Abrégé

Described are a carbon-iodine conjugated polymer and preparation thereof, an imaging marker thereof, and uses thereof for preparing a localization marker, and belongs to the technical field of imaging markers. The conjugated structure enables the polymer to have strong absorption in a visible light region, and high iodine content of up to 84.1% corresponds to the strong imaging ability thereof. During surgery, on the basis of the dual guidance of a polymer-based image marker and naked eye observation, the marker can better facilitate determination of tumor resection margins, achieving precise resection of tumors and minimizing damage to surrounding normal tissues. During cyberknife-based treatment, the polymer can replace clinical gold markers to provide ray marker guidance. Absence of metal artifacts improves ray imaging quality and the accuracy of radiation dose distribution, good biocompatibility enhances the stability of the relative position of the marker, and radiotherapy side effects can be further reduced.

Classes IPC  ?

• C08G 61/04 - Composés macromoléculaires contenant uniquement des atomes de carbone dans la chaîne principale de la molécule, p. ex. polyxylylènes uniquement des atomes de carbone aliphatiques
• A61K 49/04 - Préparations de contraste pour rayons X

Abrégé

The disclosure belongs to the technical field related to additive manufacturing model preprocessing, and discloses a field-based additive manufacturing digital model feature identification and extraction method and device, the method can convert the digital model represented by the facet into a signed distance field and introduce a simulated physical field of the forming/service simulation, the feature distance field after the frequency domain analysis filtering, and the geometric feature field obtained by the multi-precision convolution unit analysis according to the requirement of feature to be identified, then, multiple fields are combined to realize feature classification determination and labeling of features, and finally feature extraction is completed based on field data and isosurface and isoline reconstruction algorithms.

Classes IPC  ?

• G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p. ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle
• B29C 64/386 - Acquisition ou traitement de données pour la fabrication additive
• B33Y 50/00 - Acquisition ou traitement de données pour la fabrication additive
• G06F 30/17 - Conception mécanique paramétrique ou variationnelle
• G06F 113/10 - Fabrication additive, p. ex. impression en 3D

Abrégé

x1-x1-yyzz, wherein the element M is at least one of In, Ga, Al, and Zn, 0.1≤x≤0.9, 0.02≤y≤0.15, and 0≤z≤0.2. According to the gate transistor material and the preparation method therefor, and the gate transistor unit, the problems of safety of material selection and stability of existing gate transistors are solved. Moreover, the gate transistor device prepared from the Se-based gate transistor material has adjustable threshold voltage and better comprehensive performance.

Classes IPC  ?

• H10N 70/00 - Dispositifs à l’état solide n’ayant pas de barrières de potentiel, spécialement adaptés au redressement, à l'amplification, à la production d'oscillations ou à la commutation
• H10N 70/20 - Dispositifs de commutation multistables, p. ex. memristors

Abrégé

The disclosure provides a frequency support method, device and wind farm for a wind farm and belongs to the technical field of new energy power generation and grid connection. In the frequency support method, a state that can reflect a frequency modulation capability of a wind turbine is designed, measured, and recorded as a consistency factor of frequency modulation. Each wind turbine is controlled to exchange the consistency factors with two adjacent wind turbines. Each wind turbine combines its own consistency factors with the consistency factors of two adjacent wind turbines to generate consistent added power through a PI link and adjusts real-time frequency modulation output based on the consistency added power. In this way, the states of the wind turbines in the wind farm are similar during the frequency support process, so that a reasonable distribution of frequency support power is achieved.

Classes IPC  ?

• F03D 7/02 - Commande des mécanismes moteurs à vent les mécanismes moteurs à vent ayant l'axe de rotation sensiblement parallèle au flux d'air pénétrant dans le rotor
• F03D 7/04 - Commande automatiqueRégulation
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02J 3/46 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs

Abrégé

The present invention relates to the technical field of artificial neuromorphology, and provides a temperature-sensing artificial neuron system based on a chalcogenide threshold switching device. The system comprises a resistor, a chalcogenide threshold switching device, and a capacitor. The chalcogenide threshold switching device is used for realizing switching between a high-resistance state and a low-resistance state under different excitations; wherein, on the basis of the characteristic that a threshold voltage of the chalcogenide threshold switching device decreases along with an increase of temperature, and that then the amplitude of a pulse signal decreases and the frequency of periodic oscillation increases, a change in the threshold voltage serves as a response which allows a temperature signal to be sensed. An excitation input end is used for providing an excitation for the capacitor, to control the capacitor to discharge by means of the chalcogenide threshold switching device, or to control the capacitor to be charged by means of the resistor. The temperature-sensing artificial neuron system in the present invention can convert a temperature signal into a pulse signal without additionally incorporating a temperature sensor, has a compact structure, a simple circuit structure, small leakage current and low power consumption, and is conducive to large-scale integration.

Classes IPC  ?

• G01K 13/00 - Thermomètres spécialement adaptés à des fins spécifiques
• G01K 1/00 - Détails des thermomètres non spécialement adaptés à des types particuliers de thermomètres
• G06N 3/063 - Réalisation physique, c.-à-d. mise en œuvre matérielle de réseaux neuronaux, de neurones ou de parties de neurone utilisant des moyens électroniques

Abrégé

A cascade-based power dissipation optimization method and system for an amplification circuit are provided. The method includes: S1, acquiring a relationship of power dissipation of an amplification circuit to input signal amplitudes and voltage gains by means of statistical analysis; and S2, designing an optimal cascade strategy for the amplification circuit according to the relationship of the power dissipation of the amplification circuit to the input signal amplitudes and the voltage gains, and adjusting the number of stages of the amplification circuit and a voltage gain of each stage of the amplification circuit so as to minimize total power dissipation of the amplification circuit.

Classes IPC  ?

• G06F 30/373 - Optimisation de la conception

Abrégé

A holographic wavefront printing system and method are provided. A two-dimension digital blazed grating is loaded on a phase hologram, and the emergent direction of active region diffracted light is adjusted to prevent overlapping with the dead region diffracted light after being Fourier transformed by a lens, and a phase spatial light modulator is inclined by a preset angle to change the emergent direction of the diffracted light, such that the dead region zeroth-order and first-order diffracted light on a focusing surface are symmetrical with respect to a main optical axis of a first lens, the frequency spectrum center of active region zeroth-order diffracted light is then loaded to the original frequency spectrum center without information change. In this way, the adverse effects of the dead region diffracted light and active region high-order diffracted light of the phase spatial light modulator on holographic wavefront printing are eliminated.

Classes IPC  ?

• G03H 1/02 - Procédés ou appareils holographiques utilisant la lumière, les infrarouges ou les ultraviolets pour obtenir des hologrammes ou pour en obtenir une imageLeurs détails spécifiques Détails
• G03H 1/04 - Procédés ou appareils pour produire des hologrammes
• G03H 1/16 - Procédés ou appareils pour produire des hologrammes utilisant une transformation de Fourier
• G03H 1/30 - Procédés ou appareils adaptés spécialement pour produire des hologrammes multiples ou pour en obtenir des images, p. ex. procédés pour l'holographie à plusieurs couleurs uniquement des hologrammes séparés

Abrégé

Disclosed are a vectorial rotation velocity measurement method and device based on multi-core fiber, which belongs to the field of optical measurement. Input multiple lights are transmitted through a non-uniformly distributed space to form a structured non-uniform spatially-distributed scalar light field, wherein the scalar light field serves as a collimated probe light to illuminate rotationally moving particles, the rotationally moving particles reflect a signal light carrying motion information, the signal light is subjected to a Fourier analysis to obtain a Fourier amplitude spectrum and a Fourier phase spectrum, a velocity of the rotationally moving particles is calculated through a frequency peak in the Fourier amplitude spectrum, and a direction of the velocity of the rotationally moving particles is calculated using a relative phase difference value corresponding to the Fourier phase spectrum, thereby realizing a measurement of vectorial rotationally moving particles based on the multi-core fiber.

Classes IPC  ?

• G01S 17/58 - Systèmes de détermination de la vitesse ou de la trajectoireSystèmes de détermination du sens d'un mouvement
• G01S 7/481 - Caractéristiques de structure, p. ex. agencements d'éléments optiques
• G01S 7/4915 - Mesure du temps de retard, p. ex. détails opérationnels pour les composants de pixelsMesure de la phase

Abrégé

2 and p-CuO. In the analog type, multiple resistance state performance is exhibited based on charge trapping and releasing, and self-rectification characteristics are exhibited, without the need for a selector, which facilitates large-scale integration; in the digital type, the presence of Ag/Cu ions in the layer helps to form Ag/Cu conductive filaments, the switching threshold voltage is small, and the advantages of fast switching speed and low switching power consumption are provided. The disclosure realizes a PN heterojunction device of an N-type oxide layer and a P-type oxide layer through electrochemical principles, and is analog type-digital type reconfigurable between a self-rectifying analog type device and a digital type device.

Classes IPC  ?

• H10N 70/20 - Dispositifs de commutation multistables, p. ex. memristors
• G11C 13/00 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage non couverts par les groupes , ou
• G11C 27/00 - Mémoires analogiques électriques, p. ex. pour emmagasiner des valeurs instantanées
• H10B 63/00 - Dispositifs de mémoire par changement de résistance, p. ex. dispositifs RAM résistifs [ReRAM]
• H10N 70/00 - Dispositifs à l’état solide n’ayant pas de barrières de potentiel, spécialement adaptés au redressement, à l'amplification, à la production d'oscillations ou à la commutation

Abrégé

The disclosure provides a method and system for trajectory tracking control of a vehicle-manipulator coupling system with finite time prescribed performance. Specifically, the trajectory tracking error of the vehicle-manipulator coupling system is obtained. A finite time performance function is designed to constrain the trajectory tracking error. In a case the constraint conditions corresponding to the finite time performance function are satisfied, the trajectory tracking error is converted to obtain a transformed error. The sliding mode surface is designed based on the transformed error to control the transformed error to converge in a finite time, and the external disturbance of the vehicle-manipulator coupling system is observed based on non-linear disturbance observer. The control input of the vehicle-manipulator coupling system is designed based on the sliding mode surface and the non-linear disturbance observer output. This ensures that the vehicle-manipulator coupling system can be controlled to operate precisely along the desired trajectory.

Classes IPC  ?

• G05D 1/689 - Interaction avec des charges utiles ou des entités externes dirigeant des charges utiles vers des cibles fixes ou en mouvement
• G05D 109/30 - Véhicules aquatiques

Abrégé

The disclosure provides a convolution operation accelerator and a convolution operation method and belongs to the field of microelectronic devices. Input data of each word line may be subjected to a multiply-accumulate operation together with two upper and lower layers of convolution kernel units, so that natural sliding of the convolution kernel units in a y direction in two-dimensional input is achieved. The oblique bit lines and multiple copies of a convolution kernel in each layer of a non-volatile memory array may enable a multiplication operation between one piece of input data and convolution kernel data at different positions in the same convolution kernel. In this way, the natural sliding of the convolution kernel units in an x direction in the two-dimensional input is achieved.

Classes IPC  ?

• G11C 5/02 - Disposition d'éléments d'emmagasinage, p. ex. sous la forme d'une matrice
• G06N 3/0464 - Réseaux convolutifs [CNN, ConvNet]
• G11C 5/06 - Dispositions pour interconnecter électriquement des éléments d'emmagasinage

Abrégé

The disclosure provides a method and a system for calculating a stability margin domain of the control parameters of a hydraulic turbine regulating system, which belongs to the technical field of stability margin analysis of the hydraulic turbine regulating system. The method includes: determining a high-order state space model of the hydraulic turbine regulating system; determining a dominant eigenvalue and an interference eigenvalue of a state matrix of the high-order state space model; determining an associated state variable of the interference eigenvalue; determining the interference eigenvalues under different target control parameter conditions; determining whether a target control parameter meets a stability margin requirement; and determining the stability margin domain of the control parameter. The present disclosure can accurately calculate the stability margin domain of the complex hydraulic turbine system and help operators quickly identify the control parameters adjustment range meeting adjustment and attenuation requirements of the system.

Classes IPC  ?

• F03B 15/12 - Régulation, c.-à-d. agissant automatiquement par la vitesse, p. ex. en mesurant la fréquence électrique ou le débit du liquide avec action rétroactive

Abrégé

The present invention relates to the field of network security. Disclosed are a provenance graph-oriented host-based intrusion detection method and system, and a storage medium. The method comprises: S1, collecting provenance data of a host to be detected, so as to construct a provenance graph representing a user behavior; S2, mapping nodes in the provenance graph into roles, constructing a node feature matrix of which feature vectors are used for representing attribute features and structural features of the nodes in the provenance graph and an interaction relationship between the nodes, and mapping the nodes having similar feature vectors into the same role; S3, performing attention-based attributed and temporal random walk in comprehensive consideration of the attributes of the nodes in the provenance graph, a temporal relationship between edges of the nodes, and attention parameters between different roles; and S4, converting an obtained attributed and temporal random walk sequence into an embedded vector to extract a feature of the provenance graph, and performing intrusion anomaly detection. The present invention can implement deep representation learning on provenance data, reduce the workload of detection model training, and improve the accuracy and efficiency of intrusion detection.

