Virsol

Compagnie Generale D'electricite

Claude Roques-Carmes

Pascal Breton

Nicole Bru-Magniez

Patrick Couvreur

G&eacute;rard Riess

Alain R Le Mehaute

Fran&ccedil;ois Lescure

Xavier Guillon

Jean-Francois Quiniou

Dalloul Wehbi

Nicole Br&uacute;-Magniez

Jo&euml;l Richard

Isabelle Beliard

Virginie Larras

Benrard Kurdyk

Antoine Derossis

Surfactant copolymers based on methylidene malonate

Suture material for wounds based on methylidene malonate

The invention concerns a method for the mechanochemical treatment of a material characterised in that to improve said material surface properties by mechanochemical anchoring, such as in particular its adhesive capacity during subsequent assembling, or to improve its use properties by producing composite structure surface coatings, consisting in projecting on said material particles with laminated structure consisting of a core and a coating comprising at least a polymer and optionally a chemical agent, in conditions such that said particles and/or fragments resulting from their fracturing are embedded and/or penetrate into said material. The invention is applicable in dentistry, the biomedical field, motor industry, avionics, printing industries, agro-industry, mechanical industries.

Method for mechanochemical treatment of a material

Methylidene malonate nanoparticles

The invention relates to a method for the preparation of nanoparticles formed from a random polymer of at least one compound of formula (I)

Method for preparing malonate methylidene nanoparticles, nanoparticles optionally containing one or several biologically active molecules

A signal generator generates a temporal signal with a periodic configuration defined by an arrangement of seed patterns resulting from a branching construction iteratively using laws for composing several patterns and consisting in defining the periodic configuration of the signal as a component 'a.sub.n ' of the nth term Un with several components (a.sub.n, b.sub.n) of a recurrent sequence defined at the level of each of its components by a specific recurrent composition law, the initial term U0 having for its components the seed patterns (a.sub.0, b.sub.0). The temporal signals known as 'fractal' signals result from a branching construction of this kind. The generator comprises a microprocessor (10) associated with a keyboard-display system (11), a read-only memory (12) for programs, a random access memory (13) and an output digital-to-analog converter (14). When creating a signal periodic configuration pattern its working memory contains at least three files: a current patterns file, a previous patterns file and an old patterns file, the current patterns being constructed from arrangements of old patterns in which the seed patterns have been replaced by the preceding patterns.

Fractal-type periodic temporal signal generator

The temporal signal generated has a periodic configuration defined by an arrangement of seed patterns resulting from a branching construction employing n successive applications of m pattern type laws each defined by a specific arrangement of p pattern types. This construction amounts to defining a periodic signal configuration as a component 'an' of the nth term Un with several components (an, bn) of a recurrent sequence defined at the level of its components by a particular recurrent composition law, the initial term UO having for its components the seed patterns (aO, bO). The temporal signals known by the name 'fractal' result from a branching construction of this kind. The generator comprises an elementary signal forms generator circuit (20) corresponding to the definitions of the seed patterns, an m-digit counter (30) to base p incremented when each elementary signal form is delivered by the elementary forms generator circuit (20) and a pattern type selector circuit (40) controlled by the counter (30) to base p and controlling the elementary forms generator circuit (20).

Recursive-type periodic temporal signal generator

Growing community of inventors

Besancon, France

Claude Roques-Carmes