Abstract

Provided are a water and acid adsorbing battery separator and a preparation method therefor, a water and acid adsorbing electrode plate, and a battery. A metal organic framework material is used and scrape-coated on a battery separator to prepare a composite separator, which can efficiently adsorb impurities such as water/acid from a battery, as a water and acid adsorbing battery separator. In one aspect, the water and acid adsorbing battery separator can effectively improve the cycling stability of a battery by adsorbing impurities such as water and an acid from the battery. In another aspect, the water and acid adsorbing battery separator can reduce control conditions of water during a battery assembly process, thereby effectively reducing the cost.

IPC Classes  ?

• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 50/403 - Manufacturing processes of separators, membranes or diaphragms
• H01M 50/411 - Organic material
• H01M 50/449 - Separators, membranes or diaphragms characterised by the material having a layered structure
• H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties

Abstract

The present disclosure provides a method and an apparatus of processing a positioning information, an electronic device, and a storage medium, which may be applied to a field of a positioning technology. The method includes: acquiring, in response to a positioning request, a distance information of each of a plurality of base stations for a terminal device; determining, based on a plurality of distance information, a first position information of the terminal device in a first reference system determined based on the plurality of base stations; and determining a positioning information of the terminal device for a target object based on the first position information and a position information of the target object, where the position information of the target object is determined from a tomography result.

IPC Classes  ?

• H04W 64/00 - Locating users or terminals for network management purposes, e.g. mobility management
• G06T 7/70 - Determining position or orientation of objects or cameras

Abstract

Provided are a system and a method for positioning a suspected article. The system includes a truss indicating mechanism defining a coordinate system having X, Y and Z directions perpendicular to each other. The truss indicating mechanism includes a first direction moving rail disposed on a truss body in one of the three directions; a second direction moving rail movably disposed on the first direction moving rail in a another of the three directions, the second direction moving rail is movable in the first direction relative to the first direction moving rail; and a ranging indicating device movably disposed on the second direction moving rail, the ranging indicating device is configured to be movable in the second direction relative to the second direction moving rail, and is configured to feed back position information of the suspected article in a to-be-inspected cargo by using coordinate information of the coordinate system.

IPC Classes  ?

• B65G 43/00 - Control devices, e.g. for safety, warning or fault-correcting
• G01V 5/226 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays using tomography

Abstract

Use of Ube2f, Cul5, or Rnf7 in preventing and/or treating infections. Provided is any one of the following uses of a reagent targeting the Ube2f gene, the Cul5 gene, or the Rnf7 gene or an expression product thereof: (i) use in preparing a product for preventing and/or treating infections; (ii) use in preparing a product for enhancing anti-infection ability of immune cells; and (iii) use in preparing a product for preventing and/or reversing immune cell depletion.

IPC Classes  ?

• A61K 35/17 - LymphocytesB-cellsT-cellsNatural killer cellsInterferon-activated or cytokine-activated lymphocytes
• A61K 48/00 - Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseasesGene therapy
• A61K 40/11 - T-cells, e.g. tumour infiltrating lymphocytes [TIL] or regulatory T [Treg] cellsLymphokine-activated killer [LAK] cells
• A61P 31/00 - Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics

Abstract

Provided in the present disclosure are a vertical dynamic random access memory (DRAM) array structure having double-layer word lines, and a manufacturing method therefor. The DRAM array structure comprises a plurality of DRAM unit structures, which are arranged in an array. The DRAM array structure according to the present disclosure comprises: a substrate; first storage capacitors of DRAM unit structures in odd-numbered columns or even-numbered columns, which first storage capacitors are arranged on the substrate; first bit lines of DRAM unit structures in even-numbered columns or odd-numbered columns, which first bit lines are arranged above the first storage capacitors; gating transistors of the DRAM unit structures, which gating transistors are arranged on the first storage capacitors and the first bit lines, wherein the gating transistors of DRAM unit structures in adjacent rows share a first layer of word lines and a second layer of word lines; second bit lines of the DRAM unit structures in the odd-numbered columns or the even-numbered columns, which second bit lines are arranged on the gating transistors; and second storage capacitors of the DRAM unit structures in the even-numbered columns or the odd-numbered columns, which second storage capacitors are arranged above the second bit lines. By means of the DRAM array structure and the manufacturing method therefor according to the present disclosure, further size scaling can be realized.

IPC Classes  ?

• H10B 12/00 - Dynamic random access memory [DRAM] devices

Abstract

Provided in the present disclosure are a dynamic random access memory (DRAM) unit structure and an operation method therefor, and a DRAM array structure and an operation method and manufacturing method therefor. The DRAM unit structure according to the present disclosure comprises: a storage capacitor, which comprises a first electrode, and a second electrode connected to a source line; and a gating transistor, which comprises: a vertically extending active region, comprising a first source/drain region, a channel region and a second source/drain region, which are sequentially arranged from bottom to top in a vertical direction, wherein one of the first source/drain region and the second source/drain region is connected to a bit line, and the other one of the first source/drain region and the second source/drain region is connected to the first electrode of the storage capacitor; and a first gate structure and a second gate structure, wherein the first gate structure is arranged in the vertical direction on a first side of the channel region, and the second gate structure is arranged in the vertical direction on a second side of the channel region, which second side is opposite the first side, and the first gate structure and the second gate structure are staggered from each other in the vertical direction and have no overlapping region. By means of the DRAM unit structure and the operation method therefor according to the present disclosure, a leakage current of a gating transistor can be reduced, thereby improving the switching characteristics.

IPC Classes  ?

• H10B 12/00 - Dynamic random access memory [DRAM] devices

Abstract

The present disclosure provides a dynamic random-access memory (DRAM) cell structure and an operation method therefor, and a DRAM array structure, an operation method therefor and a manufacturing method therefor. The DRAM cell structure of the present disclosure comprises: a storage capacitor, comprising a first electrode and a second electrode connected to a source line; and a gating transistor, comprising: an active region which extends vertically and comprises a first source/drain region, a channel region, and a second source/drain region sequentially arranged from bottom to top in a vertical direction, wherein one of the first source/drain region and the second source/drain region is connected to a bit line, and the other is connected to the first electrode of the storage capacitor; and a first gate structure and a second gate structure, wherein the first gate structure is provided on a first side of the channel region in the vertical direction, the second gate structure is provided on a second side of the channel region opposite to the first side in the vertical direction, and the first gate structure and the second gate structure are staggered from each other in the vertical direction and have an overlapping region. According to the DRAM cell structure and the operation method therefor of the present disclosure, leakage current of the gating transistor can be reduced, so that the switching characteristic is improved.

IPC Classes  ?

• H10B 12/00 - Dynamic random access memory [DRAM] devices

Abstract

A power supply module includes a capacitor module, a signal acquisition module, a module controller and a communication module. The capacitor module includes a supercapacitor, a charging circuit and a discharging circuit, where the charging circuit is configured to charge the supercapacitor, and the discharging circuit is configured to discharge a magnet in a magnetic confinement fusion apparatus via a bus. The signal acquisition module is configured to acquire a state signal of the capacitor module. The module controller is configured to control a charging-discharging state of the capacitor module and monitor the capacitor module based on the state signal. The communication module is configured to communicate with a module controller in another power supply module or a main controller in a power supply system. The power supply system is formed by multiple power supply modules and is configured to supply power to the magnet.

IPC Classes  ?

• G21B 1/21 - Electric power supply systems, e.g. for magnet systems
• G21B 1/05 - Thermonuclear fusion reactors with magnetic or electric plasma confinement
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H02J 7/34 - Parallel operation in networks using both storage and other DC sources, e.g. providing buffering

Abstract

Disclosed is a use of a POU2F2 protein or a mutant thereof in prevention and treatment of infections. Provided is any one of the following uses of the POU2F2 protein or the mutant thereof, a nucleic acid molecule encoding the POU2F2 protein or the mutant thereof, or a promoter thereof: (A) a use in preparation of a product for prevention and/or treatment of infectious diseases and/or infection-related diseases and/or symptoms; (B) a use in preparation of a product for enhancing the anti-infective capability of immune cells; and (C) a use in preparation of a product for prevention and/or reversal of immune cell depletion.

IPC Classes  ?

• C12N 5/0784 - Dendritic cellsProgenitors thereof
• C12N 15/11 - DNA or RNA fragmentsModified forms thereof
• C12N 15/113 - Non-coding nucleic acids modulating the expression of genes, e.g. antisense oligonucleotides
• C07K 14/47 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans from vertebrates from mammals
• A61K 48/00 - Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseasesGene therapy
• A61K 31/7088 - Compounds having three or more nucleosides or nucleotides

Abstract

The present invention relates to the technical field of computers, and in particular to a light field aberration correction method and device, an electronic device, and a storage medium. The method comprises: obtaining current light field data; inputting the current light field data into a light field aberration correction network based on an implicit space, the light field aberration correction network then outputting the light field aberration of the current light field data and denoised current light field data; and correcting the light field aberration of the denoised current light field data. In this way, the following problems in the prior art are solved: additional optical hardware support being required for light field aberration correction, and slowed iteration speed due to high hardware requirements; inaccurate modeling due to long backend computation time; and poor real-time performance.

IPC Classes  ?

• G06T 5/90 - Dynamic range modification of images or parts thereof

Abstract

The present disclosure provides a method for manufacturing a vertical dynamic random access memory (DRAM) array structure having double-layer word lines. The DRAM array structure comprises a plurality of DRAM cell structures arranged in an array. The method for manufacturing the DRAM array structure according to the present disclosure comprises: providing a stop layer and an active layer on a base layer; forming in the active layer a plurality of bit line isolation grooves extending along a column direction to limit the size of an active region of each DRAM cell structure in a row direction; forming in the active layer a plurality of word line grooves extending in the row direction to limit the size of the active region of each DRAM cell structure in the column direction, wherein a first layer of word lines and a second layer of word lines are formed in the plurality of word line grooves; forming a storage capacitor or a bit line at one end of the active region of each DRAM cell structure; turning over the DRAM array structure and removing the base layer and the stop layer; and forming a bit line or a storage capacitor at the other end of the active region of each DRAM cell structure.

IPC Classes  ?

• H10B 12/00 - Dynamic random access memory [DRAM] devices

Abstract

The present disclosure provides a dynamic random access memory (DRAM) cell structure and an operation method therefor, a DRAM array structure and an operation method therefor, and a manufacturing method. The DRAM cell structure according to the present disclosure comprises: a storage capacitor, comprising a first electrode, and a second electrode connected to a source line; and a selection transistor comprising: a vertically extending active region, comprising a first source/drain region, a channel region and a second source/drain region, arranged in sequence from bottom to top along a vertical direction, one of the first source/drain region and the second source/drain region being connected to a bit line, and the other being connected to the first electrode of the storage capacitor; and first to fourth gate structures, the first gate structure and the second gate structure being arranged from bottom to top along the vertical direction at a first side of the channel region, and the third gate structure and the fourth gate structure being arranged from bottom to top along the vertical direction at a second side of the channel region opposite the first side. On the basis of the DRAM cell structure and the operation method thereof of the present disclosure, selection transistor leakage current can be reduced, thereby improving switching characteristics.

IPC Classes  ?

