Abrégé

A method analyzes global average grayscale change of tundish ink tracing experiment. The method includes the following steps: building a water model based on a prototype size and production parameters of a tundish; carrying out experiments by using the water model to obtain a video file of the ink tracing; processing the video file and extracting a characteristic curve of a global average grayscale changing with the time; analyzing the characteristic curve, and extracting a global peak grayscale time, a global tracer residual volume and a global emptying time as indicators for evaluating a tundish structure and flow characteristics of the tundish structure.

Classes IPC  ?

• G06T 7/246 - Analyse du mouvement utilisant des procédés basés sur les caractéristiques, p. ex. le suivi des coins ou des segments
• G01N 11/02 - Recherche des propriétés d'écoulement des matériaux, p. ex. la viscosité, la plasticitéAnalyse des matériaux en déterminant les propriétés d'écoulement en mesurant l'écoulement du matériau
• G06T 7/62 - Analyse des attributs géométriques de la superficie, du périmètre, du diamètre ou du volume
• G06T 7/64 - Analyse des attributs géométriques de la convexité ou de la concavité
• G06T 7/90 - Détermination de caractéristiques de couleur

Abrégé

An FH40-HD50 high-ductility ship plate steel having a multiphase structure, and a preparation method therefor, belonging to the field of ship plate steel manufacturing. The chemical composition of the ship plate steel is as follows: C, Mn, Si, Ni, Nb, Alt, S, and P, the rest being Fe and unavoidable impurity elements; the FH40-HD50 high-ductility ship plate steel has a composition design with low-C-and-Nb microalloying as a core, and does not contain metal elements such as Cu, V, and Ti. The preparation method mainly comprises procedures such as smelting, continuous casting, hot rolling, and cooling; on-line optimization of a TMCP process involving three stages of cooling, i.e. "relaxation + ultrafast cooling + air cooling", enables control of a ferrite + pearlite + bainite multiphase structure, produces FH40-HD50 high-ductility ship plate steel having far higher plasticity and toughness than traditional high-strength ship plate steel, and improves the collision resistance of large ships without changing the structural design of the ships.

Classes IPC  ?

• C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium

Abrégé

A multi-source solid waste recycling method based on composition design for calcium-silicon-aluminum-magnesium oxide includes collecting multi-source solid waste composition data; calculating and designing compositions of calcium oxide, silicon oxide, aluminum oxide and magnesium oxide units to obtain an inorganic non-metallic raw material with a target composition; and melts the raw material into slag, and uses carbon, metallic aluminum, aluminum nitride, aluminum carbide, silicon nitride and silicon carbide in the multi-source solid waste as reducing agents. The slag provides a high-temperature homogeneous reaction environment and serves as a “solvent” for reactants, the reducing agents reduce valuable metals in the slag to obtain an alloy, thereby achieving recovery of the valuable metals, and the slag is used for the inorganic non-metallic material in a high-value mode.

Classes IPC  ?

• C22C 1/02 - Fabrication des alliages non ferreux par fusion
• C22B 5/10 - Procédés généraux de réduction appliqués aux métaux par voie sèche par des agents réducteurs carbonés solides

Abrégé

33.

Classes IPC  ?

• B01J 23/34 - Manganèse
• B01J 29/00 - Catalyseurs contenant des tamis moléculaires
• B01J 35/02 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général solides
• B01J 29/48 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type pentasil, p. ex. types ZSM-5, ZSM-8 ou ZSM-11 contenant de l'arsenic, de l'antimoine, du bismuth, du vanadium, du niobium, du tantale, du polonium, du chrome, du molybdène, du tungstène, du manganèse, du technétium ou du rhénium
• B01J 23/889 - Manganèse, technétium ou rhénium
• B01D 53/86 - Procédés catalytiques
• B01D 53/66 - Ozone

Abrégé

The present disclosure provides an intelligent decision reasoning method for type-based diagnosis and treatment of a cardiovascular disease, a device, and a product, and relates to the medical field. The present disclosure adopts a risk factor mining model of a cardiovascular disease and a drug attribute association mining model of the cardiovascular disease to extract relevant information from cardiovascular data, achieving precise prediction of a fine-grained cardiovascular disease type and effectively promoting precision medicine. Based on a clinical diagnostic dataset and a clinical symptom diagnosis knowledge system of the cardiovascular disease, a type-based auxiliary diagnosis model of the cardiovascular disease is constructed, and intelligent decision reasoning is performed to obtain an association rule. This achieves efficient integration of type-based decision support of the cardiovascular disease and a medical convalescence knowledge base of the cardiovascular disease, and enhances quality of a cardiovascular medical convalescence association rule set.

Classes IPC  ?

• G16H 50/20 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour le diagnostic assisté par ordinateur, p. ex. basé sur des systèmes experts médicaux
• G16H 10/60 - TIC spécialement adaptées au maniement ou au traitement des données médicales ou de soins de santé relatives aux patients pour des données spécifiques de patients, p. ex. pour des dossiers électroniques de patients
• G16H 20/10 - TIC spécialement adaptées aux thérapies ou aux plans d’amélioration de la santé, p. ex. pour manier les prescriptions, orienter la thérapie ou surveiller l’observance par les patients concernant des médicaments ou des médications, p. ex. pour s’assurer de l’administration correcte aux patients
• G16H 50/70 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicalesTIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour extraire des données médicales, p. ex. pour analyser les cas antérieurs d’autres patients
• G16H 70/40 - TIC spécialement adaptées au maniement ou au traitement de références médicales concernant des médicaments, p. ex. leurs effets secondaires ou leur usage prévu

Abrégé

x are improved by adjusting a content of Ce.

Classes IPC  ?

• C22C 30/00 - Alliages contenant moins de 50% en poids de chaque constituant
• A01N 59/16 - Métaux lourdsLeurs composés
• A01P 1/00 - DésinfectantsComposés antimicrobiens ou leurs mélanges
• C22C 1/02 - Fabrication des alliages non ferreux par fusion

Abrégé

A method for predicting floating times of inclusions during refinements of molten steel includes: predicting a macroscopic multiphase flow field of the molten steel refining, injecting the inclusions into the multiphase flow field uniformly and randomly, determining a capture condition of the inclusions, calculating motion trajectories of the inclusions injected into the multiphase flow field, outputting captured inclusions' information through comparing the motion trajectory of the inclusion and the capture condition, and obtaining an average floating time, a relationship between a removal rate and the floating time, and the complete floating time through analyzing the captured inclusions' information. This method not only considers physical properties and sizes of the inclusions themselves but is also closely related to the refining process and the flow field in the refinement, and the results can provide theoretical basis for quantitative evaluation and optimization of the refining process and its parameters.

Classes IPC  ?

• G06F 30/28 - Optimisation, vérification ou simulation de l’objet conçu utilisant la dynamique des fluides, p. ex. les équations de Navier-Stokes ou la dynamique des fluides numérique [DFN]
• G06F 111/10 - Modélisation numérique
• G06F 113/08 - Fluides

Abrégé

This invention pertains to corrosion inhibition, specifically involving a Platanus acerifolia leaf extract inhibitor. The extract serves to inhibit corrosion of copper in sulfuric acid or steel in hydrochloric acid. In sulfuric acid, inhibition efficiency reaches 96.7%, while in hydrochloric acid, it achieves 93.1% efficiency on Q235 steel. This Platanus acerifolia leaf extract inhibitor exhibits robust corrosion inhibition on copper in sulfuric acid and steel in hydrochloric acid, offering comprehensive anti-corrosion performance suitable for various materials.

Classes IPC  ?

• C23F 11/173 - Composés macromoléculaires
• C23F 11/12 - Composés contenant de l'oxygène

Abrégé

Disclosed is a method for preparing a directionally solidified TiAl alloy, including: (1) melting and casting a master alloy to obtain a TiAl alloy ingot; (2) processing the TiAl alloy ingot into a sample rod, and placing the sample rod into a refractory metal crucible and then assembling the refractory metal crucible to a directional solidification furnace; (3) vacuumizing the directional solidification furnace, and heating the directional solidification furnace to gradually raise a temperature to exceed a melting point of the sample rod, and conducting heat preservation to melt the sample rod uniformly to obtain a molten TiAl alloy; and (4) directionally pulling the molten TiAl alloy after the heat preservation to allow directional growth to a growth length, stopping the directionally pulling, and taking out an obtained sample to obtain a test rod of the directionally solidified TiAl.

Classes IPC  ?

• C30B 29/52 - Alliages
• C30B 15/10 - Creusets ou récipients pour soutenir le bain fondu
• C30B 15/14 - Chauffage du bain fondu ou du matériau cristallisé
• C30B 15/20 - Commande ou régulation
• C30B 29/66 - Cristaux de forme géométrique complexe, p. ex. tubes, cylindres

Abrégé

The application provides a method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma, including: using a mixture of hydrogen rich gas and argon gas to generate hydrogen plasma for denitrification of molten steel during at least one of arc furnace smelting, ladle refining, VOD refining, and RH refining. The method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma provided in the application can effectively remove nitrogen from the molten steel by spraying a mixture of argon gas and hydrogen rich gas into the molten steel through a hollow electrode and plasma torch, reducing electrode consumption and electricity consumption per ton steel, and also reducing arc radiation heat loss, improving heating rate, thereby shortening smelting time and reducing production costs.

Classes IPC  ?

• C21C 7/072 - Traitement par des gaz
• C21C 5/52 - Fabrication de l'acier au four électrique
• C21C 7/00 - Traitement à l'état liquide des alliages ferreux, p. ex. des aciers, non couverts par les groupes
• C21C 7/06 - Élimination des impuretés par addition d'agent traitant de l'oxygène, p. ex. calmer
• C21C 7/064 - DéphosphorationDésulfuration
• C21C 7/10 - Travail sous vide

Abrégé

Disclosed are an integrated method and an integrated system for resource recovery of source-separated urine. The integrated method for resource recovery of the source-separated urine includes: mixing the source-separated urine with an alkali metal peroxysulphate to obtain a mixture, and subjecting the mixture to evaporation-concentration by heating to obtain condensed water and a liquid compound fertilizer, where the liquid compound fertilizer includes urea, a phosphorus salt, and a potassium salt.

Classes IPC  ?

• C05F 3/00 - Engrais fabriqués à partir des excréments humains ou animaux, y compris le fumier
• C05F 17/60 - Chauffage ou refroidissement pendant le traitement

Abrégé

The present invention belongs to the technical field of wastewater treatment, and specifically relates to a source-separated-urine integrated resource recovery method and system. The source-separated-urine integrated resource recovery method provided by the present invention comprises: mixing source-separated urine with a persulfate alkali metal salt, heating for evaporation and concentration, and obtaining condensate water and a composite liquid fertilizer; the composite liquid fertilizer containing urea, phosphorus salt, and potassium salt. The present invention uses a persulfate alkali metal salt as an additional treatment agent for source-separated urine, thereby achieving treatment integrating urine stabilization, detoxification and resource utilization; moreover, the recovery process is short, and the method is simple and suitable for industrial application. Results in the embodiments show that the method provided by the present invention achieves a composite liquid fertilizer having 99.99% or higher efficiency of inactivating pathogenic microorganisms, an antibiotic removal rate of 99% or above, and a water recovery rate of 95% or above.

Classes IPC  ?

• C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
• C02F 1/50 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition ou emploi d'un germicide, ou par traitement oligodynamique
• C02F 1/04 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par chauffage par distillation ou évaporation
• C05G 1/00 - Mélanges d'engrais faisant partie individuellement de différentes sous-classes de
• C05G 5/20 - Engrais liquides
• C05G 3/40 - Mélanges d'un ou plusieurs engrais avec des additifs n'ayant pas une activité spécifique d'engrais pour influer sur le dosage de l’engrais ou sur sa vitesse de libérationMélanges d'un ou plusieurs engrais avec des additifs n'ayant pas une activité spécifique d'engrais pour influer sur la solubilité
• C05G 3/90 - Mélanges d'un ou plusieurs engrais avec des additifs n'ayant pas une activité spécifique d'engrais pour influer sur la nitrification des composés d’ammonium ou de l’urée dans le sol

Abrégé

A method for controlling a temperature of a molten steel during ladle furnace (LF) refining based on interpretable machine learning includes: acquiring process data of the LF refining and a target temperature of the molten steel during the LF refining; acquiring a prediction model for the temperature of the molten steel during the LF refining; calculating a base value for prediction of the temperature of the molten steel, SHapley Additive explanations (SHAP) values of key factor parameters, and a relationship trend between the key factor parameters and the SHAP values; and calculating a predicted value of the temperature of the molten steel during the LF refining, and acquiring a control result for the temperature of the molten steel during the LF refining according to the relationship trend and the predicted value of the temperature of the molten steel during the LF refining.

Classes IPC  ?

• C21C 5/30 - Réglage et commande du soufflage
• C21C 7/00 - Traitement à l'état liquide des alliages ferreux, p. ex. des aciers, non couverts par les groupes

Abrégé

The present invention relates to a low-temperature working medium pair and the use thereof. The low-temperature working medium pair comprises an absorbent and a refrigerant; the absorbent is used for absorbing the refrigerant and releasing heat; the refrigerant is used for absorbing heat and evaporating; the absorbent comprises an organic absorbent, an ionic liquid absorbent, or a composite absorbent; and the refrigerant is HFO-1233zd(Z) or a composite refrigerant comprising said component. The low-temperature working medium pair is used for a waste heat utilization system for fuel cells.

