Abstract:
The invention relates to a method for reusing deciduous leaves of arborescent woody plants, which allows obtaining an extract used for a phytosanitary application, in particular the elicitation of a plant, preventive or curative treatment of a plant against a pathogenic agent, or improvement of the performance of a phytosanitary product.
Abstract:
The method for evaluating the compactness of a layer of railroad ballast near a railroad tie includes at least one step of taking at least two measurements (11,11a,11b) of the penetration resistance (Qd) of the ballast (13) near one and the same railroad tie (10), and a step of calculating the mean value (Qdmean) of these measurements (11,11a,11b) of penetration resistance.Also provided are a device for implementing such a method and a method for predicting the settlement of the ballast of a railroad track including a step of evaluating the compactness of a ballast near a railroad tie.
Abstract:
The invention relates to a sol-gel process for synthesising a luminescent material with general formulation: AxByFz:Mn, wherein A is an element of group 1, 2, 4, NR4 or a combination of elements belonging to said groups, with R═H or an alkyl chain or a combination of chains, B being an element of group 5, 6, 13, 14 and 0
Abstract:
A method for reducing the rollover risk of an automotive vehicle includes: a first step of calculating, on the basis of a plurality of signals delivered by sensors (28, 29) of the controllable suspension system, a measured quantity (TCm) as an active value (TC) of a load transfer; a second step of calculating an estimated quantity (TCe), on the basis of signals delivered by kinematic sensors (50-58) placed onboard the vehicle and a dynamic model of the vehicle, the estimated quantity being taken as an active value of the load transfer when the measured quantity is not available; a step of evaluating the rollover risk on the basis of the active value (TC) of the load transfer; and, in the event of increased rollover risk; and a step of the emission of a safety signal (S).
Abstract:
The method for evaluating the compactness of a layer of railroad ballast near a railroad tie includes at least one step of taking at least two measurements (11,11a,11b) of the penetration resistance (Qd) of the ballast (13) near one and the same railroad tie (10), and a step of calculating the mean value (Qdmean) of these measurements (11,11a,11b) of penetration resistance (Qd). Also provided are a device for implementing such a method and a method for predicting the settlement of the ballast of a railroad track including a step of evaluating the compactness of a ballast near a railroad tie.
Abstract:
The method for reducing the chromium content, in particular the hexavalent chromium content, present in a liquid effluent loaded with solid particles, called the initial effluent (1), comprises at least one reduction step (9) by the addition, to the initial effluent, of a weak organic acid (10) in an amount sufficient to reduce the hexavalent chromium present in the initial effluent into a lower valency, namely into trivalent chromium, said step being followed by a step of discharging the treated liquid effluent, called the final effluent. It comprises at least a step of collecting the solid particles present in the initial effluent, at least by settling and a reduction step (9) which is performed after adjustment (12) of the pH of the initial effluent to a pH value lower than the initial pH of the initial effluent while remaining compatible with a discharge of the final effluent at this pH value. The invention also comprises a plant for implementing the method.