Abrégé

Disclosed is a contaminated site sampling robot and an intelligent sampling method thereof. The robot includes a body with a walking mechanism, vision sensing system, drilling mechanism, and negative-pressure suction mechanism. The walking mechanism features two servo motors within a mounting platform, with track wheels attached to the servo motors' output ends. The vision sensing system comprises a supporting frame at one end of the mounting platform, equipped with a vision sensing camera and radar sensor. The drilling mechanism consists of a U-shaped base on the mounting platform's top, with a mechanical arm and drilling machine mounted at one end. The negative-pressure suction mechanism includes a U-shaped box on the mounting platform's middle part, housing a vacuum cleaner whose dust outlet connects to a sample collecting box. This setup allows for optimal path identification, positioning, obstacle avoidance, and control of sampling conditions, facilitating intelligent sampling of contaminated sites.

Classes IPC  ?

• G01N 33/24 - Matériaux de la terre
• G01N 1/08 - Dispositifs pour prélever des échantillons à l'état solide, p. ex. par coupe à l'outil impliquant un outil d'extraction, p. ex. mèche cylindrique creuse ou trépan
• G05D 1/689 - Interaction avec des charges utiles ou des entités externes dirigeant des charges utiles vers des cibles fixes ou en mouvement
• G05D 105/80 - Applications spécifiques des véhicules commandés pour la collecte d’informations, p. ex. recherche universitaire

Abrégé

nnn (m)nn (m)nn sub-periods (I); on the basis of (I), obtaining spatial filters (II) of m-th sub-bands; integrating the spatial filters (II) to obtain an integrated spatial filter (III); averaging (IV) to obtain (V); copying and connecting a plurality of (V), and performing synthesis to obtain a steady-state visual evoked potential template signal (VI) having a required length; and identifying an unknown steady-state visual evoked potential K by means of the integrated spatial filter (III) and the steady-state visual evoked potential template signal (VI).

Classes IPC  ?

• G06F 18/20 - Analyse

Abrégé

The present disclosure relates to the technical field of optimization of charging facilities, and in particular, to a day-ahead coordinated optimization scheduling method for a truck mobile charging station. The method includes: constructing an optimization scheduling model framework, wherein the optimization scheduling model framework includes: an EV charging demand generation model and a TMCS spatial-temporal model, the EV model is used to determine the position and time of the TMCS charging demand, and the TMCS scheduling model is used to describe the spatial-temporal dynamic characteristics of TMCS operation and complete the coordinated optimization scheduling of TMCS between EV charging service and energy arbitrage; capturing a charging decision process of heterogeneous EV users by adopting MCS and a multinomial Logit model; establishing an extended graph model to describe the spatial-temporal dynamic characteristics of TMCS; and then expressing the coordinated scheduling model as a mixed integer linear programming model.

Classes IPC  ?

• G06Q 10/1093 - Ordonnancement basé sur un agenda pour des personnes ou des groupes
• B60L 53/57 - Stations de charge sans raccordement aux réseaux électriques
• B60L 53/62 - Surveillance et commande des stations de charge en réponse à des paramètres de charge, p. ex. courant, tension ou charge électrique
• G06Q 30/0202 - Prédictions ou prévisions du marché pour les activités commerciales
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif

Abrégé

A star-like micromolecular cross-linked hole transport material, and a preparation method therefor and the use thereof. Vinyl is introduced into a star-like micromolecular compound to make same be able to undergo a polymerization reaction so as to form a three-dimensional cross-linked network polymer having good stability and solvent resistance; therefore, the problem of deterioration in hole transport performance caused by a micromolecular hole transport material being prone to crystallization is solved, the problem of interlayer mutual dissolution during the process of preparing a photoelectric device by means of a solution method is also effectively solved, the selections of a luminescent layer material and a solvent are more diversified, and a device has better stability. The star-like micromolecular cross-linked hole transport material has a proper HOMO energy level, relatively high hole mobility and a relatively high triplet state energy level, and has good prospects in photoelectric devices, especially in organic photoluminescent devices.

Classes IPC  ?

• C07C 217/92 - Composés contenant des groupes amino et hydroxy éthérifiés liés au même squelette carboné ayant des groupes amino et des groupes hydroxy éthérifiés liés à des atomes de carbone de cycles aromatiques à six chaînons du même squelette carboné ayant des groupes amino et des groupes hydroxy éthérifiés liés à des atomes de carbone de cycles aromatiques à six chaînons non condensés du même cycle aromatique à six chaînons non condensé l'atome d'azote d'au moins un des groupes amino étant lié de plus à un atome de carbone d'un cycle aromatique à six chaînons
• C07C 211/55 - Diphénylamines
• C07D 209/86 - CarbazolesCarbazoles hydrogénés avec uniquement des atomes d'hydrogène, des radicaux hydrocarbonés ou des radicaux hydrocarbonés substitués, liés directement aux atomes de carbone du système cyclique
• C07D 219/02 - Composés hétérocycliques contenant les systèmes cycliques de l'acridine ou de l'acridine hydrogénée avec uniquement des atomes d'hydrogène, des radicaux hydrocarbonés ou des radicaux hydrocarbonés substitués, liés directement aux atomes de carbone du système cyclique
• C07D 265/38 - Oxazines-1, 4Oxazines-1, 4 hydrogénées condensés avec des carbocycles condensés en [b, e] avec deux cycles à six chaînons
• C07D 279/22 - Thiazines-1, 4Thiazines-1, 4 hydrogénées condensés avec des carbocycles ou avec des systèmes carbocycliques condensés en [b, e] avec deux cycles à six chaînons avec des atomes de carbone liés directement à l'atome d'azote du cycle
• H10K 85/60 - Composés organiques à faible poids moléculaire
• H10K 50/15 - Couches de transport de trous

Abrégé

The invention discloses a control method and system for improving a transient stability area of a grid-connected inverter. It includes performing park coordinate transformation on a three-phase voltage and a three-phase output current of a connection point of a grid-connected inverter to obtain an actual voltage input value and an actual current input value required for current control; obtaining the grid-connected voltage phase through phase-locked loop processing; generating, by the power control module, the current command value required by the current control module; using the sliding mode current control method, by the current control module, to generate a dq voltage signal, and obtaining PWM modulated voltage control signals through inverse park transformation; using a LCL filter to filter out high-order harmonics to achieve grid-connected control. The present invention effectively improves the transient stability of the grid-connected inverter by using the sliding mode control method in the current controller.

Classes IPC  ?

• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
• H02J 3/18 - Dispositions pour réglage, élimination ou compensation de puissance réactive dans les réseaux

Abrégé

The present disclosure provides a copper-magnesium co-doped carbonized wood sponge material, a preparation therefor, and an application thereof, and a method for converting plastics into fuel based on a Fenton-like system. In the present disclosure, a copper-magnesium co-doped carbonized wood sponge catalyst is prepared by high-temperature pyrolysis after a wood raw material is coated with polydopamine (PDA) and a copper element and a magnesium element are loaded on a wood sponge substrate, realizing the loading of a nanoreactor on a wood sponge layered structure, and forming a unique spatial microenvironment and synergistic effect by combining a superior three-dimensional lamellar structure of the wood sponge substrate with the structural advantages of the nanoreactor to promote an electron transfer pathway on a surface.

Classes IPC  ?

• B01J 23/78 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe du cuivre ou des métaux du groupe du fer en combinaison avec des métaux, oxydes ou hydroxydes prévus dans les groupes avec des métaux alcalins ou alcalino-terreux ou du béryllium
• B01J 21/18 - Carbone
• B01J 35/56 - Structures foraminées ayant des passages ou des canaux traversants, p. ex. monolithes tridimensionnels ou grilles
• B01J 37/02 - Imprégnation, revêtement ou précipitation
• B01J 37/08 - Traitement thermique
• C10L 5/14 - Procédés de fabrication de briquettes avec l'aide de liants, p. ex. des liants prétraités avec des liants organiques

Abrégé

A high-strength, high-toughness, and corrosion-resistant welding method for TKY nodes in a deepwater jacket includes the following steps: preheating T/K/Y nodes at a predetermined temperature according to a wall thickness of a base material; setting different welding parameters for different welding processes; and performing rooting weld on the preheated T/K/Y nodes through an electrode arc welding process, then performing filling weld through a gas metal arc welding process, and finally performing capping weld through the gas metal arc welding process. A corresponding electrode is selected for the rooting weld, a welding wire is selected for the capping weld according to low-strength matching, a welding wire is selected for the filling weld according to an equal-strength matching principle, and diffusible hydrogen contents of any electrode and any of the welding wires are all less than or equal to a predetermined diffusible hydrogen content.

Classes IPC  ?

• B23K 9/00 - Soudage ou découpage à l'arc
• B23K 9/10 - Autres circuits électriques pour le soudage ou le découpage à l'arcCircuits de protectionCommande à distance
• B23K 9/173 - Soudage ou découpage à l'arc utilisant des gaz de protection et une électrode consommable

Abrégé

A metal-integrated suspended line includes multiple metal substrates stacked from top to bottom and connected by rivets or screws to form a self-encapsulating structure. At least two of the metal substrates except a top metal substrate and a bottom metal substrate are spaced apart from each other, and each of the at least two metal substrates defines an air-filled hollow cavity. One of the metals substrates disposed between hollow cavities of the two metal substrates is provided with a circuit structure. The metal-integrated suspended line can give full play to advantages of all-metal-integrated suspended line platform, and achieve the circuit structure with high Q value, good electromagnetic shielding and excellent heat dissipation performance; meanwhile, a slotline structure can be designed by etching slots on the metal substrate disposed between the two hollow cavities of two of the at least two metal substrates.

Classes IPC  ?

• H05K 1/02 - Circuits imprimés Détails
• H01P 1/202 - Filtres coaxiaux
• H01P 3/12 - Guides d'ondes creux

Abrégé

Provided in the present disclosure are a system and method for measuring the volume fraction of soot in a flame on the basis of single-pixel imaging. The system comprises: an LED collimating light source; a spatial light modulator, which modulates a light signal generated by the LED collimating light source; a burner, which is configured for producing a flame; an imaging unit, which focuses and projects an image light beam; an optical screen, which images and reflects the image light beam that has passed through the position where the flame is located; a single-pixel detector, which is configured for respectively receiving a first luminous intensity detection signal and a second luminous intensity detection signal in the presence and absence of the flame; and a computer, which is configured for performing Fourier transform on the first luminous intensity detection signal and the second luminous intensity detection signal so as to respectively obtain a first Fourier transform spectrum and a second Fourier transform spectrum, performing two-dimensional inverse discrete Fourier transform on the first Fourier transform spectrum and the second Fourier transform spectrum to respectively obtain a first image and a second image, calculating the transmissivity on the basis of the luminous intensities of the first and second images according to RDG-PFA theory, then using a deconvolution method to obtain a local light extinction coefficient, and calculating the local volume fraction of soot.

Classes IPC  ?

• G01N 21/59 - Transmissivité

Abrégé

Disclosed is a pre-combustion chamber igniter, a methanol engine and a cold start control method thereof. The pre-combustion chamber igniter includes a housing, nozzles, a fuel injector, a spark plug and heating elements. The heating elements at outer surfaces of the nozzles can heat fuel spray sprayed to an inner wall of a pre-combustion chamber. According to the present disclosure, the pre-combustion chamber is heated using the heating elements during a cold start of the methanol engine, and an excess air coefficient of an interior of the pre-combustion chamber can be controlled between 0.8 and 1.0 to achieve ultra-lean combustion of the engine in a cold start state.

Classes IPC  ?

• F02B 19/10 - Moteurs caractérisés par des chambres de précombustion avec introduction partielle du combustible dans la chambre de précombustion et introduction partielle dans le cylindre
• F02B 19/12 - Moteurs caractérisés par des chambres de précombustion avec allumage commandé

Abrégé

A performance test bench device for a centrifugal compressor under a variable working condition of an engine is composed of: a turbine back disk temperature simulator and the centrifugal compressor being coaxially arranged, and being sequentially connected with a speed regulator and a driver. Meanwhile, a thermocouple array is arranged on a surface of a simulator back plate. A temperature measurement probe is arranged at an inlet and an outlet of the centrifugal compressor, and a thermocouple array is also arranged on a surface of a cover plate of the centrifugal compressor and a surface of a rotating blade. An airflow passes through the inlet pipeline, the flow meter and the air inlet rectification system, is pressurized by the centrifugal compressor, and is then discharged by the outlet pipeline.

Classes IPC  ?

• F04D 27/00 - Commande, p. ex. régulation, des pompes, des installations ou des systèmes de pompage spécialement adaptés aux fluides compressibles

Abrégé

A speech brain-computer interface neural decoding system based on Chinese language, a method for controlling the speech brain-computer interface neural decoding system, and a method for implementing the speech brain-computer interface neural decoding system are disclosed. The speech brain-computer interface neural decoding system includes an electroencephalography (EEG) data acquisition module, a significance feature screening and verification module, a speech imagery EEG data decoding module, and an understandable speech synthesis module. The speech brain-computer interface neural decoding system integrates EEG data collection, EEG feature extraction, EEG feature screening, EEG signal decoding for reconstructing speech spectrum information and understandable speech synthesis. After obtaining reconstructed spectrogram features, a Pearson correlation analysis may be performed with original spectrogram features, with a correlation generally being ≥80%. The decoding performance of the speech brain-computer interface neural decoding system is superior to traditional decoding models, effectively improving communication between patients with speech disorders and the outside world.

Classes IPC  ?