• H10B 12/00 - Dynamic random access memory [DRAM] devices
• G11C 5/02 - Disposition of storage elements, e.g. in the form of a matrix array

Abstract

The present disclosure provides a processing-in-memory unit and an operation method, a processing-in-memory array and a processing-in-memory circuit. The processing-in-memory unit comprises four weight units, wherein each weight unit comprises a memristor element and a switch element, and the switch element is electrically connected to the memristor element; a switch element of a first weight unit is electrically connected to a switch element of a fourth weight unit to receive a first word line signal; a switch element of a second weight unit is electrically connected to a switch element of a third weight unit to receive a second word line signal; the switch element of the first weight unit is electrically connected to the switch element of the third weight unit to receive a first source line signal; the switch element of the second weight unit is electrically connected to the switch element of the fourth weight unit to receive a second source line signal; and the four switch elements are electrically connected to each other. According to the processing-in-memory unit, a differential structure is formed by using the four weight units, so that the calculated current varies in direct proportion to an input signal, and the additional overhead of a peripheral circuit is effectively reduced.

IPC Classes  ?

• G11C 13/00 - Digital stores characterised by the use of storage elements not covered by groups , , or

Abstract

A non-woven fabric composite membrane material, and a preparation method therefor and a use thereof. The non-woven fabric composite membrane material has a three-dimensional network structure, and the membrane material is composed of ultra-long carbon nanotubes and a high polymer membrane, wherein the ultra-long carbon nanotubes are loaded on the fiber surface of the high polymer membrane, and/or a self-supporting network formed by the ultra-long carbon nanotubes is deposited in pores of the high polymer membrane. The ultra-long carbon nanotubes and polyolefin are prepared into a composite membrane material by means of an in-situ composite non-woven fabric processing technology as a lithium battery separator, and by means of excellent conductivity, mechanical properties and thermal stability of the carbon nanotubes, the composite membrane material effectively inhibits the heat shrinkage of polyolefin separators and increases the separator breaking temperature while improving the ion transport properties, thereby improving the mechanical properties of polyolefin fiber membranes and the holding capacity of polyolefin fiber membranes in an electrolyte, and improving the safety and the power density of electric vehicles.

IPC Classes  ?

• D04H 1/4242 - Carbon fibres
• H01M 10/052 - Li-accumulators
• D04H 1/4291 - Olefin series

Abstract

Disclosed in the present invention are a linear cultural heritage data collection method and apparatus based on unmanned aerial vehicle remote sensing. The method comprises: establishing digital twin precision systems; determining, on a satellite map, measurement ranges for different measurement objects of cultural heritages; determining data collection parameters of an unmanned aerial vehicle remote sensing device combination for each measurement object; determining a flight height on the basis of the minimum ground resolution corresponding to each measurement object and the data collection parameters; performing flight task planning on each measurement object to obtain a task planning result; obtaining image data collected by the unmanned aerial vehicle remote sensing device combination, and processing the image data to generate a two-dimensional digital result and a three-dimensional digital result, wherein the image data is obtained by means of the unmanned aerial vehicle remote sensing device combination performing data collection on linear cultural heritages according to the data collection parameters, the flight height and the task planning result; and constructing digital twin models with different levels of precision and forming a linear cultural heritage digital twin. The present invention can achieve high data collection efficiency and high data quality.

IPC Classes  ?

• G06V 20/13 - Satellite images

Abstract

The present application relates to the technical field of computational imaging, and in particular to a scanning light field self-supervised network denoising method and apparatus, an electronic device, and a storage medium. The method comprises: obtaining scanning light field data; preprocessing the scanning light field data to obtain preprocessed data; and constructing a self-supervised denoising network on the basis of the preprocessed data until a preset iteration stop condition is reached, and thereby obtaining a final self-supervised denoising network that is used to perform scanning light field self-supervised network denoising. In this way, the invention solves problems in the prior art such as limited data availability due to reliance on paired high-quality data having the same or similar content, which in turn increases data acquisition difficulty and leads to increased cost; and the inability to perform denoising with single-frame light field images due to reliance on temporal information and the need for information from multiple frames, which in turn leads to poor responsiveness and reduced adaptability in practical applications.

IPC Classes  ?

• G06T 5/70 - DenoisingSmoothing
• G06N 3/045 - Combinations of networks
• G06N 3/084 - Backpropagation, e.g. using gradient descent
• G06N 3/0895 - Weakly supervised learning, e.g. semi-supervised or self-supervised learning

Abstract

The invention belongs to the field of polymers, and relates to biaxially oriented polypropylene dielectric film, a modified polypropylene material and use thereof. The preparation raw materials of the biaxially oriented polypropylene dielectric film comprise a modified polypropylene grafted with an alkenyl-containing functional monomer. The modified polypropylene grafted with an alkenyl-containing functional monomer comprises a structural unit derived from polypropylene as a matrix phase and a structural unit derived from an alkenyl-containing functional monomer as a dispersion phase. The ash content of the modified polypropylene grafted with an alkenyl-containing functional monomer is less than 50 ppm. In the modified polypropylene grafted with an alkenyl-containing functional monomer, the mass ratio of the structure unit which is derived from an alkenyl-containing functional monomer and in a grafted state to the structure unit which is derived from an alkenyl-containing functional monomer and in a self-polymerization state is greater than or equal to 1.0. D50 of the dispersion phase is less than 450 nm. The biaxially oriented polypropylene dielectric film of the present invention can keep good dielectric performance and energy storage performance at a relatively high working temperature, and is suitable for high-temperature and high-operation field intensity working conditions.

IPC Classes  ?

• B29C 55/12 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets multiaxial biaxial
• B32B 27/32 - Layered products essentially comprising synthetic resin comprising polyolefins
• C08F 212/08 - Styrene
• C08F 222/06 - Maleic anhydride
• C08F 230/08 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal containing silicon
• C08F 255/02 - Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group on to polymers of olefins having two or three carbon atoms
• C08J 5/18 - Manufacture of films or sheets
• H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes

Abstract

A membrane electrode for the preparation of hydrogen peroxide by means of oxygen reduction, a preparation method therefor, and a membrane electrode reactor. The membrane electrode comprises a cathode oxygen reduction electrode, a cation exchange membrane and an anode oxygen evolution electrode, which are stacked, wherein the cation exchange membrane is located between the cathode oxygen reduction electrode and the anode oxygen evolution electrode, and every two of the cathode oxygen reduction electrode, the cation exchange membrane and the anode oxygen evolution electrode are physically connected; the cathode oxygen reduction electrode comprises a cathode porous substrate layer and a cathode active layer, the cathode active layer comprising a cathode catalyst and a cation regulating and controlling material; and the anode oxygen evolution electrode comprises an anode porous substrate layer and an anode active layer, the anode active layer comprising an anode catalyst. The membrane electrode is suitable for the preparation of hydrogen peroxide by means of oxygen reduction, and has good hydrogen peroxide selectivity and high Faraday efficiency.

IPC Classes  ?

• C25B 11/032 - Gas diffusion electrodes
• C25B 9/23 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
• C25B 1/30 - Peroxides
• C25B 11/075 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of a single catalytic element or catalytic compound
• C25B 11/091 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of at least one catalytic element and at least one catalytic compoundElectrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of two or more catalytic elements or catalytic compounds
• C25B 11/077 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of a single catalytic element or catalytic compound the compound being a non-noble metal oxide
• C25B 11/052 - Electrodes comprising one or more electrocatalytic coatings on a substrate

Abstract

A human-computer interaction method and apparatus, a device, a storage medium and a program product. The human-computer interaction method comprises: in response to dialogue information of a user, obtaining from a knowledge database a knowledge text corresponding to the dialogue information, wherein the knowledge database is constructed by performing reliability processing on basic corpus in the field to which the dialogue information belongs and on the basis of the corpus obtained after the reliability processing; and outputting reply information for the dialogue information according to the knowledge text corresponding to the dialogue information.

IPC Classes  ?

• G06F 16/332 - Query formulation

Abstract

An X-band small-focus accelerator for non-destructive testing is provided, including: a magnetron used to generate microwaves; an accelerating tube used to accelerate electrons, where the accelerating tube is an X-band accelerating tube; a microwave system connected between the magnetron and the accelerating tube, and used to feed the microwaves generated by the magnetron into the accelerating tube; an electron gun connected to the accelerating tube, and used to emit an electron beam into the accelerating tube; and an electron gun power supply used to supply power to the electron gun, where the accelerating tube, the microwave system, the magnetron and the electron gun power supply are arranged in sequence in a front-rear direction of the accelerator to determine a length of the accelerator.

IPC Classes  ?

• H05H 9/02 - Travelling-wave linear accelerators
• G01N 23/02 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material
• H05H 7/22 - Details of linear accelerators, e.g. drift tubes

Abstract

An intelligent data-driven adaptive joint observation method and apparatus, and a vehicle and a medium. The method comprises: acquiring a yaw rate signal, wheel speed signals, a steering angle signal, a longitudinal acceleration signal, a lateral acceleration signal, driving torque signals and braking torque signals of a vehicle, using one or more signals as data features, and using data features within preset time step sizes to form first to third input features (S101); compensating for wheel speeds on the basis of a yaw rate and a steering angle (S102); calculating a longitudinal reference vehicle speed on the basis of the compensated wheel speeds and a longitudinal acceleration (S103); estimating a lateral reference vehicle speed measurement value on the basis of the first input feature, and respectively estimating a noise covariance of a longitudinal reference vehicle speed measurement value and a noise covariance of the lateral reference vehicle speed measurement value on the basis of the second input feature and the third input feature (S104); and determining a joint observation weight of the longitudinal reference vehicle speed measurement value and lateral reference vehicle speed measurement value on the basis of the noise covariances, and performing joint observation on a longitudinal reference vehicle speed estimation value and a lateral reference vehicle speed estimation value on the basis of the joint observation weight, so as to obtain a vehicle body sideslip angle estimation value (S105). Thus, the problems in the related art such as the applicability and robustness being relatively poor due to the limitations of an MBD method and a DDD method, the accuracy of an observation result being relatively low due to an inaccurate measured value, and the application being limited due to the requirement for a large amount of data and the presence of a black box feature are solved.

IPC Classes  ?

• B60W 40/103 - Side slip angle of vehicle body

Abstract

A gallium nitride surface acoustic wave resonator comprises a substrate comprising an epitaxial growth surface; a carbon nanotube layer located on the substrate and comprising a plurality of holes, and the epitaxial growth surface of the substrate exposed through the plurality of holes; a gallium nitride layer located on the carbon nanotube layer; an interdigital transducer located on the gallium nitride layer; and two reflection grating units respectively located on both sides of the interdigital transducer.

IPC Classes  ?

• H03H 9/02 - Networks comprising electromechanical or electro-acoustic elementsElectromechanical resonators Details
• H03H 9/145 - Driving means, e.g. electrodes, coils for networks using surface acoustic waves
• H03H 9/25 - Constructional features of resonators using surface acoustic waves

Abstract

A method to treat carbon nanotube film surface, comprises: S1: providing a carbon nanotube film, and laying the carbon nanotube film on a surface of a substrate, wherein the carbon nanotube film comprises a plurality of catalyst particles; S2: annealing the carbon nanotube film; S3: treating the carbon nanotube film with an inorganic acid, and the plurality of metal catalyst particles in the carbon nanotube film react with the inorganic acid to generate inorganic salts; and S4: washing and annealing the carbon nanotube film with the inorganic salts to remove the inorganic salts.

