Results 111 to 120 of about 1,570,751 (238)

Durable Fuel Cell Cathode Enabled by Pt Embedded Nanoscale Carbon Network via a Scalable Process

Carbon Energy, EarlyView.
Platinum nanoparticles embedded nanoscale carbon network (Pt‐e‐Cn) are developed via a scalable flame spray pyrolysis process. Proton exchange membrane fuel cells (PEMFC) employing mesoporous Pt‐e‐Cn cathode electrocatalysts exhibit exceptional durability without compromising performance.
Suriya Venkatesan, Jens Mitzel, Tobias Morawietz, Emmanuelle Boehm‐Courjault, Deven P. Estes, Laure Guétaz, Indro Biswas, Jan Van Herle, Karsten Wegner, Pawel Gazdzicki, Kaspar Andreas Friedrich   +10 more
wiley   +1 more source

Désir, besoin, dépendance : l'addiction comme (é)preuve de la modernité

M@GM@, 2016
La frontière entre la santé et la pathologie est un lieu fascinant et dangereux, au caractère poreux et riche de familiarités des deux côtés, inavouées et coûteuses.
Rita Di Lorenzo
doaj  

The Future of Foundation Machine Learning Potentials and DFT in Homogeneous Catalysis: Competition or Synergy?

Chemistry – A European Journal, EarlyView.
Machine‐learning potentials are increasingly taking on the exploratory tasks of homogeneous catalysis, enabling rapid conformer sampling and reaction‐space mapping. However, when selectivity depends on subtle electronic effects, electronic‐structure methods remain essential.
Maxime Ferrer, Julen Munarriz, Thijs Stuyver, Ruben Laplaza   +3 more
wiley   +1 more source

École française d'Athènes

, 1894
École française d'Athènes. In: École pratique des hautes études, Section des sciences historiques et philologiques. Annuaire 1894. 1894.

core   +1 more source

Les collégiens du quartier populaire : Perceptions socio-spatiales et scolarité

Revue des Sciences Humaines et Sociales de l’Académie du Royaume du Maroc
Les collèges situés au sud de la ville de Safi au Maroc se trouvent dans des quartiers populaires. Ces quartiers se caractérisent par une densité de population élevée, des habitations précaires, par endroit, qui ne répondent pas aux normes de base en ...
zouhair ennabih, zakaria kadiri, Touria Houssam   +2 more
doaj   +1 more source

Ratiometric pH‐Responsive and Biomimetic Microparticles for Quantitative Monitoring of Phagosomal Acidification

Chemistry – A European Journal, EarlyView.
A series of hydrosoluble BODIPY pH probes allows building biomimetic pH sensors based on micrometric oil‐in‐water droplets. The ratiometric fluorescence output offers quantitative information on the evolution of pH during phagosome maturation. ABSTRACT We present a modular biomimetic fluorescent sensing platform designed to precisely interrogate the ...
Sophie Michelis, Héloïse Uhl, Florence Niedergang, Jacques Fattaccioli, Blaise Dumat, Jean‐Maurice Mallet   +5 more
wiley   +1 more source

Revisiting the synthesis of dimethyl carbonate from methanol and carbon dioxide

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The process for producing dimethyl carbonate (DMC) from carbon dioxide (CO2) and methanol is explored in this article. It provides an overview of the thermodynamics involved in DMC synthesis, discussing the challenges and potential solutions. The article highlights the reported use of catalysts and dehydrating agents to improve DMC yield and ...
Diego Alexander Santos Araque, Niloofar Mozaffari, Louis Fradette, Serge Kaliaguine   +3 more
wiley   +1 more source

Front Propagation Through a Perforated Wall

Communications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We consider a bistable reaction– diffusion equation ut=Δu+f(u)$u_t=\Delta u +f(u)$ on RN${\mathbb {R}}^N$ in the presence of an obstacle K$K$, which is a wall of infinite span with many holes. More precisely, K$K$ is a closed subset of RN${\mathbb {R}}^N$ with smooth boundary such that its projection onto the x1$x_1$‐axis is bounded and that ...
Henri Berestycki, François Hamel, Hiroshi Matano   +2 more
wiley   +1 more source

Xylose Acetals ‐ a New Class of Sustainable Solvents and Their Application in Enzymatic Polycondensation

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
Novel organic solvents with an unmodified carbohydrate core were synthesised both from D‐xylose and directly from biomass and were successfully used as reaction media for lipase biocatalysts to synthesise aliphatic and aromatic polyesters. Abstract The use of organic solvents in academic research and industry applications is facing increasing ...
Anastasia O. Komarova, Cicely M. Warne, Hugo Pétremand, Laura König‐Mattern, Johannes Stöckelmaier, Chris Oostenbrink, Georg M. Guebitz, Jeremy Luterbacher, Alessandro Pellis   +8 more
wiley   +1 more source

Relationship between home range and population density in mammals: the role of sociality, territoriality and habitat dimensionality

Ecography, EarlyView.
Organisms' energy requirements increase with body mass, leading to larger home range areas and lower population density. Previous research has highlighted the differential scaling of these variables in mammals, where species with large home ranges have higher density than expected due to increased home range overlap. Here we investigate this phenomenon
Luca Santini, Gianni Jacucci, Marlee A. Tucker   +2 more
wiley   +1 more source