Abstract

Embodiments of the present invention disclose a structured light three-dimensional reconstruction method and system. The method comprises: obtaining internal parameters of an industrial camera by using a checkerboard calibration method; obtaining stripe patterns adapted to a display screen and a projector; on the basis of the stripe patterns, obtaining correspondences among pixels of the industrial camera, the display screen, and the projector; on the basis of the internal parameters and the correspondences, obtaining distance information; on the basis of the internal parameters, the correspondences, and the distance information, obtaining three-dimensional coordinates; and on the basis of the three-dimensional coordinates, obtaining a three-dimensional image. Thus, by constructing a structured light three-dimensional reconstruction system, the calibration process between the industrial camera and the projector is simplified, and the geometric constraint complexity of a phase-height model is reduced.

IPC Classes  ?

• G06T 17/00 - 3D modelling for computer graphics

Abstract

A low inductance capacitor with a concentric ring capacitor core similar to water ripple diffusion is provided, including a laminated bus bar, a capacitor core, a filler and a shell; where the laminated bus bar is embedded in a center of the capacitor core; and the filler is poured between the capacitor core and the shell. The capacitor features a concentric ring-shaped design. The capacitor core consists of metal electrode layers, insulating inner films, and a central gap hole, with the metal electrode layers arranged in a concentric pattern that decreases in thickness, mimicking the diffusion of water ripples.

IPC Classes  ?

• H01G 4/32 - Wound capacitors
• H01G 4/224 - HousingEncapsulation
• H01G 4/236 - Terminals leading through the housing, i.e. lead-through

Abstract

A non-acidified fermented dairy product and a preparation method thereof are provided, relating to the technical field of fermented dairy products processing. The preparation method of the non-acidified fermented dairy product includes: inoculating a fermentation inoculum into cow milk, and performing a two-stage fermentation to obtain the non-acidified fermented milk; wherein the two-stage fermentation comprises a first-stage fermentation and a second-stage fermentation; a rotation speed of the first-stage fermentation is 180-250 revolutions per minute, and a duration is 10-20 hours; a rotation speed of the second-stage fermentation is 100-160 revolutions per minute, and a duration is 8-16 hours.

IPC Classes  ?

• A23C 9/12 - Fermented milk preparationsTreatment using microorganisms or enzymes
• A23C 3/02 - Preservation of milk or milk preparations by heating
• C12N 1/18 - Baker's yeastBrewer's yeast
• C12R 1/865 - Saccharomyces cerevisiae

Abstract

A method for lowering cholesterol and lipid levels using the Antrodia cinnamomea water-insoluble dietary fiber prepared as herein. After ethanol and water extraction, Antrodia cinnamomea wastes are dried and superfine-comminuted to obtain Antrodia cinnamomea waste powder. The waste powder treated with NaOH solution containing NaBH4 is extracted it twice to obtain two extracts. The two extracts are combined and an appropriate amount of glacial acetic acid are added for neutralization. The extracts are centrifugalized and precipitate is collected. After washing the precipitate with ultrapure water, the precipitate is dissolved with LiCl-DMSO. The precipitate that is insoluble in the LiCl-DMSO solution is dialyzed and freeze-dried to obtain the water-insoluble dietary fiber component ACA-IDK of Antrodia cinnamomea. The LiCl-DMSO solution is subjected to ethanol/DMSO fractional precipitation, and then the precipitate is collected and dialyzed. The water-insoluble dietary fiber component ACA-DK of Antrodia cinnamomea is obtained after freeze-drying.

IPC Classes  ?

• A61K 36/07 - Basidiomycota, e.g. Cryptococcus
• A23L 31/00 - Edible extracts or preparations of fungiPreparation or treatment thereof
• A23L 33/21 - Addition of substantially indigestible substances, e.g. dietary fibres
• A61P 3/06 - Antihyperlipidemics
• B01D 11/02 - Solvent extraction of solids

Abstract

Preparation method of a lanthanum ferrite/silver/zinc indium sulfide composite photocatalyst. Includes following steps: dissolving citric acid, an iron-containing compound, and a lanthanum-containing compound in a first dispersant to obtain a first solution; carrying out a hydrothermal reaction on the first solution, prior to washing and drying sequentially, to obtain a first dried sample; calcining the first dried sample to obtain a lanthanum ferrite sample; adding deionized water and a silver nitrate solution in the lanthanum ferrite sample, prior to irradiation under a xenon lamp, and then washing and drying, to obtain a second dried sample; dissolving the second dried sample, zinc chloride, thioacetamide, and indium chloride in a second dispersant to obtain a second solution; and carrying out a hydrothermal reaction on the second solution, prior to washing and drying sequentially to obtain a lanthanum ferrite/silver/zinc indium sulfide composite photocatalyst, which can increase an absorption rate of visible light.

IPC Classes  ?

• B01J 27/04 - Sulfides
• B01J 6/00 - CalciningFusing
• B01J 23/50 - Silver
• B01J 23/83 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups with rare earths or actinides
• B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
• B01J 35/39 - Photocatalytic properties
• B01J 37/06 - Washing
• B01J 37/08 - Heat treatment
• B01J 37/34 - Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves
• C02F 1/30 - Treatment of water, waste water, or sewage by irradiation
• C02F 101/30 - Organic compounds
• C02F 103/30 - Nature of the water, waste water, sewage or sludge to be treated from the textile industry

Abstract

A preparation method and a use method of a lanthanum ferrite/silver/zinc indium sulfide composite photocatalyst. The preparation method includes the following steps: dissolving citric acid, an iron-containing compound, and a lanthanum-containing compound in a first dispersant to obtain a first solution; carrying out a hydrothermal reaction on the first solution, prior to washing and drying sequentially, to obtain a first dried sample; calcining the first dried sample to obtain a lanthanum ferrite sample; adding deionized water and a silver nitrate solution in the lanthanum ferrite sample, prior to irradiation under a xenon lamp, and then washing and drying, to obtain a second dried sample; dissolving the second dried sample, zinc chloride, thioacetamide, and indium chloride in a second dispersant to obtain a second solution; and carrying out a hydrothermal reaction on the second solution, prior to washing and drying sequentially, to obtain a lanthanum ferrite/silver/zinc indium sulfide composite photocatalyst. The lanthanum ferrite/silver/zinc indium sulfide composite photocatalyst can increase an absorption rate of visible light, and has the advantages of high efficiency, good stability, and no pollution to the environment when used in degradation of dye wastewater.

IPC Classes  ?

• B01J 27/049 - Sulfides with chromium, molybdenum, tungsten or polonium with iron group metals or platinum group metals
• C02F 1/30 - Treatment of water, waste water, or sewage by irradiation
• C02F 101/30 - Organic compounds
• C02F 101/38 - Organic compounds containing nitrogen

Abstract

A terahertz plasma array fingerprint spectrum sensing apparatus, being constructed on the basis of a substrate; a plasma unit array is formed on the substrate by means of division, and each unit in the plasma unit array is densely provided with cross-slot unit cells; in the plasma units, the densely arranged cross-slot unit cells form a cross-slot unit cell complementation array; the unit length of the cross-slot unit cells of the plasma units in the plasma unit array is set in the form of diagonal unidirectional gradient change; and in the plasma unit array, the unit length of the cross-slot unit cells in each plasma unit is uniformly and discretely set in the range of 47 μm to 104 μm. The fingerprint spectrum sensing apparatus is provided with the complementary cross structure which can excite a plasma local field mode, so as to allow for wider resonance humps of dielectric metasurfaces, and simultaneously can enhance and amplify spectral lines of wide fingerprint spectrum and narrow fingerprint spectrum substances.

IPC Classes  ?

• G01N 21/59 - Transmissivity
• G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation

Abstract

A matching design method of static stiffness for a combined box body structure of a large reducer is provided, including the following steps, building a transmission system model and an initial structure model and obtaining load data; performing a statics analysis; obtaining primary design variables and design responses; constructing design variables; constructing a static stiffness matching target of a combined box body; constructing an objective function; setting constraint conditions; constructing a response surface proxy model; constructing a static stiffness matching optimization model of combined box body; obtaining optimal design variables and obtaining an optimal structure model of the box body; performing the statics analysis on the optimal structure model of the box body, and performing a contrastive analysis with statics analysis results of the corrected box body two-dimensional unit finite element model to confirm optimization effects.

IPC Classes  ?

• G06F 30/20 - Design optimisation, verification or simulation

Abstract

A cholecystokinin (CCK) secretion-promoting peptide targeting a calcium-sensing receptor (CaSR), and a preparation method and use thereof are provided. The CCK secretion-promoting peptide targeting a CaSR is a QGDVVALPA active peptide and has an amino acid sequence as follows: Gln-Gly-Asp-Val-Val-Ala-Leu-Pro-Ala. Compared with the prior art, the active peptide is allowed to be artificially synthesized through a chemical solid phase synthesis method, and is allowed to be obtained by an enzymatic hydrolysis of oat protein, separation and purification. The active peptide is allowed to target the CaSR of an intestinal endocrine cell membrane to activate a Gq signal pathway, thereby further increasing an intracellular calcium ion concentration to significantly promote secretion of CCK by an intestinal endocrine cell; and moreover, the active peptide has the advantages of safety, no toxic side effect, tolerance to digestive enzyme hydrolysis of a gastrointestinal tract, easy absorption, etc.

IPC Classes  ?

• C07K 14/415 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from plants
• A61P 3/04 - AnorexiantsAntiobesity agents

Abstract

The present invention provides use of an ldh gene-containing lactobacillus plantarum in preparing a product for relieving enteritis. The lactobacillus plantarum or plasmid involved in the present invention is an ldh gene-containing lactobacillus plantarum or plasmid. Experiments prove that the ldh gene has the function of preventing and relieving inflammation. According to the present invention, lactobacillus plantarum AR113 with acetate kinase (ackA), D-lactate dehydrogenase (D-ldh), and L-lactate dehydrogenase (L-ldh) knocked out is taken as a research object. By studying the effect of the knock-out strains on O157:H7-induced colitis, the important role of lactic acid in alleviating tissue damage caused by O157:H7 and protecting the integrity of intestinal epithelial cells is investigated, and lactic acid can effectively relive and prevent different types of enteritis; a lactic acid or a lactate dehydrogenase gene is selected as a screening marker for bacterium screening, and it is concluded that it is the lactic acid that plays a major relieving role in colitis, thereby laying a foundation for a method for screening probiotics with an inflammation relieving function.

IPC Classes  ?

• C12N 1/21 - BacteriaCulture media therefor modified by introduction of foreign genetic material
• C12N 15/53 - Oxidoreductases (1)
• C12N 15/54 - Transferases (2)
• A61K 35/747 - Lactobacilli, e.g. L. acidophilus or L. brevis
• A61P 1/00 - Drugs for disorders of the alimentary tract or the digestive system
• A61P 29/00 - Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agentsNon-steroidal antiinflammatory drugs [NSAID]
• A23L 33/135 - Bacteria or derivatives thereof, e.g. probiotics
• C12R 1/25 - Lactobacillus plantarum

Abstract

Provided is a CCK secretion-promoting peptide QGDVVALPA targeting a calcium sensing receptor. The peptide can be artificially synthesized by adopting a chemical solid-phase synthesis method and can also be obtained after enzymolysis, separation, and purification of avenin. The peptide can target an intestinal endocrine cell membrane CaSR to activate a Gq signaling pathway, so that the concentration of intracellular calcium ions is improved to significantly promote secretion of CCK by intestinal endocrine cells. The peptide is safe, non-toxic and side effect-free, resistant to enzymolysis by a gastrointestinal digestive enzyme, and easy to absorb, and thus is suitable for being used as a functional component or a food base material for developing food, health food, and medicines with functions of delaying gastric emptying, promoting satiety, and losing weight.

IPC Classes  ?