IPC Classes  ?

• C23C 16/56 - After-treatment
• C23C 16/26 - Deposition of carbon only

Abstract

The present disclosure provides a computer implemented method for training a PINN for predicting physical quantities of an object, comprising: discretizing PDEs, which are formulated to characterize a physical system related to the object with structural quantities and the physical quantities of the object, on a mesh including a plurality of points into a linear equation, the linear equation is formulated to characterize the physical system with a first discretization matrix and the physical quantities at the plurality of points of the mesh; determining a preconditioning matrix based on the first discretization matrix; predicting values of the physical quantities of the object at the plurality of points of the mesh by the PINN; obtaining a loss based on the predicted values of the physical quantities of the object and the preconditioning matrix; updating learnable parameters of the PINN based on the loss.

IPC Classes  ?

• G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model

Abstract

The present application relates to an optoelectronic fusion reconfigurable analog intelligent computing system and a task learning method therefor. The system comprises: an optical analog computing module and an electrical analog computing module, wherein the optical analog computing module is used for performing feature extraction and dimensionality reduction processing on an inputted optical analog signal to obtain an optical feature signal that meets a preset dimension, and the electrical analog computing module is used for converting the optical feature signal into an electrical analog signal and performing computation on the electrical analog signal to obtain an analog computation result. Therefore, by establishing a simulation model, determining a training set on the basis of a current learning task, performing numerical simulation training on the optoelectronic fusion analog computing system by using machine learning and other algorithms, and continuously optimizing parameters during the training to finally successfully complete the current learning task, the present application solves the problem of the limitations of an all-optical artificial neural network and a digital computing processor in completing a machine learning task and realizes advantages of high speed, low energy consumption, high robustness, and reconfigurability.

IPC Classes  ?

• G06F 18/214 - Generating training patternsBootstrap methods, e.g. bagging or boosting

Abstract

A rock quality determination method and apparatus, and a computer device and a storage medium. The rock quality determination method comprises: acquiring a rock outcrop image; inputting the rock outcrop image into an intelligent identification model for fracture network trace identification, so as to obtain a fracture network trace map corresponding to the rock outcrop image; classifying fracture nodes in the fracture network trace map, so as to obtain types of the fracture nodes; and on the basis of the types of the fracture nodes, determining rock quality parameters corresponding to the rock outcrop image.

IPC Classes  ?

• G06T 7/60 - Analysis of geometric attributes

Abstract

A subject analysis method and apparatus, and a computer device, a storage medium and a computer program product. The subject analysis method comprises: acquiring a target image sequence, clinical data and an image processing model, wherein the target image sequence is obtained by means of performing image sequence conversion on an image to be subjected to detection, and the image processing model includes a pre-trained feature extractor and a trained classification sub-model; performing feature extraction on the target image sequence by means of the feature extractor, and performing analysis processing on a feature extraction result by means of the classification sub-model, so as to obtain a target analysis result; and on the basis of a large-scale language analysis model, performing subject analysis on the target analysis result and the clinical data, so as to obtain a subject analysis result.

IPC Classes  ?

• G16H 50/20 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for computer-aided diagnosis, e.g. based on medical expert systems
• G16H 30/20 - ICT specially adapted for the handling or processing of medical images for handling medical images, e.g. DICOM, HL7 or PACS

Abstract

Provided in the present application are an extra high-speed train arrangement method and apparatus taking passenger demands under a time window constraint into consideration. The method comprises: constructing a first extra train arrangement optimization model with the goal of maximizing profits, and constructing a second extra train arrangement optimization model with the goal of meeting passenger travel demands to the greatest possible extent; determining constraint conditions, and acquiring overflow passenger travel demands and existing train operation data, wherein the passenger travel demands comprise riding time windows and riding departure and arrival demands, and the existing train operation data comprises train routes, a train stop scheme set and train section operation times; and on the basis of the constraint conditions, the passenger travel demands and the train operation data, respectively solving the first extra train arrangement optimization model and the second extra train arrangement optimization model, so as to obtain a first extra train arrangement scheme and a second extra train arrangement scheme. Therefore, an extra train arrangement scheme which takes economic benefits into consideration and meets passenger travel demands is achieved.

IPC Classes  ?

• G06Q 10/0631 - Resource planning, allocation, distributing or scheduling for enterprises or organisations
• B61L 27/10 - Operations, e.g. scheduling or time tables
• G06Q 50/40 - Business processes related to the transportation industry

Abstract

Provided in the embodiments of the present disclosure are a memory and a storage apparatus. The memory comprises a base substrate, a first inverter and a third transistor. The first inverter is arranged on the base substrate and comprises a first transistor and a second transistor stacked in the direction perpendicular to the base substrate. The first transistor and the second transistor comprise a common first gate. The first transistor further comprises a first source and a first drain arranged on the side of the first gate close to the base substrate. The second transistor further comprises a second source and a second drain arranged on the side of the first gate away from the base substrate. The first drain and the second drain are electrically connected by means of a first via hole. The first source is configured to receive a first power supply signal, and the second source is configured to receive a second power supply signal. The third transistor comprises a second gate, a third source and a third drain, the second gate being electrically connected to a first word line, the third source being electrically connected to a first bit line, and the third drain being electrically connected to the first gate. The memory occupies a small area, and can be easily manufactured by means of a back-end-of-line process.

IPC Classes  ?

• G11C 11/4074 - Power supply or voltage generation circuits, e.g. bias voltage generators, substrate voltage generators, back-up power, power control circuits
• G11C 11/408 - Address circuits
• G11C 11/4094 - Bit-line management or control circuits
• G11C 11/4097 - Bit-line organisation, e.g. bit-line layout, folded bit lines

Abstract

Provided is a CT device, being related to the technical field of radiation scanning. The CT device comprises a rack; multiple supporting apparatuses arranged on the rack; a rotatable portion, the rotatable portion being able to rotate around a rotation axis when driven by a driving wheel, and the rotatable portion being jointly supported by the multiple supporting apparatuses during the rotation process; a scanning apparatus arranged on the rotatable portion, the scanning apparatus being used for scanning an object to be examined; an axial limiting mechanism comprising a first pressing roller set and a second pressing roller set, wherein the first pressing roller set and the second pressing roller set are separately arranged on the end faces on two sides of the rotatable portion in the direction of the rotation axis; the first pressing roller set and the second pressing roller set each comprise n pressing rollers, n being an integer larger than 3, and at least a part of the outer circumferential face of each pressing roller is in contact with the end face of the rotatable portion so as to limit the movement of the rotatable portion in the direction of the rotation axis.

IPC Classes  ?

• G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
• G01V 5/226 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays using tomography

Abstract

The present disclosure relates to a vehicle head avoidance method, apparatus and system, and a computer-readable storage medium. The vehicle head avoidance method comprises: acquiring a vehicle image to be subjected to detection which is collected by means of a visible-light area-array camera; acquiring a focal length of the camera by means of correcting intrinsic and extrinsic parameters of the camera; processing said vehicle image to obtain a pixel size of a vehicle head; acquiring the distance between the camera and the vehicle head; acquiring an actual size of the vehicle head on the basis of the focal length of the camera, the distance between the camera and the vehicle head, and the pixel size of the vehicle head; and performing vehicle head avoidance on the basis of the actual size of the vehicle head. In the present disclosure, a linear-array image collection device is replaced with a visible-light area-array camera, thereby reducing the use cost and installation cost, and reducing the occupied area.

IPC Classes  ?

• G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
• G06T 7/80 - Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
• G06T 7/11 - Region-based segmentation

Abstract

A radiation detection system (700), comprising a first ray scanning device (106) and a second ray scanning device (107). The first ray scanning device (106) comprises a first target point (1061), which emits rays for scanning a first area (1081) of an object (108). The second ray scanning device (107) comprises a second target point (1071), wherein the second target point (1071) is closer to the ground (701) than the first target point (1061), and the second target point (1071) emits rays for scanning a second area (1082) of the object (108), at least part of the second area (1082) being located out of the first area (1081), and at least part of the second area (1082) being located below the first area (1081) in a vertical direction. Further provided is a radiation detection apparatus (800), comprising a bearing device, which comprises a door-type structure which defines a detection channel (802), wherein the radiation detection system (700) is mounted on the bearing device and performs scanning on a stationary or moving object (108) in the detection channel (802).

IPC Classes  ?

• G01V 5/22 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
• G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material

Abstract

A millimeter-wave imaging device, comprising: a first millimeter-wave transceiving array (100), which comprises a row of first millimeter-wave transmitting antennas (100T) and a row of first millimeter-wave receiving antennas (100R); and a second millimeter-wave transceiving array (200), which comprises a row of second millimeter-wave transmitting antennas (200T) and a row of second millimeter-wave receiving antennas (200R), wherein the first millimeter-wave transceiving array (100) and the second millimeter-wave transceiving array (200) are respectively configured to transmit and receive millimeter waves to construct a first holographic image and a second holographic image of an object to be inspected. The millimeter-wave imaging device is further configured such that the second millimeter-wave receiving antenna (200R) receives millimeter waves of the first millimeter-wave transmitting antenna (100T) to form a first transmission image, or such that the first millimeter-wave receiving antenna (100R) receives millimeter waves of the second millimeter-wave transmitting antenna (200T) to form a second transmission image. The present application further relates to a security inspection device and a security inspection method.

IPC Classes  ?

• G01V 8/00 - Prospecting or detecting by optical means
• G01V 3/12 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation operating with electromagnetic waves

Abstract

An analysis and test device and a spent fuel reprocessing system. The analysis and test device comprises: a base (1); a shielding body (7), which is fixed to the base (1) and comprises a main body portion (71) and a sealing portion (72), the sealing portion (72) being configured to seal an opening (711) in the main body portion (71) and being capable of being opened and closed; an accelerator assembly (3) and a radiation source (4), wherein the accelerator assembly (3) is located on one side of the shielding body (7) in a first direction (x) and is movably mounted on the base (1) in the first direction (x), and the radiation source (4) is fixed to one side of the accelerator assembly (3) in the first direction (x) and is located in the shielding body (7); a measurement assembly (5), which is fixed in the shielding body (7), is located, in the first direction (x), on the side of the radiation source (4) away from the accelerator assembly (3), and is configured to accommodate a test object, so as to implement a test mode; a calibration assembly (6), which is detachably mounted in the shielding body (7) by means of the opening (711), is located, in the first direction (x), on the side of the radiation source (4) away from the accelerator assembly (3), and is configured to accommodate a calibration object, so as to implement a calibration mode; and a detector assembly (8), which is arranged on one side of the shielding body (7) in a second direction (y) and is movably mounted on the base (1) in the first direction (x).

IPC Classes  ?

• G01N 23/09 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the radiation being neutrons

Abstract

The present disclosure discloses a blockchain consensus method and a blockchain replica apparatus, and provides a cBFT protocol with a plurality of different voting thresholds, which may reduce a communication complexity of the protocol, reduce a consensus agreement time, improve a throughput of a consensus system, and simultaneously reduce sensitivity of the protocol to a timer.