Classes IPC  ?

• F25B 15/02 - Machines, installations ou systèmes à sorption, à marche continue, p. ex. à absorption sans gaz inerte
• F25B 27/02 - Machines, installations ou systèmes utilisant des sources d'énergie particulières utilisant la chaleur perdue, p. ex. chaleur dégagée par des moteurs à combustion interne
• H01M 8/04007 - Dispositions auxiliaires, p. ex. pour la commande de la pression ou pour la circulation des fluides relatives à l’échange de chaleur
• C09K 5/04 - Substances qui subissent un changement d'état physique lors de leur utilisation le changement d'état se faisant par passage de l'état liquide à l'état vapeur ou vice versa
• F25B 30/04 - Pompes à chaleur du type à sorption
• F25B 1/00 - Machines, installations ou systèmes à compression à cycle irréversible
• F25B 9/00 - Machines, installations ou systèmes à compression dans lesquels le fluide frigorigène est l'air ou un autre gaz à point d'ébullition peu élevé

Abrégé

A thin metal strip continuous casting method using momentum flow distribution, comprising the steps of: adjusting the position of a flow distribution device (2), and starting a double-roller thin strip continuous casting apparatus; molten metal (3) forming a uniform sheet-shaped molten metal flow (4) having an initial momentum after the molten metal (3) passes through the flow distribution device; the sheet-shaped molten metal flow entering a molten pool (5) at a superheat degree of 50-100° C. and an initial velocity of 0.5-2 m/s, wherein the flow distribution device is spaced apart from the molten pool; under the action of the initial velocity of the molten metal and in the molten pool, forming a whirlpool, which is adjacent to surfaces of two cooling rollers and has a momentum stirring action; and completing the solidification of the molten metal under the momentum stirring action of the whirlpool along with the rotation of the two cooling rollers. In the method, a whirlpool, which is adjacent to surfaces of cooling rollers and has a momentum stirring action, is formed in a molten pool by means of the kinetic energy of molten metal, such that equiaxed crystals can be prepared when a superheat degree is as high as 50-100° C., and the proportion of equiaxed crystals can be increased to 100%, thereby refining crystal grains and alleviating segregation.

Classes IPC  ?

• B22D 11/103 - Répartition du métal liquide, p. ex. en utilisant des goulottes, des flotteurs, des distributeurs
• B22D 11/06 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules dont les parois se déplacent, p. ex. entre des rouleaux, des plaques, des courroies, des chenilles

Abrégé

Disclosed in the present invention is a method applied to a promotion mode of heavy metal pollution prevention and control technology integration for a copper dressing-metallurgy slag field and an affected area. The method comprises: classification of heavy metal pollution sources and environmental pollution safety risks of a dressing-metallurgy slag field and an affected area, treatment technology screening, comprehensive prevention and control technology integration, and mode construction. According to the present invention, field investigation and heavy metal pollution index monitoring are carried out on the surrounding environmental pollution condition of the Southwest nonferrous metal dressing-metallurgy slag field source and the affected area, the environmental pollution safety risks of the dressing-metallurgy slag field and the affected area are classified, and technical screening is carried out on different heavy metal pollution feature areas, so that the heavy metal pollution in the dressing-metallurgy slag field and the affected area is effectively treated, and the integrated dressing-metallurgy slag field and affected area heavy metal pollution prevention and control technology is constructed, and is verified and promoted by means of technical demonstration of a typical copper dressing-metallurgy slag field and affected area.

Classes IPC  ?

• G06Q 10/0639 - Analyse des performances des employésAnalyse des performances des opérations d’une entreprise ou d’une organisation

Abrégé

Disclosed in the present invention is a method for heavy metal pollution prevention technique integration applied to a historical lead-zinc smelting slag field and an affected area. The method comprises: heavy-metal environmental pollution safety risk grading for a smelting slag field and an affected area, treatment technique screening, and comprehensive prevention technique integration. In the present invention, field survey and heavy-metal pollution index monitoring are performed on pollution situations of the surroundings of a southwest lead-zinc smelting slag field source and an affected area, classification is performed on the smelting slag field and the affected area, techniques are screened regarding different heavy-metal pollution characteristic areas, and a verification experiment is performed, such that heavy-metal pollution of the smelting slag field and the affected area is effectively treated, an integrated heavy-metal pollution prevention technique for the smelting slag field and the affected area is constructed, and verification and popularization are performed by means of the technical demonstration of a typical lead-zinc smelting slag field and affected area.

Classes IPC  ?

• G06Q 50/26 - Services gouvernementaux ou services publics
• G06Q 10/0639 - Analyse des performances des employésAnalyse des performances des opérations d’une entreprise ou d’une organisation
• G06Q 10/0635 - Analyse des risques liés aux activités d’entreprises ou d’organisations

Abrégé

A machine learning-based multi-objective optimization method for a route for synthesis of MOFs. The method comprises: collecting a synthesis condition for preparing Ce-UiO-66, evaluating defect content and thermal stability by means of a thermogravimetric analysis curve, and using same as an initial data set; randomly dividing the data set into a training set and a testing set, respectively modeling each performance of the Ce-UiO-66 using eight algorithms, and screening representative models used for for prediction of each performance; calculating an objective achievement probability (PA) value of each performance in a synthesis space, and expanding same to a multi-objective evaluation factor; preparing a Ce-UiO-66 material; performing a characterization test on the obtained material, and if test data does not satisfy a requirement, updating the data set and the proxy model. Being based on reliable experimental data and machine learning has the advantages of low cost, short period, and the like for optimization of catalysis and stability of MOFs, and the method can be expanded to the design of synthesis routes for other materials.

Classes IPC  ?

• G16C 60/00 - Science informatique des matériaux, c.-à-d. TIC spécialement adaptées à la recherche des propriétés physiques ou chimiques de matériaux ou de phénomènes associés à leur conception, synthèse, traitement, caractérisation ou utilisation
• G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p. ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle
• G16C 20/70 - Apprentissage automatique, exploration de données ou chimiométrie
• G06F 111/06 - Optimisation multi-objectif, p. ex. optimisation de Pareto utilisant le recuit simulé, les algorithmes de colonies de fourmis ou les algorithmes génétiques

Abrégé

Solid-liquid separation equipment includes a pulverizing and drying device. The pulverizing and drying device includes a pulverizing device and a drying device connected with one another. The pulverizing device has a pulverizing shell, an inlet, a main shaft and impellers, and the main shaft and the impellers are arranged in the pulverizing shell. The impellers are configured to rotate around the main shaft. The inlet forms a sidewall of the pulverizing shell and is intersected with the main shaft or an extension line of the main shaft. A gap is defined between an outer peripheral end of the impeller and the wall of the pulverizing shell. The sludge is efficiently and deeply dried in a condition with no phase change. The sludge is graded, pulverized and dried. During the pulverizing and drying process, the water is liquefied and centrifugally separated, and the water is not completely phase-transformed and removed.

Classes IPC  ?

• B02C 23/16 - Séparation ou triage de matériaux, associé au broyage ou à la désagrégation au moyen d'un séparateur délimitant la fin de la zone de broyage ou de désagrégation, p. ex. au moyen d'un tamis empêchant la sortie des matériaux hors dimension
• B02C 18/16 - Désagrégation par couteaux ou autres organes coupants ou déchirants qui transforment le matériau en fragmentsHachoirs ou appareils similaires utilisant des vis ou analogue à couteaux rotatifs Parties constitutives

Abrégé

The present invention discloses a multi-mode air supply terminal and method for guaranteeing health and comfort of a person, and relates to the technical field of indoor ventilation. The multi-mode air supply terminal includes: a shell body (2) as well as a pore-plate air supply mechanism and an air-curtain air supply mechanism which are installed inside the shell body; the shell body is connected with one end of an air supply branch pipe), the air-curtain air supply mechanism is arranged around the pore-plate air supply mechanism, and an inner wall of the shell body (2) forms an empty cavity (6) with the pore-plate air supply mechanism and the air-curtain air supply mechanism; and the pore-plate air supply mechanism and the air-curtain air supply mechanism are respectively used for controlling opening/closing of a pore-plate air supply port and an air-curtain air supply port to form a plurality of air supply modes.

Classes IPC  ?

• F24F 9/00 - Utilisation de courants d'air comme écrans, p. ex. rideaux d'air
• F24F 11/00 - Aménagements de commande ou de sécurité
• F24F 11/65 - Traitement électronique pour la sélection d'un mode de fonctionnement
• F24F 11/79 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de l’apport en air traité, p. ex. commande de la pression pour la commande de la direction de l’air fourni
• F24F 11/80 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni
• F24F 13/075 - Bouches pour diriger ou distribuer l'air dans des pièces ou enceintes, p. ex. diffuseur d'air de plafond ayant des tiges ou des lamelles parallèles orientant l'écoulement, p. ex. ayant des tiges ou des lamelles réglables individuellement
• F24F 120/12 - Position des occupants

Abrégé

The present application discloses a refractory material with the function of cleaning molten steel, a preparation method therefor and the use thereof. The material phase of the refractory material of the present application comprises one or more of CA6, CMA, corundum and ZrO2. The refractory material prepared by the present application has a high purity, good erosion resistance, good slag permeability resistance and high thermal shock stability, reduces the amount of refractory material eroded into molten steel, reduces the pollution of the molten steel, and can also give full play to the performance advantages of high-purity raw materials.

Classes IPC  ?

• B22D 41/02 - Garnissage
• C04B 35/119 - Composites avec de l'oxyde de zirconium
• C04B 35/645 - Frittage sous pression

Abrégé

A wind power generation quantile prediction method based on machine mental model and self-attention includes: using human cognitive decision-making mechanism for reference to construct the machine mental model as the basic framework of WQPMMSA, and then the seasonal power generation rules and intraday power generation trend are encoded into WQPMMSA as the input information of the prediction method, using the self-attention layer to replace the recurrent neural network in the original machine mental model, and establishing the statistical relationship between the seasonal power generation rules and the intraday power generation trend effectively, reducing the long-range forgetting of the original machine mental model-convert the continuous rank probability score in the integral form into a summation form, and using it as a loss function to train WQPMMSA, so that WQPMMSA approaches the optimal quantile prediction result with the highest efficiency. Therefore, accurate quantile prediction of wind power generation is realized.

Classes IPC  ?

• G06N 3/042 - Réseaux neuronaux fondés sur la connaissanceReprésentations logiques de réseaux neuronaux
• G06N 3/084 - Rétropropagation, p. ex. suivant l’algorithme du gradient

Abrégé

The present invention belongs to the technical field of refractory materials, and disclosed are a high-purity compact calcium hexa-aluminate-based refractory material, a preparation method therefor, and a working lining using the same. The mixing ratio is adjusted according to the chemical composition of the final product to contain raw materials containing CaO, Al2O3 and ZrO2, the mixing ratio enabling the ratio of the chemical composition CaO:Al2O3:ZrO2 calculated according to parts by mass to be 45.5-95.5%:2.0-8.4%:0-50%; and the chemical composition are placed into a high-temperature furnace and a mold for hot-pressing is carried out, the maximum temperature is 1550-1800° C., and the hot-pressing strength is 0.5-30 MPa. In the present invention, when no sintering agent is added, a hot-pressing sintering process is employed according to a proportion to obtain a high-purity compact calcium hexa-aluminate-based refractory material, and the refractory material has excellent resistance to molten steel erosion and thermal shock stability, and can be widely applied in metallurgy, building materials and petrochemical industries as well as other industries. The preparation method is scientific and reasonable, product purity is high, and the prepared refractory material product can increase a device operation period; in addition, production costs are reduced, and energy-saving and emission-reducing effects are achieved.

Classes IPC  ?

• C04B 35/44 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'aluminates
• C04B 35/645 - Frittage sous pression

Abrégé

An intervention-based shared control method and apparatus in forward collision avoidance scenario of autonomous vehicle includes: acquiring vehicle state data of the autonomous vehicle and inputting the vehicle state data into a constructed forward collision avoidance control model to obtain an optimal nominal collision avoidance trajectory of the autonomous vehicle; and acquiring steering input data of a driver in controlling the autonomous vehicle, and obtaining the shared control method in the forward collision avoidance scenario of the autonomous vehicle. The present disclosure proposes a vehicle model decoupling method for control solution and risk prediction in a high-velocity forward collision avoidance scenario.

Classes IPC  ?

• B60W 30/095 - Prévision du trajet ou de la probabilité de collision
• B60W 60/00 - Systèmes d’aide à la conduite spécialement adaptés aux véhicules routiers autonomes

Abrégé

Disclosed in the present invention are a corrosion-resistant refractory material, preparation method therefor, and the use thereof. In the corrosion-resistant refractory material, a material phase of the refractory material comprises corundum and one or more material phases selected from CA6, C2M2A14, CM2A8, and ZrO2. The refractory material has low a low amount of a high-temperature liquid phase, a uniform pore structure, and good thermal shock stability; can be widely used in steel-making production lines and also in the refractory linings of rotary kilns, and has good erosion resistance and low thermal conductivity, and the performance thereof is obviously superior to that of many existing refractory materials such as silico carbide-mullite bricks and magnesia-alumina spinel bricks.

Classes IPC  ?