• G10L 15/18 - Classement ou recherche de la parole utilisant une modélisation du langage naturel
• G10L 13/027 - Synthétiseurs de parole à partir de conceptsGénération de phrases naturelles à partir de concepts automatisés
• G10L 13/047 - Architecture des synthétiseurs de parole
• G10L 15/06 - Création de gabarits de référenceEntraînement des systèmes de reconnaissance de la parole, p. ex. adaptation aux caractéristiques de la voix du locuteur
• G10L 15/16 - Classement ou recherche de la parole utilisant des réseaux neuronaux artificiels
• G10L 15/24 - Reconnaissance de la parole utilisant des caractéristiques non acoustiques
• G10L 25/18 - Techniques d'analyse de la parole ou de la voix qui ne se limitent pas à un seul des groupes caractérisées par le type de paramètres extraits les paramètres extraits étant l’information spectrale de chaque sous-bande

Abrégé

A detection device includes a frame body and a main pipe positioning assembly, a branch pipe positioning assembly, and a first driving assembly disposed on the frame body. One side of the frame body is provided with an opening. The branch pipe positioning assembly is disposed inside the opening. The first driving assembly adjusts the branch pipe positioning assembly, so that the branch pipe positioning assembly is adapted to positions of the two branch pipes. During detection, the branch pipes are located in the opening, the main pipe positioning assembly connects two ends of the main pipe, and the branch pipe positioning assembly connects the two branch pipes. Two limiting members are slidably disposed on the frame body to open and close the opening, and the limiting members abut against an outer wall of the main pipe, such that the main pipe is located inside or outside the opening.

Classes IPC  ?

• G01N 3/36 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts répétés ou pulsatoires engendrés par des moyens pneumatiques ou hydrauliques

Abrégé

i; determining whether a relocation process is completed by motion steps.

Classes IPC  ?

• H04N 23/60 - Commande des caméras ou des modules de caméras
• G06T 7/62 - Analyse des attributs géométriques de la superficie, du périmètre, du diamètre ou du volume
• G06T 7/73 - Détermination de la position ou de l'orientation des objets ou des caméras utilisant des procédés basés sur les caractéristiques
• G06T 7/80 - Analyse des images capturées pour déterminer les paramètres de caméra intrinsèques ou extrinsèques, c.-à-d. étalonnage de caméra
• H04N 23/695 - Commande de la direction de la caméra pour modifier le champ de vision, p. ex. par un panoramique, une inclinaison ou en fonction du suivi des objets

Abrégé

The present disclosure provides a drain-gate voltage excitation and source-drain current acquisition system and method for gas-sensitive organic field effect transistors (OFETs). The system includes an acquisition device and a gas-sensitive OFET array. The device includes a microcontroller module, a power supply management module, a voltage excitation module, a voltage regulation module, a transimpedance amplifier (TIA) module, a fully-differential low-side current detection module, a voltage acquisition module, a signal transmission module and an array switching module. In the present disclosure, the real-time monitoring of various harmful gases and the performance testing of the gas-sensitive OFETs are realized. The device has two current detection modes, thereby not only stabilizing drain electric potentials, but also enabling drain-source currents to be measured with sufficient accuracy.

Classes IPC  ?

• G01N 27/12 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant l'impédance en recherchant la résistance d'un corps solide dépendant de l'absorption d'un fluideRecherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant l'impédance en recherchant la résistance d'un corps solide dépendant de la réaction avec un fluide
• G01N 27/414 - Transistors à effet de champ sensibles aux ions ou chimiques, c.-à-d. ISFETS ou CHEMFETS
• G01N 33/00 - Recherche ou analyse des matériaux par des méthodes spécifiques non couvertes par les groupes
• H03K 17/687 - Commutation ou ouverture de porte électronique, c.-à-d. par d'autres moyens que la fermeture et l'ouverture de contacts caractérisée par l'utilisation de composants spécifiés par l'utilisation, comme éléments actifs, de dispositifs à semi-conducteurs les dispositifs étant des transistors à effet de champ

Abrégé

A simplified method for welding a 5G position filler layer of a marine riser and a product thereof are provided, and the disclosure belongs to the technical field of welding. The method specifically includes the following. performing filler welding on the marine riser using an oscillation scanning laser-GMAW hybrid welding process; performing welding on each layer using same process parameters, then reducing gravity of a molten pool and increasing an arc force through interaction between laser and an arc, meanwhile expanding a range of a welding molten pool through an oscillation scanning behavior of the laser beam. A lack-of-fusion defect is prevented from being generated. A 5G position filler layer welding process of the marine riser is effectively simplified in the disclosure. Further, laser beam scanning also expands the range of the welding molten pool and prevents generation of the lack-of-fusion defect on a side wall.

Classes IPC  ?

• B23K 28/02 - Procédés ou appareils combinés pour le soudage ou le découpage
• B23K 9/173 - Soudage ou découpage à l'arc utilisant des gaz de protection et une électrode consommable
• B23K 26/082 - Systèmes de balayage, c.-à-d. des dispositifs comportant un mouvement relatif entre le faisceau laser et la tête du laser
• B23K 101/10 - Pipe-lines

Abrégé

A welding method for improving quality of 5G all-position welding of a marine riser and a product thereof are provided, and the disclosure belongs to the technical field of welding. The welding method specifically includes the following. welding the marine riser in 5G all positions using a unified welding mode; reducing a predetermined voltage or reducing predetermined inductance in an overhead welding position to improve directivity and stability of an arc; and meanwhile increasing an arc swing width in the overhead welding position to eliminate a lack-of-fusion defect. In the disclosure, a unified welding mode suitable for flat welding is applied to marine riser welding. The process of 5G all-position welding of the marine riser is effectively simplified. The welding quality of 5G all-position welding of the marine riser is thereby effectively improved.

Classes IPC  ?

• B23K 31/02 - Procédés relevant de la présente sous-classe, spécialement adaptés à des objets ou des buts particuliers, mais non couverts par un seul des groupes principaux relatifs au brasage ou au soudage
• B23K 37/00 - Dispositifs ou procédés auxiliaires non spécialement adaptés à un procédé couvert par un seul des autres groupes principaux de la présente sous-classe

Abrégé

The application provides a preparation method and use of a diatom-bacterium symbiotic organic liquid fertilizer, and belongs to the technical field of biological fertilizers. The preparation method of the diatom-bacterium symbiotic organic liquid fertilizer includes the following steps: (1) mixing a compound bacterial powder with a waste liquid organic matter to allow first fermentation to obtain a small-molecule organic liquid fertilizer; (2) mixing diatom with the small-molecule organic liquid fertilizer to allow second fermentation to obtain a bio-organic fertilizer; and (3) mixing a microbial inoculant with the bio-organic fertilizer to allow third fermentation to obtain the diatom-bacterium symbiotic organic liquid fertilizer. In the application, the diatom-bacterium symbiotic organic liquid fertilizer prepared by the preparation method is used for soil improvement. The organic liquid fertilizer can not only effectively improve soil, enhance fertilizer utilization, and increase crop yield and quality, but also can achieve resource utilization of waste.

Classes IPC  ?

• C05F 17/20 - Emploi de microorganismes ou de substances, p. ex. d'enzymes, pour activer ou stimuler le traitement
• C05F 3/00 - Engrais fabriqués à partir des excréments humains ou animaux, y compris le fumier
• C05F 5/00 - Engrais fabriqués à partir de déchets de distillerie ou de sucreries, de mélasses, vinasses ou de déchets ou résidus similaires
• C05F 17/40 - Traitement des liquides ou des boues
• C05F 17/50 - Procédés combinant au moins deux traitements différents biologiques ou biochimiques, p. ex. des traitements anaérobie et aérobie ou lombricompostage et traitement aérobie
• C05G 5/20 - Engrais liquides

Abrégé

A method for determining the filling welding parameters of large deformation pipeline steel based on secondary regulation method includes: welding specimens to be welded for secondary welding thermal simulation experiments based on a thermal simulation to obtain samples after thermal simulation; processing the samples after thermal simulation into CTOD samples and calculating fracture toughness parameters; pre-loading of specimens requiring pre-strain after thermal simulation by uniaxial tension, and then processing samples before and after pre-strain after thermal simulation, conducting slow strain rate tension tests and calculating stress corrosion cracking susceptibility parameters; comparing the change in elongation of the samples before and after pre-strain and calculating the pre-strain sensitivity parameters; determining secondary thermal simulation parameters; converting the secondary thermal simulation parameters into welding heat input parameters; determining welding parameters based on welding heat input parameters; determining the optimal role of the welding parameters.

Classes IPC  ?

• B23K 31/12 - Procédés relevant de la présente sous-classe, spécialement adaptés à des objets ou des buts particuliers, mais non couverts par un seul des groupes principaux relatifs à la recherche des propriétés, p. ex. de soudabilité, des matériaux
• G01N 3/08 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique par application d'efforts permanents de traction ou de compression
• G01N 33/207 - Soudures ou brasuresSoudabilité

Abrégé

The disclosure for a four-degree-of-freedom parallel robot for postoperative rehabilitation of ankle joint fracture, includes a base, a rotary platform, a pedal adjusting device, a foot pedal and a detachable branched chain; the base and the rotary platform are rotationally connected through bearings to form a revolute pair, and the rotary platform is driven by a driver fixed to the base; three drive branched chains with the same structures are evenly distributed between the rotary platform and the pedal adjusting device; the pedal adjusting device is fixedly connected with the foot pedal. On the basis of the present disclosure, an anatomic model better matching with a physiological structure of an ankle joint complex replaces an oversimplified spherical hinge model, the two axes that do not intersect spatially can rotate and be switched with each other, and therefore the present disclosure meets the requirements of ankle fracture rehabilitation training.

Classes IPC  ?

• A61H 1/02 - Appareils d'exercice extenseurs ou de ployage

Abrégé

Disclosed is a three-degree-of-freedom parallel mechanism, a parallel robot and a machine tool. The parallel mechanism includes a fixed frame and a moving platform, and the fixed frame includes a fixed seat and a cylindrical body fixedly connected to the fixed seat; three identical limbs are uniformly distributed in the cylindrical body in a circumferential direction, and each limb includes a prismatic joint A, a hinge A, a swing arm, a hinge B and a hinge C which are sequentially connected; an axis of the hinge A is perpendicular to an axis of movement of the prismatic joint A; an axis of the hinge B is perpendicular to, but does not intersect with the axis of the hinge A, which rotates around the axis of the hinge A; the hinge C has two rotational degrees of freedom.

Classes IPC  ?

• B25J 9/00 - Manipulateurs à commande programmée
• B25J 9/14 - Manipulateurs à commande programmée caractérisés par des moyens pour régler la position des éléments manipulateurs à fluide

Abrégé

Biomimetic nacre-toughness cement slurry based on in-situ polymerization of a fluid loss additive, a preparation method and an application thereof are provided. The preparation method includes: dissolving 2-acrylamido-2-methylpropane sulfonic acid monomer and carboxylic acid monomer in deionized water, adjusting pH to 5.5-6.5, then adding an acrylamide monomer, and uniformly stirring to obtain a monomer solution; adding an initiator and a catalyst into the monomer solution, and then stirring to obtain a pre-polymerization solution; adding cement particles into the pre-polymerization solution under low-speed stirring, and then performing high-speed stirring to obtain the biomimetic nacre-toughness cement slurry. The obtained cement slurry can optimize a microstructure of cement while possessing a well capacity for controlling fluid loss, improve deformation ability and toughness of a cement sheath, and effectively improve brittleness defect of the cement sheath.

Classes IPC  ?

• C09K 8/487 - Additifs régulant les pertes de fluideAdditifs pour réduire ou empêcher la perte de circulation
• C04B 24/16 - Composés contenant du soufre
• E21B 21/00 - Procédés ou appareils pour nettoyer les trous de forage par jet de fluide, p. ex. en utilisant l'air d'échappement du moteur
• E21B 33/138 - Plâtrage de la paroi du trou de forageInjections dans la formation
• C04B 103/00 - Fonctions ou propriétés de l'ingrédient actif
• C04B 103/46 - Réducteurs de la perte d'eau, agents hygroscopiques ou hydrophiles

Abrégé

The invention pertains to optimal scheduling and trading technology for microgrid systems, specifically focusing on a real-time peer-to-peer energy trading method involving time-varying virtual energy storage. This method predicts environmental information within a specified time domain and incorporates historical transaction data into virtual energy storage modeling and real-time energy trading. During the supply and demand energy extraction phase, it quantitatively extracts supply and demand energy and the marginal cost for trading using an autonomous energy management model for prosumers. In the transaction price optimization phase, it optimizes the transaction price based on historical data to maximize prosumers' income. The distributed transaction decision optimization method, utilizing a continuous double auction, enhances transaction matching decisions to maximize prosumers' income and accommodate multi-transaction preference levels. This approach leverages the complementary potential of energy resources to balance supply and demand within the system.

Classes IPC  ?

• G06Q 40/04 - TransactionsOpérations boursières, p. ex. actions, marchandises, produits dérivés ou change de devises
• G06Q 50/06 - Fourniture d’énergie ou d’eau

Abrégé

The present disclosure discloses a harmonic reducer with conjugate cycloidal profiles, including a circular spline, a flexspline, a wave generator and a flexible bearing. A profile of the circular spline and a profile of the flexspline are conjugate cycloidal profiles. The profile of the circular spline and the profile of the flexspline are formed by hypocycloids and epicycloids formed by two rolling circles around a pitch circle of the circular spline and a pitch circle of the flexspline under an engaging state respectively. A sum of radii of the first rolling circle and the second rolling circle is equal to a difference between radii of the pitch circle of the circular spline and the pitch circle of the flexspline under the engaging state. The wave generator is a biarc cam wave generator, a cam curve is an arc within an angle of contact in the long axis direction.

Classes IPC  ?

