Abrégé

The present invention relates to the field of resource utilization, and provides a method and an apparatus for separating iron from a nickel-iron alloy. The method comprises the following steps: roasting a nickel-iron alloy in a chlorine atmosphere, to obtain a ferrous chloride melt and a solid slag, and separating the ferrous chloride melt therefrom, the mass of chlorine being 0.8-1.5 times the mass of the nickel-iron alloy, and the roasting temperature being 600-850 °C. Chlorine is introduced into the ferrous chloride melt to perform a chlorination reaction, converting the ferrous chloride melt into ferric chloride gas. The ferric chloride gas is then condensed to obtain a solid ferric chloride product. The described method for separating iron from the nickel-iron alloy implements preferential chlorination of the iron in the alloy by means of controlling chlorination conditions, converting same into molten ferrous chloride. The ferrous chloride is then converted into gaseous ferric chloride, which is cooled to obtain ferric chloride. The process is simple, the procedure is short, and high-quality ferric chloride is obtained.

Classes IPC  ?

• C22B 1/08 - Grillage chlorurant
• C01G 49/10 - Halogénures
• C22B 23/00 - Obtention du nickel ou du cobalt

Abrégé

The present invention provides a method and device for separating nickel and iron from a nickel-iron alloy. The method comprises the following steps: roasting the nickel-iron alloy in a chlorine-containing atmosphere to obtain a roasting residue and an iron- and nickel-containing vapor phase, wherein the roasting temperature is 900-1200°C, and the roasting duration is 60-180 min; performing multi-stage condensation on the iron- and nickel-containing vapor phase, and collecting a solid phase obtained from first-stage condensation to obtain a nickel chloride product; and collecting a solid phase obtained from second-stage condensation to obtain an iron chloride product, wherein the second-stage condensation follows the first-stage condensation, and the condensation temperature of the second-stage condensation is 100-200°C. In the method for separating nickel and iron from a nickel-iron alloy, during roasting, highly selective volatilization of iron and nickel is achieved by controlling the roasting temperature and the roasting atmosphere, while impurities retain in the residue. Subsequently, by performing staged temperature-controlled condensation on the vapor phase obtained by roasting, high-purity nickel chloride and iron chloride products can be obtained separately.

Classes IPC  ?

• C22B 1/08 - Grillage chlorurant
• C22B 23/00 - Obtention du nickel ou du cobalt
• C01G 49/10 - Halogénures
• C01G 53/09 - ChoruresOxychlorures
• F27B 17/00 - Fours d'un genre non couvert par l'un des groupes

Abrégé

The present invention relates to the field of fluorine-containing organic matter treatment, and specifically relates to a method for treating a fluorine-containing organic matter, a method for purifying hydrogen chloride gas, a method for preparing a metal fluoride, and a method for preparing chlorine gas from hydrogen chloride gas. The method for treating a fluorine-containing organic matter comprises: in the presence of hydrogen chloride, bringing a fluorine-containing organic matter into contact with a metal compound to generate a metal fluoride, wherein an L acid is present in the metal compound under the action of hydrogen chloride. Therefore, the method can not only effectively remove a fluorine-containing organic matter, such that hydrogen chloride gas is purified, but can also be used for the preparation of chlorine gas; in addition, the fluorine-containing organic matter can be further converted into a metal fluoride having a high added value, such as aluminum fluoride.

Classes IPC  ?

• C01B 9/08 - Fluorures
• C01B 7/07 - Purification
• C01B 7/04 - Préparation du chlore à partir de l'acide chlorhydrique

Abrégé

Disclosed are an ionic liquid-based perfluorinated high-voltage-resistant lithium battery electrolyte and a preparation method therefor. The high-voltage-resistant electrolyte is composed of an imidazolyl ionic liquid, a lithium salt, and an electrolyte additive. The ionic liquid-based electrolyte has relatively reversible and stable lithium stripping/deposition performance, exhibits good compatibility with a lithium metal/graphite negative electrode, and can also form a highly fluorinated stable electrode-electrolyte interface (CEI/SEI layer), thus improving the compatibility of the ionic liquid electrolyte with a high-voltage lithium cobaltate positive electrode, and effectively inhibiting dendrite formation and oxidation dissolution of the electrolyte, thereby achieving extremely high cycle stability and Coulombic efficiency of a lithium battery under high voltage conditions.

Classes IPC  ?

• H01M 10/0569 - Matériaux liquides caracterisés par les solvants
• H01M 10/0568 - Matériaux liquides caracterisés par les solutés
• H01M 10/0567 - Matériaux liquides caracterisés par les additifs
• H01M 10/052 - Accumulateurs au lithium
• H01M 10/058 - Structure ou fabrication

Abrégé

A printed circuit board crushing, separating and recycling apparatus having cooling water circulation, comprising a rotary crusher (A), a magnetic separation belt (B), and a flotation and centrifugal separation device (C). The rotary crusher (A) uses a shearing rotary crushing hammer that mainly splits and crushes to impact and crush, and a sieve plate is disposed at the lower part of a rotor of the rotary crusher (A), particles in the crushed material smaller than the sieve plate size being able to be discharged by means of the sieve plate. In the material discharged by means of the sieve plate, magnetic material is conveyed by the magnetic separation belt (B), which has a built-in magnetic induction apparatus, to a magnetic material zone (9) for recovery, while non-magnetic metallic and non-metallic particles are conveyed to a non-magnetic material zone (8) to continue flotation based on density differences, to achieve material recovery and separation. The printed circuit board crushing, separating and recycling apparatus is equipped with cooling water circulation, which can control the internal temperature of a crushing chamber of the rotary crusher (A) during a crushing process, so as to prevent partial pyrolysis of resin components and the generation of brominated hydrocarbons, benzene and phenolic compounds. In addition, it can also prevent dust generation during the crushing process, thereby avoiding secondary pollution.

Classes IPC  ?

• B02C 18/14 - 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 à l'intérieur de récipients horizontaux
• 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

Abrégé

A new intelligent hole inspection device for medium-length hole blasting. The device comprises: a driving device, a measuring device and a connecting device, wherein the driving device comprises an electric motor, guide wheels and a carrier, every four guide wheels are formed into a group, and a total of two groups of guide wheels are respectively arranged at the front and rear ends of the carrier; the measuring device comprises a data measurement unit, a data receiver and a data processing unit which are connected in sequence; and the connecting device comprises support rods and telescopic units, eight support rods are provided in total, and are respectively used to connected the eight guide wheels to the carrier, and the telescopic units are arranged at the joints of the support rods and the carrier, and can retract and extend on the basis of the size of a blasthole, such that the guide wheels are tightly pressed against a blasthole wall. The carrier is driven by the guide wheels to continuously move forward in the blasthole, and the data measurement unit records angle data of the blasthole and spatial moving trajectory data of the carrier and the eight guide wheels in real time, and wirelessly transmits the angle data and the spatial moving trajectory data to the data receiver and the data processing unit for further processing. Further provided is a new intelligent hole inspection method for medium-length hole blasting, which is used for calculating parameters of a blasthole.

Classes IPC  ?

• G01B 21/22 - Dispositions pour la mesure ou leurs détails, où la technique de mesure n'est pas couverte par les autres groupes de la présente sous-classe, est non spécifiée ou est non significative pour mesurer des angles ou des conicitésDispositions pour la mesure ou leurs détails, où la technique de mesure n'est pas couverte par les autres groupes de la présente sous-classe, est non spécifiée ou est non significative pour tester l'alignement des axes
• G01B 21/02 - Dispositions pour la mesure ou leurs détails, où la technique de mesure n'est pas couverte par les autres groupes de la présente sous-classe, est non spécifiée ou est non significative pour mesurer la longueur, la largeur ou l'épaisseur
• G01B 21/14 - Dispositions pour la mesure ou leurs détails, où la technique de mesure n'est pas couverte par les autres groupes de la présente sous-classe, est non spécifiée ou est non significative pour mesurer des diamètres des diamètres intérieurs
• G01C 22/00 - Mesure de la distance parcourue sur le sol par des véhicules, des personnes, des animaux ou autres corps solides en mouvement, p. ex. en utilisant des odomètres ou en utilisant des podomètres
• H04W 4/38 - Services spécialement adaptés à des environnements, à des situations ou à des fins spécifiques pour la collecte d’informations de capteurs

Abrégé

Provided in the present application are an airflow adjustment device and method for a mine roadway. The device comprises: an airbag module, an inflation module, a fixing module, a main control module and a sensor module, wherein the airbag module is formed by means of joining a plurality of airbags; the inflation module is used for inflating and deflating the airbags; the fixing module comprises a first column, a second column, an upper guide rail, a lower guide rail and guide wheels; the left and right sides of the airbag module are respectively fixed to the first column and the second column to form an air door; the upper and lower sides of the airbag module are respectively fixed to the upper guide rail and the lower guide rail; the upper and lower ends of the first column are fixed to the left sides of the guide rails; and the guide wheels are mounted at both the upper and lower ends of the second column, such that the second column can be driven to move left and right along the guide rails, thereby driving the air door to open or close, and thus realizing ventilation or sealing of a roadway. The device in the present application can perform ventilation regulation and effective sealing on a mine roadway.

Classes IPC  ?

• E21F 1/10 - Portes d'aérage

Abrégé

A decoupling control method for a six-axis vibration table and a system for implementing the decoupling control method for a six-axis vibration table, capable of performing real-time adjustment on the vibration table according to specific conditions, thereby enhancing the robustness of the system, and achieving high reliability and good accuracy. The method comprises: acquiring data information of a target six-axis vibration table; representing a dynamic coupling model of the target six-axis vibration table in a global linearization manner to construct a koopman predictor; using a deep neural network to obtain a feature function and an operator matrix of the predictor; performing training to obtain a deep koopman estimator, and obtaining state information of the target six-axis vibration table; using the deep koopman estimator as a prediction model to design a multi-dimensional model prediction controller; using a fuzzy neural network to perform online tuning; and using the tuned multi-dimensional model prediction controller to control the target six-axis vibration table, so as to complete decoupling control over the target six-axis vibration table.

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

Disclosed in the present invention is a disturbance observation method for a six-axis vibration table. The method comprises: acquiring data information of a target six-axis vibration table; constructing an extended state observer for the target six-axis vibration table; constructing a fuzzy neural network identifier and a fuzzy neural disturbance observer for the target six-axis vibration table, setting start-stop rules, and performing training; and using a trained fuzzy neural disturbance observer to complete disturbance observation for the target six-axis vibration table. Further disclosed in the present invention are a system implementing the disturbance observation method for a six-axis vibration table, and a disturbance rejection control method comprising the disturbance observation method for a six-axis vibration table. In the present invention, by means of the design and implementation of an extended state observer, a fuzzy neural network identifier and a fuzzy neural disturbance observer, not only disturbance observation and disturbance control of a system are realized, thus improving the tracking performance of the system, but also higher reliability and higher accuracy are realized.

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

The present application is applicable to the technical field of autonomous driving, and provides a method and apparatus for generating an autonomous driving test scenario, a terminal device, and a medium. The method comprises: collecting traffic accident data, carrying out descriptive statistical analysis on the traffic accident data, and determining a typical accident scenario; on the basis of traffic accident data corresponding to the typical accident scenario, extracting pre-collision paths of accident participants in the typical accident scenario; constructing a collision path generation model for synthesizing pre-collision paths, inputting the pre-collision paths into the collision path generation model, and obtaining multiple synthesized pre-collision paths; and for each synthesized pre-collision path, constructing derived traffic accident data corresponding to the synthesized pre-collision path, and generating an autonomous driving test scenario on the basis of the derived traffic accident data. The present application can effectively reduce the generation of low-risk redundant accident scenarios, thereby improving the accuracy of safety evaluation.

Classes IPC  ?

• G06F 11/36 - Prévention d'erreurs par analyse, par débogage ou par test de logiciel
• G08G 1/01 - Détection du mouvement du trafic pour le comptage ou la commande
• 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
• B60W 60/00 - Systèmes d’aide à la conduite spécialement adaptés aux véhicules routiers autonomes

Abrégé

Provided are a rail vehicle line operating status real-time hybrid rolling-vibration test bed and a testing method. The test bed comprises a testing substructure (300), a fixing apparatus (200), a test bench (100), a data acquisition apparatus, an excitation module, a simulating system, a line numerical model solving module, and a control system; the testing substructure is a single bogie (310) or a vehicle set comprising at least one whole vehicle; the test bed is configured for applying a load to a wheel set (320) and driving the wheel set (320) to rotate; the data acquisition apparatus is configured for measuring reaction force generated by the testing substructure (300); the excitation module is configured for setting an external excitation load and a track irregularity; the simulating system is configured for establishing a numerical substructure and performing a simulation; the line numerical model solving module is configured for solving a spatial pose response of a wheel-rail contact point under the action of the external excitation load and the track irregularity when the testing substructure (300) passes through the line numerical model; and the control system receives a solution result output by the line numerical model solving module and controls the spatial pose loading of a six-degree-of-freedom loading apparatus (110).

Classes IPC  ?

• G01M 17/08 - Véhicules ferroviaires
• G01M 7/06 - Supports pour test multidirectionnel

Abrégé

The present application belongs to the technical field of lithium resource development and utilization, and relates to an electrode for electrochemical lithium extraction, which electrode is used for solving the following problems of an existing electrode for electrochemical lithium extraction: the strength of bonding between a substrate and an active material being low, so that the active material of the electrode is prone to shedding; the distribution of potentials on the surface of the electrode being uneven, so that polarization is severe; and an electron transport path being long, so that a current density is low. The electrode for electrochemical lithium extraction comprises a titanium mesh and lithium extraction slurry, wherein the titanium mesh is formed by arranging a plurality of unit mesh holes, the lithium extraction slurry is evenly coated on unit mesh-hole structures of the titanium mesh, and the coating density of the lithium extraction slurry is 60-150 mg/cm2. In the present application, the strength of bonding between an active material of an electrode and the surface of the electrode is high, so that the active material of the electrode is not prone to shedding; the potentials on the surface of the electrode are approximately equal, such that the electrode is not prone to polarization; and a current transport path is short.

Classes IPC  ?

• C22B 26/12 - Obtention du lithium
• C22B 3/02 - Appareillage à cet effet
• C22B 3/20 - Traitement ou purification de solutions, p. ex. de solutions obtenues par lixiviation
• C25D 7/04 - TubesAnneauxCorps creux
• C25D 3/50 - Dépôt électrochimiqueBains utilisés à partir de solutions de métaux du groupe du platine
• C25D 3/54 - Dépôt électrochimiqueBains utilisés à partir de solutions de métaux non prévus dans les groupes

Abrégé

The present invention relates to the technical field of skin information processing. Disclosed are a skin multi-modal data processing method and system. The method comprises: firstly, supplementing and augmenting missing attribute values of medical history data; and performing clinical image augmentation on a skin clinical image corresponding to the supplemented and augmented medical history data, so as to form paired and matched multi-modal data, wherein the manner of performing clinical image augmentation includes skin clinical image augmentation based on disease consistency and skin clinical image augmentation based on common skin composition transformation. In this way, by supplementing and augmenting the medical history data and augmenting the skin clinical image, the problems of incompleteness and less data volume of the multi-modal data can be solved.

Classes IPC  ?

• 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”

Abrégé

Disclosed in the present invention is a method for regulating and controlling a phase of aqueous synthetic formamidine lead iodine perovskite powder, for use in synthesizing pure α-phase and δ-phase perovskite powder. The method comprises the following steps: first dissolving a lead source in an aqueous acetic acid solution, then adding formamidine acetate, stirring to obtain a clear and transparent solution, adding hydroiodic acid to obtain a large amount of precipitate, filtering and collecting the precipitate, using a detergent to wash the precipitate, then collecting a solid product, placing the solid product in a drying oven, and drying to obtain the perovskite powder. The pure α-phase and δ-phase perovskite powder can be obtained by controlling the type of a washing solvent and a drying temperature.

Classes IPC  ?

• C09K 11/66 - Substances luminescentes, p. ex. électroluminescentes, chimiluminescentes contenant des substances inorganiques luminescentes contenant du germanium, de l'étain ou du plomb
• H10K 85/50 - Pérovskites organiquesPérovskites hybrides organiques-inorganiques [HOIP], p. ex. CH3NH3PbI3
• H10K 30/30 - Dispositifs organiques sensibles au rayonnement infrarouge, à la lumière, au rayonnement électromagnétique de plus courte longueur d'onde ou au rayonnement corpusculaire comprenant des hétérojonctions de masse, p. ex. des réseaux interpénétrés de domaines de matériaux donneurs et accepteurs
• H10K 30/50 - Dispositifs photovoltaïques [PV]

Abrégé

A ternary positive electrode material modified with a glassy metal-organic framework, and a preparation method therefor and the use thereof. The ternary positive electrode material modified with a glassy metal-organic framework is obtained by grinding and mixing a ternary positive electrode material and a metal-organic framework, and then subjecting same to a melt quenching treatment under a protective atmosphere. Forming a crack-free glassy metal-organic framework containing nano/sub-nano pores on a surface of the ternary positive electrode material can significantly improve the stability of the ternary positive material, alleviate the dissolution of transition metals, and ultimately improve the electrochemical performance of batteries and prolong the service life of the batteries.

Classes IPC  ?

• H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
• H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p. ex. liants, charges
• H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
• H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p. ex. LiMn2O4 ou LiMn2OxFy
• H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p. ex. LiNiO2, LiCoO2 ou LiCoOxFy
• B82Y 40/00 - Fabrication ou traitement des nanostructures

Abrégé

Provided in the present invention are a comprehensive evaluation method for an autonomous driving test scenario and a related device. The method comprises: acquiring accident data from historical traffic accidents, extracting pre-collision trajectories of accident participants, and determining test scenario elements on the basis of the pre-collision trajectories; performing weighting calculation on each test scenario element to obtain the weighting values of each test scenario element under a scenario complexity degree and a scenario risk degree; by means of the weighting values of each test scenario element under the scenario complexity degree and scenario risk degree, quantifying a risk index and a complexity degree index of each test scenario; and finally, using the complexity degree index and the risk index to perform comprehensive evaluation on each test scenario, thereby improving the effectiveness and accuracy of evaluation.

Classes IPC  ?

• G06F 11/36 - Prévention d'erreurs par analyse, par débogage ou par test de logiciel

Abrégé

The embodiments of the present disclosure belong to the technical field of data processing. Provided is a multimodal scenario risk determination method based on a generative AI large language model. The method specifically comprises: step 1, acquiring multimodal data to form a target data set, wherein the multimodal data comprises visual data and text data; step 2, using an ALBEF algorithm to extract key features corresponding to the target data set, and fusing the key features into a comprehensive scenario representation; and step 3, on the basis of a preset safety index and a large language model, evaluating a risk degree corresponding to the comprehensive scenario representation, comparing the risk degree with a risk threshold, and determining whether the scenario corresponding to the comprehensive scenario representation is a high-risk scenario. By means of the solution in the present disclosure, a high-risk scenario can be rapidly recognized and identified, so as to provide a basis for taking emergency measures, thereby enhancing the real-time response capability.

Classes IPC  ?

• G06F 18/241 - Techniques de classification relatives au modèle de classification, p. ex. approches paramétriques ou non paramétriques
• G06F 18/2415 - Techniques de classification relatives au modèle de classification, p. ex. approches paramétriques ou non paramétriques basées sur des modèles paramétriques ou probabilistes, p. ex. basées sur un rapport de vraisemblance ou un taux de faux positifs par rapport à un taux de faux négatifs
• G06F 18/22 - Critères d'appariement, p. ex. mesures de proximité
• G06F 18/213 - Extraction de caractéristiques, p. ex. en transformant l'espace des caractéristiquesSynthétisationsMappages, p. ex. procédés de sous-espace
• G06F 18/25 - Techniques de fusion
• G06N 3/0455 - Réseaux auto-encodeursRéseaux encodeurs-décodeurs

Abrégé

The present application is applicable to the technical field of traffic control. Provided are an adaptive traffic signal control method and apparatus, a device and a medium. The adaptive traffic signal control method comprises: on the basis of a background plan and an optimal timing plan which are pre-configured for a target intersection, establishing a plurality of control policies for controlling the traffic light duration; on the basis of the discharged traffic volume, the intersection traffic capacity and the number of queued vehicles at the target intersection at a current moment, determining a current traffic state of the target intersection; on the basis of the current traffic state of the target intersection and the relevance between the target intersection and an intersection adjacent to the target intersection, selecting a target control policy from the plurality of control policies; and on the basis of the target control policy, controlling the target intersection. The adaptive traffic signal control method of the present application can improve the traffic efficiency of intersections.

Classes IPC  ?

• G08G 1/083 - Commande du temps attribué entre les phases d'un cycle
• G08G 1/08 - Commande des signaux de trafic selon le nombre ou la vitesse détectés des véhicules

Abrégé

The present application is applicable to the technical field of autonomous driving. Provided are a velocity control method and apparatus for an autonomous vehicle, and a device and a medium. The method comprises: acquiring the current driving information data of a target vehicle, the current driving information data of surrounding vehicles, and trajectory data of a human-driven vehicle; constructing a simulated driving environment of the target vehicle; on the basis of the driving information data of the target vehicle and the driving information data of the surrounding vehicles, using an SAC algorithm to generate a synthesized trajectory, and running the synthesized trajectory in the simulated driving environment; on the basis of the running result and the trajectory data of the human-driven vehicle, calculating an assistance reward function value, a discriminator calculating a reward function value, and then optimizing the SAC algorithm; using the optimized SAC algorithm to generate a final synthesized trajectory; and on the basis of the final synthesized trajectory, controlling an acceleration and a velocity direction of the target vehicle. The method in the present application can improve the rationality of control over autonomous vehicles.

Classes IPC  ?

• G05D 13/62 - Commande de la vitesse linéaireCommande de la vitesse angulaireCommande de l'accélération ou de la décélération, p. ex. d'une machine motrice caractérisée par l'utilisation de moyens électriques, p. ex. l'emploi de dynamos-tachymétriques, l'emploi de transducteurs convertissant des valeurs électriques en un déplacement

Abrégé

Disclosed in the present invention are a standard railway bridge elastoplastic stopper structure and a probabilistic performance evaluation method therefor. The stopper structure comprises a base plate, wherein a first stopper unit and a second stopper unit are arranged on the lower end of the base plate; the first stopper unit and the second stopper unit are arranged in bilateral symmetry; the first stopper unit and the second stopper unit each comprise a trapezoidal component; and each trapezoidal component is of a trapezoidal shape in the transverse direction of a box-girder bottom plate. The method comprises the following steps: determining an appropriate seismic motion input; establishing a structural nonlinear analysis model; on the basis of the seismic motion input and the structural nonlinear analysis model, determining a probabilistic expression of unseating-prevention performance; and evaluating the actual performance of the elastoplastic stopper structure. The present invention has a stable plastic mechanism and good deformation and energy dissipation capabilities, and can significantly improve the unseating-prevention performance of a stopper. The present invention provides a probabilistic evaluation method for unseating-prevention performance, thus realizing reasonable quantitative evaluation of the unseating-prevention performance of an anti-seismic stopper of a railway bridge.

Classes IPC  ?

• E01D 19/00 - Détails des ponts
• E01D 19/04 - PaliersArticulations
• G06F 30/23 - Optimisation, vérification ou simulation de l’objet conçu utilisant les méthodes des éléments finis [MEF] ou les méthodes à différences finies [MDF]
• G06F 119/14 - Analyse des forces ou optimisation des forces, p. ex. forces statiques ou dynamiques

Abrégé

The present invention provides a wheel-rail lateral displacement measuring method and apparatus for a rail vehicle. The measuring method comprises: acquiring an original vehicle wheel-rail contact image set, and marking a plurality of pieces of key point information; inputting the image set with a plurality of key point information labels into a key point prediction network to obtain a predicted position and a predicted displacement deviation of each key point in contact with a vehicle wheel rail, and a predicted distance between two specified key points; measuring a real distance between the two specified key points by a displacement sensor, and obtaining a distance deviation between the two specified key points; fusing the distance deviation, a predicted key point coordinate position on the wheel rail and a corresponding predicted displacement deviation to perform training so as to obtain an optimized key point prediction network; and inputting a wheel-rail contact video into the optimized key point prediction network to obtain coordinate values of key points in wheel-rail contact images and a wheel-rail lateral relative displacement time-history curve. The measuring method provided in the present invention can improve the speed and accuracy of wheel-rail lateral displacement measurement, without setting a target.

Classes IPC  ?

• G06T 7/60 - Analyse des attributs géométriques
• G06N 3/0455 - Réseaux auto-encodeursRéseaux encodeurs-décodeurs
• G06N 3/0464 - Réseaux convolutifs [CNN, ConvNet]
• G06T 3/40 - Changement d'échelle d’images complètes ou de parties d’image, p. ex. agrandissement ou rétrécissement
• G06V 10/32 - Normalisation des dimensions de la forme
• G01B 11/02 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer la longueur, la largeur ou l'épaisseur

Abrégé

A Cu-Cr-Nb-RE alloy, wherein the Cu-Cr-Nb-RE alloy simultaneously contains Cu, Cr, Nb and RE; the difference between the tensile strength of a formed part in a Z-axis direction and that in a direction perpendicular to the Z-axis is less than 7.5%; and the Cu-Cr-Nb-RE alloy is prepared by means of additive manufacturing. The Cu-Cr-Nb-RE alloys with different texture intensities, different grain sizes, good mechanical properties and extremely low anisotropy can be prepared by means of the cooperation between laser power and scan rate parameters within the range of the designed composition of the alloy.

Classes IPC  ?

• C22C 9/00 - Alliages à base de cuivre
• B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
• B22F 1/00 - Poudres métalliquesTraitement des poudres métalliques, p. ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
• B22F 10/28 - Fusion sur lit de poudre, p. ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
• B33Y 10/00 - Procédés de fabrication additive
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
• B22F 10/36 - Commande ou régulation des opérations des paramètres du faisceau d’énergie
• C22F 1/08 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid du cuivre ou de ses alliages

Abrégé

Disclosed in the present invention are a railway vehicle-track-bridge system dynamic response prediction method and system, and a medium. The method comprises: inputting vehicle speed samples and track irregularity samples into a vehicle-track-bridge system coupled random distribution physical model to obtain corresponding bridge dynamic responses and effective loads of the vehicle-track-bridge system, and extracting a global stiffness matrix of the vehicle-track-bridge system; constructing a training sample set; constructing a fitness function considering the effective loads, and then on the basis of the training sample set, using a genetic algorithm to optimize parameters of a BP neural network prediction model and training same to obtain a bridge dynamic response prediction model; and using the bridge dynamic response prediction model to carry out bridge dynamic response prediction. By introducing effective loads in a vehicle-track-bridge system into a fitness function in a genetic algorithm, a neural network model and a vehicle-track-bridge physical model are organically combined, thereby improving the prediction precision.

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

Abrégé

The present invention provides a high-equiaxed-grain-ratio nickel-based high-temperature alloy for additive manufacturing. In view of the problem of cracking in a nickel-based high-temperature alloy for additive manufacturing, microalloying appropriate amounts of rare earths Hf and Y is proposed for the first time to regulate the microstructure of a printed alloy, thereby eliminating strong texture along a construction direction, inhibiting the growth of columnar grains, and directly obtaining a high-equiaxed-grain-ratio alloy, reducing the cracking sensitivity, eliminating cracks during additive manufacturing, and solving the problem of cracking during heat treatment. According to the present invention, a nickel-based high-temperature alloy having a high equiaxed grain ratio and no cracks can be prepared within a relatively wide printing parameter range. In addition, the high equiaxed grain ratio in the alloy prepared in the present invention has never been observed in nickel-based high-temperature alloys for additive manufacturing. The present invention has a rational composition design and a simple preparation process, the obtained product has excellent performance, and the additive manufacturing process has a large range of parameters, facilitating large-scale industrial production and practical application.

Classes IPC  ?

• C22C 19/05 - Alliages à base de nickel ou de cobalt, seuls ou ensemble à base de nickel avec du chrome
• C22C 30/00 - Alliages contenant moins de 50% en poids de chaque constituant
• B22F 1/05 - Poudres métalliques caractérisées par la dimension ou la surface spécifique des particules
• B22F 10/28 - Fusion sur lit de poudre, p. ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
• B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
• B33Y 10/00 - Procédés de fabrication additive
• B33Y 40/00 - Opérations ou équipements auxiliaires, p. ex. pour la manipulation de matériau
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive

Abrégé

Aimed at the cracking problem of nickel-based superalloys for additive manufacturing, the present invention provides a nickel-based superalloy with low cracking sensitivity for additive manufacturing. The microstructure is adjusted and controlled by means of rare-earth microalloying, thereby facilitating the formation of high-density stacking faults, a rare-earth-containing nano second phase, and refined crystal grains and a subcrystal structure in the alloy matrix, increasing the number of isometric crystals, reducing the columnar crystal proportion and the length-to-diameter ratio thereof, decreasing the cracking sensitivity, and greatly improving the strength and plasticity. The method solves the problem of cracking in an additive manufacturing, storage and heat treatment of a nickel-based superalloy, and can be used to prepare a high-performance and crack-free nickel-based superalloy. The present invention has a rational composition design and a simple preparation process, results in a product having excellent performance, and facilitates large-scale industrial production and practical application.

Classes IPC  ?

• C22C 19/03 - Alliages à base de nickel ou de cobalt, seuls ou ensemble à base de nickel
• C22C 1/02 - Fabrication des alliages non ferreux par fusion
• C22C 1/03 - Fabrication des alliages non ferreux par fusion utilisant des alliages-mères
• B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
• B22F 10/00 - Fabrication additive de pièces ou d’objets à partir de poudres métalliques
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
• B33Y 80/00 - Produits obtenus par fabrication additive

Abrégé

characterized bycharacterized by the fact that leveraging dislocation structures within piezoelectric catalysts improves piezoelectric catalytic decomposition of water for the purpose of higher hydrogen production.

Classes IPC  ?

• B01J 35/33 - Propriétés électriques ou magnétiques
• B01J 21/06 - Silicium, titane, zirconium ou hafniumLeurs oxydes ou hydroxydes
• B01J 23/02 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe des métaux alcalins ou alcalino-terreux ou du béryllium
• B01J 23/20 - Vanadium, niobium ou tantale
• B01J 19/10 - Procédés utilisant l'application directe de l'énergie ondulatoire ou électrique, ou un rayonnement particulaireAppareils à cet usage utilisant des vibrations de fréquences audibles ou des ultrasons
• B01J 35/61 - Surface spécifique
• C01B 3/04 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par décomposition de composés inorganiques, p. ex. de l'ammoniac
• C01B 13/02 - Préparation de l'oxygène

Abrégé

233 product is obtained by means of subsequent carbonization and decarburization reactions. The present invention further relates to a device capable of achieving the above-mentioned purposes.

Classes IPC  ?

• H01M 10/54 - Récupération des parties utiles des accumulateurs usagés
• H01M 6/52 - Récupération des parties utiles des éléments ou batteries usagés

Abrégé

The present invention provides a traffic flow prediction method and apparatus, a medium, and a device. The method comprises: collecting historical traffic flow data in a target area; constructing initial prediction models in a central server; performing distributed collaborative training on the initial prediction models at local clients to obtain trained initial prediction models, and inputting the trained initial prediction models into the central server to perform quality screening and aggregation; performing credibility calculation on each local client at which the corresponding initial prediction model satisfying preset quality requirements is trained, and performing weight parameter customization on an aggregated initial prediction model to obtain a traffic flow prediction model; and inputting the historical traffic flow data into the traffic flow prediction model for traffic flow prediction to obtain a traffic flow prediction result in the target area. The traffic flow prediction model can be trained without sharing data of all parties and invading privacy, and the traffic flow in the target area is predicted by means of the traffic flow prediction model having relatively high performance, thereby improving the prediction precision of the traffic flow.

Classes IPC  ?

• G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"

Abrégé

Embodiments of the present disclosure belong to the technical field of data processing, and provide a method for generating a multi-background vehicle high-risk test scenario for autonomous driving. The method specifically comprises: step 1, extracting spatial-temporal features of all vehicles in an accident occurrence process; step 2, combining a pre-collision time sequence feature of a collision vehicle and a time sequence interaction feature between a non-collision vehicle and an accident vehicle, fusing static features, and creating a scenario spatial-temporal coupling matrix; step 3, on the basis of a preset sampling interval, sampling the scenario spatial-temporal coupling matrix, to obtain multiple scenario sections; step 4, inputting all of the scenario sections into a GAN network, and performing generalization to generate a scenario spatial-temporal coupling section; and step 5, on the basis of the scenario spatial-temporal coupling section and on the basis of the pre-collision time sequence feature, the time sequence interaction feature, and the distribution of the static features in the scenario spatial-temporal coupling matrix, performing expansion to obtain a complete spatial-temporal coupling test scenario. By means of the solution of the present disclosure, the safety and reliability of a self-driving vehicle are improved.

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
• B60W 60/00 - Systèmes d’aide à la conduite spécialement adaptés aux véhicules routiers autonomes

Abrégé

An ultrafine grain cemented carbide additive manufacturing method. WC-Co is used as a raw material, a crystal grain growth inhibitor is added, and a rare earth oxide is added as a reinforcing phase; paraffin and a trace amount of low-valence rare earth oxide powder are added, ball milling is carried out for coating cemented carbide powder, and oxygen control is carried out; the cemented carbide powder obtained by ball milling and an organic adhesive are loaded in a vacuum banbury mixer-granulator to prepare a printing feed, then a green body is printed using fused deposition modeling (FDM), and finally, degreasing and two-step sintering are carried out on the green body to prepare ultrafine cemented carbide. By means of the combined effect of the components and process optimization design, the powder properties are regulated, the process range of vacuum banburying and granulation and additive manufacturing is widened, and the problems of pores, interlayer cracks, and oxygen absorption in a printed green body, and abnormal grain growth, oxidation decarburization, and the formation of brittle η-phase in a sintered sample are solved. The prepared ultrafine grain cemented carbide exhibits high relative density, is free of metallurgical defects, possesses excellent mechanical properties, and is suitable for large-scale and mass production.

Classes IPC  ?

• B22F 10/10 - Formation d’un corps vert
• B22F 1/103 - Poudres métalliques contenant des agents lubrifiants ou liantsPoudres métalliques contenant des matières organiques contenant un liant organique comprenant un mélange de, ou obtenu par réaction de, plusieurs composants autres que les solvants ou les agents lubrifiants
• C22C 29/02 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures à base de carbures ou de carbonitrures
• C22C 29/08 - Alliages à base de carbures, oxydes, borures, nitrures ou siliciures, p. ex. cermets, ou d'autres composés métalliques, p. ex. oxynitrures, sulfures à base de carbures ou de carbonitrures à base de carbures mais ne contenant pas d'autres composés métalliques à base de carbure de tungstène

Abrégé

A cemented carbide additive manufacturing method, comprising the specific steps of: (1) preparing uniformly dispersed cemented carbide powder by ball milling; (2) preparing a printing feed by internal mixing; (3) preparing a printing green body by means of fused deposition modeling of the feed; and (4) carrying out degreasing and vacuum pressure sintering on the green body to obtain a cemented carbide product. A cemented carbide solid part which is free of pores, cracks and decarburization, is free of harmful phases such as free carbon and brittle phase, and has simple phase composition, high relative density and excellent comprehensive mechanical properties is prepared by means of green body printing in cooperation with two-step degreasing of solvent degreasing and thermal degreasing and vacuum pressure sintering. Therefore, the present invention effectively solves the problems of cracking, pores, decarburization, brittle phase and deformation, low relative density, poor comprehensive mechanical properties, etc. which make troubles in cemented carbide additive manufacturing for a long time and are difficult to solve by existing additive manufacturing technology. The cemented carbide powder raw material used in an existing powder metallurgy process can be adopted. The prepared cemented carbide product has excellent hardness, strength and fracture toughness. The method is simple, low-cost, and suitable for large-scale production.

Classes IPC  ?

• B22F 10/16 - Formation d’un corps vert par incorporation de liant dans un lit de poudre
• B22F 1/103 - Poudres métalliques contenant des agents lubrifiants ou liantsPoudres métalliques contenant des matières organiques contenant un liant organique comprenant un mélange de, ou obtenu par réaction de, plusieurs composants autres que les solvants ou les agents lubrifiants
• B22F 3/14 - Compactage et frittage simultanément
• C22C 1/051 - Fabrication de métaux durs à base de borures, de carbures, de nitrures, d'oxydes ou de siliciuresPréparation du mélange de poudres utilisé comme matière première à cet effet
• B33Y 10/00 - Procédés de fabrication additive
• B33Y 40/20 - Posttraitement, p. ex. durcissement, revêtement ou polissage

Abrégé

Disclosed is a surgical navigation system based on visual analysis, which comprises an image acquisition module, a data preprocessing module, a data classification module, a registration module, a three-dimensional reconstruction module, and a tracking feedback module. The present invention belongs to the technical field of surgical navigation, relates in particular to a surgical navigation system based on visual analysis, and aims to solve the technical problems of poor quality of an image provided by a three-dimensional model constructed by a medical image in a single mode and a provided angle of view being singular and unable to fully reflect the position of a lesion. According to the present solution, adaptive non-local mean filtering denoising processing is carried out on images, and a multi-modal medical image is acquired for constructing a model having different angles of view and physical information. Meanwhile, according to the present solution, a coarse-to-fine medical registration method which combines a progressive image and a speeded-up robust feature algorithm is used, so that the precision of registration is improved.

Classes IPC  ?

• G06T 7/00 - Analyse d'image
• A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre

Abrégé

Disclosed in the present invention are a method, system and device for performing intestinal polyp contour segmentation on the basis of an adaptive threshold. The present method comprises: acquiring an intestinal polyp image to be segmented, and removing highlight points and additional information from said intestinal polyp image, so as to obtain a first intestinal polyp image; increasing the image contrast of the first intestinal polyp image, so as to obtain a second intestinal polyp image; performing segmentation on the second intestinal polyp image by means of using an adaptive threshold algorithm, so as to obtain a main contour image; removing noise spots from the main contour image, so as to obtain a denoised image; performing local detail processing on the denoised image, so as to obtain a processed denoised image; extracting an intestinal polyp contour from the processed denoised image, and performing curve fitting on the intestinal polyp contour, so as to obtain a complete intestinal polyp contour; and performing intestinal polyp contour segmentation on the basis of the complete intestinal polyp contour. The present invention can improve the accuracy of intestinal polyp contour segmentation.

Classes IPC  ?

• G06T 7/12 - Découpage basé sur les bords

Abrégé

A surgical navigation positioning system and method. The system comprises a data acquisition module, a data preprocessing module, a model reconstruction module, a coordinate registration module, an information restoration module, and a positioning tracking module. The method comprises acquiring an original patient image, a patient CT image, and real-time video data, carrying out data preprocessing and optimized registration by means of a guided image filtering denoising algorithm, implementing model reconstruction by means of a ray casting algorithm, and using an adversarial training method to implement information restoration of an occluded image, thus increasing the precision, accuracy, and safety of surgical navigation positioning.

Classes IPC  ?

• A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
• G06T 7/246 - Analyse du mouvement utilisant des procédés basés sur les caractéristiques, p. ex. le suivi des coins ou des segments
• G06T 5/00 - Amélioration ou restauration d'image

Abrégé

The present invention relates to the technical field of automatic localization in medical images, and specifically to a method for automatic localization in a medical image based on deep learning. The method comprises the following steps: establishing a digital analysis model, collecting a large amount of medical image data, and performing integrity evaluation and screening on the collected medical image data; and on the basis of the result of screening of medical image information. According to the present invention, by means of the powerful feature extraction and generalization capabilities of a deep learning network, a specific area in a medical image can be automatically and accurately localized, avoiding the interference of errors and improving the accuracy of localization, by automatically localizing the specific area, the efficiency of medical diagnosis is improved, the deep learning network has strong adaptability and can process different types of medical images, unknown image information can also be fed back, and feedback data is collected and inputted into the model for system update, enabling the present invention to have a learning ability, thereby achieving both universality and flexibility.

Classes IPC  ?

• G06T 7/00 - Analyse d'image

Abrégé

Disclosed in the present invention are a UWB-technology-based surgical positioning method, system and device, and a medium. The method comprises: establishing a human body electromagnetic simulation model, and using UWB technology to provide a signal which is propagated within a human body in the human body electromagnetic simulation model, so as to establish a channel model; constructing a path loss model for calculating a path loss in the channel model; on the basis of a signal reception principle, constructing a mathematical model which includes a received power and a path loss; after a first path loss is calculated by means of the path loss model, calculating a received power on the basis of the mathematical model; at the minimum received power, calculating a second path loss on the basis of the mathematical model; calculating a communication distance on the basis of the second path loss, a free-space path loss model, and environmental parameters which include a shadow loss; and on the basis of the communication distance, using a trilateration positioning method to perform surgical positioning on a target to be measured. The present invention can improve the accuracy of surgical positioning, thereby avoiding causing additional harm to patients.

Classes IPC  ?

• A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
• A61B 34/00 - Chirurgie assistée par ordinateurManipulateurs ou robots spécialement adaptés à l’utilisation en chirurgie
• H04B 17/391 - Modélisation du canal de propagation
• G01S 1/00 - Radiophares ou systèmes de balisage émettant des signaux ayant une ou des caractéristiques pouvant être détectées par des récepteurs non directionnels et définissant des directions, situations ou lignes de position déterminées par rapport aux émetteurs de radiophareRécepteurs travaillant avec ces systèmes
• H04B 17/309 - Mesure ou estimation des paramètres de qualité d’un canal
• H04W 4/029 - Services de gestion ou de suivi basés sur la localisation
• G01S 5/00 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance

Abrégé

A model predictive control method for a seismic simulation shaking table, comprising: S1: acquiring offline data of input signals and output signals of a seismic simulation shaking table; S2, on the basis of the acquired offline data, using sparse regression to identify a kinetic equation of the seismic simulation shaking table; and S3, on the basis of the kinetic equation, predicting output signals of the seismic simulation shaking table under different input signals, and using an optimization model to correct the input signals; moreover, on the basis of real-time data of the input signals and the output signals collected by the seismic simulation shaking table in the control process, performing parameter updating on the kinetic equation; and repeating the processes of prediction, optimization of input signals, and parameter updating until a preset target signal has been reproduced. The method has good precision and stability, and can effectively improve the control performance of the seismic simulation shaking table. The present invention further relates to a model predictive control system for a seismic simulation shaking table, a medium, and a terminal.

Classes IPC  ?

• G01M 7/02 - Test de vibration
• G06F 17/11 - Opérations mathématiques complexes pour la résolution d'équations
• G06F 17/18 - Opérations mathématiques complexes pour l'évaluation de données statistiques

Abrégé

24244)(OH)], thereby achieving the high-selectivity deep purification of beryllium ions in beryllium-containing wastewater, so as to eliminate beryllium pollution in a water environment. The beryllium (II) mineralization reagent is particularly suitable for the treatment of beryllium-containing wastewater generated during the smelting process of non-ferrous metals, such as beryllium, lithium, lead and zinc, and can reduce the beryllium concentration in the beryllium-containing wastewater to 0.002 mg/L or below, which is lower than the discharge standard of 5 μg/L specified in the National Comprehensive Wastewater Discharge Standard (GB8978-1996). In addition, the beryllium (II) mineralization reagent has the advantages of low costs, no toxicity, a simple construction process, a high purification efficiency, good long-acting stability of precipitated slag, no secondary pollution, etc.

Classes IPC  ?

• C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
• C02F 1/58 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par élimination de composés spécifiés dissous
• C02F 9/00 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout
• C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
• C02F 1/56 - Composés macromoléculaires
• C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
• C02F 101/10 - Composés inorganiques
• C02F 103/16 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de procédés métallurgiques, c.-à-d. de la production, de la purification ou du traitement de métaux, p. ex. déchets de procédés électrolytiques

Abrégé

Disclosed are a standing wave acoustofluidic device for sorting exosomes in body fluids and a method for using same. The standing wave acoustofluidic device for sorting exosomes in body fluids comprises an upper microfluidic chip and a lower acoustic wave excitation apparatus. The microfluidic chip comprises a channel chip and a cover plate, and the acoustic wave excitation apparatus comprises a piezoelectric transducer and an acoustic wave coupling liquid layer. The piezoelectric transducer is reversibly connected to the cover plate by means of the acoustic wave coupling liquid layer. The piezoelectric transducer is a piezoelectric ceramic. The channel chip is provided with a body fluid sorting channel, and the cover plate is provided with a micro-channel groove array structure corresponding to the body fluid sorting channel. The micro-channel groove array structure adjusts acoustic waves excited by the piezoelectric transducer, such that the acoustic waves are modulated in a space composed of the channel chip and the cover plate to form a required standing wave acoustic field. The present invention has advantages such as not affecting cell activity, being unaffected by temperature and the like, offering a stable sorting process, a simple manufacturing process, and low regulation difficulty, and eliminating the need to match the width, depth, and the like of microfluidic channels with the half-wavelength of acoustic waves.

Classes IPC  ?

• C12M 1/42 - Appareils pour le traitement de micro-organismes ou d'enzymes au moyen d'énergie électrique ou ondulatoire, p. ex. magnétisme, ondes sonores
• C12M 1/00 - Appareillage pour l'enzymologie ou la microbiologie
• B01L 3/00 - Récipients ou ustensiles pour laboratoires, p. ex. verrerie de laboratoireCompte-gouttes

Abrégé

The present invention provides a rheological die casting preparation method for an aluminum electrolytic metal ceramic anode, comprising: mixing metal ceramic powder and an organic binder to obtain a material agglomerate, molding the material agglomerate to obtain an anode shell material, fixing a T-shaped electric connection guide rod containing a soldering lug to the center of a mold, preheating the mold, and preheating the anode shell material, then injecting the anode shell material into a cavity of the mold via a flow channel, cooling and demolding the mold to obtain a metal ceramic anode blank containing the T-shaped electric connection guide rod, degreasing and sintering the metal ceramic anode blank containing the electric connection guide rod to obtain the aluminum electrolytic metal ceramic anode. According to the present invention, integrated near net shape forming of the special-shaped metal ceramic anode shell and the electric connection guide rod is realized by means of the rheological die casting preparation method, and the bottom of the T-shaped guide rod is tightly connected to the inner wall of the metal ceramic, solving the problems that aluminum electrolytic metal ceramic of a complex structure is difficult to form, and the electric connection guide rod is prone to falling off.

Classes IPC  ?

• C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres
• C22C 38/08 - Alliages ferreux, p. ex. aciers alliés contenant du nickel
• B22F 3/22 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittageAppareils spécialement adaptés à cet effet pour la fabrication de pièces par coulée en moule poreux ou absorbant, c.-à-d. par coulée d'une suspension de poudre métallique dans un moule poreux, d'une façon analogue au coulage de la barbotine
• C25C 3/12 - Anodes

Abrégé

A reagent for detecting aging neutrophils in blood and the use thereof. The reagent can be used for assisting in diagnosis of mental disorders, and for predicting and/or judging the therapeutic effects of a drug for mental disorders. By using the number of aging neutrophils in blood as a blood diagnosis marker for mental disorders, the reagent for detecting aging neutrophils in blood can rapidly diagnose mental disorders, and also provides therapeutic targets and important bases for clinical applications such as gene therapy and drug therapy.

Classes IPC  ?

• C12Q 1/02 - Procédés de mesure ou de test faisant intervenir des enzymes, des acides nucléiques ou des micro-organismesCompositions à cet effetProcédés pour préparer ces compositions faisant intervenir des micro-organismes viables
• A61K 45/00 - Préparations médicinales contenant des ingrédients actifs non prévus dans les groupes
• A61P 25/18 - Antipsychotiques, c.-à-d. neuroleptiquesMédicaments pour le traitement de la manie ou de la schizophrénie

Abrégé

An integrated preparation method for an aluminum electrolysis metal anode shell (1) and electrical connection. The method comprises: mixing a metal shell powder and a thermoplastic adhesive to obtain a semi-solid hot material, crushing the semi-solid hot material to obtain metal shell feeding particles, preheating a mold to 60-100°C, then filling the preheated feeding particles into the mold, performing pressurization, raising the temperature to 5-50°C above the softening point temperature of the thermoplastic adhesive, performing rheological pressing to obtain a metal shell blank, filling an alloy inner core powder into the core of the metal shell blank to obtain an inert anode blank having an alloy inner core (2), and sintering the inert anode blank having the alloy inner core (2) to obtain an inert anode for aluminum electrolysis.

Classes IPC  ?

• B22F 7/06 - Fabrication de couches composites, de pièces ou d'objets à base de poudres métalliques, par frittage avec ou sans compactage de pièces ou objets composés de parties différentes, p. ex. pour former des outils à embouts rapportés
• B22F 5/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques caractérisée par la forme particulière du produit à réaliser
• B22F 1/103 - Poudres métalliques contenant des agents lubrifiants ou liantsPoudres métalliques contenant des matières organiques contenant un liant organique comprenant un mélange de, ou obtenu par réaction de, plusieurs composants autres que les solvants ou les agents lubrifiants
• C25C 3/12 - Anodes

Abrégé

A connecting device and a surgical navigation system. The connecting device is used for connecting two adjacent cascade pipes (6) of the surgical navigation system. The connecting device comprises connecting pipes (1), butt joint pipes (2), sleeves (3), and positioning beads (4); each connecting pipe (1) and each butt joint pipe (2) are respectively arranged at two ends of the corresponding cascade pipe (6); the butt joint pipe (2) on one cascade pipe (6) is sleeved on the outer wall of the connecting pipe (1) on the other cascade pipe (6); a connecting protrusion (11) is provided on the connecting pipe (1); a connecting groove (21) communicated with the interior of the butt joint pipe (2) is formed in the inner wall of the butt joint pipe (2). On the one hand, the dual fixed connection facilitates adjusting the length of the cascade pipes (6), so that, on the basis of the actual situation, a user can adjust the length of the cascade pipes (6) in the surgical navigation system, and on the other hand, the gap at the joint of the two adjacent cascade pipes (6) during connection can be reduced, so that the connection stability is improved, the connection accuracy is improved, and errors are reduced.

Classes IPC  ?

• A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
• A61B 34/30 - Robots chirurgicaux
• A61B 34/00 - Chirurgie assistée par ordinateurManipulateurs ou robots spécialement adaptés à l’utilisation en chirurgie
• F16L 37/00 - Accouplements du type à action rapide

Abrégé

A coordinated recovery method for a waste lithium ion battery material and high-grade nickel matte, comprising the following steps: (1) mixing a waste lithium ion battery material with high-grade nickel matte, so as to obtain a mixture; (2) roasting the mixture, so as to obtain a co-roasted solid product; (3) leaching the solid product by means of deionized water, so as to obtain a lithium-containing water leachate and water leaching residues; (4) acid-dissolving the water leaching residues, so as to obtain an acidic leachate, and then precipitating and removing impurities from the leachate and performing extraction separation, so as to obtain metal sulfate; and (5) carrying out purification treatment on the lithium-containing water leachate, so as to obtain lithium carbonate. The present invention preferentially extracts lithium from retired lithium ion batteries, prepares nickel sulfate by means of atmospheric acid leaching of high-grade nickel matte, converts valuable metal in the lithium batteries into water-insoluble forms, and achieves a lithium leaching rate of over 92% and efficient separation of the valuable metal.

Classes IPC  ?

• C22B 26/12 - Obtention du lithium
• 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 1/02 - Procédés de grillage
• C01D 15/08 - CarbonatesBicarbonates

Abrégé

Disclosed in the present invention are a shield tunneling digital twin stratum construction method and system fusing multi-source data, and the method comprises: first using investigation data of drilling, geotechnical tests, in-situ tests, etc. and considering the characteristics of "sparsity", "multi-dimensional correlation" and "spatial variability" of stratum distribution and geotechnical parameters to construct a multi-layer perceptron-based stratum three-dimensional distribution model, and establish a geotechnical parameter multivariate correlation three-dimensional conditional random field based on sparse Bayesian learning technology; using the stratum distribution and the multivariate geotechnical parameter random field to establish a shield tunnel tunneling random finite element digital twin model; and, on the basis of coupling double-unscented Kalman filtering, fusing shield tunneling mechanical parameters and stratum deformation monitoring data, and performing construction feedback-based dynamic inversion on stratum distribution uncertainty and geotechnical parameter space correlation to achieve fine characterization of stratum distribution and geotechnical parameters in front of a shield tunneling surface, so as to obtain a shield tunneling dynamic digital twin stratum model.

Classes IPC  ?

• G06F 30/23 - Optimisation, vérification ou simulation de l’objet conçu utilisant les méthodes des éléments finis [MEF] ou les méthodes à différences finies [MDF]

Abrégé

An aluminum electrolytic cell. A middle channel zone for collecting gas/heat is provided in an upper portion of a central gap of the aluminum electrolytic cell, and thus a high-temperature melt in the aluminum electrolytic cell and an area above the high-temperature melt are divided into three temperature zones with gradient temperature distribution, such as an inner heat-preserving zone, the middle channel zone and an outer sealed heat-preserving zone, such that the heat emitted from the upper portion of the electrolytic cell is carried by flue gas as much as possible, and is centralizedly and controllably discharged through the middle channel zone by means of flue gas flow regulation and control. Thus, the problems of it not being possible for a conventional single heat-preserving layer to seal the heat emitted from an upper portion and to seal flue gas to the maximum degree, etc. are solved. Moreover, in the present invention, anode carbon blocks and anode steel claws are all sealed in the outer sealed heat-preserving zone, which prevents the anode carbon blocks, the anode steel claws, anode guide rods, etc. in the outer sealed heat-preserving zone from being directly exposed to high-temperature flue gas and thus corroding, and which creates conditions for the use of an ultra-low voltage energy-saving electrolysis process or the implementation of a new energy consumption oriented flexible operation process, and for generating power by means of waste heat of the high-temperature flue gas.

Classes IPC  ?

• C25C 3/08 - Construction des cellules, p. ex. fonds, parois, cathodes
• C25C 3/22 - Collecte des gaz émis
• F27D 17/00 - Dispositions pour l'utilisation de la chaleur perdueDispositions pour l'utilisation ou pour l'élimination des gaz résiduaires

Abrégé

A device for testing adhesion between a powder material and a wall surface, comprising a support system, a pressurization system, a stretching system, and a control system. The support system plays a role in fixing and supporting and is composed of a base (3) and a rack (4); a support guide rail (2) and a pressure applying motor (18) are arranged on the base (3); the pressure applying motor (18) is connected to a pressure applying ball screw (1) to control lifting/lowering of a lifting/lowering rod (5); and a support platform (6) is connected to the lifting/lowering rod (5) and moves up and down along with the lifting/lowering rod (5). A rotating motor (16) and a bevel gearbox (7) are arranged on the support platform (6), wherein an output shaft of the bevel gearbox (7) is connected to a pressure sensor (8) for measuring and controlling pressure applied to the powder material. The pressure sensor (8) is connected to a pressure applying end cover (9) for applying pressure to a test material (11) in a cylindrical loading barrel (10) and rotating forwardly and reversely under the driving of a rotating servo motor (16) to better apply pressure; and in such a process, the size of the test material is compressed, and at this time, an industrial personal computer (17) controls the pressure applying motor (18) to compensate for the position of the pressure applying end cover (9), thereby ensuring that the pressure sensor (8) is maintained at set pressure. The cylindrical loading barrel (10) is fixed on the rack (4); an upper end of the cylindrical loading barrel (10) is in contact with a stretching end cover (12), such that the test material (11) will be adhered to the stretching end cover (12) after being pressed; during testing, the stretching end cover (12) can slowly move upwards at a constant speed under the driving of a ball screw (14), the tension of the stretching end cover is tested by a tension and compression sensor (13) and collected to the industrial personal computer (17), and a stretching speed is determined by a rotating speed of a stretching servo motor (15) and is controlled by the industrial personal computer (17).

Classes IPC  ?

• G01N 19/04 - Mesure de la force d'adhérence entre matériaux, p. ex. du ruban adhésif, d'un revêtement

Abrégé

A simple reflex agent for crawling literature data and a literature data crawling method. The simple reflex agent comprises: a performance module, an environment module, a sensing module, and an actuator module; the performance module is used for constructing a performance objective function; the environment module is used for constructing an environment set of the simple reflex agent; the sensing module is used for monitoring whether the system time and the number of journals are changed; and the actuator module is used for setting an objective on the basis of the performance objective function and automatically crawling literature data. Comprehensive and accurate literature data crawling can be implemented.

Classes IPC  ?

• G06F 16/951 - IndexationTechniques d’exploration du Web

Abrégé

Disclosed in the present invention is a method for calculating the Chinese-English semantic similarity of paragraph-level texts, comprising: respectively performing paragraph representation vector extraction on a Chinese paragraph and an English paragraph; modeling paragraph texts in terms of three levels of topic words, sentences, and paragraphs, and performing information interaction within and among the levels on the basis of a graph attention network; then fusing information of the three levels of topic words, sentences, and paragraphs to obtain paragraph representation vectors; and calculating the distance between the paragraph representation vectors to obtain the semantic similarity of the Chinese paragraph and the English paragraph. According to the method, information of three levels of topic words, sentences, and paragraphs are fused to obtain high-quality paragraph representation vectors, thereby achieving high-accuracy calculation of the semantic similarity of Chinese-English cross-language paragraphs.

Classes IPC  ?

• G06F 40/30 - Analyse sémantique
• G06F 40/211 - Parsage syntaxique, p. ex. basé sur une grammaire hors contexte ou sur des grammaires d’unification
• G06F 18/22 - Critères d'appariement, p. ex. mesures de proximité

Abrégé

2323233, and according to different addition amounts of Cr powder, the conductivity is 3-20% IACS higher than that before addition of the Cr powder. The copper alloy is widely used in the fields of new energy vehicles, ultra-high-voltage power transmission and transformation, aerospace and high-speed rail transit.

Classes IPC  ?

• C22C 1/04 - Fabrication des alliages non ferreux par métallurgie des poudres
• C22C 9/00 - Alliages à base de cuivre
• B22F 1/145 - Traitement chimique, p. ex. passivation ou décarburation
• B22F 1/142 - Traitement thermique ou thermomécanique
• B22F 3/04 - Compactage seul par utilisation de pression de fluide
• B22F 3/14 - Compactage et frittage simultanément
• B22F 3/20 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittageAppareils spécialement adaptés à cet effet par extrusion
• B22F 3/17 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittageAppareils spécialement adaptés à cet effet par forgeage
• B22F 3/24 - Traitement ultérieur des pièces ou objets
• C22F 1/08 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid du cuivre ou de ses alliages
• H01B 1/02 - Conducteurs ou corps conducteurs caractérisés par les matériaux conducteurs utilisésEmploi de matériaux spécifiés comme conducteurs composés principalement de métaux ou d'alliages

Abrégé

Disclosed in the present invention are an adaptive sparse recognition and control method and system for a multi-working-condition industrial system, and a device. The method comprises: collecting data of a plurality of known working conditions during an industrial process, recognizing a prediction model for each working condition on the basis of the collected data, constructing a prediction model set, and estimating a prediction error threshold value of each prediction model; collecting the current state quantity, predicting a state quantity at the current moment by using each prediction model and according to a state quantity and a control quantity at the previous moment, and calculating a prediction error; selecting a prediction model having the minimum prediction error, and comparing the prediction error of the prediction model with the threshold value: if the prediction error continuously exceeds the threshold value, determining that a new working condition occurs, using an adaptive update method to update the prediction model having the minimum prediction error, using the prediction model as the current working condition prediction model, and adding the prediction model into the prediction model set; and performing model predictive control on the industrial process under the current working condition. The present invention can provide an accurate prediction model, so as to rapidly and accurately control an industrial process.

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
• G06N 5/02 - Représentation de la connaissanceReprésentation symbolique

Abrégé

A vehicle-following operation risk state determination method and system, and a device, relating to the technical field of data processing. The method specifically comprises: step 1, acquiring trajectory data of a plurality of human-driven vehicles in actual road traffic; step 2, dividing all the human-driven vehicles into K following vehicle groups, each following vehicle group comprising a front vehicle and a rear vehicle; according to the trajectory data and scene discriminant function of the rear vehicle in each following vehicle group, determining that the traffic scene of the following vehicle group is normal following or abnormal following; and on the basis of the trajectory data and style discriminant function of the rear vehicle in each normal following vehicle group, determining that the driving style of a corresponding driver is an aggressive non-sensitive type, a conservative non-sensitive type, an aggressive sensitive type, or a conservative sensitive type; and step 3, performing accident risk determination on each following vehicle group according to the traffic scene of the following vehicle group and the driving style of the driver. The determination method improves the determination accuracy and adaptability.

Classes IPC  ?

• G08G 1/052 - Détection du mouvement du trafic pour le comptage ou la commande avec des dispositions pour déterminer la vitesse ou l'excès de vitesse
• G08G 1/01 - Détection du mouvement du trafic pour le comptage ou la commande
• G08G 1/0967 - Systèmes impliquant la transmission d'informations pour les grands axes de circulation, p. ex. conditions météorologiques, limites de vitesse
• G08G 1/0968 - Systèmes impliquant la transmission d'indications de navigation au véhicule

Abrégé

Disclosed is a radio frequency positioning chip-based surgical operation navigation system, relating to the technical field of microscopic radio positioning navigation. By means of using beacons (4, 5, 8) capable of transmitting signals for labeling a lesion tissue (3) and a blood vessel (6), a scalpel (7) is positioned in real time. A detector (1) is used for receiving related signals. The distance between each of the beacons (4, 5, 8) and the detector (1) is determined according to an RSSI ranging method. A real three-dimensional coordinate system is constructed to obtain coordinates of each of the beacons (4, 5, 8). Position correction is performed on the beacon positions of the beacons (4, 5, 8) in combination with a Kalman filtering algorithm metal detection technology. Then, a virtual three-dimensional coordinate system is constructed by means of three-dimensional fusion of corresponding CT images. A coordinate system for real-time navigation is obtained by means of mapping. Ultimately, the effect of assisting an operation in improving the accuracy, shortening the operation time and reducing trauma is achieved.

Classes IPC  ?

• A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
• A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
• G06K 19/077 - Détails de structure, p. ex. montage de circuits dans le support
• G06K 7/00 - Méthodes ou dispositions pour la lecture de supports d'enregistrement
• G06T 17/00 - Modélisation tridimensionnelle [3D] pour infographie
• G06T 19/00 - Transformation de modèles ou d'images tridimensionnels [3D] pour infographie

Abrégé

The present invention provides a trajectory tracking device capable of positioning a tip of an interventional guide wire. A chip detection assembly is configured for detecting the specific position of a positioning chip in a space of an operating table. A virtual three-dimensional coordinate system established according to an actual space coordinate system of the operating table is provided in a position calculation system. The current coordinates of the positioning chip are calculated according to data returned by the chip detection assembly, such that the coordinate position of the positioning chip is confirmed in the virtual three-dimensional coordinate system. A display is used for displaying the coordinates and high-lightness points. The positioning chip is arranged at the tip of the guide wire and the like. According to the present invention, a digital three-dimensional model of body surface skin and a blood vessel can be accurately constructed, and corresponds to the virtual three-dimensional coordinate system in the system, allowing for accurate positioning of the guide wire in the blood vessel. Meanwhile, multiple visual displays effectively improve an operator's awareness of the position of the tip of the guide wire, thereby improving the operation reliability, safety and operation speed, being capable of shortening the duration of X-ray radiation during insertion of the guide wire, and reducing the cumulative amount of radiation exposure.

Classes IPC  ?

• A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
• A61B 90/13 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures pour la chirurgie stéréotaxique, p. ex. système stéréotaxique à cadre avec des guides pour aiguilles ou instruments, p. ex. des glissières courbes ou des articulations à rotule guidés par la lumière, p. ex. pointeurs lasers
• A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
• A61B 34/00 - Chirurgie assistée par ordinateurManipulateurs ou robots spécialement adaptés à l’utilisation en chirurgie
• A61M 25/09 - Fils de guidage
• A61M 25/095 - Dispositions pour permettre la détection de la position interne du cathéter, p. ex. à l'aide d'une radiographie
• A61G 13/06 - Tables d'opération réglablesLeurs commandes la surface totale de la table pouvant être élevée ou abaissée
• A61G 13/10 - Parties constitutives, détails ou accessoires
• A61G 13/12 - Appuis qui leur sont spécialement adaptésDisposition des surfaces pour supporter des patients

Abrégé

Provided is an endoscope navigation system, which comprises: an endoscope device, a target positioning chip being arranged in the head end of the endoscope device; an operating bed used for bearing a target subject, wherein body surface labels are arranged at a plurality of anatomical positions of the target object, an auxiliary positioning chip is arranged in the body surface label, and a detection apparatus is arranged on the operating bed; a display; and a processor, wherein the processor is connected to the endoscope device, the detection apparatus, and the display, and the processor is used for: constructing a coordinate system by taking any point in the operating room as an original point, determining the positions of the auxiliary positioning chips in the coordinate system, converting a three-dimensional reconstruction model of the target object under the coordinate system; determining the position of the target positioning chip in the coordinate system and displaying the coordinate system and the positions of the three-dimensional reconstruction model and the target positioning chip in the coordinate system by means of the display, and determining and displaying, by means of the display, the advancing direction of the endoscope device at a furcation site. The endoscope navigation system can navigate the advancing direction of the endoscope at the furcation site.

Classes IPC  ?

• A61B 34/10 - Planification, simulation ou modélisation assistées par ordinateur d’opérations chirurgicales

Abrégé

Provided in the embodiment of the present invention is a B-ultrasonic positioning system capable of performing position information interaction confirmation with a detected target, which belongs to the technical field of surgery and specifically comprises: a lesion positioning chip guided and arranged at the position of a target lesion according to a CT image; a standard surgical bed; a chip detection apparatus arranged on the standard surgical bed; a laser movably arranged on the standard surgical bed, a transmitting end of the laser being perpendicular to the standard surgical bed; a B-ultrasonic probe with two probe positioning chips; a display; and a position calculation module configured to calculate coordinate values of the lesion positioning chip in a three-dimensional coordinate system according to position data and highlight same by means of the display, and control the laser to move to the position right above the lesion positioning chip. The position calculation module controls the B-ultrasonic probe to detect a target lesion and calculates the direct distance between the probe positioning chip close to the B-ultrasonic probe and the lesion positioning chip. By means of the scheme of the present invention, the operation complexity of B ultrasound is reduced, and the positioning accuracy, the real-time performance, and the adaptability are improved.

Classes IPC  ?

• A61B 8/08 - Applications cliniques
• A61B 8/00 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores
• A61B 90/13 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures pour la chirurgie stéréotaxique, p. ex. système stéréotaxique à cadre avec des guides pour aiguilles ou instruments, p. ex. des glissières courbes ou des articulations à rotule guidés par la lumière, p. ex. pointeurs lasers
• A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p. ex. pour le traitement de la luxation ou pour la protection de bords de blessures
• A61G 13/06 - Tables d'opération réglablesLeurs commandes la surface totale de la table pouvant être élevée ou abaissée
• A61G 13/10 - Parties constitutives, détails ou accessoires
• A61G 13/12 - Appuis qui leur sont spécialement adaptésDisposition des surfaces pour supporter des patients

Abrégé

Provided is an intelligent human body self-powered regional blood flow control device. An air bag (11), a plurality of detection sensors, a control circuit, and an arteriopalmus power generation assembly (7) are reasonably deployed, controlled and integrated into a whole, such that the convenience of use of the device is enhanced. The "control circuit" is a key component for integrating the air bag (11) and the detection sensors, and is also a basis for constructing a feedback loop. By means of processing feedback data from the plurality of detection sensors, a pressure component can be intelligently regulated and controlled. The tripartite linkage thus achieves intelligent control over blood flow automation. A lasting and stable energy supply can be provided for the device in a pulse self-energy supply manner, which will greatly improve the convenience and safety of clinical applications. The function of integrating power supply, detection, regulation and control, and alarm reminding achieved by the device is unachievable by any manually controlled blood flow control device at present. The expandability and adaptability of the device in different blood flow control demand scenarios are also incomparable to those of existing devices.

Classes IPC  ?

• A61B 17/12 - Instruments, dispositifs ou procédés chirurgicaux pour ligaturer ou comprimer par un autre moyen les parties tubulaires du corps, p. ex. les vaisseaux sanguins ou le cordon ombilical

Abrégé

The present invention provides a method for preparing an early-strength liquid accelerator free of alkali, chlorine, and fluorine. In percentage by mass and on the basis of the sum of the usage amounts of aluminum sulfate, diethanolamine, a pH regulator, a complexing agent, Tween 20, and water, aluminum sulfate accounts for 56%-58%, diethanolamine accounts for 5%-6%, the pH regulator accounts for 0.7%-0.8%, the complexing agent accounts for 1.3%-1.4%, Tween 20 accounts for 0.6%-0.8%, and the remainder is water. The preparation method comprises: after uniformly mixing water, a pH regulator, and a complexing agent, adding the mixture into a reaction kettle, and heating the reaction kettle; adding aluminum sulfate into the reaction kettle, and stirring the mixture until the aluminum sulfate is completely dissolved; adding diethanolamine into the reaction kettle to obtain a premix; and adding tween 20 into the premix to obtain a liquid accelerator. The liquid accelerator prepared in the present invention also achieves the effect of being free of alkali, chlorine, and fluorine while ensuring the effects of rapid setting, early strength, and stability.

Classes IPC  ?

• C04B 24/28 - Composés macromoléculaires obtenus autrement que par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
• C04B 24/04 - Acides carboxyliquesLeurs sels, anhydrides ou esters
• C04B 24/06 - Acides carboxyliquesLeurs sels, anhydrides ou esters comportant des groupes hydroxyle

Abrégé

Disclosed in the present invention are a high-strength and ductility multi-component soft magnetic alloy and a preparation method therefor. The high-strength and ductility multi-component soft magnetic alloy consists of the following components in atomic percentages: 32-45% of Fe, 24-29% of Co, 24-29% of Ni, 2.5-8% of Al, 1.5-3.5% of Ti, 1.0-5% of Ta, 0-2% of Nb, and 0-2% of Mo. The multi-component alloy matrix prepared by the present invention mainly presents the structural features of a face-centered cubic structure, has excellently matched strength and plasticity as well as relatively low coercive force and relatively high saturation magnetization, and can be made into important devices to be applied to the fields of power industry, automatic control, mobile communications, etc.

Classes IPC  ?

• H01F 1/147 - Alliages caractérisés par leur composition

Abrégé

An expressway tunnel accident real-time risk prediction method and apparatus, a device, and a medium. The method comprises: acquiring accident data, entrance and exit traffic flow data, and weather data of a target tunnel within a preset historical time period; acquiring entrance and exit traffic flow data and weather data corresponding to each accident of the target tunnel occurring within the preset historical time period, and acquiring contrast data of the entrance and exit traffic flow data and the weather data; taking the entrance and exit traffic flow data, the weather data, and the contrast data as an experimental data set; on the basis of the experimental data set, extracting accident threatening features affecting a tunnel accident risk; training a tunnel accident real-time risk prediction model on the basis of the experimental data set and the accident threatening features; and predicting the tunnel accident risk in real time on the basis of the trained tunnel accident real-time risk prediction model. An expressway tunnel accident risk can be predicted in real time.

Classes IPC  ?

• G08G 1/01 - Détection du mouvement du trafic pour le comptage ou la commande

Abrégé

Provided in the present invention is a preparation method for an arsenic-iron alloy. The preparation method comprises the steps of: S1, subjecting arsenic powder and iron powder at a molar ratio of (0.1-2) : 1 to a ball-milling treatment under the protection of an inert atmosphere, so as to obtain a pretreated substance; and S2, subjecting the pretreated substance to a vacuum hot pressing sintering treatment, so as to obtain an arsenic-iron alloy, wherein the vacuum hot pressing sintering treatment comprises: placing the pretreated substance in a vacuum environment, sintering the pretreated substance, and applying a pressure ranging from 30 MPa to 50 MPa to the pretreated substance during the sintering process, the sintering process comprising: heating the pretreated substance from room temperature to 400-500ºC and maintaining the temperature for 0.5-1 hour, and then heating the pretreated substance from 400-500ºC to 600-800ºC and maintaining the temperature for 0.5-1 hour. In the present invention, an arsenic-iron alloy with high performance and low leaching toxicity can be obtained.

Classes IPC  ?

• C22C 1/04 - Fabrication des alliages non ferreux par métallurgie des poudres
• C22C 28/00 - Alliages à base d'un métal non mentionné dans les groupes
• C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres
• C22C 38/00 - Alliages ferreux, p. ex. aciers alliés

Abrégé

A static mixed-flow separation net applied to a spiral wound membrane. The static mixed-flow separation net is composed of several separation net strips (1), which are fixed by means of a separation net strip frame (3) and are uniformly distributed at equal intervals in a feeding direction. Each separation net strip (1) is composed of several separation net units (2); each separation net unit (2) is provided with three fluid channels, which are perpendicular to a feeding fluid direction; and a fluid is subjected to a static flow mixing in the separation net units (2), such that no vortex and turbulent flow are generated, and no fluid dead corner exists when the fluid flows through the separation net, in this way, the surface concentration of substances retained on the membrane is reduced, the mass transfer rate is increased, and fluid mixing is strengthened; and while the concentration polarization and the membrane pollution are effectively reduced, the pressure drop and pump consumption, which are increased due to the addition of the separation net during membrane operation are reduced, and thus the energy utilization rate is increased.

Classes IPC  ?

• B01D 65/08 - Prévention de l'encrassement de la membrane ou de la polarisation par concentration
• B01D 63/10 - Modules à membranes enroulées en spirale
• B01D 69/00 - Membranes semi-perméables destinées aux procédés ou aux appareils de séparation, caractérisées par leur forme, leur structure ou leurs propriétésProcédés spécialement adaptés à leur fabrication

Abrégé

Disclosed in the present invention are a method for detecting a nucleic acid on the basis of a DNA nanorobot, and the use thereof in a kit or a biosensor. According to the detection method, a padlock probe and a DNAzyme strand are designed according to the sequence of a to-be-detected target gene, and primers, a protection strand and a substrate strand are also correspondingly designed; the amplification of the sequence of a target gene is achieved by means of the NickRCA technique; a DNA nanorobot is constructed by means of DNAzyme; the amplification product binds to the DNA nanorobot to change the conformation of the DNAzyme; the activity of the enzyme is activated to cleave the substrate strand under the action of metal ions to achieve the directional amplification of the signal; a nano-marker is added to the reaction system to serve as a signal reference; and qualitative and/or quantitative analysis of the to-be-detected target gene is achieved by means of sensor detection.

Classes IPC  ?

• C12Q 1/68 - Procédés de mesure ou de test faisant intervenir des enzymes, des acides nucléiques ou des micro-organismesCompositions à cet effetProcédés pour préparer ces compositions faisant intervenir des acides nucléiques

Abrégé

Disclosed in the present invention are a printed mathematical formula recognition method and apparatus, and a storage medium. The method comprises: acquiring a printed mathematical formula picture, and performing preprocessing; extracting a first feature matrix of the printed mathematical formula picture on the basis of an encoder; extracting context semantic features of the first feature matrix, so as to obtain a second feature matrix; performing relative position encoding on the second feature matrix by using relative position encoding technology, so as to obtain a third feature matrix; and inputting the third feature matrix into a decoder, so as to obtain a Latex-format sequence of a printed mathematical formula, wherein the third feature matrix is formed by sequentially extracting context semantic features and relative position features between elements again on the basis of the first feature matrix, and the extracted features can more accurately reflect the characteristics of the printed mathematical formula, thereby improving the final accuracy of printed mathematical formula recognition.

Classes IPC  ?

• G06V 30/10 - Reconnaissance de caractères
• G06N 3/04 - Architecture, p. ex. topologie d'interconnexion
• G06V 10/82 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant les réseaux neuronaux
• G06V 30/148 - Découpage de zones de caractères
• G06V 30/18 - Extraction d’éléments ou de caractéristiques de l’image

Abrégé

Disclosed in the present invention is an oxygen supply, cooling and dust removal method for tunnel construction. The method comprises: continuously digging a plurality of pilot tunnels forward in the same direction; providing a transverse channel, which is used for connecting the pilot tunnels, every X meters in the tunneling direction; importing outside air into a tunnel face of each pilot tunnel in a blowing ventilation mode; measuring the oxygen content, the temperature and the dust content near the tunnel face; when the oxygen content reaches a threshold A1, performing local oxygen production near the tunnel face by means of a mobile oxygen production device; when the temperature reaches a threshold B1, performing local cooling near the tunnel face by means of a mobile cooling device; and when the dust content reaches a threshold C1, performing local dust collection near the tunnel face by means of a mobile dust removal device. When a blowing ventilation mode gradually fails, the operation environment near a tunnel face is improved in a targeted mode by means of mobile devices, such that construction requirements can be met.

Classes IPC  ?

• E21F 1/00 - Ventilation des mines ou tunnelsDistribution des courants de ventilation
• E21F 5/00 - Moyens ou procédés pour empêcher, fixer, abattre ou enlever la poussièrePrévention des explosions ou des feux
• E21F 17/18 - Adaptations particulières des dispositifs de signalisation ou d'alarme

Abrégé

A pancreatin inactivation stent drainage tube (1) and a preparation method therefor. The stent drainage tube (1) comprises a stent drainage tube skeleton (4) and pancreatin inactivation layers (2, 3). The stent drainage tube skeleton (4) is made of a transparent medical polyvinyl chloride (PVC) or polyimide (PI) material by means of 3D printing technology, and is of a tubular structure with a smooth outer surface and a wrinkled inner surface. The inactivation layers (2, 3) consist of one or two of Ag and Cu nanoparticle layers of a wrinkled structure. The inactivation layers (2, 3) coat the inner and outer surfaces of the skeleton of the tubular structure. The outer surface is provided with barbs (5) for fixing, and side holes for observation, etc. to remedy the defect that existing stent drainage tubes for pancreaticojejunostomy do not have inactivating activity against pancreatin, thereby improving the safety of pancreaticojejunostomy.

Classes IPC  ?

• A61M 27/00 - Appareillage pour drainage des blessures

Abrégé

Disclosed are a method for constructing a simplified model of a railway vehicle, a collision simulation method and a system. According to the construction method, a refined model is used as a reference for constructing simplified models; the vehicle body at the middle part of a train car is arranged to be of a solid single-shell structure, and two ends are set to have a hollow double-shell structure; setting thickness simplification ratios for a plurality of groups of simplified models, and designing a longitudinal collision working condition and a transverse collision working condition; then, under each type of collision working condition, performing collision simulation on the refined model and on the simplified model under each group of thickness simplification ratios, to obtain a collision response curve for each; then, based on the collision response curves of the simplified models and the refined model, using a CORA evaluation method to calculate a total CORA value corresponding to each simplified model; and finally, selecting an optimal simplified model from the simplified models having a high total CORA value. The simplified models constructed by the present invention are not only applicable for dynamic collision response analysis in complex train accident scenarios, but are likewise applicable in researching passenger secondary collision injuries.

Classes IPC  ?

• G06F 30/15 - Conception de véhicules, d’aéronefs ou d’embarcations
• G06F 30/23 - Optimisation, vérification ou simulation de l’objet conçu utilisant les méthodes des éléments finis [MEF] ou les méthodes à différences finies [MDF]
• G06F 119/14 - Analyse des forces ou optimisation des forces, p. ex. forces statiques ou dynamiques

Abrégé

Disclosed are an optimized amplification and at-scale production method for regulatory T cells. The method comprises the following steps: preparing a resuspension comprising umbilical cord blood regulatory T cells; transferring the resuspension comprising umbilical cord blood regulatory T cells into a sterile tube provided with a magnetic pole, and magnetically separating CD4+CD25+CD127- regulatory T cells; adding an amplification and culturing solution into regulatory T cells with magnetic beads for culturing, carrying out initial culturing for 1-2 days, then subculturing once every 1-3 days, and co-culturing for 40-50 days. By means of one-step separation, a good cell amplification effect is achieved (time is shortened and cell activity is good), effective amplification time is increased from 18 to 40-50 days, and the amplification effect does not gradually worsen; regulatory T cell amplification generations and quantity are greatly increased, and the needs of clinical patients can be meet.

Classes IPC  ?

• C12N 5/0783 - Cellules TCellules NKProgéniteurs de cellules T ou NK

Abrégé

A high recovery rate in-vitro amplification method for cryo-preserved umbilical cord blood regulatory T cells, which comprises the following steps: performing recovery on cryo-preserved umbilical cord blood regulatory T cells after primary amplification, and then using a serum-free culture solution to re-suspend the cells; adding the obtained re-suspended solution into an an amplification and culturing solution and performing secondary amplification and culturing, and after 1-2 days of initial culturing, carrying out sub-culturing once every 1-3 days, and co-culturing for 13 days or more, where IL-2 is further added into the amplification and culturing solution. In the present method, recovery and amplification can be re-performed on previously amplified and cryo-preserved regulatory T cells; and the activity of the recovered regulatory T cells subjected to secondary amplification can reach 90% or more, and amplification can continue to be performed (e.g. a third time or a fourth time), and the amplified cells may also be used for clinical treatment, greatly shortening the amount of time that patients await regulatory T cells, and clinical on-demand acquisition can be satisfied.

Classes IPC  ?

• C12N 5/0783 - Cellules TCellules NKProgéniteurs de cellules T ou NK

Abrégé

An antimony-sulfide-containing ore-based molten salt electrolysis continuous production method and apparatus. The method comprises: (1) putting antimony sulfide ore and eutectic molten salt in a high-antimony electrolytic furnace for constant-current voltage-limiting heating electrolytic smelting, in the smelting process, blowing an inert gas to stir the melt, and respectively discharging a metal antimony liquid and elemental sulfur from an antimony discharge port of the high-antimony electrolytic furnace and a flue gas port of the high-antimony electrolytic furnace; and (2) feeding the post-electrolysis melt obtained in step (1) into a depletion electrolytic furnace through a chute for constant-voltage dilution electrolysis, supplementing molten salt before the electrolysis, respectively discharging the metal antimony liquid and elemental sulfur from an antimony discharge port of the depletion electrolytic furnace and a flue gas port of the depletion electrolytic furnace, and discharging post-depletion slag from a slag discharge port. According to the design of molten salt electrolysis antimony smelting in two connected furnaces, the whole electrolysis process can be carried out simultaneously under two different process parameters according to requirements, so that the purpose of enabling low antimony content in the molten salt electrolysis slag, and molten salt and slag component separation is achieved, and the economic and feasible requirements of industrial production technology are satisfied.

Classes IPC  ?

• C25C 3/34 - Production, récupération ou affinage électrolytique de métaux par électrolyse de bains fondus des métaux non prévus dans les groupes
• C25C 7/06 - Conduite ou entretien
• C25B 1/01 - Produits
• C25B 15/00 - Conduite ou entretien des cellules

Abrégé

The present invention sets forth an alcohol fuel cracking hydrogen production apparatus and a system, wherein the alcohol fuel cracking hydrogen production apparatus comprises: successively securely connected from left to right, an exhaust inlet unit, an alcohol fuel cracking hydrogen production unit and an exhaust outlet unit; on the whole, the alcohol fuel cracking hydrogen production unit has a hollow cylindrical structure, and comprises a nickel-based catalyst microchannel and a copper-based catalyst microchannel; in a cross-section perpendicular to the central axis of the alcohol fuel cracking hydrogen production unit, the nickel-based catalyst microchannel and/or the copper-based catalyst microchannel form a non-equidistant circular distribution. The apparatus, system and control method provided in the present invention can solve the problem of single-catalyst-structure alcohol fuel cracking hydrogen production technology being unable to fully utilize the high-temperature exhaust of an engine, and also of an adverse effect on the service life of the catalyst.

Classes IPC  ?

• C01B 3/22 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par décomposition de composés organiques gazeux ou liquides
• F01N 5/02 - Silencieux ou dispositifs d'échappement combinés ou associés à des dispositifs bénéficiant de l'énergie des gaz évacués les dispositifs utilisant la chaleur

Abrégé

A small-molecule generation method based on a pharmacophore model, and a device and a medium. The method comprises: representing a pharmacophore model by a fully connected graph; extracting a feature vector of the pharmacophore model from the fully connected graph of the pharmacophore model by using a feature extraction model based on a graph neural network; performing random sampling on a specified latent variable distribution, so as to obtain a latent variable; and inputting the latent variable and the feature vector of the pharmacophore model into a pre-trained decoder, so as to generate molecules matching the pharmacophore model, wherein the trained decoder is a decoder obtained by training a variational autoencoder by using a training sample. The method can be applied to ligand-based drug design, receptor-based drug design, optimization of lead compounds and the finding of substitutes addressing drug resistance, and is used for constructing molecular databases for virtual screening, such that molecular screening based on large-scale federated databases is replaced. Therefore, blind experimental works are reduced, the time and cost for researching and developing drugs are saved on, and the pressure on researching and developing drugs is relieved.

Classes IPC  ?

• G16C 20/50 - Conception moléculaire, p. ex. de médicaments
• G16C 20/70 - Apprentissage automatique, exploration de données ou chimiométrie
• G06N 3/045 - Combinaisons de réseaux
• G06N 3/047 - Réseaux probabilistes ou stochastiques
• G06N 3/08 - Méthodes d'apprentissage

Abrégé

A method for co-processing hazardous waste by a rotary kiln and a sintering machine. The method comprises: 1) pyrolysis: feeding high-volatile hazardous waste into a rotary kiln (C1) from a kiln head (1), feeding combustion-supporting air into the rotary kiln (C1) from a kiln tail (3), and pyrolyzing the high-volatile hazardous waste in a pyrolysis chamber (20201); 2) incineration: feeding material residues obtained after pyrolysis and pyrolysis gas into an incineration chamber (20202), mixing with the combustion-supporting air and burning; 3) flue gas circulation: circulating part of flue gas obtained after the incineration into the rotary kiln (C1) from the kiln head (1); 4) cooling: cooling hot residues obtained after the incineration to obtain cold residues; and 5) sintering: placing the cold residues on a sintering trolley and igniting for sintering, in step 3), the proportion of the amount of the circulated flue gas entering the rotary kiln (C1) in the total flue gas amount being calculated according to the content of combustibles in the flue gas obtained the incineration and the temperature of the flue gas. According to the technical solution of using a counter-flow rotary kiln and a sintering machine, ring formation and slagging during the incineration of iron-containing solid waste in the rotary kiln (C1) is effectively relieved, and accurate control on the amount of the circulated flue gas in the rotary kiln (C1) is achieved.

Classes IPC  ?

• F23G 5/027 - Procédés ou appareils, p. ex. incinérateurs, spécialement adaptés à la combustion de déchets ou de combustibles pauvres comportant un traitement préalable par pyrolyse ou par gazéification
• F23G 5/14 - Procédés ou appareils, p. ex. incinérateurs, spécialement adaptés à la combustion de déchets ou de combustibles pauvres comportant un chauffage supplémentaire comportant une combustion secondaire
• F23G 5/32 - Procédés ou appareils, p. ex. incinérateurs, spécialement adaptés à la combustion de déchets ou de combustibles pauvres les déchets ou les combustibles pauvres étant soumis à un mouvement tourbillonnant, p. ex. incinérateurs cycloniques

Abrégé

Disclosed is a method for synchronously removing fluorine, chlorine and iron in a solution, comprising: continuously introducing gas containing a strong oxidizing gas into a solution containing Fe2+, F-and Cl-, at the same time adding a catalyst, adding a neutralizer to control the pH value to be 1.5-4.2, undergoing a reaction under shear enhancement, and performing solid-liquid separation to obtain a purified solution and iron-removed slag. In the present invention, chlorine ions are catalyzed by the catalyst to react with the strong oxidizing gas to form chlorine, in the presence of the metal mineral type catalyst, a seed crystal does not need to be introduced, only the pH value is controlled, and shear enhancement is performed, so that iron-removed slag mainly in a goethite crystalline form having a small particle size can be efficiently generated, such that more fluorine ions are adsorbed, and thus efficient adsorptive fluorine removal is achieved. Therefore, by means of the method of the present invention, fluorine, chlorine and iron can be synchronously and efficiently removed. According to the present invention, fluorine, chlorine and iron can be removed from the solution in one step, and the method is an efficient, clean and energy-saving purification process.

Classes IPC  ?

• C22B 3/44 - Traitement ou purification de solutions, p. ex. de solutions obtenues par lixiviation par des procédés chimiques
• C22B 19/20 - Obtention du zinc autrement que par distillation
• C22B 23/00 - Obtention du nickel ou du cobalt

Abrégé

A dynamic speed limit control method for a highway bottleneck section in a mixed traffic flow environment, comprising: S1, identifying a highway bottleneck section by using a traffic event detection device or a construction operation reporting system; S2, setting a speed limit control period and a model prediction period; S3, dividing a controlled section according to a region where the bottleneck section is located; S4, collecting traffic flow data of a highway section to be controlled by using a traffic flow monitoring device; S5, optimizing a cell transmission model according to the collected traffic flow data and traffic flow characteristics of a normal state, a speed-limited state, and a bottleneck section of a highway in a mixed traffic flow environment to obtain an improved cell-transmission model; and S6, selecting an optimal speed limit value according to the improved cell-transmission model, and publishing the optimal speed limit value by means of a dynamic speed limit control system.

Classes IPC  ?

• G08G 1/09 - Dispositions pour donner des instructions variables pour le trafic
• G08G 1/0967 - Systèmes impliquant la transmission d'informations pour les grands axes de circulation, p. ex. conditions météorologiques, limites de vitesse

Abrégé

11 structure are dispersed and distributed in the matrix, and the nanoparticles and the BCC matrix maintain a complete coherent orientation relationship, so that the alloy has the compression strength remarkably improved, has the deformable capability enhanced, has the resistivity improved, has the temperature coefficient of resistance reduced, and has the mechanical and resistive performances comprehensively improved.

Classes IPC  ?

• C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
• H05B 3/12 - Éléments chauffants caractérisés par la composition ou la nature des matériaux ou par la disposition du conducteur caractérisés par la composition ou la nature du matériau conducteur

Abrégé

Provided is a liver puncture outfit, which relates to an intrahepatic blood flow blocking instrument, and comprises a sleeve (1), the head end thereof being provided with a V-shaped clamping nozzle (11), the tail end thereof being provided with a sleeve ring (12), the outer edge of the sleeve (1) being provided with an air bag (13) disposed along the axial direction of the sleeve (1), the outer edge of the air bag (13) being provided with an expansion sleeve (14) having a smooth outer surface, the air bag (13) being capable of pushing the radius of the expansion sleeve (14) to change, and the sleeve (1) being provided with scales; and a core rod (2), comprising a rod body (21) with an angle instrument, a spine end (22) provided with a feedback element, and a holding part (23), the spine end (22) being arranged at one end of the rod body (21), and the holding part (23) being arranged at the other end of the rod body (21). The core rod (2) can be inserted into the sleeve (1) and be in smooth contact with the inner surface of the sleeve (1), the sleeve ring (12) and the holding part (23) are arranged in a limiting manner, and when the core rod (2) is inserted into the sleeve (1), the spine end (22) is higher than the V-shaped clamping nozzle (11), and the expansion sleeve (14) is used as a movable piece. In the process of puncturing the liver and establishing the channel, the expansion sleeve (14) extrudes the punctured liver by means of expansion to achieve the purpose of hemostasis, and the expansion sleeve (14), before exiting the core rod (2), can pass through the tunnel of the sleeve (1) and be accurately placed, so as to clip the blood vessel in front of the V-shaped clamping nozzle (11), thereby achieving blood flow blocking.

Classes IPC  ?

• A61B 17/34 - TrocartsAiguilles à ponction

Abrégé

Disclosed in the present invention is a short-process method for preparing high-purity metal arsenic from arsenic-containing solid waste. The method comprises carrying out oxidative alkaline leaching on arsenic-containing solid waste in nonferrous metallurgy, so as to obtain an arsenic-containing alkaline leaching solution; sequentially adding into the arsenic-containing alkaline leaching solution a mixed magnesium-ammonium reagent consisting of a carboxyl and/or hydroxyl-containing water-soluble polymer organic matter, a magnesium compound and an ammonium compound, and a hydrophobic polymer organic matter having a periodic geometric structure, and stirring same for a reaction, so as to obtain organic matter-wrapped double arsenate crystals; and roasting the organic matter-wrapped double arsenate crystals, mixing same with carbon powder to carry out reduction roasting, and condensing and recovering metal arsenic from a flue gas. The method can not only achieve a safe disposal of the arsenic-containing solid waste in nonferrous metallurgy, but also implement resource utilization of arsenic components therein to prepare a high-purity metal arsenic product, and the method is simple, rapid, and highly-efficient, realizes low cost, and is satisfactory to industrial production.

Classes IPC  ?

• C22B 30/04 - Obtention d'arsenic
• 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 1/00 - Traitement préliminaire de minerais ou de débris ou déchets métalliques
• C22B 5/10 - Procédés généraux de réduction appliqués aux métaux par voie sèche par des agents réducteurs carbonés solides

Abrégé

A preparation method for nano tungsten carbide (WC) powder, specifically comprising the following steps: (1) sequentially dissolving a tungsten salt, an organic monomer, a cross-linking agent, and a carburant in deionized water to form a transparent solution, and then adding an initiator to prepare a gel; and (2) drying the gel and performing calcination to obtain nano WC powder. The WC powder prepared by the method has high quality, near-spherical morphology, and fine, uniform, and nanoscale particle size, thus avoiding a plurality of defects of powder prepared by other methods, such as an uneven particle size and irregular morphology.

Classes IPC  ?

• C01B 32/949 - Carbures de tungstène ou de molybdène

Abrégé

A flexible vortex generator for inhibiting vortex-induced vibration of bridges, comprising a fixed base (1) and a clamping sleeve disposed on the fixed base (1). A flexible part (3) is disposed on the clamping sleeve; one end of the flexible part (3) is detachably connected to the clamping sleeve, and the other end of the flexible part (3) is a free end and can freely swing along with wind. The flexible vortex generator does not need any external energy input, and an existing bridge device does not need to be changed; only self-adaptive deformation of the flexible part is utilized, a series of vortexes are induced by means of flapping of a flexible structure, the flow form of the surface of a bridge is changed, the wind resistance of the bridge is enhanced, and a vortex-induced vibration phenomenon of the bridge is remarkably inhibited.

Classes IPC  ?

• E01D 19/00 - Détails des ponts

Abrégé

The present invention relates to the field of high-entropy alloys, and relates to rapid design and preparation of a novel precipitation-hardened high-entropy alloy by using a diffusion multiple technology. According to the present invention, a high-entropy alloy and/or a medium-entropy alloy are/is prepared into a diffusion multiple; then, a diffusion experiment is performed to obtain a single-phase solid solution diffusion layer; the components of the diffusion layer are tested to obtain the content range of each element in the diffusion layer; the components of the precipitation-hardened high-entropy alloy are obtained according to the content range and type design of each element in the diffusion layer; the regional typical components of the precipitation-hardened high-entropy alloy obtained on the basis of high-throughput screening are selected for alloy smelting, homogenization treatment, cold rolling, solid solution treatment, and aging treatment, so as to prepare a precipitation-hardened high-entropy alloy having excellent strength and plasticity combination. According to the present invention, a component range of the precipitation-hardened high-entropy alloy is quickly screened by using the diffusion multiple technology, and a new product having excellent performance is prepared. The present invention provides a new idea for rapid design of the precipitation-hardened high-entropy alloy, and provides necessary conditions for industrialization of the precipitation-hardened high-entropy alloy.

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 1/02 - Fabrication des alliages non ferreux par fusion
• C22F 1/00 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid

Abrégé

xabcd22, wherein 1.03＜x≤1.3, 0.50≤a≤0.65, 0.30≤b≤0.45, 0＜c≤0.10, a+b+c＝1, and 0≤d≤0.025. The high-voltage ternary positive electrode material comprises an inner core and a shell layer. The inner core comprises a lithium nickel manganese cobalt oxide ternary material, the molar ratio of nickel, manganese, and cobalt being (0.65-0.80):(0.05-0.60):(0.02-0.15). The shell layer comprises a lithium nickel manganese oxide binary material, the molar ratio of nickel to manganese being (0.10-0.60):(0.60-0.90). M is a doping element derived from the inner core and/or the shell layer. The high-voltage ternary positive electrode material can stably work under a ultrahigh voltage of 4.7 V, and has a ultrahigh specific discharge capacity and an excellent rate capability.

Classes IPC  ?

• H01M 4/505 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de manganèse d'oxydes ou d'hydroxydes mixtes contenant du manganèse pour insérer ou intercaler des métaux légers, p. ex. LiMn2O4 ou LiMn2OxFy
• H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p. ex. LiNiO2, LiCoO2 ou LiCoOxFy

Abrégé

Disclosed in the present invention are a heavy-haul train and a longitudinal dynamics traction operation optimization control system and method thereof. A model prediction function is added to a locomotive wireless double heading system so as to suppress large longitudinal impulse that is likely to be generated when the operation speed of the heavy-haul combined train is regulated, especially when the heavy-haul train is switched at a grade change point working condition, and the major potential safety hazard that affects the safe and stable operation of the heavy-haul combined train is avoided. In a distributed dynamic marshalling mode of the heavy-haul combined train, the requirements for the difference between the tractive force and the regenerative braking force of a master locomotive and slave locomotives of a multi-locomotive under the same working condition are predicted by the model, the amplitude of the power for the traction and the regenerative braking of the master locomotive and the slave locomotives is reasonably adjusted, and asynchronous control of the train under different working conditions is gradually achieved, so that the purposes of optimizing the dynamics performance of the heavy-haul combined train and reducing the longitudinal impulse of the heavy-haul train are achieved, and the operation of the train is guaranteed.

Classes IPC  ?

• B61L 23/08 - Dispositifs de commande, d'avertissement ou autres dispositifs de sécurité le long de la voie ou entre les véhicules ou les trains pour commander le trafic dans une direction uniquement
• B61L 15/00 - Indicateurs de signalisation sur le véhicule ou sur le train

Abrégé

An measured positioning surgical navigation system (100) and a method for surgical navigation having positioning, which relate to the technical field of medical informatics, and specifically comprise: a three-dimensional image reconstruction module (110) comprising CT equipment, magnetic resonance equipment, and ultrasound equipment; a three-dimensional positioning error correction module (120) comprising a plurality of base stations and a plurality of positioning chips (121); a sensor is arranged at a position at the tail of a scalpel (130); and the CT equipment, the magnetic resonance equipment, the ultrasound equipment, the base stations, the positioning chips (121), and the sensor all establish a communication connection with the controller (140). A first three-dimensional image is constructed according to each piece of equipment of the three-dimensional image reconstruction module (110), a second three-dimensional image of a lesion of a patient is constructed according to the three-dimensional positioning error correction module (120), and then the two three-dimensional images are combined and corrected to obtain a target positioning data set; and navigation for a surgical step is performed integrating the real-time position of the scalpel (130). The safety, efficiency, and accuracy of a surgery are improved.

Classes IPC  ?

• A61B 34/20 - Systèmes de navigation chirurgicaleDispositifs pour le suivi ou le guidage d'instruments chirurgicaux, p. ex. pour la stéréotaxie sans cadre
• A61B 34/00 - Chirurgie assistée par ordinateurManipulateurs ou robots spécialement adaptés à l’utilisation en chirurgie

Abrégé

A column bending moment adaptive balancing mechanism, comprising a column (10), a masthead (20), a working device (30), a lever-type balancing mechanism (40), a winch steel wire rope (50), and a back rope (60). The masthead (20) comprises a masthead frame (21) and a front fixed pulley block (22), the masthead frame (21) is mounted on the column (10), and the front fixed pulley block (22) is mounted at the front end of the masthead frame (21). The working device (30) is mounted on the column (10); the lever-type balancing mechanism (40) is hinged to the masthead frame (21); the winch steel wire rope (50) penetrates through the masthead frame (21), and is then wound between the front fixed pully block (22) and a movable pulley block (31) of the working device (30) by several turns, penetrates through one end of the lever-type balancing mechanism (40), and is finally fixed to the masthead frame (21); the back rope (60) is connected to the other end of the lever-type balancing mechanism (40). The column bending moment adaptive balancing mechanism can adaptively reduce the bending moment of the column, improve the stability of the column, reduce deformation of the column, and improve the hole forming quality of equipment.

Classes IPC  ?

• E21B 19/00 - Manipulation de tiges, tubages, tubes ou autre objets analogues à l'extérieur du trou de forage, p. ex. dans la tour de forageAppareils pour faire avancer les tiges ou les câbles
• E21B 19/02 - Dispositifs de suspension des tiges ou des câbles

Abrégé

22244 and the like can be obtained.

Classes IPC  ?

• C07F 15/00 - Composés contenant des éléments des groupes 8, 9, 10 ou 18 du tableau périodique

Abrégé

Provided in the present invention are a dolomite resource deep utilization complete treatment system and method. The system comprises a primary calcination device, a carbon dioxide capture device, a digestion device, a carbonization separation device, a pyrolysis device, and a secondary calcination device. The primary calcination device comprises a dolomite calciner, a plurality of enclosing boards, and a gas capture pipeline, wherein an exhaust chamber is formed among the enclosing boards, the top of a furnace of the dolomite calciner, and an outer wall of a discharged material bin; the exhaust chamber is in communication with the carbon dioxide capture device through a gas capture pipeline; the carbonation separation device comprises a carbonation reaction tank, wherein a gas inlet of the carbonation reaction tank is in communication with a gas outlet of the carbon dioxide capture device; and the pyrolysis device comprises a pyrolysis kettle and a vacuum pump, wherein the vacuum pump maintains a negative pressure state in the pyrolysis kettle. By means of the present invention, the process flow can be optimized, the energy consumption can be reduced, the resource utilization degree can be increased, and the calcium-magnesium separation is also more complete.

Classes IPC  ?

• C04B 2/12 - Préchauffage, cuisson, calcination ou refroidissement dans des fours à cuve ou dans des fours verticaux
• C01B 32/50 - Anhydride carbonique
• C04B 2/08 - Dispositifs à cet effet
• C04B 2/06 - Extinction avec addition de substances, p. ex. d'agents hydrophobes
• C01F 11/18 - Carbonates

Abrégé

The present invention provides a method for treating a copper-containing etching waste liquid. The method comprises the steps of: preparing a nanocrystalline seed containing basic copper chloride and synthesizing a monocrystal containing basic copper chloride; subjecting an acidic etching waste liquid, an ammonia-containing solution, and a slurry of the monocrystal containing basic copper chloride to an agglomeration reaction to obtain basic copper chloride grains and a copper-removed waste liquid; reacting an alkaline etching waste liquid with sulfuric acid to obtain a copper sulfate mixed solution; and then sequentially subjecting the copper sulfate mixed solution obtained by reacting the alkaline etching waste liquid with sulfuric acid to evaporation, concentration and cooling crystallization to obtain a copper sulfate pentahydrate solid. According to the present invention, a low-cost and high-benefit treatment can be finished on the copper-containing etching waste liquid. Under the condition of a low investment, not only can the copper in the copper-containing etching waste liquid be treated and recycled, but various high-value products can also be obtained, such that dual benefits to the environment and the economy can be achieved.

Classes IPC  ?

• C01G 3/05 - Chlorures
• C01G 3/10 - Sulfates

Abrégé

A lithium-loaded composite framework material, a preparation method therefor, and an application thereof. The lithium-loaded composite framework material is a thin-film encapsulation structure in which a plurality of hollow thin-walled carbon nanospheres are encapsulated; the inner walls of the hollow thin-walled carbon nanospheres are compounded with low lithium precipitation overpotential nanoparticles; a thin film is a high lithium precipitation overpotential film layer; the film layer is single-layer or multilayer; the film layer is selected from a carbon layer, a polymer film layer, a solid electrolyte film layer, an oxide film layer, or a mixed ionic/electronic conductor film layer; the low lithium precipitation overpotential nanoparticle is defined as a simple substance or compound having a lithium reaction potential greater than 0 V; the high lithium precipitation overpotential film layer is defined as a film layer in which an electrodeposition potential of lithium on the surface of the film layer is less than 0 V. Compared with thin films, the inner wall of the lithium-loaded composite framework material has a lower lithium precipitation potential, so that lithium ions are selectively induced into a carbon cavity and are uniformly deposited in the carbon nanospheres, thereby achieving the encapsulation and continuous and uniform deposition/dissolution of lithium metal.

Classes IPC  ?

• H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
• H01M 4/48 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques
• H01M 4/583 - Matériau carboné, p. ex. composés au graphite d'intercalation ou CFx

Abrégé

2x2x2xx thin layer, drying same, and then separating the thin layer from polyvinylidene fluoride, wherein the modifier is a functional organic matter capable of providing hydroxyl and/or carboxyl. The basic concept of an ion transport behavior and a two-dimensional nanosheet surface modification method for selective ion separation are discussed. The mixed carboxyl and hydroxyl modified surface brings about a new way of thinking for the design of an ion selective membrane. The cognition of the transport of solvated ions in a nano limited two-dimensional channel is further improved, and the potential application thereof is explored. In contrast to a traditional size exclusion mechanism and cognition of low-selectivity of a 2D material-based membrane, the invention demonstrates an interconnected ionized water network in a membrane matrix under a high ion concentration.

Classes IPC  ?

• B01D 67/00 - Procédés spécialement adaptés à la fabrication de membranes semi-perméables destinées aux procédés ou aux appareils de séparation
• B01D 71/02 - Matériaux inorganiques
• B01D 69/02 - Membranes semi-perméables destinées aux procédés ou aux appareils de séparation, caractérisées par leur forme, leur structure ou leurs propriétésProcédés spécialement adaptés à leur fabrication caractérisées par leurs propriétés
• C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
• B01D 61/00 - Procédés de séparation utilisant des membranes semi-perméables, p. ex. dialyse, osmose ou ultrafiltrationAppareils, accessoires ou opérations auxiliaires, spécialement adaptés à cet effet
• B01D 69/06 - Membranes planes

Abrégé

A microelectrode sensor for detecting Staphylococcus aureus, and a preparation method and application method therefor. The microelectrode sensor is a three-electrode system sensor, the counter electrode thereof is a clamp wire electrode, the reference electrode thereof is an Ag/AgCl electrode, and the working electrode thereof is a silver microelectrode modified with chitosan, catechol and Staphylococcus aureus aptamers. The microelectrode sensor is constructed on the basis of a microelectrode having a micro-nano structure on the surface, a dual medium (Fc-Ru3+), chitosan and catechol. The working electrode of the microelectrode sensor can specifically capture Staphylococcus aureus.

Classes IPC  ?

• G01N 27/327 - Électrodes biochimiques
• G01N 27/48 - Systèmes utilisant la polarographie, c.-à-d. la mesure des variations d'intensité sous une tension qui varie lentement

Abrégé

The present invention belongs to the field of intelligent epidemic prevention, and relates to an active epidemic prevention apparatus and method for intelligent recovery and detection of a mouth and nose mask. The present apparatus collects information such as GPS of a user in combination with a device such as a mobile phone, and accurately recovers and manages a used mouth and nose mask of the user: recovering, sealing, storing without cross-contamination, identifying and distinguishing same, detecting a droplet sample on the mouth and nose mask to obtain a result, and feeding back information in combination with the information such as GPS to a supervision department for comprehensive evaluation, thereby realizing early warning and accurate epidemic prevention. The present apparatus has a clear structural design; droplet samples from three sources, the upper and lower respiratory tracts and the digestive tract, can be collected by means of the mouth and nose mask for detection; efficiency is higher; and it is prompted to replace and monitor waste mouth and nose masks, so as to detect respiratory infectious diseases such as "novel coronavirus" at an early stage and prompt medical treatment in a timely manner if a positive result is detected. This improves the activeness, automation and intelligence of epidemic monitoring, reduces the risk of cross-infection of medical personnel and subjects, and opens a new direction for supervision and prevention of respiratory infectious diseases.

Classes IPC  ?

• G16H 40/20 - TIC spécialement adaptées à la gestion ou à l’administration de ressources ou d’établissements de santéTIC spécialement adaptées à la gestion ou au fonctionnement d’équipement ou de dispositifs médicaux pour la gestion ou l’administration de ressources ou d’établissements de soins de santé, p. ex. pour la gestion du personnel hospitalier ou de salles d’opération

Abrégé

225223222223222233, and KCl.

Classes IPC  ?

• C03C 3/062 - Compositions pour la fabrication du verre contenant de la silice avec moins de 40% en poids de silice
• C03C 3/112 - Compositions pour la fabrication du verre contenant de la silice avec 40 à 90% en poids de silice contenant un halogène ou de l'azote contenant du fluor
• C03C 3/11 - Compositions pour la fabrication du verre contenant de la silice avec 40 à 90% en poids de silice contenant un halogène ou de l'azote
• A61K 6/50 - Préparations spécialement adaptées au traitement des racines dentaires
• A61K 6/75 - Apatite
• A61K 6/838 - Composés du phosphore, p. ex. apatite
• A61L 27/12 - Matériaux contenant du phosphore, p. ex. apatite
• A61L 27/54 - Matériaux biologiquement actifs, p. ex. substances thérapeutiques
• A61L 27/58 - Matériaux au moins partiellement résorbables par le corps

Abrégé

Disclosed in the present invention are a multi-component precision high-resistance alloy with high strength and toughness, and a preparation method therefor. The alloy consists of the following components, by atomic percentages: 45-60% of Ni, 15-30% of Cr, 5-20% of Fe, 5-15% of Al, 3-5% of Mn, 0.2-3% of Cu and 1-5% of Si, wherein the sum of the atomic percentage content of Mn, Cu and Si is less than or equal to 13% and greater than or equal to 4.2%, the sum of the atomic percentage content of Ni, Cr, Fe and Al is greater than or equal to 70% and less than or equal to 95.8%, and the sum of the atomic percentages of all components is 100%. A multi-component alloy matrix prepared in the present invention presents a structure characteristic mainly based on a face-centered cubic structure, and has an excellent strength and plasticity matching; in addition, the matrix has a high resistivity and an excellent resistivity stability within the wide temperature range of 773 K or less.

Classes IPC  ?

• C22C 1/02 - Fabrication des alliages non ferreux par fusion
• 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
• C22C 30/02 - Alliages contenant moins de 50% en poids de chaque constituant contenant du cuivre
• 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
• C22C 19/05 - Alliages à base de nickel ou de cobalt, seuls ou ensemble à base de nickel avec du chrome

Abrégé

The present application discloses a dental gel having a remineralizing ability, a dental patch, and a method for preparing a dental gel. The dental gel comprises the raw material components of the following mass content: 1-35% of active ingredients, 20-60% of a thickener, 20-70% of a solvent, 5-25% of a solid dispersant, 0.1-0.8% of an essence, 0.1-1.0% of a sweetening agent, and 0.1-1.0% of a pH regulator; raw materials for preparing the active ingredients comprise a calcium phosphate salt and/or bioactive glass; and the dental patch comprises a three-layer structure: an anti-sticking lining, a dental gum layer, and a peel backing lining layer, wherein the anti-sticking lining is adhered to a side of the dental gum layer, the other side of the dental gum layer is adhered to the peel backing lining layer, and the dental gum layer is a dental gel. The product of the present application is convenient to carry and use, has the effects of desensitization, remineralization, antibiosis, tooth decay prevention, whitening, and the like, has an important effect and significance in the prevention and treatment of oral diseases, and has little or no irritation on oral soft tissue.

Classes IPC  ?

• A61K 8/24 - PhosphoreSes composés
• A61K 8/21 - FluoruresLeurs dérivés
• A61K 8/25 - SiliciumSes composés
• A61K 8/19 - Cosmétiques ou préparations similaires pour la toilette caractérisés par la composition contenant des composés inorganiques
• A61K 8/20 - HalogènesLeur composés
• A61K 8/02 - Cosmétiques ou préparations similaires pour la toilette caractérisés par une forme physique particulière
• A61Q 11/00 - Préparations pour le nettoyage des dents, de la bouche ou des prothèses dentaires, p. ex. dentifricesBains de bouche
• A61P 1/02 - Préparations stomatologiques, p. ex. médicaments pour le traitement des caries, des aphtes, des périodontites

Abrégé

An electroseismic integrated monitoring method and system based on an electrostrictive material. The monitoring method comprises: sending a current signal (S402), wherein the current signal comprises at least one of the following: a multi-frequency current signal and a single-frequency current signal, the frequency of the current signal is determined according to a proppant, and the proppant performs telescopic vibration under excitation of the current signal at a predetermined frequency; obtaining an acoustic wave signal received by means of a seismic sensor (S404), wherein the acoustic wave signal is an acoustic wave signal generated for the current signal to excite the proppant to perform telescopic vibration; and determining a vibration position of the proppant at a fracturing layer according to the acoustic wave signal (S406), wherein the vibration position is used to determine a basis for propped fracture characteristics. The electrostrictive material is used as the proppant, so that the position of the proppant can be monitored by means of microseism, and the problem that in the existing hydraulic fracturing monitoring technology, the monitoring difficulty for the proppant is large is solved.

Classes IPC  ?

• G01V 11/00 - Prospection ou détection par des méthodes combinant des techniques spécifiées dans les groupes

Abrégé

Disclosed is a mouth and nose mask having visually targeted collection of a novel coronavirus sample and a visual warning, belonging to the technical field of personal protection and pathogen sample collection. The mouth and nose mask comprises ear loops (3) as well as a mouth and nose mask body (1). An outermost layer of the mouth and nose mask (1) is an antifouling layer (7), an innermost layer is a skin-friendly layer (4), and a middle layer comprises a visible pathogen-targeted collection layer (5) or/and a filter layer (6). The visible pathogen-targeted collection layer (5) contains a color-changing material (8). The mouth and nose mask can visually target and collect saliva, droplet and aerosol-borne pathogens from suspected patients or patients with respiratory infectious diseases and also provides a warning function, thereby achieving the separation of the subject and the medical staff when collecting a novel coronavirus pathogen sample, reducing the risk of infection while increasing sample collection efficiency and reducing false negative rates.

Classes IPC  ?

• A41D 13/11 - Masques de protection du visage, p. ex. pour utilisation chirurgicale ou pour utilisation en atmosphère polluée
• A61B 10/00 - Instruments pour le prélèvement d'échantillons corporels à des fins de diagnostic Autres procédés ou instruments pour le diagnostic, p. ex. pour le diagnostic de vaccination ou la détermination du sexe ou de la période d'ovulationInstruments pour gratter la gorge

Abrégé

Disclosed are a cooperative treatment method and a treatment system for high-salt solid waste ash and acidic wastewater of a steel plant. High-purity potassium chloride is generated by means of the high-salt solid waste ash produced by steel enterprises. Meanwhile, on the basis of the characteristics of the high content of heavy metals such as thallium, the high ammonia-nitrogen concentration and the high sulfate concentration in the conventional high-salt solid waste ash washing wastewater, and in combination with the characteristics that the wastewater of the steel plant contains a large amount of sulfite ions (flue gas washing wastewater) or iron ions (cold rolling rinsing wastewater) and has a low acidity, the purposes of cooperative treatment and recycling of the high-salt solid waste ash and acidic wastewater of the steel plant are achieved based on the existing high-salt solid waste ash washing and wastewater recycling processes by means of the synergistic effects of the acidic wastewater sectional supply for ash washing, sulfur and ammonia-nitrogen removal, the advanced oxidation of thallium, COD and ammonia-nitrogen by iron-carbon micro-electrolysis, and countercurrent evaporation for potassium and sodium separation, thereby greatly improving the quality of the recycled potassium and sodium salts. In addition, the technical solution provided by the present invention further has the advantages of simple process conditions, low energy consumption, no wastewater discharge, etc.

Classes IPC  ?

• C02F 9/10 - Traitement thermique
• B09B 3/00 - Destruction de déchets solides ou transformation de déchets solides en quelque chose d'utile ou d'inoffensif
• C02F 101/16 - Composés de l'azote, p. ex. ammoniac
• C02F 101/20 - Métaux lourds ou leurs composés
• C02F 103/18 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'épuration des effluents gazeux par voie humide

Abrégé

A production method for a high-strength steel plate for engineering machinery. The components of the steel and the weight percentages thereof are as follows: C＝0.10％-0.25％, Si ≤ 0.80％, Mn＝0.80％-1.20％, P ≤ 0.010％, S ≤ 0.0015％, Al＝0.005％-0.015％, Cr ≤ 1.0％, Mo ≤ 1.0％, Ni＝0.30％-2.0％, Cu ≤ 0.30％, Ti ≤ 0.015％, Nb ≤ 0.020％, V ≤ 0.080％, B ≤ 0.0040％, N ≤ 0.0040％, O ≤ 0.0010％, and H ≤ 0.00015％, with the balance being Fe at ≥95％ and inevitable impurities. The process steps for the steel plate comprise: smelting, refining, continuous casting, rolling, and heat treating. The structure of the steel plate comprises a lath martensite matrix and a small amount of residual austenite, wherein 5％-10％ of the residual austenite is on the upper surface of the steel plate, and 2％-5％ of the residual austenite is on the lower surface of the steel plate. The steel plate of the present invention has good comprehensive mechanical properties and pure steel quality, has homogeneous properties in the transverse and longitudinal structures and a rolling direction, has a good plate shape and good surface quality, and has low residual stress and exhibits excellent whole plate bending capacity in the rolling direction. The steel plate may be used in the manufacturing of large engineering machinery such as cranes and pump trucks.

Classes IPC  ?

• C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
• C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
• C22C 38/40 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel
• C22C 38/46 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du vanadium
• C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
• C22C 38/54 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du bore
• C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
• C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale

Abrégé

A locomotive wireless multi-heading remote distributed power traction operation control system. A set of differential multi-heading control unit (8) is added to a train control and management system of an original locomotive, and is combined and fused with a train control and management system (21), a brake control unit (24), a train safety monitoring device (20), a locomotive logic control unit (23), and a locomotive third-party device (25) to implement wireless multi-heading distributed power traction control operation of locomotives in a heavy haul combined train, and adapt to train multi-heading traction control operation of differential locomotives of a heavy haul combined train or multi-heading operation of different railway locomotives. Also provided is a multi-heading locomotive.

Classes IPC  ?

• B61L 15/00 - Indicateurs de signalisation sur le véhicule ou sur le train
• B61L 27/00 - Systèmes centraux de commande du trafic ferroviaireCommande côté voieSystèmes de communication spécialement adaptés à cet effet
• B61C 17/00 - Aménagement ou disposition des élémentsDétails ou accessoires non prévus ailleursUtilisation de mécanismes ou de systèmes de commande