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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 78. Отображено 78.
13-04-2017 дата публикации

MICROFLUIDIC SYSTEM AND METHOD OF CONTROLLING PARTICLES BASED ON ARTIFICIALLY STRUCTURED ACOUSTIC FIELD

Номер: WO2017059604A1
Принадлежит:

Disclosed is a microfluidic system based on an artificially structured acoustic field, comprising a microcavity and a ultrasonic emission device, wherein the microcavity is used to accommodate a solution containing particles, the ultrasonic emission device is used to emit ultrasound, and characterized in further comprising a phononic crystal plate placed in the microcavity, wherein the phononic crystal plate has an artificial cycle structure, and is used to modulate the acoustic field so as to control the particles. Also disclosed is a method of controlling microfluid particles based on an artificially structured acoustic field. In the particular embodiments, since a microcavity, an ultrasonic emission device and a phononic crystal plate are comprised, the ultrasonic emission device is used to emit ultrasound, and the phononic crystal plate has an artificial cycle structure, and is used to modulate the acoustic field so as to control the particles. The method provides a new means for drug ...

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08-08-2023 дата публикации

Multi-parameter energy efficiency monitoring terminal based on tunnel magnetoresistive chip and energy efficiency evaluation method

Номер: CN116559514A
Принадлежит:

The invention discloses a multi-parameter energy efficiency monitoring terminal based on a tunnel magnetoresistive chip and an energy efficiency evaluation method, and the monitoring terminal comprises a signal collection module which is used for receiving a measurement current through a confluence/drainage structure, can convert the form of the measurement current, enables the measurement current to pass through a circuit protection structure, and judges whether an overcurrent occurs or not; inputting the measurement current into a magnetic resistance structure to perform conversion between a magnetic signal and a circuit signal; the measuring voltage is received through the voltage wire inlet end, and the measuring voltage and the voltage coil form a voltage input signal through the circuit protection structure; the processing circuit module is used for performing amplification, filtering, compensation and AD conversion on the signals acquired by the signal acquisition module; and the ...

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06-07-2016 дата публикации

Portable intelligent PFT appearance

Номер: CN0205359478U
Принадлежит:

... 本实用新型公开了一种便携式智能肺功能仪,其包括外壳、电路板和手机端,所述外壳包括壳体以及设置在壳体上的咬嘴和气流导管,所述电路板上设有蓝牙模块、传感器、传感电路、充电及电源模块、蜂鸣器和处理器,电路板还连接有显示屏和开关,所述气流导管一端连接咬嘴,另一端连接传感器,传感器通过传感电路与处理器连接,蓝牙模块与处理器连接,所述蓝牙模块还与手机端连接。传感器采集流量信号,然后发送到处理器。本方案使用了MEMS流量传感器,不需要叶轮或涡轮的辅助,减小了体积并提高了检测精度,便于携带。借助于蓝牙模块,处理器可以与手机端进行通信,将检测结果向外发送。本方案适用于家庭、诊所等场所。 ...

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18-08-2023 дата публикации

Bendable thoracoscope suite with straight working channel

Номер: CN116602603A
Принадлежит:

The invention relates to a bendable thoracoscope suite with a straight working channel, belongs to the technical field of thoracoscopes, and solves the problem that the biopsy efficiency of an existing internal medicine thoracoscope still cannot meet actual clinical requirements. The straight working channel bendable hard thoracoscope suite comprises a pair of hard biopsy forceps and a straight working channel bendable thoracoscope; the hard biopsy forceps are provided with a forceps head, an elastic guide rod section and a hard guide rod section, and the forceps head is connected to the first end of the hard guide rod section through the elastic guide rod section. An endoscope tube of the thoracoscope comprises a hard tube section and a hose section, and the rear end of the hose section is connected to the front end of the hard tube section. Wherein the tong head, the elastic guide rod section and the hard guide rod section are movably installed in the inner diameter pipe, the elastic ...

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04-10-2018 дата публикации

TIME REVERSAL TECHNIQUE-BASED SYSTEM AND METHOD FOR MANIPULATING PARTICLES

Номер: WO2018176526A1
Принадлежит:

A time reversal technique-based system and method for manipulating particles, the goal being the implementation of arbitrary path manipulation with respect to particles in an inhomogeneous medium. The time reversal technique-based system for manipulating particles comprises: array probes (101a-d), a signal reception and transmission control device (102), and a host machine (103), the array probes (101a-d) being communicatively connected to the signal reception and transmission control device (102), and the signal reception and transmission control device (102) being communicatively connected to the host machine (103). Applications are in the fields such as in vivo site-specific medicament administration and reproductive medicine, and high practical value is provided.

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03-05-2018 дата публикации

OPTIMIZATION CONTROL METHOD FOR RUNNING INTERVAL OF EJECTOR

Номер: WO2018077048A1
Принадлежит:

An optimization control method for running interval of an ejector, comprising the following steps: approximating the relation between primary flow pressure of an ejector and critical back pressure to a directly proportional linear relation, and determining a proportionality coefficient K* at a critical point of the ejector according to an optimal primary flow pressure value; dividing a working interval of the ejector into three parts according to the proportionality coefficient K* and a proportionality coefficient Ks; determining a working state of the ejector according to the working interval where the proportionality coefficient K of the ejector is located during practical work, and allowing the ejector to work at a stable running state by means of adjusting a pressure occurrence value.

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21-04-2023 дата публикации

Load sudden change identification method and apparatus, and electronic device

Номер: CN115995817A
Принадлежит:

The invention discloses a load sudden change identification method and apparatus, and an electronic device. The method comprises the following steps: acquiring a photovoltaic power generation power variable quantity corresponding to a photovoltaic power generation system of a building, a wind power generation power variable quantity corresponding to a wind power generation system, a charging pile power variable quantity and a room power variable quantity in a preset time period; determining a reverse load of the building in a preset time period based on the photovoltaic power generation power variation and the wind power generation power variation; based on the charging pile power variation and the room power variation, determining a forward load of the building in a preset time period; based on the reverse load and the forward load, determining the comprehensive variable quantity of the building load; and determining a load sudden change identification result of the building according ...

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13-06-2013 дата публикации

METHOD FOR PREPARING BIS(2,4,4-TRIMETHYL PENTYL) PHOSPHINIC ACID

Номер: WO2013083047A1
Принадлежит:

Provided in the present invention is a method for preparing bis(2,4,4-trimethyl pentyl) phosphinic acid: mixing sodium hypophosphite with diisobutylene; adding photoinitiator acetone while heating; reacting for 8 to 20h using ultraviolet light for irradiation; acquiring a crude product; and, when the crude product is alkaline-washed, acidified, dehydrated, and negative pressure distilled, acquiring a bis(2,4,4-trimethyl pentyl) phosphinic acid liquid product. The method of the present invention is conducted at a low temperature and atmospheric pressure, is safe, simple, and economic, and has great selectivity and reduced pollution.

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02-11-2017 дата публикации

IN-VIVO TARGETED DRUG ADMINISTRATION DEVICE AND OPERATING METHOD

Номер: WO2017185695A1
Принадлежит:

An in-vivo targeted drug administration device and a operating method. The device comprises a stent-type artificial acoustic structure (04), a stent-type artificial acoustic structure in-vivo delivery device (06), and an ultrasonic electronic device (02), wherein the stent-type artificial acoustic structure in-vivo delivery device (06) is used for delivering the stent-type artificial acoustic structure (04) into a blood vessel of a target lesion, and the stent-type artificial acoustic structure (04) is dilated and attached to the inner wall of the blood vessel; the ultrasonic electronic device (02) is used for transmitting ultrasonic waves in vitro to stimulate the stent-type artificial acoustic structure (04) to generate a local strong field on the surface thereof; the stent-type artificial acoustic structure (04) is preinstalled in the stent-type artificial acoustic structure in-vivo delivery device (06) and used for gathering drug particles injected into the blood vessel to the inner ...

