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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 74. Отображено 74.
25-04-2023 дата публикации

Ventilation and smoke exhaust method and device for running train tunnel fire

Номер: CN116006235A
Принадлежит:

The invention provides a train running tunnel fire ventilation and smoke exhaust method and device, and the method comprises the steps: obtaining the running position of a train and the fire position on the train, which are detected by a fire positioning device, under the condition that the fire positioning device detects that the train has a fire; according to the driving direction and the driving position of the train, predicting all possible parking positions of the train in each section of the subway tunnel; according to the fire position, listing working state options of the air supply and smoke exhaust subsystems at the two ends of each stopping position, analyzing each working state option, and screening out a target air supply and smoke exhaust subsystem which can only perform smoke exhaust or air supply control from each air supply and smoke exhaust subsystem; and performing linkage control on the target air supply and smoke exhaust subsystem. According to the system, when a train ...

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29-06-2016 дата публикации

3D function washing machine

Номер: CN0205347797U
Принадлежит:

... 本实用新型提供一种3D功能洗衣机,包括3D传感器和洗衣机控制器,所述3D传感器设置在洗衣机桶上,用于检测洗衣机脱水过程中的实时振幅值,并将所述振幅值发送至所述洗衣机控制器;所述洗衣机控制器与所述3D传感器通过zigbee无线传输技术通信相连,用于将接收到的振幅值与预设振幅值进行比对判断,依据判断结果对洗衣机的实时转速进行相应调节;本实用新型的目的在于提供一种3D功能洗衣机,能够准确检测洗衣机脱水桶的振动量,并作出相应的减震措施,减小脱水过程中的振动给洗衣机带来的损害,延长洗衣机的使用寿命。 ...

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01-08-2023 дата публикации

Life prediction model migration method based on long-short period memory network

Номер: CN116523033A
Принадлежит:

The invention provides a life prediction model migration method based on a long-short period memory network, and the method comprises the steps: carrying out the training of a model through employing test data under ideal conditions, freezing a part of an LSTM network layer in a migration process, carrying out the optimization determination of other parts of a network through employing the data in an actual service environment, searching an optimal hyper-parameter through employing a gray wolf algorithm, and carrying out the prediction of a life prediction model. And determining the number of LSTM structure layers and the number of frozen layers, so that the target domain data prediction precision tends to be optimal.

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23-06-2023 дата публикации

Automatic control method and device for energy-saving mode of air conditioner, equipment and medium

Номер: CN116294082A
Принадлежит:

The embodiment of the invention relates to an automatic control method and device for an energy-saving mode of an air conditioner, equipment and a medium. The method comprises the steps that when the air conditioner is started, an energy-saving mode is started; after the air conditioner is started, current operation parameters of the air conditioner are periodically collected; whether the current operation parameters collected every time meet any one of the refrigeration extreme value condition and the heating extreme value condition or not is judged; if any one of the refrigeration extreme value condition and the heating extreme value condition is met, the energy-saving mode is closed; and otherwise, keeping the energy-saving mode in an open state. The embodiment of the invention provides an automatic energy-saving mode control scheme.

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27-06-2023 дата публикации

Method for optimizing national standard GB28181 real-time video stream on demand

Номер: CN116346790A
Принадлежит:

The invention relates to a method for optimizing national standard GB28181 real-time video stream on demand. The method comprises the following steps: integrating a media stream receiver and a media server at a client; the method comprises the following steps: taking a sip server as a communication server, automatically registering a client to the sip server when the client is online, establishing a communication link, and obtaining an ip address and a port of the client by the sip server; the client initiates a request to the sip server through the communication link, and starts an rtp streaming media service before the request is initiated; the sip server initiates a request to a media stream sender after receiving the request sent by the client, and request data comprises an ip address and port information of the client; after the media stream sender and the sip server complete sip signaling interaction, the media stream sender pushes an rtp real-time video stream to the client according ...