• C07K 14/415 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from plants
• C12N 15/29 - Genes encoding plant proteins, e.g. thaumatin
• C12P 21/06 - Preparation of peptides or proteins produced by the hydrolysis of a peptide bond, e.g. hydrolysate products
• C07K 1/16 - ExtractionSeparationPurification by chromatography
• A23L 33/18 - PeptidesProtein hydrolysates
• A61K 38/16 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof
• A61P 3/04 - AnorexiantsAntiobesity agents

Abstract

A method, system and device for programmed cell freezing is disclosed. The method includes: S1, acquiring a cooling rate k and a temperature distribution function T=a×h2+b×h+c of a heat preservation chamber containing liquid nitrogen; S2, controlling a cell preservation tube to lower in the chamber at a speed of v=(k-b)/2ah, and acquiring temperatures T1 and T2 inside and outside the tube at a same time and at a same height in real time during the lowering of the tube; S3, determining whether a difference Δt between T1 and T2 exceeds a preset temperature difference threshold, if yes, proceeding to S4, and if no, proceeding to S2 until the tube reaches a position corresponding to a preset temperature T0; and S4, controlling the cell preservation tube to stop until the difference Δt between T1 and T2 is less than or equal to the temperature difference threshold, and continuing S2.

IPC Classes  ?

• A01N 1/02 - Preservation of living parts

Abstract

Disclosed is a robust topology optimization design method of a damping composite stiffened cylindrical shell box structure, comprising: constructing working load data, and obtaining circumferential target modal frequencies based on the working load data and the stiffened cylindrical shell box; laying constrained layer damping materials on the stiffened cylindrical shell box to construct a damping composite stiffened cylindrical shell box; constructing interval parameters based on the damping composite stiffened cylindrical shell box, and obtaining modal loss factor based on the interval parameters; constructing an objective function based on the modal loss factors, constructing design variables and constraint conditions based on the damping composite stiffened cylindrical shell box, integrating the objective function, design variables and constraint conditions to form an interval robust topology optimization model; updating the design variables based on the interval robust topology optimization model, and obtaining an optimized topology configuration of the damping composite stiffened cylindrical shell box.

IPC Classes  ?

• G06F 30/17 - Mechanical parametric or variational design
• G06F 30/23 - Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
• G06F 119/10 - Noise analysis or noise optimisation
• G06F 111/04 - Constraint-based CAD

Abstract

Disclosed is a copper-niobium alloy for a medical biopsy puncture needle. A needle core and/or needle tube of the puncture needle are/is made of the copper-niobium alloy. The copper-chromium alloy includes the following components by mass: 5≤Nb≤15 and the balance of Cu. A copper alloy with designed components is obtained by combining a diamagnetic material Cu with paramagnetic Nb, and compared with existing medical stainless steel and titanium alloy, the copper alloy has greatly reduced magnetic susceptibility, and specifically, the artifact area and volume are also significantly reduced. In addition, the blank of use of the copper alloy in medical biopsy paracentesis is filled.

IPC Classes  ?

• C22C 9/00 - Alloys based on copper
• A61B 10/02 - Instruments for taking cell samples or for biopsy

Abstract

The present invention discloses a method for the rapid assessment of the service life of a hub bearing under multiaxial random road loading, comprising the following steps: acquiring a measured load spectrum of a wheel center of an automobile, and converting the wheel center load into an axial load and a radial load borne by a hub unit; performing load level division on the axial load and radial load borne by the hub unit, and performing joint distribution counting; according to the deformation coordination relationship between a roller and a raceway of the bearing, establishing a bearing contact model under a joint load, and according to the bearing contact model and the result of joint distribution counting, calculating the actual contact load of the bearing under different loads; and calculating the equivalent dynamic load and the life of the bearing through the actual contact load of the bearing to obtain the total equivalent damage of the bearing. The present invention can accurately and effectively obtain the service life of the hub bearing to provide a reference basis for the design and type-selection, and life prediction of the hub bearing.

IPC Classes  ?

• G01M 13/04 - Bearings
• G01M 17/007 - Wheeled or endless-tracked vehicles

Abstract

A cell program freezing method, system and apparatus, which belong to the technical field of cell freezing. The method comprises: S1, acquiring a cooling rate k and a temperature distribution function T = a × h212120122 is less than or equal to the temperature difference threshold value, continuing with S2. By means of the method, system and apparatus, a cell freezing effect and a cell recovery rate can be effectively improved.

IPC Classes  ?

• A01N 1/02 - Preservation of living parts

Abstract

A wearable multifunctional powered exoskeleton for cervical vertebra rehabilitation, and relates to the field of man-machine interaction rehabilitation aids, comprises an active drive motor module, a fixed supporting module and a movable joint component; wherein the active drive motor module is connected to the fixed supporting module, and comprises a left shoulder push rod motor, a right shoulder push rod motor, a cervico-thoracic vertebra left front side push rod motor, a cervico-thoracic vertebra left rear side push rod motor, a cervico-thoracic vertebra right front side push rod motor, and a cervico-thoracic vertebra right rear side push rod motor; wherein the active drive motor module and the movable joint component are combined to Jointly form a six-connecting rod power-driven structure.

IPC Classes  ?

• A61H 1/02 - Stretching or bending apparatus for exercising
• B25J 9/00 - Programme-controlled manipulators

Abstract

The present invention provides a method for sorting lithium cells, which includes quick sorting and high-precision sorting. The method provided by the present invention can be used for quickly and accurately classifying cells based on self-discharge, and is applicable to large-scale self-discharge sorting due to low cost of adopted equipment. Through the quick sorting method and the high-precision sorting method in the present invention, cells with large self-discharge rates can be eliminated from a batch of cells, cells with similar self-discharge rates can be sorted into groups, and an application range is wider.

IPC Classes  ?

• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• B07C 5/344 - Sorting according to other particular properties according to electric or electromagnetic properties
• G01R 31/382 - Arrangements for monitoring battery or accumulator variables, e.g. SoC

Abstract

Antrodia cinnamomea is obtained after freeze-drying.

IPC Classes  ?

• A61K 36/07 - Basidiomycota, e.g. Cryptococcus
• A23L 31/00 - Edible extracts or preparations of fungiPreparation or treatment thereof
• A23L 33/21 - Addition of substantially indigestible substances, e.g. dietary fibres
• A61P 3/06 - Antihyperlipidemics
• B01D 11/02 - Solvent extraction of solids

Abstract

An edible meal replacement powder suitable for inflammatory bowel disease (IBD) patients and a preparation method therefor, the meal replacement powder comprising main ingredients and auxiliary ingredients. The main ingredients are 1 to 8 parts rice, 1 to 6 parts millet, 1 to 10 parts quinoa, and 1 to 8 parts mung bean. The auxiliary ingredients comprise fructooligosaccharides that make up 1 to 20% of the total mass of the main ingredients and oat beta-glucan that makes up 0.1 to 10% of the total mass of the main ingredients. The meal replacement powder can meet the nutritional needs of enteritis patients and prolong the health maintenance period of people prone to enteritis.

IPC Classes  ?

• A23L 7/17 - Preparation of puffed cereals involving preparation of meal or dough as an intermediate step by extrusion
• A23L 7/191 - After-treatment of puffed cereals, e.g. coating or salting
• A23L 11/00 - Pulses, i.e. fruits of leguminous plants, for production of foodProducts from legumesPreparation or treatment thereof
• A23L 33/00 - Modifying nutritive qualities of foodsDietetic productsPreparation or treatment thereof
• A23L 33/125 - Modifying nutritive qualities of foodsDietetic productsPreparation or treatment thereof using additives containing carbohydrate syrupsModifying nutritive qualities of foodsDietetic productsPreparation or treatment thereof using additives containing sugarsModifying nutritive qualities of foodsDietetic productsPreparation or treatment thereof using additives containing sugar alcoholsModifying nutritive qualities of foodsDietetic productsPreparation or treatment thereof using additives containing starch hydrolysates
• A23L 33/21 - Addition of substantially indigestible substances, e.g. dietary fibres
• A23P 30/34 - Puffing or expanding by pressure release, e.g. explosion puffingPuffing or expanding by vacuum treatment by extrusion-expansion

Abstract

An energy bar having a function of regulating inflammatory bowel disease and a manufacturing method therefor. The energy bar comprises main ingredients and auxiliary ingredients. The main ingredients are: 1 to 8 parts of rice, 1 to 5 parts of millet, 1 to 10 parts of quinoa, and 1 to 8 parts of mung bean. The auxiliary ingredients comprise coffee fruit powder constituting 0.1-3% of the total mass of the main ingredients, fructo-oligosaccharides constituting 1-20% of the total mass of the main ingredients, and β-glucan constituting 0.1-10% of the total mass of the main ingredients. The described energy bar can meet the dietary needs of patients suffering from enteritis and has the function of assisting in reducing the level of intestinal inflammation and relieving the symptoms of enteritis.

IPC Classes  ?

• A23L 7/178 - Preparation of puffed cereals from wholegrain or grain pieces without preparation of meal or dough by pressure release with or without heating
• A23L 7/191 - After-treatment of puffed cereals, e.g. coating or salting
• A23L 11/00 - Pulses, i.e. fruits of leguminous plants, for production of foodProducts from legumesPreparation or treatment thereof
• A23L 33/10 - Modifying nutritive qualities of foodsDietetic productsPreparation or treatment thereof using additives
• A23L 33/125 - Modifying nutritive qualities of foodsDietetic productsPreparation or treatment thereof using additives containing carbohydrate syrupsModifying nutritive qualities of foodsDietetic productsPreparation or treatment thereof using additives containing sugarsModifying nutritive qualities of foodsDietetic productsPreparation or treatment thereof using additives containing sugar alcoholsModifying nutritive qualities of foodsDietetic productsPreparation or treatment thereof using additives containing starch hydrolysates
• A23P 30/34 - Puffing or expanding by pressure release, e.g. explosion puffingPuffing or expanding by vacuum treatment by extrusion-expansion
• A23L 5/20 - Removal of unwanted matter, e.g. deodorisation or detoxification
• A23L 33/00 - Modifying nutritive qualities of foodsDietetic productsPreparation or treatment thereof

Abstract

The invention provides an equalizing device for a vehicle soft-packed battery and an equalizing method for the soft-packed battery. According to the equalizing method for the vehicle soft-packed battery, a battery to be equalized is connected to a parallel equalization circuit by using an equalizing device for a vehicle soft-packed battery, battery cells to be equalized are sequentially equalized by adopting a first-in first-out sequence, and the SOC of each cell equalized is maintained within a preset range; and the number of the cells entering the equalizing device for the vehicle soft-packed battery is N, and the equalizing time of the battery cells is T. The equalizing device for the vehicle soft-packed battery comprises a holder clamping type or a copper sheet compressing type. On the premise of remarkably improving the equalizing efficiency of the battery cell, the invention can reduce the space and cost required by the equalizing operation, and ensure that the SOC difference of the equalized battery cell is maintained within a certain range, and it is a low-cost high-efficiency battery cell equalizing device. The invention is suitable for equalizing a large number of battery cells on a production line.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• B60L 58/13 - Maintaining the SoC within a determined range
• H01M 10/058 - Construction or manufacture

Abstract

A multiple neural networks-based MRI image segmentation method and apparatus, and a device. Said method comprises the following steps: acquiring an original MRI image, pre-processing the original MRI image, and generating a processed MRI image; extracting an axial plane image block, a coronal plane image block and a sagittal plane image block from the processed MRI image; using the axial plane image block, the coronal plane image block and the sagittal plane image block respectively as inputs of a trained axial segmentation model, coronal segmentation model and sagittal segmentation model correspondingly, and obtaining segmentation results of the models; and fusing the segmentation results of the models, and obtaining a final segmentation result on the basis of a fusing result and a set volume constraint, wherein the axial segmentation model, the coronal segmentation model and the sagittal segmentation model are closely connected 2D-CNN neural network segmentation models with the same structure. Compared with the prior art, the method has the advantages of short operation time and high accuracy.

IPC Classes  ?

• G06T 7/00 - Image analysis

Abstract

A cell drug-resistance testing method based on high content imaging, and a medium and an electronic device. The method comprises the following steps: performing fluorescence staining on a cell to be tested; performing high content imaging on the stained cell to be tested, and acquiring a corresponding high content image; pre-processing the high content image; and taking the pre-processed image as an input of a trained drug-resistance classification identification model based on a convolutional neural network, and detecting a drug-resistance category to which the cell to be tested belongs. Compared with the prior art, the method has the advantages of being simple, reliable and efficient.

IPC Classes  ?

• G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints

Abstract

A deep-learning-based super-resolution reconstruction method for a microscopic image, and a medium and an electronic device. The method comprises the following steps: performing wavelet decomposition on a low-resolution image to obtain a first coefficient sub-image; inputting the first coefficient sub-image into a variational auto-encoder to obtain a second coefficient sub-image that has a high resolution; performing inverse wavelet transformation on the basis of the second coefficient sub-image to reconstruct and obtain a high-resolution image; and inputting the low-resolution image into a trained convolutional neural network, adding the reconstructed high-resolution image into the convolutional neural network in a residual manner, and obtaining, by means of upsampling, a super-resolution image having the same size as the high-resolution image. Compared with the prior art, the method has the advantages of high reconstruction precision, convenience, etc.

IPC Classes  ?

• G06N 3/04 - Architecture, e.g. interconnection topology
• G06T 3/40 - Scaling of whole images or parts thereof, e.g. expanding or contracting

Abstract

The present invention relates to a lung nodule classification method, a medium, and an electronic device. The lung nodule classification method comprises the following steps: obtaining CT original image data and a corresponding lung nodule region annotation file; segmenting out a lung nodule image block according to the CT original image data and the lung nodule region annotation file; extracting imageology features of the lung nodule image block; processing the lung nodule image block by using a trained three-dimensional convolutional neural network (CNN), and extracting CNN features; combining the imageology features and the CNN features to obtain final features; and obtaining a classification result on the basis of the final features by using a classifier. Compared with the prior art, the present invention can obtain more accurate identification features to improve the classification accuracy.

IPC Classes  ?

• G06K 9/62 - Methods or arrangements for recognition using electronic means

Abstract

The present invention relates to a method for determining a mutation state of an epidermal growth factor receptor, and a medium and an electronic device. The method comprises the following steps: acquiring a PET image and a CT image, and respectively preprocessing same, so as to form processed images; extracting deep learning features of the processed images by using a pre-trained convolutional neural network; extracting radiomics features of the processed images; fusing the deep learning features, the radiomics features and corresponding clinical features to form fused features; and obtaining a determination result for a mutation state of an epidermal growth factor receptor by using a pre-trained determination model and on the basis of the fused features. Compared with the prior art, the present invention has the advantages of a determination result having a high accuracy, etc.

IPC Classes  ?

• G06T 7/00 - Image analysis

Abstract

The present invention relates to a method for automatically segmenting a ground-glass pulmonary nodule and a computer device. Said method comprises the following steps: acquiring medical image raw data acquired by a computer tomography device; pre-processing the medical image raw data; and taking the pre-processed image as an input of a trained fully convolutional residual network based on an ASPP structure and an attention mechanism, to obtain a ground-glass pulmonary nodule segmentation result, wherein the fully convolutional residual network based on the ASPP structure and the attention mechanism takes a plurality of Conv2D convolutional layers as a basic architecture, a residual module and an attention module being provided between adjacent Conv2D convolutional layers, and an ASPP structure is provided in the fully convolutional residual network to capture multi-scale information of the ground-glass pulmonary nodule. Compared with the prior art, the present invention has the advantages of rapidness, accuracy, etc.

IPC Classes  ?

• G06T 7/11 - Region-based segmentation

Abstract

The present invention provides a method for detecting petroleum with a staggered toroidal chip, comprising the following steps: step 1, dry the test environment of a terahertz spectrum analysis system, measure a spectrum under dry conditions, and use the spectrum as a reference spectrum; step 2, use a pipette to transfer a crude oil sample and evenly smear it on the metasurface of a staggered toroidal chip; step 3, put the staggered toroidal chip coated with the crude oil sample into the dried terahertz spectrum analysis system, let a terahertz pulse signal of the terahertz spectrum analysis system to be vertically irradiated on the chip for detection, and then get a detection spectrum of the crude oil sample; step 4, subtract the reference spectrum from the detection spectrum, and then get a transmission spectrum of the crude oil sample, wherein the staggered toroidal chip is a terahertz chip designed based on the dual-torus toroidal effect.

IPC Classes  ?

• G01N 21/3586 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation by Terahertz time domain spectroscopy [THz-TDS]
• G01N 21/25 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
• G01N 33/28 - Oils

Abstract

This invention discloses a semi-active rigid-flexible coupling exoskeleton based on a single-loop bidirectional damping regulator and relates to a power assisting mechanism in the field of robots, the exoskeleton including a waist assembly, a leg assembly, and a hydraulic damping regulator; the hydraulic damping regulator includes a cylinder body, a titanium alloy sleeve, a cylinder head, a piston, an extension assisting spring, an oil injection port plug, a staggered channel-type valve body, a valve body sealing seat, a valve body-end bevel gear, an angle sensor, a motor fixing seat, a DC servo motor, a coupler, and a motor-end bevel gear. According to the invention, two modes of power assistance or damping regulation, i.e., a heavy-object-carrying mode and a walking-with-load mode, can be enabled; the heavy-object-carrying mode supports carrying from a higher to a lower position and the other way around, characterized by good applicability; moreover, the knee joint can be assisted when naturally bending in a stooping state; a semi-active torque adjusting system is formed with a hydraulic damper and a spring, with the magnitude of assistance and damping force adjustable; also, this invention features a light weight and good man-machine coupling.

IPC Classes  ?

• B25J 9/00 - Programme-controlled manipulators
• A61B 5/107 - Measuring physical dimensions, e.g. size of the entire body or parts thereof

Abstract

The present invention provides a method for reasonably adjusting an end-of-discharge voltage of a lithium battery with attenuation of a battery life. The method includes: acquiring an end-of-charge voltage, an end-of-discharge voltage and a rated capacity based on a basic parameter table for a lithium battery, then setting a safety end-of-charge voltage and a safety end-of-discharge voltage to obtain an initial safety discharge capacity, and finally setting a preset discharge capacity of the battery; using an Ampere-hour integration method to estimate a discharged power, taking the preset discharge capacity as a discharge standard, and stopping discharge when the discharged power reaches the preset discharge capacity; and the safety discharge capacity being gradually less than the preset discharge capacity within a battery life cycle, and the battery stopping discharge when the voltage reaches the safety end-of-discharge voltage. By controlling the discharge capacity to be unchanged, the present invention ensures stably outputting power in the case that the battery capacity attenuates, so that a user feels that the endurance mileage of an electric vehicle is stably unchanged within a certain period. The method has the characteristics of simple adjusting control method and convenience in commercialization.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H01M 10/44 - Methods for charging or discharging
• H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte

Abstract

The invention relates to an adversarial optimization method for the training process of generative adversarial network. According to the adversarial optimization method for the training process of generative adversarial network, the optimal transmission problem is transformed into solving the elliptic Monge-Ampere partial differential equation (MAPDE) in the generator G. To solve MAPDE of n (n>3) dimensions, the Neumann boundary conditions are improved and the discretization of MAPDE is extended to obtain the optimal mapping between a generator and a discriminator, which constitutes the adversarial network MAGAN. In the process of training the defence network, by overcoming the loss function of the optimal mapping, the defence network can obtain a maximum distance between the two measurements and obtain filtered security samples. The effective attack method of GANs is successfully established, with the precision improved by 5.3%. In addition, the MAGAN can be stably trained without adjusting hyper-parameters, so that the accuracy of target classification and recognition system for unmanned vehicle can be well improved.

IPC Classes  ?

• G06V 10/774 - Generating sets of training patternsBootstrap methods, e.g. bagging or boosting
• G06N 3/04 - Architecture, e.g. interconnection topology
• G06F 17/13 - Differential equations

Abstract

A wearable multifunctional cervical vertebra rehabilitation power exoskeleton, relating to the field of human-computer interaction rehabilitation assistive devices, and comprising an active driving motor module (1), a fixed support module (2), and a movable joint assembly (3). The active driving motor module (1) is connected to the fixed support module (2); the active driving motor module (1) comprises a left shoulder push rod motor (12), a right shoulder push rod motor (15), a cervical vertebra and thoracic vertebra left front side push rod motor (11), a cervical vertebra and thoracic vertebra left rear side push rod motor (13), a cervical vertebra and thoracic vertebra right front side push rod motor (14), and a cervical vertebra and thoracic vertebra right rear side push rod motor (16); the active driving motor module (1) and the movable joint assembly (3) are combined into a six-link power driving structure. Four-degree-of-freedom rehabilitation exercises of passive traction, anteflexion and posterior extension, lateral flexion and horizontal rotation of the cervical vertebra are achieved, traction training of the neck and directional resistance training of neck muscles are conducted, the neck muscle strength is improved, the stability of the cervical vertebra is enhanced, and the biomechanical balance of the cervical vertebra is improved and corrected.

IPC Classes  ?

• A61F 5/042 - Devices for stretching or reducing fractured limbsDevices for distractionsSplints for extension or stretching
• A61H 1/02 - Stretching or bending apparatus for exercising

Abstract

A method for fabricating a fly-eye lens comprises the following steps: preparing a fly-eye mold (1) and a fly-eye base (2), wherein the fly-eye mold (1) is provided with a hemispherical recess that matches the fly-eye base (2), the bottom of the hemispherical recess is provided with a number of arrayed concave surfaces, the fly-eye base (2) has a hemispherical structure, mini-channels (3) penetrating through a spherical surface and a flat surface of the fly-eye base (2) are arranged inside the fly-eye base, and the arrangement of openings of the mini-channels (3) at the spherical surface is in consistency with that of the concave surfaces inside the fly-eye mold (1); and installing the fly-eye base (2) in the fly-eye mold (1) in a fitted manner, injecting polydimethylsiloxane through the mini-channels (3) of the fly-eye base (2), curing the polydimethylsiloxane, and removing the fly-eye base (2) from the fly-eye mold (1) to obtain the fly-eye lens.

IPC Classes  ?

• G02B 3/00 - Simple or compound lenses

Abstract

A non-small cell lung cancer prognosis survival prediction method, a medium and an electronic device. The method comprises: acquiring a CT image to be subjected on prediction, performing grayscale normalization processing on the CT image to be subjected on prediction, and extracting a region of interest; on the basis of the region of interest, using a trained prognosis survival model based on deep learning to predict and obtain a corresponding prognosis survival time classification result, wherein the prognosis survival model based on deep learning is a deep learning convolutional neural network model, and comprises five convolutional blocks, one fully connected layer and one classification layer; and extracting tumor abstract features layer by layer, and obtaining a prognosis survival time classification result, wherein among the five convolutional blocks, a Bottleneck architecture is introduced into three convolutional blocks in the middle, and a fusion layer is added to the last convolutional block on the basis of the Bottleneck architecture.

IPC Classes  ?

• G06K 9/62 - Methods or arrangements for recognition using electronic means
• G06T 7/00 - Image analysis
• G06N 3/04 - Architecture, e.g. interconnection topology
• G16H 30/20 - ICT specially adapted for the handling or processing of medical images for handling medical images, e.g. DICOM, HL7 or PACS

Abstract

The present invention relates to a lung image processing method, apparatus and device, the method comprising: acquiring a lung CT sequence diagram to be processed; segmenting to acquire a binary lung parenchyma mask; carrying out dot product processing on the binary lung parenchyma mask and the lung CT sequence diagram, so as to acquire a lung parenchyma region image, and enhancing a potential vascular region therein to obtain a vascular region of the lung; segmenting a candidate pulmonary nodule region from the lung CT sequence diagram; and determining whether the lung vascular region and the candidate lung nodule region have an intersection, and if so, then segmenting the intersection part of the lung vascular region and the candidate lung nodule region, performing three-dimensional reconstruction display on the segmented lung vascular region and candidate lung nodule region, so as to render the lung vascular region and the candidate lung nodule region by using different colors. Compared with the existing technology, the present invention may solve the problems in which determining the relationship between a lung nodule and surrounding blood vessels in a two-dimensional CT image is highly difficult, misjudgments are likely to occur, and so on.

IPC Classes  ?

• G06T 7/00 - Image analysis

Abstract

A pulmonary nodule automatic detection method, apparatus and computer system. The method comprises the following steps: acquiring a CT image to be subjected to detection; performing filtering enhancement processing on the CT image to be subjected to detection, so as to obtain a lung enhanced CT image sequence; performing segmentation processing on the CT image sequence by using a threshold method to obtain an image which only includes a lung parenchyma region; cutting an image obtained by a lung parenchyma segmentation module into several image blocks, and obtaining a region of interest by means of a multi-scale feature fusion U-Net network model; and performing automatic detection and recognition on the region of interest by using a 3D CNN model, so as to obtain a pulmonary nodule detection result. The method has the advantages of a high detection sensitivity and precision, etc.

IPC Classes  ?

• G06T 7/136 - SegmentationEdge detection involving thresholding
• G06T 7/11 - Region-based segmentation
• G06N 3/04 - Architecture, e.g. interconnection topology

Abstract

The present invention relates to a learning method of generative adversarial network (GAN) with multiple generators for image denoising, and provides a generative adversarial network with three generators. Such generators are used for removing Poisson noise, Gaussian blur noise and distortion noise respectively to improve the quality of low-dose CT (LDCT) images; the generators adopt the residual network structure. The mapped short connection used in the residual network can avoid the vanishing gradient problem in a deep neural network and accelerate the network training; the training of GAN is always a difficult problem due to the unreasonable measure between the generative distribution and real distribution. The present invention can stabilize training and enhance the robustness of training models by limiting the spectral norm of a weight matrix.

IPC Classes  ?

• G06T 5/00 - Image enhancement or restoration
• G06N 3/04 - Architecture, e.g. interconnection topology

Abstract

Disclosed is a method for rapidly evaluating the service life of a hub bearing on the basis of multi-axis random road load. The method comprises the following steps: acquiring an actually measured load spectrum of an automobile wheel center, and converting a wheel center load into axial and radial loads borne by a hub unit; grading the axial and radial loads borne by the hub unit, and counting joint distributions; according to a deformation coordination relationship between bearing roller raceways, establishing a bearing contact model under a combined load, and according to the bearing contact model and the result of the counting of the joint distributions, calculating actual contact loads of a bearing under different loads; and calculating an equivalent dynamic load and the service life of the bearing by means of the actual contact load of the bearing to obtain total equivalent damage to the bearing. By means of the present invention, the service life of the hub bearing can be accurately and effectively obtained, thereby providing a reference basis for design type selection and service life prediction of the hub bearing.

IPC Classes  ?

• G01M 13/04 - Bearings
• G01M 17/007 - Wheeled or endless-tracked vehicles

Abstract

A method for compiling a load spectrum of a reliability test for a high-speed bearing of an electric drive system. On the basis of load data of the full life cycle of an electric drive system, same is associated with a high-speed bearing failure dominant load, and action frequencies of load classes are counted by using a multi-dimensional load joint counting method; a mechanical equilibrium equation for a bearing is constructed; a load class of a reliability test is determined by means of the damage contribution distribution of different load classes and a cumulative damage contribution distribution; the time of the load class of the reliability test is determined according to the principles of overall frequency consistency and damage consistency; and in view of an extreme load working condition, a load spectrum of the reliability test for a high-speed bearing is finally constructed. The constructed load spectrum of the reliability test is associated with an actual failure mode, such that the reliability level of a high-speed bearing can be effectively verified, and the time for the reliability test is shortened, thereby providing support for the high-quality development of the high-speed bearing.

IPC Classes  ?

• G06F 30/17 - Mechanical parametric or variational design

Abstract

Aiming at a hardness mismatch phenomenon in the existing structure hardness design process according to an integral intensity viewpoint, the invention provides a quantitative matching design method for structure heat treatment-hardness distribution. The specific method comprises determining an ideal static intensity field distribution of the dangerous section of the structure according to a limit static stress distribution of a dangerous section of the structure; determining an ideal hardness distribution of the dangerous section of the structure by utilizing an intensity-hardness conversion relation; determining heat treatment requirements such as surface hardness, core hardness and the like by combining material and heat treatment mode; determining an actual hardness distribution of the dangerous section of the structure according to a material end quenching curve and the heat treatment requirement.

IPC Classes  ?

• G06F 30/20 - Design optimisation, verification or simulation
• G06F 30/17 - Mechanical parametric or variational design
• G06F 30/13 - Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
• G06F 119/14 - Force analysis or force optimisation, e.g. static or dynamic forces

Abstract

A wire-driven wrist three-degree-freedom training mechanism comprises a wrist executing mechanism, a wrist linking mechanism, a forearm mechanism and an elbow linking mechanism, and adopts a wire-driven design, through comprehensive utilization of two rotation pairs in the training mechanism, wherein wrist three-degree-freedom passive training is realized through two driving motors. By way of the implementation of the wire-driven wrist three-degree-freedom training mechanism, a patient can adopt a passive training manner to perform rehabilitating training of the upper limbs. The wire-driven wrist three-degree-freedom training mechanism includes a position compensation mechanism and can be adapted to individual differences of patients.

IPC Classes  ?

• A61H 1/02 - Stretching or bending apparatus for exercising

Abstract

The present invention provides a series shunt wound direct-current (DC) motor driving device and electrical equipment. The series shunt wound DC motor driving device provided by the present invention includes a series shunt wound DC motor, a DC power supply and a chopper. The chopper is provided with m chopping units; a control signal includes m unit control signals that respectively correspond to the m chopping units and are formed according to a preset phase stagger rule; each of the unit control signals includes w switching control signals that correspond to w switching control ends in the corresponding chopping units; m first power output ends of all the chopping units and m second power output ends of all the chopping units respectively correspondingly form m pairs of power output terminals; and m pairs of external wiring terminals of the series shunt wound DC motor are connected with the m pairs of power output terminals in a one-to-one correspondence manner, wherein m is a positive integer of being not less than 2; and w is 1, 2 or 4.

IPC Classes  ?

• H02P 7/12 - Switching field from series to shunt excitation or vice versa

Abstract

The present invention provides a shunt series wound direct-current (DC) motor driving device and electric equipment. The shunt series wound DC motor driving device provided by the present invention includes: a shunt series wound DC motor; a DC power supply; and a chopper, wherein the chopper comprises m chopping units, a control signal comprises m unit control signals that respectively correspond to the m chopping units and are formed according to a preset phase stagger rule; each of unit control signals comprises w switching control signals corresponding to w switching control ends in the corresponding chopping units; the m first power output ends of all the chopping units and the m second power output ends of all the chopping units respectively correspondingly form m pairs of power output terminals; the m pairs of external terminals of the shunt series wound DC motor are connected with the m pairs of power output terminals in a one-to-one correspondence manner, wherein m is a positive integer that is not less than 2, and w is 1, 2 or 4.

IPC Classes  ?

• H02P 7/06 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current

Abstract

The present invention provides a shunt wound direct-current (DC) motor driving device and electrical equipment. The shunt wound DC motor driving device provided by the present invention includes a shunt wound DC motor, a DC power supply, and a chopper that converts a constant voltage into a variable voltage based on a control signal and provides the variable voltage for the shunt wound DC motor. The chopper is provided with m chopping units; the control signal includes m unit control signals that respectively correspond to the m chopping units and are formed according to a preset phase stagger rule; each of the unit control signals includes w switching control signals that correspond to w switching control ends in the corresponding chopping units; m first power output ends of all the chopping units and m second power output ends of all the chopping units respectively correspondingly form m pairs of power output terminals; and m pairs of external wiring terminals of the shunt wound DC motor are connected with the m pairs of power output terminals in a one-to-one correspondence manner, wherein m is a positive integer of being not less than 2; and w is 1, 2 or 4.

IPC Classes  ?

• H02K 1/14 - Stator cores with salient poles
• H02K 1/26 - Rotor cores with slots for windings
• H02K 11/33 - Drive circuits, e.g. power electronics
• H02K 23/06 - DC commutator motors or generators having mechanical commutatorUniversal AC/DC commutator motors characterised by arrangement for exciting having shunt connection of excitation windings
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes

Abstract

A semi-active rigid-flexible coupling type exoskeleton based on a single-loop bidirectional damping regulator, which relates to a boosting mechanism in the field of robots, and comprises: a waist assembly (1), leg assemblies (2) and a hydraulic damping regulator (3). The hydraulic damping regulator (3) comprises a cylinder body (31), a titanium alloy sleeve (32), a cylinder cover (33), a piston (34), an extension assistance spring (35), an oil injection port plug (38), a staggered channel type valve body (39), a valve body sealing seat (310), a valve body end bevel gear (311), an angle sensor (312), a motor fixing seat (313), a direct current servo motor (314), a coupling (315) and a motor end bevel gear (316). The exoskeleton may achieve the boost or damping adjustment of a heavy object carrying mode or a load walking mode, and in the heavy object carrying mode, both a from-high-to-low carrying mode and a from-low-to-high carrying mode are supported, and the applicability is high; in addition, assistance may be provided for the knee joints when the knee joints naturally bend in a bending over state; a semi-active torque adjustment system is composed of a hydraulic damper and spring, and the size of the boost and damping force are adjustable; and the weight is light, and human-machine coupling is strong.

IPC Classes  ?

• B25J 9/00 - Programme-controlled manipulators
• F16F 9/00 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
• A61H 3/00 - Appliances for aiding patients or disabled persons to walk about
• A61H 1/02 - Stretching or bending apparatus for exercising
• A61F 2/64 - Knee joints
• F16K 15/18 - Check valves with actuating mechanismCombined check valves and actuated valves

Abstract

The invention provides a separately excited direct current motor drive apparatus and electric equipment. The separately excited direct current motor drive apparatus includes: a separately excited direct current motor; a direct current power supply; an armature chopper; and a field chopper, wherein the armature chopper has m armature chopper units, each armature chopper unit has a pair of armature power output terminals and w armature switch control ends, the field chopper has n field chopper units, each field chopper unit has a pair of field power output terminals, the separately excited direct current motor has m pairs of armature external terminals and n pairs of field external terminals, the m pairs of armature external terminals are connected to the m pairs of armature power output terminals in a one-to-one correspondence manner, the n pairs of field external terminals are connected to the n pairs of field power output terminals in a one-to-one correspondence manner, m is a positive integer not less than 2, n is a positive integer not less than 2, and w is 1, 2 or 4.

IPC Classes  ?

• H02P 7/10 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by manual control without auxiliary power of motor field only

Abstract

The invention provides a series wound DC motor driving device and electrical equipment. The series wound DC motor driving device provided by the invention comprises a series wound DC motor, a DC power supply and a chopper, wherein the chopper comprises m chopping units; control signals comprise m unit control signals formed according to preset phase stagger rules and corresponding to the m chopping units separately, and each unit control signal comprises w switch control signals corresponding to w switch control ends in the corresponding chopping units; m pairs of power output terminals are formed at m first power output ends and m second power output ends of the chopping units correspondingly, and m pairs of external terminals of the series wound DC motor are connected with m pairs of power output terminals correspondingly one by one; m is a positive integer not smaller than 2, and w is 1, 2 or 4.

IPC Classes  ?

• H02K 1/14 - Stator cores with salient poles
• H02K 3/18 - Windings for salient poles
• H02K 11/33 - Drive circuits, e.g. power electronics
• H02K 23/08 - DC commutator motors or generators having mechanical commutatorUniversal AC/DC commutator motors characterised by arrangement for exciting having series connection of excitation windings
• H02K 1/26 - Rotor cores with slots for windings
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes

Abstract

Proposed is a method for sorting lithium cells, comprising rapid sorting and high-precision sorting. The method of the present invention can quickly and accurately classify cells according to self-discharge, and also because of low-cost devices used, is suitable for large-scale self-discharge sorting. By means of the two sorting methods of rapid sorting and high-precision sorting, the present invention can implement the removal of a cell with a large self-discharge rate from a batch of cells, and implement sorting and grouping of cells with similar self-discharge rates, and has a wider range of application.

IPC Classes  ?

• B07C 5/344 - Sorting according to other particular properties according to electric or electromagnetic properties
• G01R 31/382 - Arrangements for monitoring battery or accumulator variables, e.g. SoC
• B07C 5/02 - Measures preceding sorting, e.g. arranging articles in a stream, orientating
• H01M 10/44 - Methods for charging or discharging

Abstract

CDD of a battery by means of a conventional capacity estimation method; S3, calculating the ratio of the discharge capacity to the charge capacity, and when the ratio is less than a threshold value, determining that an electric leakage fault occurs; and S4, calculating an electric leakage current estimation value according to the ratio of the discharge capacity to the charge capacity. According to the present invention, quantitative diagnosis of an electric leakage current of a battery cell can be realized, thereby improving the usage safety and reliability thereof.

IPC Classes  ?

• G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
• G01R 31/387 - Determining ampere-hour charge capacity or SoC
• G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
• G01R 31/52 - Testing for short-circuits, leakage current or ground faults

Abstract

Disclosed is an awake tracheal intubation device with gas navigation and visualization, the device comprising a gas guide tube (1) and a tracheal catheter (3), with an opening (11) being provided at a position on the gas guide tube (1) close to a bevel end; and the device further comprises a guiding tube (2) which is inserted from one end of the gas guide tube (1) and extends out from the opening (11), wherein the guiding tube (2) is internally provided with a camera (21) and a gas guiding tube (22) which penetrate and extend to an end of the guiding tube, one end of the gas guiding tube (22) is connected to a detector (5) and the other end thereof is provided with a collector, and the detector (5) is in communication with an air pump (4). The tracheal intubation device has a high success rate of intubation, has few complications, is simple and convenient to operate, and is economical and practical.

IPC Classes  ?

• A61M 16/04 - Tracheal tubes
• A61B 1/04 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor combined with photographic or television appliances
• A61B 1/267 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for the respiratory tract, e.g. laryngoscopes, bronchoscopes
• A61B 5/08 - Measuring devices for evaluating the respiratory organs

Abstract

A method for qualitative identification and quantitative determination of caffeine in a drug. In the method, terahertz absorption coefficient spectra of drugs with different concentrations of caffeine are measured, from which the frequency points, amplitudes and peak areas of characteristic peaks of the drugs with different concentrations of caffeine are obtained as characteristic quantities. Concentration gradients are established between the concentrations and the characteristic quantities, respectively. The characteristic quantities are imported to the SVR model to establish a training set and a test set. Finally, the qualitative identification and quantitative analysis of caffeine in unknown drugs are achieved.

IPC Classes  ?

• G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
• G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation

Abstract

A soft package battery balancing device for a vehicle and a balancing method for soft package batteries. The balancing method for soft package batteries for a vehicle uses the soft package battery balancing device for a vehicle to connect batteries to be balanced to a parallel balancing circuit, and uses a first-in-first-out order to sequentially balance the batteries, wherein the SOC for each balanced battery is kept within a preset range, the number of batteries entering the soft package battery balancing device for a vehicle is N, and the balancing time for the batteries is T. The soft package battery balancing device for a vehicle comprises a clamp clamping-type or a copper plate pressing-type. The space and costs required for a balancing operation can be reduced while significantly improving the battery balancing efficiency, and the SOC difference for the balanced batteries is guaranteed to be kept within a certain range, i.e. the device is a low cost and highly efficient battery balancing device. The device is suitable for balancing a large batch of batteries on a production line.

IPC Classes  ?

• B60L 58/10 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells

Abstract

The present invention provides a high-performance lithium-containing organic sulfur electrode material and a preparation method of an integrated flexible electrode. According to the present invention, 1,3-diisopropenyl benzene with diene bonds and Li2S6 are used as precursors to react to generate the lithium-containing organic sulfide Poly (Li2S6-r-DIB) through an in-situ polymerization method. The synthesized lithium-containing organic sulfide Poly (Li2S6-r-DIB) can be directly attached to a flexible conductive carbon cloth to prepare the integrated flexible electrode due to its good viscosity when heated to a certain temperature. The obtained flexible electrode has the advantages of high capacity, high flexibility, stable structure and the like.

IPC Classes  ?

• H01M 4/60 - Selection of substances as active materials, active masses, active liquids of organic compounds
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/052 - Li-accumulators
• H01M 4/04 - Processes of manufacture in general
• H01M 4/1399 - Processes of manufacture of electrodes based on electro-active polymers

Abstract

Disclosed is a magnetorheological fluid particle impact damper, which includes a damper cavity unit, wherein the damper cavity unit is provided with an electromagnetic coil in a circumferential direction, the damper cavity unit is internally provided with a plurality of horizontal shock absorbers in a uniform manner, and the left and right ends of the damper cavity unit are symmetrically provided with disc-type shock absorbers; the shock absorbers and the disc-type shock absorbers are respectively connected to the inner wall of the damper cavity unit through springs; the horizontal shock absorber includes a horizontal magnetorheological fluid cavity filled with magnetorheological fluid, the horizontal magnetorheological fluid cavity is internally provided with a horizontal impactor container, the horizontal impactor container is internally provided with a first impactor group consisting of several impactors of different sizes; the disc-type shock absorber comprises a disc-type magnetorheological fluid cavity which is filled with magnetorheological fluid; the disc-type magnetorheological fluid cavity is slidably connected to a plurality of disc-type impactor containers, and the disc-type impactor containers are distributed in a circular array and internally provided with a second impactor group; and the present disclosure effectively improves the vibration reduction effect.

IPC Classes  ?

• F16F 13/00 - Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs

Abstract

Disclosed is a storage battery box, comprising a box body, a cover plate and partition plates. The box body is a cuboid structure with an opening at the upper end thereof. A plurality of partition plates are fixed parallel to each other in the box body. The partition plates divide the box body into several mounting slots of the same size. Upper portions of the partition plates are provided with through holes, a side edge of the cover plate is hinged to a rear side of the box body by means of a hinge, and another side edge of the box body is detachably connected to a front side of the box body. The cover plate is provided with a positive electrode pole and a negative electrode pole. A left side upper portion and a right side upper portion of the box body are both provided with vent holes. A left side outer surface and a right side outer surface of the box body are provided with arc-shaped curved plates, and the arc-shaped curved plates are located directly above the vent holes. Compared with the prior art, the storage battery box of the present invention not only facilitates heat dissipation, but also can prevent the entry of rain water.

IPC Classes  ?

• H01M 50/112 - Monobloc comprising multiple compartments

Abstract

meanmean of a battery pack, and the difference (dSOC) between the state of charge of each cell and the mean state of charge of the battery pack, and then obtaining the SOC of each cell (S1); under charging and discharging working conditions, respectively calculating the quantity of charges transferred by each cell at each moment and SOC variable amount of each cell, and then estimating, by using a least square method, the capacities of each battery cell under the charging and discharging working conditions (S2); and comparing charging and discharging capacity estimation results of the battery cells, wherein battery cells with similar capacities and similar charging and discharging capacities are normal cells; a cell with an estimated value under the discharging working condition being less than that of a normal cell and with an estimated value under the charging working condition being greater than that of a normal cell is a micro-short-circuited cell; and a cell with estimated values under the charging and discharging working conditions both being less than those of the normal cell is a small-capacity cell (S3). The diagnosis method, which is accurate in terms of a diagnosis result, and can be used for effectively distinguishing a micro-short-circuit fault of a battery from a small-capacity fault of the battery, is provided.

IPC Classes  ?

• G01R 31/385 - Arrangements for measuring battery or accumulator variables
• G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
• G01R 31/52 - Testing for short-circuits, leakage current or ground faults
• G01R 31/56 - Testing of electric apparatus

Abstract

A method for reasonably adjusting a discharge cut-off voltage of a lithium battery along with battery life attenuation, comprising: obtaining a charge cut-off voltage, a discharge cut-off voltage, and a rated capacity on the basis of a lithium battery basic parameter table, then setting a safe charge cut-off voltage and a safe discharge cut-off voltage to obtain an initial safe discharge capacity, and finally setting a preset discharge capacity of the battery; estimating a discharged capacity by using an ampere-hour integral method, using the preset discharge capacity as a discharge standard, and stopping discharging when the discharged capacity reaches the preset discharge capacity; enabling the safe discharge capacity in a battery life cycle to be gradually smaller than the preset discharge capacity, and enabling the battery to stop discharging when the voltage reaches the safe discharge cut-off voltage. The stability of an output capacity under the condition of battery capacity attenuation is ensured by controlling a discharge capacity to be unchanged, so that a user feels that the endurance mileage of an electric vehicle is stable and unchanged within a certain period, and the characteristics of a simple adjustment and control method and convenience in commercialization are provided.

IPC Classes  ?

• H01M 10/44 - Methods for charging or discharging

Abstract

Provided is a Lactobacillus plantarum AR113 strain having improvement effect on cerebral stroke, with an accession number of CGMCC No.13909. The Lactobacillus plantarum AR113 strain can increase the antioxidant enzyme activity of brain tissues, reduce the level of oxidation products, activate the Nrf-ARE signal pathway, and regulate the relative expression of antioxidant factors Nrf2, NQO-1, and HO-1, and can also down-regulate the mRNA expression of pro-apoptotic factors Cyt-C, Caspase-3, and Bax, and up-regulate the relative expression of anti-apoptotic factor Bcl-2, thereby improving brain cell damage caused by cerebral ischemia reperfusion.

IPC Classes  ?

• C12N 1/20 - BacteriaCulture media therefor
• A61K 35/747 - Lactobacilli, e.g. L. acidophilus or L. brevis
• A61P 9/10 - Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
• A61P 25/00 - Drugs for disorders of the nervous system
• C12R 1/25 - Lactobacillus plantarum

Abstract

44 to obtain two extraction solutions with a solid-liquid ratio of 1:5-1:25 v/m; step 3, combining the two extraction solutions and then adding a suitable amount of glacial acetic acid to the combined solution for neutralization, leaving the mixture to stand for a first preset time, and then centrifuging the mixture and collecting the precipitate; step 4, washing the precipitate with ultra-pure water three times, then dissolving the precipitate with an LiCl-DMSO solution, dialyzing the precipitate which is insoluble in the LiCl-DMSO solution for a second preset time, and freeze-drying the precipitate to obtain an Antrodia cinnamomea water-insoluble dietary fiber component ACA-IDK; and step 5, performing ethanol/DMSO fractional precipitation on the LiCl-DMSO solution, collecting the precipitate and dialyzing same for a third preset time, and freeze-drying the precipitate to obtain an Antrodia cinnamomea water-insoluble dietary fiber component ACA-DK. The prepared Antrodia cinnamomea water-insoluble dietary fibers can be used in food additives for lowering cholesterol and lipids and meal replacement foods.

IPC Classes  ?

• A23L 33/21 - Addition of substantially indigestible substances, e.g. dietary fibres
• A23L 31/00 - Edible extracts or preparations of fungiPreparation or treatment thereof

Abstract

The present disclosure provides a terahertz biological detection method and a device comprising the same, in which biological samples with different molecular formulas have their characteristic peaks in the terahertz band. In the process of sweeping frequency with terahertz, when the terahertz frequency point corresponds to the characteristic peak frequency of the substance to be detected, resonant absorption occurs, and the transmitted/reflected terahertz wave electric field intensity will suddenly decrease. In the electromagnetically induced transparency spectrum corresponding to the Rydberg quantum state, the signal splitting amplitude is significantly reduced. Therefore, the characteristic peak frequency and specific content of the substance to be detected can be accurately determined by comparing the dependence of the Rydberg quantum state with the additional terahertz electric field intensity on the excitation energy level.

IPC Classes  ?

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

Abstract

An adversarial optimization method for a training process of a generative adversarial neural network. In a generator G, an optimal transmission problem is converted into a solution to an elliptic-type Monge-Ampere partial differential equation (MAPDE), and in order to solve the MAPDE of n (n>3) dimensions, a Neumann boundary condition is improved and the discretization of the MAPDE is extended, so as to obtain optimal mapping between the generator and a discriminator, thereby constituting an adversarial network MAGAN. According to the method, during the process of training a defense network, by means of overcoming a loss function of optimal mapping, the defense network can obtain the maximum distance between two measures, obtain filtered safe samples, and successfully establish an effective attack method for GANs, such that the precision is improved by 5.3%. In addition, an MAGAN can be stably trained without adjusting hyper-parameters, thereby greatly improving the accuracy of an unmanned driving target classification and identification system.

IPC Classes  ?

• G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints

Abstract

Panax quinquefolius sample is obtained, and converted into the frequency domain spectral information by Fourier transform to calculate a terahertz absorption spectrum. The identification is performed by observing whether there are characteristic absorption peaks of pseudoginsenoside F11 in the terahertz absorption spectrum.

IPC Classes  ?

• G01N 21/3586 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation by Terahertz time domain spectroscopy [THz-TDS]
• G01N 1/28 - Preparing specimens for investigation
• G01N 21/3563 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solidsPreparation of samples therefor
• G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light

Abstract

To solve the technical problem of the incapacity to perform a quantitative matching design of residual compressive stress in the process of prior structural cold working-residual compressive stress design, the invention provides a method of structural cold working-residual compressive stress distribution quantitative matching design, characterized by treating the fatigue strength of a mechanical structure and parts as a field, and matching a structural stress field and a fatigue strength field organically, to quantitatively match the residual compressive stress in conjunction with characteristics of the cold working process. The method specifically includes determination of the maximum stress amplitude and a gradient distribution thereof at a dangerous position of the structure, determination of an ideal fatigue strength distribution of the dangerous cross-section of the structure, determination of a fatigue strength field according to curves of end quenching tests for material and a requirement for heat treatment, determination of the limit of the residual compressive stress according to characteristics of the structural cold working process, and determination of an actual residual compressive stress distribution of the dangerous cross-section in conjunction with cold working and the fatigue strength distribution.

IPC Classes  ?

• G06F 30/20 - Design optimisation, verification or simulation
• G06F 30/17 - Mechanical parametric or variational design
• C21D 11/00 - Process control or regulation for heat treatments
• G06F 119/14 - Force analysis or force optimisation, e.g. static or dynamic forces

Abstract

Provided is a system for measuring gas temperature and component concentrations in a combustion field based on optical comb. The system includes two pulse laser devices, two continuous laser devices, a beam splitting device, a measurement path, an interference signal detecting device, an optical processing and electrical processing device and a signal acquisition and analysis device. The measurement path refers to the combustion field to be measured. The interference signal detecting device outputs an interference signal. The optical processing and electrical processing device includes several optic elements and electrical elements, and outputs an adaptive compensation signal and an asynchronous sampling clock signal after a series of processing on output of the two pulse laser devices and two continuous laser devices. The signal acquisition and analysis device outputs the measurement result based on the adaptive compensation signal, the asynchronous sampling clock signal and a stable interference signal.

IPC Classes  ?

• G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
• G01J 5/58 - Radiation pyrometry, e.g. infrared or optical thermometry using absorptionRadiation pyrometry, e.g. infrared or optical thermometry using extinction effect
• G01N 33/00 - Investigating or analysing materials by specific methods not covered by groups

Abstract

The present invention provides a direct current motor, comprising: a casing; m pairs of brushes fixed within the casing; a stator provided within the casing, including m main poles corresponding to the m pairs of brushes, and n field winding parts; and a rotor provided within the stator, including a plurality of armature windings in a predetermined connection, wherein each pair of main poles includes an S-polarity main pole and an N-polarity main pole; each pair of brushes includes an S-pole corresponding brush corresponding to the S-polarity main pole, and an N-pole corresponding brush corresponding to the N-polarity main pole, the field winding part includes k field winding units, each field winding unit is made up of field coils formed by winding an insulated conductor strip, which is made of a metal wire coated with an insulating layer, around the m pairs of main poles, and m is a positive integer not less than 2, n is 1 or 2, and k is a positive integer not less than 2.

IPC Classes  ?

• H02K 23/06 - DC commutator motors or generators having mechanical commutatorUniversal AC/DC commutator motors characterised by arrangement for exciting having shunt connection of excitation windings
• H02K 1/14 - Stator cores with salient poles
• H02K 3/18 - Windings for salient poles
• H02K 3/28 - Layout of windings or of connections between windings
• H02K 3/30 - Windings characterised by the insulating material
• H02K 3/32 - Windings characterised by the shape, form or construction of the insulation
• H02K 5/14 - Means for supporting or protecting brushes or brush holders
• H02K 13/10 - Arrangements of brushes or commutators specially adapted for improving commutation
• H02K 23/08 - DC commutator motors or generators having mechanical commutatorUniversal AC/DC commutator motors characterised by arrangement for exciting having series connection of excitation windings
• H02K 23/30 - DC commutator motors or generators having mechanical commutatorUniversal AC/DC commutator motors characterised by the armature windings having lap or loop windings

Abstract

The present invention discloses a preparation method of an all-solid-state lithium battery based on borohydride/sulfide two-layer fast ion conductors, comprising the steps of: Step 1: cold-pressing a borohydride fast ion conductor and a sulfide fast ion conductor into a two-layer electrolyte; Step 2: mixing a cathode active material, a sulfide fast ion conductor, and a conductive agent according to a ratio to prepare a cathode of the all-solid-state lithium battery, and cold-pressing the cathode onto a side, corresponding to the sulfide fast ion conductor, of the two-layer electrolyte obtained in Step 1; and taking a lithium metal plate as an anode of the all-solid-state lithium battery, and cold-pressing the anode onto a side, corresponding to the borohydride fast ion conductor, of the two-layer electrolyte obtained in Step 1; and Step 3: packaging a material obtained in Step 2 to obtain the all-solid-state lithium battery based on borohydride/sulfide two-layer fast ion conductors. According to the present invention, an all-solid-state battery with high working voltage and good cycle performance is achieved, and the preparation process is simple and has good repeatability, thereby being suitable for large-scale commercial production.

IPC Classes  ?

• H01M 10/0562 - Solid materials
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators

Abstract

A magnetorheological fluid particle impact damper, comprising a damper cavity unit (2). An electromagnetic coil (1) is provided in the circumferential direction of the damper cavity unit (2), several horizontal shock absorbers are uniformly provided inside, and disc-type shock absorbers are symmetrically provided at the left end and the right end of the damper cavity unit; the horizontal shock absorbers and the disc-type shock absorbers are separately connected to the inner wall of the damper cavity unit (2) by means of springs; each horizontal shock absorber comprises a horizontal magnetorheological fluid cavity (5) filled with a magnetorheological fluid; a horizontal impactor container (6) is provided in each horizontal magnetorheological fluid cavity (5); a first impactor group is provided in each horizontal impactor container (6); the first impactor group consists of several impactors having different sizes; the disc-type shock absorber comprises a disc-type magnetorheological fluid cavity (18) filled with the magnetorheological fluid; the disc-type magnetorheological fluid cavity (18) is slidably connected to several disc-type impactor containers (19); the disc-type impactor containers (19) are distributed in a circumference array; a second impactor group is provided in the disc-type impactor containers (19). A vibration reduction effect is improved.

IPC Classes  ?

• F16F 9/53 - Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically

Abstract

The present invention provides a direct current motor, including: a casing; m pairs of brushes fixed within the casing; a stator provided within the casing, including m main poles corresponding to the m pairs of brushes, and n field winding parts; and a rotor provided within the stator, wherein each pair of main poles includes an S-polarity main pole and an N-polarity main pole, two neighboring main poles are different in polarity, the two brushes in each pair of brushes are arranged at neighboring positions, each pair of brushes includes an S-pole corresponding brush corresponding to the S-polarity main pole, and an N-pole corresponding brush corresponding to the N-polarity main pole, each field winding part includes m field winding units corresponding to the m pairs of main poles, respectively, each field winding unit is made up of field coils formed by winding an insulated conductor strip, which is made of a metal wire coated with an insulating layer, around one pair of main poles corresponding to each other, and m is a positive integer not less than 2, and n is 1 or 2.

IPC Classes  ?

• H02K 1/14 - Stator cores with salient poles
• H02K 23/08 - DC commutator motors or generators having mechanical commutatorUniversal AC/DC commutator motors characterised by arrangement for exciting having series connection of excitation windings
• H02K 3/28 - Layout of windings or of connections between windings
• H02K 23/06 - DC commutator motors or generators having mechanical commutatorUniversal AC/DC commutator motors characterised by arrangement for exciting having shunt connection of excitation windings
• H02K 23/18 - DC commutator motors or generators having mechanical commutatorUniversal AC/DC commutator motors characterised by arrangement for exciting having displaceable main or auxiliary brushes

Abstract

Provided is a method for testing petroleum by using a staggered-structure toroidal dipole chip. The method comprises the following steps: step one, performing drying pre-treatment on the testing environment of a terahertz spectrum analysis system, measuring a frequency spectrum under a drying condition, and taking the frequency spectrum as a reference spectrum; step two, transferring a crude oil sample using a pipette, and uniformly applying the crude oil sample onto an upper surface of a staggered-structure toroidal dipole chip; step three, putting the staggered-structure toroidal dipole chip coated with the crude oil sample into the terahertz spectrum analysis system after drying, and enabling a terahertz pulse signal of the terahertz spectrum analysis system to vertically irradiate the chip for testing, in order to obtain a testing spectrum of the crude oil sample; and step four, subtracting the reference spectrum from the testing spectrum to obtain a transmission spectrum of the crude oil sample, wherein the staggered-structure toroidal dipole chip is a terahertz chip designed on the basis of a toroidal dipole effect.

IPC Classes  ?

• G01N 21/25 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands

Abstract

A substance fingerprint spectrum sensing device and measuring method. The sensing device comprises: a supporting frame (10) provided horizontally; a moving unit (20), comprising a translation stage moving member (21) provided on the supporting frame (10) and an acrylic translation stage (22) connected on the translation stage moving member (21) and used for moving in a vertical direction under the driving of the translation stage moving member (21), the acrylic translation stage (22) being provided horizontally; a grating unit (30), placed on the acrylic translation stage (22) and used for carrying a substance; and a prism (40), provided on the supporting frame (10) and directly above the grating unit (30), the grating unit (30) comprising a grating (31) provided with periodic grooves (311) on the surface and a polyethylene filler (32) filling the grooves (311), and the grooves (311) being filled with the polyethylene filler (32) so that the grating unit (30) has a flat surface for carrying the substance. According to the measuring method, the fingerprint spectrum of a substance is measured by a terahertz wave of a terahertz spectroscopy system and the substance fingerprint spectrum sensing device.

IPC Classes  ?

• G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light

Abstract

26266-r-DIB) shows good viscosity when heated to a certain temperature, same may be directly attached to a flexible conductive carbon cloth to thereby produce an integrated flexible electrode. The obtained flexible electrode has the advantages of having high capacity, high flexibility, a stable structure and so on.

IPC Classes  ?

• C08G 75/0254 - Preparatory processes using metal sulfides
• H01M 4/137 - Electrodes based on electro-active polymers

Abstract

A three-port silicon beam splitter chip includes an input waveguide, three output waveguides, and a coupling region disposed between the input waveguide and the output waveguides and being in a square shape. The input waveguide and the output waveguide have a same width K, where 490 nm

IPC Classes  ?

• G02B 27/10 - Beam splitting or combining systems
• G02B 6/125 - Bends, branchings or intersections
• G02B 6/13 - Integrated optical circuits characterised by the manufacturing method

Abstract

A multi-generator generative adversarial network (GAN) learning method for image denoising, which proposes a GAN having three generators. The generator is used for denoising Poisson noise, Gaussian blur noise and distortion noise respectively, so as to improve the quality of a low-dose CT (LDCT) image. The generator uses a residual structure, a mapping short connection used in a residual network can avoid the vanishing gradient problem in a deep neural network, and can accelerate network training. GAN training is always a challenging problem due to an unreasonable metric between a generative distribution and a real distribution; and in the present invention, training can be stably performed by limiting a spectral norm of a weight matrix, enhancing the robustness of a training model.

IPC Classes  ?

• G06T 5/00 - Image enhancement or restoration

Abstract

The disclosure provides a super-resolution fast-scanning coherent Raman scattering imaging method. The method: using pump light and Stokes light; combining the pump light and the Stokes light to obtain combined light; expanding/collimating the combined light; the combined light after the expanding/collimating entering a galvanometer, passing through a group of a scanning lens/a tube lens and being focused on a back focal plane of a microobjective and incidenting into a biological sample, such that the biological sample is excited to emit anti-Stokes light; collecting the excited anti-Stokes light by a detector. This method is characterized by deflecting, at different angles, a single light spot focused on the microobjective through a diffractive optics group including DOE and a dispersive element, into a plurality of 1×N light spots to incident into the biological sample, such that the anti-Stokes light excited from smaller molecules and being condensed and filtered, is collected by the detector.

IPC Classes  ?

• G01J 3/44 - Raman spectrometryScattering spectrometry
• G01N 21/65 - Raman scattering
• G01J 3/28 - Investigating the spectrum

Abstract

Provided in the present invention is a calculation method for a non-steady-state radiant heat transfer load of a layered air conditioner in a large space building, which is used to perform non-steady-state calculations on a radiant heat transfer load from a non-air conditioner area to an air conditioner area in a layered air conditioner load of a large space building, so as to resolve the problem in which the radiant heat transfer load can only be calculated stably in a layered air conditioner design, and the problem of inaccurate calculations, and so on. The method is characterized in comprising the following steps: step S1, fitting hour-by-hour outdoor air integrated temperatures, and expanding changes in the hour-by-hour outdoor air integrated temperatures into a Fourier series form; step S2, calculating hour-by-hour internal wall temperatures; step S3, calculating hour-by-hour radiant heat transfer amounts; step S4, fitting the hour-by-hour radiant heat transfer amounts; step S5, calculating a non-steady-state radiant heat transfer load.

IPC Classes  ?

• G06F 30/13 - Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads

Abstract

The present disclosure provides a stealth dicing method and apparatus. With the method, the focusing element focuses the laser beam on the surface of material to be diced, and the dynamic-equilibrium plasma channel is formed in the material to be diced by means of self-focusing and defocusing effect of plasma generated by ionizing the material to be diced. The modified layer may be formed in the material to be diced throughout the plasma channel, so as to realize stealth dicing.

IPC Classes  ?

• H01L 21/78 - Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
• H01L 21/268 - Bombardment with wave or particle radiation with high-energy radiation using electromagnetic radiation, e.g. laser radiation
• B23K 26/064 - Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
• B23K 26/08 - Devices involving relative movement between laser beam and workpiece
• B23K 26/06 - Shaping the laser beam, e.g. by masks or multi-focusing
• B23K 26/0622 - Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
• B23K 26/402 - Removing material taking account of the properties of the material involved involving non-metallic material, e.g. isolators
• B23K 26/53 - Working by transmitting the laser beam through or within the workpiece for modifying or reforming the material inside the workpiece, e.g. for producing break initiation cracks
• B23K 26/073 - Shaping the laser spot
• B23K 103/00 - Materials to be soldered, welded or cut

Abstract

A fly-eye lens preparation method comprises the following steps: preparing a fly-eye mold (1) and a fly-eye base (2), wherein a hemispherical recess matching the fly-eye base (2) is provided on the fly-eye mold (1), the bottom of the hemispherical recess is provided with a plurality of recessed surfaces arranged in an array, the fly-eye base (2) is a hemispherical structure and is provided with micro-pipes (3) therein passing through a spherical surface and a flat surface of the fly-eye base (2), and openings of the micro-pipes (3) on the spherical surface are arranged consistently with the recessed surfaces in the fly-eye mold (1); and matchingly disposing the fly-eye base (2) in the fly-eye mold (1), injecting polydimethylsiloxane into the micro-pipes (3) of the fly-eye base (2), curing the polydimethylsiloxane, and removing the fly-eye base (2) from the fly-eye mold (1) so as to obtain a fly-eye lens.

IPC Classes  ?

• G02B 3/00 - Simple or compound lenses

Abstract

For a mismatch phenomenon between a stress field and overall strength in the existing structural fatigue strength design process performed according to an overall strength perspective, a structural fatigue strength design method based on a strength field is provided in the present invention. Fatigue strength of a mechanical structure and fatigue strength of a part serve for field processing, a structural stress field and a fatigue strength field are organically matched, and the method specifically comprises: according to the highest stress amplitude distribution of a dangerous section of a structure, determining ideal fatigue strength field distribution of the dangerous section of the structure; designing an actual fatigue strength field of the dangerous section of the structure by combining materials, heat treatment and a cold strengthening-residual stress field; and quantitatively evaluating a fatigue strength design level of the dangerous section of the structure by applying a whole-field stress-strength interference model.

IPC Classes  ?

• G06F 17/00 - Digital computing or data processing equipment or methods, specially adapted for specific functions

Abstract

For a mismatch phenomenon between a stress field and overall strength in the existing structural static strength design process performed according to an overall strength perspective, a structural static strength design method based on a strength field is provided in the present invention. Static strength of a mechanical structure and static strength of a part serve for field processing, a structural stress field and a static strength field are organically matched, and the method specifically comprises: according to the extreme static stress amplitude distribution of a dangerous section of a structure, determining ideal static strength field distribution of the dangerous section of the structure; designing an actual static strength field of the dangerous section of the structure by combining materials and heat treatment; and quantitatively evaluating a static strength design level of the dangerous section of the structure by applying a whole-field stress-strength interference model.

IPC Classes  ?

• G06F 16/00 - Information retrievalDatabase structures thereforFile system structures therefor

Abstract

Provided is a quantitative matching design method for structural cold working strengthening and residual compressive stress distribution, for resolving the problem in which it is not possible to implement quantitative matching design for residual compressive stress in existing structural cold working strengthening-residual compressive stress design processes. The invention treats and processes fatigue strengths of mechanical structures and components as fields, and matches a structural stress field and a fatigue strength field in an organic manner and combines the same with a cold working strengthening process feature to achieve quantitative matching of residual compressive stress. The specific method comprises: determining a maximum stress magnitude of a hazardous structure cross section and a gradient distribution thereof, determining an ideal fatigue strength distribution of the hazardous structure cross section, determining a fatigue strength field by means of a material end-quench curve and a thermal treatment requirement, determining a structural residual compressive stress limit according to a cold working strengthening process feature, combining the same with cold working strengthening and a texture fatigue strength distribution, and determining an actual residual compressive stress distribution of the hazardous structure cross section.

IPC Classes  ?

• G06F 17/00 - Digital computing or data processing equipment or methods, specially adapted for specific functions

Abstract

A full-field structural lightweight quantitative evaluation method based on static strength, performing full-field structural lightweight quantitative evaluation by matching a structural static strength field with a structural stress field. The method comprises: determining the ideal static strength field distribution of a dangerous structural section according to the highest stress distribution of the dangerous structural section; determining the static strength distribution of the dangerous structural section according to structure heat treatment requirements, an end quenching curve of the material and a strength-hardness transformation relation; and applying a stress-strength interference model to perform horizontal full-field lightweight quantitative evaluation on the dangerous structural section.

IPC Classes  ?

• G06F 17/00 - Digital computing or data processing equipment or methods, specially adapted for specific functions
• G01N 3/08 - Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces

Abstract

Disclosed in the present invention is a structural heat treatment-hardness distribution quantitative matching design method aimed at the phenomenon of hardness mismatch in existing structural hardness design processes carried out according to the viewpoint of overall strength. The specific method comprises: on the basis of the extreme static stress distribution of a structurally dangerous section, determining the ideal static strength field distribution of the structurally dangerous section; using a strength-hardness conversion relationship, determining the ideal hardness distribution of the structurally dangerous section; incorporating materials and heat treatment methods, determining heat treatment requirements such as surface hardness and core hardness; and, on the basis of the material end quenching curve and heat treatment requirements, determining the actual hardness distribution of the structurally dangerous section.

IPC Classes  ?

• G06F 17/00 - Digital computing or data processing equipment or methods, specially adapted for specific functions

Abstract

With regard to the phenomenon, occurring in the existing fatigue-strength-based lightweight design method, that fatigue-strength-based full-field lightweight level quantitative evaluation of mechanical structures and parts cannot be carried out, a fatigue-strength-based structural full-field lightweight quantitative evaluation method is provided in the present invention. A structural fatigue strength field is used to match a structural stress field to carry out structural full-field lightweight quantitative evaluation. The method specifically comprises: determining an ideal fatigue strength field distribution of a dangerous section of a structure according to a highest stress amplitude distribution of the dangerous section of the structure; determining a fatigue strength distribution of the dangerous section of the structure according to a static strength distribution requirement and a dangerous section residual stress distribution requirement; and applying a stress-strength interference model to carry out full-field lightweight level quantitative evaluation on the dangerous section of the structure.

IPC Classes  ?

• G06F 17/00 - Digital computing or data processing equipment or methods, specially adapted for specific functions

Abstract

A rope-driven wrist three-degree-of-freedom training mechanism used for upper limb rehabilitation, which relates to the field of upper limb rehabilitation mechanical structures, comprising a wrist actuation mechanism (100), a wrist connection mechanism (200), a forearm mechanism (300) and an elbow connection mechanism (400), and employing a rope-driven design. By means of the comprehensive use of two rotation pairs in the rope-driven wrist three-degree-of-freedom training mechanism, wrist three-degree-of-freedom passive training is controlled by two driving motors; patients may use the passive training means for upper limb rehabilitation training; and the training mechanism has a position compensation mechanism that may adapt to individual differences of different patients and improve the training effect and user experience of the patients. The mechanism is simple, and there is little motor radiation and noise, which may reduce the psychological stress of the patients.

IPC Classes  ?

• A61H 1/02 - Stretching or bending apparatus for exercising

Abstract

0∞∞∞∞ (S4). According to the method, numerical simulation continues to be completed directly from a certain flutter moment, the flutter process can be skipped, the flutter ending moment and the positions and speeds of the two collision plastids at the moment are directly obtained, the calculation precision is improved, and a large amount of calculation time is saved.

IPC Classes  ?

• G06F 17/11 - Complex mathematical operations for solving equations

Abstract

A preparation method for an all-solid-state lithium battery based on borohydride/sulfide double-layer fast ion conductors, comprising the following steps: at step 1, performing cold pressing on a borohydride fast ion conductor (2) and a sulfide fast ion conductor (3) to form a double-layer electrolyte; at step 2, proportionally mixing a positive electrode active material, the sulfide fast ion conductor, and a conductive agent so as to serve as the positive electrode of the all-solid-state lithium battery and performing cold pressing on one side of the sulfide fast ion conductor (3) of the double-layer electrolyte obtained at step 1, and using a lithium sheet as the negative electrode of the all-solid-state lithium battery and performing cold pressing on one side of the borohydride fast ion conductor (2) of the double-layer electrolyte obtained at step 1; and at step 3, packaging the materials obtained at step 2 to obtain the all-solid-state lithium battery based on the borohydride/sulfide double-layer fast ion conductors. The all-solid-state battery has a high working voltage and good cycle performance, is simple in preparation process and good in repeatability, and is applicable for large-scale commercial production.

IPC Classes  ?

• H01M 10/058 - Construction or manufacture
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

A method for quantitative detection of blood lipid in blood based on terahertz spectroscopy, including: matching the terahertz spectral absorption coefficient curves of blood samples obtained in step 3 with parameters of component concentration and component type of the blood lipid detected by hospital instruments, and establishing a terahertz blood lipid parameter database by combining the time-domain signal data of samples of the triglyceride and cholesterol; determining parameters of a support vector regression (SVR) model; performing a training with the training set as input to the SVR model to obtain a support vector and a corresponding weight; and testing the test set of an unknown blood sample using the trained support vector and the corresponding weight.

IPC Classes  ?

• G01N 21/3586 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation by Terahertz time domain spectroscopy [THz-TDS]
• G01N 1/40 - Concentrating samples
• G01N 21/3577 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water

Abstract

Provided is a Lactobacillus plantarum AR501 strain for mitigating the hazard of fried oil and a use thereof, the Lactobacillus plantarum strain AR501 being deposited in the China General Microbiological Culture Collection Centre, and the deposit number being CGMCC No.13910. The Lactobacillus plantarum strain AR501 has antioxidant activity and was able to reduce liver oxidative stress damage and fat attachment in mice fed with excessive fried oil, and can be used in a drug combination and fermented food for mitigating the hazard of excessive fried oil.

IPC Classes  ?

• C12N 1/20 - BacteriaCulture media therefor
• A61K 35/747 - Lactobacilli, e.g. L. acidophilus or L. brevis
• A61P 39/06 - Free radical scavengers or antioxidants

Abstract

A method for rapidly screening the self discharge of a parallel battery, which enables the rapid and precise screening of a battery that features large self discharge. The described method externalizes an inner short-circuit current of a battery, thus it may be identified simply by means of changes to external current whether the phenomena of self discharge exists for a battery cell. The described method features a simple principle and the costs of the equipment used are low, while a battery cell that features large self discharge may be screened out within a very short period of time.

IPC Classes  ?

• G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]

Abstract

Disclosed is a method for qualitative and quantitative determination of key substances in mixture based on terahertz spectrum. Terahertz spectrum of a reference mixture is trained through an SVR algorithm, and predicting parameters of key substances in the mixture to be determined after a model is generated. According to the method, an initial pure spectrum corresponding to each composition in the mixture does not need to be separately determined, no limitation on the number of samples contained in the mixture, and no limitation on frequency range to be determined, and the proportion requirement of the mixture in the early test stage is not limited, and the SVR model does not need to be re-trained after a database is formed in the later stage, and the result can be obtained immediately after the spectrum of item to be determined is introduced into the algorithm model.

IPC Classes  ?

• G01N 21/3586 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation by Terahertz time domain spectroscopy [THz-TDS]
• G06N 5/04 - Inference or reasoning models
• G06N 20/10 - Machine learning using kernel methods, e.g. support vector machines [SVM]

Abstract

The present invention discloses a vibration-damping and noise-reducing brake disc, where the vibration-damping and noise-reducing brake disc includes an intermediate disc having an outer side and a braking ring which surrounds the outer side of the intermediate disc. Two opposite surfaces of the braking ring are frictional surfaces provided with at least one laser scanning strip, where the laser scanning strip is obtained or formed by laser quenching and hardening treatments of the two frictional surfaces by a laser machine, for changing the physical and mechanical properties of the braking ring, such as the surface and inside hardness, residual stress distribution on the frictional surfaces, and the inside micro-structures of the braking ring, so as to suppress the generation of frictional vibration and noise during braking operations. The vibration-damping and noise-reducing brake disc of the present invention has stable coefficients of friction in braking operations, therefore, the occurrence of frictional noise and vibrations of the brake disc can be reduced, and the operational performance of the vehicle with such brake discs can be improved.

IPC Classes  ?

• F16D 65/12 - DiscsDrums for disc brakes
• B23K 26/352 - Working by laser beam, e.g. welding, cutting or boring for surface treatment
• C21D 1/09 - Surface hardening by direct application of electrical or wave energySurface hardening by particle radiation
• C21D 1/62 - Quenching devices
• F16D 65/00 - Parts or details of brakes
• F16D 65/02 - Braking membersMounting thereof

Abstract

Provided is a serial-parallel excitation DC motor driving device (100), comprising: a serial-parallel excitation DC motor (10); a DC power supply (30); and chopper (20), wherein, the chopper (20) has m chopper units (21), the control signal comprises m unit control signals corresponding to m chopper units (21) respectively and formed according to a predetermined phase shift rule, each unit control signal comprises w switch control signals corresponding to the w switch control terminals in the corresponding chopper unit (21), m first power output terminals (2211) of all the chopper units (21) and m second power output terminals (2212) of all the chopper units (21) correspondingly form m pairs of power output terminals (221) respectively, the m pairs of external connection terminals (151) of the series-parallel excitation DC motor (10) are connected in one-to-one correspondence with the m pairs of power output terminals (221), m is a positive integer not less than 2, and w is 1, 2, or 4.

IPC Classes  ?

• H02P 7/298 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature and field supplies

Abstract

A series-excitation direct-current electric motor driving apparatus (100) and an electric device. The series-excitation direct-current electric motor driving apparatus (100) comprises: a series-excitation direct-current electric motor (10); a direct-current power source (30); and a chopper (20), wherein the chopper (20) has m chopper units (21); a control signal includes m unit control signals which respectively correspond to the m chopper units (21) and are formed according to a predetermined phase stagger rule; each of the unit control signals includes w switch control signals corresponding to w switch control ends of the corresponding chopper units (21); m first power source output ends (2211) of all the chopper units (21) and m second power source output ends (2212) of all the chopper units (21) respectively and correspondingly form m pairs of power source output terminals (221); and m pairs of external wiring terminals (151, 152, 153) of the series-excitation direct-current electric motor are connected to m pairs of power source output terminals (221, 222, 223) in one-to-one correspondence, wherein m is a positive integer not less than 2, and w is 1, 2 or 4.

IPC Classes  ?

• H02P 7/298 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature and field supplies

Abstract

A parallel excitation DC motor driving device and electric equipment. Wherein the parallel excitation DC motor driving device (100) comprises: a parallel excitation DC motor (10); a DC power supply (30); and a chopper (20), which converts a constant voltage into a variable voltage on the basis of a control signal and provides it to the parallel excitation DC motor, wherein, the chopper is provided with m chapping units (21), the control signal contains m unit control signals respectively corresponding to m chopping units and formed according to a predetermined phase staggering rule, each unit control signal comprises w switch control signals corresponding to w switch control terminals (2110) in the corresponding chopping unit, m first power supply output terminals (2211) of all chopping units and m second power supply output terminals (2212) of all chopping units respectively form corresponding m pairs of power supply output terminals (221), m pairs of external wiring terminals (151) of the parallel excitation DC motor and m pairs of power supply output terminals are connected in one-to-one correspondence, m is a positive integer not less than 2, and w is 1, 2 or 4.

IPC Classes  ?

• H02P 7/292 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC

Abstract

The present invention provides a parallel-series excited direct current motor driving device and an electric apparatus. The parallel-series excited direct current motor driving device provided by the present invention comprises a parallel-series excited direct current motor, a direct current power source, and a chopper, wherein the chopper comprises m chopping units; a control signal comprises m unit control signals that respectively correspond to the m chopping units and are formed according to a predetermined phase shifting rule; each unit control signal comprises w switch control signals corresponding to w switch control ends in the corresponding chopping unit; the m first power output ends of all the chopping units and the m second power output ends of all the chopping units respectively correspondingly form m pairs of power output terminals; the m pairs of external wiring terminals of the parallel-series excited direct current motor are connected with the m pairs of power output terminals in a one-to-one correspondence manner; m is a positive integer that is not less than 2, and w is 1, 2, or 4.

IPC Classes  ?

• H02P 7/06 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current
• H02K 23/10 - DC commutator motors or generators having mechanical commutatorUniversal AC/DC commutator motors characterised by arrangement for exciting having compound connection of excitation windings

Abstract

A separately excited direct-current motor driving device (100) and electric equipment. The separately excited direct-current motor driving device (100) comprises: a separately excited direct-current motor (10); a direct-current power supply; an armature chopper (20, 20a, 20b); and an excitation chopper (60), wherein the armature chopper (20) has m armature chopper units (21, 21a, 21b), each of which has a pair of armature power supply output terminals (221, 222, 223, 221a, 222a, 223a, 221b, 222b, 223b) and w armature switch control ends (2110, 2110a, 2120a, 21110b, 21120b, 21210b, 21220b), the excitation chopper (60) has n excitation chopper units (61), each of which has a pair of excitation power supply output terminals (621, 622, 623), and the separately excited direct-current motor (10) has m pairs of armature external wiring terminals (151, 152, 153) and n pairs of excitation external wiring terminals (161, 162, 163), the m pairs of armature external wiring terminals (151, 152, 153) being connected in one-to-one correspondence to the m armature power supply output terminals (221, 222, 223, 221a, 222a, 223a, 221b, 222b, 223b), the n pairs of excitation external wiring terminals (161, 162, 163) being connected in one-to-one correspondence to the n pairs of excitation power supply output terminals (621, 622, 623), m being a positive integer not less than 2, n being a positive integer not less than 2, and w being 1, 2, or 4.

IPC Classes  ?

• H02P 7/298 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature and field supplies

Abstract

A permanent magnet direct-current motor driving apparatus and electric equipment, comprising: a permanent magnet direct-current motor (10); a direct-current power supply (30); and a wave truncator (1-20). The wave truncator (1-20) is provided with m wave truncating units (1-21). Each wave truncating unit (1-21) is provided with a first power supply output end (1-2211) and a second power supply output end (1-2212). The m first power supply output ends (1-2211) of all of the wave truncating units and the m second power supply output ends (1-2212) of all of the wave truncating units respectively and correspondingly form m pairs of power supply output terminals (1-221). Output currents of the m pairs of power supply output terminals (1-221) contain current ripples. The permanent magnet direct-current motor (10) comprises: a housing (11); m pairs of electric brushes (13); a stator (12); a rotor (14), and m pairs of external wiring terminals (151), the m pairs of external wiring terminals (151) corresponding one-to-one to the m pairs of power supply output terminals (1-221), and m being an integer no less than 2.

IPC Classes  ?

• H02P 7/285 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
• H02P 7/292 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC
• H02P 7/28 - Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices

Abstract

Provided in the present invention is a direct current motor, comprising a housing; m pairs of brushes fixed inside the housing; a stator arranged inside the housing, containing m pairs of main magnetic poles corresponding to the m pairs of brushes and containing n excitation winding portions; and a rotor arranged inside the stator. The direct current motor has such features as: each pair of main magnetic poles contains an S-polarity main magnetic pole and an N-polarity main magnetic pole, and the polarities of two adjacent main magnetic poles are different; the positions of two brushes in each pair of brushes are adjacent, and each pair of brushes contains an S-polarity corresponding brush corresponding to the S-polarity main magnetic pole and an N-polarity corresponding brush corresponding to the N-polarity main magnetic pole; and each excitation winding portion contains m excitation winding units, the m excitation winding units respectively correspond to the m pairs of main magnetic poles, and each excitation winding unit is formed by respectively manufacturing excitation coils on a corresponding pair of main magnetic poles by means of an insulating conductor strip composed of a metal line wrapped with an insulating layer, with m being a positive integer not less than 2, and n being 1 or 2.

IPC Classes  ?

• H02K 23/04 - DC commutator motors or generators having mechanical commutatorUniversal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation

Abstract

The present invention provides a direct current motor, comprising: a housing; m pairs of electric brushes, fixed inside the housing; a stator, provided inside the housing, comprising m pairs of main magnetic poles corresponding to the m pairs of electric brushes, and comprising n excitation winding portions; and a rotor, provided inside the stator and comprising multiple armature windings coupled to one another in a predetermined coupling manner. The motor has the followings characteristics: each pair of main magnetic poles comprises an S-polarity main magnetic pole and an N-polarity main magnetic pole; each pair of electric brushes comprises an S-pole corresponding electric brush corresponding to the S-polarity main magnetic pole and an N-pole corresponding electric brush corresponding to the N-polarity main magnetic pole; the excitation winding portions comprise k excitation winding units, and each excitation winding unit is formed by respectively manufacturing an excitation coil on the m pairs of main magnetic poles by means of an insulation conductor strip consisting of a metal wire wrapped by an insulating layer; m is a positive integer not less than 2, n is 1 or 2, and k is a positive integer not less than 2.

IPC Classes  ?

• H02K 23/02 - DC commutator motors or generators having mechanical commutatorUniversal AC/DC commutator motors characterised by arrangement for exciting