IPC Classes  ?

• H04L 41/00 - Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
• H04L 67/104 - Peer-to-peer [P2P] networks

Abstract

Provided are a method and an apparatus for determining an energy calibration of a radiation detector, a device, and a medium. The method includes: acquiring (S110) a background energy spectrum of a plurality of known nuclides, where the background energy spectrum is obtained by the radiation detector detecting the plurality of known nuclides; performing (S120) differential processing on the background energy spectrum to obtain a channel address-difference diagram, where the channel address-difference diagram includes a plurality of valid peak information determined from a plurality of full-energy peak information; determining (S130) a target coefficient according to the channel address-difference diagram, where the target coefficient characterizes a calibration coefficient in initial energy channel address function; and determining (S140) a target energy channel address function according to the channel address-difference diagram and the initial energy channel address function, where the target energy channel address function characterizes the energy calibration of the radiation detector. The apparatus for determining an energy calibration of a radiation detector includes an acquisition module (610), a differencing module (620), a first determination module (630), and a second determination module (640).

IPC Classes  ?

• G01T 7/00 - Details of radiation-measuring instruments

Abstract

Traditional Chinese medicine Ecklonia kurome and ingredients thereof such as fucoidin and brown algae polyphenol can ameliorate high fructose-induced colitis associated colon cancer, which is mainly demonstrated by significant reduction in tumor load after drug administration. Thus, a medication regimen is provided for patients with clinical colitis associated colorectal cancer and for the prevention of potential hazards caused by a high-fructose diet.

IPC Classes  ?

• A61K 36/03 - Phaeophycota or phaeophyta (brown algae), e.g. Fucus
• A61K 31/715 - Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkagesDerivatives thereof, e.g. ethers, esters
• A61K 31/05 - Phenols
• A61P 35/00 - Antineoplastic agents

Abstract

A rock mass structure network connectivity index determining method and apparatus, and a device. The rock mass structure network connectivity index determining method comprises: identifying cracks in a target rock to obtain a crack rock image of the target rock; determining a surface crack density, a surface crack strength, and a surface crack intersection density of the target rock on the basis of the crack rock image; and determining a network connectivity index of the target rock on the basis of the surface crack density, the surface crack strength, and the surface crack intersection density.

IPC Classes  ?

• G06V 20/10 - Terrestrial scenes

Abstract

The embodiments of the present specification relate to a method and apparatus for training a risk identification model. The method comprises: first, acquiring a first sample set having hard labels and a second sample set having no label, wherein any sample set comprises transaction samples, and each hard label indicates whether a transaction is a risk transaction; then, performing sample enhancement on the first sample set on the basis of an interpolation method, and using the enhanced first sample set to perform training, so as to obtain a first model; subsequently, inputting, into the first model, transaction samples in a complete sample set formed by the first sample set and the second sample set, so as to obtain soft labels concerning risk prediction; finally, inputting the transaction samples in the first sample set into a second model, and determining a first loss on the basis of the hard labels; inputting the transaction samples in the complete sample set into the second model, and determining a second loss on the basis of the soft labels; and training the second model on the basis of a total predicted loss determined by means of the first loss and the second loss, wherein the second model is used for predicting whether each transaction is a risky transaction.

IPC Classes  ?

• G06F 18/214 - Generating training patternsBootstrap methods, e.g. bagging or boosting

Abstract

Disclosed in the present invention is a primary and secondary double-row shallow groove mechanical seal end surface structure suitable for laser processing, comprising a centro-symmetrically distributed double-row groove structure arranged on a seal ring end surface. The double-row groove structure comprises multiple fan-shaped main grooves and multiple reverse grooves; the multiple fan-shaped main grooves are located on a high-pressure side of the seal ring end surface; each fan-shaped main groove converges from the high-pressure side to a low-pressure side; each fan-shape main groove comprises multiple stepped grooves distributed from the high-pressure side to the low-pressure side and suitable for laser processing; the depth of each fan-shaped main groove increases at equal intervals from the high-pressure side to the low-pressure side; the multiple reverse grooves are located on the low-pressure side of the seal ring end surface; and the depth of each reverse groove remains unchanged.

IPC Classes  ?

• F16J 15/40 - Sealings between relatively-moving surfaces by means of fluid

Abstract

A dispersion regulation and control method and apparatus, a device, a storage medium, and a program product. The dispersion regulation and control method comprises: on the basis of a target wavelength and a target dispersion adjustment amount, selecting a micro/nano fiber having a preset diameter and a preset length, wherein two ends of the micro/nano fiber are seamlessly connected to conventional fibers, respectively; and under the condition that the two ends of the micro/nano fiber are fixed to support elements, adjusting the distance between the support elements at the two ends of the micro/nano fiber to perform a stretching operation on the micro/nano fiber, so as to implement dispersion regulation and control.

IPC Classes  ?

• G02B 6/02 - Optical fibres with cladding
• G02B 6/255 - Splicing of light guides, e.g. by fusion or bonding
• G02B 6/38 - Mechanical coupling means having fibre to fibre mating means

Abstract

The present disclosure provides a saddle region determination method and apparatus, an electronic device, and a storage medium. The method comprises: obtaining acquiring a digital elevation model of a geographic region, wherein the digital elevation model comprises: a plurality of initial grids; respectively taking each initial grid as a central grid, determining N*N initial grids as a target grid area, wherein N is an odd number greater than 1; then respectively determining four initial topographic profile lines along four symmetry axes of the target grid area; then determining a curve parameter of each initial topographic profile line, wherein the curve parameter is used for describing a change in slope of the initial topographic profile line when passing through the central grid; then on the basis of the curve parameter of each initial topographic profile line, determining whether a local geographic region corresponding to the initial grids is a saddle region.

IPC Classes  ?

• G06T 7/60 - Analysis of geometric attributes
• G06T 17/05 - Geographic models
• G06T 17/20 - Wire-frame description, e.g. polygonalisation or tessellation

Abstract

Provided in the present disclosure is a calibration method for performing energy spectrum calibration on a scanning imaging device, which comprises: when an energy spectrum calibration phantom is located in a scanning area formed by rays, obtaining a geometric relationship between a ray source, the energy spectrum calibration phantom, and a detector according to relative positions of the ray source, the energy spectrum calibration phantom, and the detector; collecting rays that pass through the scanning area by means of the detector to obtain real projection data; obtaining a physical attribute of the energy spectrum calibration phantom, wherein the physical attribute is pre-determined according to the material of which the energy spectrum calibration phantom is made or is calculated according to an image reconstruction method; calculating theoretical projection data using a plurality of predetermined basis spectra on the basis of the physical attribute of the energy spectrum calibration phantom and the geometric relationship; performing calibration on an energy spectrum parameter according to the theoretical projection data and the actual projection data, so as to obtain an optimized energy spectrum parameter; and determining the optimized energy spectrum parameter as an energy spectrum calibration parameter.

IPC Classes  ?

• G01N 23/00 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or

Abstract

Provided is a calibration method for calibrating a scanning and imaging device. The calibration method comprises: by means of a detector, collecting rays which have passed through a geometric calibration phantom so as to obtain detector data, the detector data comprising an actual projection position of the rays on the detector after the rays have passed through the geometric calibration phantom; obtaining initial ray source parameters and initial detector parameters; according to the initial ray source parameters, the initial detector parameters, and the positional relationship of the geometric calibration phantom with respect to a ray source and the detector, obtaining a theoretical projection position of the geometric calibration phantom on the detector by means of geometric calculation; constructing an optimization function of the deviation between the actual projection position and the theoretical projection position in terms of the ray source parameters and the detector parameters; and according to the optimization function, determining the ray source parameters and the detector parameters which correspond to the minimum deviation value as optimized ray source parameters and optimized detector parameters, and determining the optimized ray source parameters and the optimized detector parameters as geometric calibration parameters.

IPC Classes  ?

• G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material

Abstract

Provided is a calibration method for calibrating a scanning imaging device, comprising: when a geometric calibration phantom is located in a scanning area formed by rays, executing a geometric calibration step, which comprises: collecting rays that pass through the scanning area by means of a detector to obtain detector data; performing calibration on a ray source parameter and a detector parameter by utilizing the detector data, so as to obtain an optimized ray source parameter and an optimized detector parameter, and determining the optimized ray source parameter and the optimized detector parameter as geometric calibration parameters; and when an energy spectrum calibration phantom is located in a scanning area formed by rays, executing an energy spectrum calibration step, which comprises: collecting rays that pass through the scanning area by means of the detector, and obtaining real projection data related to the energy spectrum phantom; and performing calibration on an energy spectrum parameter according to a geometric relationship and a physical attribute of the energy spectrum calibration phantom by utilizing the actual projection data, so as to obtain an optimized energy spectrum parameter, and determining the optimized energy spectrum parameter as an energy spectrum calibration parameter.

IPC Classes  ?

• G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material

Abstract

Provided in the present disclosure is a neutron poison monitoring apparatus. The neutron poison monitoring apparatus comprises: a container, which is used for accommodating a liquid to be tested that contains a neutron poison; a neutron source, which is configured to emit neutrons to said liquid; a detector, which is configured to detect the number of neutrons and/or the number of photons in said liquid; a multi-channel scaler, which is configured to send to a neutron poison monitoring control apparatus the number of neutrons and/or the number of photons detected by the detector; the neutron poison monitoring control apparatus, which is configured to control the neutron source to emit the neutrons to said liquid, control the detector to detect the number of neutrons or the number of photons in said liquid within a time range after the neutron source is controlled to stop emitting neutrons to said liquid, so as to obtain a plurality of detection values, use a background value to correct each detection value among the plurality of detection values, so as to obtain a plurality of corrected values, and use the plurality of corrected values to determine the concentration of the neutron poison in said liquid; and a shielding device, which is configured to shield external interference received by said liquid and the detector.

IPC Classes  ?

• G01N 23/00 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or

Abstract

A radiation dose measurement apparatus (200) and a radiation dose measurement method. The radiation dose measurement apparatus (200) comprises: an ionization chamber (210), which defines an accommodating space (211), wherein the accommodating space (211) is filled with a gas, and the gas is configured to react with rays entering the accommodating space (211), so as to generate electrons; and N VDMOS devices (100), which are arranged in the accommodating space (211), wherein N is an integer greater than or equal to 1, a change occurs in a source-drain reverse current-voltage curve of at least one of the N VDMOS devices (100) in response to the electrons, and the radiation dose of the rays is obtained by means of the source-drain reverse current-voltage curves before and after the change.

IPC Classes  ?

• G01T 1/02 - Dosimeters

Abstract

A two-dimensional grid mapping method, an apparatus, a device, and a storage medium, which belong to the field of mapping. The two-dimensional grid mapping method comprises: obtaining, in real time, first pose data and second pose data of a robot at the current moment, the first pose data being pose data determined by a two-dimensional lidar, and the second pose data being pose data determined by a combination navigation device, where the pose data determined by the combination navigation device is pose data obtained by merging position data measured by a satellite navigation device and orientation data measured by an inertial measurement unit device (S110); merging the first pose data and the second pose data, and obtaining merged pose data (S120); and constructing a two-dimensional grid map according to the merged pose data (S130).

IPC Classes  ?

