Abstract:
A process for treating plants, including the application of at least one compound, termed carbonic ester of glycerol, including at least one carboxylic ester function formed by a carbonic acid-derived group and at least one glycerol-derived group, with the exception of cyclic glyceryl carbonate including five ring members.
Abstract:
An optical device (10) for determining a physical parameter includes: a laser diode (11) for emitting a beam toward a target; an element for detecting (13) an interferometric signal SM(t) which includes the information on the physical parameter to be determined, and which is generated by an interference between the emitted beam and a light beam reflected by the target; element for converting (15) the signal SM(t) obtained by the detection element (13) into a measurement of the physical parameter, the conversion element (15) including: first element (17) for suppressing a continuous component Off(t) of the interferometric signal SM(t); second element (18) for determining interferometric peaks in the interferometric signal SM(t) obtained from the signal obtained at the output of the first element (17). An associated method, particularly suitable for speckle interferometric signals is also described.
Abstract:
A static converter with parallel architecture or series architecture comprises a plurality of switching cells, arranged in parallel or in series, and controlled in a decentralized manner by associated control modules, strung together according to a loop by a series of communication links.Each control module comprises a single and different local unit for generating the triangular carrier of the module which controls the positioning of its interleaving phase as a function only of the signals of the triangular carriers of the two adjacent modules.Each control module comprises a local unit for balancing the currents of branches and/or a unit for internal regulation of the output voltage of AVP type, or a local unit for balancing the cell voltages and/or a unit for internal regulation of the input current or output current of the ACP type.
Abstract:
A method for synthesising dimethyl carbonate from methanol and urea, in which a saline ureic medium is used that includes at least one inorganic salt selected from the group made up of zinc (Zn) (II) chloride, tin (Sn) chlorides and iron (Fe) (III) chloride, characterised in that: methanol, in the presence of a catalytic composition, is placed in contact with the saline ureic medium that is at least partially liquid at a temperature referred to as synthesis temperature, which is higher than 140° C., such that reaction vapours are produced; the reaction vapours are condensed, and a condensate of the reaction vapours is collected, including dimethyl carbonate; the method is carried out at atmospheric pressure. A method for enriching and purifying dimethyl carbonate is also described.
Abstract:
A method of stimulating the natural defense system of a plant utilizing an isolated strain of Streptomyces beta-vulgaris is described. The method includes administering to the plant an effective amount of the Streptomyces beta-vulgaris strain, or an active compound obtained from culturing the strain, which stimulates the expression of the plant defense genes such as PR1 and PDF1.2a.
Abstract:
The present invention relates to plant extracts and their use as biostimulant and biocontrol agent. More specific, the invention provides extracts of plants of the genus Helianthus which are capable of modifying root architecture and stimulate root development in plants. Hence, said extracts can be used to control plant development such as e.g. improve general root architecture, nutrient uptake and increase tolerance of plants to drought. In addition, these extracts can be used to control plant disease.
Abstract:
The present invention relates to a “safety-by-design” method for the preparation of nanoparticles, to a method for the preparation of a nanocomposite material, and to the use of a direct liquid injection device so as to prepare nanoparticles or nanocomposite materials in a “safety-by-design” process.
Abstract:
A unit (1′, 10′, 100′) for generating non-propulsive electrical power for use on board an aircraft, the unit (1′, 10′, 100′) comprising an electricity production device (3, 30) comprising a gas turbine (31) and an electricity generator (32) mechanically connected to an outlet shaft (33) of the gas turbine (31), said electricity generator (32) including output electrical connections (320) for being electrically connected to an electrical power supply network (2, 20, 200) on board an aircraft. The unit (1′, 10′, 100′) includes energy storage means (5) and regulator means (6) configured to control the speed of rotation of the gas turbine (31) as a function of the electrical power required by the on-board electrical power supply network (2, 20, 200).
Abstract:
A hydraulic conveyor for floating objects, having recirculation of a liquid composition, named conveying composition, for conveying the floating objects, includes at least one device for sanitizing the conveying composition. The sanitizing device includes: at least one device irradiating a composition, named composition to be sanitized, formed by mixing at least some of the conveying composition and an amount of a composition, named photoreactive composition, including at least one photosensitive compound that forms, under the effect of irradiation by the irradiation device, at least one compound, named active compound, transforming by chemical reaction at least one pollutant compound of the conveying composition into a non-pollutant compound; and at least two photolysis chambers mounted in series such that the composition to be sanitized can flow successively into the at least two photolysis chambers, at least one irradiation device being arranged in an inner volume of each photolysis chamber.
Abstract:
A coolant mixture including water and at least one of the compounds chosen from 1-methoxy-2-propanol and 1-ethoxy-2-propanol in the proportions of the corresponding azeotrope or in near-azeotropic proportions. Such a mixture can be used as a heat-transfer fluid in a heat-exchange device, which can be incorporated into an aircraft or spacecraft. A method for obtaining a mixture by fractional distillation is also disclosed.