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28-07-2023 дата публикации

Double-evaporator refrigerator

Номер: CN116499178A
Принадлежит:

The invention belongs to the technical field of refrigerators, and particularly relates to a double-evaporator refrigerator which comprises a refrigerator body, a refrigerating area and a freezing area are arranged in the refrigerator body from top to bottom, a partition plate is horizontally and fixedly connected between the refrigerating area and the freezing area, a plurality of storage areas are arranged in the freezing area, and refrigerating coils are horizontally and detachably installed between every two adjacent storage areas. Drawers are arranged in the storage areas, a plurality of grooves are formed in the positions, corresponding to the two sides of each drawer, of the inner wall of the cabinet body, and reset devices for assisting the drawers in resetting are arranged in the grooves. By arranging the reset device, the reset device can be driven by the drawer to deflect along with continuous pushing of the drawer, and after the reset device deflects by a certain angle, the ...

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19-10-2017 дата публикации

AUTOMATIC LAMINATING APPARATUS AND LAMINATING METHOD

Номер: WO2017177624A1
Принадлежит:

Provided are an automatic laminating apparatus (100) and a laminating method. The automatic laminating apparatus (100) comprises at least one first laminating device (101), at least two second laminating devices (102), and a conveying device (103). The first laminating device (101) carries out vision alignment and lamination on an optically clear adhesive and a first component to form a first laminated component; the conveying device (103) conveys the first laminated component to the second laminating devices (102); the second laminating devices (102) carry out the vision alignment and lamination on the first laminated component and a second component to form a second laminated component.

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03-01-2014 дата публикации

CATALYTIC CRACKING CATALYST CONTAINING MODIFIED Y TYPE MOLECULAR SIEVE AND PREPARATION METHOD THEREFOR

Номер: WO2014000423A1
Принадлежит:

Disclosed are a catalytic cracking catalyst and the preparation method therefor. The catalytic cracking catalyst comprises a cracking active component, 10 weight%-70 weight% of clay in dry weight, and 10 weight%-40 weight% of an inorganic oxide binder; the cracking active component comprises: relative to the weight of the catalytic cracking catalyst, 10 weight%-50 weight% of a modified Y type molecular sieve and 0-40 weight% in dry weight of other molecular sieves, wherein the modified Y type molecular sieve has a lattice constant of 2.420-2.440 nm; by weight percent of the modified Y type molecular sieve, the content of P is 0.05-6%, the content of RE203 is 0.03-10%, and the content of aluminium oxide is less than 22%; and the specific hydroxyl nest concentration is less than 0.35 mmol/g and greater than 0.05mmol/g.

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25-04-2023 дата публикации

Graphite double-hole nozzle structure of arcing cavity of ion spray gun

Номер: CN116005265A
Принадлежит:

The invention provides an ion spray gun arcing cavity graphite double-hole nozzle structure, the ion spray gun arcing cavity graphite double-hole nozzle structure is suitable for an ion spray gun, and the ion spray gun is provided with two independent and same arc cavities, namely an upper arc cavity and a lower arc cavity; the two rectangular nozzle structures are oppositely arranged up and down and cover the upper arc cavity and the lower arc cavity; the upper arc cavity and the lower arc cavity independently generate plasmas which are adsorbed around a beam current to neutralize charges on the surface of a wafer; the two small holes of each rectangular nozzle structure are arranged up and down, the two rectangular nozzle structures are installed on the arc cavity of the ion spray gun, and the distance between the two small holes is 16 mm. The arc cavity graphite double-hole nozzle structure of the ion spray gun is low in design cost and low in maintenance cost, plasma can be emitted ...