• G01C 21/32 - Structuring or formatting of map data
• G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
• G01S 19/47 - Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being an inertial measurement, e.g. tightly coupled inertial

Abstract

Disclosed are a detector apparatus and a ray irradiation apparatus, being related to the technical field of radiation scanning. The detector apparatus comprises a detector box that defines a first accommodating space, one side of the detector box having a first slit for rays to pass through; a shielding assembly being located in the first accommodating space and defining a second accommodating space, one side of the shielding assembly having a second slit for rays to pass through, and the second slit being aligned with the first slit; S detectors being located in the second accommodating space and being configured to detect rays passing through the first slit and the second slit, S being an integer greater than or equal to 1; and a first sealing member being configured to cover the first slit, wherein the first sealing member allows rays to pass through so as to enter the first slit; the first sealing member works in conjunction with the detector box to enable the first accommodating space to form a sealed, waterproof space.

IPC Classes  ?

• G01V 5/22 - Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
• G01N 23/02 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material
• G21F 9/00 - Treating radioactively contaminated materialDecontamination arrangements therefor

Abstract

The present disclosure provides an energy spectrum data readout circuit, an X-ray detector, and a data readout method. The energy spectrum data readout circuit comprises an acquisition circuit and a control circuit. The acquisition circuit comprises: a plurality of sub-channels used for receiving a current pulse signal generated on the basis of an X-ray, and generating a detection signal on the basis of the current pulse signal; a multiplexer connected to the plurality of sub-channels that selects and outputs a detection signal of at least one channel from among the plurality of sub-channels according to a channel selection signal; and a trigger circuit connected to the plurality of sub-channels and is used for generating a global trigger signal according to an over-threshold identifier received from the plurality of sub-channels, and outputting an address of an over-threshold channel according to an address readout request. The control circuit is connected to the acquisition circuit and is used, in response to a trigger signal from the acquisition circuit, for generating a chip selection signal and an address readout request, and providing the signal and request to the acquisition circuit.

IPC Classes  ?

• G01T 1/36 - Measuring spectral distribution of X-rays or of nuclear radiation

Abstract

The present disclosure relates to the technical field of anomaly detection, and provides an anomaly detection method and apparatus, and a computer readable storage medium. The method comprises: acquiring first customs declaration data to be detected, wherein said first customs declaration data comprises a plurality of fields associated with corresponding items and addresses, the plurality of items corresponding to the plurality of fields can form a plurality of item sets, and each item set comprises two items among the plurality of items; calculating an evaluation distance between two addresses associated with the two items in each item set; performing association rule mining on a plurality of pieces of historical second customs declaration data to obtain an evaluation index representing an association relationship between the two items in each item set; using an anomaly detection algorithm to process the evaluation distance and the evaluation index so as to obtain a first result representing whether there is a risk between the two items in each item set or not; and on the basis of the first result, determining whether there is an anomaly in the first customs declaration data or not.

IPC Classes  ?

• G06F 18/2433 - Single-class perspective, e.g. one-against-all classificationNovelty detectionOutlier detection

Abstract

The present disclosure provides a risk detection method and apparatus, and a storage medium. The risk detection method comprises: identifying ingredient content information of an edible commodity that is comprised in customs clearance data, in order to obtain a plurality of ingredient names and corresponding content data; comparing the plurality of ingredient names and the corresponding content data with those in a predetermined food safety standard database to determine a first risk value of the edible commodity; on the basis a food access knowledge base, determining a second risk value of a plurality of pieces of access information of the edible commodity that are comprised in the customs clearance data; acquiring historical risk information of the edible commodity; on the basis of the historical risk information, determining a third risk value of the edible commodity; and on the basis of the first risk value, the second risk value and the third risk value, determining an import risk value of the edible commodity.

IPC Classes  ?

• G06Q 30/018 - Certifying business or products
• G06Q 10/0831 - Overseas transactions
• G06F 16/903 - Querying
• G06F 40/216 - Parsing using statistical methods
• G06F 40/284 - Lexical analysis, e.g. tokenisation or collocates
• G06N 5/022 - Knowledge engineeringKnowledge acquisition
• G06N 3/0442 - Recurrent networks, e.g. Hopfield networks characterised by memory or gating, e.g. long short-term memory [LSTM] or gated recurrent units [GRU]
• G06N 3/0455 - Auto-encoder networksEncoder-decoder networks

Abstract

The present disclosure relates to an analysis and detection apparatus and a spent fuel reprocessing system. The analysis and detection apparatus comprises: a base; a carrying platform movably arranged on the base in a first direction and a second direction perpendicular to each other in a horizontal plane; an accelerator assembly and a radiation source, wherein the radiation source is located on one side of the accelerator assembly in the second direction, and the radiation source is used for receiving radiations emitted by the accelerator assembly to generate particles; a measuring assembly fixedly mounted relative to the base and used for accommodating an object under detection to implement a detection mode; a calibration assembly detachably arranged and used for accommodating a calibration object to implement a calibration mode; a shielding body used for providing radiation protection for the radiation source, the measuring assembly, and the calibration assembly; and a detector assembly arranged on one side of the shielding body in the first direction; wherein the accelerator assembly, the shielding body, and the detector assembly are all arranged on the carrying platform, and the carrying platform is configured to drive the shielding body to reach or leave a protection position in the first direction.

IPC Classes  ?

• G01T 1/16 - Measuring radiation intensity
• G21C 17/06 - Devices or arrangements for monitoring or testing fuel or fuel elements outside the reactor core, e.g. for burn-up, for contamination
• G21F 9/06 - Processing
• G01T 7/00 - Details of radiation-measuring instruments

Abstract

A radiation dose rate control method, which relates to the technology of radiation, and an accelerator (100). The control method is used for an electron linear accelerator (100) comprising a microwave source, an electron gun (102) and an accelerating tube (104). The control method comprises: when an electron linear accelerator (100) outputs a beam, monitoring a first event used for indicating a change of a beam output parameter (S610), wherein the beam output parameter comprises a pulse of an electron gun (102) and a microwave power of a microwave source, and the first event is determined by means of radiation protection requirements; and in response to monitoring the first event, cutting off the pulse of the electron gun (102), and switching a first microwave power of the microwave source to a second microwave power, so that the leakage dose rate of a radiation safety boundary is less than or equal to a first preset threshold (S620), wherein the level of dark current in an accelerating tube (104) under the second microwave power is less than or equal to a second preset threshold. Further provided are a radiation dose rate control apparatus, an accelerator (100), and a radiation apparatus.

IPC Classes  ?

• H05H 9/00 - Linear accelerators

Abstract

This disclosure relates to a mobile radiation detection apparatus, including: a movable mounting bracket; a radiation detector for detecting a radiation type and/or a radiation dose of an object to be detected movably mounted on the movable mounting bracket relative to the movable mounting bracket; an adjustment device provided between the radiation detector and the movable mounting bracket for adjusting a height and/or an angle of the radiation detector relative to the movable mounting bracket; and in detecting the object to be detected, the mobile radiation detection apparatus moves the movable mounting bracket and adjusts the height and/or angle of the radiation detector relative to the movable mounting bracket and the radiation detector approaches and aligns with the object to be detected.

IPC Classes  ?

• G01T 1/24 - Measuring radiation intensity with semiconductor detectors

Abstract

The present application relates to the technical field of non-volatile storage, in particular to a memristor array structure having a NAND-structure and a preparation method therefor. The memristor array structure comprises: a plurality of 1T1R cell structures, the plurality of 1T1R cell structures being arranged into rows and columns and forming the memristor array structure having a NAND-structure; a plurality of 1T1R cell structures located in the same column are connected in series, and 1T1R cell structures at two ends are connected to a second transistor and a third transistor, respectively, a drain of the second transistor being connected to a bit line, and a source of the third transistor being connected to a source line; gates of first transistors of all 1T1R cell structures in the same row are connected to a same word line (WL), gates of second transistors in the same row are connected to a same drain gating line, and gates of third transistors in the same row are connected to a same source gating line. Thus, problems such as existing memristor array structures not being able to be reduced to the theoretical minimum feature area 4F2 of a memristor are solved.

IPC Classes  ?

• G11C 13/00 - Digital stores characterised by the use of storage elements not covered by groups , , or

Abstract

A method, system and apparatus for determining a contaminant control strategy, and a computer device. The method comprises: acquiring water body data at different position points of a contaminated water body, and historical sample water body data for different contamination degrees, and identifying contaminant distribution information of the contaminated water body (S201); collecting water flow information of the contaminated water body, and generating a contaminant control strategy for the contaminated water body on the basis of the water flow information of the contaminated water body and the contaminant distribution information of the contaminated water body (S202); executing the contaminant control strategy, and measuring water body data change information at the different position points (S203); and adjusting the contaminant control strategy for the contaminated water body on the basis of the water body data change information at the different position points, so as to obtain a new contaminant control strategy, replacing the contaminant control strategy with the new contaminant control strategy, iteratively executing the step of executing the contaminant control strategy and measuring water body data change information at the different position points until current water body data at the different position points meets a standard water body condition, and stopping an iterative operation (S204).

IPC Classes  ?

• G05B 19/04 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers

Abstract

A static CT device and a CT examination method. The device comprises one or more sets of examination assemblies, each set of examination assembly comprising: a multi-point distributed source (S) configured to emit radiation beams; a detector (DT) facing the multi-point distributed source to receive the radiation beams emitted by the multi-point distributed source, wherein the multi-point distributed source and the detector define an examination channel; and gratings (G0, G1, G2) arranged in the examination channel between the multi-point distributed source and the detector. The gratings have a periodic structure configured to diffract the radiation beams passing through the gratings to form an interference pattern.

IPC Classes  ?

• A61B 6/03 - Computed tomography [CT]

Abstract

The present disclosure provides a radiation imaging device. The device comprises: a radiation source, configured to emit radiation beams; a detector, configured to receive the radiation beams from the radiation source, wherein the radiation source and the detector define an examination channel; and at least one grating arranged in the examination channel between the radiation source and the detector. The at least one grating has a curved surface or is a groove-shaped surface having a plurality of angled planar sections, and the curved surface or the groove-shaped surface faces the radiation source.

IPC Classes  ?

• A61B 6/03 - Computed tomography [CT]

Abstract

A radiation imaging device and a radiation imaging method. The radiation imaging device comprises: a radiation source (S), an N-row detector (DT) and at least one grating (G), wherein the grating (G) is arranged in an inspection channel defined by the radiation source (S) and the N-row detector (DT) and is located between the radiation source (S) and the N-row detector (DT). Each row of detectors of the N-row detector (DT) extends in the transverse direction of the inspection channel, and the N rows of detectors (DT) are arranged along the inspection channel. The grating (G) extends in a plane substantially parallel to the arrangement of the N-row detector (DT), and the at least one grating (G) has a periodic structure, the periodic structure being configured to diffuse the rays passing through the grating (G) to form an interference pattern, the direction of extension of the structural unit of the periodic structure being at a non-zero angle to the direction of extension of the inspection channel.

IPC Classes  ?