• F16H 49/00 - Autres transmissions
• F16H 55/08 - Profilage

Abrégé

Disclosed is a method for cooperative decision-making on lane-changing behavior of an autonomous vehicle based on Bayesian game. On one hand, intelligent networked road perception and big data analysis are utilized to infer statistical characteristics of driving styles of a side vehicle under different time periods and traffic flow states, serving as prior predictions of driving styles of the side vehicle. On the other hand, the dynamic interaction behaviors during lane-changing processes of a specified vehicle and the side vehicle are continuously observed and posterior corrections are made to the driving styles of the side vehicle. When the specified vehicle generates a lane-changing willingness, probabilities of driving styles are iteratively predicted using Bayesian game principles. Comprehensive consideration of style and willingness probabilities yields a lane-changing probability of the specified vehicle. Once the lane-changing probability exceeds a threshold, a lane-changing activation instruction is issued.

Classes IPC  ?

• B60W 60/00 - Systèmes d’aide à la conduite spécialement adaptés aux véhicules routiers autonomes
• B60W 50/00 - Détails des systèmes d'aide à la conduite des véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier

Abrégé

A cylinder gas recirculation system device of an internal combustion engine based on pressure differential driving is provided, the overall device includes a recirculation intake and exhaust system and a gas storage system. An intake control valve on a cylinder block, a surge tank, and an exhaust control valve on the cylinder block are sequentially connected to form a gas recirculation subsystem of the cylinder block of the internal combustion engine. Two adjacent subsystems are in communication through an intake pipe. Positions of intake and exhaust pipelines may be anywhere between the top and bottom dead centers of a piston in a cylinder, and intake and exhaust valves of the gas recirculation may share the same valve. Different valves may also be used, and the intake and exhaust pipelines of the gas recirculation are arranged on the same side of the cylinder in double layers.

Classes IPC  ?

• F02M 26/23 - Disposition, p. ex. schémas
• F02B 25/26 - Moteurs polycylindriques autres que ceux couverts par les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F02M 26/16 - Aménagement ou disposition des passages RGE, p. ex. par rapport à des pièces spécifiques du moteur ou pour l’incorporation d’accessoires par rapport au système d’échappement avec des soupapes RGE situées au raccordement ou près du raccordement au système d’échappement
• F02M 26/34 - Aménagement ou disposition des passages RGE, p. ex. par rapport à des pièces spécifiques du moteur ou pour l’incorporation d’accessoires avec des compresseurs, des turbines ou des moyens analogues dans le passage de recirculation

Abrégé

The present disclosure discloses a cross-modal image-watermark joint generation and detection device and method thereof. The device includes a multimodal encoder, an image-watermark feature co-embedding module, an image-watermark feature fusion module, an up-sampling generator, a non-cooperative game decoupling module configured to decouple an unwatermarked image and a reconstructed watermark from a composite image through two decoders by developing allocation strategies according to a non-cooperative game theory and a Shannon information theory; a strategy allocation module configured to set an composite image discriminator, keeping the consistency between the composite image and input text by multi-specification down-sampling convolution kernels and set the objective functions to constrain watermark reconstruction and unwatermarked image decoding; and a post-processing attack module configured to simulate various attacks for ensuring the robustness of watermarks.

Classes IPC  ?

• G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
• G06T 1/00 - Traitement de données d'image, d'application générale
• G06T 7/00 - Analyse d'image
• G06T 11/00 - Génération d'images bidimensionnelles [2D]

Abrégé

The present disclosure provides a technology field of caking of crystal particles, and in particular relates to a method for predicting a critical caking cycle of crystal particle. The method includes: establishing a CHS crystal bridge growth model database of a crystal particle with a same type of crystal particle to be predicted firstly, selecting existed data in the corresponding CHS crystal bridge growth model database based on an equivalent particle radius, a stored ambient temperature, and an environmental high and low humidity cycle condition of the crystal particle to be predicted, respectively, and calculating the critical caking cycle according to experience calculation equations, wherein a result obtained by calculation is a predicted critical caking cycle of the crystal particle to be predicted. The present disclosure has characteristics of time-saving, convenience, good universality, and high prediction accuracy, which can quickly predict the critical caking cycle of multi-particle crystal particle products under different humidity storage conditions within a week, resulting in greatly reducing time costs and providing guidance for storage of industrial crystal particle products.

Classes IPC  ?

• G01N 15/06 - Recherche de la concentration des suspensions de particules

Abrégé

A three-dimensional brain organoid culture method based on low-intensity ultrasound stimulation. The method comprises: first, culturing a brain organoid; and then intervening the development of the brain organoid by means of low-intensity ultrasound. The optimization effect of the low-intensity ultrasound on the structure of the brain organoid throughout the development period is analyzed, and the effect of low-intensity ultrasound stimulation on the culture of a microcephaly brain organoid with knocked-out human abnormal spindle-like microcephaly-associated protein (ASPM) genes is studied. It is found for the first time that the low-intensity ultrasound stimulation can optimize brain organoid development, providing a reliable and effective in-vitro research model for the process of researching nervous system development, and providing a new way for researching the treatment for diseases related to neurodevelopment such as microcephaly.

Classes IPC  ?

• C12N 5/10 - Cellules modifiées par l'introduction de matériel génétique étranger, p. ex. cellules transformées par des virus
• C12N 15/12 - Gènes codant pour des protéines animales

Abrégé

3), a high calorific value (41.14 MJ/L), and a low freezing point (less than −60° C.).

Classes IPC  ?

• C07C 13/68 - Hydrocarbures polycycliques ou leurs dérivés hydrocarbonés acycliques à cycles condensés à plus de trois cycles condensés le système cyclique condensé ne contenant que quatre cycles à système cyclique ponté
• C07C 1/207 - Préparation d'hydrocarbures à partir d'un ou plusieurs composés, aucun d'eux n'étant un hydrocarbure à partir de composés organiques ne renfermant que des atomes d'oxygène en tant qu'hétéro-atomes à partir de composés carbonylés
• C07C 45/45 - Préparation de composés comportant des groupes C=O liés uniquement à des atomes de carbone ou d'hydrogènePréparation des chélates de ces composés par condensation
• C07C 49/423 - Composés saturés comportant un groupe cétone faisant partie d'un cycle polycycliques un groupe cétone faisant partie d'un système cyclique condensé

Abrégé

The system includes a dust collector, a pressure controller, a dryer, a gas heat-insulation device, a gas pool, a gas detector, an optical monitor and a computer sequentially connected. The dust collector is used to filter solid particles in a gas. The pressure controller is used to control a flow rate of the gas. The dryer is used to control a humidity of the gas. The gas heat-insulation device is used to control a temperature of the gas. The gas pool is used to carry the gas. The laser is used to irradiate the gas in the gas pool to generate a Raman scattering light. The gas detector is used to collect the Raman scattering light. The optical monitor is used to adjust and amplify a light signal of the Raman scattering light. The computer is used to output a Raman spectrum and a composition and content of a tar.

Classes IPC  ?

• G01N 21/65 - Diffusion de Raman
• G01N 1/34 - PurificationNettoyage
• G01N 21/01 - Dispositions ou appareils pour faciliter la recherche optique

Abrégé

A multi-stage water resource-recycling control system includes a sewage treatment device, a temperature feedback controller, a flow rate feedback controller, a decider, and a feedback controller group; wherein the output end of the sewage treatment device is connected with the input ends of the temperature feedback controller and the flow rate feedback controller, respectively; the output ends of the temperature feedback controller and the flow rate feedback controller are connected with the input end of the decider; the output end of the decider is connected with the input ends of the sewage treatment device and the feedback controller group, respectively; the output end of the feedback controller group is connected with the input end of the sewage treatment device. The objective of the present disclosure is to ensure that the output-water quality reaches the standard.

Classes IPC  ?

• G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques

Abrégé

Provided is a method for disposal of a photocured waste by photooxidation-catalytic pyrolysis coupling. The method includes: subjecting a photocured waste to be disposed to photooxidation, and subjecting a resulting photocured waste after the photooxidation to catalytic pyrolysis; where the photooxidation is conducted by subjecting the photocured waste to be disposed to irradiation with ultraviolet light in air. In the method for disposal of the photocured waste by the photooxidation-catalytic pyrolysis coupling provided by the disclosure, the photocured waste to be disposed is subjected to the photooxidation, and the resulting photocured waste after the photooxidation is subjected to the catalytic pyrolysis.

Classes IPC  ?

• B09B 3/50 - Destruction de déchets solides ou transformation de déchets solides en quelque chose d'utile ou d'inoffensif impliquant un rayonnement, p. ex. des ondes électromagnétiques
• B09B 3/35 - Déchiquetage, écrasement ou découpage
• B09B 101/75 - Déchets plastiques

Abrégé

Embodiments of the present application provide a function caching method and apparatus. The method comprises: a master controller sends first indication information to a first sub-controller among a plurality of sub-controllers, wherein the first indication information is used for determining a caching strategy for an instance on a first computing node in a cluster; the first sub-controller performs instance caching processing on the instance on the first computing node according to the first indication information; the master controller sends second indication information to a second sub-controller among the plurality of sub-controllers, wherein the second indication information is used for determining a caching strategy for an instance on a second computing node in the cluster; and the second sub-controller performs instance caching processing on the instance on the second computing node according to the second indication information. The solution in the embodiments of the present application can avoid the waste of cached resources while reducing the occurrence rate of cold start calling.

Classes IPC  ?

• G06F 9/50 - Allocation de ressources, p. ex. de l'unité centrale de traitement [UCT]

Abrégé

The present disclosure discloses a supported polymetallic oxide tandem catalyst, preparation method and application thereof, a surface of the support is supported with an oxide of metal A and then with metal vanadate nano-particles; and the oxide of metal A serves as a direct dehydrogenation catalytic site, and the metal vanadate nano-particles serve as a selective hydrogen combustion site. In the application of the tandem catalyst, dehydrogenation site and selective hydrogen combustion site are coupled at the nano-scale, and this coupling mechanism shifts the reaction equilibrium to the alkenes through the selective combustion of byproduct hydrogen, which effectively surpasses the thermodynamic limit; and meanwhile, the combustion of hydrogen releases chemical energy, and provides heat energy through direct heating, enabling the self-heating operation of the reaction. The present disclosure has the outstanding advantages of high single-pass conversion rate of light alkanes and high selectivity towards target product alkenes.

Classes IPC  ?

• B01J 37/02 - Imprégnation, revêtement ou précipitation
• B01J 21/04 - Alumine
• B01J 21/06 - Silicium, titane, zirconium ou hafniumLeurs oxydes ou hydroxydes
• B01J 21/08 - Silice
• B01J 23/06 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe du zinc, du cadmium ou du mercure
• B01J 23/08 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe du gallium, de l'indium ou du thallium
• B01J 23/22 - Vanadium
• B01J 23/26 - Chrome
• B01J 23/34 - Manganèse
• B01J 23/847 - Vanadium, niobium ou tantale
• B01J 29/076 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes contenant de l'arsenic, de l'antimoine, du bismuth, du vanadium, du niobium, du tantale, du polonium, du chrome, du molybdène, du tungstène, du manganèse, du technétium ou du rhénium
• B01J 37/00 - Procédés de préparation des catalyseurs, en généralProcédés d'activation des catalyseurs, en général
• B01J 37/08 - Traitement thermique
• C07C 5/32 - Préparation d'hydrocarbures à partir d'hydrocarbures contenant le même nombre d'atomes de carbone par déshydrogénation avec formation d'hydrogène libre

Abrégé

A plant-based electrochemical device for ecological restoration of a polluted river or lake and a using method thereof are provided. The plant-based electrochemical device includes a sediment, where a plurality of first electrodes are provided in the sediment, the plurality of first electrodes each include a plurality of staggered cylinders, an outer side of each of the plurality of cylinders is provided with an electrically-conductive layer, and the electrically-conductive layer is electrically connected to an external power supply; a plurality of upright posts are symmetrically fixed in the sediment, the plurality of upright posts are fixedly connected to a second electrode through a fixing mechanism, and the second electrode is located at a water surface and is electrically connected to the external power supply; and a plurality of ecological landscape floating islands are provided on the water surface.

Classes IPC  ?

• H01M 8/16 - Éléments à combustible biochimique, c.-à-d. éléments dans lesquels des micro-organismes agissent comme catalyseurs
• C02F 3/00 - Traitement biologique de l'eau, des eaux résiduaires ou des eaux d'égout
• C02F 3/32 - Traitement biologique de l'eau, des eaux résiduaires ou des eaux d'égout caractérisé par les animaux ou végétaux utilisés, p. ex. les algues
• C02F 103/00 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter
• H01M 4/96 - Électrodes à base de carbone

Abrégé

Provided is a manufacturing method of a dielectric waveguide radio-frequency device, which relates to a manufacturing method of waveguide radio-frequency devices. The object of the present disclosure is to solve the issues of high costs, low processing efficiency, poor dimensional accuracy, poor surface quality, low device performance and inability to manufacture the ceramic waveguide radio-frequency devices in huge batches in the existing manufacturing method of the ceramic waveguide radio-frequency devices. The method includes: I. sectioning, II. slotting, III. processing tuning hole, IV. processing energy input hole, V. adhesive coating, stacking, VI. bonding, and VII. entire metallization, so as to obtain the dielectric waveguide radio-frequency device. In the present disclosure, more complex and diverse device topology structures can be manufactured, reducing the device manufacturing difficulty, and improving the accuracy allowance.

Classes IPC  ?

