Results 31 to 40 of about 153,743 (299)

Dom André Gentil prieur de l’abbaye de Fontenay (Côte-d’Or), aux fondements de l’œnologie du xviiie siècle

open access: yesCrescentis
Il est communément admis de faire coïncider la naissance de l’œnologie moderne avec Chaptal et Lavoisier et le début du xixe siècle. Le premier pour avoir découvert la méthode éponyme de sucrage des vins et le second pour la mise en équation de ...
Dominique Delevoye
doaj   +1 more source

Bacon et la chimie

open access: yesMethodos, 2005
According to the most part of historians, the reception of Bacon’s natural philosophy shows its failure to restore sciences. Bacon was not read faithfully, because his natural philosophy did not grasp with the new science’s canons.
Luc Peterschmitt
doaj   +1 more source

Elucidating the crystal-chemistry of Jbel Rhassoul stevensite (Morocco) by advanced analytical techniques [PDF]

open access: yes, 2008
The composition of Rhassoul clay is controversial regarding the nature of the puremineral clay fraction which is claimed to be stevensite rather than saponite.
A. Maazouz   +28 more
core   +3 more sources

Encoding Magnetic Anisotropies in Digital Light Processing 3D Printing

open access: yesAdvanced Functional Materials, EarlyView.
A hybrid magnetic device—combining a coaxial coil within a nested Halbach array—is presented, integrated into a DLP 3D printer to enable spatially resolved magnetic field control. This system enables complex, multimodal responses by programming liquid crystal elastomer resins for magnetic and thermal actuation, and by inducing electrically conductive ...
Eléonore Aïdonidis   +11 more
wiley   +1 more source

Fontenelle et la chimie : la recherche d’une « loi fondamentale » pour la chimie

open access: yesMethodos, 2012
In this paper, my aim is to reexamine Fontenelle’s position as to chemistry. Before he became the Secretary of the Académie Royale des Sciences of Paris, Fontenelle knew chemistry quite badly and he ridiculed it in his personal works; but as the ...
Luc Peterschmitt
doaj   +1 more source

Microemulsion breakdown by pervaporation technique: Effect of the alkyl chain length of n-alkanol, a cosurfactant of the microemulsion [PDF]

open access: yes, 2007
Two sets of microemulsions, cyclohexane- and water-rich ones, were prepared with the following n-alkanols as cosurfactants: n-propanol, n-butanol, n-pentanol, and n-hexanol.
Canselier, Jean-Paul   +2 more
core   +2 more sources

Nano‐ and Micro‐Sized Solid Materials Used as Antiviral Agents

open access: yesAdvanced Functional Materials, EarlyView.
Due to the rise of viral infections in humans and possible viral outbreaks, the use of nano‐ or micro‐sized materials as antiviral agents is rapidly increasing. This review explores their antiviral properties against RNA and DNA viruses, either as a prevention or a treatment tool, by delving into their mechanisms of action and how to properly assess ...
Orfeas‐Evangelos Plastiras   +6 more
wiley   +1 more source

Multicatalytic Access to Renewable Poly(Silyl Ether)s with Tunable Properties

open access: yesAngewandte Chemie, EarlyView.
This work presents a one‐pot, multicatalytic approach that combines magnesium‐catalyzed esterification and borane‐mediated hydrosilylation for the synthesis of partially bio‐based poly(silyl ethers). This method allows for the tuning of thermal and mechanical properties, including exceptional extensibility (>3800%), and enables efficient chemical ...
Fan Yang, Fan Sun, Christophe M. Thomas
wiley   +2 more sources

Le contexte : reconversion de la chimie vers la chimie verte

open access: yesOléagineux, Corps gras, Lipides, 2012
Chemical industry is a key sector on the world industrie with a twolrd urnover that reached 1 871 billions of euros in 2009 and with an annual turnove in France of 77 billions in 2010.
Bewa Hilaire, Le Ravalec Virginie
doaj   +1 more source

Reactivity of aluminum sulfate and silica in molten alkalimetal sulfates in order to prepare mullite [PDF]

open access: yes, 2004
With the aim of preparing mullite, reactions between aluminum sulfate and silica in appropriate proportions and molten sulfate media M2SO4 (M=Na and/or K) were performed at different temperatures.
Durand, Bernard   +5 more
core   +2 more sources

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