Classes IPC  ?

• H04L 9/40 - Protocoles réseaux de sécurité

Abrégé

A method, system and processor for enhancing robustness of a source-code classification model based on invariant features is provided, wherein the method includes: combining non-robustness features to generate different style templates, converting codes in an input code training set into new codes of different styles to obtain a converted-code training set, merging the input-code and the converted-code training set into an expanded training set, and converting code texts in the expanded training set into code images; and converting the code images into required vectors, pairing samples of identical class randomly picked from the expanded training set and inputting the matched sample pairs into a feature extractor, iteratively updating the feature extractor and the matched sample pairs and extracting target characteristics, and training the extracted invariant features in a classifier to produce a trained model. The disclosed system includes a training set-expanding module and a model-training module.

Classes IPC  ?

• G06F 8/73 - Documentation de programme
• G06V 10/764 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant la classification, p. ex. des objets vidéo

Abrégé

Disclosed are free-form curved surface slicing method and device based on implicit model, includes following: (1) Using mesh model of layered curved surface to intersect with implicit model of a part to be manufactured to obtain contour lines; (2) Comparing rules for intersecting contour lines and meshes within mesh, mesh coordinates are substituted into implicit model, obtaining a position of an intersection point of contour lines in corresponding mesh; (3) Using interpolation method to calculate intersection coordinates of contour lines and mesh boundary, specifying storing sequence of interpolation points, storing intersection points of discrete line segments in mesh; (4) Merging unordered point sets obtained to establish topological relationship between point sets and discrete line segments, each line segment corresponds to two endpoints, each endpoint corresponds to two line segments, based on above, all points traversed will be connected into complete and ordered profile, that is sliced profile.

Classes IPC  ?

• G06T 17/20 - Description filaire, p. ex. polygonalisation ou tessellation
• B33Y 50/00 - Acquisition ou traitement de données pour la fabrication additive

Abrégé

The present invention discloses a provenance graph-oriented host intrusion detection method and system, and a storage medium, which relates to the field of cyber security. The method includes: S1, acquiring provenance data of a host to be tested, to construct a provenance graph representing user behaviors; S2, mapping nodes in the provenance graph to roles, constructing a node feature matrix composed of feature vectors which can be used to represent attribute features, structural features, and inter-node interactive relationship of the nodes in the provenance graph, and mapping nodes having similar feature vectors to the same role; S3, performing an attention-guided attribute temporal random walk by comprehensively considering attributes of the nodes in the provenance graph, the temporal relationship between edges, and an attention parameter between different roles; and S4, converting the acquired attribute temporal random walk sequence into an embedding vector to extract a feature of the provenance graph, and performing intrusion anomaly detection. The present invention can perform deep representation learning on provenance data, reduce the workload of training a detection model, and improve the accuracy and efficiency of intrusion detection.

Classes IPC  ?

• G06F 21/55 - Détection d’intrusion locale ou mise en œuvre de contre-mesures

Abrégé

Disclosed are a method for processing and recycling an ultrathin lithium foil and a product, which belongs to the field of lithium-ion batteries. According to the disclosure, a liquid-phase thinning agent is adopted to perform a contact reaction with a lithium metal, the fabricated ultrathin lithium foil has a thickness of 20 μm or less, the surface is flat, the thickness can be randomly regulated, and the uniformity is good. The method of the disclosure can also recycle a lithium-containing byproduct generated in the preparation process. When the ultrathin metal lithium foil prepared by the disclosure is used as a metal lithium negative electrode of a lithium battery, the energy density of the battery can be improved, and the battery manufacturing cost is reduced. The ultrathin metal lithium foil can also be used to supplement lithium for other types of electrode materials, thereby a broad application prospect is achieved.

Classes IPC  ?

• C23F 1/14 - Compositions aqueuses
• C01D 7/06 - Préparation par l'intermédiaire d'un carbonate magnésien de sodium ou de potassium
• C01D 15/08 - CarbonatesBicarbonates
• C22B 3/20 - Traitement ou purification de solutions, p. ex. de solutions obtenues par lixiviation
• C22B 26/12 - Obtention du lithium
• H01M 4/1395 - Procédés de fabrication d’électrodes à base de métaux, de Si ou d'alliages
• H01M 4/02 - Électrodes composées d'un ou comprenant un matériau actif
• H01M 4/134 - Électrodes à base de métaux, de Si ou d'alliages

Abrégé

x1-x1-x, wherein 2%

Classes IPC  ?

• H10N 70/00 - Dispositifs à l’état solide n’ayant pas de barrières de potentiel, spécialement adaptés au redressement, à l'amplification, à la production d'oscillations ou à la commutation

Abrégé

ii, i=1, ..., K, i≠u}, N is the number of dimensions of the interfered user channel space, and [formula 2] represents channel state information of an i-th terminal user, M is the total number of antennas on a network device side, K is the total number of terminal users that perform communications, and M≥K; capturing the first M-N rows of a matrix UHuuuu represents channel state information of a u-th terminal user, and the superscript H represents conjugate transposition; capturing the first M-N rows and the first M-N columns of a matrix UHZU, so as to obtain a matrix Ξ, wherein [formula 4], a matrix [formula 5], and an element in Z represents a coupling coefficient of any two antennas; and performing calculation to obtain a precoding matrix [formula 6] of the u-th terminal user, wherein [formula 7]. The spectral efficiency and capacity of a system can be significantly improved, thereby meeting the increasing communication requirements.

Classes IPC  ?

• H04B 7/0456 - Sélection de matrices de pré-codage ou de livres de codes, p. ex. utilisant des matrices pour pondérer des antennes

Abrégé

The disclosure provides a quasi-dynamic in situ ellipsometry method and system for measuring a photoresist exposure process. The method includes: obtaining a measured Muller matrix of a photoresist at different exposure times by a Muller matrix ellipsometer; building a forward optical model of the photoresist and obtaining a theoretical Mueller matrix; inverting and fitting the measured Mueller matrix and the theoretical Mueller matrix and obtaining ellipsometric parameters of the photoresist at different times, an average extinction coefficient, and a film thickness; building a relational model of a Dill parameter of the photoresist and optical properties of the photoresist, and an exposure model of the photoresist; building a relational model of a theoretical extinction coefficient and the extinction coefficient and obtaining theoretical extinction coefficients of the photoresist after different exposure times; and inverting and fitting the average extinction coefficient and the theoretical extinction coefficient and obtaining the Dill parameter.

Classes IPC  ?

• G03F 7/00 - Production par voie photomécanique, p. ex. photolithographique, de surfaces texturées, p. ex. surfaces impriméesMatériaux à cet effet, p. ex. comportant des photoréservesAppareillages spécialement adaptés à cet effet
• G01N 21/21 - Propriétés affectant la polarisation

Abrégé

Disclosed are a masked modeling-based method for constructing a three-dimensional (3D) medical image segmentation model and an application thereof, belonging to the field of medical image segmentation. The method comprises: establishing a semi-supervised learning network comprising a student network and a teacher network, wherein the student network comprises a coding module for extracting a potential feature and a segmentation decoder for predicting a segmentation result, and the teacher network comprises a coding module and a segmentation decoder which have the same structure as the student network; and training the semi-supervised learning network, during the training, two random mask operations being performed on each image, then images being inputted into two networks, the weight of the student network being optimized and updated according to a training loss function, and then the weight being migrated to the teacher network, wherein the training loss function comprises a prototype representation loss for representing the difference between prototypes extracted and generated by the two networks, and the student network may further comprise a reconstruction decoder and an auxiliary segmentation decoder. The present method can improve the robustness, generalization performance and accuracy of a 3D medical image segmentation model when there are scarce samples.

Classes IPC  ?

• G06T 7/10 - DécoupageDétection de bords
• G06V 10/26 - Segmentation de formes dans le champ d’imageDécoupage ou fusion d’éléments d’image visant à établir la région de motif, p. ex. techniques de regroupementDétection d’occlusion
• G06N 3/0895 - Apprentissage faiblement supervisé, p. ex. apprentissage semi-supervisé ou auto-supervisé

Abrégé

A control method, a control device and a wind farm system for a wind turbine frequency support are provided. The control method includes the following: calculating a comprehensive inertia power value by using a wind farm frequency modulation capability level coefficient when a frequency accident occurs in the wind farm; obtaining a real-time rotational speed of each wind turbine to calculate a state factor that changes in real time, where each wind turbine adjusts a state reference power value of its own by exchanging the state factor with a neighboring wind turbine; and determining instantaneous stator power of each wind turbine by using a MPPT part corresponding to the rotational speed, the comprehensive inertia power value, and the state reference power value, so as to control each wind turbine to perform frequency support until a predetermined frequency support time is reached.

Classes IPC  ?

• F03D 7/04 - Commande automatiqueRégulation
• F03D 17/00 - Surveillance ou test de mécanismes moteurs à vent, p. ex. diagnostics

Abrégé

A method for establishing a three-dimensional ultrasound image blind denoising model and a use thereof include: adding a speckle noise to three-dimensional biological structure images of a same size and without speckle noise to obtain a training data set; establishing a three-dimensional denoising network based on an encoding-decoding structure, wherein the encoding structure is used to obtain N feature maps of a three-dimensional input image and perform a downsampling to obtain feature maps of different scales; the decoding structure is used to take a feature map obtained by the encoding structure as an input and reconstruct a three-dimensional image without speckle noise through upsampling; dividing the encoding-decoding structure into a plurality of stages by a downsampling structure and an upsampling structure; training the three-dimensional denoising network using the training data set to obtain a three-dimensional ultrasound image blind denoising model.

Classes IPC  ?

• G06T 5/60 - Amélioration ou restauration d'image utilisant l’apprentissage automatique, p. ex. les réseaux neuronaux
• G06T 5/70 - DébruitageLissage

Abrégé

The disclosure discloses a thermal reawakening operation method and system for enhancing polarization of a hafnium-based ferroelectric film, belonging to the field of micro-nanoelectronic technology, which includes the following. S1. Heating is performed on the hafnium-based ferroelectric thin film. S2. A pulse voltage having multiple cycles is applied to the hafnium-based ferroelectric thin film. S3.The hafnium-based ferroelectric thin film is cooled to an initial temperature. In the disclosure, through the thermal reawakening operation, a certain amount of oxygen vacancies are generated, and the non-polarized phase is transformed into the polarized phase, the polarization value of the hafnium-based ferroelectric film can be significantly improved at a low cost and with a simple operation, thereby the performance of the hafnium-based ferroelectric device is significantly improved.

Classes IPC  ?

• H10N 30/045 - Traitements afin de modifier une propriété piézo-électrique ou électrostrictive, p. ex. les caractéristiques de polarisation, de vibration ou par réglage du mode par polarisation
• H01L 29/51 - Matériaux isolants associés à ces électrodes

Abrégé

Disclosed are an OTS-based dynamic storage structure and an operation method thereof. The OTS-based dynamic storage structure includes a plurality of storage units distributed in an array, and each storage unit includes an OTS gating transistor and a storage capacitor. The OTS gating transistor has two states, namely, high resistance state and low resistance state. When the voltage across the OTS gating transistor exceeds the threshold voltage Vth, the OTS gating transistor is switched from the high resistance state to the low resistance state. When the voltage across the OTS gating transistor in the low resistance state is lower than the holding voltage Vhold, the OTS gating transistor is switched from the low resistance state to the high resistance state.

Classes IPC  ?

• G11C 13/00 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage non couverts par les groupes , ou

Abrégé

The disclosure provides a method for ptychography position correction based on probe weighting. The method includes: collecting diffraction light field intensity information and simultaneously initializing information functions of illumination probes and a sample to be tested and probe positions; obtaining and importing an exit wave into a propagation model to obtain a simulated diffraction light field and replacing the diffraction light field intensity information to obtain an updated diffraction light field; importing the updated diffraction light field into a backpropagation model and obtaining a diffraction exit wave and updating the information functions of the sample to be tested and the illumination probes at each scan position; and forming a probe matrix around the probe positions, updating the probe positions after calculating a correlation, and repeating the above steps to iterate until the predetermined number of iterations is completed or a predetermined condition is reached.

Classes IPC  ?

• G02B 21/06 - Moyens pour éclairer un échantillon
• G02B 21/36 - Microscopes aménagés pour la photographie ou la projection

Abrégé

A nonlinear optical device includes two coupling systems. A coupling coefficient between the two coupling systems is regulated and controlled. During operation, the pump light input from a straight waveguide is coupled into the second coupling system through the first coupling system and obtains great resonance enhancement in the second coupling system, so it is ensured that the second coupling system is in a high energy state. For signal light input from the same end of the straight waveguide, the signal light enters a resonator of the second coupling system through the coupling between the first and second coupling systems. A nonlinear effect of the system mainly occurs in the resonator of the second coupling system because in the resonator of the second coupling system, the pump light is in a great resonance enhancement. The entire resonator is in a high energy state.

Classes IPC  ?