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28-04-2023 дата публикации

Ventilation and smoke exhaust system and method for inverted underground station

Номер: CN116025404A
Принадлежит:

The invention provides a ventilation and smoke exhaust system and method for an inverted underground station. The ventilation and smoke exhaust system comprises a public area air supply and smoke exhaust subsystem and a heat removal and air supply and smoke exhaust subsystem. The public area air supply and smoke exhaust subsystem comprises a first station public area air supply and smoke exhaust pipe, a first station hall public area air supply and smoke exhaust pipe and a first air supply and smoke exhaust device. The first platform public area air supply and smoke exhaust pipe and the first station hall public area air supply and smoke exhaust pipe are respectively communicated with the first air supply and smoke exhaust device; the heat extraction and air supply smoke exhaust subsystem comprises a rail top smoke exhaust air pipe, a second station public area air supply smoke exhaust pipe, a second station hall public area air supply smoke exhaust pipe and a second air supply smoke exhaust ...

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09-05-2023 дата публикации

Resource scheduling method, device and equipment

Номер: CN116089054A
Принадлежит:

The embodiment of the invention provides a resource scheduling method, device and equipment. The method comprises the following steps: acquiring a first resource request of terminal equipment, wherein the first resource request comprises a resource quantity and a resource attribute; according to the resource attribute, a resource control mode corresponding to the first resource request is determined, and the resource control mode is silence load control or special load control; and requesting the core network equipment to allocate resources to the terminal equipment according to the resource control mode. And the flexibility of resource allocation is improved.

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07-09-2018 дата публикации

O2O MULTI-CHANNEL COMMUNICATION METHOD AND SYSTEM

Номер: WO2018157446A1
Принадлежит:

The present invention relates to the technical field of network communication, and provides an O2O multi-channel communication method and system. The method comprises: receiving channel state information sent by a high-speed cache module, the channel state information comprising heartbeat information and current resource usage information; determining whether the heartbeat information is synchronous channel normal information; if the heartbeat information is not the synchronous channel normal information, switching from a WCF duplex communication mode to an SOCKET asynchronous communication mode; performing progress monitoring and resource monitoring according to the current resource usage information; and performing server capacity expansion according to the resource monitoring result. The present invention can optimize online to offline communication modes, improve online to offline point-to-point synchronous communication, and save resources.

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26-05-2023 дата публикации

Database-based railway signal ground equipment interface data analysis and storage method

Номер: CN116170271A
Принадлежит:

The invention relates to a database-based railway signal ground equipment interface data analysis and storage method. The method comprises the following steps of: 1) setting various attribute columns required to be stored by a data object according to communication data; 2) judging whether the communication data is redundant or not according to the attribute column of the data object; and 3) if the data are non-redundant data, storing the data into the database, otherwise, not storing the data. Redundancy elimination is carried out on data by utilizing a rule for formulating data redundancy degree analysis, data storage is carried out based on a database on this basis, efficient processing of communication data of railway signal ground equipment is realized, and the method has the characteristic of high operation reliability and can be widely popularized and applied.

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25-07-2023 дата публикации

Construction and application of peach variety DNA (deoxyribonucleic acid) fingerprint database based on SNP (single nucleotide polymorphism)

Номер: CN116479158A
Принадлежит:

The invention discloses construction and application of a peach variety DNA fingerprint spectrum database based on SNP (Single Nucleotide Polymorphism). According to the invention, deep 30X sequencing is carried out on 50 standard peach varieties and excellent new varieties, a DNA fingerprint database of peach varieties formed by 115 core SNP loci is provided, the DNA fingerprint database can be used for identifying peach varieties, and peach varieties to be detected with coincidence rate greater than or equal to 90% are the same variety. Compared with the previous identification method, the method provided by the invention can provide more objective, more accurate and more efficient identification and detection results for standard varieties and excellent and new varieties in the market.