• H01P 11/00 - Appareils ou procédés spécialement adaptés à la fabrication de guides d'ondes, résonateurs, lignes ou autres dispositifs du type guide d'ondes

Abrégé

Disclosed in the present invention are an esterase mutant having polyester degradation activity and the use thereof. The esterase mutant is one of the following: an esterase A as shown in SEQ ID NO.3, of which the glutamic acid at the 177th site is mutated into glutamine, or the asparagine at the 178th site is mutated into alanine, or the serine at the 180th site is mutated into threonine, leucine and valine; or the isoleucine at the 181st site is mutated into valine, etc. Experiments show that a protein expressed by the gene of the esterase mutant of the present invention can be correctly folded and can be purified in a large quantity in an escherichia coli system. In addition, the esterase mutant of the present invention has a function of degrading polyesters, and the thermal stability and the catalytic efficiency of the protein expressed by the gene of the esterase mutant are remarkably improved than those of a wild-type esterase. The esterase mutant of the present invention achieves polyester degrading activity in all the pH range of 4-11. The esterase mutant of the present invention has activity and is stable at 37-70℃.

Classes IPC  ?

• C12N 9/16 - Hydrolases (3.) agissant sur les liaisons esters (3.1)
• C12N 15/55 - Hydrolases (3)
• C12P 7/44 - Acides polycarboxyliques
• C12R 1/21 - Haemophilus

Abrégé

The present invention provides a method and a system for preparing fuel using high-acid-value biological grease, which can be processed through triple deoxidization steps, i.e., thermal cracking deoxygenation-catalytic cracking deoxygenation-catalytic hydrodeoxygenation. By use of the method and system of the invention, the raw material of the high-acid-value biological grease can be gradually deoxidized to reduce the acid value and thereby prepare a clean fuel with equivalent fuel components as those obtained from crude oil refining or direct hydrodeoxygenation for biological grease.

Classes IPC  ?

• C10L 1/02 - Combustibles carbonés liquides à base essentielle de composants formés uniquement de carbone, d'hydrogène et d'oxygène
• B01D 3/00 - Distillation ou procédés d'échange apparentés dans lesquels des liquides sont en contact avec des milieux gazeux, p. ex. extraction
• B01D 3/10 - Distillation sous vide
• B01J 19/24 - Réacteurs fixes sans élément interne mobile
• C10G 3/00 - Production de mélanges liquides d'hydrocarbures à partir de matières organiques contenant de l'oxygène, p. ex. huiles, acides gras
• C10L 1/08 - Combustibles carbonés liquides à base essentielle de mélanges d'hydrocarbures pour allumage par compression

Abrégé

A MEMS speaker having a stress relief gap (28), which relates to the field of MEMS speakers, and is used for solving the technical problem of the output sound pressure levels and power sensitivities of MEMS speakers being relatively low. The MEMS speaker comprises a substrate (10) and a diaphragm unit array arranged on the substrate (10), wherein the diaphragm unit array comprises at least two diaphragm units (20) arranged at intervals; each diaphragm unit (20) has a piezoelectric layer (26); the total thickness of the piezoelectric layer (26) is less than or equal to 1 micron; at least one diaphragm unit (20) is provided with a stress relief gap (28); and the stress relief gap (28) at least occupies part of the structure of the diaphragm unit (20) in the thickness direction, and extends along a plane where the diaphragm unit (20) is located. An ultra-thin structure of a MEMS loudspeaker can be realized, the output sound pressure level and the power sensitivity of the MEMS loudspeaker can be improved, and the sound emission efficiency of the MEMS loudspeaker can also be improved. In addition, the reliability and manufacturing consistency of the MEMS loudspeaker can be improved.

Classes IPC  ?

• H04R 19/04 - Microphones

Abrégé

The present disclosure provides a treatment method for oily sludge and a method for soil remediation. The treatment method for oily sludge includes: mixing the oily sludge with target biochar uniformly according to a first preset mass ratio, and conducting catalytic pyrolysis at a first preset temperature to achieve efficient removal of petroleum hydrocarbons, to obtain a pyrolysis residue used for soil remediation. In the present disclosure, the method realizes resource utilization and harmless utilization of the pyrolysis residue.

Classes IPC  ?

• C02F 11/10 - Traitement des boues d'égoutDispositifs à cet effet par pyrolyse
• B09C 1/08 - Régénération de sols pollués par des procédés chimiques
• C02F 101/32 - Hydrocarbures, p. ex. huiles
• C02F 103/36 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes provenant de la fabrication de composés organiques
• C10B 53/02 - Distillation destructive spécialement conçue pour des matières premières solides particulières ou sous forme spéciale de matières contenant de la cellulose

Abrégé

The present disclosure discloses a 2.8 μm and 3.5 μm dual-wavelength mid-infrared fiber laser, which employs “0.98 μm+1.15 μm” pumping scheme, uses a fiber combiner to combine two pump lights into the double cladding Er-doped fluoride fiber. The Er ions in the ground state are first promoted to 4I11/2 level by the 0.98 μm pump light, realizing 2.8 μm lasing based on 4I11/2→4I13/2 transition, and further promoted to 4F9/2 level by the 1.15 μm pump light, generating 3.5 μm lasing based on 4F9/2→4I9/2 transition; followed by the 3.5 μm laser transition, the Er ions would rapidly decay to 4I11/2 level via non radiative transition, realizing the re-population of 4I11/2 level, effectively enlarge the population inversion of 2.8 μm transition, suppressing the self-termination of 2.8 μm lasing and achieving 2.8 μm and 3.5 μm dual-wavelength cascaded lasing output.

Classes IPC  ?

• H01S 3/08 - Structure ou forme des résonateurs optiques ou de leurs composants
• H01S 3/067 - Lasers à fibre optique
• H01S 3/094 - Procédés ou appareils pour l'excitation, p. ex. pompage utilisant le pompage optique par de la lumière cohérente
• H01S 3/16 - Matériaux solides

Abrégé

The disclosure discloses a creep lifetime prediction method for a P92 main steam pipeline welded joint, which includes the following. Based on the minimally invasive sampling technology and the microstructure characterization equipment, the microstructure of the P92 steel welded joint after service is obtained. An area with a most significant degradation of the P92 steel welded joint is determined by performing grading processing on the microstructure of the welded joint. The maximum main stress of the structural component is obtained through the finite element technology and the actual service pressure of the P92 steel welded component. Through the maximum main stress and the microstructure after grading, based on the temperature-related Larson-Miller creep lifetime prediction method, the creep lifetime of the welded joint under the condition is determined.

Classes IPC  ?

• G01N 3/02 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique Parties constitutives
• G01N 33/2045 - Défauts

Abrégé

The present disclosure discloses a heating system coupling a passive phase change energy storage sunlight room with an air source heat pump. The heating system includes a passive phase change energy storage sunlight room (7), phase change heat storage units, a to-be-heated room (8), and an air source heat pump air heater arranged between the passive phase change energy storage sunlight room (7) and the to-be-heated room (8), wherein each phase change heat storage unit (11) consists of a plurality of phase change heat storage modules (1). An opening in the front part of each phase change heat storage module faces an interior of the passive phase change energy storage sunlight room, and the phase change heat storage modules located on the top are spliced transversely, and the vent in the top of each phase change heat storage module is connected with the ventilation port of the room.

Classes IPC  ?

• F24D 15/04 - Autres systèmes de chauffage de locaux domestiques ou d'autres locaux utilisant des pompes à chaleur
• F24D 17/00 - Systèmes domestiques d'alimentation en eau chaude
• F24S 20/61 - Collecteurs de chaleur solaire passifs, p. ex. fonctionnant sans source d’énergie externe
• F24S 60/10 - Agencements pour l’emmagasinage de la chaleur collectée par les collecteurs de chaleur solaire utilisant la chaleur latente

Abrégé

A method for realizing nucleic acid single-molecule fragment-type sequencing on the basis of a γ-hemolysin nanopore contraction region. The method comprises steps of: constructing a nano patch clamp apparatus, arranging solid-state holes between a cis-detection chamber and a trans-detection chamber of an electrolytic cell, and providing a salt solution; attaching a phospholipid layer onto the solid-state holes so as to block the solid-state holes; γ-hemolysin protein forming an octamer structure consisting of a vestibule and a barrel-shaped structure, a linking region thereof being a contraction region; constructing γ-hemolysin nanopores on the phospholipid layer, so as to communicate liquids in the cis-detection chamber and the trans-detection chamber; applying a voltage to obtain an open current; adding a nucleic acid single-molecule aqueous solution to the cis-detection chamber, and applying a voltage to enable the nucleic acid single molecule to undergo fragment-type shift to pass through the contraction region; measuring a blockage current; and on this basis, recognizing the nucleic acid single molecule and acquiring fragment-type sequencing information. Performing accurate measurement on dynamic characteristics of double-stranded metastable conformations can realize high-spatial-resolution identification of three base groups at the tail end of identification barcodes, thereby achieving high-accuracy sequencing of target sequences.

Classes IPC  ?

• C12Q 1/6869 - Méthodes de séquençage
• C07K 14/31 - Peptides ayant plus de 20 amino-acidesGastrinesSomatostatinesMélanotropinesLeurs dérivés provenant de bactéries provenant de Micrococcaceae (F) provenant de Staphylococcus (G)

Abrégé

The present application relates to the technical field of semiconductors, and discloses a resonator and an electronic device. The resonator comprises a substrate and at least three resonant bodies connected to the substrate by means of a support structure, wherein each resonant body comprises a top electrode, a piezoelectric layer and a silicon layer which are arranged from top to bottom, and at least two of the top electrodes having the same polarity are electrically connected by means of a bus bar spanning the top of the top electrodes. According to the resonator and the electronic device provided by the present application, under the condition that the number of support structures is not increased as much as possible (namely, under the condition that support loss is not increased as much as possible), the parasitic mode is reduced, and the Q value of the resonator is increased.

Classes IPC  ?

• H03H 9/02 - Réseaux comprenant des éléments électromécaniques ou électro-acoustiquesRésonateurs électromécaniques Détails

Abrégé

A method for treating a waste plastic based on a persulfate system is provided. The method includes the following steps: mixing the waste plastic, sulfuric acid, sulfate, peroxymonosulfate, and water, and reacting at 80-140° C. for 3-15 h to complete the treatment; where the waste plastic is polyethylene or polyethylene terephthalate; and the sulfate is copper sulfate or ferrous sulfate. The present invention reasonably regulates and controls each parameter in the reaction process while constructing a homogeneous catalysis system of transition metal activated peroxymonosulfate, and finally directionally converts the waste plastic into C7H12 and C10H12 fuels, which realizes high-efficiency recycling of the waste plastic, has a simple and convenient working procedure, and has a wide application prospect.

Classes IPC  ?

• C08J 11/16 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation par traitement avec une substance inorganique
• C10L 1/04 - Combustibles carbonés liquides à base essentielle de mélanges d'hydrocarbures

Abrégé

A method for enhancing the stability of an N-type semiconductor through oxygen elimination includes constructing an antioxidant layer on the surface of a semiconductor material, or blending the antioxidant with the N-type semiconductor material. The antioxidant removes the existing oxygen and related species in the N-type semiconductor, eliminates the related trap state, and prevents the N-type semiconductor from further degrading, so that the electrical properties such as mobility of the N-type semiconductor device are improved, and the operation stability and long-term storage stability are improved. In addition, the antioxidant also inhibits the photobleaching of N-type semiconductors and significantly improves the photochemical stability of N-type semiconductors.

Classes IPC  ?

• H01L 21/322 - Traitement des corps semi-conducteurs en utilisant des procédés ou des appareils non couverts par les groupes pour modifier leurs propriétés internes, p. ex. pour produire des défectuosités internes

Abrégé

A water-adaptive cement self-healing system, a preparation method and an application thereof are provided. A pH-triggered shell curing agent, an inorganic nano-emulsifier, and a polysaccharide shell material are added into deionized water to obtain an aqueous phase; an active diluent of epoxy is added to an epoxy to obtain a first oil phase; the aqueous phase is mixed with the first oil phase to obtain an oil/water emulsion; a surfactant is added into paraffin oil to obtain a second oil phase; the second oil phase is mixed with the oil/water emulsion to obtain an oil/water/oil emulsion; an acidic liquid is added into the oil/water/oil emulsion dropwise to obtain a solid, followed by centrifuging, washing, and freeze-drying to obtain a self-healing capsule; and then an epoxy curing agent is mixed with the self-healing capsule to obtain the water-adaptive cement self-healing system based on an oil/water/oil double-emulsion template.

Classes IPC  ?

• C04B 20/00 - Emploi de matières comme charges pour mortiers, béton ou pierre artificielle prévu dans plus d'un groupe et caractérisées par la forme ou la répartition des grainsTraitement de matières spécialement adapté pour renforcer leur propriétés de charge dans les mortiers, béton ou pierre artificielle prévu dans plus d'un groupe de Matières expansées ou défibrillées
• C04B 14/04 - Matières riches en siliceSilicates
• C04B 14/06 - QuartzSable
• C04B 14/10 - Argile
• C04B 20/10 - Revêtement ou imprégnation
• C04B 22/06 - OxydesHydroxydes
• C04B 22/10 - Acides ou leurs sels comportant du carbone dans la partie anionique, p. ex. carbonates
• C04B 24/12 - Composés contenant de l'azote
• C04B 103/40 - Agents tensio-actifsDispersants

Abrégé

A piezoelectric micromachined ultrasonic transducer (PMUT), a manufacturing method and an electrical product. The manufacturing method for a PMUT comprises: depositing a sacrificial layer (200) on the upper surface of a substrate (100) of a PMUT, wherein at least part of the upper surface of the substrate (100) is a curved surface (101); and releasing the material of the sacrificial layer (200) out of the PMUT by means of a preset channel (301). By means of the manufacturing method for a PMUT, a cavity size of a PMUT can be accurately acquired, and the manufacturing of a PMUT according to the method does not involve transforming a diaphragm layer of the PMUT from a planar surface structure to a curved surface structure, such that no additional stress and deformation are caused to the diaphragm layer of the PMUT, and the PMUT having a good uniformity and excellent performance can be manufactured.

Classes IPC  ?

• B06B 1/06 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par effet piézo-électrique ou par électrostriction
• B81B 7/02 - Systèmes à microstructure comportant des dispositifs électriques ou optiques distincts dont la fonction a une importance particulière, p. ex. systèmes micro-électromécaniques [SMEM, MEMS]

Abrégé

A piezoelectric micromachined ultrasonic transducer (PMUT), a manufacturing method, and an electrical product. The PMUT comprises: a substrate (100) provided with a cavity (101); and at least one piezoelectric thin film layer (300), electrode layers (200, 400) being provided on two sides of the piezoelectric thin film layer (300), and the electrode layer (200) below the piezoelectric thin film layer (300) closest to the substrate (100) being located above the substrate (100). Viewed from a direction parallel to the substrate (100), the piezoelectric thin film layer (300) and the electrode layers (200, 400) on the two sides thereof form a curved surface; the curved surface is formed by electrostatic forces between the top electrode (400), the bottom electrode (200) and the substrate (100). The diaphragm layer of the PMUT is curved by means of electrostatic forces between the electrode layers and between the electrode layers and the substrate, so that a PMUT diaphragm layer having high curvature is obtained. In addition, different electrostatic forces can be obtained by adjusting a direct-current voltage applied to the electrodes, so that the curvature of the PMUT diaphragm layer can be regulated and controlled, thereby greatly expanding the application range of the PMUT.

Classes IPC  ?

• B06B 1/06 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par effet piézo-électrique ou par électrostriction
• B81B 7/02 - Systèmes à microstructure comportant des dispositifs électriques ou optiques distincts dont la fonction a une importance particulière, p. ex. systèmes micro-électromécaniques [SMEM, MEMS]

Abrégé

An ultrasonic transducer and an electronic device, relating to the technical field of semiconductors. The ultrasonic transducer comprises a conductive layer (100) and a diaphragm (200) provided on the conductive layer (100). The diaphragm (200) comprises a first electrode (210), a first piezoelectric layer (220), and a second electrode (230) stacked from bottom to top. A first alternating-current power supply (300) having direct current bias is connected between the first electrode (210) and the conductive layer (100), and a second alternating-current power supply (400) is connected between the first electrode (210) and the second electrode (230). A cavity (500) is formed between the conductive layer (100) and the diaphragm (200). When the diaphragm (200) is in a working state, the part of the diaphragm (200) opposite to the cavity (500) is curved when viewed from the direction parallel to the conductive layer (100), or when the diaphragm (200) is in a working state or is not in a working state, the part of the diaphragm (200) opposite to the cavity (500) is curved when viewed from the direction parallel to the conductive layer (100).

Classes IPC  ?

• B06B 1/06 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par effet piézo-électrique ou par électrostriction

Abrégé

The disclosure discloses a general blockchain performance evaluation method based on a dynamic proxy and a smart contract, and the method includes following steps: obtaining an automation configuration item script, configuring a chain system to be tested based on the automation configuration item script, and designing a proxy server network interface of the chain system to be tested; obtaining a general hierarchical test workload, and obtaining an environmental test result of the chain system to be tested based on the proxy server network interface and the general hierarchical test workload; obtaining a workload test execution result based on the proxy server network interface and the environmental test result; and carrying out a multi-dimensional evaluation on the workload test execution result to complete a blockchain performance evaluation.

Classes IPC  ?

• G06F 11/36 - Prévention d'erreurs par analyse, par débogage ou par test de logiciel
• G06F 11/34 - Enregistrement ou évaluation statistique de l'activité du calculateur, p. ex. des interruptions ou des opérations d'entrée–sortie

Abrégé

An energy scheduling method and apparatus. The method comprises: constructing a thermal equilibrium constraint according to thermal immittance parameters of heterogeneous building clusters (S110); constructing a thermal load constraint according to a heat transfer temperature of a heat transfer medium of a heat supply pipeline corresponding to a heat radiation region of each building node (S120); constructing a heat supply network pipeline constraint according to the topological structure of heat supply pipelines in the building clusters (S130); constructing a power distribution network constraint according to an electric immittance parameter in a power distribution network system to which the heterogeneous building clusters belong (S140); constructing an energy equilibrium constraint according to an energy conversion situation of an energy transfer party and an energy consumption situation of each building cluster (S150); constructing an energy selling-price constraint according to upper and lower limits of an energy selling price, and a level-skipping energy selling price (S160); and when a target constraint condition and the energy selling-price constraint are met, determining a target energy allocation situation of the energy transfer party according to an energy requirement cost of the energy transfer party and an energy requirement cost of each building cluster (S170).

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

The present invention discloses an intelligent internet of things integrated perception system and method thereof, the integrated perception system comprises a data perception layer (1); a connection and transmission layer (2); an edge computation layer (3); a cloud computation layer (4); an application layer (5). The data perception layer (1) is composed of a plurality of sensor device nodes, and transmits the monitored environmental data to the edge computation layer (3) through the connection and transmission layer (2); the cloud computation layer (4) performs data fusion according to data provided by each edge computation device, and forms action instructions for the plurality of application devices. Multi-layer IoT integrated perception is realized, and the requirement for the comprehensive and integrated processing of different types of data in the IoT is satisfied, realizes the deployment of the monitoring network topology of the data perception layer and improves the monitoring efficiency of the sensor device nodes.

Classes IPC  ?

• H04W 40/24 - Gestion d'informations sur la connectabilité, p. ex. exploration de connectabilité ou mise à jour de connectabilité
• G16Y 20/10 - Information détectée ou collectée par les objets relative à l’environnement, p. ex. la température relative à l’emplacement
• H04W 4/38 - Services spécialement adaptés à des environnements, à des situations ou à des fins spécifiques pour la collecte d’informations de capteurs
• H04W 76/10 - Établissement de la connexion
• H04W 84/18 - Réseaux auto-organisés, p. ex. réseaux ad hoc ou réseaux de détection

Abrégé

Disclosed in the present application are a multi-channel miniature electroencephalogram collection system and method, and an electronic device. The system comprises a plurality of single-channel electroencephalogram collection apparatuses, a data label synchronization apparatus and a terminal device, wherein the single-channel electroencephalogram collection apparatuses may also form a single-channel miniature electroencephalogram collection system with the first two modules. Circuits of the multi-channel miniature electroencephalogram collection system and the single-channel miniature electroencephalogram collection system may each comprise an electroencephalogram collection circuit of a Bluetooth low energy (BLE) MCU for logic control and data transmission. A hairpin structure is designed, such that a device may be fixed onto a scalp by means of the hairpin structure design of the device and may be used in cooperation with an auxiliary electrode having viscosity. A miniature single-channel electroencephalogram collection apparatus is designed with a replaceable direct connection electrode. The data label synchronization apparatus is based on double serial ports, which are respectively used for receiving stimulation label information sent by a stimulation program, and sending a synchronized data label to an upper computer. The present application enables an apparatus to have the characteristics of low power consumption, miniaturization and portability, reduces the complexity of a collection device, improves the accuracy of a label, and has a higher expansibility and reconfigurability.

Classes IPC  ?

• A61B 5/291 - Électrodes bioélectriques à cet effet spécialement adaptées à des utilisations particulières pour l’électroencéphalographie [EEG]
• A61B 5/254 - Pinces
• H04W 4/80 - Services utilisant la communication de courte portée, p. ex. la communication en champ proche, l'identification par radiofréquence ou la communication à faible consommation d’énergie
• H04W 56/00 - Dispositions de synchronisation

Abrégé

The present disclosure relates to a wind farm layout and yaw control method, and an electronic device. The wind farm layout and yaw control method comprises the following steps: acquiring wind farm data, importing the wind farm data into a WFSim model for simulation, obtaining original power data of the wind farm, counting and recording modifiable wind farm layout and yaw parameters, adjusting variable parameters to be changed, using the WFSim model for simulation to obtain an optimal parameter range of different variables and combining the optimal parameters to obtain an optimal working condition, and using the WFSim model for simulation to obtain optimal power data. The wind farm layout and yaw control method according to the present disclosure is based on optimizing the power output of the wind farm, so that it is very convenient to acquired information. Meanwhile, a WFSim two-dimensional fidelity model is used to simulate and solve the wind farm, so that the simulation time can be reduced while ensuring data accuracy.

Classes IPC  ?

• F03D 7/04 - Commande automatiqueRégulation

Abrégé

The present invention belongs to the technical field of biosensing. Disclosed are an aptamer fluorescent brain natriuretic peptide measurement apparatus based on a smart phone, and a sensing method. The apparatus comprises a measurement control mechanism, a fluorescent quick-measurement mechanism and an aptamer fluorescent sensor. On the basis of a fluorescence resonance energy transfer principle, the aptamer fluorescent sensor uses oligonucleotides labeled with carboxyfluorescein as an aptamer to specifically capture brain natriuretic peptide, so as to obtain a linear response relationship between the concentration of a substance and a fluorescence intensity; the measurement control mechanism receives a fluorescence signal and converts an optical signal into an electrical signal by means of photoelectric conversion, performs filtering, amplification and analog-to-digital conversion processing on same and then transmits same to a smart phone by means of Bluetooth, so as to display a measurement result; and the fluorescent quick-measurement mechanism uses an OTG function of the smart phone to connect to a USB peripheral interface and takes same as a plug-in type power supply. The present invention fills in a gap in portable digital fluorescence measurement of brain natriuretic peptide, conforms to the requirement for the quick measurement measurement of brain natriuretic peptide, and has a good development prospect in the field of highly sensitive and effective instant measurement.

Classes IPC  ?

• G01N 21/64 - FluorescencePhosphorescence

Abrégé

A catalytic synthesis method, a device and a system for ammonia synthesis through orderly regulation of the electronic domain of nitrogen are provided. Nitrogen and hydrogen are used as raw materials, and a multi-composition material with magnetic material as active site is used as a catalyst, thermal field, magnetic field and electric field or thermal field and electromagnetic field are applied to nitrogen, hydrogen and catalyst at the same time. The invention adopts the catalytic synthesis method, device and system for the mild ammonia synthesis at low temperature and low pressure conditions through orderly regulation of the electronic domain of nitrogen.

Classes IPC  ?

• C01C 1/04 - Préparation d'ammoniac par synthèse
• B01J 8/00 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés
• B01J 8/06 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules immobiles, p. ex. dans des lits fixes dans des réacteurs tubulairesProcédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules immobiles, p. ex. dans des lits fixes les particules solides étant disposées dans des tubes
• B01J 21/12 - Silice et alumine
• B01J 23/78 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe du cuivre ou des métaux du groupe du fer en combinaison avec des métaux, oxydes ou hydroxydes prévus dans les groupes avec des métaux alcalins ou alcalino-terreux ou du béryllium

Abrégé

The present invention discloses a BNP aptamer fluorescence detection device based on a smart phone and a sensing method thereof, including a detection control mechanism, a fluorescence rapid detection mechanism and an aptamer fluorescence sensor. The aptamer fluorescence sensor uses oligonucleotides marked by carboxy fluorescein as an aptamer to capture the BNP specificity. The detection control mechanism receives a fluorescence signal to display test results. The fluorescence rapid detection mechanism uses the OTG function as a plug-in power supply. The present invention fills the gap of portable fluorescence detection for digital BNP.

Classes IPC  ?

• G01N 33/53 - Tests immunologiquesTests faisant intervenir la formation de liaisons biospécifiquesMatériaux à cet effet
• B01L 3/00 - Récipients ou ustensiles pour laboratoires, p. ex. verrerie de laboratoireCompte-gouttes
• G01N 21/03 - Détails de structure des cuvettes
• G01N 21/64 - FluorescencePhosphorescence
• G01N 33/68 - Analyse chimique de matériau biologique, p. ex. de sang ou d'urineTest par des méthodes faisant intervenir la formation de liaisons biospécifiques par ligandsTest immunologique faisant intervenir des protéines, peptides ou amino-acides

Abrégé

Provided in the present disclosure is a renewable energy utilization system based on nitrogen-free combustion and carbon dioxide circulation, which can be applied to the technical field of energy. The system comprises: an electrolysis unit, a carbon dioxide collection unit, a methanol synthesis unit, an internal combustion engine generator set and a methanol reforming reaction unit. The methanol synthesis unit is connected to the electrolysis unit and the carbon dioxide collection unit. In the electrolysis unit, water is electrolyzed by using renewable energy, so as to obtain hydrogen and oxygen. In the carbon dioxide collection unit, carbon dioxide gas released during the utilization process of the renewable energy is collected. In the methanol synthesis unit, hydrogen and carbon dioxide gas are used to synthesize methanol. The internal combustion engine generator set is connected to the methanol synthesis unit, the electrolysis unit and the carbon dioxide collection unit, and is used for performing nitrogen-free combustion on methanol and oxygen so as to generate a tail gas and electric energy. The methanol reforming reaction unit is connected to the internal combustion engine generator set and the methanol synthesis unit, and is used for catalyzing methanol to perform a reforming reaction by utilizing tail gas waste heat, so as to obtain synthesis gas, and the synthesis gas is input into the internal combustion engine generator set to serve as a fuel for the internal combustion engine generator set.

Classes IPC  ?

• C25B 1/04 - Hydrogène ou oxygène par électrolyse de l'eau
• B01D 53/00 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols
• C25B 9/19 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes
• C01B 32/50 - Anhydride carbonique
• C01B 3/32 - Production d'hydrogène ou de mélanges gazeux contenant de l'hydrogène par réaction de composés organiques gazeux ou liquides avec des agents gazéifiants, p. ex. de l'eau, du gaz carbonique, de l'air

Abrégé

A method of automatically welding a welded seam of a saddle line for a saddle-type T joint belonging to the technical field of welding is provided, including: establishing a groove cross-sectional model, solving a variation law of a groove cross-sectional area, and planning a welding bead and a welding process parameter according to the groove cross-sectional area; establishing a welding torch pose mathematical model and obtaining a pose homogeneous transformation matrix T of a welding torch; establishing a three-dimensional model of a main pipe and a branch pipe, building a welding system through offline software, importing welding spot pose information, and generating welding torch pose offline command through the offline software; and performing automatic welding of the welded seam of the saddle line for the saddle-type T joint according to the planned welding bead and the welding process parameter and the generated welding torch pose offline command.

Classes IPC  ?

• B23K 9/095 - Surveillance ou commande automatique des paramètres de soudage
• B23K 9/028 - Soudage de joints continusSupportsPièces rapportées pour des joints curvilignes situés dans un plan

Abrégé

A bilevel coordinated optimization method for fixed and mobile charging facilities on highways, includes: constructing an optimization model framework which includes an upper-layer coordinated location optimization model and a lower-layer coordinated capacity optimization model, where the upper-layer coordinated location optimization model is used to optimize locations of charging stations and determine locations and time points of charging demands that require truck mobile charger (TMC) deployment, while the lower-layer coordinated capacity optimization model is used to optimize TMC and fixed charger (FC) capacities at candidate sites, improving an utilization rate of FCs; and performing equivalent linearization on a nonlinear problem using a big-M method and converting the problem into a mixed-integer linear programming model, and implementing a data exchange process between upper and lower layers using analytical target cascading. The present disclosure enhances the utilization and flexibility of charging facilities on highways.

Classes IPC  ?

• B60L 53/64 - Optimisation des coûts énergétiques, p. ex. en répondant aux tarifs d'électricité
• 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

Provided is a method for preparing an aromatic hydrocarbon-rich pyrolytic oil by catalytic pyrolysis of a waste mask, which relates to the technical field of waste treatment and resource utilization. The method includes: mixing the waste mask with a metal supported HZSM-5 molecular sieve catalyst to form a mixture; and subjecting the mixture to a catalytic pyrolysis reaction in a protective atmosphere to obtain the aromatic hydrocarbon-rich pyrolytic oil.

Classes IPC  ?

• C10G 1/00 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon
• B01J 29/40 - Zéolites aluminosilicates cristallinesLeurs composés isomorphes du type pentasil, p. ex. types ZSM-5, ZSM-8 ou ZSM-11
• B01J 29/46 - Métaux du groupe du fer ou cuivre
• B01J 37/02 - Imprégnation, revêtement ou précipitation
• B01J 37/08 - Traitement thermique

Abrégé

The present disclosure relates to an automatic patrol inspection and intelligent erosion defect detection method and apparatus for a flood discharge tunnel, and belongs to the technical field of patrol inspection and defect detection. The method includes: constructing a flood discharge tunnel erosion defect database; constructing a flood discharge tunnel erosion defect analysis and evaluation standard and early warning threshold; performing automatic patrol inspection; and performing image analysis processing and intelligent recognition model training. According to the present disclosure, a condition of the flood discharge tunnel can undergo automatic patrol inspection, an erosion impact degree can be rapidly recognized and determined, the downstream life safety are not in danger during flood discharge, and a patrol inspection efficiency and a detection efficiency can be noticeably improved.

Classes IPC  ?

• G01M 5/00 - Examen de l'élasticité des structures ou ouvrages, p. ex. fléchissement de ponts ou d'ailes d'avions
• B64U 50/19 - Propulsion utilisant des moteurs électriques
• B64U 101/26 - Véhicules aériens sans pilote spécialement adaptés à des utilisations ou à des applications spécifiques à la fabrication ou à l’entretien à la fabrication, à l’inspection ou à la réparation
• G06T 7/00 - Analyse d'image
• G06V 10/774 - Génération d'ensembles de motifs de formationTraitement des caractéristiques d’images ou de vidéos dans les espaces de caractéristiquesDispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant l’intégration et la réduction de données, p. ex. analyse en composantes principales [PCA] ou analyse en composantes indépendantes [ ICA] ou cartes auto-organisatrices [SOM]Séparation aveugle de source méthodes de Bootstrap, p. ex. "bagging” ou “boosting”
• G06V 10/776 - ValidationÉvaluation des performances
• 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

Abrégé

Provided are a radioactive medicament injection device and a working method therefor. The radioactive medicament injection device comprises a base, an injection needle, an injector assembly, and a pushing assembly. The injection needle is arranged on the base. The injector assembly is arranged on the base, and the injector assembly can move in a first direction relative to the base. The injector assembly has a first position and a second position. The injector assembly comprises a first injector and a second injector. Normal saline is provided in the first injector, and a radioactive medicament is provided in the second injector. The pushing assembly is arranged on the base. The pushing assembly can move in a second direction relative to the base. The first direction is perpendicular to the second direction. Under the condition that the injector assembly is located at the first position, the first injector communicates with the injection needle, and the pushing assembly moves in the second direction and pushes the first injector. Under the condition that the injector assembly is located at the second position, the second injector communicates with the injection needle, and the pushing assembly moves in the second direction and pushes the second injector.

Classes IPC  ?

• A61M 5/00 - Dispositifs pour faire pénétrer des agents dans le corps par introduction sous-cutanée, intravasculaire ou intramusculaireAccessoires à cet effet, p. ex. dispositifs de remplissage ou de nettoyage, appuis-bras
• A61M 5/145 - Perfusion sous pression, p. ex. utilisant des pompes utilisant des réservoirs sous pression, p. ex. au moyen de pistons
• A61B 17/135 - Tourniquets gonflables

Abrégé

The present disclosure discloses an automatic detection system for depressive disorder based on high frequency ASSR. The system includes an auditory stimulation module, a data acquisition module, a signal processing module, a depression detection module and an output module; the auditory stimulation module presents 40 Hz frequency-increasing sound stimulation signals to a user; the data acquisition module acquires EEG signals by a non-intrusive method for preprocessing to obtain ASSR data; the signal processing module extracts depressive disorder-related EEG features from the ASSR data; the depression detection module identifies a user depression state through decision fusion of the depressive disorder-related EEG features; and the output module identifies the user depression state according to the EEG features to generate an evaluation report for abnormity in EEG response, and feeds it back to the user.

Classes IPC  ?

• A61B 5/16 - Dispositifs pour la psychotechnieTest des temps de réaction
• A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus

Abrégé

A high-speed measurement method for the three-dimensional surface topography of a wafer, comprising: projecting a light curtain ray to a wafer under test, then collecting surface reflected light strip data of said wafer for calculating the XZ coordinate values corresponding to the current light curtain ray, and using the XZ coordinate values as two-dimensional measurement data (S2); collecting two-dimensional measurement data of said wafer at different rotation angles to obtain initial three-dimensional topography information of said wafer at the current rotation radius (S3); collecting initial three-dimensional topography information of said wafer corresponding to different rotation radii of said wafer (S4); and converting the initial three-dimensional topography information of said wafer on the basis of a cylindrical coordinate system, and then performing splicing processing to obtain three-dimensional surface topography information of said wafer (S5). Further disclosed is a high-speed measurement device for the three-dimensional surface topography of a wafer. Difficulties in high-precision complete scanning measurement for the three-dimensional surface topography of wafers are effectively solved, the automation integration level is high in terms of software and hardware, offline batch measurement for the three-dimensional surface topography of wafers can be achieved, and online high-speed measurement for the three-dimensional surface topography of wafers can also be achieved by means of integration to a production line.

Classes IPC  ?

• G01B 11/24 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer des contours ou des courbes

Abrégé

322-MXene as a deposition carrier and nitrogen as a carrier gas, a copper (II) bis(dimethylamino-2-propoxy) precursor and a diethyl zinc precursor are alternately pulsed on the deposition carrier, and a Cu-MXene composite catalyst with different copper distribution modes is obtained in different deposition periods. In the present invention, a sulfanilamide degradation path and the toxicity of an intermediate product are regulated and controlled by simultaneously regulating and controlling preparation process parameters, changing a copper distribution mode, regulating and controlling active sites of the catalyst and changing a persulfate activation path and the types of generated active species. Using the atomic layer deposition technology to load a metal can achieve uniform deposition, such that the composition and dispersion condition of the catalyst are accurately controlled, and the catalytic activity of the catalyst is improved.

Classes IPC  ?

• B01J 27/22 - Carbures
• C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
• C02F 101/38 - Composés organiques contenant de l'azote
• C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes

Abrégé

The present disclosure belongs to the technical field of electrochemical reactions, and discloses a photoelectrocatalytic reaction device for high-pressure environments and application thereof. An anode reactor and a cathode reactor have the same structure, are arranged in a mutual mirroring manner, and each include a reaction cavity and a cover plate. The reaction cavities are provided with round sapphire optics windows and connecting channels, and an ion exchange membrane is arranged between the connecting channels. The cover plates are provided with gas inlet pipeline connectors, gas outlet pipeline connectors, safety valves and pressure meters. Terminals are hermetically installed on the cover plates, metal copper rods are embedded into the terminals along central axes of the terminals, and inserting holes used for being connected with electrodes in an inserted manner are formed in bottoms of the metal copper rods. The device is especially suitable for analyzing properties of electrocatalytic.

Classes IPC  ?

• B01D 53/86 - Procédés catalytiques
• B01D 53/32 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par effets électriques autres que ceux prévus au groupe
• B01D 53/62 - Oxydes de carbone

Abrégé

Disclosed is an elastic electroencephalography dry electrode, comprising an electrode base and a plurality of dry electrode units, which are fixedly arranged on the electrode base, wherein each dry electrode unit comprises an elastic supporting element and at least one electrode probe element; one end of the elastic supporting element is fixed to the electrode base, and the other end thereof is connected to the electrode probe element; the electrode probe element is used for being in contact with a scalp to collect an electroencephalography signal; the elastic supporting element is used for transmitting the electroencephalography signal; and the electrode base comprises an electrode substrate element, an electrode unit fixing element and an electrode displacement limiting element. Further disclosed are an electroencephalography device and an application system.

Classes IPC  ?

• A61B 5/291 - Électrodes bioélectriques à cet effet spécialement adaptées à des utilisations particulières pour l’électroencéphalographie [EEG]
• A61B 5/251 - Moyens pour maintenir le contact de l’électrode avec le corps
• A61B 5/265 - Électrodes bioélectriques à cet effet caractérisées par les matériaux des électrodes contenant de l’argent ou du chlorure d’argent
• A61B 5/268 - Électrodes bioélectriques à cet effet caractérisées par les matériaux des électrodes contenant des polymères conducteurs, p. ex. des polymères PEDOT:PSS
• A61B 5/378 - Stimuli visuels
• A61B 5/384 - Appareils d’enregistrement ou d’affichage spécialement adaptés à cet effet

Abrégé

Disclosed herein are a photocatalytic material comprising a substrate, a plurality of TiO2 nanorods on the substrate, each nanorod having a surface, a layer of single metal atoms on the surface of each of the plurality of nanorods, where the metal atoms are selected from one or more of the group consisting of Pt, Pd, Ag, and Au, and a photoanode comprising the photocatalytic material aforementioned. Also disclosed herein is a method of forming glucaric acid from glucose by photoelectrochemical oxidation, the method comprising (a) providing a photoelectrochemical apparatus, and (b) supplying a source of light to the apparatus to convert glucose to glucaric acid.

Classes IPC  ?

• B01J 23/42 - Platine
• B01J 23/44 - Palladium
• B01J 21/06 - Silicium, titane, zirconium ou hafniumLeurs oxydes ou hydroxydes
• B01J 35/39 - Propriétés photocatalytiques
• C25B 3/07 - Composés contenant au moins un atome d’oxygène
• C25B 3/23 - Oxydation

Abrégé

A six-branch five-degree-of-freedom parallel machining robot. The parallel machining robot comprises a static platform (1) used as an assembly base, a group of branches used for pose adjustment, and a moving platform (3) used as an output assembly. An electric spindle (2) used as an output unit is arranged in the moving platform (3). The group of branches comprises a group of unconstrained branches (L1-L5) and a sixth branch (L6), and the sixth branch (L6) is in interactive connection with the static platform (1). The whole machine consists of six branches which are gathered, the branch structure of the unconstrained branches (L1-L5) can realize planar mounting of the five-degree-of-freedom parallel machining robot, and the cost is lower; the sixth branch (L6) is a constrained branch, and under the constraint of the sixth branch (L6), a five-degree-of-freedom movement of the moving platform (3) is realized by controlling stretching and contracting movements of the five unconstrained branches (L1-L5). Six parallel-connected branches are provided, so that the rigidity of the whole machine is high; the sixth branch (L6) can enable the output assembly to have a large working space. Therefore, the five-degree-of-freedom parallel machining robot has the advantages of high rigidity of the whole machine, good flexibility, large working space and low cost.

Classes IPC  ?

• B25J 9/00 - Manipulateurs à commande programmée

Abrégé

A three-branch-chain five-degree-of-freedom parallel robot. The parallel robot comprises a static platform (1) serving as a support foundation and a moving platform (2) for pose adjustment; a processing output unit for completing an execution action is arranged in the moving platform (2); an unconstrained branch chain group is arranged between the static platform (1) and the moving platform (2); a constrained branch chain for constraining is further provided between the static platform (1) and the moving platform (2); the constrained branch chain moves between branch chains of the unconstrained branch chain group or between extension lines of the unconstrained branch chain group. The parallel robot is composed of three branch chains, the three branch chains are connected to the moving platform (2) by means of movable joints, the three branch chains are connected to the static platform (1) by means of movable pairs, and the position and angle stiffness of the robot can be ensured by performing proportional constraints on the triangle defined by the movable joints and the triangle defined by hinge joints on the movable pairs. The parallel robot has the structural advantages of high stiffness and large working space, and can realize efficient processing of core parts in large-scale high-end apparatuses.

Classes IPC  ?

• B25J 9/00 - Manipulateurs à commande programmée

Abrégé

The present disclosure relates to a process and a device for producing vinyl acetate by an ethylene process. By additionally arranging an ethylene recovery membrane assembly in a vinyl acetate synthesis section, the content of inert components such as nitrogen in a circulating system is controlled, ethylene gas is recovered from non-condensable gas, and a recovery rate of the ethylene reaches 58% or above. By adding sideline extraction at a refined VAC tower in a vinyl acetate refining section, a vinyl acetate product with purity higher than 99.98% is obtained, a mass fraction of acetic acid is less than or equal to 20 ppm, a mass fraction of acetaldehyde is less than or equal to 20 ppm, and a mass fraction of water is less than or equal to 100 ppm. In synthesis and refining processes of the vinyl acetate, a cooling method is adopted.

Classes IPC  ?

• C07C 67/05 - Préparation d'esters d'acides carboxyliques par réaction d'acides carboxyliques ou d'anhydrides symétriques sur des liaisons carbone-carbone non saturées avec oxydation
• B01D 53/22 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par diffusion
• B01J 19/00 - Procédés chimiques, physiques ou physico-chimiques en généralAppareils appropriés

Abrégé

An asynchronous and concurrent transaction processing method with high-performance oriented to a permissioned blockchain belongs to the field of blockchain technologies. The method designs two processing schemes for abort transactions, namely, additional submission of unnecessary abort transactions that are serializable and delayed centralized processing of long-conflict-chain transaction aggregation. In order to avoid the instability of system transaction processing performance caused by single point failure, the method designs a multi-node round robin consensus strategy. In addition, an inter-node auxiliary concurrency acceleration scheme is designed, which can improve the transaction performance of the whole of the system only by upgrading some of node devices in the system.

Classes IPC  ?

• H04L 9/32 - Dispositions pour les communications secrètes ou protégéesProtocoles réseaux de sécurité comprenant des moyens pour vérifier l'identité ou l'autorisation d'un utilisateur du système
• H04L 9/00 - Dispositions pour les communications secrètes ou protégéesProtocoles réseaux de sécurité

Abrégé

This invention relates to a multi-element membrane separator and separation method based on spiral-wound membrane elements. It includes a membrane housing, spiral-wound membrane elements, and baffles on both sides of the membrane housing, designed to secure the spiral-wound membrane elements. The permeate tubes of the spiral-wound membrane elements are connected to the openings in the perforated plates. Sealing rings are respectively provided at the connections of the permeate tubes and the perforated plate openings. This multi-element membrane separator enables a more compact arrangement of membrane elements, reducing the footprint of the membrane separation device. It also reduces the use of materials such as membrane housing, pipelines, and connecting fittings, thereby lowering equipment costs and the difficulty of membrane device assembly.

Classes IPC  ?

• B01D 63/12 - Modules à membranes enroulées en spirale comprenant plusieurs ensembles enroulés en spirale
• B01D 53/22 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par diffusion

Abrégé

The present disclosure discloses a hundred-kilowatts-level monolithic fiber laser based on auxiliary lasers and hybrid cladding pumping scheme. Multi-wavelength auxiliary lasers and a signal laser are simultaneously coupled into a core of a gain fiber, and the gain fiber provides gains for the auxiliary lasers and the signal laser under multi-wavelength cladding pumping. The multi-wavelength auxiliary lasers and the signal laser are sequentially amplified under the action of gain competition, and the amplification of signal laser is suppressed at a front segment of the gain fiber, while the signal laser is effectively amplified at a rear segment of the gain fiber after the multi-wavelength auxiliary lasers are reabsorbed; quantum defects generated are reduced, and uniformly distributed thermal loads will be achieved, and the bearing capacity of laser power is improved, thereby further achieving inhibition on the transverse mode instability effect.

Classes IPC  ?

• H01S 3/094 - Procédés ou appareils pour l'excitation, p. ex. pompage utilisant le pompage optique par de la lumière cohérente
• H01S 3/067 - Lasers à fibre optique

Abrégé

A method for predicting a critical caking period of a crystal particle, comprising the following steps: first, establishing a CHS crystal bridge growth model database of a crystal particle of the same type as a crystal particle to be predicted, and then, according to the equivalent particle radius, a storage environment temperature, and a high and low environment humidity alternating condition of the crystal particle to be predicted, selecting corresponding existing data in the CHS crystal bridge growth model database and calculating a critical caking period by means of an empirical calculation formula, wherein the calculation result is a predicted critical caking period of the crystal particle. The method has the characteristics of being time saving and convenient, having good universality and high prediction accuracy, etc., and can quickly predict the critical caking periods of crystal particle products of multiple particle sizes under different humidity storage conditions within one week at most, thereby greatly reducing time cost, and providing a guidance basis for storage of industrial crystal particle products.

Classes IPC  ?

• G01N 33/00 - Recherche ou analyse des matériaux par des méthodes spécifiques non couvertes par les groupes
• G06F 17/00 - Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des fonctions spécifiques

Abrégé

Disclosed is an information freshness perception distributed cache system for a high definition map. The method is based on an information freshness perception vehicle request decision module and a distributed cache decision module. The information freshness perception vehicle request decision module is used to establish a request connection between vehicles to obtain a vehicle request decision for which a delay is minimized and dynamic data freshness is ensured. The distributed cache decision module in an edge auxiliary cache scenario obtains, on the basis of an MAMAB distributed algorithm, a cache decision of a roadside unit. According to the method, a matching theory method is used to determine a vehicle request decision so as to minimize a download delay and loss of dynamic data freshness; and the cache decision of the roadside unit is determined by means of the distributed method so as to further reduce the download delay, thus ensuring the dynamic data freshness while ensuring low latency.

Classes IPC  ?

• H04W 4/46 - Services spécialement adaptés à des environnements, à des situations ou à des fins spécifiques pour les véhicules, p. ex. communication véhicule-piétons pour la communication de véhicule à véhicule
• H04L 67/1097 - Protocoles dans lesquels une application est distribuée parmi les nœuds du réseau pour le stockage distribué de données dans des réseaux, p. ex. dispositions de transport pour le système de fichiers réseau [NFS], réseaux de stockage [SAN] ou stockage en réseau [NAS]

Abrégé

The present disclosure relates to the technical field of oxygen carrier, discloses a medium-entropy perovskite oxygen carrier and its preparation method and application thereof, the synthesis procedure includes preparing an aqueous solution from metallic nitrate serving as a raw material, performing a coprecipitation reaction with at least one of aqueous ammonia solution, a sodium hydroxide aqueous solution or a sodium carbonate aqueous solution as a precipitant at a pH value of 9.5 to 10.5; obtaining the La3CoMnAlO9 powers after stirring, standing, washing, drying and calcining. The preparation method is simple, synthetic conditions are easy to control, and batch production could be achieved.

Classes IPC  ?

• C01F 17/34 - Aluminates, p. ex. YAlO3 ou Y3-xGdxAl5O12

Abrégé

Embodiments of this application provide a human-computer interaction method, a human-computer interaction apparatus, and a storage medium. The method includes: displaying a human-computer interface, where the human-computer interface includes an operable object and a visual stimulus region; and executing a first operational command on the operable object, where the first operational command is determined based on a first signal, the first signal is an electroencephalography signal generated when a user gazes at a first region, the first region is one of a plurality of regions around the visual stimulus region, different electroencephalography signals are generated when the user gazes at different regions of the plurality of regions, and the different electroencephalography signals indicate to execute different operational commands related to the operable object. According to this application, the user does not need to gaze directly at a visual stimulus and can deliver different operational commands quickly, which improves user experience.

Classes IPC  ?

• G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur

Abrégé

A MEMS loudspeaker array (100), which relates to the field of MEMS loudspeakers, and is used for solving the technical problem that the sound production efficiency and the working bandwidth of MEMS loudspeakers cannot be simultaneously met. The MEMS loudspeaker array (100) comprises a substrate (23) and a diaphragm unit array provided on the substrate (23), the diaphragm unit array comprising at least two diaphragm units (10) arranged in a spaced manner, and the at least two diaphragm units (10) having at least two different resonance frequencies. The present invention can increase the sound production efficiency of the MEMS loudspeaker array (100) while meeting the working bandwidth of the MEMS loudspeaker array (100).

Classes IPC  ?

• H04R 19/00 - Transducteurs électrostatiques

Abrégé

The invention belongs to the field of welding technology and discloses a CMT automatic overlaying method for opening in side wall of bimetallic composite pipes. The method includes: establishing a mathematical model of the opening in a side wall to be welded; Based on the mathematical model, determining the trajectory of the saddle line during overlaying; dividing the trajectory of the saddle line into several welding runs, all of which adopt the downslope welding process; establishing a three-dimensional model of the opening in the side wall to be welded and a CMT overlaying system simulation model; Based on the simulation model, planning the overlaying path of the CMT overlaying, and generating an overlaying offline instruction; Based on the offline instruction, performing CMT overlaying on the opening in the side wall to be welded according to the overlaying sequence, so as to obtain a weld overlay.

Classes IPC  ?

• B23K 9/095 - Surveillance ou commande automatique des paramètres de soudage
• B23K 9/013 - Découpage, entaillage, décriquage ou dépolissage à l'arc
• B23K 9/16 - Soudage ou découpage à l'arc utilisant des gaz de protection
• B23K 101/10 - Pipe-lines

Abrégé

The present disclosure relates to a thermal coupling method for preparing ethylene by ethanol dehydration and device thereof. The device includes an ethanol dehydration reaction system, a quenching compression system, an alkaline washing system, a molecular sieve drying system and an ethylene purification and propylene refrigeration cycle system; ethanol dehydration reaction products in the ethanol dehydration reaction system serve as a heat source for preheating, vaporization and superheating of a raw material of ethanol; tower bottoms of an evaporation tower in the quenching compression system serve as a heat source for preheating of a feed stream of the evaporation tower and heating of an overhead gas of a quenching tower; products of ethylene in the alkaline washing system serve as a cold source for cooling of crude ethylene.

Classes IPC  ?

• C07C 1/24 - Préparation d'hydrocarbures à partir d'un ou plusieurs composés, aucun d'eux n'étant un hydrocarbure à partir de composés organiques ne renfermant que des atomes d'oxygène en tant qu'hétéro-atomes par élimination d'eau
• C07C 7/04 - Purification, séparation ou stabilisation d'hydrocarburesEmploi d'additifs par distillation
• C07C 7/12 - Purification, séparation ou stabilisation d'hydrocarburesEmploi d'additifs par adsorption, c.-à-d. purification ou séparation d'hydrocarbures à l'aide de solides, p. ex. à l'aide d'échangeurs d'ions
• C09K 5/04 - Substances qui subissent un changement d'état physique lors de leur utilisation le changement d'état se faisant par passage de l'état liquide à l'état vapeur ou vice versa

Abrégé

The present invention relates to the technical field of inspection and defect detection, and relates to an automatic inspection and intelligent corrosion defect detection method and device for a spillway tunnel. The method comprises the following steps: establishing a spillway tunnel corrosion defect database; establishing spillway tunnel corrosion defect analysis and evaluation standards and an early warning threshold; performing automatic inspection; and performing image analysis processing and intelligent identification model training. According to the present invention, the condition of a spillway tunnel can be automatically inspected, a corrosion type can be quickly identified, the degree of influence of corrosion is analyzed and determined, an early warning alarm prompt is given when the corrosion exceeds a threshold, and automatic and rapid early warning and prompting processing can be realized, such that downstream life safety dangers caused during flood discharge are avoided, the degree of intelligence is higher, the accident prevention capability is higher, the inspection efficiency and the detection efficiency are greatly improved, the labor costs are greatly reduced, and meanwhile safety accidents caused by personnel entering the spillway tunnel are avoided.

Classes IPC  ?

• G01N 21/95 - Recherche de la présence de criques, de défauts ou de souillures caractérisée par le matériau ou la forme de l'objet à analyser
• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures
• B64C 39/02 - Aéronefs non prévus ailleurs caractérisés par un emploi spécial

Abrégé

The present invention relates to an electrochemical sensing intelligent chamber with integrated environmental parameters, comprising a chamber body of the intelligent chamber for electrochemical sensing and detection. A communication control unit, a temperature monitoring unit, a gas detection unit and an electrochemical sensing and detection unit are arranged in the chamber body. An environmental parameter monitoring unit that can monitor temperature and gas is integrated; and all monitored environmental variables may be uploaded to a smart phone for a user to view. Operation steps in the electrochemical sensor measurement process conducted in the chamber body are fully automated.

Classes IPC  ?