• C04B 35/119 - Composites avec de l'oxyde de zirconium
• B22D 41/02 - Garnissage
• C04B 35/645 - Frittage sous pression

Abrégé

Disclosed are a CA6-based thermally insulating refractory material with a medium volume density, a preparation method therefor, and the use thereof. The CA6-based thermally insulating refractory material with a medium volume density in the present invention has phases comprising CA6 and one or more selected from C2M2A14, C2M2A8, magnesium aluminate spinel, and corundum, and the refractory material has a high purity, good high temperature stability, a uniform structure, stable performance, a relatively low thermal conductivity, and good corrosion resistance to a metal, slag, etc.

Classes IPC  ?

• C04B 35/101 - Réfractaires obtenus à partir de mélanges à granulométrie contrôlée
• B22D 41/02 - Garnissage
• C04B 35/645 - Frittage sous pression

Abrégé

A converter bottom blowing system comprises a first gas source connected in parallel with a lime powder silo, a lime powder blowing tank and a first injector, where a first cut-off valve is arranged between the lime powder blowing tank and the first injector; a second gas source connected in parallel with the biochar powder silo, the biochar powder blowing tank and the second injector, where a second cut-off valve is arranged between the biochar powder blowing tank and the second injector; a converter, where a plurality of bottom blowing lances are arrayed at a bottom of a converter, the bottom blowing lances are connected with the first injector and the second injector through a three-way valve, a third cut-off valve is arranged between the first injector and the three-way valve, and a fourth cut-off valve is arranged between the second injector and the three-way valve.

Classes IPC  ?

• C21C 5/30 - Réglage et commande du soufflage
• C21C 5/46 - Parties constitutives ou accessoires
• C21C 7/064 - DéphosphorationDésulfuration

Abrégé

A 5G-TSN resource joint scheduling apparatus includes: a state information acquisition module, a scheduling decision making module, and a configuration module. The state information acquisition module is configured to acquire bottom-layer network information, and process the acquired bottom-layer network information to obtain state information, the bottom-layer network information includes channel information, gate control list information of a TSN domain, and queue information in a base station. The scheduling decision making module is configured to obtain a result of decision making based on the state information output by the state information acquisition module using a DDPG-based reinforcement learning model, the result of decision making includes whether to allocate resources for a current queue and a number of resources actually allocated to the current queue. The configuration module is configured to convert the result of decision making to one or more instructions understandable by the base station to configure the base station.

Classes IPC  ?

• H04W 72/1263 - Jumelage du trafic à la planification, p. ex. affectation planifiée ou multiplexage de flux
• H04W 72/0446 - Ressources du domaine temporel, p. ex. créneaux ou trames
• H04W 72/542 - Critères d’affectation ou de planification des ressources sans fil sur la base de critères de qualité en utilisant la qualité mesurée ou perçue
• H04W 72/543 - Critères d’affectation ou de planification des ressources sans fil sur la base de critères de qualité sur la base de la qualité demandée, p. ex. QdS [QoS]

Abrégé

A composite aerogel based on graphdiyne motif arrangement and a preparation method thereof are provided by the embodiments of the disclosure, belonging to the technical field of photothermal evaporation materials, including firstly growing graphdiyne on a surface of the graphene oxide to obtain a graphdiyne-coated graphene oxide, taking an additional graphene oxide, adding the additional graphene oxide and the graphdiyne-coated graphene oxide obtained by the coupling reaction into pure water, and ultrasonically mixing to obtain a mixed dispersion, adding a polyvinyl alcohol aqueous solution into the mixed dispersion, and transferring to a reaction kettle after ultrasonic mixing, putting the reaction kettle after sealing into a blast drying box for hydrothermal reaction to obtain a gel structure, and cleaning the gel structure, and freeze-drying to obtain a composite aerogel containing graphdiyne-coated reduced graphene oxide and reduced graphene oxide.

Classes IPC  ?

• C01B 32/194 - Post-traitement
• B01D 1/00 - Évaporation
• B01J 13/00 - Chimie des colloïdes, p. ex. production de substances colloïdales ou de leurs solutions, non prévue ailleursFabrication de microcapsules ou de microbilles
• C01B 32/198 - Oxyde de graphène
• C02F 1/14 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par chauffage par distillation ou évaporation utilisant l'énergie solaire

Abrégé

A low-cost four-element system cementitious material, a preparation method and an application thereof are provided by the present disclosure, and the cementitious material is used in the fields of mine cementing filling and building materials. The four-element system cementitious material includes the following raw materials in percentage by mass: 20-60% of water-quenched blast furnace slag, 10-40% of waste incineration bottom ash, 20% of pretreated waste incineration fly ash and the balance of desulfurization gypsum. The low-cost four-element system cementitious material is used to replace cement to prepare mine cementing filling materials, and is also used to prepare concrete materials for construction industry.

Classes IPC  ?

• C04B 7/153 - Leurs mélanges avec d'autres matières inorganiques cimentaires ou avec d'autres activateurs
• C04B 7/28 - Ciments produits à partir de schistes bitumineux, de déchets ou de résidus autres que des scories à partir de résidus de combustion
• C04B 11/26 - Ciments de sulfate de calcium à partir de phosphogypse ou de déchets, p. ex. à partir des produits de purification de fumées
• C04B 11/30 - Leurs mélanges avec d'autres matières inorganiques cimentaires avec des ciments hydrauliques, p. ex. avec des ciments Portland
• C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
• C04B 28/08 - Ciments de scories
• C04B 28/14 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium
• C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir

Abrégé

An additively manufactured high-strength and high-ductility stainless steel is characterized in that the composition, by weight percentage, C≤0.05 wt %, Si≤1 wt %, Mn≤1 wt %, Cr 14.5-15.5 wt %, Ni 5.0-5.5 wt %, Cu 4-4.5 wt %, Nb 0.35-0.45 wt %, and the balance of Fe and unavoidable impurities. And Cr equivalent of Creq=% Cr+% Mo+2.2% Ti+0.7% Nb+2.48% Al. Ni equivalent of Nieq=% Ni+35% C+20% N+0.25% Cu. The yield strength of the high-strength and high-ductility stainless steel ≥1270 MPa, the tensile strength ≥1380 MPa, and the elongation after fracture ≥15%.

Classes IPC  ?

• C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres
• B22F 10/28 - Fusion sur lit de poudre, p. ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
• B22F 10/64 - Traitement de pièces ou d'articles après leur formation par des moyens thermiques
• B33Y 10/00 - Procédés de fabrication additive
• B33Y 40/20 - Posttraitement, p. ex. durcissement, revêtement ou polissage
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
• B33Y 80/00 - Produits obtenus par fabrication additive
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
• C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale

Abrégé

The present invention relates to the technical field of Al-Zn-Mg-Cu alloy materials and preparation, and disclosed are an Al-Zn-Mg-Cu alloy material for a lightweight structural member and a preparation method. The alloy material comprises the following components in percentage by mass: Zn: 6.7-8.2; Mg: 2.0-2.5; Cu: 1.8-2.6; Zr: 0.01-0.2; Fe: ≤0.3; Si: ≤0.25; Mn: ≤0.2; Cr: ≤0.2; Ti: ≤0.15; other elements: ≤0.05; and the remainder being Al. The aluminum alloy material developed by the present invention has the properties such as high strength and toughness, high corrosion resistance, fatigue resistance, low quenching sensitivity, and high conductivity, and alloy element addition and preparation modes can achieve a good synergistic effect; the present invention can be used for manufacturing plates/profiles of different sizes and specifications, and satisfies the manufacturing and application requirements of light high-strength components required for manufacturing aerospace crafts and transportation equipment.

Classes IPC  ?

• C22C 21/10 - Alliages à base d'aluminium avec le zinc comme second constituant majeur
• C22C 1/03 - Fabrication des alliages non ferreux par fusion utilisant des alliages-mères
• C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur

Abrégé

Disclosed are a multimodal weakly-supervised three-dimensional (3D) object detection method and system, and a device. The method includes: shooting multiple two-dimensional (2D) red, green and blue (RGB) images with a camera, acquiring ground points by a vehicle LiDAR sensor and generating a 3D frustum based on 2D box labels on each of the 2D RGB images; filtering ground points in the 3D frustum and selecting a region with most 3D points; generating a 3D pseudo-labeling bounding box of an object according to the region with the most 3D points; training a multimodal superpixel dual-branch network with the 3D pseudo-labeling bounding boxes as labels and the 2D RGB image and the 3D point cloud as inputs; and inputting a 2D RGB image of a current frame and a 3D point cloud of a current scenario to a trained multimodal superpixel dual-branch network to generate an overall 3D point cloud.

Classes IPC  ?

• G06V 10/80 - Fusion, c.-à-d. combinaison des données de diverses sources au niveau du capteur, du prétraitement, de l’extraction des caractéristiques ou de la classification
• G06T 5/00 - Amélioration ou restauration d'image
• G06T 7/73 - Détermination de la position ou de l'orientation des objets ou des caméras utilisant des procédés basés sur les caractéristiques
• G06V 10/77 - Traitement des caractéristiques d’images ou de vidéos dans les espaces de caractéristiquesDispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant l’intégration et la réduction de données, p. ex. analyse en composantes principales [PCA] ou analyse en composantes indépendantes [ ICA] ou cartes auto-organisatrices [SOM]Séparation aveugle de source
• G06V 10/774 - Génération d'ensembles de motifs de formationTraitement des caractéristiques d’images ou de vidéos dans les espaces de caractéristiquesDispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant l’intégration et la réduction de données, p. ex. analyse en composantes principales [PCA] ou analyse en composantes indépendantes [ ICA] ou cartes auto-organisatrices [SOM]Séparation aveugle de source méthodes de Bootstrap, p. ex. "bagging” ou “boosting”
• G06V 20/58 - Reconnaissance d’objets en mouvement ou d’obstacles, p. ex. véhicules ou piétonsReconnaissance des objets de la circulation, p. ex. signalisation routière, feux de signalisation ou routes
• G06V 20/64 - Objets tridimensionnels

Abrégé

A method for evaluating energy efficiency of electric arc furnace steelmaking comprises: obtaining original smelting information of the electric arc furnace; processing the original smelting information, and calculating an electrical energy efficiency evaluation index and a chemical energy efficiency evaluation index for process operation; wherein the electrical energy efficiency evaluation index comprises circuit efficiency, transformer tap capacity utilization rate and electrical energy thermal efficiency, and the chemical energy efficiency evaluation index comprises oxygen utilization rate, carbon powder utilization rate and chemical energy thermal efficiency; and evaluating an energy utilization condition of the electric arc furnace comprehensively based on the electrical energy efficiency evaluation index and the chemical energy efficiency evaluation index. According to the method, a basis can be provided for subsequent smelting process adjustment, and the energy utilization efficiency of the electric arc furnace is improved.

Classes IPC  ?

• C21C 5/52 - Fabrication de l'acier au four électrique

Abrégé

An efficient blasting method for similar cutting in a rock tunnel is provided, which relates to the technical field of rock tunneling. The method includes the following steps: drilling: drilling central holes, lower cutting holes, upper cutting holes, auxiliary holes and peripheral holes in a cross section area for tunnel construction; filling explosives: filling explosives into the central holes, the lower cutting holes, the upper cutting holes, the auxiliary holes and the peripheral holes; and blasting: blasting following blast holes in turn to complete full-face one-time blasting in a millisecond delay blasting mode. The method is applicable for construction scenes of drilling and blasting methods.

Classes IPC  ?

• F42D 1/22 - Dispositifs de maintien ou de positionnement des cartouches de sautage ou de bourrage dans les trous de mine
• E21D 9/00 - Tunnels ou galeries, avec ou sans revêtementsProcédés ou appareils pour leur exécutionTracé des tunnels ou des galeries
• F42D 3/04 - Applications particulières de techniques de sautage pour faire sauter des rochers

Abrégé

A method for numerical reconstruction and heat transfer characteristics evaluation of a microstructure of thermal barrier coatings containing microcracks includes the following steps: determining a simulation area and size settings, generating random microcracks with different morphological characteristics and placing the microcracks in the simulation area, and determining whether a space occupied by the microcracks reaches a porosity ratio of the preset microcracks, building a general pore model of thermal barrier coatings (TBCs) based on the QSGS method, reconstructing true mesoscopic morphologies of the TBCs, determining whether the preset volume fraction has been reached, and building a heat transfer analysis model based on the thermal Lattice Boltzmann method to calculate heat insulation performance parameters such as temperature distribution, and thermal conductivity. Compared with the prior art, the heat transfer analysis model can restore a mesoscopic structure of the coating more truly and effectively.

Classes IPC  ?

• G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu
• G06F 111/08 - CAO probabiliste ou stochastique
• G06F 111/10 - Modélisation numérique

Abrégé

The present disclosure relates to a three-degree-of-freedom convenient mobile powder recovery device and a recovery method. The three-degree-of-freedom convenient mobile powder recovery device includes: a powder recovery module, a three-degree-of-freedom adjusting module and a drying and sieving module, wherein the powder recovery module is arranged on the three-degree-of-freedom adjusting module and used to recover powder; and the drying and sieving module is arranged on the three-degree-of-freedom adjusting module, connected to the powder recovery module and used to dry and sieve powder recovered by the powder recovery module. The three-degree-of-freedom convenient mobile powder recovery device has a simple structure, which is convenient to be operated. The height and position of the three-degree-of-freedom convenient mobile powder recovery device can be adjusted automatically, so that the recovery device is suitable for the setting of laser processing systems with various heights in the telescopic range.