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06-06-2023 дата публикации

Preparation method of p-hydroxybenzyl methyl ether

Номер: CN116217350A
Принадлежит:

The invention belongs to the technical field of preparation of organic matters. The invention provides a preparation method of p-hydroxybenzyl methyl ether, which comprises the following steps: reacting p-hydroxybenzyl alcohol, epigallocatechin gallate and methanol under the catalysis of trifluoroacetic acid to obtain a crude sample; carrying out gradient elution on the crude sample to obtain a fraction Fr1 and a fraction Fr2; and carrying out isocratic elution on the fraction Fr1 to obtain p-hydroxybenzyl methyl ether. According to the method, p-hydroxybenzyl methyl ether is obtained from p-hydroxybenzyl alcohol and epigallocatechin gallate, the preparation efficiency of the method is high, and the yield of p-hydroxybenzyl methyl ether can reach 16.8%; and the method is simple, short in preparation period and low in cost, meets the requirements of environmental protection and safety, and is suitable for large-scale production.

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06-06-2023 дата публикации

Track supplementing method and device, computer equipment and medium

Номер: CN116228812A
Автор: XU MANQI, LYU XUTAO, WANG CHEN
Принадлежит:

The invention relates to the technical field of trajectory prediction, in particular to a trajectory supplementing method and device, computer equipment and a medium. According to the method, a to-be-supplemented track of a target pedestrian and a plurality of possible paths of the to-be-supplemented track are determined by acquiring a target track file of the target pedestrian, and pedestrians appearing on the plurality of possible paths within a preset time period are determined as track-related pedestrians of the target pedestrian. And according to the plurality of trajectory point locations of the target pedestrian and each trajectory-related pedestrian and the passing time of each trajectory point location, determining a supplementing path of the target pedestrian, and supplementing the target trajectory file of the target pedestrian according to the supplementing path, and the trajectory supplementing method improves the accuracy of target pedestrian trajectory supplementing.

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16-05-2023 дата публикации

Automatic barbell disc processing device

Номер: CN116118094A
Принадлежит:

The invention relates to the technical field of barbell disc machining, in particular to an automatic barbell disc machining device which comprises a machine table, and a fixed cross beam is fixed to the upper side of the machine table. The iron core injection molding and rubber coating mechanism is arranged at the position between the machine table and the fixed cross beam; the four edge processing mechanisms are circumferentially arranged on the upper side of the machine table; the iron core injection molding and rubber coating mechanism comprises a mold closing air cylinder installed on the upper side of the fixed cross beam, a driving shaft rotationally connected to the upper side of the machine table and located under the mold closing air cylinder, and a rubber storage tank arranged on the upper side of the machine table and located on one side edge. By means of the edge processing mechanism, rubber at the edge position of the barbell disc can be heated and melted, so that burrs and ...

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15-03-2018 дата публикации

ULTRASONIC NERVE REGULATION SYSTEM

Номер: WO2018045482A1
Принадлежит:

An ultrasonic nerve regulation system comprises a signal generator (100), a transducer (300), a microscope (400), a recording device (500), and a storage device (200). The storage device (200) is used for storing an object, the object being a nematode or a cell or a brain slice. The signal generator (100) is used for outputting a sine wave electrical signal. The transducer (300) is used for generating a wave signal according to the sine wave electrical signal. The recording device (500) is used for recording a behavior change of the object by means of the microscope (400), the object being exposed to the wave signal. A nerve is regulated by means of an ultrasound; the system does not need to be in contact with the nerve, and an electrode and a drug injection pump also do not need to be implanted; the ultrasonic nerve regulation system is a noninvasive nerve regulation means.

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26-06-2014 дата публикации

MONITORING RECORD MANAGEMENT METHOD AND DEVICE

Номер: WO2014094303A1
Автор: WANG, Chen
Принадлежит:

Provided is a monitoring record management technique, which is used for managing a monitoring record stored in a memory. The monitoring record is used for monitoring a data block in a storage, and by reading at least one monitoring parameter from each monitoring record of the memory, either merging or splitting a monitoring record, the monitoring parameter of which satisfies a threshold. Applying of the monitoring record management technique provided in the present invention can reduce the occupied memory or improve the accuracy of a monitoring record.

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21-07-2023 дата публикации

Grid denoising method and device based on adaptive feature preservation

Номер: CN116468632A
Принадлежит:

The invention provides a grid denoising method and device based on adaptive feature preservation. The method comprises the following steps: determining a feature region and a non-feature region in a triangular grid model based on a normal difference method; determining a first sub-neighborhood set corresponding to each feature vertex in the feature region, and obtaining a feature normal vector of each feature vertex after filtering processing; and updating vertex coordinates in the feature region based on the feature normal vector. According to the method, the difference between the filtered result and the original normal vector can be minimized while the grid model method vector is subjected to smooth correction, so that the loss of feature information is effectively reduced, and the precision and the visual effect of the grid model are improved.

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18-04-2023 дата публикации

Preparation method and application of miR-99b-5p overexpressed engineered mesenchymal stem cell source exosome

Номер: CN115975947A
Принадлежит:

The invention discloses a preparation method and application of miR-99b-5p overexpressed engineered mesenchymal stem cell source exosome, and the mesenchymal stem cell source exosome can carry miR-99b-5p to specifically home to a tumor site and target colorectal cancer cells so as to inhibit growth and metastasis of the colorectal cancer cells in vivo and in vitro. Therefore, the miR-99b-5p overexpressed engineered mesenchymal stem cell source exosome has the effect of inhibiting the malignant progression of the colorectal cancer. And a theoretical basis is provided for exploring a novel method for treating colorectal cancer by using the exosome as a natural nano carrier to load miRNA.

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30-06-2023 дата публикации

Grid map dynamic target removal method and system, electronic equipment and storage medium

Номер: CN116363323A
Принадлежит:

The invention provides a grid map dynamic target removal method and system, electronic equipment and a storage medium, laser SLAM scanning data is acquired, a grid map of a hash table is constructed based on the laser SLAM scanning data, then grids meeting requirements in the grid map are selected and marked as ground grids, and the ground grids are marked as ground grids. The method comprises the following steps: acquiring point clouds in a ground grid, constructing a ground square equation based on the point clouds in the ground grid, performing fitting to determine a standard plane, marking static points and dynamic points for the point clouds in the ground grid according to a marking rule, and finally, eliminating the dynamic points in the ground grid, retaining the static points and outputting a static map without the dynamic points. And meanwhile, according to the static points in the ground grids, the original point cloud information without the dynamic object point cloud is output ...

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11-06-2015 дата публикации

COLD AND HOT DATA IDENTIFICATION THRESHOLD CALCULATION METHOD, APPARATUS AND SYSTEM

Номер: WO2015081757A1
Автор: WANG, Chen, LIN, Yu
Принадлежит:

The present invention relates to a cold and hot data identification threshold calculation method, apparatus and system. The method comprises: transmitting a data block IO statistical information query command to each storage node; receiving IO statistical information sent by each storage node; performing an addition operation on IO count field values in a same count range in the IO statistical information received from each storage node, and generating an IO count statistical value corresponding to each count range; and according to a total capacity of a hot data storage medium in each storage node, a size of a data block and the IO count statistical value, obtaining a minimum IO count value in the count range corresponding to a minimum IO count statistical value in high IO count statistical values when the hot data storage medium is filled with data blocks corresponding to the high IO count statistical values, and using the minimum IO count value as a cold and hot data identification threshold ...

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12-03-2020 дата публикации

DISPLAY PANEL AND PREPARATION METHOD THEREFOR, AND DISPLAY APPARATUS

Номер: WO2020048190A1
Принадлежит:

A display panel and a preparation method therefor, and a display apparatus. The display panel comprises: a photosensitive sensor (101); a light-shielding layer (102) arranged at a sensing side of the photosensitive sensor (101), wherein the light-shielding layer (102) comprises at least one first opening (1021) and at least one second opening (1022), and the first opening (1021) overlaps the photosensitive sensor (101) in the direction perpendicular to a surface of a display panel and enables light passing through the first opening (1021) to irradiate the photosensitive sensor (101); and a light-processing film (1023) arranged in an area of the light-shielding layer (102) close to the second opening (1022) and away from at least part of a surface of the photosensitive sensor (101), wherein the light reflectivity of the light-processing film (1023) is less than the light reflectivity of the light-shielding layer (102). The light-processing film (1023) of the display panel can prevent incident ...