• G01N 23/041 - Phase-contrast imaging, e.g. using grating interferometers

Abstract

A radiation imaging device, a CT imaging device, a radiation imaging method, and a CT imaging method. The radiation imaging device comprises: a radiation source (S), a detector (DT), and at least one grating (G0, G1, G2), the at least one grating (G0, G1, G2) being arranged on an inspection channel defined between the radiation source (S) and the detector (DT). The grating (G0, G1, G2) shields only a portion of the radiation beam such that a portion of the radiation beam is received by the detector (DT) after passing through the grating (G0, G1, G2).

IPC Classes  ?

• G01N 23/00 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or
• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment

Abstract

The present application provides a multi-modal multi-channel complementary visual data calibration method and apparatus. The method comprises: obtaining original calibration data acquired by a complementary camera and auxiliary cameras; making adjustments on the basis of the original calibration data, so that the complementary camera and the auxiliary cameras are time-aligned; pairing the complementary camera with any auxiliary camera to form a binocular camera calibration pair; for each binocular camera calibration pair, on the basis of the original calibration data, performing spatial alignment of the complementary camera and the auxiliary camera to obtain a mapping relationship between the complementary camera and the auxiliary camera; and on the basis of the mapping relationship, performing data calibration on the original calibration data of the complementary camera by using the original calibration data of the auxiliary camera, so as to obtain target calibration data. The present application provides a calibration method for unconventional multi-modal multi-channel visual data.

IPC Classes  ?

• G06T 7/80 - Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
• G06F 17/16 - Matrix or vector computation
• G06T 3/04 - Context-preserving transformations, e.g. by using an importance map
• G06T 3/06 - Topological mapping of higher dimensional structures onto lower dimensional surfaces

Abstract

Provided are a recombinant Halomonas capable of inducing protein self-degradation, a construction method therefor, and a use thereof. The recombinant Halomonas does not express SspB protein or the expressed SspB protein does not have a function or has a reduced function, and in the recombinant Halomonas an SsrA tag is inserted into the C-terminus of a protein to be degraded. The recombinant Halomonas can degrade a target protein in the middle and late stages of growth or in a product synthesis stage, and said method is used to achieve the regulation of protein degradation.

IPC Classes  ?

• C12N 1/21 - BacteriaCulture media therefor modified by introduction of foreign genetic material
• C12N 15/74 - Vectors or expression systems specially adapted for prokaryotic hosts other than E. coli, e.g. Lactobacillus, Micromonospora
• C12P 7/62 - Carboxylic acid esters
• C12R 1/01 - Bacteria or actinomycetales

Abstract

The present disclosure provides a CT device and a detection method. The CT device comprises a conveying apparatus; a rotating apparatus; a first control apparatus, which is connected to the conveying apparatus and used for collecting the moving distance of the conveying apparatus and calculating, on the basis of the moving speed of the conveying apparatus and the rotational speed of the rotating apparatus, the rotation angle of the rotating apparatus that corresponds to the moving distance; a second control apparatus, which is connected to the rotating apparatus and used for collecting the rotation angle of the rotating apparatus; and a calculation apparatus, which is connected to the first control apparatus and the second control apparatus and used for receiving the moving distance collected by the first control apparatus, the rotation angle calculated by the first control apparatus, and the rotation angle collected by the second control apparatus, for making the moving distance collected by the first control apparatus correspond one-to-one to the rotation angle collected by the second control apparatus on the basis of the rotation angle calculated by the first control apparatus to obtain synchronous data, and for generating a fluoroscopic image on the basis of detection data and the synchronous data.

IPC Classes  ?

• G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]

Abstract

A robot parking method and apparatus, a device, and a readable storage medium. The robot parking method comprises: in a work start area, obtaining first laser radar data of the surrounding environment around a robot by means of a laser radar on the robot (S201); according to the first laser radar data, determining first coordinate information of the robot in a first coordinate system (S202); obtaining second coordinate information of a first marker, which is in a parking area, in the first coordinate system (S203); according to a first relative position relationship between the first coordinate information and the second coordinate information, determining third coordinate information of the first marker in a second coordinate system in which the laser radar is located (S204); according to the third coordinate information, generating a first movement path for the robot (S205); and moving along the first movement path from the work start area to the parking area (S206).

IPC Classes  ?

• G01C 21/20 - Instruments for performing navigational calculations
• G01S 17/88 - Lidar systems, specially adapted for specific applications
• G01S 17/06 - Systems determining position data of a target

Abstract

A biological information collection device and method, the biological information collection device comprising: a bracket (10); a carrier (20) movably arranged on the bracket (10); a position sensor (30) provided on the carrier (20) and configured to sense the relative position of a collection object (CO) and the carrier (20) at least in the direction of height; a biological information collector (40) arranged on the carrier (20) and configured to collect biological information of the collection object (CO); a lifting driver (50) in drive connection with the carrier (20) and configured to drive the carrier (20) to ascend and descend relative to the bracket (10); and a controller (60) in signal connection with the position sensor (30), the biological information collector (40), and the lifting driver (50), and configured to enable the lifting driver (50) to drive the carrier (20) on the basis of the sensing result of the position sensor (30), and enable the biological information collector (40) to collect biological information of the collection object (CO).

IPC Classes  ?

• F16M 11/18 - Heads with mechanism for moving the apparatus relatively to the stand
• A61B 5/00 - Measuring for diagnostic purposes Identification of persons
• A61B 5/107 - Measuring physical dimensions, e.g. size of the entire body or parts thereof
• G06V 40/16 - Human faces, e.g. facial parts, sketches or expressions
• G06V 40/18 - Eye characteristics, e.g. of the iris
• G06V 10/12 - Details of acquisition arrangementsConstructional details thereof

Abstract

A collimator assembly (1), comprising: at least one position adjusting portion (11), wherein the at least one position adjusting portion (11) is located at the end portion of the collimator assembly (1) and is used for adjusting the position of the collimator assembly (1); a collimator body portion (12) with at least one position adjusting portion (11) being located on the collimator body portion (12), wherein the collimator body portion (12) comprises a first adjustment component (121), a left collimator component (122), a right collimator component (123), and adjustment holes (124) located on the left collimator component (122) and the right collimator component (123), the left collimator component (122) and the right collimator component (123) being arranged side by side and an collimator slit (125) being provided therebetween, and each adjustment component (121) passing through the corresponding adjustment hole (124) so as to adjust the width of the collimator slit (125); a shielding box (13), the shielding box (13) being fixed to the collimator body portion (12) and being located on the side surface opposite to the position adjusting portion (11), and the shielding box (13) being provided on both the top portion and the bottom portion thereof a gap (131) corresponding to the collimator slit (125).

IPC Classes  ?

• G21K 1/02 - Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
• A61B 6/06 - Diaphragms

Abstract

A single-sideband phase-sensitive detection method is provided. A time-dependent target signal of a to-be-detected system is repeatedly triggered. A plurality of modulation signal sets varying in modulation phase corresponding to a plurality of triggering moments are generated. The time-dependent target signal is modulated based on the plurality of modulation signal sets corresponding to each of the triggering moments to obtain a plurality of detection signal sets varying in time and modulation phase. The plurality of detection signal sets are processed to obtain a plurality of equivalent single-sideband modulation signal sets. The plurality of equivalent single-sideband modulation signal sets are demodulated to obtain a plurality of processed signals. A single-sideband phase-sensitive detection system, device, storage medium and computer program product are also provided.

IPC Classes  ?

• H04B 1/10 - Means associated with receiver for limiting or suppressing noise or interference
• H04B 1/68 - Details of transmission systems, not covered by a single one of groups Details of transmission systems not characterised by the medium used for transmission for wholly or partially suppressing the carrier or one side band
• H04L 27/22 - Demodulator circuitsReceiver circuits

Abstract

The present application provides an optical flow field calculation system based on complementary neuromorphic vision, comprising a complementary neuromorphic vision sensor, an optimization objective calculation unit, and an optical flow field solution calculation unit. The complementary neuromorphic vision sensor outputs temporal differential data and spatial differential data; the optimization objective calculation unit determines an optimization objective for optical flow field calculation on the basis of the temporal differential data and the spatial differential data; the temporal differential data and the spatial differential data are processed using a preset data transformation algorithm; and the optical flow field solution calculation unit calculates a multi-scale optical flow field solution on the basis of the optimization objective. The system has good applicability, stability, and anti-interference performance in applications such as robot control, autonomous driving, and industrial monitoring. Calculation data is directly provided by the complementary neuromorphic vision sensor, and additional data preprocessing is not needed, thus reducing complexity of computation.

IPC Classes  ?

• G06T 7/269 - Analysis of motion using gradient-based methods
• G06T 7/254 - Analysis of motion involving subtraction of images

Abstract

The present application relates to a method for searching for a building information model. The method comprises: performing multi-modal feature extraction on building information models in a model library to be searched, and obtaining multi-modal features corresponding to various building information models, the multi-modal features comprising semantic features, topological features, and geometric features; acquiring a search text inputted by a user, parsing the search text, and obtaining search intention information corresponding to the search text, the search intention information comprising search intention semantic features, search intention topological features, and search intention geometric features; on the basis of deep embedding learning, calculating comprehensive similarities between the search intention information and the multi-modal features of the building information models in said model library; and, on the basis of a sorting result of the comprehensive similarities between the search intention information and the multi-modal features of the building information models in said model library, determining a building information model that serves as a search result corresponding to the search text, and recommending the search result to the user.

IPC Classes  ?

• G06F 16/33 - Querying

Abstract

A method, a system and an apparatus for determining pollutant control strategy, and a computer device. The method includes: obtaining water body data of different locations of a polluted water body and historical sample water body data of different pollution levels, and identifying pollutant distribution information; collecting water flow information of the polluted water body, and generating a pollutant control strategy for the polluted water body; executing the pollutant control strategy, and detecting change information of the water body data of each location; adjusting the pollutant control strategy for the polluted water body to obtain a new pollutant control strategy, replacing the pollutant control strategy with the new pollutant control strategy, iteratively executing steps of executing the pollutant control strategy and detecting the change information of the water body data of each of the different locations, until current water body data of each location meet a standard water body condition.

IPC Classes  ?

• B09C 1/00 - Reclamation of contaminated soil
• C02F 1/00 - Treatment of water, waste water, or sewage
• C02F 103/06 - Contaminated groundwater or leachate
• G01N 33/18 - Water

Abstract

A ray conversion target (100), comprising a target body (1), a target portion (2) and a heat dissipation portion, wherein the target portion (2) is arranged inside the target body (1), and the target portion (2) has a first face and a second face arranged opposite each other, the first face being configured to generate rays; and the heat dissipation portion is configured to accommodate a heat dissipation fluid and is at least partially located on the second face of the target portion (2). A fluid inlet of the heat dissipation portion is divided into N first sub-inlets (31), each of the first sub-inlets (31) being in communication with a corresponding first flow channel (32), where N is an integer greater than or equal to 2. Each of the first sub-inlets (31) is different from at least one of the other first sub-inlets in terms of size, and the N first sub-inlets (31) are configured to regulate the flow rate of the fluid in each first flow channel (32). Further provided are a ray source and an irradiation device.

IPC Classes  ?