Classes IPC  ?

• B29C 64/357 - Recyclage
• B07B 1/00 - Criblage, tamisage ou triage des matériaux solides au moyen de treillis, grilles ou systèmes analogues
• B07B 1/28 - Tamis mobiles non prévus ailleurs, p. ex. à oscillations, à mouvement alternatif, à balancement, à basculement ou à vacillement
• B22F 10/73 - Recyclage de la poudre

Abrégé

The present invention discloses a high-entropy soft magnetic alloy with 900 K high-temperature resistance, comprising Fe, Co, Ni, Si and Al, and the atomic percent of the alloy composition is expressed as FexCoyNizSimAln, wherein x=40%-80%, y=20%-60%, z=0-30%, m=0-20%, n=0-20%, and x+y+z+m+n=100%; the atomic percent of other doping elements is p=0-5%, and 0.5≤m/n≤3; the performance indexes of the material include: at room temperature, saturation magnetization Ms=90-150 emu/g, and coercive force Hc=0.1-15 Oe; and at 900 K, saturation magnetization Ms=70-130 emu/g, and coercive force Hc=0.1-25 Oe. The high-entropy soft magnetic alloy with 900 K high-temperature resistance of the present invention realizes the continuously diffuse distribution of nano-scale precipitates in the matrix structure by comprehensively regulating the microstructure configuration of the multi-principal element alloy, thus improving the soft magnetic properties of the alloy to a certain extent, and the processing route is simple and reliable, with high repeatability.

Classes IPC  ?

• H01F 1/153 - Alliages métalliques amorphes, p. ex. métaux vitreux
• C22C 1/02 - Fabrication des alliages non ferreux par fusion
• C22C 30/00 - Alliages contenant moins de 50% en poids de chaque constituant
• C22C 33/04 - Fabrication des alliages ferreux par fusion
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
• C22C 38/10 - Alliages ferreux, p. ex. aciers alliés contenant du cobalt

Abrégé

The present disclosure provides a method and device for intelligent control of heating furnace combustion based on a big data cloud platform, which relates to the technical field of artificial intelligence control. The method includes: construction of big data cloud platform based on production and operation parameters of the heating furnace; identification of key factors in the production process of the heating furnace by using big data mining technology; independent deployment of traditional heating furnace combustion control systems based on the mechanism model; and integration of cloud platform big data expert knowledge base and the heating furnace combustion intelligent control system.

Classes IPC  ?

• G05B 13/04 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques impliquant l'usage de modèles ou de simulateurs

Abrégé

abcdefghxx as a precursor; and then selectively removing active phases in the precursor by means of a chemical/electrochemical dealloying method to prepare the multi-principal element porous alloy. The multi-principal element porous alloy can be directly used as an electrode for electrolyzing seawater, the overpotentials of an oxygen evolution reaction (OER) and a hydrogen evolution reaction (HER) under an industrial electrolytic current density are respectively 461 mV and 178 mV, and an OER stable operation is performed for more than 1600 h under the current density. The present invention has great application prospects in the aspect of electrode devices for electrolyzing seawater for hydrogen production.

Classes IPC  ?

• C22C 30/00 - Alliages contenant moins de 50% en poids de chaque constituant
• C22C 30/02 - Alliages contenant moins de 50% en poids de chaque constituant contenant du cuivre
• C22C 1/08 - Alliages poreux avec pores ouverts ou fermés
• C23F 1/02 - Gravure locale
• C23F 1/30 - Compositions acides pour les autres matériaux métalliques
• C25B 11/031 - Électrodes poreuses
• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau

Abrégé

The present invention discloses a full-face boring machine system for a vertical shaft, comprising: a boring cutter head apparatus used for downward tunneling in the vertical shaft, a fully hydraulic formwork apparatus used for supporting and building walls in the shaft, and an upper slag discharge system used for vertical transportation of rock slag generated during boring. The present invention eliminates difficulties in building a relay station in a shaft, and after large-scale rock slag is removed, the pipe blocking problem is effectively solved; mud circulation is changed into water circulation, so that energy consumption is greatly reduced; and the slag discharge system can achieve efficient and continuous operation, thereby laying a solid foundation for intelligent and efficient well construction.

Classes IPC  ?

• E21D 1/06 - Fonçage des puits mécanique au moyen d'appareils à inciser pour forer les puits
• E21D 5/12 - Accessoires pour faire les revêtements de puits, p. ex. plates-formes suspendues, coffrages

Abrégé

A device and method for preparing a low-impurity regenerated brass alloy through step-by-step insertion of an electrode are provided. The device includes a melt heating apparatus, an electrode displacement apparatus, and a pulse current generation apparatus. The automatic electrode lifting apparatus is controlled to adjust an insertion depth of the graphite electrode plate in the metal melt, and the pulse current generation apparatus is controlled to adjust the parameters of pulse current to achieve the impurity reduction on the metal melt. The preparation of a low-impurity regenerated brass alloy involves a short production process, simple operations, low energy consumption, and high impurity removal efficiency, and is suitable for regeneration and large-scale continuous production of non-ferrous metal alloys.

Classes IPC  ?

• C22C 1/02 - Fabrication des alliages non ferreux par fusion
• C25C 3/34 - Production, récupération ou affinage électrolytique de métaux par électrolyse de bains fondus des métaux non prévus dans les groupes

Abrégé

A full-face shaft tunnel boring machine system includes a tunnel boring machine cutterhead device for tunneling downwards in a shaft; a full-hydraulic formwork device for supporting and walling in a wellbore; and an upper muck-discharge system for vertically conveying rock mucks generated by tunneling. The tunnel boring machine cutterhead device comprises a vertical guide frame, a cutter-expanded boring head and an advanced cutterhead that are fixedly connected in a vertical order from top to bottom so as to form an integrated structure. The vertical guide frame is a hollow cylindrical structure and driven to rotate around an axis of the vertical guide frame by a power mechanism, and an outer wall of the vertical guide frame is provided with multiple sets of first guide rollers.

Classes IPC  ?

• E21B 21/00 - Procédés ou appareils pour nettoyer les trous de forage par jet de fluide, p. ex. en utilisant l'air d'échappement du moteur
• E21D 1/06 - Fonçage des puits mécanique au moyen d'appareils à inciser pour forer les puits
• E21D 5/00 - Revêtement des puitsRevêtements à cet effet

Abrégé

The invention relates to a method and a system for determining the steel-tapping quantity of a converter, which consider that the working environment of the steel-making process of the converter is severe, the measurement is difficult and the interference of other factors is large, and provide a data-driven prediction model based on data, combine a Principal Component Analysis (PCA) with a RBF neural network, find the relation and the internal relation among variables by carrying out mathematical analysis on the related internal structure of the original variables, can quickly and accurately realize the prediction of the steel-tapping quantity of the converter, improve the component hit rate and the product stability in the steel-making process of the converter, are beneficial to realizing the control of narrow regions of steel-making components, save the alloying cost and have good application prospects in the field of ferrous metallurgy.

Classes IPC  ?

• C21C 5/30 - Réglage et commande du soufflage
• G06N 5/00 - Agencements informatiques utilisant des modèles fondés sur la connaissance

Abrégé

An efficient cut blasting method for medium-length holes in deep high-stress rock roadway is disclosed. The method may comprise steps of carrying out a crustal stress blasting test on the free face of the in-situ rock roadway to be excavated, and obtaining a distribution state of cracks under a synergistic action of crustal stress, explosion stress waves and clamping force of surrounding rock of a rock mass in the stratum where the in-situ rock roadway to be excavated is located; arranging a cutting hole net on the free face of the rock roadway to be excavated according to a distribution state of the cracks; performing cut blasting based on the cutting hole net.

Classes IPC  ?

• F42D 1/08 - Procédés de bourrageProcédés pour charger des trous de mine en explosifsAppareils à cet effet
• F42D 3/04 - Applications particulières de techniques de sautage pour faire sauter des rochers

Abrégé

A method of locating a failure of coal-rock-concrete based on vector features of a near-field electromagnetic field is provided. The method senses and records the real electromagnetic field vector information in space by arranging a triaxial electromagnetic sensor array around a coal-rock-concrete body, and realizes the localization of the failure areas of the coal-rock-concrete body by establishing an electromagnetic radiation localization model for the failures of the coal-rock concrete body. The electromagnetic radiation localization model for the failures of the coal-rock concrete body approximates the radiation source of electromagnetic radiation generated by failures as a dipole with a dipole moment, so as to realize the localization of a large number of relatively small-intensity failures during the disaster incubation stage and evolution process, realize the monitoring and early warning of the final disaster locations, and further improve the reliability of electromagnetic radiation positioning technology.

Classes IPC  ?

• G01V 3/08 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation fonctionnant au moyen de champs magnétiques ou électriques produits ou modifiés par les objets ou les structures géologiques, ou par les dispositifs de détection

Abrégé

Disclosed are a high strength-ductility matched oxide-particles dispersion steel, a preparation method and application thereof, belonging to the technical field of novel structural materials. The high strength-ductility matched oxide-particles dispersion steel comprises the following components in percentage by mass: chromium (Cr) 11.0-13.0 percent (%), tungsten (W) 1.0-2.0%, vanadium (V) 0.1-0.2%, yttrium (Y) 0.3-0.4%, oxygen (O) 0.05-0.15%, silicon (Si) 1.5-2.5%, carbon (C) ≤0.0016%, with iron (Fe) and unavoidable impurities accounting for a rest. The high strength-ductility matched oxide-particles dispersion steel in the present application is prepared, using a powder metallurgical preparation method, by introducing high-content of silicon elements and introducing high-density oxide particles with a complete core-shell structure using a specific heat treatment regime.

Classes IPC  ?

• C22C 33/06 - Fabrication des alliages ferreux par fusion en utilisant des alliages-mère
• C22C 33/00 - Fabrication des alliages ferreux
• C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
• C22C 38/24 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du vanadium
• C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
• C22C 38/00 - Alliages ferreux, p. ex. aciers alliés

Abrégé

The present disclosure discloses a process for evaluating a corrosion inhibitor based on a high-throughput corrosion chip. In the present disclosure, a high-throughput corrosion chip is first prepared by using a chip spotter, and only a corrosion inhibitor and a corrosive substance need to be spotted on a metal sample to quickly, efficiently, and accurately evaluate performance of a corrosion inhibitor formulation, to meet corrosion test conditions such as different substances, different concentrations, and different corrosion duration; and then a corrosion degree of each measurement point in the high-throughput corrosion chip is identified and quantified by using a laser scanning confocal microscope. The high-throughput corrosion chip prepared by using the foregoing method can bear 10-1000 measurement points, and these measurement points can reflect corrosion effects of different inhibitor formulations in different corrosion duration.

Classes IPC  ?

• G01N 17/00 - Recherche de la résistance des matériaux aux intempéries, à la corrosion ou à la lumière

Abrégé

A method and an equipment for comprehensive utilization of niobite is disclosed. The method includes the following steps: S1. adding and uniformly mixing a coal-based reducing agent to the niobite, and subsequently reducing the mixture in a reduction furnace to obtain the selective reduction product; S2. adding the selective reduction product to a super-gravity reactor where the ambient temperature is controlled to be lower than the temperature at which the niobium oxide is reduced; driven by super-gravity, reverse migrating and collecting the metal iron and the niobium-rich slag at different locations in the reactor; discharging the metallic iron tightly attached to the wall of the reactor through an iron discharging port, and discharging the niobium-rich slag enriched to the inner layer of the reactor through a slag discharging port, so that the separation of the metallic iron and the niobium-rich slag is realized in the super-gravity field.

Classes IPC  ?

• C22B 34/24 - Obtention du niobium ou du tantale
• C22B 5/10 - Procédés généraux de réduction appliqués aux métaux par voie sèche par des agents réducteurs carbonés solides

Abrégé

The invention is in the field of iron and steel metallurgy, specifically a method and system for determining the amount of alloy added during the converter tapping process. Given that the LSTM neural network has a strong ability to capture nonlinear relationships, the invention builds an alloy element yield prediction model based on the LSTM neural network. Because different alloy elements have different factors that affect their yield, that is, different model input variables, different LSTM models are established for training. Furthermore, the invention uses integer linear programming to combine the yield prediction results to determine the alloy addition amount. This method not only finds the optimal alloy proportioning scheme quickly, but it also improves the component hit rate and the stability of steel products in the converter steelmaking process, obtains the lowest total cost, effectively reduces alloying costs, and has a good application prospect.

Classes IPC  ?

• G06N 3/08 - Méthodes d'apprentissage

Abrégé

A method for reducing oxygen in a powder for 3D printing, which belongs to the field of powder metallurgy. The method comprises: firstly, screening a commercially available atomized metal powder by using a sieve, so as to remove impurities in the powder; placing the commercially available atomized metal powder obtained from screening in a jet mill apparatus for a surface treatment, so as to improve the surface morphology of the powder; and placing the atomized metal powder obtained from a jet milling treatment and a surface treatment in a high-purity argon or nitrogen atmosphere for screening, and subjecting same to vacuum sealed packaging. Satellite powders do not adhere to the surfaces of powder particles obtained from the jet milling treatment, the oxygen content is significantly reduced, and the sphericity degree of the powder reaches 90% or more, such that the performance of a 3D printed and formed part can be improved. The method is suitable for atomized powders of different material systems, including a titanium alloy, an iron-based alloy, a nickel-based high-temperature alloy, etc., and is short in terms of technological process, easy to operate, high in terms of the utilization rate of raw materials, and low in terms of cost.

Classes IPC  ?

• B22F 1/14 - Traitement des poudres métalliques
• B22F 9/04 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau solide, p. ex. par broyage, meulage ou écrasement à la meule
• B22F 10/34 - Commande ou régulation des opérations des caractéristiques de la poudre, p. ex. densité, oxydation ou fluidité
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive

Abrégé

The present invention provides a device and method for preparing a low-impurity regenerated brass alloy through step-by-step electrode insertion, and belongs to the technical field of metal melt purification. The device comprises a melt heating device, an electrode displacement device, and a pulse current generating device, and particularly comprises a heating source, a metal melt, a melting pool, a graphite electrode plate, a connector, a connecting rod, a rotary fixing knob, a telescopic rod, an electric motor, a sliding plate, a parallel metal sliding plate base, and a fixing base, wherein one end of the graphite electrode plate is inserted into the melt; the other end of the graphite electrode plate is connected to the connector; the connector is connected to the connecting rod; the connecting rod penetrates the telescopic rod; the telescopic rod controls an electrode to move up and down; the sliding plate and the parallel metal sliding plate base control the electrode to move to the left and right; the parallel metal sliding plate base is connected to the fixing base; and a metal wire is connected to the connector and the pulse current generating device. By employing the present invention to prepare the low-impurity regenerated brass alloy, the production flow is short, the operation is simple, the energy consumption is low, and the impurity removal efficiency is high, and therefore the present invention is suitable for regeneration and the large-scale continuous production of non-ferrous metal alloys.

Classes IPC  ?

• C22C 1/03 - Fabrication des alliages non ferreux par fusion utilisant des alliages-mères
• C22C 9/08 - Alliages à base de cuivre avec le plomb comme second constituant majeur
• C22C 9/00 - Alliages à base de cuivre
• C22C 9/10 - Alliages à base de cuivre avec le silicium comme second constituant majeur
• C22C 9/02 - Alliages à base de cuivre avec l'étain comme second constituant majeur
• F27D 11/10 - Disposition des électrodes

Abrégé

The present disclosure provides a reinforcement learning-based decision optimization method of an oilfield production system, including: collecting dynamic production data of an oilfield production site to establish a data cube for reservoir production optimization; training a preset machine learning model based on the data cube to obtain a reinforcement learning-based reservoir injection-production system surrogate model configured to predict oil production according to the dynamic production data available on site; constructing an evaluation function for production optimization of a gas injection reservoir; establishing, during a process of production optimization, an enforced constraint model based on input parameters and a boundary constraint condition; and with the constraint model and the boundary constraint condition as constraints, the reservoir injection-production system surrogate model as a basis, and the evaluation function as an optimization direction, searching reservoir production optimization schemes for an optimal production scheme.

Classes IPC  ?

• E21B 43/16 - Procédés de récupération assistée pour l'extraction d'hydrocarbures
• E21B 43/25 - Procédés pour activer la production

Abrégé

6 carbides in the GH4738 ring after heat treatment. The elongation and area reduction of the alloy ring stretched at 540° C. after heat treatment are 30% and 34% respectively, which are 25% and 36% higher than those before process optimization respectively; and that at 760° C. are 49% and 70% respectively, which are 32% and 27% higher than those before process optimization respectively. The index requirements can be fully met. This process is applicable to GH4738 rings, which have a high requirement on high-temperature plasticity after heat treatment.

Classes IPC  ?

• C22F 1/10 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid du nickel ou du cobalt ou de leurs alliages
• C22F 1/02 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid en atmosphère neutre ou contrôlée ou dans le vide

Abrégé

The present disclosure relates to an incremental backup method and system for a CAD engineering data file, and the method includes: chunking historical CAD engineering data based on a sliding window approach, to determine a first data block group; calculating a first hash fingerprint value separately for each data block in the first data block group; chunking, based on the sliding window approach, CAD engineering data to be backed up, to determine a second data block group; calculating a second hash fingerprint value separately for each data block in the second data block group; and determining a backup status of the data block in the second data block group based on the first hash fingerprint value and the second hash fingerprint value. The present disclosure resolves a problem that a long time is occupied when a large-scale engineering CAD data file is saved by applying a full backup.

Classes IPC  ?

• G06F 11/14 - Détection ou correction d'erreur dans les données par redondance dans les opérations, p. ex. en utilisant différentes séquences d'opérations aboutissant au même résultat
• G06F 30/10 - CAO géométrique

Abrégé

Provided is a method for determining a quantity of a calcium line fed into molten steel based on a minimum Gibbs free energy principle, which relates to an calcium treatment process of molten steel refining for iron and steel metallurgy. The method includes: establishing a connection with a database to read composition information and a temperature of the molten steel in an actual production process; calculating contents of inclusions in the molten steel according to the read composition information; calculating a required quantity of calcium of the molten steel to control the inclusions in a target area under a current condition; and calculating a length of the fed calcium line according to parameter information of the calcium treatment process and the required quantity of calcium of the molten steel. With the method, a scientific and reasonable guidance is provided for the calcium treatment process in the actual production process.

Classes IPC  ?

• G06N 3/045 - Combinaisons de réseaux
• C21C 7/00 - Traitement à l'état liquide des alliages ferreux, p. ex. des aciers, non couverts par les groupes

Abrégé

A solid-liquid separation system, comprising: a filtering cylinder (1), a filter cloth laying apparatus (3), an apparatus (2) used for bearing and moving the filtering cylinder, a squeezing apparatus (4), and a filter cloth releasing, discharging and rolling apparatus (5), wherein said apparatus (2) is located below the filtering cylinder (1) and comprises a working position A and a working position B; the filtering cylinder reciprocates between the working position A and the working position B; in the working position B, the squeezing apparatus (4) is located above the filtering cylinder (1); the filter cloth laying apparatus (3) comprises an assembly for laying filter cloth, and a material sprayer (36); in the working position A, the material sprayer (36) is located above the filtering cylinder (1); the assembly for laying filter cloth lays in a cylinder body the filter cloth (37); and the material sprayer (36) sprays from top to bottom materials to be treated onto the filter cloth (37). The positions of the apparatuses constituting the solid-liquid separation system are easy to adjust, thereby improving the laying of the materials and the filter cloth (37), and correspondingly improving the effect and efficiency of solid-liquid separation.

Classes IPC  ?

• B01D 33/76 - Filtres avec éléments filtrants mobiles au cours de l'opération de filtration comportant des dispositifs d'alimentation ou d'évacuation d'évacuation du gâteau de filtration, p. ex. goulottes
• B01D 33/80 - Accessoires
• B01D 33/04 - Filtres avec éléments filtrants mobiles au cours de l'opération de filtration à bandes filtrantes ou analogues supportées par des cylindres imperméables pour la filtration
• B01D 33/60 - Manipulation du gâteau de filtration dans le filtre pour des raisons autres que la régénération pour le lavage
• B01D 37/04 - Commande de la filtration
• B05B 13/02 - Moyens pour supporter l'ouvrageDisposition ou assemblage des têtes de pulvérisationAdaptation ou disposition des moyens pour entraîner des pièces

Abrégé

A segmented grouting method for ramp drivage in an aquifer is provided. Concerning grouting reinforcement for a ramp in an aquifer, a grouting process is divided into four stages according to a pressure change, that is, micro-pressure filling, low-pressure diffusion, medium-pressure reinforcement, and high-pressure fracturing. In the micro-pressure filling, an initial pressure of a grouting orifice is 0, and a low-concentration single-component grout is used to fill an original fissure of the aquifer. In the low-pressure diffusion, a low-concentration bicomponent grout is used for grouting, the original fissure is expanded, and a grouting radius is increased. In the medium-pressure reinforcement, a high-concentration bicomponent grout is used for grouting, thereby reinforcing the aquifer. In the high-pressure fracturing, a high-concentration bicomponent grout is used to reinforce a new fractured fissure of the orifice caused by a high pressure and the original fissure, thereby forming a confining bed.

Classes IPC  ?

• E21B 33/13 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues

Abrégé

A petroleum drill-string shock absorber includes a drill collar nipple, a driving unit, an outer shell, a helical guideway, a drill bit base, a woven metal ring and a vibration-absorbing composite beam, the vibration-absorbing composite beam consists of a sheet metal and a flexible material gasket bonded by an adhesive; the drill collar nipple is connected with the helical guideway; the helical guideway is connected with the drill bit base; the driving unit rotates on the helical guideway; the outer shell is connected with the drill bit base; a metal seal ring is configured to seal a space formed between the outer shell and the drill collar nipple, a sealed space is formed among the drill collar nipple, the outer shell and the drill bit base; the woven metal ring is placed between the helical guideway and the drill bit base configured to absorb an axial impact vibration.

Classes IPC  ?

• E21B 17/07 - Joints télescopiques permettant de faire varier les longueurs de trains de tigesAmortisseurs

Abrégé

Disclosed is a large-span false roof structure of a downward horizontal approach filling method, the structure comprising a cemented filling body, a prefabricated framework, and fixing anchor rods (4), wherein the prefabricated framework comprises an arc-shaped net rack (6), rectangular net racks (5), a pre-tensile stress steel bar (3), steel bar anchor rods and a metal net (7); the arc-shaped net rack (6) is arranged at the bottom of a filling false roof and is a double-layer net rack; the pre-tensile stress steel bar (3) is welded to two ends of a lower-layer steel bar at the bottom of the arc-shaped net rack (6), and the rectangular net racks (5) are arranged on two sides of the arc-shaped net rack (6); steel bar anchor rods I (1) are welded to the rectangular net racks (5), and steel bar anchor rods II (2) are welded to the arc-shaped net rack (6); and the rectangular net racks (5) are fixed to a side wall by means of the fixing anchor rods (4), the metal net (7) is arranged on back sides of the rectangular net racks (5) and an upper portion of the pre-tensile stress steel bar (3), and the arranged prefabricated framework is filled with the cemented filling body. The structure has the advantages such as being reasonable in terms of structure, high in terms of strength, and good in terms of safety, the approach size can be effectively increased on the basis that safety is guaranteed, thereby significantly improving the mining efficiency, and the structure is particularly suitable for deep mining. Further disclosed is a construction method using the structure.

Classes IPC  ?

• E21D 11/00 - Revêtement de tunnels, galeries ou autres cavités souterraines, p. ex. de vastes chambres souterrainesRevêtements à cet effetLeur exécution sur place, p. ex. par assemblage

Abrégé

A method and system of robotic arm safety detection based on EtherCAT automation are provided. The method includes: issuing a control data through the protocol module to control the robotic arm to complete an automation operation process by the control system module, and receiving joint data fed back in real-time of the sensor module; acquiring a real-time data of the robotic arm by the data capture module; wherein the real-time data includes protocol data and joint data; the joint data is acquired by the data capture module through the sensor module; performing a protocol data rule matching and physical process detection by the intrusion detection module based on the real-time data, and obtaining an intrusion detection result; wherein the intrusion detection result is configured to detect whether an intrusion behavior occurs during a normal operation of the robotic arm.

Classes IPC  ?

• B25J 9/16 - Commandes à programme

Abrégé

The present application provides a time domain resource configuration method and apparatus, an electronic device, and a storage medium. The method comprises: obtaining an error covariance of clock synchronization precision; constructing a time domain resource configuration optimization problem on the basis of the error covariance of the clock synchronization precision, a time-preserving band length, and a data packet arrival rate, wherein the time domain resource configuration optimization problem is a problem of maximizing network throughput under the condition of ensuring the clock synchronization precision; solving the time domain resource configuration optimization problem to obtain the data packet arrival rate; and determining the network throughput on the basis of the data packet arrival rate and the time-preserving band length. According to the time domain resource configuration method and apparatus, the electronic device, and the storage medium provided in the present application, the maximized network throughput is calculated on the basis of the time-preserving band length and the data packet arrival rate obtained by solving the time domain resource configuration optimization problem, and the maximized network throughput reflects the configuration of time domain resources, so that optimization of the time domain resource configuration is achieved.

Classes IPC  ?

• H04W 72/04 - Affectation de ressources sans fil
• H04W 72/08 - Affectation de ressources sans fil sur la base de critères de qualité
• H04W 56/00 - Dispositions de synchronisation
• G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p. ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle
• G06F 17/18 - Opérations mathématiques complexes pour l'évaluation de données statistiques
• G06F 111/04 - CAO basée sur les contraintes
• G06F 111/08 - CAO probabiliste ou stochastique

Abrégé

A thin metal strip continuous casting method using momentum flow distribution, comprising the steps of: adjusting the position of a flow distribution device (2), and starting a double-roller thin strip continuous casting apparatus; molten metal (3) forming a uniform sheet-shaped molten metal flow (4) having an initial momentum after the molten metal (3) passes through the flow distribution device; the sheet-shaped molten metal flow entering a molten pool (5) at a superheat degree of 50-100°C and an initial velocity of 0.5-2 m/s, wherein the flow distribution device is spaced apart from the molten pool; under the action of the initial velocity of the molten metal and in the molten pool, forming a whirlpool, which is adjacent to surfaces of two cooling rollers and has a momentum stirring action; and completing the solidification of the molten metal under the momentum stirring action of the whirlpool along with the rotation of the two cooling rollers. In the method, a whirlpool, which is adjacent to surfaces of cooling rollers and has a momentum stirring action, is formed in a molten pool by means of the kinetic energy of molten metal, such that equiaxed crystals can be prepared when a superheat degree is as high as 50-100°C, and the proportion of equiaxed crystals can be increased to 100%, thereby refining crystal grains and alleviating segregation.

Classes IPC  ?

• B22D 11/06 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules dont les parois se déplacent, p. ex. entre des rouleaux, des plaques, des courroies, des chenilles
• B22D 11/103 - Répartition du métal liquide, p. ex. en utilisant des goulottes, des flotteurs, des distributeurs

Abrégé

The present invention provides a high-strength and high-plasticity titanium matrix composite and a preparation method thereof. The preparation method includes: preparing high-oxygen hydride-dehydride titanium powder using a high-temperature rotary ball grinding treatment process, in which the prepared hydride-dehydride titanium powder has a particle size of 10-40 μm, and has an oxygen content of 0.8-1.5 wt. %; preparing high-purity ultra-fine oxygen adsorbent powder using a wet grinding method of high-energy vibration ball grinding treatment process; in which a purity of the oxygen adsorbent powder is ≥99.9%, and a particle size of the oxygen adsorbent powder is ≤8 μm; mixing the high-oxygen hydride-dehydride titanium powder with the oxygen adsorbent powder in a protective atmosphere, and then press-forming the powder obtained after mixing to obtain a raw material blank; and performing atmosphere protective sintering treatment on the raw material blank to obtain a titanium matrix composite. The method prepares a titanium matrix composite reinforced by in-situ self-generating multi-scale Ca—Ti—O, TiC, TiB particles. The microstructure and grains are effectively refined, and the strength and plasticity of the material are significantly improved.

Classes IPC  ?

• B22F 3/10 - Frittage seul
• B22F 1/05 - Poudres métalliques caractérisées par la dimension ou la surface spécifique des particules
• B22F 1/12 - Poudres métalliques contenant des particules non métalliques
• B22F 9/04 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau solide, p. ex. par broyage, meulage ou écrasement à la meule

Abrégé

The present invention provides a treatment method for high-phosphorus iron ore, comprising: mixing high-phosphorus iron ore, a reducing agent, a dephosphorization agent, a binder, and water to obtain a mixture; performing ball press on the mixture to obtain a dry ball; performing reduction roasting on the dry ball in a rotary kiln to obtain roasted ore; and crushing the roasted ore, and then performing ore grinding and magnetic separation to obtain powder reduced iron. In the treatment method for high-phosphorus iron ore provided by the present invention, the rotary kiln is used as a main roasting apparatus; phosphorus in the high-phosphorus iron ore can be effectively removed; moreover, the powder reduced iron high in iron grade and low in phosphorus content is produced; and the whole technological process is simple and easy to implement, and the economic value is high.

Classes IPC  ?

• C21B 13/08 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs dans des fours tournants
• C22B 1/242 - AgglutinationBriquetage avec des liants
• C22B 1/02 - Procédés de grillage

Abrégé

Disclosed is a heating device, including a first and second ends of an indoor water supply pipe communicated with a main water supply pipe and a water supply end of a radiator; a valve, a first temperature sensor, a heating and control module and a third temperature sensor arranged between the first and second ends; two ends of the heating and control module connected with a bypass pipe; a first and second ends of an indoor return water pipe communicated with a main return water pipe and a return water end of the radiator; a three-way valve and a second temperature sensor arranged between the first end and the second end of the indoor return water pipe; and a first and second ends of the water pump communicated with a third end of the three-way valve and the indoor water supply pipe.

Classes IPC  ?

• F24D 3/10 - Distribution par conduits, p. ex. comportant des accumulateurs de chaleur, des vases d'expansion
• F24D 19/10 - Aménagements ou montage des dispositifs de commande ou de sécurité
• F24D 13/04 - Systèmes de chauffage électrique utilisant le chauffage électrique d'un fluide échangeur de chaleur dans des éléments du système séparés
• G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques

Abrégé

The present invention belongs to the field of treatment of urban organic wastes, and specifically relates to a high-value treatment system or method for urban wet garbage. According to the present invention, through the steps such as oil extraction, high-efficiency hydrolysis, high-value biological conversion, simultaneous recovery of released nitrogen and phosphorus and deep utilization of residues, urban wet garbage is converted into acetic acid by high-value treatment, produced by-products including carbon dioxide and hydrogen are biologically converted into acetic acid, released nitrogen and phosphorus are recycled into slow-release fertilizers, and solid residues are used to prepare materials capable of promoting conversion of the wet garbage into acetic acid through high-value treatment. According to the present invention, not only can high-value treatment of the urban wet garbage be realized, but also produced waste gases and waste residues are recycled.

Classes IPC  ?

• C02F 11/04 - Traitement anaérobieProduction du méthane par de tels procédés
• C02F 11/143 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement avec addition de produits chimiques utilisant des substances inorganiques
• C02F 11/147 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement avec addition de produits chimiques utilisant des substances organiques
• C12P 7/54 - Acide acétique

Abrégé

The present disclosure provides a coal bump control method for sectional hydraulic fracturing regions of a near vertical ultra thick coal seam. The method includes: deepening a main shaft from a mining level to a fracturing level; excavating a cross-hole from a roof rock layer of a coal seam at the fracturing level to enter a coal seam being mined, and excavating a roadway along the strike of the coal seam; and drilling hydraulic fracturing boreholes in a dedicated fracturing roadway along an inclination angle of the coal seam to the coal seam above the roadway, wherein the length of the borehole makes the borehole in communication with a goaf, and the spacing of the boreholes along the strike and the sectional spacing of the boreholes in an inclination direction are designed according to the parameters of fracturing equipments and the fracturing length.

Classes IPC  ?

• E21C 37/12 - Autres procédés ou dispositifs d'abattage avec ou sans chargement en employant une pression hydraulique ou pneumatique dans un trou foré en injectant dans le trou foré un liquide, soit sous haute pression initiale, soit soumis ultérieurement à une haute pression, p. ex. au moyen d'impulsion, au moyen de cartouches d'explosif agissant sur le liquide

Abrégé

Disclosed is a metal-semiconductor contact structure based on two-dimensional (2D) semimetal electrodes, including a semiconductor module and a metal electrode module, where the semiconductor module is a 2D semiconductor material, and the metal electrode module is a 2D semimetal material with no dangling bonds on its surface; the 2D semiconductor material and the 2D semimetal material are interfaced with a Van der Waals interface with a surface roughness of 0.01-1 nanometer (nm) and no dangling bonds on the surface, the 2D semiconductor material and the 2D semimetal material are spaced less than 1 nm apart.

Classes IPC  ?

• H01L 29/24 - Corps semi-conducteurs caractérisés par les matériaux dont ils sont constitués comprenant, à part les matériaux de dopage ou autres impuretés, uniquement des matériaux semi-conducteurs inorganiques non couverts par les groupes , ,  ou
• H01L 29/47 - Electrodes à barrière de Schottky
• H01L 29/76 - Dispositifs unipolaires
• H01L 29/06 - Corps semi-conducteurs caractérisés par les formes, les dimensions relatives, ou les dispositions des régions semi-conductrices
• H01L 29/40 - Electrodes
• H01L 29/43 - Electrodes caractérisées par les matériaux dont elles sont constituées
• H01L 29/78 - Transistors à effet de champ l'effet de champ étant produit par une porte isolée
• H01L 29/417 - Electrodes caractérisées par leur forme, leurs dimensions relatives ou leur disposition relative transportant le courant à redresser, à amplifier ou à commuter
• H01L 31/0224 - Electrodes
• H01L 21/74 - Réalisation de régions profondes à haute concentration en impuretés, p. ex. couches collectrices profondes, connexions internes

Abrégé

A secondary cooling control method for reinforcing surface solidification structure of microalloyed steel continuous casting bloom includes: in situ observing precipitation behavior of secondary phase particles of the microalloyed steel, and determining a concentrated precipitation temperature range; cooling the microalloyed steel at different cooling rates, obtaining a particle size and a volume fraction of the secondary phase particles of the microalloyed steel at different cooling rates; determining an optimal average cooling rate; determining an optimal average cooling rate r; determining an optimal average cooling rate; and determining an optimal average cooling rate range through intersection of the three optimal average cooling rates whereby the continuous casting secondary cooling is optimized. The present invention can enhance the surface solidification structure of continuous casting bloom and reduce surface and subsurface cracks of the microalloyed steel continuous casting bloom.

Classes IPC  ?

• B22D 11/22 - Commande ou régulation des opérations ou du fonctionnement du refroidissement des barres coulées ou des moules
• C21D 6/02 - Durcissement par précipitation
• B22D 11/00 - Coulée continue des métaux, c.-à-d. en longueur indéfinie

Abrégé

A method for monitoring hydraulic fracturing range of a surface vertical shaft is provided by the present disclosure, belonging to the technical field of ultrahigh-pressure hydraulic fracturing monitoring of the coal mine vertical shafts. The method comprises the following steps: connecting, by an eight-thread communication cable, a high-precision portable micro-seismic monitoring acquisition instrument to a high-sensitivity deep hole sensor, and performing uphole-crosshole-downhole monitoring simultaneously, specifically as follows: providing uphole-crosshole-downhole monitoring holes respectively, and installing deep hole geophones in the monitoring holes; then laying communication cables uphole-crosshole-downhole to connect the geophones to the portable high-precision micro-seismic acquisition instrument respectively; then performing high-precision positioning on the fissure development range by monitoring recorded events and time, thus determining the directions and ranges of a main fracture and secondary induced fractures of hydraulic fractures.

Classes IPC  ?

• G01V 1/40 - SéismologieProspection ou détection sismique ou acoustique spécialement adaptées au carottage
• E21B 43/26 - Procédés pour activer la production par formation de crevasses ou de fractures
• G01V 1/28 - Traitement des données sismiques, p. ex. pour l’interprétation ou pour la détection d’événements
• E21C 41/18 - Procédés d'exploitation minière souterraineTracés à cet effet pour la lignite ou le charbon

Abrégé

A method of making steel by deeply dephosphorization in a hot metal tank and decarburization using semi-steel with nearly zero phosphorus load in a converter includes the following steps: putting an efficient dephosphorization agent into the hot metal tank in advance, and conducting dephosphorization during blast furnace tapping and transportation of blast furnace hot metal by the hot metal tank to obtain semi-steel with [P] less than 0.04 wt. % and [C] greater than or equal to 3.5 wt. %; and removing dephosphorization slag, and pouring the semi-steel into the converter for decarburization to obtain molten steel. The efficient dephosphorization agent includes iron oxide scale, lime, and composite calcium ferrite. According to the method, a phosphorus content of the blast furnace hot metal is reduced to be less than or equal to 0.04 wt. % through the efficient dephosphorization agent.

Classes IPC  ?

• C21C 7/064 - DéphosphorationDésulfuration
• C21C 7/068 - Décarburation
• C21C 1/02 - Déphosphoration ou désulfuration

Abrégé

5. Therefore, the composite calcium ferrite has a lower melting point, a higher lime dissolution efficiency, and better fluxing and dephosphorization effects during primary smelting and refining of molten steel, and has broad prospects for use in industry.

Classes IPC  ?

• C04B 35/26 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base de ferrites

Abrégé

Disclosed is a method for recycling a coal liquefaction residue. The method includes S1, drying a coal liquefaction residue and pulverizing to obtain a pulverized coal liquefaction residue; S2, subjecting the pulverized coal liquefaction residue to a solvothermal extraction in an autoclave to obtain an extract liquid and a residue; S3, distilling the extract liquid and recovering an organic solvent to obtain a solid extract.

Classes IPC  ?

• C10L 5/48 - Combustibles solides à base essentielle de matières d'origine non minérale de résidus ou de déchets industriels
• C04B 33/04 - ArgileKaolin
• C04B 33/135 - Résidus de combustion, p. ex. cendres volantes, résidus d'incinération
• C04B 33/32 - Procédés de cuisson
• C04B 35/626 - Préparation ou traitement des poudres individuellement ou par fournées
• C10L 5/08 - Procédés de fabrication de briquettes sans l'aide de liants étrangers
• C10L 5/36 - Forme

Abrégé

A flapping-wing aerial robot formation control method includes: determining a trailing vortex generation mechanism, an energy saving principle and a trailing vortex attenuation mechanism of the formation flight of a group of wild geese in accordance with the pattern of the formation flight of the group of wild geese; determining the formation flight of a group of flapping-wing aerial robots and a formation switching solution in accordance with the trailing vortex generation mechanism, energy saving principle and trailing vortex attenuation mechanism of the formation flight of the group of wild geese in conjunction with the flapping characteristic of a flapping-wing aerial robot from the perspective of energy consumption equalization and energy saving; and carrying out formation keeping control and formation reconfiguration control in accordance with the formation flight of the group of flapping-wing aerial robots and the formation switching solution by controlling positions of the group of flapping-wing aerial robots.

Classes IPC  ?

• G05D 1/10 - Commande de la position ou du cap dans les trois dimensions simultanément
• B64C 33/00 - Ornithoptères

Abrégé

A direction-finding and positioning system of electromagnetic emission of coal or rock fracture includes a three-axis electromagnetic sensor array, a signal acquisition module and a direction-finding and positioning terminal; the three-axis electromagnetic sensor array is composed of at least four three-axis electromagnetic sensors configured to synchronously sense magnetic field strength in three-axis direction based on a tunnel magneto resistance technology, and obtain a real magnetic field vector in space by measuring; the signal acquisition module is configured to acquire magnetic field vector variable information of multiple measuring points in real-time, and after extracting magnetic field vector variable parameters, transmitting the magnetic field vector variable parameters to the direction-finding and positioning terminal; the direction-finding and positioning terminal is configured to perform direction-finding and positioning calculations according to the magnetic field vector variable parameters received, and performing a three-dimensional dynamic visual display to positioning results, positioning time, and positioning coordinates.

Classes IPC  ?

• G01V 3/12 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation fonctionnant par ondes électromagnétiques
• G01V 3/38 - Traitement de données, p. ex. pour l'analyse, pour l'interprétation ou pour la correction
• G01V 3/165 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation spécialement adaptée à l'utilisation pendant le transport, p. ex. par une personne, un véhicule ou un bateau fonctionnant au moyen de champs magnétiques ou électriques produits ou modifiés par l'objet ou par le dispositif de détection

Abrégé

In a general aspect, a ceramic thin film with nanotwinned regions at a tunable volume fraction is manufactured. In some aspects, a method for manufacturing a ceramic thin film on a surface of a substrate in an evacuated chamber is disclosed. The ceramic thin film includes crystalline grains; and each of the crystalline grains includes one or more nanotwinned regions. The one or more nanotwinned regions have a volume fraction in a range of 30-80% of the ceramic thin film. The ceramic thin film comprises titanium, nitrogen, and boron. A plurality of targets including a plurality of sputtering materials is prepared. A gas atmosphere in the evacuated chamber is formed. Electric power is supplied to the plurality of targets to cause co-sputtering of the plurality of sputtering materials to form the ceramic thin film with the one or more nanotwinned regions.

Classes IPC  ?

• C23C 14/34 - Pulvérisation cathodique
• C23C 14/06 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le matériau de revêtement
• C23C 14/00 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement
• C30B 29/38 - Nitrures
• C30B 25/06 - Croissance d'une couche épitaxiale par pulvérisation réactive
• C30B 25/18 - Croissance d'une couche épitaxiale caractérisée par le substrat
• C01B 21/06 - Composés binaires de l'azote avec les métaux, le silicium ou le bore

Abrégé

In a general aspect, a ceramic thin film with nanotwinned regions at a tunable volume fraction is manufactured. In some aspects, a method for manufacturing a ceramic thin film on a surface of a substrate in an evacuated chamber is disclosed. The ceramic thin film includes crystalline grains; and each of the crystalline grains includes one or more nanotwinned regions. The one or more nanotwinned regions have a volume fraction in a range of 30-80%of the ceramic thin film. A plurality of targets including a plurality of sputtering materials is prepared. A gas atmosphere in the evacuated chamber is formed. Electric power is supplied to the plurality of targets to cause co-sputtering of the plurality of sputtering materials to form the ceramic thin film with the one or more nanotwinned regions.

Classes IPC  ?

• C23C 14/35 - Pulvérisation cathodique par application d'un champ magnétique, p. ex. pulvérisation au moyen d'un magnétron

Abrégé

A pull cord type turning mechanism for a butterfly-inspired flapping-wing aerial robot includes a motor, a cord reel, a cord reel gear, a potentiometer gear, a potentiometer, a control module, and a power supply. The control module is connected to the motor and the potentiometer. A rotary shaft of the motor is connected to the cord reel, the cord reel is coaxially connected to the cord reel gear, the cord reel gear is meshed with the potentiometer gear, and the potentiometer gear is connected to a rotary shaft of the potentiometer. The cord reel gear is provided with two cord grooves and two pull cords. One ends of the two pull cords are fixed in the two cord grooves, respectively, and the other ends thereof are fixed at the tips of front wings of two sides of the butterfly-inspired flapping-wing aerial robot, respectively.

Classes IPC  ?

• B64C 33/02 - AilesMécanismes d'actionnement des ailes
• B64U 10/40 - Ornithoptères
• B64U 50/19 - Propulsion utilisant des moteurs électriques
• F16H 19/00 - Transmissions comportant essentiellement et uniquement des engrenages ou des organes de friction et qui ne peuvent transmettre un mouvement rotatif indéfini

Abrégé

The present application provides a 5G and TSN joint scheduling method based on wireless channel information. In the present invention, adjustment is made by configuration of retransmission factors under different channel conditions, and time jitter caused by transmission of data packets in a 5G system is eliminated. Thus, a definitive end-to-end time delay guarantee for time-triggered service flows is provided. In a 5G and TSN joint time scheduling strategy provided by the present invention, queue management in a TSN domain is no longer carried out according to a TSN first-come-first-served mechanism. Instead, given that periods of service flows are distinguished, queuing priority is defined according to the performance of channel conditions of 5G air interface resources allocated to the service flows. Regarding transmission time, in the TSN domain, of service flows having the same service priority, the time delay, in the TSN domain, of service flows corresponding to poor 5G air interface resource channel conditions is lower.

Classes IPC  ?

• H04W 72/12 - Planification du trafic sans fil
• H04W 28/02 - Gestion du trafic, p. ex. régulation de flux ou d'encombrement

Abrégé

An Artificial Intelligence (AI) engine-supporting downlink radio resource scheduling method and apparatus are provided. The AI engine-supporting downlink radio resource scheduling method includes: constructing an AI engine, establishing a Socket connection between an AI engine and an Open Air Interface (OAI) system, and configuring the AI engine into an OAI running environment to utilize the AI engine to replace a Round-Robin scheduling algorithm and a fair Round-Robin scheduling algorithm adopted by a Long Term Evolution (LTE) at a Media Access Control (MAC) layer in the OAI system for resource scheduling to take over a downlink radio resource scheduling process; sending scheduling information to the AI engine through Socket during the downlink radio resource scheduling process of the OAI system; and utilizing the AI engine to carry out resource allocation according to the scheduling information, and returning a resource allocation result to the OAI system.

Classes IPC  ?

• H04W 72/50 - Critères d’affectation ou de planification des ressources sans fil
• G06N 20/00 - Apprentissage automatique
• H04L 47/62 - Ordonnancement des files d’attente caractérisé par des critères d’ordonnancement
• H04W 72/23 - Canaux de commande ou signalisation pour la gestion des ressources dans le sens descendant de la liaison sans fil, c.-à-d. en direction du terminal

Abrégé

Provided in the present invention is a method for treating high-phosphorus oolitic iron ores. The method comprises the following steps: A) mixing the high-phosphorus oolitic iron ores, a dephosphorizing agent and water, and pressing the mixture into pellets to obtain mixed pellets, wherein the dephosphorizing agent comprises calcium carbonate and calcium fluoride, and the mass ratio of the calcium carbonate to the calcium fluoride is 1: (0.15-0.30); B) drying the mixed pellets, and subjecting same to oxidizing roasting to obtain oxidized roasted pellets; C) subjecting the oxidized roasted pellets to reduction roasting in a reducing atmosphere to obtain reduced pellets; and D) isolating air from the reduced pellets, and cooling the reduced pellets to room temperature with the air isolated, followed by ore grinding-magnetic separation to obtain a reduced iron product. In the present invention, the technological process is simple, the removal rate of phosphorus from the high-phosphorus oolitic iron ores is high, the iron grade and recovery rate of the powdery reduced iron are high, and the reduction effect is not affected due to the change in the iron grade and phosphorus content of the raw ore within a certain range.

Classes IPC  ?

• C22B 1/24 - AgglutinationBriquetage
• C22B 1/02 - Procédés de grillage
• C21B 13/00 - Fabrication de fer spongieux ou d'acier liquide par des procédés directs

Abrégé

A method for predicting a yield of calcium in a calcium treatment process based on deep neural network as provided relates to a calcium treatment process of molten steel refining in the field of iron and steel metallurgy, and includes steps of: obtaining production and operation data information of each of charges and thereby constructing a dataset; training and testing a deep neural network based on constructed dataset to establish a prediction model; and based on the prediction model, predicting and calculating current yield of calcium by taking actual production and operation data information of each charge as input. The method can predict the yield of calcium in the calcium treatment process, is favorable for accurately controlling a calcium content of steel, can stably control the calcium treatment process, improve the calcium treatment effect, improve the product quality, and ensure the production stability.

Classes IPC  ?

• G16C 20/10 - Analyse ou conception des réactions, des synthèses ou des procédés chimiques
• G16C 20/70 - Apprentissage automatique, exploration de données ou chimiométrie

Abrégé

22. The refractory material has a low amount of a high-temperature liquid phase, a uniform pore structure, and good thermal shock stability; can be widely used in steel-making production lines and also in the refractory linings of rotary kilns, and has good erosion resistance and low thermal conductivity; and the performance thereof is obviously superior to that of many existing refractory materials such as silicon carbide-mullite bricks and magnesia-alumina spinel bricks.

Classes IPC  ?

• C04B 35/10 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxyde d'aluminium
• C04B 35/66 - Réfractaires monolithiques ou mortiers réfractaires, y compris ceux contenant de l'argile
• C04B 35/645 - Frittage sous pression

Abrégé

22. The refractory material prepared by the present application has a high purity, good erosion resistance, good slag permeability resistance and high thermal shock stability, reduces the amount of refractory material eroded into molten steel, reduces the pollution of the molten steel, and can also give full play to the performance advantages of high-purity raw materials.

Classes IPC  ?

• C04B 35/10 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxyde d'aluminium
• C04B 35/66 - Réfractaires monolithiques ou mortiers réfractaires, y compris ceux contenant de l'argile
• C04B 35/645 - Frittage sous pression

Abrégé

Disclosed are a CA6-based thermally insulating refractory material with a medium volume density, a preparation method therefor, and the use thereof. The CA6-based thermally insulating refractory material with a medium volume density in the present invention has phases comprising CA6 and one or more selected from C2M2A14, CM2A8, magnesium aluminate spinel, and corundum, and the refractory material has a high purity, good high temperature stability, a uniform structure, stable performance, a relatively low thermal conductivity, and good corrosion resistance to a metal melt, slag, etc.

Classes IPC  ?

• C04B 35/10 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxyde d'aluminium
• C04B 35/66 - Réfractaires monolithiques ou mortiers réfractaires, y compris ceux contenant de l'argile
• C04B 35/645 - Frittage sous pression

Abrégé

A screw smelting machine melts raw materials with a different chemical ratio in a mixing funnel in a feeding order to prevent the long-range diffusion of a melt, and controls outflow at a suitable speed. A centrifugal casting machine solidifies the melt with the ingredients gradient varying into a radial ingredient gradient material by a centrifugal casting style. A temperature sensor monitors temperature of an outer surface of a centrifuge cavity of the centrifugal casting machine during centrifugal casting, and transmits the temperature to a control platform. The control platform determines an optimal flow rate of the melt at an end of screw rod according to ingredient gradient of ingredient radial-gradient pipe materials and a thickness of each component gradient material required with preparation, in combination with a real-time data fed back from the temperature sensor, and feeds back to a feeding end.

Classes IPC  ?

• B22D 13/02 - Coulée par centrifugationCoulée utilisant la force centrifuge de pièces longues, pleines ou creuses, p. ex. de tuyaux, coulées dans des moules tournant autour de leur axe longitudinal
• B22D 13/10 - Accessoires pour machines à couler par centrifugation, p. ex. moules, leur garnissageMoyens pour l'alimentation en métal liquide, pour le nettoyage des moules ou pour l'extraction des pièces
• B22D 13/12 - Commande, surveillance, spécialement adaptées à la coulée centrifuge, p. ex. pour des raisons de sécurité
• B29C 41/04 - Coulée par rotation ou par centrifugation, c.-à-d. revêtement de la surface interne d'un moule par rotation du moule
• B29C 41/36 - Alimentation en matière à mouler d'un moule, d'un noyau ou d'un autre support
• B22D 13/04 - Coulée par centrifugationCoulée utilisant la force centrifuge de pièces peu profondes ou creuses, p. ex. de roues ou couronnes, coulées dans des moules tournant autour de leur axe de symétrie
• B29C 39/08 - Moulage par coulée, c.-à-d. en introduisant la matière à mouler dans un moule ou entre des surfaces enveloppantes sans pression significative de moulageAppareils à cet effet pour la fabrication d'objets de longueur définie, c.-à-d. d'objets séparés avec des moules mobiles en introduisant la matière dans le moule par force centrifuge
• B29C 39/22 - Éléments constitutifs, détails ou accessoiresOpérations auxiliaires
• C03B 19/02 - Autres méthodes de façonnage du verre par coulée

Abrégé

2322322 calculated according to parts by mass to be 45.5-95.5%:2.0-8.4%:0-50%; and the chemical composition are placed into a high-temperature furnace and a mold for hot-pressing, molding and sintering, wherein the temperature is increased while hot-pressing is carried out, the maximum temperature is 1550-1800°C, and the hot-pressing strength is 0.5-30 MPa. In the present invention, when no sintering agent is added, a hot-pressing sintering process is employed according to a proportion to obtain a high-purity compact calcium hexa-aluminate-based refractory material, and the refractory material has excellent resistance to molten steel erosion and thermal shock stability, and can be widely applied in metallurgy, building materials and petrochemical industries as well as other industries. The preparation method is scientific and reasonable, product purity is high, and the prepared refractory material product can increase a device operation period; in addition, production costs are reduced, and energy-saving and emission-reducing effects are achieved.