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15-08-2023 дата публикации

Network comprehensive information monitoring method, device and equipment and readable storage medium

Номер: CN116599749A
Принадлежит:

The invention belongs to the technical field of network information monitoring. The invention discloses a network comprehensive information monitoring method, device and equipment and a readable storage medium. The method comprises the following steps: constructing a data analysis model and an illegal detection model; performing data analysis by using a data analysis model according to the real-time network comprehensive information data; performing illegal detection by using an illegal detection model according to the real-time network comprehensive information data characteristics and information data types; and if the real-time illegal detection result is that the illegal behavior exists, intercepting and tracking the corresponding real-time network comprehensive information data. The device comprises a data acquisition unit, a model construction unit, a data acquisition unit, a data analysis unit and an illegal detection unit. The problems that in the prior art, the monitoring and judging ...

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15-08-2023 дата публикации

High-safety protection device for bridge protection

Номер: CN116591024A
Автор: REN FEI, ZHANG SHOUJUN
Принадлежит:

The invention relates to a high-safety protection device for bridge protection, which comprises shells and rubber columns, the shells are sequentially spliced to form a cylindrical shell, a section of arc-shaped buffer block is correspondingly arranged in each section of shell, a plurality of extrusion units are arranged on each section of arc-shaped buffer block, and each extrusion unit comprises a rubber pad, a bearing pad, a connecting block and a connecting column. The rubber pads abut against the outer wall of the pier, every two adjacent sections of the shell are connected through a connecting assembly, arc-shaped notches are formed in the two ends of each section of the shell, and every two adjacent sections of the shell are spliced to form an arc-shaped groove. One part of each rubber column is attached to the corresponding arc-shaped groove, the arc-shaped buffer blocks corresponding to every two adjacent sections of shells are connected through the rubber columns, and the ends ...

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18-04-2023 дата публикации

Mine spraying equipment based on artificial intelligence manufacturing technology and control method thereof

Номер: CN115970924A
Принадлежит:

The invention discloses mine spraying equipment based on an artificial intelligence manufacturing technology and a control method thereof.The mine spraying equipment comprises a main water pipe and a detection frame, the side face of the main water pipe is fixedly sleeved with a plurality of first metal connecting pieces, one end of each first metal connecting piece is in bolted connection with a fixing frame, and a truck is arranged on one side of the fixing frame; one side of the truck is connected with a transition system control panel, one end of the main water pipe is fixedly connected with the truck through a connecting pipe, the spraying pipe set is provided with a spraying direction-adjusting control assembly, and based on the Alicloud technology and the artificial intelligence machine vision technology, collision can be early warned without installing a radar and a vehicle-mounted camera. And meanwhile, the selection of an optimal spraying path is realized based on a Dijkstra algorithm ...

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25-07-2023 дата публикации

Intelligent air conditioner control method based on human body motion state

Номер: CN116481130A
Принадлежит:

The invention discloses an intelligent air conditioner control method based on a human body motion state, and relates to the technical field of intelligent household appliances. The method comprises the following steps: S1, transmitting electromagnetic waves in a preset acquisition area and receiving corresponding echo signals by using radar equipment every time a preset sampling period is passed; s2, analyzing human body position information carried in the echo signal; s3, matching is carried out based on the analyzed human body position information and the cached human body motion trail; s4, according to a matching result, updating the motion trail or creating a new motion trail; s5, deleting the human body motion trails outside the preset acquisition area range; and S6, the air conditioner air supply strategy is adjusted in real time according to the number of the human body movement tracks and the movement state in one sampling period. According to the invention, the discrete radar ...

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23-06-2023 дата публикации

Functional composite fracturing fluid thickening agent and preparation method thereof

Номер: CN116285938A
Принадлежит:

The invention relates to the technical field of oilfield chemical reagents, in particular to a functional composite fracturing fluid thickening agent and a preparation method thereof. The thickening performance of the thickening agent is improved by utilizing the excellent thickening effect of the cationic guar gum, and the cationic guar gum is coated with cyclodextrin, so that the cationic guar gum is prevented from being biologically decomposed in the storage process, the storage stability of the thickening agent is improved, and no extra bactericide is needed. Cationic groups in cationic guar gum molecules can be adsorbed to the surface of clay to neutralize negative charges of the clay, so that an anti-swelling effect is achieved, and damage of water-sensitive minerals in a reservoir to an oil and gas reservoir is prevented. The thickening agent disclosed by the invention is scientific and reasonable in component compounding, has excellent thickening performance, storage stability and ...

