen, a storable fuel. Hydrogen is undoubtedly one of the most attractive renewable alternatives to fossil fuels for a number of reasons: (i) hydrogen can be safely stored; (ii) it is an excellent energy carrier since it can store 3 times as much energy as conventional natural gas; (iii) its combustion is environmentally friendly (no release of greenhouse ...
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