Classes IPC  ?

• C04B 35/44 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'aluminates
• C04B 35/66 - Réfractaires monolithiques ou mortiers réfractaires, y compris ceux contenant de l'argile
• C04B 35/645 - Frittage sous pression

Abrégé

The present disclosure provides a method for co-extraction of vanadium, titanium and chromium from vanadium slag. The method selectively reduces pyroxene and fayalite wrapped on spinel through low-temperature hydrogen reduction, iron removal by ferric chloride, and low-temperature leaching of the vanadium slag by oxalic acid, thereby destroying a structure of the spinel, dissociating a spinel phase and a silicate phase, and fully exposing the spinel phase. The method also directly leaches the vanadium slag at a low temperature by acidity and strong complexation of the oxalic acid, and destroys the structure of the spinel, such that vanadium, titanium, chromium and oxalate are complexed into a solution to co-extract vanadium, titanium and chromium. The present disclosure extracts vanadium, titanium and chromium from the vanadium slag, with a leaching rate each being greater than 99%.

Classes IPC  ?

• C22B 7/04 - Mise en œuvre des scories
• C22B 7/00 - Mise en œuvre de matériaux autres que des minerais, p. ex. des rognures, pour produire des métaux non ferreux ou leurs composés
• C22B 34/12 - Obtention du titane
• C22B 34/22 - Obtention du vanadium
• C22B 34/32 - Obtention du chrome

Abrégé

2 and the height of the oxygen lance position according to the fire point area temperature changes and process requirements in different smelting stages, so that the secondary smelting system interlockingly and dynamically controls the fire point area temperature and the molten pool heating rate.

Classes IPC  ?

• C21C 5/32 - Soufflage par le dessus
• C21C 5/46 - Parties constitutives ou accessoires

Abrégé

A machine learning-based method for designing a high-strength high-toughness steel, including: (S1) obtaining data and filling in missing parts to form a data set; (S2) selecting feature data in the data set to form a standard data set; (S3) constructing two machine learning models of the high-strength high-toughness steel; (S4) completing training after the two models are evaluated to be qualified; (S5) finding frontier points, drawing a Pareto front, and distinguishing a known region and a feature space; (S6) in the feature space, setting a step for the feature data, drawing a grid space, and performing multiple training predictions on each grid point by using the models, to obtain predicted Gaussian distributions of two objectives; and (S7) searching for an expected improvement point through an efficient global optimization algorithm, and obtaining design parameter values of corresponding features.

Classes IPC  ?

• G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p. ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle
• G06F 111/06 - Optimisation multi-objectif, p. ex. optimisation de Pareto utilisant le recuit simulé, les algorithmes de colonies de fourmis ou les algorithmes génétiques

Abrégé

There is provided a method of dynamic control for a bottom blowing O2—CO2—CaO converter steelmaking process. In the process, O2 is adopted as a top blowing gas, a mixed gas O2+CO2 is adopted as a bottom blowing carrier gas to inject lime powders into the converter from a bottom blowing tuyere. The ingredients of the molten steel in the converter steelmaking process are predicted based on the conservation of matter, in combination with the ingredient data of charged molten iron, the ingredient data of the converter gas in the converter blowing process, and working conditions of the bottom blowing device. The top blowing oxygen amount, the bottom blowing gas ratio and the flow rate of lime powder are dynamically adjusted stage by stage according to requirements for target ingredients at the end point of blowing.

Classes IPC  ?

• C21C 5/35 - Soufflage par le dessus et à travers le bain
• C21C 7/00 - Traitement à l'état liquide des alliages ferreux, p. ex. des aciers, non couverts par les groupes

Abrégé

Disclosed are a superhydrophobic coating with abrasion resistance and a preparation method thereof. The coating has a composite structure formed by a nanohybrid composed of nano-SiO2 and multi-wallet carbon nanotubes, and a resin as a matrix.

Classes IPC  ?

• C09D 5/16 - Peintures antisalissuresPeintures subaquatiques
• C09D 7/61 - Adjuvants non macromoléculaires inorganiques
• C09D 7/40 - Adjuvants
• C09D 7/80 - Procédés pour l'incorporation d'ingrédients
• C01B 32/168 - Post-traitement
• C01B 33/12 - SiliceSes hydrates, p. ex. acide silicique lépidoïque

Abrégé

Disclosed in the present invention is a metal-organic composite nano-drug, comprising a heterostructural metal-based nanoparticle treated by a first surface modifier and a cross-linking agent in sequence, and a pharmaceutical ingredient compound treated by a second surface modifier. The nanoparticle is coupled with the pharmaceutical ingredient compound by means of the cross-linking agent, the pharmaceutical ingredient compound is ginsenoside, and the nanoparticle is Au@CoFeB. Further disclosed in the present invention are preparation and application of the nano-drug. The nano-drug provided by the present invention can well inhibit the development of liver cancer, and has an in-vitro and in-vivo molecular image tracing function.

Classes IPC  ?

• A61K 47/69 - Préparations médicinales caractérisées par les ingrédients non actifs utilisés, p. ex. les supports ou les additifs inertesAgents de ciblage ou de modification chimiquement liés à l’ingrédient actif l’ingrédient non actif étant chimiquement lié à l’ingrédient actif, p. ex. conjugués polymère-médicament le conjugué étant caractérisé par sa forme physique ou sa forme galénique, p. ex. émulsion, particule, complexe d’inclusion, stent ou kit
• A61K 47/52 - Préparations médicinales caractérisées par les ingrédients non actifs utilisés, p. ex. les supports ou les additifs inertesAgents de ciblage ou de modification chimiquement liés à l’ingrédient actif l’ingrédient non actif étant chimiquement lié à l’ingrédient actif, p. ex. conjugués polymère-médicament l’ingrédient non actif étant un agent de modification l’agent de modification étant un composé inorganique, p. ex. un ion inorganique complexé avec l’ingrédient actif
• A61K 47/54 - Préparations médicinales caractérisées par les ingrédients non actifs utilisés, p. ex. les supports ou les additifs inertesAgents de ciblage ou de modification chimiquement liés à l’ingrédient actif l’ingrédient non actif étant chimiquement lié à l’ingrédient actif, p. ex. conjugués polymère-médicament l’ingrédient non actif étant un agent de modification l’agent de modification étant un composé organique
• A61K 31/704 - Composés ayant des radicaux saccharide liés à des composés non-saccharide par des liaisons glycosidiques liés à un composé carbocyclique, p. ex. phloridzine liés à un système carbocyclique condensé, p. ex. sennosides, thiocolchicosides, escine, daunorubicine, digitoxine
• A61K 49/04 - Préparations de contraste pour rayons X
• A61P 35/00 - Agents anticancéreux
• B82Y 5/00 - Nanobiotechnologie ou nanomédecine, p. ex. génie protéique ou administration de médicaments
• B82Y 40/00 - Fabrication ou traitement des nanostructures

Abrégé

The present invention relates to the field of organic waste treatment of urban waste, and in particular, to a high-value treatment system or method for urban wet waste. In the present invention, by means of steps such as oil extraction, high-efficiency hydrolysis, high-value biological conversion, simultaneous recovery of released nitrogen and phosphorus and deep utilization of residues, the high-value treatment of urban wet waste to acetic acid, the biological conversion of generated by-products, i.e. carbon dioxide and hydrogen, to acetic acid, the recovery of released nitrogen and phosphorus to a sustained-release fertilizer, and the preparation of solid residues into a material for promoting the high-value treatment of wet waste to acetic acid are realized. The present invention can not only realize the high-value treatment of urban wet waste, but also reuse generated waste gases and waste residues.

Classes IPC  ?

• C02F 11/04 - Traitement anaérobieProduction du méthane par de tels procédés
• C02F 11/143 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement avec addition de produits chimiques utilisant des substances inorganiques
• C02F 11/12 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement
• C02F 11/147 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement avec addition de produits chimiques utilisant des substances organiques
• C12P 7/40 - Préparation de composés organiques contenant de l'oxygène contenant un groupe carboxyle
• C05G 1/00 - Mélanges d'engrais faisant partie individuellement de différentes sous-classes de

Abrégé

An optimization method for a directional preparation technique and efficient use of semi-coke for blast furnace injection. Firstly, the volatile and the ash content of target semi-coke are preset, and then the volatile and the ash removal percentages of a raw coal are calculated; after ash removal, several sets of dry distillation carbonization temperatures and carbonization times are obtained according to the volatile removal percentage, and the relationships between a combustion rate, abrasiveness, explosiveness and jet flow property and the carbonization temperature are respectively established to obtain the optimal actual carbonization temperature; and semi-coke for blast furnace injection is obtained at an actual carbonization temperature. The directional preparation is suitable for the semi-coke for blast furnace injection, and an optimal coal-compounding scheme is obtained, thus achieving the efficient and safe injection of blast furnace iron-making fuels, and energy conservation and emission reduction.

Classes IPC  ?

• C10B 57/02 - Procédés de carbonisation ou de cokéfaction à phases multiples
• C10B 53/04 - Distillation destructive spécialement conçue pour des matières premières solides particulières ou sous forme spéciale de charbon pulvérulent
• C10B 57/14 - Caractéristiques des procédés de carbonisation à basse température

Abrégé

An online learning system based on cloud-client integration multimodal analysis includes: an online learning module used for providing an online learning interface for a user and collecting image data, physiological data, posture data and interaction log data during an online learning process of the user; a multimodal data integration decision module used for preprocessing the image data, physiological data and posture data, extracting corresponding features, and making a comprehensive decision in combination with the interaction log data to obtain a current learning state of the user; a cloud-client integration system architecture module used for coordinating use of computing resources of a cloud server and a local client according to usage conditions of the cloud server and the local client, and visually displaying a progress of computing tasks; a system interaction adjustment module used for adjusting the online learning module according to the current learning state of the user.

Classes IPC  ?

• G09B 5/02 - Matériel à but éducatif à commande électrique avec présentation visuelle du sujet à étudier, p. ex. en utilisant une bande filmée
• G06N 20/00 - Apprentissage automatique
• G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
• G06K 9/46 - Extraction d'éléments ou de caractéristiques de l'image

Abrégé

A long-life service method for powder-bottom-injecting converter based on collaborative hot replacement of furnace bottom and bottom purging brick belongs to the field of steelmaking technologies using powder-bottom-injecting converters. According to equipment characteristics, process characteristics, and erosion characteristics of the powder-bottom-injecting converter, the design, arrangement, installation, use, maintenance, and replacement of the bottom purging/powder injection bricks are systematically optimized and improved, a technology of automatically detecting the erosion height of bottom purging bricks is adopted, and hot replacement of bottom purging/powder injection bricks and hot replacement of the converter furnace bottom are used collaboratively, which not only can prolong the service life of a single bottom purging/powder injection brick, but also can greatly prolong the overall life of the powder-bottom-injecting converter from 1000-3000 heats in the prior art to 6000-10000 heats. Hence, the life of the powder-bottom-injecting converter is as long as that of a conventional converter.

Classes IPC  ?

• C21C 5/46 - Parties constitutives ou accessoires
• C21C 5/48 - Fonds ou tuyères des convertisseurs
• F27D 3/16 - Introduction d'un jet de fluide ou d'un courant dans la charge
• C21C 5/30 - Réglage et commande du soufflage

Abrégé

A kiln system is provided, including a drying section, a preheating section, a firing section, a soaking section, a cooling section, and a decarburization section arranged between the drying section and the preheating section. The decarburization section includes an ignition zone, a hot air combustion/pyrolysis zone, and a waste heat recovery pipeline. A heat source is introduced into the ignition zone so that the temperature of the ceramsite of the raw materials with heating values in the zone is 400° C. to 900° C. The hot air combustion/pyrolysis zone is configured for combusting or pyrolyzing carbon-containing materials and organic components in the raw materials with heating values in the ceramsite. The waste heat recovery pipeline is configured for discharging decarburization exhaust gas and recovering heat released after the raw materials with heating values in the ceramsite are combusted or pyrolyzed in the decarburization exhaust gas.

Classes IPC  ?

• F27D 17/10 - Dispositions pour l’utilisation de la chaleur perdue
• F27B 9/12 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité avec dispositions particulières pour le préchauffage ou le refroidissement de la charge

Abrégé

A head-face dimension classification method based on three-dimensional point cloud coordinates, comprising: step 1: acquiring head-face three-dimensional point cloud data (1); step 2: defining a key parameter to obtain a radius at a key point (2); step 3: performing data processing to obtain a final head-face data model (3); and step 4: according to the final head-face data model, completing head dimension classification using principal component analysis (4), wherein step 3 comprises: step 31: denoising the acquired head-face three-dimensional point cloud data; step 32: for the denoised point cloud data, adjusting data model grid vertex coordinates; step 33: performing hole filling; and step 34: performing smoothing. According to the method, head-face shape information and curved surface information are comprehensively considered according to point cloud data obtained by three-dimensional scanning; by selecting a data processing template to complete a data processing procedure, data recovery and noise reduction effects are achieved, and the analysis efficiency is improved; in addition, principal component analysis is creatively performed on point cloud coordinates, so that the accuracy of head dimension classification is improved.

Classes IPC  ?

• G06K 9/80 - Combinaison du prétraitement de l'image et de fonctions de reconnaissance