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22-12-2016 дата публикации

SIMULATION TEST METHOD AND DEVICE, SERVICE SIMULATOR AND STORAGE MEDIUM

Номер: WO2016201849A1
Автор: REN, Fei
Принадлежит:

Disclosed are a simulation test method and device, and a service simulator. The method comprises: after acquiring a test instruction from a width cluster system, encapsulating and sending a service request message; according to the service request message, generating uplink air interface data and sending same to an access network; receiving downlink air interface data triggered by the access network for the uplink air interface data, decoding same and determining an established air interface connection to the access network; and according to the established air interface connection, triggering and generating service data so as to conduct a test. Also disclosed is a computer storage medium.

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18-04-2023 дата публикации

Subway carriage passenger capacity distribution detection method and device based on acceleration process

Номер: CN115979397A
Принадлежит:

The invention relates to the field of rail transit, in particular to a subway carriage passenger capacity distribution detection method and equipment based on an acceleration process. The distributed detection method comprises the following steps: acquiring current train operation state parameters, and calculating equivalent traction force instantly contributed by each driving motor; obtaining pull/pressure values between the carriages in the constant acceleration process after the train leaves the station, and calculating the total weight of the carriages in combination with the obtained equivalent traction force of the driving motors and the instant acceleration of the train; calculating the number of people in each compartment according to the obtained total weight of each compartment; and obtaining subway carriage passenger capacity distribution according to the number of people in each carriage. The invention provides a new thought for subway carriage passenger capacity distribution ...

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30-06-2023 дата публикации

Self-contained working method of shallow profiler based on submarine tracking technology

Номер: CN116359996A
Принадлежит:

The invention discloses a self-contained working method of a shallow profiler based on a seabed tracking technology, which comprises the following steps: transmitting a detection signal, and receiving a feedback signal until an effective feedback signal is obtained. And storing the feedback signal of the current frame and tracking the corresponding seabed position at the same time. And calculating the first arrival wave energy according to the seabed position, and adjusting the system gain. And calculating signal characteristics of two sections of signals below the seabed according to the seabed position to adjust the time-varying gain. And the seabed position is compared with the previous seabed position, and the signal emission frequency is adjusted. The measuring range, the signal period and the signal form are adjusted in real time based on the seabed position. And finally, repeating the steps. According to the method, the operation mode that real-time interaction is needed during traditional ...

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09-06-2023 дата публикации

Sterilization type refrigerator

Номер: CN116242078A
Принадлежит:

The sterilization type refrigerator comprises a refrigerator body, sliding grooves are formed in the inner walls of the two sides of the refrigerator body from top to bottom at equal intervals, sliding plates are slidably installed in the sliding grooves, a carrying plate is fixedly installed between every two opposite sliding plates, ultraviolet lamps are fixedly installed at the bottoms of the carrying plates and the top wall of the refrigerator body, and circular grooves are formed in the top ends of the carrying plates; a circular truncated cone is rotationally installed in the circular groove, a rectangular clamping groove is formed in the top end of the circular truncated cone, a containing frame is arranged above the circular truncated cone, a rectangular clamping block matched with the rectangular clamping groove is arranged at the bottom end of the containing frame, a groove is formed in the front side of the carrying plate, and a pull groove is formed in the bottom wall of the ...

