Results 11 to 20 of about 10,257 (156)
Élaboration de biomatériaux céramiques optimisés pour l’ingénierie tissulaire osseuse
Cahiers du MIMMOC, 2021 L’utilisation de biomatériaux en médecine humaine remonte à des temps anciens. Le champ de la recherche et du développement de matériaux innovants se fonde sur des schémas stratégiques rationnels.
Amandine Magnaudeix +1 more
doaj +1 more source
Héritage et identité : moyens de construction d’une culture [PDF]
Akofena, 2023 Résumé : Cet article tente de revisiter, d’une part, les liens qui existeraient entre héritage et identité et d’autre part, le rôle que ces deux concepts pourraient jouer dans la construction d’une culture. Pour ce faire, il s’appuie sur des éléments qui
Mor DIEYE
doaj +1 more source
Angewandte Chemie, EarlyView.Directional control within the secondary coordination sphere redefines CO2 reduction by iron porphyrins. Simply rearranging identical urea hydrogen‐bond donors modulates reactivity, revealing that optimal catalysis does not only arise from maximal intermediate stabilization, but also from directional, adaptive non‐covalent interactions that balance ...
Ashutosh Vishwakarma +7 more
wiley +2 more sources
Twentieth Century Fertilizers in France from Natural Mixing to Artificial Making (1890-1970)
Cahiers François Viète, 2017 Compound fertilizer is a material composed of a mixture of primary nutrients. The physical constitution and presentation of compound fertilizer evolved from the nineteenth to the twentieth century.
Philippe Martin
doaj +1 more source
Interdisciplinarité ou mélange des genres en histoire des sciences ?
Cahiers François Viète, 2020 This paper develops methodological reflections based on my own practice of the history of science, without claiming them as a model. Following a brief historical sketch of the institutionalisation process of the history of science and its oscillation ...
Bernadette Bensaude-Vincent
doaj +1 more source
Angewandte Chemie, EarlyView.Cationic titanium sandwich catalysts display exceptional activity in the hydrodefluorination of Csp3─F bonds, in the presence of silanes and aromatic solvents (turnover numbers up to 3000). As a result, they can be used to defluorinate challenging fluoropolymers, such as poly(vinyl fluoride) (PVF) or poly(vinylidene fluoride) (PVDF).
Louis Le Moigne +9 more
wiley +2 more sources
Paint as a Material: The Transformation of Paint Chemistry and Technology in America (ca. 1880-1920)
Cahiers François Viète, 2017 This chapter recounts and analyzes the emergence of modern paint chemistry and technology in the United States. Until late in the 19th century, painting was above all a decorative art and craft, and chemists’ role in the paint trade was largely ...
Augustin Cerveaux
doaj +1 more source
Optimisation fiabiliste d’une structure en alliage à mémoire de forme [PDF]
MATEC Web of Conferences, 2019 L’objectif de l’optimisation fiabiliste (RBDO) est de trouver le meilleur compromis entre la sécurité et le coût. Plusieurs méthodes, telles que la méthode hybride (HM) et la méthode des facteurs optimaux de sûreté (OSF), sont développées pour atteindre ...
Abid Fatma +5 more
doaj +1 more source
Cahiers François Viète, 2017 The material degradation of an historical artifact through chemical breakdown may place the object at the end of its useful heritage “life” in terms of aesthetic value and appearance.
Anita Quye
doaj +1 more source
Angewandte Chemie, EarlyView.Hydride addition to coinage‐metal diphosphine–borane complexes gives unprecedented Cu(I), Ag(I), and Au(I) hydridoborates featuring agostic σ(B–H)→M interactions. While, Cu and Ag derivatives are inert toward CO2, the Au analogue reversibly fixes CO2 and catalyzes its hydroboration as well as formic acid dehydrogenation through a cooperative B─H─Au ...
Balakrishna Peddi +4 more
wiley +2 more sources