Abstract

A mobile device that is able to locate itself in a topological map using a combination of visual and radio information is provided. The mobile device captures an image of its environment, detects receivable radio transmitters and builds an observation vector that defines visual words and radio words that are present at the current location of the mobile device. It then compares this observation vector to reference vectors corresponding to reference location and identifies, based on correlations between visual words and radio words, the location of the mobile device among reference locations.

IPC Classes  ?

• H04W 4/029 - Location-based management or tracking services
• H04W 4/024 - Guidance services
• H04W 4/30 - Services specially adapted for particular environments, situations or purposes
• H04W 4/33 - Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
• G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using radio waves
• H04W 64/00 - Locating users or terminals for network management purposes, e.g. mobility management

Abstract

The invention relates to a mobile device (200) that is able to locate itself in a topological map using a combination of visual and radio information. The mobile device (200) captures an image (310) of its environment, detects receivable radio transmitters (320) and builds an observation vector (330) that defines visual words (331) and radio words (332) that are present at the current location of the mobile device (200). It then compares this observation vector to reference vectors corresponding to reference location and identifies, based on correlations between visual words and radio words, the location of the mobile device (200) among reference locations.

IPC Classes  ?

• G01C 21/20 - Instruments for performing navigational calculations

Abstract

A process for manufacturing rubber crumb comprises the following steps: (a) suspending rubber granules having a given size in an autoclave (1) containing a supercritical fluid; (b) agitating the mixture for a predetermined time at constant pressure and constant temperature; (c) carrying out an isenthalpic expansion of the mixture from step (b) by spraying it through a nozzle (20).

IPC Classes  ?

• B29B 17/04 - Disintegrating plastics
• B01J 3/00 - Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matterApparatus therefor
• B29B 7/94 - Liquid charges
• B29B 7/74 - MixingKneading using other mixers or combinations of dissimilar mixers
• B29B 7/40 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
• B29B 7/16 - MixingKneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft with paddles or arms
• B29B 9/12 - Making granules characterised by structure or composition
• B29B 17/02 - Separating plastics from other materials
• B29K 21/00 - Use of unspecified rubbers as moulding material
• B29L 30/00 - Pneumatic or solid tyres or parts thereof

Abstract

The invention relates to a method for detecting a malfunction during drilling performed using a bit, the method comprising: a) comparing a first quantity (E) representative of the mechanical specific energy (MSE) with a first threshold value (Emax); b) when the first quantity is greater than the first threshold value, comparing the ratio (E/S) between the first quantity and a second quantity (S) representative of the drilling force with a second threshold value ((E/S)max); c) detecting a drilling malfunction when the ratio (E/S) between the first quantity (E) and the second quantity (S) is greater than the second threshold value ((E/S)max). The invention enables more precise detection of a drilling malfunction.

IPC Classes  ?

• E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions
• E21B 45/00 - Measuring the drilling time or rate of penetration

Abstract

The invention relates to a method for detecting a malfunction during drilling performed using a bit, the method comprising: a) comparing a first quantity (E) representative of the mechanical specific energy (MSE) with a first threshold value (Emax); b) when the first quantity is greater than the first threshold value, comparing the ratio (E/S) between the first quantity and a second quantity (S) representative of the drilling force with a second threshold value ((E/S)max); c) detecting a drilling malfunction when the ratio (E/S) between the first quantity (E) and the second quantity (S) is greater than the second threshold value ((E/S)max). The invention enables more precise detection of a drilling malfunction.

IPC Classes  ?

• E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions
• E21B 45/00 - Measuring the drilling time or rate of penetration

Abstract

In a method for recovering energy from damp exhaust gases, in which exhaust gas having a temperature from 90-130 °C and a water dew point from 50-75°C is first cooled to a temperature above the dew point in an indirect, first heat exchanger (3) and the cooled exhaust gas is then passed through a direct contact condenser (2), the condensate (6) that is formed in the direct contact condenser (2) is collected and heated in the first heat exchanger (3) by heat exchange with the exhaust gas.

IPC Classes  ?

• C04B 7/47 - Cooling

Abstract

The present invention relates to a process for manufacturing a three-dimensional article from a pulverulent substrate comprising at least a main substrate and at least an energy transferring vector, said process using at least one high energy source of a determined wavelength for melting the pulverulent substrate. The present invention relates also to a three-dimensional article manufactured from said process and to the layer manufacturing system.

IPC Classes  ?

• C04B 35/447 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on phosphates
• B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
• C04B 35/64 - Burning or sintering processes

Abstract

The present invention relates to a proton-conductive electrochemical cell (10), comprising an electrolytic membrane (13) made of a ceramic and an electrode (11, 12) made of a cermet, said electrochemical cell (10) being obtained directly by a method of co-sintering a ceramic layer, capable of forming the electrolytic membrane (13), and a cermet layer, capable of forming the electrode (11, 12), in a sintering tool at a sintering temperature of the ceramic that makes it possible to render said ceramic layer, capable of forming the electrolyte (13), gas-tight, wherein said cell (10) is characterised in that said cermet consists of the mixture of a ceramic and an electronically conductive passivatable alloy including at least 40 mol % chromium capable of forming a passive layer, the nature and the chromium content of said passivatable alloy enabling said electrochemical cell to be co-sintered with a membrane densification of more than 90% without melting said alloy.