• G02F 1/35 - Optique non linéaire

Abrégé

A high-speed and large-current adjustable pulse circuit, an operating circuit and an operating method of a phase-change memory are provided. The high-speed and large-current adjustable pulse circuit is provided with a clamping structure, a current mirror structure and a leakage current shutdown structure. The clamping structure including a clamping operational amplifier and a first MOS transistor is configured to generate a reference current. The current mirror structure is configured to generate an output current proportional to the reference current. The leakage current shutdown structure is configured to turn off the current mirror structure and reduce leakage current when pulse disappear. In this way, a device with an adjustable current and a reduced leakage current is realized.

Classes IPC  ?

• G11C 11/00 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage électriques ou magnétiques particuliersÉléments d'emmagasinage correspondants
• G11C 13/00 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage non couverts par les groupes , ou

Abrégé

A method and system for encryption and assured deletion of information is provided, the method at least includes: sorting fields of the information into at least two sensitivity levels by sensitivity; generating encryption keys and key shards thereof based on predetermined thresholds, and creating mapping between targets and the key shards, based on the encryption keys for the sensitivity levels, encrypting the information fields of the corresponding sensitivity levels and deleting the original information and encryption keys; and in response to reception of a recover request, recovering the encryption keys based on the key shards and performing decryption, so as to recover the original information. The present disclosure aims at the problem that information is difficult to be safely stored and assuredly deleted, and realizes multi-party security key deletion of encrypted personal information.

Classes IPC  ?

• H04L 9/08 - Répartition de clés
• H04L 9/32 - Dispositions pour les communications secrètes ou protégéesProtocoles réseaux de sécurité comprenant des moyens pour vérifier l'identité ou l'autorisation d'un utilisateur du système

Abrégé

A method and system for automatic deletion of information based on time synchronization and trusted counting is provided, the method including: defining different data structures including configurations in a normalized manner; setting triggering conditions for automatic information deletion, including conditions for automatic deletion based on time synchronization and/or based on trusted counting; maintaining synchrony of the configurations across different domains; and after satisfying the triggering conditions, making an information source domain and/or an information propagation domain perform the automatic information deletion. Considering that existing data deletion mechanisms cannot delete information according to preset retention periods, the present application employs synchrony across system clocks to perform automatic deletion of authorization information under circulation after a certain time period, and further limits a circulation count for information of interest so as to ensure that the information and its copies are all deleted after reaching a preset maximum permittable circulation count.

Classes IPC  ?

• G06F 16/27 - Réplication, distribution ou synchronisation de données entre bases de données ou dans un système de bases de données distribuéesArchitectures de systèmes de bases de données distribuées à cet effet

Abrégé

The present invention relates to a Biochemical-Level Automatic-screening Smart droplet-TO-micro-hydrogels chip (BLASTO-chip) system for sperm selection. The BLASTO-chip technology advances sperm selection from the primitive morphology level to a more sophisticated biochemical level, and it will not only provide a powerful tool to patients who have fertility problems but also work as a platform for further development of more advanced sperm selection technologies. The present invention also provides a method for improving the success rate of in vitro fertilization in a patient with asthenospermia.

Classes IPC  ?

• C12M 3/06 - Appareillage pour la culture de tissus, de cellules humaines, animales ou végétales, ou de virus avec des moyens de filtration, d'ultrafiltration, d'osmose inverse ou de dialyse
• C12M 1/12 - Appareillage pour l'enzymologie ou la microbiologie avec des moyens de stérilisation, filtration ou dialyse
• C12M 1/26 - Inoculateur ou échantillonneur
• C12M 1/36 - Appareillage pour l'enzymologie ou la microbiologie comportant une commande sensible au temps ou aux conditions du milieu, p. ex. fermenteurs commandés automatiquement
• C12M 3/00 - Appareillage pour la culture de tissus, de cellules humaines, animales ou végétales, ou de virus
• C12N 5/076 - Cellules du spermeSpermatogonies

Abrégé

An additive manufacturing method and device for a complex structure of a fiber reinforced composite material. The complex structure is a skin-honeycomb sandwich structure. The manufacturing method comprises: printing a supporting mold with a water-soluble resin material by means of a fused deposition modeling process; placing a fiber reinforced prepreg on the supporting mold by means of an automatic fiber placement process with the aid of laser heating and constant-force rolling, so as to form a lower-layer skin structure; printing the fiber reinforced composite material on the surface of the lower-layer skin structure by means of the fused deposition modeling process, so as to form a honeycomb structure; performing placement again on the honeycomb structure to form an upper-layer skin structure; and removing the supporting mold to obtain the skin-honeycomb sandwich structure. A complex structure of a fiber reinforced composite material, such as the skin-honeycomb sandwich, for aerospace purposes can be quickly manufactured without molds. Compared with traditional manufacturing methods, the present method greatly reduces the time and cost for manufacturing parts while ensuring mechanical properties.

Classes IPC  ?

• B29C 64/165 - Procédés de fabrication additive utilisant une combinaison de matériaux solides et liquides, p. ex. une poudre avec liaison sélective par liant liquide, catalyseur, inhibiteur ou absorbeur d’énergie
• B29C 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
• B29C 70/44 - Façonnage ou imprégnation par compression pour la fabrication d'objets de longueur définie, c.-à-d. d'objets distincts utilisant une pression isostatique, p. ex. moulage par différence de pression, avec un sac à vide, dans un autoclave ou avec un caoutchouc expansible

Abrégé

The invention introduces a lattice current collector with both functions of strain sensing and high-temperature circuit breaking and a manufacturing method thereof. The method includes: S1: constructing a model of a three-dimensional lattice substrate; S2: taking a mixed powder as a raw material, performing printing according to the constructed model of the three-dimensional lattice substrate based on additive manufacturing technology to obtain the three-dimensional lattice substrate, the mixed powder including a flexible polymer powder and a permanent magnetic powder; S3: performing surface treatment on the three-dimensional lattice substrate, preparing a liquid metal, and transferring the liquid metal to a surface of the three-dimensional lattice substrate to form a conductive network; S4: magnetizing the three-dimensional lattice substrate to obtain a magnetic three-dimensional lattice substrate current collector, i.e., a lattice current collector with both functions of strain sensing and high-temperature circuit breaking.

Classes IPC  ?

• B22F 5/10 - Fabrication de pièces ou d'objets à partir de poudres métalliques caractérisée par la forme particulière du produit à réaliser d'articles avec des cavités ou des trous, non prévue dans les sous-groupes précédents
• B22F 1/10 - Poudres métalliques contenant des agents lubrifiants ou liantsPoudres métalliques contenant des matières organiques
• B22F 10/12 - Formation d’un corps vert par photopolymérisation, p. ex. stéréolithographie [SLA] ou traitement numérique de la lumière [DLP]
• B22F 10/28 - Fusion sur lit de poudre, p. ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
• H01M 4/72 - Grilles

Abrégé

A method and system for overwriting-based deletion of information and verification of deletion is provided, wherein the method at least includes: receiving a deletion request and/or a random seed; performing fine-grained overwriting on the information by means of random overwriting; in response to an extraction request for a post-deletion state, making a master node in a source domain of the information broadcast the extraction request to at least one slave node; and sending the post-deletion state fed back by the slave node and a related state-verification parameter to a verifying terminal, so that the verifying terminal verifies an overwriting result based on a verifiable pseudo-random function. Thus, the present application can effectively prevent information recovery after being logically deleted, and efficaciously ensure verifiability as well as non-recoverability of deleted information, thereby assuring non-recoverable deletion and providing verifiability of deletion to information subjects.

Classes IPC  ?

• G06F 16/16 - Opérations sur les fichiers ou les dossiers, p. ex. détails des interfaces utilisateur spécialement adaptées aux systèmes de fichiers
• G06F 21/60 - Protection de données

Abrégé

The present invention belongs to the field of magnetic suspension bearing control. Disclosed are a switch short-circuit fault tolerance control method and system for a magnetic suspension bearing. An N-axis magnetic suspension bearing comprises 2N H-half-bridge driving topologies, 2N windings, and one direct current voltage source. During normal system operation, the current of each winding and a modulation wave value outputted by a current loop are monitored in real time. When a short-circuit fault of a switch device occurs, the faulty switch device is identified by determining the value of the current of each winding and the corresponding modulation wave value outputted by the current loop. By introducing a physical model of the electromagnetic force of the magnetic suspension bearing, the current of the corresponding winding is redistributed to reconstruct the required electromagnetic force, which ensures the normal suspension of a rotor, thereby preventing serious faults such as system shutdown due to rotor dropout. The described method may effectively prevent instability of a magnetic suspension bearing system during a switch short-circuit fault, prevent rotor dropout, and equip the magnetic suspension bearing system with the capability of fault-tolerant operation during a switch short-circuit, thereby effectively improving the reliability of the system.

Classes IPC  ?

• F16C 32/04 - Paliers non prévus ailleurs faisant usage de moyens de support magnétiques ou électriques

Abrégé

A glycosylation method with participation of a trivalent iodine reagent. The method is characterized in that a glycosyl donor (I) is activated in the presence of a trivalent iodine reagent and a transition metal catalyst, and then reacts with an acceptor (II) under acid catalysis or directly reacts to obtain a glycosylation product (III). In the glycosyl donor (I), Gly is glycosyl, one or more hydroxyl groups on the sugar ring of which are protected by a protecting group; X is an oxygen, sulfur or selenium atom; R is an alkyl or aryl; and the receptor (II) is selected from saccharide, alcohol, phenol, flavonoid, carboxylic acid, phosphoric acid, pyrimidine, purine, amide, sulfonamide, guanidine, arylamine, indole, silyl enol ether, mercaptan or thiophenol nucleophilic reagents containing one or more free hydroxyl groups.

Classes IPC  ?

• C07H 15/18 - Radicaux acycliques substitués par des carbocycles
• C07H 15/04 - Radicaux acycliques non substitués par des structures cycliques liés à un atome d'oxygène d'un radical saccharide
• C07H 15/203 - Carbocycles monocycliques autres que des cycles cyclohexaneSystèmes carbocycliques bicycliques
• C07H 17/04 - Radicaux hétérocycliques contenant uniquement des atomes d'oxygène comme hétéro-atomes du cycle
• C07H 19/01 - Composés contenant un hétérocycle partageant un hétéro-atome du cycle avec un radical saccharideNucléosidesMononucléotidesLeurs anhydro-dérivés partageant un oxygène
• C07H 1/00 - Procédés de préparation des dérivés du sucre
• C07D 309/10 - Atomes d'oxygène

Abrégé

The present invention belongs to the technical field of permanent magnet reluctance motors. Disclosed is a permanent magnet reluctance motor rotor having low-torque pulsation. The rotor is formed by combining a first lamination and a second lamination which are formed by a same punching sheet, a plurality of layers of magnetic barriers and permanent magnets being arranged under each pole, and for the first lamination, the tail ends of all layers of the magnetic barriers of the rotor on one side of a q-axis being respectively deviated by a certain angle relative to the other side. By means of horizontally overturning the first lamination by 180 degrees, the second lamination is obtained, the shape of a magnetic barrier of the second lamination under a single pole being in mirror-symmetric to that of the first lamination with respect to the q-axis. The amplitudes and phases of torque harmonics of the same number of times of the two kinds of laminations are different, and superimposing and combining of the two according to a certain proportion allows the permanent magnet reluctance motor to have a larger average torque while reducing torque pulsations. The present invention can achieve suppression of torque harmonics of a specific number of times, so as to reduce torque pulsation of motors. The present invention has important significance for improving the performance of permanent magnet reluctance motors and expanded uses thereof.

Classes IPC  ?

• H02K 1/276 - Aimants encastrés dans le noyau magnétique, p. ex. aimants permanents internes [IPM]
• H02K 1/28 - Moyens de montage ou de fixation des parties magnétiques tournantes sur ou aux structures constituant le rotor
• H02P 25/098 - Dispositions pour réduire les ondulations du couple

Abrégé

u=U u*.

Classes IPC  ?

• H04B 7/0456 - Sélection de matrices de pré-codage ou de livres de codes, p. ex. utilisant des matrices pour pondérer des antennes
• H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission

Abrégé

A method and system for recognizing TLS fingerprints based on finite-state machines is provided, wherein the system at least includes: a model inference module, for learning state machine models of target TLS implementations according to mapping information sent by a message mapping module; a fingerprint extracting module, for analyzing the state machine models and extracting multi-level fingerprints of the target TLS implementations; and a version recognizing module, for verifying the multi-level fingerprints for validity and/or recognizing version information of unknown TLS implementations. As compared to other network protocol identification systems, the present disclosure can identify and judge fine-grained information such as the specific implementation type and version of the specific TLS implementation. At the same time, the inventive method is highly automated, thereby ensuring good usability and scalability.

Classes IPC  ?

• H04L 9/40 - Protocoles réseaux de sécurité

Abrégé

z, in which the M element is at least one of In, Ga, Al, and Zn, and 0.1≤x≤0.9, 0.02≤y≤0.15, and 0≤z≤0.2. The problems of safety and stability of the existing material selection for the selector are solved by the selector material, the selector unit, and the preparation method thereof provided by the disclosure. In addition, the threshold voltage of the selector device prepared based on the Se-based selector material is adjustable, and the comprehensive performance is good.

