Results 21 to 30 of about 287 (116)

Strain analysis of black‐to‐yellow phase transitions in CsPbI3

open access: yesInfoMat, Volume 8, Issue 2, February 2026.
All‐inorganic metal‐halide perovskite CsPbI3 shows strong potential for photovoltaic applications. Here strain analysis is used to probe the mechanisms behind the instability of its photoactive black phase. The results indicate that a relatively large positive (e1–e2) strain is the primary driver of the black‐to‐yellow phase transition.
Bangwei Jin   +6 more
wiley   +1 more source

Simple and Environmentally Friendly Solution Synthesis of CsPbI3 Nanoribbons: Investigating the Reversible δ‐ to γ‐Phase Transition

open access: yesAdvanced Photonics Research, Volume 6, Issue 12, December 2025.
Cesium lead iodide (CsPbI3) nanoribbons obtained through mild condition synthesis are herein reported without surfactant species and toxic solvent starting from β‐diketonate complexes of Cs and Pb. The morphological and structural features, together with the thermal stability and phase transitions from the yellow δ to the black α and γ‐CsPbI3 phases ...
Lorenzo Sirna   +7 more
wiley   +1 more source

Opinion and report of the French Agency for Food, Environmental and Occupational Health & Safety (ANSES) relating to an analysis of the health risks associated with exposure to caterpillars with stinging hairs and the development of management recommendations

open access: yesFood Risk Assess Europe, Volume 3, Issue 2, April 2025.
Abstract Several species of Lepidoptera with caterpillars bearing urticating hairs are increasing their range in metropolitan France from year to year, such as the pine processionary (Thaumetopoea pityocampa Denis et Schiffermüller 1775) whose presence was historically limited to the south of France, and which is gradually being observed in the north ...
Nicolas Desneux   +105 more
wiley   +1 more source

Postface : Le référentiel : cet obscur objet du droit [PDF]

open access: yes, 2023
« Bondissant », le terme de référentiel dans le domaine de l’éducation est entré avec éclat dans le débat médiatique au cours des années 2000, quand un ministre de l’Éducation l’invoqua pour dénoncer ce qu’il appelait le volapük « Ednat », hermétique à ...
Caillaud, Pascal
core   +1 more source

Structural Disorder by Octahedral Tilting in Inorganic Halide Perovskites: New Insight with Bayesian Optimization

open access: yesSmall Structures, Volume 5, Issue 11, November 2024.
Structural disorder phenomena of inorganic halide perovskites in terms of octahedral tilting around three lattice axes are computationally studied. Bayesian optimization machine learning technique assists to rapidly converge the three‐dimensional potential energy surfaces.
Jingrui Li   +10 more
wiley   +1 more source

Le marronnier d'Inde (Aesculus hippocastanum L.) : études botaniques, chimiques et thérapeutiques [PDF]

open access: yes, 2014
The horse chestnut (Aesculus hippocastanum L.) is a tree belonging to the family Hippocastanaceae; native to the Balkans, it needs sunshine and a wetland for growth. Its large palmately compound leaves generally comprise seven toothed leaflets.
Vieu, Cécile
core  

Les images ont parlé ! Mais qu'attendent-ils ?

open access: yes, 2021
Vous deviez deviner pourquoi ces gens attendaient sous un arbre. Les différents indices donnés par la devinette (à (re)voir ici) convergeaient vers des châtaigniers et des marronniers à Paris et en région parisienne.
Blog Histoire
core  

L’arbre et le philosophe. Du platane de Barrès au marronnier de Sartre

open access: yes, 2009
International audienceL’article part d’une hypothèse : malgré les démentis ou dénégations de Sartre, le marronnier qui est au cœur de l’expérience existentielle de La Nausée est le pendant du platane qui où culmine la leçon philosophique des Déracinés ...
Zard, Philippe
core   +1 more source

"Bataille mondiale contre la faim et pour une alimentation saine"

open access: yes, 2021
International audienceCela peut paraître une ritournelle connue, un marronnier de la presse comme on en lit chaque été, la question de la faim est bien plus que cela.
Fumey, Gilles
core   +2 more sources

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