IPC Classes  ?

• C25B 1/04 - Hydrogen or oxygen by electrolysis of water
• C25B 9/10 - Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms including an ion-exchange membrane in or on which electrode material is embedded
• C25B 11/04 - ElectrodesManufacture thereof not otherwise provided for characterised by the material
• H01M 8/12 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
• H01M 4/88 - Processes of manufacture

Abstract

The invention relates to an electrode for an electrochemical cell which exhibits good electron conductivity and good chemical conductivity, as well as good cohesion with the solid electrolyte of the electrochemical cell. To do this, this electrode is made from a ceramic, which is a perovskite doped with a lanthanide having one or more degrees of oxidation and with a complementary doping element taken from the following group: niobium, tantalum, vanadium, phosphorus, arsenic, antimony, bismuth.

IPC Classes  ?

• H01M 4/90 - Selection of catalytic material
• H01M 8/12 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte

Abstract

The invention relates to a method for converting a polycondensed elastomeric thermoplastic polymer, including a step of extruding the polycondensed elastomeric thermoplastic polymer in the presence of water. The polycondensed elastomeric thermoplastic polymer is in particular chosen from copolyether block amides, copolyethers or copolyester block urethanes, copolyether block esters and the mixtures thereof, and is preferably a copolyether block amide.

IPC Classes  ?

• B29C 47/10 - Feeding the material to the extruder
• C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances
• C08G 69/46 - Post-polymerisation treatment

Abstract

The invention relates to a seal (10) provided between two elements (4', 6) having separate thermal expansion coefficients, wherein said seal includes: a first and second metal contact portion (16a, 16b) spaced from each other in an axial stacking direction (8) orthogonal to a radial direction (20); sealed-linking means (14) provided between the portions (16a, 16b) and enabling a relative movement between the latter in the radial direction; and a first and second sliding part (24a, 24b) respectively coupled in translation to the portions (16a, 16b) in the radial direction, and stacked in such a way as to slide relative to each other in the radial direction.

IPC Classes  ?

• F16J 15/08 - Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
• H01M 8/02 - Fuel cellsManufacture thereof Details

Abstract

A method for manufacturing cubic diamond nanocrystals (10) comprising the following successive steps: (a) providing crystalline diamond powder where the maximum particle size of the powder is equal or more than 2 um and equal or less than 1 mm; (b) milling said crystalline micron diamond powder using nitrogen jet milling micronization so as to manufacture a fine powder; (c) nanomilling the fine powder of step b) using a planetary tungsten carbide ball mill; (d) acid treating the nanomilled powder of step c); (e) extracting the cubic diamond nanocrystals (10) by centrifugation. Advantageously round-shaped cubic diamond nanocrystals are manufactured.

IPC Classes  ?

• C01B 31/06 - Diamond
• C09K 11/00 - Luminescent, e.g. electroluminescent, chemiluminescent, materials

Abstract

The invention relates to a method for optimising the conductivity provided by the displacement of H+ protons and /or OH- ions in a conductive membrane made of a material permitting the insertion of steam into said membrane, wherein said method comprises the step of inserting under pressure gaseous flow containing the steam into said membrane in order to force said steam into said membrane under a certain partial pressure so as to obtained the desired conductivity at a given temperature, said partial pressure being higher than or equal to 1 bar, a drop in the operational temperature being compensated by an increase in said partial pressure in order to obtain the same desired conductivity. The invention can be used in particularly interesting applications in the fields of high-temperature water electrolysis for producing hydrogen, of the manufacture of fuel cells using hydrogen fuel, and of hydrogen separation and purification.

IPC Classes  ?

• H01M 8/12 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
• C25B 13/04 - DiaphragmsSpacing elements characterised by the material
• B01D 53/32 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by electrical effects other than those provided for in group

Abstract

The invention concerns nickel-based (Ni) alloys or superalloys, containing essentially the following elements with the following weight compositions: Cr: 11.5 to 13.5%; Co: 11.5 to 16.0%; Mo: 3.4 to 5.0%; W: 3.0 to 5.0%; Al: 2.2 to 3.2%; Ti: 3.5 to 5.0%; Nb: 0.5 to 2.0%; Hf: 0.25 to 0.35%; Zr: 0 to 0.07%; C: 0.015 to 0.030%; B: 0.01 to 0.02%; and Ni: remainder to 100%. Use for the production of turbine or compressor disks for turbomachines, according to powder metallurgy processes.

IPC Classes  ?

• C22C 19/03 - Alloys based on nickel or cobalt based on nickel
• F01D 5/02 - Blade-carrying members, e.g. rotors
• F01D 5/28 - Selecting particular materialsMeasures against erosion or corrosion