Classes IPC  ?

• H10N 70/00 - Dispositifs à l’état solide n’ayant pas de barrières de potentiel, spécialement adaptés au redressement, à l'amplification, à la production d'oscillations ou à la commutation
• H10B 63/00 - Dispositifs de mémoire par changement de résistance, p. ex. dispositifs RAM résistifs [ReRAM]

Abrégé

A method and system for trusted third-party audit of personal-information deletion is provided, wherein the method includes: acquiring log data of an arbitrary source-domain personal-information deleting body in a network and of its associated-domain personal-information deleting bodies; normalizing the log data according to predetermined parsing rules and thereby generating normalized log data; and performing consistency-of-notification analysis and operation-compliance analysis on the normalized log data by means of association analysis. The present application is based on an audit analysis of log files to identify whether the information deletion process conforms to the multi-dimensional or multi-level audit judgment conditions and to perform forensics on abnormal deletion of personal information in a timely manner, so as to ensure that personal-information deletion can satisfy requirements of internal control, industrial standards, policies and regulations.

Classes IPC  ?

• G06F 21/62 - Protection de l’accès à des données via une plate-forme, p. ex. par clés ou règles de contrôle de l’accès

Abrégé

A method and system for deleting multi-copy personal data efficiently and securely is provided, wherein the personal data and its subject identifier are signed and uploaded to data domains and stored as personal data copies; the personal data copies along with its source and destination data are circulated among the data domains; the data domain receiving a deletion instruction transmits the deletion instruction to every relevant data domains based on the identifier of the personal data subject and the destination data and then performs deletion; and after completing the deletion, the data domain deposit its domain identifier and feedback data it receives into a log, and feed the log back to its superior data domain. And the system of the present disclosure includes a plurality of data domains that can perform the above operations, thereby realizing association-based storage, association-based deletion and verification of association-based deletion of multi-copy personal data.

Classes IPC  ?

• G06F 21/62 - Protection de l’accès à des données via une plate-forme, p. ex. par clés ou règles de contrôle de l’accès
• H04L 9/08 - Répartition de clés
• H04L 9/32 - Dispositions pour les communications secrètes ou protégéesProtocoles réseaux de sécurité comprenant des moyens pour vérifier l'identité ou l'autorisation d'un utilisateur du système

Abrégé

A system and method for acceleration of deep-learning computing with edge-terminal collaboration is provided, wherein the system includes at least one terminal device and at least one edge server. The terminal device is configured to, when being present in a service coverage of the at least one edge server, determine an inter-layer partitioning and/or intra-layer partitioning policy for a deep learning model based on first configuration information related to the terminal device itself and second configuration information related to the edge server. And the edge server is configured to execute the inter-layer partitioning and/or intra-layer partitioning policy for the deep learning model in response to an inference request message, so as to implement collaborative inference. In the present disclosure, by using the load-based random forest method to predict the execution time for the DNN model, more accurate prediction results can be obtained.

Classes IPC  ?

• G06N 3/092 - Apprentissage par renforcement
• G06N 20/20 - Techniques d’ensemble en apprentissage automatique

Abrégé

Provided in the present invention are a cavitation-erosion-resistant laser cladding material, and the use thereof in the surface repair of a flow passage component of a hydropower station. The material comprises the following components, in percentages by weight: 55-70% of cobalt, 15-32% of chromium, 1-5% of tungsten, 10-20% of a metal nano oxide, 1-10% of a carbon powder and the balance of manganese and/or molybdenum. Since ceramic particles are added to the material and are fused with metal-based powder, a coating obtained after laser cladding has the properties of high chemical stability, a high hardness, wear resistance, etc. of ceramic and also has the strength and toughness of a metal, such that better cavitation erosion resistance and erosion resistance are achieved.

Classes IPC  ?

• C23C 24/10 - Revêtement à partir de poudres inorganiques en utilisant la chaleur ou une pression et la chaleur avec formation d'une phase liquide intermédiaire dans la couche
• C22C 19/07 - Alliages à base de nickel ou de cobalt, seuls ou ensemble à base de cobalt

Abrégé

A method for incremental metapath storage and dynamic maintenance is provided, which includes, reformatting metapath instances, from a designated heterogeneous graph and of a designated metapath type, into path graphs; executing graph updating tasks and performing dynamic maintenance on the updated path graphs, traversing the path graph to obtain the location of metapath updates and update the path graph; for metapaths with length greater than 2 and with symmetrical central portion, central merge operation is performed to simplify path graph and perform subsequent restoration operation; and directly perform restoration operation on path graphs that do not meet the merging conditions. The present disclosure utilizes characteristics of graph update to obtain locality of metapath updates, and combines internal relationship characteristics of metapath instances to greatly speed up metapath generation and achieve real-time inference of dynamic heterogeneous graph models.

Classes IPC  ?

• G06F 16/901 - IndexationStructures de données à cet effetStructures de stockage
• G06F 40/30 - Analyse sémantique

Abrégé

A Y-branch type phase-change all-optical Boolean logic device comprises a waveguide of a Y-branch structure and phase change function units covered over the waveguide. In the logic implementation method, a light pulse having a large power is employed to perform a write operation on the phase change function unit, so that the phase change function unit is heated to generate a crystallization or amorphization phase change, thereby causing a difference in optical properties under two states; the state of the phase change function unit is read by employing a light pulse having a small power, and the state of its phase change material is not changed. By defining input logic signals respectively and defining three operation steps, an operation mode reconfigurable logic can be implemented, and all 16 binary Boolean logic calculations are implemented in a simple structure by means of step-by-step operation.

Classes IPC  ?

• G02F 3/02 - Dispositifs bistables optiques
• G11C 13/00 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage non couverts par les groupes , ou
• H03K 19/173 - Circuits logiques, c.-à-d. ayant au moins deux entrées agissant sur une sortieCircuits d'inversion utilisant des éléments spécifiés utilisant des circuits logiques élémentaires comme composants

Abrégé

The disclosure discloses a magnetic levitation planar motor workbench having a double-layer winding of coarse and fine drive, which belongs to the technical field of planar motors, and includes a stator and a mover. The vertically magnetized permanent magnets and the horizontally magnetized permanent magnets in the stator are arranged in a Halbach arrangement; the mover is located on the enhanced side of the air gap magnetic field above the stator. The mover adopts the double-layer winding of unequal heights, and the height of the upper first winding is smaller than the lower second winding. Each layer of winding may generate driving forces in six directions to achieve six-degree-of-freedom driving.

Classes IPC  ?

• H02K 41/03 - Moteurs synchronesMoteurs pas à pasMoteurs à réluctance
• H01L 21/68 - Appareils spécialement adaptés pour la manipulation des dispositifs à semi-conducteurs ou des dispositifs électriques à l'état solide pendant leur fabrication ou leur traitementAppareils spécialement adaptés pour la manipulation des plaquettes pendant la fabrication ou le traitement des dispositifs à semi-conducteurs ou des dispositifs électriques à l'état solide ou de leurs composants pour le positionnement, l'orientation ou l'alignement
• H02N 15/00 - Dispositifs de maintien ou de lévitation utilisant l'attraction ou la répulsion magnétique, non prévus ailleurs

Abrégé

The present disclosure provides a data storage system, including data cache module, data processing module, and a persistent memory. The data cache module includes an on-chip mapping data cache and an on-chip counter cache, where the mapping data cache is configured to cache mapping data, and when the free space of the mapping data cache is less than a preset threshold, the least recently used mapping data cache line will be evicted from the cache and written back to the persistent memory. The data processing module encrypts/decrypts persistent memory data by using their counters, and accesses the persistent memory blocks indicated by their corresponding mapping data. The persistent memory comprises the first and second storage regions for the latest checkpoint data and modified working data in the current checkpoint interval respectively.

Classes IPC  ?

• G06F 12/0804 - Adressage d’un niveau de mémoire dans lequel l’accès aux données ou aux blocs de données désirés nécessite des moyens d’adressage associatif, p. ex. mémoires cache avec mise à jour de la mémoire principale

Abrégé

A method and a system for ship stability prediction by weighted fusion of RBFNN and random forest based on GD are provided. Firstly, input characteristics when predicting failure probabilities under different failure modes are determined through prior knowledge. Secondly, a mean square error of k-fold cross-validation is used as performance evaluation criterion of the RBFNN and the RF to search for model capacities of the RBFNN and the RF. Then, network parameters of the RBFNN are updated. Multiple random sample sets are generated using a bootstrap sampling method and are parallelly trained to generate multiple regression trees. A Gini index is used as an attribute division index, and a prediction result of the random forest is obtained. Finally, weight coefficients are introduced for weighted fusion of prediction results of the RBFNN and the RF. The weight coefficient is obtained by solving through iterative optimization of the gradient descent.

Classes IPC  ?

• G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p. ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle
• B63B 39/00 - Installations pour diminuer le tangage, le roulis ou autres mouvements similaires indésirables du navireAppareils pour indiquer l'assiette du navire
• B63B 71/00 - Conception des naviresPrévision de leurs performances
• G06N 3/09 - Apprentissage supervisé
• B63B 43/04 - Amélioration de la sécurité des navires, p. ex. contrôle des avaries, non prévue ailleurs réduisant le risque de chavirer ou de sombrer par augmentation de la stabilité

Abrégé

This disclosure relates to a dielectric layer response-based field effect transistor photodetector, comprising a gate, a photoelectric response composite dielectric layer, a carrier transport layer, a source, and a drain. The composite dielectric layer is formed by compounding a photoelectric response dielectric and a charge blocking insulating dielectric; the carrier transport layer is used for transporting electrons or holes, the photoelectric response dielectric is used for absorbing light under illumination to generate electrons, holes or excitons, and the charge blocking insulating dielectric is used for limiting passage of the electrons, holes or excitons. The generation of photogenerated electrons, holes or excitons in the composite dielectric layer and the movement of the photogenerated electrons, holes or excitons limited within the photoelectric response dielectric cause the equivalent permittivity of the composite dielectric layer to change, causing changes in carrier concentration and conductivity of the carrier transport layer and achieving photoelectric detection.

Classes IPC  ?

• H01L 31/113 - Dispositifs sensibles au rayonnement infrarouge, visible ou ultraviolet caractérisés par un fonctionnement par effet de champ, p.ex. phototransistor à effet de champ à jonction du type conducteur-isolant-semi-conducteur, p.ex. transistor à effet de champ métal-isolant-semi-conducteur
• H10K 30/65 - Dispositifs à effet de champ sensibles à la lumière, p. ex. phototransistors

Abrégé

The disclosure belongs to the technical field of capsule robotics, and in particular, relates to a magnetically driven capsule robot with controllable drug administration and sampling functions and a fabrication method thereof. A magnetically driven capsule robot provided by the disclosure includes a robot body and a magnetic field-driven control module. The robot body includes a capsule shell, two ends of the capsule shell are provided with hollow air chambers, and a carrier chamber is disposed between the hollow air chambers disposed on the two ends. A substance transfer channel, a magnetic lock disposed around the substance transfer channel, and a magnetic soft switch valve matched with the magnetic lock are disposed on a side wall of the carrier chamber. The soft valve automatically closes due to the magnetic attraction force between the lock and valve, and can be flexibly opened under a magnetic torque acting on the valve.

Classes IPC  ?

• A61M 31/00 - Dispositifs pour l'introduction ou la rétention d'agents, p. ex. de remèdes, dans les cavités du corps
• A61M 39/22 - Soupapes ou agencement de soupapes

Abrégé

Systems, methods, devices and storage media for graph data processing are provided. In one aspect, a graph data processing system includes a memory and a plurality of processing units, and each processing unit is provided with a decision module. Each processing unit is configured to determine set operations required for extracting one or more subgraphs matching a specified graph pattern from target graph data according to a preset graph pattern matching algorithm. Then, for each set operation, the decision module is configured to determine a cost value corresponding to a performance of the processing unit occupied to execute the set operation in accordance with different execution policies, and further select a target execution policy with a smallest cost value to execute the set operation.

Classes IPC  ?

• G06F 16/901 - IndexationStructures de données à cet effetStructures de stockage

Abrégé

The present invention relates to the field of information storage. Disclose are a computing in memory system based on a memristor, and an online deep learning method. The computing in memory system comprises a storage module and a controller; the storage module comprises a plurality of Tiles, each Tile comprises a plurality of PEs, and each PE comprises one or more memristor arrays; the controller is used for executing a mapping table-based cross-array wear-leveling strategy, comprising: classifying every M writes into one wear-leveling period; maintaining the total number of writes TWC and the number of writes IWC in the wear-leveling period for each PE; and circularly executing the following steps: setting the IWC of each PE to be 0; accumulating the number of writes of the array of the PE at an operation stage and recording same to IWC until the current wear-leveling period ends; accumulating the IWC of each PE to the corresponding TWC; reconstructing a mapping table, so that the larger the IWC is, the smaller the TWC corresponding to a physical ID mapped by a corresponding logic ID is; and carrying out data exchange. The present invention can improve the wear-leveling effect in the computing in memory system based on a memristor, thereby prolonging the overall service life of the system.

Classes IPC  ?

• G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement
• G06N 3/063 - Réalisation physique, c.-à-d. mise en œuvre matérielle de réseaux neuronaux, de neurones ou de parties de neurone utilisant des moyens électroniques
• G06N 3/084 - Rétropropagation, p. ex. suivant l’algorithme du gradient

Abrégé

The present invention belongs to the field of superconducting magnet design, and relates to a superconducting magnet mechanical modeling analysis method, which comprises: constructing a superconducting magnet material structure model, solving for thermal stress and electromagnetic stress generated in the processes of magnet cooling and operation, and analyzing the magnet for danger zones having the greatest amount of stress; constructing a material structure model of a danger zone coil, solving for thermal stress caused by coil winding stress and cooling, using same as a prestress in solving for the electromagnetic stress of coil operation, and analyzing to find the position of a strip bearing the greatest amount of stress; constructing a strip mechanical model, and using as load inputs the circumferential stress and radial stress of each layer of the superconducting coil strip which is under the greatest amount of stress; using as constraints the stress and strain of inner and outer strips of the superconducting coil with regard to a strip to be researched, solving for the stress received by the strip, analyzing strip delamination, and analyzing strip tearing along the length direction. The invention uses a superconducting coil mechanical model as a bridge for detecting and evaluating the mechanical failure of single superconducting strips and the overall failure of superconducting magnet performance.

Classes IPC  ?

• G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu
• G06F 111/04 - CAO basée sur les contraintes
• G06F 119/14 - Analyse des forces ou optimisation des forces, p. ex. forces statiques ou dynamiques
• G06F 119/02 - Analyse de fiabilité ou optimisation de fiabilitéAnalyse de défaillance, p. ex. performance dans le pire scénario, analyse du mode de défaillance et de ses effets [FMEA]

Abrégé

The present disclosure relates to the technical field of heat dissipation for electronic devices, and discloses a manifold microchannel heat sink based on directional optimization of hotspot areas, including a power module, a heat dissipation substrate, a cold source device, and a diverter manifold; the heat dissipation substrate is arranged on the power module, a microchannel is provided on a side of the heat dissipation substrate away from the power module and on a back of a heat generating area of the power module for carrying the power module and dissipating heat from the power module. According to the manifold microchannel heat sink based on the directional optimization of hotspot areas, the local heat dissipation performance of the power module may be preliminarily changed by optimizing the microchannel on the heat dissipation substrate, which avoids poor heat dissipation temperature uniformity in a multi-heat source system.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

A memristor-based in-memory logic circuit and in-memory logic computation system, and applications, pertaining to the technical field of integrated circuits, are provided. The in-memory logic circuit includes: a first memory cell and a second memory cell connected in parallel to each other, and a sense amplifier for generating a logic operation result. The two memory cells include memristors and MOSFET selectors connected in series. Resistance states of the two memristors are used to represent a first group of logic input signals, and voltage signals applied by gates of the two MOSFET selectors are used to represent a second group of logic input signals. Also provided are an in-memory logic computation system and applications.

Classes IPC  ?

• G11C 11/4091 - Amplificateurs de lecture ou de lecture/rafraîchissement, ou circuits de lecture associés, p. ex. pour la précharge, la compensation ou l'isolation des lignes de bits couplées
• G11C 11/408 - Circuits d'adressage
• G11C 11/4096 - Circuits de commande ou de gestion d'entrée/sortie [E/S, I/O] de données, p. ex. circuits pour la lecture ou l'écriture, circuits d'attaque d'entrée/sortie ou commutateurs de lignes de bits

Abrégé

2 (c=−0.2 to 0.2, d=0.01 to 0.5) materials have Curie temperature of 330 K to 367 K and 320 K to 345 K, and the saturation magnetic moments are 50 emu/g to 57.2 emu/g and 80 emu/g to 88.5 emu/g, respectively.

Classes IPC  ?

• C01B 19/00 - SéléniumTellureLeurs composés
• B82Y 25/00 - Nanomagnétisme, p. ex. magnéto-impédance, magnétorésistance anisotropique, magnétorésistance géante ou magnétorésistance à effet tunnel
• C30B 9/06 - Croissance des monocristaux à partir de bains fondus utilisant des solvants fondus par refroidissement du bain en utilisant un des constituants du cristal solvant
• C30B 29/46 - Composés contenant du soufre, du sélénium ou du tellure
• H01F 1/147 - Alliages caractérisés par leur composition
• B82Y 40/00 - Fabrication ou traitement des nanostructures

Abrégé

The present invention relates to the field of medical health monitoring. Disclosed in the present invention is an on-skin sensing system for detecting blood flow status in a postoperative flap and reconstructed limb, the system including a front-end status detection module and a back-end signal processing and outputting module. The front-end status detection module acquires, in real time, blood oxygen saturation and temperature statuses of postoperative flaps and reconstructed limbs. The front-end status detection module uses a flexible packaging layer to package a printed circuit board, and after the surface of the flexible package layer is chemically treated, a pre-polymerized hydrogel solution is injected to carry out cross-linking to obtain a hydrogel adhesive layer, thereby ensuring long-time close attachment to the skin while avoiding bacterial infection on the surface of the skin. The back-end signal processing and outputting module processes blood oxygen saturation and temperature data, and transmits the data to a mobile terminal in real time. The present invention enables on-line monitoring of the blood flow health status of postoperative flaps and reconstructed limbs. When the blood oxygen saturation of the human body is below a normal value or when temperature and pulse signals are abnormal, the mobile terminal will trigger an alarm function, promptly alerting medical staff and the patient.

Classes IPC  ?

• A61B 5/0295 - Mesure du débit sanguin utilisant la pléthysmographie, c.-à-d. par mesure des variations du volume d'une partie du corps induites par la circulation du sang qui traverse cette partie, p. ex. pléthysmographie par impédance
• A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
• A61B 5/01 - Mesure de la température de parties du corps
• A61B 5/0205 - Évaluation simultanée de l'état cardio-vasculaire et de l'état d'autres parties du corps, p. ex. de l'état cardiaque et respiratoire
• A61B 5/024 - Mesure du pouls ou des pulsations cardiaques
• A61B 5/1455 - Mesure des caractéristiques du sang in vivo, p. ex. de la concentration des gaz dans le sang ou de la valeur du pH du sang en utilisant des capteurs optiques, p. ex. des oxymètres à photométrie spectrale

Abrégé

The present invention discloses a method for determining a tooth magnetic flux density ratio and an optimal split ratio of a motor, relating to the field of motor design. The method includes: under the condition that different numbers of series turns per slot are given, performing analytic calculation to acquire a plurality of stator slot area and current density curves with a motor split ratio being an independent variable; using a magnetic flux density ratio to acquire tooth and yoke thicknesses of a motor when at different split ratios, acquiring a model of the motor, and then performing finite element simulation on the motor model to acquire a plurality of average torque curves with the motor split ratio being an independent variable; acquiring a motor split ratio corresponding to the maximum value of each average torque curve, and substituting the same into a corresponding current density curve to acquire current density at maximum average torque for the different number of series turns per slot; and acquiring a motor split ratio when maximum current density is not exceeded and the average torque is at maximum, and using the same as the optimal split ratio of the motor. In the present invention, the optimal split ratio of a motor is rapidly and accurately determined by means of finite element simulation in combination with analytic calculation.

Classes IPC  ?

• G06F 30/17 - Conception mécanique paramétrique ou variationnelle
• H02K 19/10 - Moteurs synchrones pour courant polyphasé

Abrégé

The present disclosure relates to the technical field of medicines, and particularly relates to an immune preparation, a composition comprising the immune preparation and a use thereof, and a preparation method. an immune adjuvant provided by the present disclosure is an erythrocyte-derived vesicle, and the erythrocyte-derived vesicle has an erythrocyte content and a biofilm structured wrapped outside the erythrocyte content as a whole, and the two are matched with each other, so that the erythrocyte-derived vesicle serves as an endogenous substance of the body to activate an immune system of the body and effectively enhance a cellular immune response. Moreover, in this process, no toxic or side effect is caused to the body, and the method has the advantages of high biocompatibility, safe raw material source and simple preparation process.

Classes IPC  ?

• A61K 39/39 - Préparations médicinales contenant des antigènes ou des anticorps caractérisées par les additifs immunostimulants, p. ex. par les adjuvants chimiques
• A61K 39/00 - Préparations médicinales contenant des antigènes ou des anticorps
• A61P 37/04 - Immunostimulants

Abrégé

A method for operating a dynamic memory is provided, and the method includes the following steps. A refresh operation is performed on the dynamic memory according to predetermined interval time T, an operation command is received in real time at the same time, a read operation is performed on a selected memory cell according to position information of the selected memory cell in the operation command when the operation command is received, and state data read in the read operation is temporarily stored in a read buffer. The interval time T is less than time t required for a voltage value of a capacitor in the memory cell to drop to a critical capacitor voltage value for the read operation to correctly read the state data of the memory cell during a write operation. According to operation command type information in the operation command, corresponding operations are performed on the selected memory cell.

Classes IPC  ?

• G11C 11/4093 - Dispositions d'interface d'entrée/sortie [E/S, I/O] de données, p. ex. mémoires tampon de données
• G11C 11/406 - Organisation ou commande des cycles de rafraîchissement ou de régénération de la charge
• G11C 11/4096 - Circuits de commande ou de gestion d'entrée/sortie [E/S, I/O] de données, p. ex. circuits pour la lecture ou l'écriture, circuits d'attaque d'entrée/sortie ou commutateurs de lignes de bits

Abrégé

The disclosure belongs to the field of image segmentation in medical image processing and discloses a three-dimensional medical image segmentation method and system based on short-term and long-term memory self-attention models, in which the method can segment a target area image in the medical image, which includes the following. (1) A training set sample is established. (2) Processing is performed on the original three-dimensional medical image to be segmented to obtain a sample to be segmented. (3) A three-dimensional medical image segmentation network based on short-term and long-term memory self-attention is established and trained. (4) The sample to be segmented is input to the network, and then a segmentation result of the target area in the sample to be segmented is output. By combining CNN and Transformer, a new model for accurate real-time segmentation of the target area (such as a tumor) in the three-dimensional medical image is obtained.

Classes IPC  ?

• G06T 7/00 - Analyse d'image
• G06T 3/4046 - Changement d'échelle d’images complètes ou de parties d’image, p. ex. agrandissement ou rétrécissement utilisant des réseaux neuronaux
• G06T 7/11 - Découpage basé sur les zones
• G06T 7/143 - DécoupageDétection de bords impliquant des approches probabilistes, p. ex. la modélisation à "champs aléatoires de Markov [MRF]"
• G16H 30/40 - TIC spécialement adaptées au maniement ou au traitement d’images médicales pour le traitement d’images médicales, p. ex. l’édition

Abrégé

A tin-based perovskite thin film employing stress control, a preparation method therefor, and a photoelectric device are provided. The preparation method includes placing a tin-based perovskite solution film and a ligand solution in the same chamber, making a degree of vacuum of the chamber lower than 1,000 Pa by performing air pumping, and then stopping air pumping, wherein the ligand solution is a solution containing an amino or mercapto functional group; maintaining the chamber to be in a closed state, so that tin-based perovskite is complexed with a solvent to form a mesophase solid film with an ability to resist thermal stress impact, the ligand solution continues to be volatilized to fill the chamber to form a ligand atmosphere, and the ligand is combined with the uncoordinated tin ion in the mesophase solid film to reduce surface defects; and taking out the mesophase solid film and annealing.

Classes IPC  ?

• H10K 71/16 - Dépôt d'une matière active organique en utilisant un dépôt physique en phase vapeur [PVD], p. ex. un dépôt sous vide ou une pulvérisation cathodique
• H10K 30/50 - Dispositifs photovoltaïques [PV]
• H10K 85/50 - Pérovskites organiquesPérovskites hybrides organiques-inorganiques [HOIP], p. ex. CH3NH3PbI3

Abrégé

Disclosed is a selective field-assisted machining system. The system includes a micron-level high-speed identification module, an in-situ laser assisted module, an ultrasonic vibration module, an energy field loading high-speed control module, and a diamond tool. The micron-level high-speed identification module is used to quickly identify the type of a material substrate of a workpiece to be processed, process the identification information into a corresponding control signal, and send same to the energy field loading high-speed control module to implement selective processing of the workpiece to be processed, i.e. to process brittle particles using in-situ laser assisted machining and to process a soft metal substrate using ultrasonic vibration processing. In the present invention, ultra-precision cutting of brittle particles and a soft metal substrate can be completed at the same time in a single processing process.

Classes IPC  ?

• B23P 25/00 - Traitement auxiliaire des pièces, avant ou pendant les opérations d'usinage, afin de faciliter l'action de l'outil ou d'obtenir pour les pièces l'état final désiré, p. ex. la réduction des contraintes internes
• B23K 26/00 - Travail par rayon laser, p. ex. soudage, découpage ou perçage
• B23P 23/00 - Machines ou agencements de machines réalisant des combinaisons déterminées de différentes opérations d'usinage, non couverts par une seule autre sous-classe

Abrégé

The present invention relates to a blockchain-based system and method for preventing unauthorized deletion of surveillance video, the system at least comprising: a plurality of camera components, for generating surveillance video; at least one video-recording node, for connecting to a blockchain network and randomly generating a key pair, splitting the video file received from the camera components into a plurality of video-file blocks and randomly sending them to participation nodes across the blockchain network for storage, and recording hash values of the stored video files and node information; and a blockchain network device, for updating the hash values of the video files uploaded by the video-recording nodes based on a smart contract. In the present invention, uploading and storing time for camera-videos is recorded by the smart contract as tamper-resistant time reference for law enforcement, protecting video data from malicious deletion at video-recording nodes without the need of redundant space.

Classes IPC  ?

• G06F 21/62 - Protection de l’accès à des données via une plate-forme, p. ex. par clés ou règles de contrôle de l’accès
• H04N 5/76 - Enregistrement du signal de télévision

Abrégé

The disclosure discloses a low-loss transmission line structure, which belongs to the field of radio frequency transmission lines and includes at least two metal layers stacked in a vertical manner. A dielectric layer is filled between the metal layers. The metal layers include a signal transmission strip in a middle portion. Ground strips are provided on both sides of the signal transmission strip. Through holes are evenly distributed on the dielectric layer, and the signal transmission strips on each of the metal layers are connected through the through holes to form a signal transmission line. The ground strips on each metal layer are connected through the through holes.

Classes IPC  ?

• H01P 3/00 - Guides d'ondesLignes de transmission du type guide d'ondes
• H01P 3/08 - MicrorubansTriplaques
• H05K 1/02 - Circuits imprimés Détails

Abrégé

An FPGA-based method and system for accelerating graph construction is provided, the method including: sampling neighborhood of each vertex in stored data and recording a traversal order of the vertices; according to the vertex traversal order, grouping the vertices into blocks and processing them by block-granularity, so as to at least obtain distance values between each two sampled neighbors of vertices in each block; according to the said distance values, updating neighborhoods of the two relevant vertices; and processing all of the blocks, starting a new iteration, until a satisfying precision or a predetermined limit of the number of iterations has been reached. The present disclosure utilizes the advantages of FPGA platform including flexibility, low power consumption and high parallelism, combined with the characteristics of graph construction algorithm, thereby greatly improving construction speed and reducing processing power consumption, so as to enable large-scale graph construction task processing in the datacenter.

Classes IPC  ?

• G06F 16/901 - IndexationStructures de données à cet effetStructures de stockage

Abrégé

Disclosed are an annular capacitor-based three-dimensional 1S1C memory, and a preparation method. The memory comprises: a horizontal peripheral electrode layer, a vertical functional layer and a capacitor dielectric layer. The peripheral electrode layer comprises a first dielectric layer and a first metal electrode layer which are alternately stacked and grown on the substrate; multiple grooves penetrating in the vertical direction are formed in the peripheral electrode layer; multiple holes penetrating in the vertical direction are formed in the peripheral electrode layer, an annular groove being provided outside each hole, surrounding the hole and vertically intersecting the peripheral electrode layer, and the annular groove being uniformly filled with a capacitor dielectric layer; the top of a second metal electrode layer extends to the surface of the topmost first dielectric layer, forming a bit line electrode and connecting to a bit line, and a region of the second metal electrode layer directly opposite the first metal electrode layer forms a storage unit. The present invention reduces the number of etching steps in the preparation of a capacitor. The preparation of all capacitor units only requires etching once and depositing the primary capacitor dielectric layer, improving the yield of capacitor preparation.

Classes IPC  ?

• H10B 12/00 - Mémoires dynamiques à accès aléatoire [DRAM]
• H10N 97/00 - Dispositifs électriques à l’état solide à film mince ou à film épais, non prévus ailleurs

Abrégé

Provided is use of a recombinant protein in preparing a drug for inhibiting aneurysm, which belongs to the field of biomedicine. Provided is a recombinant protein AGGF1 for use in preparing a drug for inhibiting aneurysm. The recombinant AGGF1 protein, by means of a receptor integrin α7 thereof, can inhibit the TGF-β1 signaling pathway and vascular remodeling. Therefore, the recombinant AGGF1 protein inhibits aneurysm by inhibiting TGF-β1 synthesis and a signaling pathway thereof, and the recombinant protein achieves the inhibition of aneurysm by improving the structure and functions of blood vessels.

Classes IPC  ?

• A61K 38/16 - Peptides ayant plus de 20 amino-acidesGastrinesSomatostatinesMélanotropinesLeurs dérivés
• A61K 45/06 - Mélanges d'ingrédients actifs sans caractérisation chimique, p. ex. composés antiphlogistiques et pour le cœur
• A61K 31/4418 - Pyridines non condenséesLeurs dérivés hydrogénés ayant un carbocycle lié directement à l'hétérocycle, p. ex. cyproheptadine
• A61P 35/00 - Agents anticancéreux

Abrégé

A partition design and molding method for an acetabular cup prosthesis with a porous surface includes the following: modeling of a spherical shell of an acetabular cup; cutting of the spherical shell of the acetabular cup into equal parts; integrated design on a porous layer of a surface of the partitioned acetabular cup prosthesis; reorganization of the partitioned acetabular cup prosthesis; construction of a hemispherical acetabular cup prosthesis; and 3D printing and manufacturing of the acetabular cup prosthesis. Through the disclosure, the formed porous layer is perpendicular to the surface of the acetabular cup, so favorable mechanical properties are provided. A fully interconnected branch-rod structure is provided, and there is no isolated rod, so that inflammation or even re-revision led by the detachment of isolated rods during long-term postoperative activities is prevented.

Classes IPC  ?

• A61F 2/34 - Coques acétabulaires
• A61F 2/30 - Articulations

Abrégé

A porous-surface acetabular cup prosthesis partition design and molding method, pertaining to the related technical field of orthopedic medical instruments. The method comprises: modeling of a spherical acetabular cup housing; equal partition cutting of the spherical acetabular cup housing; integrated design of a porous layer on surfaces of the partitioned acetabular cup prostheses; reassembly of the partitioned acetabular cup prostheses; construction of a hemispherical acetabular cup prosthesis; and 3D printing manufacturing of an acetabular cup prosthesis. The porous layer of the acetabular cup formed by means of the method is perpendicular to the surface of the acetabular cup; the acetabular cup has excellent mechanical properties, and has completely interconnected branch rod structures without isolated rods, thereby avoiding inflammations and even re-revision caused by the detachment of the isolated rods during long-term postoperative activities. In addition, the porous layer can be of a porous structure in any shape and is very conveniently formed on the surface of the acetabular cup, can be designed for the pore size and porosity for promoting bone ingrowth, and meets the requirements of the acetabular cup prosthesis implant with long service life and high biocompatibility.

Classes IPC  ?

• A61F 2/34 - Coques acétabulaires
• B33Y 50/00 - Acquisition ou traitement de données pour la fabrication additive

Abrégé

A pneumatic soft dexterous hand for a patient with missing finger functions and a soft robot relate to the technical field of soft robots. The pneumatic soft dexterous hand includes a soft finger, the soft finger includes a rubber casing, a silicone tube, an endoskeleton, and a built-in air bag, and the silicone tube is sleeved in the rubber shell. The silicone tube is formed with a chamber, and the endoskeleton and the built-in airbag are arranged in the silicone tube. The endoskeleton includes a plurality of skeleton modules hinged together, the plurality of the skeleton modules are divided into two groups, and the skeleton modules of the two groups are hinged in an alternating manner in sequence from left to right. The built-in airbag is embedded on the endoskeleton to support the endoskeleton.

Classes IPC  ?

• A61F 2/58 - CoudesPoignets
• A61F 2/68 - Moyens d'actionnement ou de commande

Abrégé

A sample-difference-based method and system for interpreting a deep-learning model for code classification is provided, wherein the method includes a step of off-line training an interpreter: constructing code transformation for every code sample in a training set to generate difference samples; generating difference samples respectively through feature deletion and code snippets extraction and then calculating feature importance scores accordingly; and inputting the original code samples, the difference samples and the feature importance scores into a neural network to get a trained interpreter; and a step of on-line interpreting the code samples: using the trained interpreter to extract important features from the snippets, then using an influence-function-based method to identify training samples that are most contributive to prediction, comparing the obtained important features and the most contributive training samples, and generating interpretation results for the object samples. The inventive system includes an off-line training module and an on-line interpretation module.

Classes IPC  ?

• G06F 8/35 - Création ou génération de code source fondée sur un modèle
• G06F 8/41 - Compilation

Abrégé

102122 is used as an output of a computation result. In the present invention, the switch characteristic of a transistor in a 1T1R structure is fully utilized in terms of a logic algorithm, and the steps of realizing a complete Boolean logic function can be controlled to have two steps by dynamically configuring input voltages on a wordline WL and a source control end, such that the non-volatile Boolean logic operation efficiency can be improved with fewer operation steps and a fixed circuit topological structure.

Classes IPC  ?

• G11C 13/00 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage non couverts par les groupes , ou

Abrégé

A lower surface of the printing platform is provided with a displacement device, and the displacement device is used to rotate the printing platform horizontally and adjust a pitch angle of the printing platform. The additive device is located above the printing platform and is connected to one end of the robotic arm, and the additive device is provided with a pressing roller. The robotic arm includes rotating joints used to drive the additive device to print and melt a fiber tow on the printing platform according to a predetermined path. The fiber pulling device is disposed on the printing platform to grab the reinforced fiber and make it cross-weave with the horizontally printed fiber tow on the horizontal plane. When working, the pressing roller is always perpendicular to the printing platform to press the melted fiber tow and the reinforced fiber cross-woven with the fiber tow.

Classes IPC  ?

• B29C 64/245 - Plates-formes ou substrats
• B29C 64/165 - Procédés de fabrication additive utilisant une combinaison de matériaux solides et liquides, p. ex. une poudre avec liaison sélective par liant liquide, catalyseur, inhibiteur ou absorbeur d’énergie
• B29C 64/209 - TêtesBuses
• B29C 64/236 - Moyens d’entraînement pour un mouvement dans une direction dans le plan d’une couche
• B29C 64/241 - Moyens d’entraînement pour mouvement rotatif
• B33Y 10/00 - Procédés de fabrication additive
• B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet

Abrégé

A flow electrode capacitive deionization system for recycling phosphorus from a leachate from a phosphogypsum stock and simultaneously desalting brine and a method, relating to the technical field of wastewater treatment and recycling. The flow electrode capacitive deionization system comprises an electrodeionization phosphorus removal module and an electrodeionization desalting module; a first flow electrode liquid storage chamber (9), an electrodeionization phosphorus removal module anode flow electrode chamber (3), and an electrodeionization desalting module cathode flow electrode chamber (11) are circularly communicated, and a second flow electrode liquid storage chamber (10), an electrodeionization phosphorus removal module cathode flow electrode chamber (7), and an electrodeionization desalting module anode flow electrode chamber (15) are circularly communicated, so as to form two independent flow electrode liquid circulation loops. A leachate from a phosphogypsum stock enters the electrodeionization phosphorus removal module, phosphate migrates to the electrodeionization phosphorus removal module anode flow electrode chamber (3), then migrates to the electrodeionization desalting module cathode flow electrode chamber (11), and is desorbed and enriched into a flow electrode liquid via reverse voltage; and a phosphorus-rich solution and a ferrous solution react under an oxygen-free condition to generate ferrous phosphate.

Classes IPC  ?

• C02F 1/469 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par séparation électrochimique, p. ex. par électro-osmose, électrodialyse, électrophorèse
• C02F 1/42 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par échange d'ions
• C01B 25/37 - Phosphates des métaux lourds

Abrégé

The present invention relates to the field of image segmentation in medical image processing. Disclosed are a long short-term memory self-attention model-based three-dimensional medical image segmentation method and system. The three-dimensional medical image segmentation method can segment a target region image in a medical image, and comprises the following steps: (1) creating a training set sample; (2) processing an original three-dimensional medical image to be segmented to obtain a sample to be segmented; (3) constructing a long short-term memory self-attention model-based three-dimensional medical image segmentation network and training the network; and (4) inputting the sample to be segmented into the network, so as to output a segmentation result of a target region in the sample to be segmented. According to the present invention, a CNN and Transformer are integrated to obtain a new model for real-time accurate segmentation of a target region (such as a tumor) in a three-dimensional medical image, and a learning policy similar to memory forgetting and updating is used, so that the segmentation accuracy of a complex tumor in a medical image is particularly improved.

Classes IPC  ?

• G06V 10/26 - Segmentation de formes dans le champ d’imageDécoupage ou fusion d’éléments d’image visant à établir la région de motif, p. ex. techniques de regroupementDétection d’occlusion

Abrégé

The disclosure belongs to the technical field of additive manufacturing, and discloses a flexible piezoelectric sensor based on 4D printing. The sensor includes a magnetic part and a conductive part, wherein: the conductive part includes two substrates disposed opposite to each other and a spiral structure disposed between the two substrates. Both the two substrates and the spiral structure are made of conductive metal materials. The magnetic part has a flexible porous structure and is arranged between the two substrates to generate a magnetic field. When the two substrates are subjected to external pressure, the spiral structure and the magnetic part are compressed simultaneously, the magnetic flux passing through the spiral structure changes, and the voltage of the two substrates changes, by measuring the voltage change of the two substrates to reflect the change of external pressure, the pressure measuring process is achieved.

Classes IPC  ?

• B29C 64/386 - Acquisition ou traitement de données pour la fabrication additive
• B22F 10/18 - Formation d’un corps vert par mélange de liant avec du métal sous forme de filaments, p. ex. par fabrication à filaments fondus
• B22F 10/28 - Fusion sur lit de poudre, p. ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
• B22F 10/38 - Commande ou régulation des opérations pour obtenir des caractéristiques spécifiques du produit, p. ex. le lissage de la surface, la densité, la porosité ou des structures creuses
• B22F 12/30 - Plate-formes ou substrats
• B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p. ex. par frittage ou fusion laser sélectif
• B29C 64/307 - Manipulation du matériau destiné à être utilisé en fabrication additive
• B33Y 80/00 - Produits obtenus par fabrication additive
• H10N 30/30 - Dispositifs piézo-électriques ou électrostrictifs à entrée mécanique et sortie électrique, p. ex. fonctionnant comme générateurs ou comme capteurs
• H10N 30/80 - Détails de structure
• H10N 35/80 - Détails de structure

Abrégé

The present invention provides a fast-curing molding process for epoxy resin. The method includes the following steps: S1, mixing epoxy resin A glue and a protein-grafted manganese-zinc-iron oxide nanomaterial well into a colloidal state, and grounding the mixture for 10 to 30 min; S2, adding epoxy resin B glue to the mixed colloid in S1, and performing ultrasonic dispersion at 20 to 30° C. for 10 to 30 min; and S3, placing the mixture obtained after ultrasonic dispersion in S2 in a vacuum environment for 20 to 40 min, then taking the mixture out and injecting the mixture into a mold, placing the mold and the mixed colloid into an electromagnetic induction heater, placing the electromagnetic induction heater in a magnetic field environment with a magnetic field intensity of 1 to 1.5 mT for 2 to 3 h, cooling and then taking them out to obtain the cured epoxy resin.

Classes IPC  ?

• B29C 35/08 - Chauffage ou durcissement, p. ex. réticulation ou vulcanisation utilisant l'énergie ondulatoire ou un rayonnement corpusculaire
• B29C 39/00 - Moulage par coulée, c.-à-d. en introduisant la matière à mouler dans un moule ou entre des surfaces enveloppantes sans pression significative de moulageAppareils à cet effet
• B29C 39/38 - Chauffage ou refroidissement
• B29K 63/00 - Utilisation de résines époxy comme matière de moulage
• B29K 505/12 - Fer

Abrégé

The present disclosure belongs to the technical field of power electronic converters, and discloses a method and a system for predicting a junction temperature of a power semiconductor module in the full life cycle and a terminal. The method includes the steps: arranging an NTC thermistor network to monitor the temperature of each area inside the power module when the power module works; obtaining data for training the neural network by utilizing finite element simulation or experiments, and building a neural network model among the temperature of the NTC resistor network, a water flow rate, an aging factor and the junction temperature of the chip under working conditions. The present disclosure improves the junction temperature prediction accuracy of areas with relatively large errors comprehensively and realizes the high-precision junction temperature prediction under all working conditions.

Classes IPC  ?

• G01K 7/22 - Mesure de la température basée sur l'utilisation d'éléments électriques ou magnétiques directement sensibles à la chaleur utilisant des éléments résistifs l'élément étant une résistance non linéaire, p. ex. une thermistance
• G01K 15/00 - Test ou étalonnage des thermomètres

Abrégé

The present invention relates to the field of micro-nano-structure enhanced heat transfer surfaces. Provided are a 3D-printing-assisted method for preparing a multi-scale metal three-dimensional surface structure, and a product. The method comprises: preparing a micron-scale high-precision three-dimensional structure mask by means of 3D printing technology, wherein the three-dimensional structure mask comprises a hollow portion and a body portion, and the hollow portion matches a three-dimensional structure model; and performing material conversion on a metal substrate on which the three-dimensional structure mask is fixed, so as to obtain a target metal, wherein the metal substrate may be machined first, and the surface of the target metal is provided with a three-dimensional structure that matches the three-dimensional structure model. In the 3D-printing-assisted method for preparing a multi-scale metal three-dimensional surface structure provided by the embodiments of the present invention, the precision of a metal structure is improved by improving the precision of the mask, and a multi-scale and multi-material heat exchange structure having micron-scale precision and a complex structure is prepared on the metal surface, such that the metal phase transformation heat-exchange efficiency is improved.

Classes IPC  ?

• C25D 1/00 - Galvanoplastie
• B33Y 10/00 - Procédés de fabrication additive
• B33Y 80/00 - Produits obtenus par fabrication additive
• F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes

Abrégé

A wireless power transmission apparatus and an imaging device comprising the same are disclosed. The wireless power transmission apparatus comprises: a first annular structure(10), provided with a first magnetic core assembly and a first framework(11), wherein the first magnetic core assembly is provided on a circumference of the first annular structure(10), the first framework(11) is wound with a first winding(12), and the first winding(12) passes through a window(311) of the magnetic core(31) in the first magnetic core assembly; and a second annular structure(20), provided with a second framework(21), wherein the second framework(21) is wound with a second winding(22), and the second winding(22) passes through the window(311) of the magnetic core(31) in the first magnetic core assembly; and the first winding(12) is used for receiving an alternating voltage and transmitting the alternating voltage to the second winding(22).

Classes IPC  ?

• H05G 1/02 - Détails de structure
• H05G 1/08 - Détails électriques
• A61B 6/02 - Agencements pour établir un diagnostic dans des plans différents successifsDiagnostic stéréoscopique utilisant des radiations

Abrégé

An electrically-controllable color filter array based on a phase-change material, and an artificial vision system. The filter array comprises a plurality of color filter units; each color filter unit comprises a metal layer (10), a bottom transparent conductive layer (20), a chalcogenide phase-change material layer (30), and a top transparent conductive layer (40); the red, green and blue filter function of each color filter unit is adjusted according to the thickness of the bottom transparent conductive layer (20) and the top transparent conductive layer (40); in the color filter units arranged in the array, the top transparent conductive layers (40) in each row of color filter units are connected to a bit line (BL), and the bottom transparent conductive layers (20) in each column of color filter units are connected to a word line (WL); the state transition of the chalcogenide phase-change material layer (30) in each color filter unit is realized by adjusting an electric pulse applied to the BL and the WL where the electric pulse is present. The present invention has the effects of non-volatility, oxidation resistance, and low crosstalk while having a stable structural color, integrates the filter and storage functions, and can effectively improve the processing speed of an image sensor.

Classes IPC  ?

• H04N 23/55 - Pièces optiques spécialement adaptées aux capteurs d'images électroniquesLeur montage
• H04N 25/44 - Extraction de données de pixels provenant d'un capteur d'images en agissant sur les circuits de balayage, p. ex. en modifiant le nombre de pixels ayant été échantillonnés ou à échantillonner en lisant partiellement une matrice de capteurs SSIS
• H04N 5/72 - Modification de l'aspect de l'image de télévision par des filtres optiques ou des écrans diffusants
• G02B 27/09 - Mise en forme du faisceau, p. ex. changement de la section transversale, non prévue ailleurs

Abrégé

The present invention relates to the field of wireless communications. Disclosed are a multi-carrier backscatter communication method, apparatus and system. The method comprises: a base station transmits an excitation signal; a backscatter tag uses an optional reflection coefficient to fit a multi-carrier modulated baseband signal, switches an impedance network to scatter the excitation signal transmitted by the base station, and generates a multi-carrier modulated backscatter signal; and a receiver receives the backscatter signal and demodulates the backscatter signal. According to the present invention, a backscatter tag can send a multi-carrier signal, and frequency selective fading can be effectively combated, so that the communication rate is greatly improved.

Classes IPC  ?

• H04L 27/34 - Systèmes à courant porteur à modulation de phase et d'amplitude, p. ex. en quadrature d'amplitude

Abrégé

A tin-based perovskite thin film based on stress regulation. A preparation method therefor comprises: placing a tin-based perovskite liquid film and a ligand solution in the same chamber, performing air suction to make the vacuum degree of the chamber be lower than 1000 Pa, and then stopping air suction, wherein the ligand solution is a solution containing amino or sulfydryl functional groups; keeping the chamber in a closed state, complexing tin-based perovskite and a solvent to form an intermediate phase solid film with thermal stress impact resistance, continuously volatilizing the ligand solution to fill up the chamber so as to form a ligand atmosphere, and combining the ligand with uncoordinated tin in the intermediate phase solid film to reduce surface defects; and taking out the intermediate phase solid film and then annealing same. By adjusting the stress impact in two steps and seizing the timing of a defect treatment, the ligand is combined with uncoordinated tin in the intermediate phase solid film during vacuum drying to weaken dangling bonds and defects on the surface of perovskite; and then annealing is performed, such that the resulting lattice distortion caused during the annealing is reduced, and the quality of a tin-based perovskite thin film is finally improved.

Classes IPC  ?

• H10K 85/50 - Pérovskites organiquesPérovskites hybrides organiques-inorganiques [HOIP], p. ex. CH3NH3PbI3
• H10K 30/40 - Dispositifs organiques sensibles au rayonnement infrarouge, à la lumière, au rayonnement électromagnétique de plus courte longueur d'onde ou au rayonnement corpusculaire comprenant une structure p-i-n, ayant p. ex. un absorbeur pérovskite entre des couches de transport de charge de type p et de type n
• H10K 71/00 - Fabrication ou traitement spécialement adaptés aux dispositifs organiques couverts par la présente sous-classe

Abrégé

The present invention relates to the field of superconducting electrical engineering modeling. Disclosed are an electromagnetic, thermal and mechanics multi-field coupling simulation modeling method and system for a superconducting magnet. The method comprises: carrying out geometric modeling on a superconducting magnet, and adding corresponding physical properties to each material; simulating a cooling environment in the operation process of the superconducting magnet according to a cooling mode used by the superconducting magnet; respectively carrying out modeling on an electromagnetic field, a temperature field, and a mechanics field; by taking the critical current density of a superconducting strip affected by electromagnetic, thermal and mechanics fields as a coupling link, in combination with an internal thermal expansion module, realizing multi-field coupling of the superconducting magnet; and carrying out mesh generation on an established geometric model, and carrying out model solving by providing a two-step solver. According to the present invention, the current propagation, magnetic field distribution, magnet temperature rise, alternating current loss, and stress distribution in the operation process of a superconducting magnet can be calculated at the same time; the present invention is used for stability analysis and verification of electromagnetic, thermal, mechanics and other aspects in superconducting magnet design, improves the modeling efficiency, and has great significance for ensuring the stable operation of superconducting magnets.

Classes IPC  ?

• H01F 6/00 - Aimants supraconducteursBobines supraconductrices
• G06F 30/23 - Optimisation, vérification ou simulation de l’objet conçu utilisant les méthodes des éléments finis [MEF] ou les méthodes à différences finies [MDF]

Abrégé

A real-time vector analysis method for detecting an optical signal with a bandwidth greater than 1 THz includes: mapping, by a time-lens focusing system, a spectrum of a signal under test to different temporal location information; obtaining, by fully broadening an ultrashort pulse by a dispersion, a time domain spectrum of the ultrashort pulse to form a chirped swept frequency source; inputting an out of the signal under test after passing through the time-lens and the chirped swept frequency source to a coherent receiver to realize an interference process and a conversion of an optical signal to an electrical signal, and recovering an intensity information and a phase information of frequency domain of the signal under test from the electrical signal by data acquisition and processing; then recovering a full-field information of time domain of the signal under test by a Fourier inverse transform.

Classes IPC  ?

• H04B 10/64 - Hétérodynes
• H04B 10/073 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal hors service

Abrégé

Disclosed is a modeling simulation system for plasma control, comprising: an interactive modeling environment module and a parameter configuration component, configured to represent and construct a plasma control model and a response model; a simulation engine, configured to invoke a calculation code of a simulation element or perform a simulation calculation by using a solver, and transmit calculated simulation results back to users; a system library, comprising a basic library and a customization library; a device manager, configured to extend a communication interface by using a simulation element to support a communication between models and external systems and guarantee message synchronization.

Classes IPC  ?

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

Abrégé

The present disclosure provides a drop impact prediction method and system for heavy equipment airdrop based on a neural network. The drop impact prediction method includes the following steps: S1: acquiring a plurality of sets of sample data by using a finite element model for drop simulation of heavy equipment airdrop; S2: determining structural parameters of a BP neural network, and pre-processing the structural parameters; S3: constructing a BP neural network model; and S4: predicting a drop impact situation of heavy equipment airdrop in an actual application process by using the trained BP neural network model.

Classes IPC  ?

• G06N 3/08 - Méthodes d'apprentissage
• G06N 5/022 - Ingénierie de la connaissanceAcquisition de la connaissance

Abrégé

The present invention relates to a Si-containing high-strength and low-modulus medical titanium alloy, and an additive manufacturing method and use thereof. The additive manufacturing method comprises alloy ingredient design, powder preparation, model construction and substrate preheating, and additive manufacturing molding; wherein the Si-containing high-strength and low-modulus medical titanium alloy is designed in the ingredient proportion of Ti 60-70 at. %, Nb 16-24 at. %, Zr 4-14 at. %, Ta 1-8 at. %, Si 0.1-5 at. %. The principle of the present invention is design of a medical β-type titanium alloy having high-strength and low-modulus and good biocompatibility by using d-electron theory; reducing the difference of thermal expansion between the silicide and the β-Ti phase by preheating, and at the same time, ensuring that there is a sufficient degree of cooling in the additive manufacturing process to promote the transition of the alloy from the divorced eutectic reaction to the precipitation reaction, thereby solving the common problems, such as the deterioration of mechanical properties caused by the continuous distribution of the Si-containing phase along the grain boundary and the cracking caused by the difference of thermal expansion coefficient between different phases.

Classes IPC  ?

• B22F 10/28 - Fusion sur lit de poudre, p. ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
• B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
• B22F 10/366 - Paramètres de balayage, p. ex. distance d’éclosion ou stratégie de balayage

Abrégé

An ionic liquid/polymer composite film, and a preparation method therefor and a use thereof. The preparation method for the ionic liquid/polymer composite film comprises: uniformly mixing a polymer base material with an unsaturated double bond-containing ionic liquid monomer by means of a good solvent to obtain a casting solution, wherein the polymer base material comprises at least one of polybenzimidazole and a polybenzimidazole derivative; flatly laying the casting solution on a substrate, and drying to remove the solvent to obtain a solid film; and performing ionizing radiation on the solid film, utilizing the ionizing radiation to induce the ionic liquid monomer to form a polyionic liquid and a cross-linked product thereof in the base material, and generating a physical entanglement effect between a polyionic liquid molecular chain and a base material molecular chain to fix an ionic liquid component in the polymer base material so as to form the composite film.

Classes IPC  ?

• H01M 8/1086 - Post-traitement de la membrane autrement que par polymérisation
• H01M 8/1088 - Modification chimique, p. ex. sulfonation
• H01M 8/1044 - Mélanges de polymères dont l'un au moins est un conducteur ionique
• H01M 8/18 - Éléments à combustible à régénération, p. ex. batteries à flux REDOX ou éléments à combustible secondaires

Abrégé

The present invention discloses a method and a system for prostate multi-modal MR image classification based on a foveated residual network, the method comprising: replacing convolution kernels of a residual network using blur kernels in a foveation operator, thereby constructing a foveated residual network; training the foveated residual network using prostate multi-modal MR images having category labels, to obtain a trained foveated residual network; and classifying, using the foveated residual network, a prostate multi-modal MR image to be classified, so as to obtain a classification result. In the present invention, a foveation operator is designed based on human visual characteristics, blur kernels of the operator are extracted and used to replace convolution kernels in a residual network, thereby constructing a foveated deep learning network which can extract features that conform to the human visual characteristics, thereby improving the classification accuracy of prostate multi-modal MR images.

Classes IPC  ?

• A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p. ex. formation d'images par résonance magnétique
• A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
• G06N 3/084 - Rétropropagation, p. ex. suivant l’algorithme du gradient
• G06T 7/00 - Analyse d'image
• G06V 10/764 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant la classification, p. ex. des objets vidéo
• G06V 10/82 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant les réseaux neuronaux

Abrégé

The present invention relates to a relation extraction system adapted to financial entities and fused with prior knowledge and a method thereof, the system at least comprising: a deep pretraining module, for training and generating a deep pretrained model for recognizing attributes of the financial entities; a keyword analyzing module, for extracting and outputting positional information and importance vectors of keywords in a Chinese finance-related text; an attention mechanism module, for encoding the positional information of the keywords to obtain attention masks, and inputting them with entity information into the deep pretrained model to acquire text feature vectors; and an optimal margin distribution model module, for predicting financial-entity relations based on the text feature vectors and the importance vectors. Aiming at low applicability of existing models to specific Chinese fields, the present invention obtains more accurate extraction results of entities and related features in Chinese finance-related texts.

Classes IPC  ?

• G06F 40/53 - Traitement de texte non latin,
• G06F 40/295 - Reconnaissance de noms propres
• G06F 40/30 - Analyse sémantique

Abrégé

The present invention relates to a knowledge-graph extrapolating method and system based on multi-layer perception, the method comprising: using relational graph convolutional network encoders to learn embedding representations, and capturing dynamic evolution of a fact; designing emerging task processing units to construct multiple layers of entity sets, and assigning a matching historical relevance; classifying prediction tasks into different reasoning scenes, and connecting them to the corresponding processing unit for partition of entity sets; and using a multi-class task solving method to acquire predicted probability distributions of target entities, and taking the highest one as a prediction answer, so as to accomplish extrapolation of a temporal knowledge graph, wherein the prediction tasks are classified into different reasoning scenes according to whether it contains any entity or relation that has never appeared historically. The knowledge-graph extrapolating system comprises a processor that can run program code information of the disclosed method.

Classes IPC  ?

• G06N 5/022 - Ingénierie de la connaissanceAcquisition de la connaissance

Abrégé

An intra-frame predictive coding method, medium and system for a 360-degree video belong to video coding field are provided. The method includes: inputting features of a coding unit (CU) block to be partitioned into a neural network when intra-frame block partition (IFBP) is performed on a current CU block (CCUB), skipping a partition mode that the output of the neural network is smaller than threshold, and obtaining a plurality of IFBP schemes; determining a length n of a rough mode decision candidate list according to a CU feature and a texture feature of the sub-CU block when an intra-frame angle mode is decided to decide the intra-frame angle mode and to fill pixels in each IFBP scheme; calculating rate distortion optimization (RDO) loss between each IFBP scheme and the CCUB after pixel filling and performing intra-frame coding predictive coding on the CCUB based on the scheme.

Classes IPC  ?

• H04N 19/105 - Sélection de l’unité de référence pour la prédiction dans un mode de codage ou de prédiction choisi, p. ex. choix adaptatif de la position et du nombre de pixels utilisés pour la prédiction
• H04N 19/119 - Aspects de subdivision adaptative, p. ex. subdivision d’une image en blocs de codage rectangulaires ou non
• H04N 19/147 - Débit ou quantité de données codées à la sortie du codeur selon des critères de débit-distorsion
• H04N 19/176 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le codage adaptatif caractérisés par l’unité de codage, c.-à-d. la partie structurelle ou sémantique du signal vidéo étant l’objet ou le sujet du codage adaptatif l’unité étant une zone de l'image, p. ex. un objet la zone étant un bloc, p. ex. un macrobloc
• H04N 19/96 - Codage au moyen d'une arborescence, p. ex. codage au moyen d'une arborescence quadratique

Abrégé

An immunoassay method and system, belonging to the field of nano material testing. The immunoassay method comprises: enabling incident light to be reflected for multiple times in a functional magnetic nanoparticle immunoassay reagent under excitation of an alternating current magnetic field; converting emergent light that has undergone multiple reflections into a voltage signal, and extracting a magneto-optical signal corresponding to the immunoassay reagent; mixing the immunoassay reagent with a solution to be tested, so that the incident light is reflected for multiple times in the mixed solution under the excitation of the alternating current magnetic field; converting the emergent light that has undergone multiple reflections into a voltage signal, and extracting a magneto-optical signal corresponding to the mixed solution; and when the difference degree of the magneto-optical signal corresponding to the immunoassay reagent and the magneto-optical signal corresponding to the mixed solution exceeds a preset threshold value, determining that the solution to be tested contains a target molecule to be tested. The method can lower the lower limit of test concentration of molecules to be tested, and improve the precision and sensitivity of immunoassay. The method has convenience of no-wash, and achieves simple operation compared with existing magneto-optical immunoassay methods.

Classes IPC  ?

• G01N 21/21 - Propriétés affectant la polarisation
• G01N 33/543 - Tests immunologiquesTests faisant intervenir la formation de liaisons biospécifiquesMatériaux à cet effet avec un support insoluble pour l'immobilisation de composés immunochimiques

Abrégé

The present invention relates to a hardware accelerator for hypergraph processing and its operating method, the hardware accelerator comprising: a data loader: for, in the presence of a data-centric load-trigger-reduce execution model, reading hypergraph partition data from an off-chip memory successively according to hypergraph data structure and an order of hypergraph partitions; an address translator, for deploying the hypergraph data into a private register of a processor and/or into a buffer memory according to a priority level of loaded data, and recording corresponding offset information; a task trigger, for generating computing tasks according to the loaded data, and scheduling the computing tasks into the processor; the processor, for receiving and executing the computing tasks; a reducer, for scheduling intermediate results into a first-priority-data reducer unit or a second-priority-data reducer unit depending on the priority level of the data so as to execute a reducing operation for the intermediate results. In view of the shortcomings of task-centric hardware accelerators, the present invention can prevent any possible data conflict during parallel execution of multiple processing units.

Classes IPC  ?

• G06F 12/0806 - Systèmes de mémoire cache multi-utilisateurs, multiprocesseurs ou multitraitement
• G06F 12/10 - Traduction d'adresses

Abrégé

ƒ=1/σ. The present invention provides the formula for evaluating the fractal dimension of particle distribution in a dispersing system. When the formula is used to calculate a fractal dimension, only particle radius distribution of particle matter needs to be measured, and no geometrical morphology feature parameter of the particle matter needs to be measured. Factors such as particle morphology and the like do not affect the fractal dimension. Therefore, the measurement method of the present invention can reduce an error resulting from experimental measurements, can acquire a fractal dimension of particle matter quickly and efficiently, and is especially adapted to data analysis of a dispersion system and a particle swarm.

Classes IPC  ?

• G06F 17/18 - Opérations mathématiques complexes pour l'évaluation de données statistiques
• G06T 5/20 - Amélioration ou restauration d'image utilisant des opérateurs locaux
• G06T 5/00 - Amélioration ou restauration d'image

Abrégé

The present invention relates to a dynamic memory management apparatus and method for HLS, the apparatus has several searching and caching modules and several modifying and writing-back modules, the searching and caching modules are in connection with a DRAM storing module and a BRAM buffer, respectively, and the modifying and writing-back modules are in connection with the DRAM storing module and the BRAM buffer, respectively, the BRAM buffer is for caching information about nodes on a search path and registering information about modification made to the nodes. To remedy the defect that the traditional operating system is directly transplanted to the FPGA and has low execution efficiency, the present invention utilizes the advantage of the large capacity of the DRAM on the FPGA to realize efficient dynamic memory allocation and deallocation, and improve the usability and code reusability of HLS.

Classes IPC  ?

• G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement

Abrégé

The present invention relates to the technical field of photoelectric materials, and in particular, to an alcohol dispersion of a conductive polyethylenedioxythiophene, and a method for preparing same and use of same. The present invention comprises a conductive polyethylenedioxythiophene and an alcohol, and the conductive polyethylenedioxythiophene comprises a polyethylenedioxythiophene cation and a fluorinated sulfonic acid ionomer counter anion. The present invention prepares a PEDOT alcohol dispersion by using an alcohol-dispersible highly fluorinated sulfonic acid ionomer as a counter anion to replace PSS, solving the hygroscopicity problem in conventional aqueous dispersions, and solving the problem that a conventional conductive aqueous dispersion of polyethylenedioxythiophene cannot be evenly applied on a hydrophobic surface due to high surface tension. The present invention has a simple synthesis process and is applicable to different substrates and different types of optoelectronic devices, thermoelectric devices, electrochromic thin films, and antistatic coatings, thus having broad prospects.

Classes IPC  ?

• C08L 65/00 - Compositions contenant des composés macromoléculaires obtenus par des réactions créant une liaison carbone-carbone dans la chaîne principaleCompositions contenant des dérivés de tels polymères
• C08L 27/18 - Homopolymères ou copolymères du tétrafluoro-éthylène
• C09D 5/24 - Peintures électriquement conductrices
• C09D 7/20 - Diluants ou solvants
• C09D 127/18 - Homopolymères ou copolymères du tétrafluoro-éthylène
• C09D 165/00 - Compositions de revêtement à base de composés macromoléculaires obtenus par des réactions créant une liaison carbone-carbone dans la chaîne principaleCompositions de revêtement à base de dérivés de tels polymères
• H10K 85/10 - Polymères ou oligomères organiques
• H10K 30/50 - Dispositifs photovoltaïques [PV]