Abstract: An ion propulsion device including emission modules in an emission plane, each module having an insulating support, an emission electrode on the support, and a conductive liquid with a microfluidic channel depositing conductive liquid on the electrode; an extraction electrode common to the emission modules and facing the modules; and a control unit, in which each module is configured to emit an ion beam when an electric field is applied to the liquid; each control unit controls an ion emission current emitted by applying a potential difference between each emission electrode and the extraction electrode; the emission electrodes are spaced apart by a linear distance that is greater than a distance between two adjacent emission electrodes separated by an empty space; and a length of the insulating support between the electrodes is greater than a propagation distance of an electric leakage current by charge jumping along the support between the electrodes.

Abstract: A method for producing a solid body of glass is described. The method comprises providing a polymerisable composition, curing the polymerisable composition to obtain a cured body, subjecting the cured body to thermal debinding to substantially remove the organic components in the cured body, and subjecting the cured body to sintering to obtain a solid body of silica glass. The polymerisable composition one or more at least partially organic polymerisable compound(s) which form a liquid composition at operating temperature and a solid source of silica as colloidal silica particles or silica glass micro-/nanoparticles dispersed in the liquid composition. The one or more at least partially organic polymerisable compounds comprises at least one organosilicon compound as a second source of silica that is liquid or solubilisable in the liquid composition at operating temperature to thereby increase the silica loading of the cured body prior to sintering.

Abstract: To provide a drone with an airbag that can eliminate the danger of the drone injuring a person in the event of the drone crashing mid-flight including during takeoff and landing. The present invention is equipped with an airbag 3 for reducing the impact of a crashed drone 2 colliding with a person. Prior to the drone 2 taking off, the airbag 3 can be inflated by being supplied with gas. Once the drone 2 has taken off and reached a required altitude, the airbag 3 deflates due to the gas being exhausted. When the drone 2 is mid-flight and in danger of crashing, the airbag 2 can be inflated instantly by being supplied with gas. Prior to the drone 2 landing, the airbag 3 can be inflated by being supplied with gas.

Abstract: An injection and mixing device comprises a casing having an exhaust inlet and an exhaust outlet, the casing internally defining a passage for exhaust gases from the exhaust inlet to the exhaust outlet. The exhaust inlet opens into an inlet region of the passage. The injection and mixing device further includes an injector of a liquid comprising a nitrogen oxide reducing agent or a precursor of such a reducing agent. A deflector is housed within the casing and defines in the passage a first passage connecting the inlet region to the exhaust outlet, in which the exhaust gases flow at a first average velocity, and a second passage connecting the inlet region to the exhaust outlet, in which the exhaust gases flow at a second average velocity lower than the first average velocity, The injector injects liquid into the second passage.

Abstract: A vehicle seat assembly comprising: a seat with: a seating portion having a front edge and a rear edge, means for connecting the seating portion to the floor of the vehicle, a backrest, rotatable relative to the seating portion about a first transverse axis, a control device comprising a detection means, comprising a signal transmitter and a receiver, and wherein the signal transmitter is configured so that the transmitted signal passes through a determined area for detecting an obstacle near the seat, the transmitter and the receiver being positioned so as to be able to detect an obstacle in the path of the seating portion and/or of the backrest when changing the position of the seating portion and/or of the backrest.

Abstract: The present disclosure relates to the technical field of TiAl intermetallic foundry alloys. More particularly, it relates to such an alloy comprising: 44?Al?47 at. %; 0<Zr<2 at. %; 1?W?2 at. %; and only one of the following elements: 0.5?V?2 at. %; 0.5?Cr?2 at. %; 0<Nb<4 at. %.

Abstract: Cleaning device for projecting a cleaning fluid toward a surface of an optical sensor, including a hollow body with an intake port for the cleaning fluid and an ejection nozzle for ejecting the cleaning fluid in the form of a jet, the hollow body being pierced with a conduit for distributing the cleaning fluid, and a deflection element arranged downstream of the ejection nozzle and configured to obstruct the jet of fluid ejected by the ejection nozzle in such a way as to modify the orientation of the jet of fluid with respect to the surface to be cleaned. The deflection element is adapted to move, depending on the pressure to which it is subjected by the jet of fluid, between a near position, in which the deflection element is next to the ejection nozzle, and a moved-away position, in which the deflection element is away from the ejection nozzle.

Abstract: A system (100) for recovering recycled polyethylene plastic film material is disclosed, comprising a first size reduction station (110) for forming a coarse fraction, a separation station (120) for forming a film fraction, a contaminant removal station (130) for removing non-polyethylene materials from the film fraction, and a baling station (150) for forming a bale (20) of the plastic film material and wrapping the bale in a plastic film. A corresponding method and a bale obtained by such a method are also disclosed.

Abstract: An optical imaging system including a transmitter unit and a receiver unit. The transmitter unit includes a light-emitting source generating at least one first optical beam at a given wavelength; a light modulator, associated with a first field of view, detects the at least one first optical beam in a first deflection direction within the first field of view to generate a first deflected beam, by applying an external control signal; and a transmissive deflecting device, associated with a second field of view and including a two-dimensional arrangement of deflecting cells, each of the deflecting cells being reachable by the first deflected beam and being associated with an elementary field of view, the transmissive deflecting device generating at least one second deflected beam from the first deflected beam using an operational deflecting cell of the plurality of deflecting cells that receives the first deflected beam.

Abstract: A method for operating a social club within an online discussion forum. The method includes receiving at least one first parameter for the social club, establishing, at a first time, the social club with a configuration based on the at least one first parameter, determining, at a second time, a member count of the social club, comparing the member count to at least one threshold, automatically selecting at least one second parameter for the social club based on a result of the comparison, and updating the configuration of the social club based on the at least one second parameter.

Abstract: Described herein are techniques in which a computer system guides a group of participants through a session (e.g., a learning session) in real time. The techniques remove a need for a leader (e.g., a course instructor) to be present in order to guide the participants (e.g., students) through the session. The techniques allow each participant to join a session using a respective computing device, and interact with shared content through one or more graphical user interfaces (GUIs). The techniques implement the shared content as a sequence of states (e.g., steps), and guide the participants through the sequence of states. The techniques allow the computer system to replace a human in guiding users through a session (e.g., a learning session). By removing the need for human guidance through a session, the techniques exponentially increase the scale at which educational experiences (e.g., for a remote learning session) can be distributed and used.

Abstract: A proposing an improvement in an installation environment of a weighing apparatus is made by including (a) a step of acquiring, weighed data of an object (7) to be weighed from a weighing sensor (13) together with time information, (b) a step of acquiring, environmental data together with time information, (c) a step of checking, with respect to the weighed data and the environmental data, whether an amount of change of the data per unit time or an average value of the data is less than or not less than a threshold with reference to a threshold database (191) and determining influence on the apparatus, and (d) a step of making a proposal on the installation environment for each result of the determination with reference to an improvement proposal database (193).

Abstract: A system and a method for a crowd surveillance device comprising a multi-sensor system connected to a processing device, wherein the processing device comprises an image fusion module for receiving images from the multi-sensor system, transforming and fusing images into a fused image; an image analytic module for extracting each individual target and identifying any conceal object on the individual target, an alert triggering module for triggering an alert in the event a conceal object on the individual target is identified.

Abstract: A cosmetic active principle including a hydrolysate of Pichia minuta comprising at least peptides. Additionally, the use of the cosmetic active principle including a hydrolysate of Pichia minuta comprising at least peptides for controlling hair loss and stimulating regrowth. Also, compositions containing same and a cosmetic hair treatment method.

Abstract: A slide for a vehicle seat, comprising a female rail having at least one vertical side wall, a male rail also having at least one vertical side wall, mounted to slide relative to the female rail, the female rail surrounding the male rail with the vertical side wall of the female rail facing the vertical side wall of the male rail, a position sensor comprising a means for measuring the surrounding magnetic field fixed to the vertical side wall of the male rail by means of a spring member, and arranged between the substantially planar wall of the male rail and the substantially planar wall of the female rail and oriented towards the substantially planar wall of the female rail.

Abstract: An indirect heat pump system includes a refrigerant unit, a cold water handling unit, and a hot water handling unit. A cold water inlet of the cold water handling unit communicates with an evaporator; a cold water outlet of the cold water handling unit communicates with the evaporator; the cold water handling unit is connected to a plurality of loads in parallel. A hot water inlet of the hot water handling unit communicates with a condenser; a hot water outlet of the hot water handling unit communicates with the condenser; the hot water handling unit is connected to the loads in parallel; and a plurality of hot water two-way valves are disposed in pipelines of the hot water handling unit and are configured to control the on and off of the hot water in the loads.