• H01J 35/10 - Rotary anodesArrangements for rotating anodesCooling rotary anodes
• H01J 35/12 - Cooling non-rotary anodes
• G21K 5/00 - Irradiation devices

Abstract

Disclosed in the present application are an electric device, a charging device, a charging system, and a charging method The electric device comprises a charged contact, a first switch circuit, a second switch circuit, a voltage measurement circuit, a battery, and a first control apparatus. After receiving a measurement voltage signal that is output by the voltage measurement circuit, the first control apparatus controls the first switch circuit to be switched off and controls the second switch circuit to be switched on, so that the safety of the electric device and the charging device during a charging idle period is improved, and a charging control process is simplified.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H01M 10/44 - Methods for charging or discharging

Abstract

A brain-inspired application test set determination method and apparatus, an electronic device, and a storage medium. The method comprises: performing feature analysis on each brain-inspired application in an initial brain-inspired application test set, to obtain a data representation feature corresponding to each brain-inspired application; calculating a calculation overhead generated when each brain-inspired application is executed based on a spiking neural network paradigm; on the basis of the calculation overheads corresponding to the brain-inspired applications, determining a data calculation feature of each brain-inspired application; on the basis of the data representation features and the data calculation features, performing clustering processing on the brain-inspired applications in the initial application test set, to obtain at least one group; and, on the basis of a feature vector corresponding to each group, constructing a brain-inspired application, to obtain a target application test set corresponding to the initial brain-inspired application test set.

IPC Classes  ?

• G06N 3/049 - Temporal neural networks, e.g. delay elements, oscillating neurons or pulsed inputs
• G06F 18/23 - Clustering techniques
• G06N 3/063 - Physical realisation, i.e. hardware implementation of neural networks, neurons or parts of neurons using electronic means
• G06F 18/214 - Generating training patternsBootstrap methods, e.g. bagging or boosting
• G06F 18/213 - Feature extraction, e.g. by transforming the feature spaceSummarisationMappings, e.g. subspace methods

Abstract

A tumor prognosis prediction method and device based on tumor-immune-stromal cells. The method comprises: constructing an open tumor prognosis simulation model based on tumor-immune-stromal cells, to simulate the prognosis of patients with different actual situations under different treatments from two aspects, i.e., tumor-immune-stromal cell behaviors and interactions, and then to determine individual prognosis results and group prognosis results of the patients.

IPC Classes  ?

• G16H 50/50 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for simulation or modelling of medical disorders
• G16B 40/00 - ICT specially adapted for biostatisticsICT specially adapted for bioinformatics-related machine learning or data mining, e.g. knowledge discovery or pattern finding
• G16B 30/00 - ICT specially adapted for sequence analysis involving nucleotides or amino acids
• G16B 50/00 - ICT programming tools or database systems specially adapted for bioinformatics
• G16B 5/00 - ICT specially adapted for modelling or simulations in systems biology, e.g. gene-regulatory networks, protein interaction networks or metabolic networks

Abstract

Provided is a heat dissipation device for a Marx generator. The device comprises N cooling plates arranged in sequence; a switch assembly of a Marx generator is fixed on each cooling plate, and the switch assemblies on the N cooling plates are sequentially connected in series; each cooling plate has a water inlet and a water outlet, cooling water flows into the cooling plate from the water inlet and flows out from the water outlet, and the water inlets and water outlets of different cooling plates are connected by means of water cooling lines to achieve the flow of the cooling water across the cooling plates; the cooling water flows in from the water inlet of the first cooling plate, flows out from the water outlet of the first cooling plate, sequentially passes through m cooling plates except the second cooling plate, then flows into the water inlet of an N-th cooling plate, flows out from the water outlet of the N-th cooling plate, sequentially flows through k cooling plates, and then flows out from the water outlet of the second cooling plate, wherein m+k=N-3, 0≤m≤N-3, 0≤k≤N-3, and the m cooling plates and the k cooling plates are different from each other.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

A meat composition calculation method. The method comprises: executing dual-energy X-ray scanning on a piece of meat, so as to obtain scanned image data of the piece of meat; converting the expression form of the scanned image data, so as to obtain image conversion data of the piece of meat; training a meat composition calculation model on the basis of a plurality of meat samples, so as to obtain a trained meat composition calculation model; and on the basis of the image conversion data, using the trained meat composition calculation model to calculate meat composition information of the piece of meat.

IPC Classes  ?

• G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
• G06V 10/774 - Generating sets of training patternsBootstrap methods, e.g. bagging or boosting

Abstract

A baggage sorting system and sorting method, in which a detection device (I) is used for detecting a baggage state and conveying detected baggage to a baggage output area (A); when the baggage is normal baggage, a robot (1) is controlled to convey the baggage to a transfer area (C) to be transferred, and when the baggage is suspicious baggage, the robot (1) is controlled to move the suspicious baggage to a sealing inlet area (D), so that a sealing device (J) can seal the baggage.

IPC Classes  ?

• B07C 3/02 - Apparatus characterised by the means used for distribution
• B07C 3/10 - Apparatus characterised by the means used for detection of the destination

Abstract

A large-scale distributed photoelectric intelligent computing system, including: a diffractive compression encoder, configured to collect two-dimensional light field information through a grating array, convert the two-dimensional light field information into one-dimensional information through waveguide transmission and transmit the one-dimensional information to a first diffractive region, and perform computing using a diffractive coding weight to output a one-dimensional vector through an output end of the first diffractive region; a reconfigurable interference feature embedder consisting of an interferometer array composed of a plurality of thermo-optical phase modulators, in which the interferometer array is configured to perform a multiplication operation on the one-dimensional vector, to output a computed result in a one-dimensional vector form; and a diffractive decoder, configured for diffractive decoding the computed result in the one-dimensional vector form through a second diffractive region, to compute and output final light field information through a diffractive decoding weight.

IPC Classes  ?

• G02B 5/18 - Diffracting gratings
• G02B 26/10 - Scanning systems

Abstract

Provided are an unambiguous positioning method for a satellite navigation system B1 wideband composite signal and an apparatus thereof, which can determine observed quantities of a plurality of satellites by means of tracking B1C signals and B1I signals in B1 wideband composite signals, determine a code pseudo-range value and pseudo-range value from each satellite to a receiver by means of the observed quantities, utilize the pseudo-range values and the code pseudo-range values to calculate ambiguity floating-point solutions of propagation delays of the B1 wideband composite signals, and obtain ambiguity integer solutions by means of the ambiguity floating-point solutions, so as to correct erroneously estimated propagation delay ambiguities of the B1 wideband composite signals, thereby obtaining unambiguous pseudo-range values, and implementing unambiguous and highly precise positioning of the location of the receiver.

IPC Classes  ?

• G01S 19/44 - Carrier phase ambiguity resolutionFloating ambiguityLAMBDA [Least-squares AMBiguity Decorrelation Adjustment] method

Abstract

A pushing mechanism and an inspection system are provided. The pushing mechanism includes a position-changing device (10), a driving device (20) and a guide device (30). The position-changing device includes a main plate (11) and a pushing element (12) movably disposed on a side of the main plate. The driving device is connected to the main plate and configured to drive the position-changing device to move. After the guide device is in contact with the pushing element, the pushing element may switch between a first state and a second state. A highest point of the pushing element in the first state is higher than a highest point of the pushing element in the second state.

IPC Classes  ?

• B65G 47/82 - Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels

Abstract

A terahertz signal-based image collection device, an image generation system and an image generation method are disclosed. The image collection device includes: a swinging reflection plate configured to reflect terahertz wave signals emitted from a sampling region including a target to be inspected; a lens component configured to focus the terahertz wave signals reflected by the swinging reflection plate; and a radiometer array including n rows of radiometers mounted on a focal plane of the lens component, where the n rows of radiometers are configured to sample the terahertz wave signals emitted from the same height of the target to be inspected and reflected by the swinging reflection plate at intervals, where n≥2, so that the formed terahertz wave image has higher resolution and higher contrast.

IPC Classes  ?

• G01V 8/22 - Detecting, e.g. by using light barriers using multiple transmitters or receivers using reflectors

Abstract

A terahertz signal-based image collection method and system. The image collection method includes: providing two terahertz devices respectively on two sides of an inspection region; adjusting a posture of a swinging reflection plate of each terahertz device to reflect terahertz wave signals emitted by a target to be inspected in the inspection region, and preventing the terahertz wave signals of the target to be inspected reflected by the swinging reflection plate of one of the two terahertz devices from being incident on the swinging reflection plate of the other one of the two terahertz devices; and generating terahertz images of different sides of the target to be inspected based on terahertz signals reflected from the swinging reflection plates of the two terahertz devices.

IPC Classes  ?

• G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation

Abstract

Embodiments of the present application set forth a trajectory tracking control method for an exoskeleton robot, comprising: in a first stage, when an exoskeleton robot is not applied to a subject, determining system interference of a power system of the exoskeleton robot, and compensating an output parameter of a power model of the exoskeleton robot; in a second stage, when the exoskeleton robot is applied to a subject, isolating the system interference from a human-machine interaction torque of the second stage, and determining the human-machine interaction torque; inputting the human-machine interaction torque into a controller, and using the controller to determine an assistance of the power system of the exoskeleton robot.

IPC Classes  ?

• B25J 9/16 - Programme controls

Abstract

Provided is a compound. The compound is a compound represented by formula (I) or a stereoisomer, tautomer, solvate, or pharmaceutically acceptable salt thereof.

IPC Classes  ?

• C07D 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a chain containing hetero atoms as chain links
• C07D 401/12 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
• A61K 31/454 - Non-condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems containing a five-membered ring with nitrogen as a ring hetero atom, e.g. pimozide, domperidone
• A61K 31/4709 - Non-condensed quinolines containing further heterocyclic rings
• A61K 31/55 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having seven-membered rings, e.g. azelastine, pentylenetetrazole
• A61P 29/00 - Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agentsNon-steroidal antiinflammatory drugs [NSAID]
• A61P 35/00 - Antineoplastic agents

Abstract

A class of compounds represented by formula (I) or a stereoisomer, a tautomer, a solvate, or a pharmaceutically acceptable salt thereof.

IPC Classes  ?

• C07D 487/04 - Ortho-condensed systems
• A61K 31/519 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
• A61P 9/10 - Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
• A61P 1/16 - Drugs for disorders of the alimentary tract or the digestive system for liver or gallbladder disorders, e.g. hepatoprotective agents, cholagogues, litholytics
• A61P 3/10 - Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
• A61P 13/12 - Drugs for disorders of the urinary system of the kidneys
• A61P 19/10 - Drugs for skeletal disorders for bone diseases, e.g. rachitism, Paget's disease for osteoporosis
• A61P 35/00 - Antineoplastic agents
• A61P 29/00 - Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agentsNon-steroidal antiinflammatory drugs [NSAID]
• A61P 19/02 - Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis
• A61P 19/08 - Drugs for skeletal disorders for bone diseases, e.g. rachitism, Paget's disease
• A61P 27/02 - Ophthalmic agents
• A61P 25/28 - Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia

Abstract

Provided in the embodiments of the present disclosure are a storage unit, a memristor array, a compute-in-memory circuit and an operation method. The storage unit comprises n weight units and a lateral gate transistor. Each of the n weight units comprises a first memristor element and a first switch element, a first electrode of the first memristor element being electrically connected to a first electrode of the first switch element, and a second electrode of the first memristor element being used as a second end of the corresponding weight unit and being used for receiving a first bit line signal. The second electrodes of the first switch elements of the N weight units are respectively used as the first ends of the corresponding weight units and are electrically connected to each other, and are electrically connected to a first end of the lateral gate transistor. The control electrodes of the first switch elements are respectively used for receiving different first word line signals. A second end of the lateral gate transistor is used for receiving a source line signal, and a control end of the lateral gate transistor is used for receiving a second word line signal.

