Abstract: A method of determining the position of a detector disposed under the sea, comprising the following steps: emit N waves from N emission points, record the propagation time of said wave between each emission point and the detector; determine the P time intervals Ti, with P?1 such that, for each time interval Ti, there exist Mi emission points, Mi?3 for 1?i?P, whose propagation times lie in the time interval, determine for each time interval Ti of the circle which passes closest to the Mi points whose propagation time lies in said time interval, and then determine the position of the detector as being the barycenter of the P centers of the circles determined previously.

Abstract: The use in a bituminous composition of an organogelator molecule of the following general formula (I) is disclosed below: where: A is a hydrocarbon group which can be straight or branched, saturated or unstaurated, acyclic, cyclic or polycyclic, having 3 to 92 carbon atoms, resulting from the polymerization of lateral chains of at least one unsaturated fatty acid, X is an NH group or an oxygen atom O, R1 is a group chosen from: a straight or branched hydrocarbon group with 2 to 40 carbon atoms, optionally including one or more heteroatoms and optionally including one or more unsaturations, or an aromatic group, substituted or otherwise, R2 is a group selected among: a hydrogen atom, a straight or branched hydrocarbon group with 1 to 40 carbon atoms, including one or more heteroatoms and optionally including one or more unsaturations, or an aromatic group, substituted or otherwise; m and n are, separately from one another, an integer ranging from 1 to 4, p is an integer ranging from 0 to 4, q is an inte

Abstract: The disclosure includes a process for treating a natural gas containing carbon dioxide wherein the natural gas is separated by a cryogenic process in order to provide, on the one hand, a stream of liquid carbon dioxide, containing hydrocarbons, and, on the other hand, purified natural gas; at least one part of the natural gas is cooled in a first heat exchanger and then in a second heat exchanger before the cryogenic process and/or before a reflux to the cryogenic process; at least one part of the stream of liquid carbon dioxide is recovered in order to provide a stream of recycled carbon dioxide; the stream of recycled carbon dioxide is divided into a first portion and a second portion; the first portion is expanded and then heated in the first heat exchanger, in order to provide a first stream of heated carbon dioxide; the second portion is cooled, then at least one part of the second portion is expanded and then heated in the second heat exchanger, in order to provide a second stream of heated carbon dioxi

Abstract: Methods and devices for the real-time tracking of an object in a video stream for an augmented-reality application are disclosed herein.

Abstract: The present invention relates to a process for improving the devolatilization of polymer slurry produced in an olefin polymerization reactor. The process is characterized in that it involves an adjustment of the temperature of the interior surface of the flash line for periodically transferring polymer slurry from the polymerization reactor to a downstream processing unit. In particular, in accordance with the present process, the temperature of the interior surface of the flash line is adjusted to a temperature which is equal to or higher than the softening temperature of the polymer passing through said flash line whereby said temperature is higher in a first half of the length of the flash line than in the remaining length of the flash line.

Abstract: Methods and devices for the real-time tracking of an object in a video stream for an augmented-reality application are disclosed herein.

Abstract: The present invention discloses the use in rotomolding or slush molding applications of a composition comprising a polyolefin, a processing aid and optionally a UV-stabilizer.

Abstract: Methods and devices for the real-time tracking of one or more objects of a real scene in a video stream for an augmented-reality application are disclosed herein.

Abstract: A process is disclosed for reducing the content of polycyclic aromatic hydrocarbons or PAHs in aromatic extracts including oxidizing the PAHs in the presence of a hemoprotein via an oxidizing compound, wherein the aromatic extract is brought into contact with the oxidizing agent in a non-reactive organic solvent, then is brought into contact with the immobilized or supported hemoprotein.

Abstract: A total knee arthroplasty includes a symmetric femoral prosthesis for articulating with a tibial prosthesis in the left or right leg of a patient. The symmetric femoral prosthesis includes an anterior flange having a symmetric and upwardly diverging, generally V-shaped, double Q-angle trochlear groove formed in an anterior side thereof for accommodating natural Q-angle tracking of a natural or prosthetic patella when the symmetric femoral component is surgically implanted in either the left or right leg of a patient. In a preferred form, the double Q-angle trochlear groove is formed with an angle of + or ? about 10°, for a total groove angle of about 20°.

Abstract: The present invention relates to a process for improving the polymerization of ethylene and one or more optional co-monomer(s) in a polymerization loop reactor characterized in that said process comprises the step of controlling the hydrogen/monomer ratio along the path of the reactor by multiple, spatially separated, feeding of hydrogen along the path of the loop reactor. In particular, the invention provides a process for controlling, and preferably narrowing, the molecular weight distribution of the produced polymer particles. In another aspect, the invention relates to a polymerization loop reactor suitable for the polymerization process of ethylene and an optional olefin co-monomer, wherein the molecular weight distribution of the produced ethylene polymer can be controlled.

Abstract: Use of a metallocene compound of general formula Ind2R?MQ2 as a component of a catalyst system in producing polyethylene, wherein each Ind is the same or different and is indenyl or substituted indenyl; R? is a bridge which comprises a C1 to C4 alkylene radical, a dialkyl germanium or silicon or siloxane, alkyl phosphine or amine, which bridge is substituted or unsubstituted, M is a Group IV metal or vanadium and each Q is hydrocarbyl having 1 to 20 carbon atoms or halogen; and the ratio of meso to racemic forms of the metallocene in the catalyst system is at least 1:3. The metallocene may be supported. The ethylene may be polymerized in a reaction medium that is substantially free of any external comonomer, with comonomer being formed in situ. The produced polyethylene may have long chain branching. The produced polyethylene may be atactic.

Abstract: A process is described for obtaining a chemical blend of a polyolefin with a poly(hydroxy carboxylic acid) by mixing poly(hydroxy carboxylic acid) with at least one polyolefin in the presence of a compatibilising compound having at least one polymerisable double bond and at least one electrophilic functional group. The invention also relates to the chemical blend obtainable according to this process, as well as the use of the compatibilising compound to obtain chemical blends of polyolefin with poly(hydroxy carboxylic acid).

Abstract: The invention relates to a heating device for a device for transporting a fluid containing a hydrocarbon. The heating device comprises a rigid structure extending between two lateral walls, forming a space between the lateral walls. A flexible membrane comprising heating means extends into the space in order to define, in said space, an inner cavity and an outer cavity. Pumping means designed to supply a fluid to the inner cavity, remove said fluid therefrom, or keep said fluid therein, in order to bring the membrane into contact with the transport device so at to heat same.

Abstract: The invention relates to a process for preparing polyolefin in a loop reactor. The polymer is prepared by polymerizing olefin monomers in the presence of a catalyst to produce a polyolefin slurry while pumping said slurry through said loop reactor by means of a pump. The present process is characterized in that the catalyst is fed in the loop reactor at a distance to the pump. The invention allows production of the polymer with advantageous properties while leading to fewer blockages of the reactor.

Abstract: The invention relates to a device for loading solid particles into a vessel, comprising: a means for supplying solid particles to be distributed, said means pouring said solid particles into a supply pipe (1), a movable assembly (2) arranged below the supply pipe (1), comprising a central shaft (3) and deflector elements (5) which are integral in rotation with said shaft and arranged around the shaft on multiple vertical tiers (E1-E4) and are articulated about it in such a way that they can lift up, a supply pipe (1) surrounding at least partially said central shaft and comprising at least one orifice (4) for discharging the solid particles which is arranged on a side and/or horizontal wall, this device being characterized in that the movable assembly (2) is designed in such a way as to allow adjustment of the position of the deflector elements (5) on the central shaft (3) in order to vary its permeability to the solid particles.

Abstract: The present disclosure relates to a ventilation pad, and more particularly, to a ventilation pad for a toddler carrier, which is installed inside a toddler carrier such as a baby sling, wherein a three-dimensional mesh pad having a sufficient predetermined thickness is inserted between a mother and a baby, thereby alleviating heat and preventing discomfort when using a baby sling or carrier during the summer months.

Abstract: The invention relates to a line for transporting a hydrocarbon. The line includes a hollow inner tube extending in a longitudinal direction for transporting the fluid in the inner tube and having an electrically insulating outer surface. A heating layer is arranged on the inner tube and comprises carbon fibres embedded in a polymer material. A heat insulation layer is arranged around the heating layer. An outer tube is arranged around the heat insulation layer. The outer tube is designed to resist an outer pressure at least higher than 100 bar. Spacing means hold the outer tube at a distance from the inner tube in a fixed manner. Power supply means feed an electric current to the heating layer in order to heat the inner tube.

Abstract: A process to make light olefins from an oxygen-containing, halogenide-containing or sulphur-containing organic feedstock is disclosed. The process includes contacting the feedstock in a primary reactor with a catalyst that includes a metalloaluminophosphate (MeAPO) molecular sieve to form a first reactor effluent that includes a light olefins and a heavy hydrocarbon fraction. The process further includes separating the light olefins from the heavy hydrocarbon fraction and contacting the heavy hydrocarbon fraction in a second reactor to convert the heavy hydrocarbon fraction to light olefins. The MeAPO molecular sieve is expressed by the formula HxMeyAlzPkO2 where y+z+k=1, x is less than or equal to y, y is from 0.0008 to 0.4, z is from 0.25 to 0.67, and k is from 0.2 to 0.67. The MeAPO molecular sieve has a predominantly plate crystal morphology where the width divided by the thickness is greater than or equal to 10.

Abstract: A method and system for conciliating hydrocarbon reservoir model data. In one implementation, a set of local permeability values of a reservoir and an apparent permeability value of the reservoir are provided. A power value is numerically calculated from a mean power formula that relates the apparent permeability value of the reservoir to the local permeability values of the set via the power. The calculated power value is compared with a reference value. Depending on the outcome of the comparison, the set of local permeability values is modified.