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28-07-2023 дата публикации

Quantitative calculation and feedback system for dangerous source of equipment in coal chemical industry park

Номер: CN116500941A
Принадлежит:

The invention discloses a coal chemical industry park equipment hazard source quantitative calculation and feedback system, which comprises a monitoring data acquisition module used for acquiring equipment operation state data and uploading the data to a comprehensive cloud processing module and an online monitoring adjustment module, the comprehensive cloud processing module is used for analyzing and processing equipment operation state data and uploading an analysis and processing result to the online monitoring and adjusting module, and the online monitoring and adjusting module feeds back the analysis and processing result to the monitoring data acquisition module for emergency regulation and control according to the analysis and processing result. According to the quantitative calculation and feedback system for the hazard source of the equipment in the coal chemical industry park, a high-precision novel sensor is adopted to accurately monitor various parameters in operation of the ...

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03-05-2018 дата публикации

EJECTOR CRITICAL OPERATING POINT ENTRAINMENT RATIO PREDICTION OPTIMIZATION METHOD

Номер: WO2018077047A1
Принадлежит:

Disclosed is an ejector critical operating point entrainment ratio prediction optimization method, comprising: approximating the relation between primary flow pressures of an ejector and critical back pressures into a proportional linear relation, constructing a primary flow pressure optimization model; producing the corresponding optimal primary flow pressure value of the ejector on the basis of a critical back pressure value; dividing a work range of the ejector into three parts on the basis of scale factor K* and scale factor Ks; determining the optimal work range of the ejector; introducing an exponential function comprising the first flow pressures and the critical back pressures for predicting the optimal entrainment ratio; determining the optimal entrainment ratio value corresponding to the optimal primary pressure value; and at the same time determining the optimal range of entrainment ratios for the ejector on the basis of scale factor K* and of scale factor Ks. The beneficial ...

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29-08-2023 дата публикации

Differential wheeled robot robust control method based on variable gain ESO

Номер: CN116661310A
Принадлежит:

The invention provides a differential wheeled robot robust control method based on variable gain ESO, and relates to the technical field of robot control. The method comprises the following steps: constructing a robot model, wherein the robot model comprises a kinematics model and a dynamics model; according to the robot model, a corresponding trajectory tracking controller is constructed, and the trajectory tracking controller comprises a feedback controller and a kinematics controller based on variable gain filtering ESO; according to expected parameters and control parameters obtained through calculation of the trajectory tracking controller, displacement control is conducted on the robot, the expected parameters comprise the expected position and the expected angular speed, the control parameters comprise the wheel speed control parameter and feed-forward compensation, and the feed-forward compensation comprises differential feed-forward and disturbance feed-forward. In this way, the ...

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07-12-2017 дата публикации

ZERO-DISCHARGE TECHNIQUE FOR SEPARATING SLUDGE AND SALT FROM DESULFURIZATION WASTEWATER

Номер: WO2017206608A1
Принадлежит:

A zero-discharge technique for separating sludge and salt from desulfurization wastewater. The technique comprises a pre-treatment step, a membrane treatment step, and an evaporative crystallization step, in that order. In the pre-treatment step, the desulfurization wastewater enters a raw water tank where an aeration fan injects compressed air into the raw water tank, and the desulfurization wastewater is then raised, by means of a raw water pump, to stage 1 reaction and purification, and undergoes three stages of softening and purification before entering a purified water tank, wherein one part of water from the purified water tank is supplied to a membrane treatment system, while the other half is supplied to a chemical adding system. In the membrane treatment step, incoming water first undergoes ultrafiltration before entering a pH modifying tank, and is then pumped to a nanofiltration membrane separation system and a reverse osmosis membrane separation system. In the evaporative crystallization ...

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06-06-2023 дата публикации

Indoor positioning method and device, computer equipment and storage medium

Номер: CN116233755A
Принадлежит:

The invention relates to the technical field of indoor positioning, in particular to an indoor positioning method and device, computer equipment and a storage medium, and the indoor positioning method comprises the steps: obtaining a motion track of a positioning target, and obtaining a first positioning result of the positioning target according to the motion track; acquiring a Bluetooth beacon of the positioning target, and obtaining a second positioning result of the positioning target according to the Bluetooth beacon; and fusing the first positioning result and the second positioning result to obtain a final positioning result of the positioning target. According to the technical scheme provided by the invention, the problem of low positioning result accuracy of an indoor positioning method in the prior art can be solved.

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01-08-2023 дата публикации

Flexible patch dry electrode and preparation method thereof

Номер: CN116509405A
Принадлежит:

The invention discloses a preparation method of a flexible patch dry electrode, and the method comprises the following steps: uniformly mixing polydimethylsiloxane (PDMS) and a carbon material, carrying out ultrasonic treatment, carrying out spin coating on a substrate to obtain an electrode, drying the electrode, punching the electrode, injecting conductive silver paste into the hole, and carrying out baking and curing to obtain the flexible patch dry electrode, the carbon material accounts for 4-8wt% of the total mass of the carbon material and the polydimethylsiloxane, and the carbon material is a mixture of graphene oxide (GO) and carbon nanotubes (CNT). According to the invention, polydimethylsiloxane is adopted as a flexible substrate material, and the prepared flexible patch dry electrode has good flexibility and does not cause discomfort to a testee; the conductive net made of the carbon material is combined with the conductive silver paste, so that the electric signal conduction ...

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18-04-2023 дата публикации

Scanning projection system and scanning projection method for projecting color difference image in real time

Номер: CN115979177A
Принадлежит:

The invention relates to a scanning projection system and a scanning projection method for projecting a color difference graph in real time, and the system comprises two cameras, an image projection assembly, and an acquisition module, a comparison module, a dimension reduction module and a projection module which are electrically connected in sequence. The method comprises the following steps: measuring model data of a measured object, comparing the measuring model data with design model data of the measured object to obtain chromatic aberration model data used for representing errors of the measuring model data and the design model data, then obtaining a chromatic aberration picture according to the chromatic aberration model data, and finally projecting the chromatic aberration picture to the measured object based on an image projection assembly. Compared with the prior art, the method has the advantages that the chromatic aberration picture reflecting the error can be projected on the ...

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16-05-2023 дата публикации

File quality evaluation method and device, electronic equipment and storage medium

Номер: CN116129149A
Автор: XU MANQI, LYU XUTAO, WANG CHEN
Принадлежит:

The embodiment of the invention provides an archive quality evaluation method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a target archive which comprises a target face image set and a target human body image set associated with the target face image set; calculating the human body feature similarity of the target human body image set, and calculating the face feature similarity of the target human body image set; if the average similarity of the human body feature similarities and the average similarity of the human face feature similarities both meet a preset similarity threshold condition, determining the archive quality grade of the target archive as a first archive quality grade; and if the average similarity of the human body feature similarities and the average similarity of the human face feature similarities do not meet a preset similarity threshold condition, respectively calculating a trajectory score and residence time ...

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25-04-2023 дата публикации

Method for detecting residual quantity of ethanol and acetonitrile in hydro-optical needle product

Номер: CN116008453A
Принадлежит:

The invention discloses a method for detecting residual quantity of ethanol and acetonitrile in a hydro-optical needle product. The specific detection process comprises the following steps: step 1, uniformly mixing the hydro-optical needle product with an extracting agent, standing, and removing precipitate to obtain supernate containing ethanol and acetonitrile; step 2, detecting the supernate through GC-FID (Gas Chromatography-Flame Ionization Detector) to obtain the residual quantity of ethanol and acetonitrile in the hydro-optical needle product; wherein the hydro-optical needle product is a macromolecular substance obtained by coupling sodium hyaluronate and a polyethylene glycol derivative. According to the method disclosed by the invention, acetone is adopted as an extracting agent to carry out pretreatment on the hydro-optical needle product, so that the problem that a sample injection needle is blocked during GC sample injection due to the viscosity of the hydro-optical needle ...

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11-08-2023 дата публикации

Visual mark point extraction method and device, equipment and storage medium

Номер: CN116580096A
Принадлежит:

The invention provides a visual mark point extraction method and device, equipment and a storage medium, and relates to the technical field of image processing. The method comprises the following steps: sequentially receiving multiple groups of pixel data in an image for a target object; for each group of received pixel data, acquiring pixel points belonging to at least one connected domain contour in each group of pixel data from each group of pixel data; if the pixel points of the target connected domain contour in the at least one connected domain contour meet a preset ending condition, calculating the coordinate position of the visual mark point corresponding to the target connected domain contour according to all the pixel points of the target connected domain contour; and continuing to receive other pixel data in the image of the target object until the coordinate positions of other visual mark points are calculated. Therefore, the extraction time of the mark points is shortened, ...

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29-06-2016 дата публикации

Surface of water standing wave demonstration appearance

Номер: CN0205354472U
Принадлежит:

... 本实用新型涉及一种水面驻波演示仪,其信号发生器的输出接口与功率放大器的输入接口相连,功率放大器的输出接口与喇叭的输入接口相连,喇叭设在仪器架上的固定卡槽内,支撑架设在喇叭的正上方,金属模具固定在支撑架上方,金属模具上制有样品池,样品池的内表面涂有聚四氟乙烯。本实用新型提出的一种水面驻波演示仪分别实现了一维环形驻波和水面克拉尼图形的演示,不仅能体现驻波的波节,还能观测到驻波的波形和波腹;同时该实验演示仪能通过其振动频率的改变得到具有不同表面张力系数的溶液的驻波数,从而进一步探究表面张力系数和波速的关系。本实用新型设计新颖,结构简单,所需费用低,动感强烈,演示效果直观、明显,方便操作,可控性强。 ...

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02-05-2023 дата публикации

Power grid dispatching optimization method and device and nonvolatile storage medium

Номер: CN116054270A
Принадлежит:

The invention discloses a power grid dispatching optimization method and device and a nonvolatile storage medium. The method comprises the steps that a multi-target optimization model of a power grid system in a target area is acquired, and the multi-target optimization model is used for representing the day-ahead scheduling optimization direction of the power grid system about the operation cost and the network loss; the multi-objective optimization model is solved based on an improved particle swarm optimization algorithm, a day-ahead scheduling optimization result of the power grid system is obtained, and the improved particle swarm optimization algorithm is a particle swarm optimization algorithm adopting a dynamic inertia weight and a dynamic learning factor; performing intra-day rolling optimization on the power grid system based on the day-ahead scheduling optimization result to obtain a control instruction, the control instruction being used for regulating and controlling the power ...

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27-06-2023 дата публикации

Information processing method and device and electronic equipment

Номер: CN116340640A
Автор: WANG CHEN, WANG MENG
Принадлежит:

The invention discloses an information processing method and apparatus, and an electronic device. The information processing method comprises the steps of obtaining to-be-processed target dialogue information; determining content features of dialogue content corresponding to the target dialogue information and emotion features of user emotion in a corresponding dialogue time period; inputting the determined content features and emotion features into a pre-constructed first processing model to obtain a first processing result which is output by the first processing model and corresponds to the target dialogue information; wherein the first processing result comprises indication information used for indicating to adopt at least two candidate recommended actions in a candidate recommended action set, and user emotion information corresponding to the emotion characteristics in the dialogue time period, so as to determine a target recommended action; different candidate recommendation actions ...

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08-08-2023 дата публикации

Respiratory rehabilitation prescription approval method, device and equipment and storage medium

Номер: CN116564463A
Принадлежит:

The invention discloses a respiratory rehabilitation prescription approval method, device and equipment and a storage medium, and the method comprises the steps: obtaining a respiratory rehabilitation prescription of a patient, and generating an evaluation scale corresponding to a disease type according to the disease type corresponding to the respiratory rehabilitation prescription; obtaining a first score corresponding to the measurement evaluation item; obtaining a second score corresponding to the input evaluation item; performing integrated calculation on the first score and the second score to obtain the rehabilitation condition of the patient, thereby generating a corresponding reference rehabilitation prescription; and respectively performing risk assessment calculation on the reference rehabilitation prescription and the respiratory rehabilitation prescription, thereby generating and feeding back an approval failure signal to enable a doctor to manually assess the respiratory rehabilitation ...

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07-04-2023 дата публикации

Power distribution network source network load storage collaborative optimization planning method and device considering carbon emission

Номер: CN115940213A
Принадлежит:

The invention relates to a power distribution network source network load storage collaborative optimization planning method considering carbon emission, and the method comprises the following steps: obtaining a distributed power distribution network source network load storage collaborative planning model considering carbon emission by considering the minimization of unit power generation cost, investment cost, operation and maintenance cost and carbon emission cost; the constraint conditions of the model comprise a flexible load constraint and a carbon capture equipment constraint; solving the model based on a discrete binary particle swarm algorithm to obtain a power distribution network source network load storage planning scheme; aiming at the problems of scene diversification, analysis dimension comprehensiveness and the like in a novel power distribution network construction process, a distributed power distribution network source network load storage collaborative optimization planning ...

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05-05-2023 дата публикации

Archive filing method and related equipment

Номер: CN116069963A
Автор: XU MANQI, LYU XUTAO, WANG CHEN
Принадлежит:

The embodiment of the invention provides an archive filing method and related equipment, and the method comprises the steps: screening out an abnormal human body archive set from to-be-processed archives, and enabling the abnormal human body archive set to comprise a plurality of abnormal human body archives; based on the face file image and the human body file image in the abnormal human body file set, splitting the plurality of abnormal human body files to obtain split human body files; and on the basis of the split human body archive, other human body archives which do not belong to the split human body archive in the archive to be processed are archived again, and an updated archiving result is obtained. Therefore, the effectiveness of the archives is speculated through the human body information instead of the human face information, the influences of similar or side faces, mask wearing and the like can be avoided, the human body can provide richer auxiliary information, the number ...

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09-05-2023 дата публикации

Hole measurement method and device based on binocular stereoscopic vision, electronic equipment and medium

Номер: CN116091528A
Принадлежит:

The invention discloses a hole measurement method and device based on binocular stereo vision, electronic equipment and a medium, and the method comprises the steps: carrying out the data analysis of the parameters of a hole through an epipolar ray image, thereby determining the type and size of the hole, avoiding the contact measurement, and obtaining the epipolar ray image of the hole in a short time, thereby improving the measurement precision, and improving the measurement precision. Therefore, the hole measuring efficiency can be effectively improved; on the other hand, the binocular stereoscopic vision technology has low illumination requirements, so that the epipolar ray image of the hole obtained based on the binocular stereoscopic vision technology is more reliable, and the precision of the measurement result of the hole can be better ensured; furthermore, the coordinates of the three-dimensional edge points are fitted based on the preset target type of holes, so that the digitization ...

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18-04-2023 дата публикации

Gate device and method for rapidly detecting trace explosives

Номер: CN115985005A
Принадлежит:

The invention relates to a gate device and method for rapidly detecting trace explosives. The gate device comprises a gate shell, and an explosive detection mechanism, a detection sampler, an enhanced sampler, a detection belt, an identity verification mechanism and a detection belt transmission mechanism which are assembled on the gate shell, a ticket sampling opening is formed in the gate shell, the detection sampler is located below the ticket sampling opening, and a gap for the detection belt to penetrate through is reserved between the detection sampler and the ticket sampling opening; the detection belt sequentially penetrates through the enhanced sampler, the gap and the explosive detection mechanism and is driven by the detection belt transmission mechanism to operate; wherein the enhanced sampler comprises an electrostatic mechanism for increasing static electricity to the detection belt or a solvent mechanism for forming a solvent film on the detection belt. A detected person ...

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30-06-2023 дата публикации

Application of tripeptide-1 and/or tripeptide in preparation of medicine for preventing and treating chronic obstructive pulmonary disease with skeletal muscle dysfunction

Номер: CN116350744A
Принадлежит:

The invention belongs to the technical field of biological medicines, and particularly relates to application of tripeptide-1 and/or tripeptide in preparation of a medicine for preventing and treating chronic obstructive pulmonary disease complicated with skeletal muscle dysfunction. The tripeptide-1 and the tripeptide can inhibit occurrence and development of chronic obstructive pulmonary disease complicated with skeletal muscle dysfunction by means of antagonizing oxidative stress reaction, regulating and controlling mitochondrial function of skeletal muscle cells, inhibiting muscle atrophy and the like, so that the chronic obstructive pulmonary disease complicated with skeletal muscle dysfunction is prevented and treated.

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07-04-2023 дата публикации

Preparation method and application of CuMnMgAl catalyst capable of synergistically removing NOx and toluene

Номер: CN115920921A
Принадлежит:

The invention discloses a preparation method and application of a CuMnMgAl catalyst capable of synergistically removing NOx and toluene, and belongs to the technical field of air pollution control. The preparation method of the catalyst comprises the following two steps: step 1, preparing a CuMnMgAl-like hydrotalcite precursor (CuMnMgAl-LDH) by taking a copper nitrate trihydrate solution, a magnesium nitrate hexahydrate solution, a manganese nitrate hexahydrate solution and an aluminum nitrate nonahydrate solution as raw materials, sodium hydroxide and sodium carbonate as precipitants and deionized water as a solvent and a detergent through the steps of solution preparation, hydrothermal treatment, suction filtration, washing and drying; and 2, roasting the obtained CuMnMgAl hydrotalcite-like precursor in an air atmosphere at the temperature of 350 to 500 DEG C, so as to obtain the CuMnMgAl composite oxide catalyst (CuMnMgAl-LDO) with excellent performance. The catalyst disclosed by the ...

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13-06-2023 дата публикации

Photovoltaic openable capacity calculation method based on time sequence operation simulation

Номер: CN116260180A
Принадлежит:

The invention provides a photovoltaic openable capacity calculation method based on time sequence operation simulation, and the method comprises the steps: constructing the contents of a photovoltaic access position access capacity combination model and a time sequence simulation optimization operation model, and carrying out the linearization and cone conversion according to a second-order cone programming principle, and converting the original non-convex problem model into a mixed integer second-order cone programming model. The method has the beneficial effects that the method is suitable for a high-proportion photovoltaic access scene, the equipment safety and the system safety can be comprehensively planned, the distributed power supply and the centralized power supply can be comprehensively planned, the power grid bearing and absorption can be comprehensively planned, the calculation result can ensure the safe and stable operation of the power grid, and the healthy and orderly development ...

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04-08-2023 дата публикации

3, 4-alkoxy substituted phenethyl lactam compound as well as preparation method and application thereof

Номер: CN116535350A
Принадлежит:

The invention belongs to the technical field of medicines, and relates to a 3, 4-alkoxy substituted phenethyl lactam compound as an enzyme inhibitor of phosphodiesterase, a preparation method of the 3, 4-alkoxy substituted phenethyl lactam compound and application of the 3, 4-alkoxy substituted phenethyl lactam compound in medicines. Specifically, the invention relates to a compound as shown in a general formula (I), a preparation method of the compound and application of the compound in drugs for preventing and/or treating phosphodiesterase-related diseases.

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02-05-2023 дата публикации

Aerosol collecting device and method capable of adjusting sampling particle size

Номер: CN116046484A
Принадлежит:

The invention relates to an aerosol collecting device and method capable of adjusting the sampling particle size, the aerosol collecting device capable of adjusting the sampling particle size comprises a collecting shell, a mounting shell, a sampling carrier and a flow pump, a part of the collecting shell is mounted in the mounting shell, an air inlet is formed in one end, located outside the mounting shell, of the collecting shell, and an air outlet is formed in the other end, located outside the mounting shell, of the collecting shell; hard side walls are hinged to the two opposite side walls of the end, located in the installation shell, of the collection shell correspondingly, and the two hard side walls are connected through two soft side walls and define a sample collection channel. Slit adjusting mechanisms are installed on the two hard side walls, the sampling carrier and the flow pump are both installed in the installation shell, the sampling carrier makes contact with the free ...

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06-07-2016 дата публикации

Suspending device

Номер: CN0205375200U
Принадлежит:

... 本实用新型涉及一种悬浮装置,包括主体外壳,所述主体外壳中设有电路控制板、浮力调节装置、转轴和压力传感器,主体外壳底部装有波能信息采集与转化装置,所述浮力调节装置、转轴、压力传感器以及波能信息采集与转化装置分别与电路控制板电连接,转轴上缠绕有控制绳,控制绳一端连接在转轴处,控制绳的另一端穿过所述压力传感器连接在砂袋的边缘,通过上述结构,可以控制调整水下空袋体的位置,使袋体不发生扭结现象;同时,可以避免冲砂过饱、打爆砂袋材料等情况发生,在龙口合拢工程中,提高施工工程的效率性和安全性。 ...

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04-04-2023 дата публикации

Image connected domain connection method and device

Номер: CN115908473A
Принадлежит:

The invention provides an image connected domain connection method and device, and relates to the technical field of image processing. The method comprises the following steps: determining a label number of a to-be-processed pixel point according to a binary pixel value of the to-be-processed pixel point in a to-be-processed binary image, a label number of a pixel point at a corresponding position of a previous row of the to-be-processed pixel point and a label number of a previous column of pixel points of a current row; according to the tag number of the to-be-processed pixel point, the tag number of the pixel point at the corresponding position of the previous row of the to-be-processed pixel point and the tag number of the pixel point of the previous column of the current row, carrying out tag number combination; and connecting a plurality of pixel points with the same tag number to generate a plurality of connected domains in the to-be-processed binarized image. Therefore, through ...

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30-05-2023 дата публикации

Overlapped ion gate

Номер: CN116190199A
Принадлежит:

The invention provides an overlapped ion gate, and relates to the technical field of ion gates. Comprising a first metal sheet and a second metal sheet which are oppositely arranged, an insulating spacer is arranged between the first metal sheet and the second metal sheet, the voltage control circuit is connected with the first metal sheet and the second metal sheet, and the input end of the voltage control circuit is connected with conductive ends used for connecting the first metal sheet and the second metal sheet with a power supply respectively; the two sides of the insulating spacer abut against the side walls of the first metal sheet and the second metal sheet respectively. The voltage in the first metal sheet and the second metal sheet is controlled through the voltage control circuit, the direction of an electric field formed between the first metal sheet and the second metal sheet is changed, the purpose of opening and closing the ion gate is achieved, the electric field for pushing ...

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13-06-2023 дата публикации

Data reading and writing method and device, computer equipment and storage medium

Номер: CN116257519A
Принадлежит:

The invention relates to the field of data management, in particular to a data reading and writing method and device, computer equipment and a storage medium, and aims to solve the performance and efficiency problems of data reading and writing. The method comprises the following steps: establishing an index of target data to obtain a target data index; in a shared memory, caching an index of target data according to the target data index to obtain a data index cache; and when a read operation is performed on the target data, the target data corresponding to the data index cache is obtained by reading the data index cache, so that a read operation result of the target data is returned.

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08-09-2017 дата публикации

Environment-friendly domestic garbage treatment machine

Номер: CN0107140356A
Автор: WANG CHEN
Принадлежит:

... 种环保家用垃圾处理机,属于节能环保机械领域。具体地说是采用太阳能发电供能,通过破碎轮将垃圾打碎压缩,液体垃圾排入下水道,固体垃圾经过压缩后存放。本发明整体占地面积小,操作简单,安全性高,环保节能,便于清理,卫生,处理后的固体垃圾便于打包,液体垃圾倒入下水道,避免了异味和蚊虫细菌的滋生。 ...

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06-07-2016 дата публикации

An intelligent aerosol medication monitor

Номер: CN0205360166U
Принадлежит:

... 本实用新型公开了一种智能气雾剂用药监测仪,包括底座和设置在底座内的计时计数装置,计时计数装置无线连接有手机;计时计数装置包括从上向下依次排布的卡环、单片机、电源、压盖和覆盖件,所述底座内壁上设置有防止卡环脱出的限位环,底座的内壁和卡环的外壁之间通过竖直方向的导轨滑动连接,卡环和单片机之间夹设复位弹簧,单片机上设置有触发按键,压盖和底座之间通过螺栓连接。本实用新型配合气雾剂药瓶使用,能够在哮喘患者按压喷药的同时记录喷药的次数和时间,并将喷药次数和时间信号无线传输至手机,便于掌握患者病情、发病规律和准确换药时机,为治疗提供统计数据。 ...

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25-04-2023 дата публикации

Cryoablation probe and surgical equipment for bronchial vagus nerve occlusion

Номер: CN115998408A
Принадлежит:

The invention belongs to the technical field of medical equipment, and particularly relates to a cryoablation probe and surgical equipment for bronchial vagus nerve occlusion, the cryoablation probe comprises a handle part, an extension part and a probe part, the probe part is connected with the handle part through the extension part, the probe part comprises a linear section and a curved section, and the linear section is connected with the curved section through the extension part. And the curve section is connected with the extension part through the straight section. The working part of the cryoablation probe is subjected to curve deformation, during clinical use, the working part can be better attached to the bronchus wall through the curve section, and the bronchus vagus nerve at the attached part is subjected to cryoablation. On the one hand, the ablation operation can be efficiently completed, on the other hand, ablation blocking can be selectively conducted on nerves on the trachea ...

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12-05-2023 дата публикации

Virtual object control method and device and electronic terminal

Номер: CN116099198A
Автор: WANG CHEN
Принадлежит:

The invention provides a virtual object control method and device and an electronic terminal, relates to the technical field of games, and solves the technical problem that the placement efficiency of models in a virtual scene by a user is relatively low. The method comprises the steps of determining a throwing direction corresponding to a fast throwing operation in response to the fast throwing operation for a first virtual object under the condition that a first action area and a second action area are overlapped; wherein the first action area is the action area, currently corresponding to the first virtual object, in the area, and the second action area is the action area, placed in the area, of the second virtual object; controlling the first virtual object to be placed in a target area; wherein the target area is an area which is in the throwing direction and is closest to the second acting area.

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23-06-2023 дата публикации

Floating bacteria counting method

Номер: CN116287098A
Принадлежит:

The invention relates to the technical field of planktonic bacteria counting, in particular to a planktonic bacteria counting method which comprises the following steps: sampling at a fixed flow rate in an actual environment; when the planktonic bacteria detector detects any aerosol particle, the particle size of any aerosol particle is determined according to the scattered light corresponding to any aerosol particle, the layer number of the flat plate to which the particle size belongs in the Anderson sampler is determined by looking up a table, and the fluorescence of any aerosol particle is detected at the same time; calculating the fluorescent light intensity/scattered light intensity ratio of any aerosol particle, and calculating the probability that any aerosol particle is the planktonic bacteria by using a probability calculation function corresponding to the range to which the particle size of any aerosol particle belongs until the sum of the probabilities that each aerosol particle ...

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27-06-2023 дата публикации

Preparation method and application of acanthosphere structured Mn3O4 catalyst with high specific surface area

Номер: CN116332236A
Принадлежит:

The invention discloses a preparation method of an acanthosphere-structured Mn3O4 catalyst with a high specific surface area and application of the acanthosphere-structured Mn3O4 catalyst in removal of volatile organic compounds (VOCs), and belongs to the technical field of air pollution control. According to the catalyst, potassium permanganate and manganese sulfate are used as raw materials, deionized water is used as a solvent, deionized water and absolute ethyl alcohol are used as detergents, and a manganese oxide precursor is prepared through the steps of solution preparation, magnetic stirring, suction filtration, washing and drying; and roasting the obtained precursor in a hydrogen atmosphere at 150-300 DEG C to obtain the Mn3O4 catalyst with excellent performance. The catalyst prepared by the method is used for a reaction for removing methylbenzene in volatile organic compounds (VOCs) through thermocatalytic oxidation, and results show that the catalyst has high specific surface ...

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23-06-2023 дата публикации

Application of detecting mutation condition of characteristic gene in preparation of venous thromboembolism risk detection product

Номер: CN116287204A
Принадлежит:

The invention provides application of detecting the mutation condition of a characteristic gene in preparation of a venous thromboembolism risk detection product. The characteristic gene comprises FABP2. Characteristic genes and SNP loci are obtained based on venous thromboembolism emission population genome data analysis; the FABP2 characteristic gene associated with VTE pathopoiesis based on multi-gene mutation characteristics is obtained through screening for the first time, a new development prospect is developed for obtaining and application of rare mutant genes associated with low crowd frequency pathopoiesis, and more possibilities and better technical support are provided for preparing venous thromboembolism risk detection products.

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18-07-2023 дата публикации

Tin coating device capable of preventing connector shell from deforming

Номер: CN116454703A
Принадлежит:

The invention discloses a tin coating device capable of preventing deformation of a connector shell, which comprises a device body, an upper pressing plate and a hand screw, and is characterized in that the device body is provided with a cavity for placing a connector, and the bottom of the cavity is provided with a through hole for a pin to be subjected to tin coating to pass through; the upper pressing plate is detachably installed on the device body through a hand screw and located at the top of the cavity so as to press a shell of the connector during tin coating. According to the device, heat received by a connector pin can be rapidly dissipated, meanwhile, a connector shell can be clamped, it is guaranteed that a plastic shell of a connector is not heated to deform in the tin coating process, and the device has certain universality and is suitable for popularization and application. The tin coating device can be used for tin coating of the series of electric connectors with different ...

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22-08-2023 дата публикации

Flexible load identification method and device

Номер: CN116632807A
Принадлежит:

The invention discloses a flexible load identification method and device. The method comprises the following steps: acquiring target load data corresponding to a plurality of electricity accounts in a target power grid in a first sampling time period; first classification processing is carried out on the target load data corresponding to the multiple power consumption accounts to obtain a first load classification result, the first load classification result comprises first class load data composed of rigid loads and second class load data composed of composite loads, and the composite loads comprise the rigid loads and the flexible loads; and based on the second type of load data, a K-nearest neighbor algorithm is adopted to obtain a flexible load identification result corresponding to the target power grid. According to the invention, the technical problem of poor regulation and control balance of the power distribution network caused by low user side flexible load identification accuracy ...

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25-08-2023 дата публикации

Three-dimensional grid model denoising method, device and equipment and storage medium

Номер: CN116645278A
Принадлежит:

The invention provides a three-dimensional network model denoising method and device, equipment and a storage medium, and relates to the technical field of computer graphics. The method comprises the following steps: acquiring grid data of a plurality of polygonal patches in a three-dimensional grid model to be denoised; according to the grid data of each polygonal surface patch and the neighborhood information of each polygonal surface patch, filtering the surface normal vector of each polygonal surface patch to obtain the filtered surface normal vector of each polygonal surface patch; according to the surface normal vector of each polygon surface patch after filtering, the vertex coordinate of each vertex in the grid data of each polygon surface patch and the neighborhood information of each vertex, determining the compensation parameter of each vertex in each polygon surface patch; and performing iterative updating on the vertex coordinates of the vertexes according to the compensation ...

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25-04-2023 дата публикации

Method and device for evaluating cardiopulmonary rehabilitation aerobic exercise intensity

Номер: CN115998284A
Принадлежит:

The invention discloses a cardiopulmonary rehabilitation aerobic exercise intensity assessment method and device, and the method comprises the steps: comparing a first index measurement value obtained through the forced vital capacity test of a patient with a first predicted index measurement value, and obtaining a first score value; comparing a second index measurement value obtained by the respiratory muscle force test of the patient with the second predicted index measurement value to obtain a second score value; obtaining a third score value based on the mileage obtained by the six-minute walking test of the patient; acquiring a body weight index of the patient, and obtaining a fourth score value based on the body weight index; integrating the first score value, the second score value, the third score value and the fourth score value to obtain a first comprehensive evaluation score value which is used for determining the cardiopulmonary rehabilitation aerobic exercise intensity of the ...

Подробнее
11-07-2023 дата публикации

Method for selecting and determining number of UPS (Uninterrupted Power Supply) storage batteries

Номер: CN116418076A
Принадлежит:

A method for selecting and determining the number of UPS storage batteries comprises the following steps of 1, charging and primarily selecting the number of the storage batteries within the maximum voltage limiting range of a system, 2, charging and primarily selecting the minimum discharging voltage within the minimum voltage limiting range of the system, and 3, determining the number n of the batteries based on the UPS voltage range and the minimum discharging voltage and the charging voltage of the batteries. According to the method, a window voltage method for selecting the number of UPS standby storage batteries is adopted, the maximum voltage of the system, the minimum voltage of the system and the minimum discharge voltage of a single battery are optimally combined through two times of comparison, and the optimal number of the batteries is selected within a certain window range, so that the most economical utilization of the capacity of the storage batteries is achieved.

Подробнее
06-06-2023 дата публикации

Support structure optimization design method for controlling metal additive manufacturing thermal stress

Номер: CN116227084A
Принадлежит:

The invention discloses a support structure optimization design method for controlling metal additive manufacturing thermal stress, which relates to the field of metal additive manufacturing, and comprises the following steps: defining a design domain and a non-design domain; initializing a design variable; converting a design variable into a physical variable through density filtering and projection; establishing an interpolation model of the physical variables and the overall structural rigidity; finite element simulation is conducted on the additive manufacturing layer-by-layer machining process of the overall structure to obtain thermal deformation of the overall structure; calculating the maximum thermal stress sigmapn of the structure, the volume fraction V of the supporting structure and the suspension angle constraint response G; calculating sensitivity; updating the design variables to solve the optimization model; judging whether convergence occurs or not; and post-processing ...

Подробнее
11-04-2023 дата публикации

Parameter calibration method and device, computer equipment and storage medium

Номер: CN115953483A
Принадлежит:

The invention relates to the technical field of computer vision, in particular to a parameter calibration method and device, computer equipment and a storage medium. According to the method, the calibration plate is deployed on the trolley, so that the multiple to-be-calibrated camera devices obtain video frame information corresponding to the same calibration plate, the pose of the calibration plate is determined according to the pose of the trolley, the poses of the to-be-calibrated camera devices are determined according to the pose of the calibration plate and the relative poses of the to-be-calibrated camera devices and the calibration plate, and meanwhile, the calibration plate is arranged on the trolley. According to the pose of the trolley, the pose of the ground, namely the ground parameters, can be obtained, so that the internal parameters of the to-be-calibrated camera device, the external parameters of the to-be-calibrated camera device and the ground parameters are automatically ...

Подробнее
22-08-2023 дата публикации

Game control method and device, equipment, storage medium and computer program product

Номер: CN116617652A
Автор: WANG CHEN
Принадлежит:

The invention provides a game control method and device, equipment, a storage medium and a computer program product. A graphical user interface is provided through a terminal device, a virtual scene and a target skill control are displayed in the graphical user interface, and the virtual scene comprises a target virtual character. The method comprises the steps of determining whether a touch point corresponding to a first trigger instruction keeps a target state in a monitoring area for preset time or not in response to the received first trigger instruction for a target skill control; in response to determining that the touch point keeps the target state in the monitoring area for a preset time, displaying a role identifier corresponding to a target virtual role at a target position corresponding to the touch point, the target virtual role being a virtual role determined in the virtual scene according to the target position; and in response to a received second trigger instruction for ...

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30-06-2023 дата публикации

Vagina micro-ecological evaluation model and system for postmenopausal women

Номер: CN116363128A
Принадлежит:

The invention discloses a vagina micro-ecology evaluation model and system for a menopausal woman, and belongs to the technical field of microscopic image data information processing, and the evaluation model comprises the following steps: examining vaginal secretion smears of a healthy menopausal woman and a childbearing age woman through a microscope, extracting microscopic image information, and obtaining a first data set of vagina micro-ecology indexes; performing microscopic examination on vaginal secretion smears of menopausal healthy women and vaginitis patients, extracting microscopic image information, and obtaining a second data set of vaginal micro-ecological indexes; on the basis of single-factor and multi-factor logistic regression analysis, independent predictive factors of the first vagina micro-ecological index data set and the second vagina micro-ecological index data set are obtained, and important indexes suitable for the postmenopausal women are screened out in a combined ...

Подробнее
22-08-2023 дата публикации

Engineered exosome targeting liver antagonism PCSK9 and specifically binding to LDL-C as well as construction method and application of engineered exosome

Номер: CN116622639A
Принадлежит:

The invention provides an engineered exosome targeting liver antagonism PCSK9 and specifically combined with LDL-C as well as a construction method and application of the engineered exosome, and belongs to the technical field of exosomes. According to the invention, transmembrane protein PTGFRN is modified, and an L3-L7 section PTGFRN sequence containing LDLR is subjected to fusion expression outside a membrane, so that LDL-C can be specifically combined; meanwhile, a PCSK9 inhibiting drug Inclisiran is connected with the surface of the exosome. The engineered exosome has the dual effects of antagonizing PCSK9 and promoting LDL-C degradation at the same time, not only can efficiently target the liver and inhibit expression of PCSK9 by liver cells, but also can be specifically combined with LDL-C to be degraded in the liver, a brand-new way is provided for reducing the blood fat content, and the engineered exosome has wide application value. Meanwhile, the engineered exosome provided by ...

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01-08-2023 дата публикации

Information recommendation method and device based on embedded table compression, equipment and medium

Номер: CN116522003A
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The invention relates to an information recommendation method and device based on embedded table compression, equipment and a medium. The method comprises the steps of determining to-be-compressed features and non-compressed features in a to-be-compressed embedding table of a recommendation model according to a preset compression ratio, and generating a similarity index matrix based on the similarity between the to-be-compressed features and the non-compressed features. And then generating an index dictionary based on the similarity index matrix, and replacing the first feature mapping dictionary according to the index dictionary to generate a second feature mapping dictionary. And finally, after to-be-recommended data is obtained, replacing features in the to-be-recommended data according to the second feature mapping dictionary, inputting the replaced features into the recommendation model, and outputting a prediction result. On the premise of not excessively influencing the model precision ...

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20-06-2023 дата публикации

Semiconductor processing equipment

Номер: CN116266544A
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The invention provides semiconductor processing equipment, and relates to the technical field of semiconductor equipment. The semiconductor processing equipment comprises a visual unit which is arranged on a shell of the semiconductor processing equipment and is used for observing the internal condition of the semiconductor processing equipment; the clearing unit is arranged in the semiconductor processing equipment and used for clearing a target object, located on one side in the equipment, of the visual unit; and the driving unit is connected with the clearing unit and used for driving the clearing unit so as to clear the target object, located on one side of the interior of the equipment, of the visual unit. According to the semiconductor processing equipment, the clearing unit is arranged to be matched with the visual unit and cooperates with the visual unit to monitor the semiconductor processing process, so that the processing technological process is conveniently and accurately controlled ...

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29-08-2023 дата публикации

Machine tool driving system fault detection device and method based on digital mirror shadow technology

Номер: CN116652692A
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The invention discloses a machine tool driving system fault detection device and method based on a digital mirror shadow technology, and the detection device is a vibration sensor which is disposed on a driving system of a machine tool. The vibration sensor comprises a magnet and a magnetizer, when vibration measurement is carried out on an object, mechanical vibration parameters can be converted into electric parameter signals, the vibration sensor is connected with the analyzer through a measuring circuit, the analyzer transmits data to the virtual platform, and the running state of a machine tool is displayed on the displayer in real time. And a digital mirror shadow technology system is used for recording and learning fault data, so that interconnection and intercommunication of four layers including a physical layer, a data layer, a twinborn layer and a later service layer are realized. The system is simple in structure and convenient to use, the operation process of the machine tool ...

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01-08-2023 дата публикации

Graphene EEG electrode based on titanium dioxide nanotube array and preparation method thereof

Номер: CN116509404A
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The invention discloses a graphene EEG electrode based on a titanium dioxide nanotube array and a preparation method thereof, and the preparation method comprises the following steps: step 1, connecting a pretreated titanium sheet with a positive electrode of a programmable linear direct-current power supply and taking the titanium sheet as a working electrode, connecting a platinum sheet electrode as a counter electrode with a negative electrode of the programmable linear direct-current power supply, and taking the platinum sheet electrode as a negative electrode as a positive electrode of the programmable linear direct-current power supply; a titanium sheet and a platinum sheet electrode are placed in the solution to react for 0.5-2 h, so that a titanium dioxide nanotube array is generated after an anodic oxidation reaction is conducted on the surface of the titanium sheet, cleaning is conducted, and an oxidized titanium sheet is obtained; 2, the oxidized titanium sheet serves as a substrate ...

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23-05-2023 дата публикации

User side energy storage optimization configuration method

Номер: CN116154813A
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The invention discloses a user-side energy storage optimal configuration method, which comprises the following steps of: respectively acquiring daily electricity load capacities in sunny days, rainy days and weekends due to electricity consumption differences in sunny days, rainy days and weekends, and respectively making user-side daily load curves in sunny days, rainy days and weekends after acquisition; according to the daily load curve, the daily discharge power and the charging power of the sunny day, the rainy day and the weekend are calculated respectively, and according to the daily discharge power, the charging power, the discharge duration and the charging duration, the energy storage capacity during charging and the energy storage capacity during discharging are calculated respectively; and comparing the obtained energy storage capacity during daily charging with the energy storage capacity during discharging, and optimizing energy storage configuration according to a comparison ...

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14-04-2023 дата публикации

Data reading method and device and electronic equipment

Номер: CN115964395A
Автор: LI MING, LYU XUTAO, WANG CHEN
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The invention relates to a data reading method and device and electronic equipment. Constructing a first cache according to the first identification information; obtaining a target page number identifier of request data, and searching whether the target page number identifier exists in the first cache; if the first cache does not exist, updating the first cache, and acquiring the requested data by adopting a first mode; if so, reading the requested data from the first cache; wherein the first identification information is related to a data request user, when the first cache is constructed, the data with the highest priority corresponding to the first identification information is stored in the first cache, and after the first cache is updated, the data corresponding to the target page number identification is stored in the first cache. The target data needing to be read is cached in advance by utilizing the first cache, the frequency of directly reading the data in the database is reduced ...

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18-07-2023 дата публикации

Archive filing method and device, electronic equipment and storage medium

Номер: CN116450576A
Автор: XU MANQI, LYU XUTAO, WANG CHEN
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The embodiment of the invention provides an archive filing method and device, electronic equipment and a storage medium, and the method comprises the steps: screening split archives from a to-be-processed archive set, the split archives being an archive set in which spatio-temporal trajectory features of archives in the to-be-processed archive set do not meet a preset condition; selecting split archives, and determining a target archive set meeting archive fusion conditions with the selected split archives from the comparison archive sets based on similarity between archive images in the selected split archives and the comparison archive sets, each comparison archive set is an archive set of the to-be-processed archive set except the selected split archive; and based on the selected split archives and the target archive set, performing archive fusion processing to re-archive the to-be-processed archive set. According to the embodiment of the invention, the archiving accuracy of archives ...

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21-07-2023 дата публикации

5, 8-paraquinone flavane-3-alcohol compound and preparation method thereof

Номер: CN116462649A
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The invention belongs to the technical field of medicine synthesis, and discloses a 5, 8-para-quinone flavane-3-alcohol compound and a preparation method of the 5, 8-para-quinone flavane-3-alcohol compound. The preparation method comprises the following steps: mixing epicatechin, p-hydroxybenzyl alcohol and a catalyst in a solvent, carrying out a reflux reaction, and drying to obtain a crude product; carrying out gradient elution on the crude product by using a reversed-phase chromatographic column to obtain a fraction Fr.1, a fraction Fr.2 and a fraction Fr.3; carrying out gradient elution on the fraction Fr.2 by using a normal phase chromatographic column to obtain a fraction Fr.2-1; and carrying out isocratic elution on the fraction Fr.2-1 by using a reversed-phase chromatographic column, so as to obtain the 5, 8-paraquinone flavane-3-alcohol compound. The method can help research the synthesis mechanism of the 5, 8-para-quinone flavane-3-alcohol compound, provides a certain theoretical ...

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06-06-2023 дата публикации

Image retrieval method and device, computer equipment and medium

Номер: CN116226427A
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The invention relates to the technical field of image retrieval, in particular to an image retrieval method and device, computer equipment and a medium. The method comprises the steps of obtaining an initial associated image sequence according to a first association degree value of an associated image and a target image and a preset sequence, performing updating by combining a second association degree value between a to-be-associated image and the target image to obtain a first associated image updating sequence, determining to-be-screened images in the first associated image updating sequence, and screening the to-be-screened images according to the to-be-screened images. To-be-screened images meeting preset conditions are removed, a second associated image updating sequence is obtained and serves as an image retrieval result of the target image, density measurement is conducted on the to-be-screened images rather than all the associated images, the to-be-screened images meeting the preset ...

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18-04-2023 дата публикации

Adjustable voltage source, power distribution system and power adjusting method of power distribution system

Номер: CN115986752A
Автор: LI HONGTAO, LI ZIJIN, WANG CHEN
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The invention discloses an adjustable voltage source, a power distribution system and a power adjusting method of the power distribution system, and relates to the field of power distribution systems. The method comprises the following steps: determining target active power transmitted between a first line and a second line in the power distribution system and three-phase voltage of power supply sides of the first line and the second line; determining a target adjusting voltage according to the target active power, the three-phase voltages of the first and second line power supply sides, the line impedance, the line load and a target relational expression; and according to the target adjustment voltage, determining and adjusting the transformation ratio corresponding to an amplitude modulation winding and a phase modulation winding in the adjustable voltage source, so as to adjust the transformation ratio of each winding in the adjustable voltage source to enable the voltage of the adjustable ...

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25-04-2023 дата публикации

Point cloud data processing method and device and computer equipment

Номер: CN116012440A
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The invention provides a point cloud data processing method and device and computer equipment, and belongs to the technical field of computers. The method comprises the following steps: storing multi-frame point cloud data of a target area collected by a collection device in each voxel in a preset data model; performing inter-frame bundle adjustment processing on the point cloud data stored in each voxel to obtain middle pose information corresponding to each frame of point cloud data; obtaining a plurality of sub-maps according to each frame of point cloud data and a preset frame number; performing inter-sub-map bundle adjustment processing on each sub-map according to the middle pose information corresponding to each frame of point cloud data to obtain target pose information corresponding to each point cloud data in each sub-map; and optimizing each frame of point cloud data according to the target pose information, the control coordinates of each control point in the control coordinate ...

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02-05-2023 дата публикации

Virtual object control method and device and electronic terminal

Номер: CN116036596A
Автор: WANG CHEN
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The invention provides a virtual object control method and device and an electronic terminal, relates to the technical field of games, and solves the technical problem that the efficiency of placing articles in a virtual scene is relatively low. The method comprises the following steps: in response to a dragging operation for the virtual object, controlling the virtual object to move according to the dragging operation; in response to a quick throwing operation executed in the placement area for the virtual object, determining a throwing direction corresponding to the quick throwing operation; controlling the virtual object to be placed in a first placement area; wherein the first placement area is a placement area which is in the throwing direction and is in contact with a display boundary in the graphical user interface, and the display boundary is a boundary, displayed in the graphical user interface, of at least part of the placement area.

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12-09-2017 дата публикации

A detection meat food in the residual method of antibiotics

Номер: CN0105527367B
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... 种检测肉类食品中抗生素残留的方法,包括以下步骤:(1)利用粉碎机将待测的肉类食品制成匀浆液,将匀浆液置于离心管中,依次加入破乳剂、正己烷、以及磷酸盐缓冲溶液,超声提取,离心后,得到待净化液;(2)将待净化液转移至固相萃取柱中,进行净化,收集洗脱液。在水浴中用氮气吹至近干,加入乙腈水溶液,在涡旋混合器上混合后,过微孔滤膜后滤液待测;(3)用液相色谱‑串联质谱法测定和确证,外标法定量。根据本发明的检测肉类食品中抗生素残留的方法,能够有效提高检测结果的准确性,为食品安全提供有益保障。 ...

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23-06-2023 дата публикации

Optimization method and system for FPGA (Field Programmable Gate Array) technology mapping

Номер: CN116306412A
Автор: WANG CHEN
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The invention relates to the technical field of field programmable gate array (FPGA) circuits, and discloses an optimization method and system for field programmable gate array (FPGA) technical mapping.The method comprises the steps that firstly, an input register transfer level circuit is divided into a plurality of sub-circuits; original circuit input and output end time sequence constraints specified by a user are conducted to input and output ends of all the sub-circuits according to a basic logic gate delay model, and technical mapping is conducted on all the sub-circuits under the constraints. And then recalculating the mapped sub-circuit according to a lookup table delay model, updating the time sequence constraint of the sub-circuit, and performing technical mapping again after adjustment. And repeating the two steps of updating the time sequence constraints of the sub-circuits and performing technical mapping again until the time sequence constraints on all the sub-circuits are ...

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14-07-2023 дата публикации

Workpiece hole contour extraction method, device and equipment and storage medium

Номер: CN116433701A
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The invention relates to a workpiece hole contour extraction method and device, equipment and a storage medium, and the method comprises the steps: carrying out the binarization processing of a workpiece hole image, obtaining a hole binarization image, and determining the pixel positions of all holes; setting a preset hole boundary for the pixel positions of all the holes, performing image segmentation based on the preset hole boundary and the hole binarization image, and determining an initial hole contour; and performing curve fitting on pixel points of the initial hole contour to determine sub-pixel edge points of the hole contour, and obtaining a target hole contour. According to the workpiece hole contour extraction method, device and equipment and the storage medium provided by the invention, the workpiece hole image is subjected to binarization processing, and the hole contour is determined through the hole binarization image, so that the problems of deformation and shadow of the ...

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