• G01N 27/27 - Association de plusieurs systèmes ou cellules de mesure, chacun mesurant un paramètre différent, dans laquelle les résultats des mesures peuvent être, soit utilisès indépendamment, les systèmes ou les cellules étant physiquement associés, soit combinés pour produire une valeur représentative d'un autre paramètre
• G01D 21/02 - Mesure de plusieurs variables par des moyens non couverts par une seule autre sous-classe
• G01N 35/04 - Détails du transporteur
• G01N 35/10 - Dispositifs pour transférer les échantillons vers, dans ou à partir de l'appareil d'analyse, p. ex. dispositifs d'aspiration, dispositifs d'injection

Abrégé

An intelligent electrochemical-sensing cabin integrating environmental parameters. The intelligent electrochemical-sensing cabin comprises a cabin body of an intelligent cabin for electrochemical sensing and detection, wherein a communication control unit, a temperature monitoring unit, a gas measurement unit and an electrochemical sensing and detection unit are arranged in the cabin body; the communication control unit can communicate with a program control end of an intelligent control system for electrochemical sensing and detection; the temperature monitoring unit can automatically adjust the temperature in the cabin body; the gas measurement unit can measure the carbon dioxide concentration in the cabin body and transmit the carbon dioxide concentration to the program control end by means of the communication control unit; and the electrochemical sensing and detection unit can automatically complete an electrochemical detection process under the control of the communication control unit. An environmental parameter monitoring unit capable of monitoring a temperature and monitoring a gas is integrated, and all detected environment variables may be uploaded to a smartphone for a user to check, thereby facilitating subsequent standardization of the environment variables. Operation steps, which are performed in a cabin body, involved in the detection process of an electrochemical sensor are all automated, thereby greatly improving the detection efficiency.

Classes IPC  ?

• G01N 27/26 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant des variables électrochimiquesRecherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en utilisant l'électrolyse ou l'électrophorèse
• G01N 35/04 - Détails du transporteur
• G01N 35/10 - Dispositifs pour transférer les échantillons vers, dans ou à partir de l'appareil d'analyse, p. ex. dispositifs d'aspiration, dispositifs d'injection
• G01D 21/02 - Mesure de plusieurs variables par des moyens non couverts par une seule autre sous-classe

Abrégé

Disclosed is a multi-user collaboration platform based on edge computing and a directed acyclic graph. A collaboration method is based on an edge computing platform, and the edge computing platform comprises a base station, an external environment information acquisition module, a deep reinforcement learning decision module and a coordination system. The external environment information acquisition module is used for acquiring a current channel gain between the base station and each user to enable the coordination system to know a current Internet situation; the deep reinforcement learning decision module is used for outputting a multi-user collaboration strategy, an offloading strategy and a local computing frequency strategy; and the deep reinforcement learning decision module comprises a multivariate neural network unit, an agent, a convergence training unit and an experience pool. According to the present invention, the amount of transmitted data for multi-user collaboration can dynamically change, user subtask offloading decisions can dynamically change, and a local computing frequency of each user can also dynamically change, so that the function of optimizing application performance in joint consideration of a delay, a cooperation gain and energy consumption is realized.

Classes IPC  ?

• H04W 72/121 - Planification du trafic sans fil pour les groupes de terminaux ou d’utilisateurs

Abrégé

A robot calibration method and device based on an equivalent kinematic model. The method comprises: regarding a real robot system, which has a degree of freedom f≤6 and includes a plurality of classes of time-invariant error sources, as a six-degree-of-freedom equivalent kinematic system to perform calibration, wherein the six-dimensional pose vector y of an output component of the equivalent system is the same as that of an output component of the real system, and the equivalent system comprises a position forward kinematics model (aa), where (bb) is a nominal value of a kinematics parameter of the known real system, ρ is a total joint variable of the equivalent system, q is a driving joint variable of the real system, and α is an adjustable constant parameter vector; constructing a function relationship between ρ and α; acquiring a pose measurement value of the real system, and calculating an estimate (cc) of the adjustable constant parameter vector α in a decoupling manner in a joint space on the basis of an iterative algorithm; according to the function structure of ρ and (cc), correcting the driving joint variable corresponding to a received motion trajectory instruction set; and according to the corrected driving joint variable, driving a robot to move.

Classes IPC  ?

• B25J 9/16 - Commandes à programme

Abrégé

A method of analytical calculation of power supply reliability indexes of a power distribution network includes (A1) acquiring parameters of the power distribution network; (A2) building a reliability calculation model, which includes treating the power distribution network as a node-branch calculation unit and numbering nodes and branches in the power distribution network; (A3) building correlation matrices, and calculating a power supply path matrix and a tie-line matrix, wherein the correlation matrices are a node-branch association matrix, a section switch matrix and a fuse matrix; (A4) deriving a fault incidence matrix through the power supply path matrix, the section switch matrix, the fuse matrix and the tie-line matrix, and calculating the reliability indexes of the nodes and the power distribution network; and (A5) identifying vulnerable links by performing sensitivity analysis through partial derivative transformation for quantifiable parameters or perturbation transformation for unquantifiable parameters on an expression of the reliability indexes.

Classes IPC  ?

• G05B 23/02 - Test ou contrôle électrique
• G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
• G06F 30/13 - Conception architecturale, p. ex. conception architecturale assistée par ordinateur [CAAO] relative à la conception de bâtiments, de ponts, de paysages, d’usines ou de routes
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif

Abrégé

Disclosed in the present invention is a dual-frequency millimeter wave phased array system, comprising a 5G dual-frequency millimeter wave phased array chip and a plurality of dual-frequency dual-polarization antennas connected thereto, the 5G dual-frequency millimeter wave phased array chip being provided with a plurality of dual-polarization phased array channels formed by horizontal polarization phase-controlled channels and vertical polarization phase-controlled channels, a broadband power divider and a polarization leakage cancellation circuit. Each dual-frequency dual-polarization antenna is connected to the broadband power divider by means of one of the dual-polarization phased array channels, the broadband power divider is connected to the polarization leakage cancellation circuit, and the polarization leakage cancellation circuit is connected to a vertical polarization port and a horizontal polarization port. In the present invention, the polarization leakage cancellation circuit is arranged at the ports of a radio frequency synthesis network, which effectively enhances the isolation degree between polarization signals, and increases the signal-to-noise ratio of the phased array chip in a transceiving mode, thus reducing the bit error rate.

Classes IPC  ?

• H04B 1/04 - Circuits

Abrégé

A PMUT structure, comprising: a transistor unit (1000) and a PMUT unit (2000). One side of the transistor unit (1000) comprises a transistor; the PMUT unit (2000) comprises a PMUT and a support layer (200); the PMUT comprises a first electrode layer (250), a second electrode layer (230), and a piezoelectric layer (240); one side and the other side of the piezoelectric layer (240) are respectively provided with the first electrode layer (250) and the second electrode layer (230); the PMUT structure further comprises: a cavity (201) for the PMUT; and one side of the support layer (200) is connected to one side of the transistor unit (1000), and the other side of the support layer (200) comprises a flat surface portion connected to the other side of the piezoelectric layer (240). The PMUT structure facilitates the formation of a high-quality piezoelectric thin film. Further provided are a manufacturing method for a PMUT structure, a PMUT structure array, and an electronic device.

Classes IPC  ?

• B81B 3/00 - Dispositifs comportant des éléments flexibles ou déformables, p. ex. comportant des membranes ou des lamelles élastiques
• B06B 1/06 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par effet piézo-électrique ou par électrostriction

Abrégé

The present invention relates to a micromachined ultrasonic transducer structure and a manufacturing method therefor. The micromachined ultrasonic transducer structure comprises a first PMUT and a second PMUT; each PMUT comprises a top electrode layer, a bottom electrode layer and a piezoelectric layer; the first PMUT is arranged on a first bearing layer, the second PMUT is arranged on a second bearing layer, and the first bearing layer is separate from the second bearing layer; and a transistor unit, which comprises a transistor substrate, a transistor, and a circuit protection layer covering the transistor, wherein the first PMUT and the second PMUT are arranged as spaced apart in the lateral direction at one side of the circuit protection layer, the piezoelectric coefficient of a piezoelectric layer of one PMUT among the first PMUT and the second PMUT is higher than the piezoelectric coefficient of the piezoelectric layer of the other PMUT among the first PMUT and the second PMUT, and the permittivity of the piezoelectric layer of one PMUT is lower than the permittivity of the piezoelectric layer of the other PMUT. The present invention also relates to an electronic device comprising the present micromachined ultrasonic transducer structure.

Classes IPC  ?

• B06B 1/06 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par effet piézo-électrique ou par électrostriction

Abrégé

The present invention relates to a quartz resonator and a manufacturing method therefor. The quartz resonator comprises: a quartz piezoelectric layer; a bottom electrode and a top electrode, one of the top electrode and the bottom electrode being a first electrode, and the other being a second electrode, the first electrode being located on one side of the piezoelectric layer, and the second electrode being located on the other side of the piezoelectric layer; and a first package substrate and a second package substrate, which are respectively arranged on one side and the other side of the piezoelectric layer, the first package substrate being opposite the first electrode, and the second package substrate being opposite the second electrode, wherein an electrode leading-out end of the first electrode comprises a first external connecting portion at least extending, via an end face of the second package substrate, to the side of the second package substrate away from the second electrode, alternatively, an electrode leading-out end of the second electrode comprises a second external connecting portion at least extending, via an end face of the first package substrate, to the side of the first package substrate away from the first electrode. The present invention also relates to an electronic device.

Classes IPC  ?

• H03H 9/05 - Supports
• H03H 9/10 - Montage dans des boîtiers
• H03H 9/13 - Moyens d'excitation, p. ex. électrodes, bobines pour réseaux se composant de matériaux piézo-électriques ou électrostrictifs
• H03H 9/19 - Détails de réalisation de résonateurs se composant de matériau piézo-électrique ou électrostrictif ayant un résonateur unique en quartz
• H03H 3/02 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs

Abrégé

The present invention relates to a quartz resonator, comprising a bottom electrode, a top electrode and a quartz piezoelectric layer, the quartz piezoelectric layer having an inverted highly-protruded structure comprising bosses; a packaging structure, comprising a first packaging substrate, a second packaging substrate and a bonding sealing layer, the bonding sealing layer comprising a piezoelectric layer packaging portion, the piezoelectric layer packaging portion being a part of the quartz piezoelectric layer, and the piezoelectric layer packaging portion comprising the bosses. The first packaging substrate and the second packaging substrate are respectively bonded to the bosses on the two sides of the quartz piezoelectric layer so as to form a sandwich structure comprising the first packaging substrate, the quartz piezoelectric layer and the second packaging substrate. The present invention also relates to an electronic device.

Classes IPC  ?

• H03H 9/05 - Supports

Abrégé

The present invention relates to a PMUT structure in which a transistor unit and a PMUT unit having a cavity are integrated, and a manufacturing method therefor. The PMUT structure comprises: a transistor unit, which comprises a transistor and a transistor substrate; and a PMUT unit, which comprises a PMUT, comprising a first electrode layer, a second electrode layer and a piezoelectric layer, wherein the PMUT unit is bonded to the surface on one side of the transistor unit, the surface on one side of the transistor unit is a bonding surface of the transistor unit, and a cavity for the PMUT is located on the side of the bonding surface that is provided with the PMUT unit. The present invention further relates to a PMUT structure array comprising the PMUT structure, and an electronic device comprising the PMUT structure or the PMUT structure array.

Classes IPC  ?

• B06B 1/06 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par effet piézo-électrique ou par électrostriction
• B81C 1/00 - Fabrication ou traitement de dispositifs ou de systèmes dans ou sur un substrat
• B81B 7/00 - Systèmes à microstructure

Abrégé

The present invention relates to a PMUT structure and a manufacturing method therefor. The PMUT structure comprises: a transistor unit, comprising a transistor; and a PMUT unit, comprising a PMUT and a support layer, wherein the PMUT comprises a first electrode layer, a second electrode layer, and a piezoelectric layer. The PMUT structure further comprises a cavity used for the PMUT. The support layer is a single crystal thin film layer, and one side of the support layer faces the surface of the transistor unit; and the side of the PMUT unit facing the transistor unit and the surface of one side of the transistor unit are fitted and define at least a part of one side of the cavity. The present invention further relates to a PMUT structure array comprising the PMUT structure, and an electronic device comprising the PMUT structure or the PMUT structure array.

Classes IPC  ?

• B06B 1/06 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par effet piézo-électrique ou par électrostriction
• B81C 1/00 - Fabrication ou traitement de dispositifs ou de systèmes dans ou sur un substrat
• B81B 7/00 - Systèmes à microstructure

Abrégé

The present invention relates to a PMUT structure and a manufacturing method therefor. The PMUT structure comprises: a transistor unit, one side of the transistor unit comprising a transistor; and a PMUT unit, which comprises a PMUT, the PMUT comprising a first electrode layer, a second electrode layer, and a piezoelectric layer, wherein the PMUT structure comprises a cavity for the PMUT, one side of the PMUT unit is connected to one side of the transistor unit to form a connection surface, and the cavity is located above the connection surface. The present invention further relates to a PMUT structure array comprising said PMUT structure, as well as an electronic device comprising the PMUT structure or the PMUT structure array.

Classes IPC  ?

• B06B 1/06 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par effet piézo-électrique ou par électrostriction

Abrégé

The present invention relates to a micromachined ultrasonic transducer structure and a manufacturing method therefor. The micromachined ultrasonic transducer structure comprises a PMUT unit; the PMUT unit comprises a PMUT substrate, a first PMUT, and a second PMUT; each PMUT comprises a first electrode layer, a second electrode layer, and a piezoelectric layer, wherein the first PMUT and the second PMUT are arranged as laterally spaced apart at one side of the PMUT substrate; the piezoelectric coefficient of the piezoelectric layer of the first PMUT is higher than the piezoelectric coefficient of the piezoelectric layer of the second PMUT; and the permittivity of the piezoelectric layer of the first PMUT is lower than the permittivity of the piezoelectric layer of the second PMUT. The present invention further relates to an electronic device comprising the present micromachined ultrasonic transducer structure.

Classes IPC  ?

• B06B 1/06 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par effet piézo-électrique ou par électrostriction