IPC Classes  ?

• G11C 13/00 - Digital stores characterised by the use of storage elements not covered by groups , , or

Abstract

Provided are an engineered halophilic microorganism and a construction method and use therefor. By means of knockout or knockdown of one or more than two genes on a transposon and encoding a transposase, a stable halophilic microorganism is obtained, which has good growth condition, can stably synthesize polyhydroxy alkanoates, and can effectively avoid spontaneous mutation of the strain.

IPC Classes  ?

• C12N 1/21 - BacteriaCulture media therefor modified by introduction of foreign genetic material
• C12N 15/54 - Transferases (2)
• C12P 7/625 - Polyesters of hydroxy carboxylic acids
• C12R 1/01 - Bacteria or actinomycetales

Abstract

Provided is a carbon dioxide capture system based on a biphasic solvent, the system comprising an absorption tower, a phase splitter, a first law power device, a heat exchange regenerator, a heat pump, and a plurality of second law power devices. The heat exchange regenerator comprises a gas discharge port for discharging carbon dioxide desorbed in the heat exchange regenerator.

IPC Classes  ?

• B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
• B01D 53/18 - Absorbing unitsLiquid distributors therefor
• B01F 27/1143 - Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections screw-shaped, e.g. worms
• B01F 27/1144 - Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections with a plurality of blades following a helical path on a shaft or a blade support
• B01F 27/72 - Mixers with rotary stirring devices in fixed receptaclesKneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
• B01F 101/00 - Mixing characterised by the nature of the mixed materials or by the application field

Abstract

A data processing method for static computed tomography scanning and a device are provided. The data processing method for static CT scanning includes: performing, in response to receiving a beam synchronization pulse signal, a time synchronization on N angle pulse signals and a time synchronization on N belt pulse signals by using the beam synchronization pulse signal, to obtain N synchronization angle pulse signals and N synchronization belt pulse signals, respectively; generating N timestamps based on the N synchronization angle pulse signals and the N synchronization belt pulse signals, where the N timestamps correspond to N scanning imaging systems of a static CT scanning device, respectively, and each of the N timestamps includes angle data and belt data; and packaging beam data, detection data, the angle data, and the belt data corresponding to each of the N scanning imaging systems to obtain N data packets.

IPC Classes  ?

• G01T 1/29 - Measurement performed on radiation beams, e.g. position or section of the beamMeasurement of spatial distribution of radiation

Abstract

A state prediction method and apparatus, a computer device, a storage medium, and a computer program product. The method comprises: obtaining data for detection, wherein the data for detection comprises a fundus image and covariate data, and the covariate data is variable data for assisting in identifying a target lesion; on the basis of a preset feature extraction model, performing feature extraction on the fundus image and the covariate data respectively to obtain an image feature vector, a first weight corresponding to the image feature vector, a covariate feature vector, and a second weight corresponding to the covariate feature vector; and processing the image feature vector and the covariate feature vector on the basis of the first weight, the second weight, and a preset hybrid model to obtain a target state prediction result, wherein the preset hybrid model is constructed on the basis of the image feature vector and the covariate feature vector that separately satisfy a maximum likelihood function condition and under the conditions where the data for detection has censored data or does not have censored data.

IPC Classes  ?

• G16H 50/20 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for computer-aided diagnosis, e.g. based on medical expert systems
• G06N 3/0464 - Convolutional networks [CNN, ConvNet]
• G06N 3/0985 - Hyperparameter optimisationMeta-learningLearning-to-learn
• G06N 3/084 - Backpropagation, e.g. using gradient descent
• G06N 3/0895 - Weakly supervised learning, e.g. semi-supervised or self-supervised learning
• G06T 7/00 - Image analysis

Abstract

Disclosed in the present invention is a performance-controllable mechanical sealing device, comprising: a movable ring, a shaft sleeve, an O-shaped sealing ring, and an adjusting ring. The movable ring is mounted on the shaft sleeve, the shaft sleeve is provided with a raised ring, and a sealing recess is formed in the side face of the raised ring adjacent to the back face of the movable ring; the O-shaped sealing ring is arranged in the sealing recess so as to seal a gap between one side face of the raised ring and the back of the movable ring; and the adjusting ring is arranged in the sealing recess and is nested with the O-shaped sealing ring so as to adjust the position of a high-low pressure boundary on the back face of the movable ring.

IPC Classes  ?

• F16J 15/34 - Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member

Abstract

Provided in the present application are a high-dynamic-range imaging method, and an imaging system. The method comprises: collecting a plurality of first images of a photographed region; determining a target region on the basis of the plurality of first images, wherein the target region is a part of the photographed region, and the brightness of the target region reaches a threshold value; and collecting a second image of the photographed region, wherein when the second image is imaged, the light intensity of a light signal from the target region is weakened. The imaging system comprises an image sensor, a processing module, a modulation module and a lens group. By means of the method and the imaging system in the present application, single-frame high-dynamic-range imaging can be effectively performed.

IPC Classes  ?

• H04N 23/75 - Circuitry for compensating brightness variation in the scene by influencing optical camera components
• H04N 23/76 - Circuitry for compensating brightness variation in the scene by influencing the image signals
• G06T 7/11 - Region-based segmentation
• H04N 23/60 - Control of cameras or camera modules

Abstract

The present disclosure provides a resistive random access memory and a memory device. The resistive random access memory comprises a first electrode, a second electrode, and a resistive layer between the first electrode and the second electrode, wherein a first interface region and a second interface region are provided on the side of at least one of the first electrode and the second electrode that is close to the resistive layer, and the oxygen binding capability of an electrode material located in the first interface region is less than the oxygen binding capability of an electrode material located in the second interface region. Conductive filaments in the resistive random access memory are more easily formed at a second interface region, so that the formation positions of the conductive filaments are more concentrated and stable, and the consistency of a device can be enhanced, thereby enhancing the reliability of the device.

IPC Classes  ?

• H10N 70/00 - Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
• H10N 70/20 - Multistable switching devices, e.g. memristors
• H10B 63/00 - Resistance change memory devices, e.g. resistive RAM [ReRAM] devices

Abstract

A wireless intraoral genioglossus electromyography collection apparatus, and a closed-loop functional electrical stimulation system comprising the apparatus. In the electromyography collection apparatus, electrodes (5, 50), electromyography collection circuits (2, 3, 4) and a wearable dental appliance (1) are fixedly assembled and are subject to waterproof packaging, so that the accuracy of signal collection and the wearing comfort of a user are effectively improved, and the apparatus is suitable for being worn for a long time in an intraoral humid environment. The closed-loop functional electrical stimulation system integrates electromyographic signal monitoring and electrical stimulation, can monitor the activity state of the genioglossus in real time, and provides electrical stimulation when necessary to maintain airway patency, and thus effectively prevents breathing problems caused by airway collapse. The system can also automatically adjust stimulation parameters according to real-time feedback of electromyographic signals, such that the treatment accuracy and the treatment effect are improved, and the system is particularly suitable for treating obstructive sleep apnea.

IPC Classes  ?

• A61B 5/296 - Bioelectric electrodes therefor specially adapted for particular uses for electromyography [EMG]
• A61B 5/256 - Wearable electrodes, e.g. having straps or bands

Abstract

The present application relates to the technical field of electronic devices. Disclosed are a keyword recognition method and apparatus, and an electronic device, which are used for ensuring the balance between recognition accuracy and a false alarm rate. The method comprises: acquiring information to be subjected to recognition, and decoding said information by means of a keyword set, so as to obtain a first sequence; decoding said information by means of a full set or a non-keyword set, so as to obtain a second sequence; determining the similarity between the first sequence and the second sequence; and when the similarity meets a set threshold condition, outputting the first sequence as a keyword recognition result. In the present application, the first sequence is output as the keyword recognition result only when the similarity between the first sequence and the second sequence meets the set threshold condition, so that the balance between the keyword recognition accuracy and the false alarm rate can be ensured.

IPC Classes  ?

• G10L 15/00 - Speech recognition

Abstract

At least one embodiment of the present disclosure provides a memory array, an electronic device, and an operation method for a memory array. The memory array comprises a plurality of non-volatile static memory storage units, a plurality of power lines, and a plurality of ground lines. The plurality of non-volatile static memory storage units are arranged into a plurality of rows and a plurality of columns and are configured to perform data storage and data backup and recovery. The plurality of power lines are configured to provide the plurality of non-volatile static memory storage units with a first power supply voltage, the plurality of power lines each being electrically connected to a corresponding column of storage units in a first direction, and the plurality of power lines being shorted in a second direction. The plurality of ground lines are configured to provide the plurality of non-volatile static memory storage units with a second power supply voltage, the plurality of ground lines each being electrically connected to a corresponding column of storage units in the first direction, and the plurality of ground lines being shorted in the second direction. According to the described memory array, when data recovery is performed in one row of storage units at the same time, the voltages of the power lines can be kept stable.

IPC Classes  ?

• G11C 11/416 - Read-write [R-W] circuits

Abstract

The present disclosure provides an integrated circuit device and a method for preparing an integrated circuit device, the integrated circuit device comprising a cache circuit layer, an in-memory computing circuit layer, and a logic control circuit layer. The logic control circuit layer is configured to control a data processing flow, the in-memory computing circuit layer is configured to execute a matrix-vector computation task, and the cache circuit layer comprises a dynamic random access memory (DRAM) to store data in the matrix-vector computation task, the DRAM being a capacitor-less dynamic random access memory. The cache circuit layer, the in-memory computing circuit layer, and the logic control circuit layer at least partially overlap with one another in a first direction and are in communication connection with one another. The integrated circuit device and the method for preparing an integrated circuit device can be used for improving the computational efficiency of a chip processing a neural network, and achieving high-speed neural network computation involving big data.

IPC Classes  ?

• H10B 12/00 - Dynamic random access memory [DRAM] devices
• G06N 3/0464 - Convolutional networks [CNN, ConvNet]
• G06N 3/063 - Physical realisation, i.e. hardware implementation of neural networks, neurons or parts of neurons using electronic means
• G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersectionsConnectivity analysis, e.g. of connected components
• G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks

Abstract

The present disclosure provides a drive circuit, and a memory device and an operation method therefor. The drive circuit comprises a first control circuit, a current-limiting circuit and a second control circuit, which are coupled, wherein the first control circuit is configured to transmit, when turned on, a current-limiting operation signal on a current-limiting operation signal line to the current-limiting circuit; the current-limiting circuit is configured to apply, under the control of the current-limiting operation signal, a first operation signal to a load signal line connected to an output end of the drive circuit; and the second control circuit is configured to control, when turned on, the current-limiting circuit to stop applying the first operation signal to the load signal line on the basis of a feedback signal from the load signal line. The drive circuit can reduce power consumption.

IPC Classes  ?

• G11C 13/00 - Digital stores characterised by the use of storage elements not covered by groups , , or

Abstract

xxx emission is reduced.

IPC Classes  ?

• F23D 14/24 - Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion