Abstract:
A sol-gel process for synthesizing a luminescent material has a general formulation: AxByFz:Mn. A is an element of group 1, 2, 4, NR4 or a combination of elements belonging to those groups, with R═H or an alkyl chain or a combination of chains. B is an element of group 5, 6, 13, 14 and 0
Abstract:
A simulation platform (110) including a calculating element suitable for executing the commands of a simulation program (300), includes: a module for configuring an environment into three dimensions (310); a module for simulating a response of a sensor of the robot (320, 330); and a module for simulating a dynamic of the robot (340). The simulation program includes, in addition, a time-sequencing module (350) including: a logic clock (410) outputting the current logic time; a sequencing scheme (400) associating a set of actions to be performed with each logic time; a sub-module for calling a simulation action (440) suitable for initiating the execution of a simulation action; and a sub-module for calling a reaction action of the robot (450), suitable for initiating the execution of a response action of the robot.
Abstract:
This method of calibration comprising the reconstruction of a 3D mapping of 3D landmarks of an environment on the basis of digital images of the environment captured by the computer-based vision system (10) during the movement of the craft (2) along a trajectory. It comprises the optimization of at least one 3D mapping corresponding to a first sequence of images by considering at least one extrinsic parameter and/or at least one intrinsic parameter and/or at least one parameter of poses and/or one parameter of 3D landmarks as constant and the optimization of at least one 3D mapping corresponding to a second sequence of images, longer than the first image sequence and including the first image sequence, by considering said at least one extrinsic parameter and/or said at least one intrinsic parameter and/or said at least one parameter of poses and/or said at least one parameter of 3D landmarks as variable so as to estimate it.
Abstract:
The invention relates to method for transferring under pressure a fluid extracted from the deposit by means of a sampling vessel (5) wherein the fluid sample is maintained at the reservoir pressure or extraction pressure, as well as to the method for determining at least one thermodynamic characteristic of this fluid, particularly a method for determining phase transition envelops. The invention also refers to a method combining the implementation of the scanning thansitiometry with spectroscopic or analytical techniques, eventually in the presence of a fluid in a supercritical state. The invention similarly refers to a device for implementation of the above-referred methods.
Abstract:
A method for producing a photo-luminescent material, including the following steps: (1) producing, according to a sol-gel method, a sol and then a gel of first precursors of a first substance from the sol; (2) crushing the gel; (3) optionally, annealing the gel in order to form first particles of the first substance of which the average size is between 1 pm and 20 um; (4) producing a colloidal dispersion of second particles of a second substance, different from the first substance or identical to the first substance, of which the average size is between 5 nm and 400 nm; (5) mixing the colloidal dispersion with the sol in step (1) before forming the gel or with the first particles after step (3); and (6) annealing the mixture obtained in step (5), resulting in an increase in the compactness of the mixture, the average size of the second particles after annealing being between 100 nm and 900 nm. A photo-luminescent material including a mixture of first particles of a first photo-luminescent substance of which the average size is between 1 pm and 20 pm and second particles of a second photo-luminescent substance, different from the first photo-luminescent substance or identical to the first photo-luminescent substance, of which the average size is between 100 nm and 900 nm.
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 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).