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14-07-2023 дата публикации

Preparation method and application of layer-by-layer coated core-shell structure flame retardant

Номер: CN116426035A
Принадлежит:

The invention provides a layer-by-layer coated core-shell structure flame retardant as well as a preparation method and application thereof, a phosphorus flame retardant is taken as a center, and the phosphorus flame retardant is subjected to multi-layer coating by applying MOFs-NH2, hexachlorocyclotriphosphazene and a silane coupling agent. The first coating layer is formed by connecting hexachlorocyclotriphosphazene and MOFs-NH2 through a-P-N-bond; the second coating layer is a silane coupling agent with a functional reactive group, the three components of the core-shell structure flame retardant relate to an intumescent flame retardant synergistic effect of components such as a P system, an N system, a C system, a Si system and transition metal, and a gas phase and condensed phase flame retardant mechanism is exerted. The silicon shell layer has a functional reactive group and can chemically react with a polymer matrix, and the obtained core-shell structure flame retardant is uniformly ...

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02-05-2023 дата публикации

Short-circuit type insulation connecting rod

Номер: CN116053871A
Принадлежит:

The invention discloses a short-circuit type insulation connecting rod, which comprises a main body mechanism, a cleaning mechanism and a supporting mechanism, and is characterized in that the main body mechanism is internally provided with a sleeve joint, and the sleeve joint is internally provided with a columnar cavity; the cleaning mechanism comprises a rotating sleeve rotationally connected to the interior of the sleeving head, and brushes are arranged on the inner side of the rotating sleeve in the circumferential direction; the supporting mechanism comprises an upper sleeve connected to the bottom of the sleeving head, the bottom of the upper sleeve is rotationally connected with a lower sleeve, and an adjusting assembly is arranged at the bottom of the lower sleeve; the adjusting assembly comprises a rotating handle rotationally connected to the bottom of the lower sleeve, a cross-shaped inserting plate is arranged at the top of the rotating handle, and an inserting opening is formed ...

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30-06-2023 дата публикации

Ship target automatic detection system and method

Номер: CN116359927A
Принадлежит:

The invention relates to the technical field of ship target detection, and provides a ship target automatic detection system for automatically detecting a bulk cargo ship in an inland waterway by using side-scan sonar. Comprising a side scan sonar; the side-scan sonar is mounted at the bottom of one side of a navigation channel; the side-scan sonar is used for continuously monitoring the water surface for 24 hours and transmitting sound wave beams to the water surface at a fixed angle, and when the side-scan sonar receives a backscattering signal of a ship body, the system automatically judges that the ship body enters a monitoring area of the side-scan sonar and quickly calculates the ship draft. A side-scan sonar mode is adopted, and the side-scan sonar is installed at the bottom of one side of a navigation channel, so that ship monitoring in the large-range navigation channel can be achieved, the construction difficulty is small, and installation and safety maintenance of equipment are ...

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18-07-2023 дата публикации

Device for detecting morphology and granularity parameters of machine-made sand by using separation method based on images

Номер: CN116448630A
Автор: REN FEI, LIU JUNLONG
Принадлежит:

The invention provides a device for detecting morphology and granularity parameters of machine-made sand by using a separation method based on images, and relates to the technical field of machine-made sand detection. A fine sand flow guide part is connected to the supporting mounting part in a sliding manner; the fine sand flow guide part is fixedly connected with a staged screening part; an air guide device is fixedly connected to the fine sand flow guide part, a drying guide device is fixedly connected to the air guide device, and the drying guide device is rotationally connected to the fine sand flow guide part; the fine sand flow guide part is fixedly connected with an operation supporting part; the following detection can be realized, the picture quality is effectively improved, smear is avoided, and the problems that the smear is very easy to occur during image acquisition, the detection precision is influenced, the integrated detection of coarse sand and fine sand in stages cannot ...

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29-06-2017 дата публикации

METHOD AND APPARATUS FOR TESTING SATELLITE COMMUNICATION SYSTEM

Номер: WO2017107500A1
Автор: ZHU, Dayong, REN, Fei
Принадлежит:

Provided are method and apparatus for testing a satellite communication system. The method comprises: an analogue end station accessing a target master station by means of an analogue satellite link, wherein the analogue end station and the analogue satellite link are generated by pre-setting an analogue parameter; the analogue end station generating a multi-user data message; and the analogue end station sending the data message to the target master station by means of the analogue satellite link.

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15-08-2023 дата публикации

Refrigerator fault diagnosis method and system based on refrigerator characteristic curve

Номер: CN116595348A
Автор: MA PEI, SHANG JING, REN FEI
Принадлежит:

The invention discloses a refrigerator fault diagnosis method and system based on a refrigerator characteristic curve. The method comprises the following steps: acquiring sensor data during operation of a refrigerator; calculating a corresponding characteristic curve according to sensor data; comparing the characteristic curve with a preset fault type characteristic curve; and determining the fault type of the refrigerator according to the comparison result. According to the refrigerator fault diagnosis system, the sensor data during operation of the refrigerator are collected, the corresponding characteristic curve is calculated, the fault type of the refrigerator can be accurately recognized, the system can be widely applied to various types of refrigeration equipment such as household refrigerators and commercial refrigerators, the fault diagnosis efficiency of the refrigerator can be effectively improved, and the maintenance cost can be effectively reduced.

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20-03-2014 дата публикации

CATALYTIC CRACKING CATALYST OF RARE EARTH-CONTAINING Y-TYPE MOLECULAR SIEVE AND PREPARATION METHOD THEREFOR

Номер: WO2014040365A1
Принадлежит:

The present invention relates to a catalytic cracking catalyst and a preparation method therefor; the catalytic cracking catalyst contains an active cracking component, an optional mesoporous silicon-aluminium material, clay and a bonder, wherein the cracking active component substantially comprises or consists of the group of a rare earth-containing Y-type molecular sieve, optional other Y-type molecular sieves and optional molecular sieves having an MET structure; for the rare earth-containing Y-type molecular sieve, the rare earth content thereof based on the rare earth oxide is 10 wt%- 25 wt%, such as 11 wt%-23 wt%, the lattice constant is 2.440 nm-2.472 nm, such as 2.450 nm-2.470 nm, the degree of crystallinity is 35%-65%, such as 40%-60%, and the atomic ratio of the skeleton silicon/aluminium is 2.5-5.0. The product of the ratio of the intensity I1 of the peak 2θ = 11.8° ± 0.1° to the intensity I2 of the peak 2θ = 12.3° ± 0.1° in the X-ray diffraction pattern of the molecular sieve ...

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25-04-2023 дата публикации

Reversible fire early warning composite aerogel and preparation method thereof

Номер: CN115999460A
Принадлежит:

The invention relates to a reversible fire early-warning composite aerogel and a preparation method thereof.The reversible fire early-warning composite aerogel is magnetic graphene oxide/expanded graphite/biomass matrix composite aerogel, functional bodies of the composite aerogel are evenly dispersed in a biomass aqueous solution matrix, and the magnetic graphene oxide/expanded graphite/biomass matrix composite aerogel is prepared. Constructing a three-dimensional network structure by utilizing intermolecular hydrogen bond crosslinking; reversible resistance-temperature response characteristics of Fe3O4 nanoparticles, semiconductor behaviors of cooperating with graphene oxide for fire early warning and charring characteristics that expanded graphite is expanded into a heat insulation layer and a biomass matrix at a high temperature are fully utilized, and the reversible fire early warning composite aerogel which has excellent flame retardance and can break through single-time temperature ...

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14-07-2023 дата публикации

Intelligent noise reduction method and system for refrigerator

Номер: CN116428817A
Принадлежит:

The invention discloses an intelligent noise reduction method for a refrigerator. The method comprises the steps that a human body activity threshold value is set and fixed; the method comprises the following steps: connecting an indoor router through a mobile phone APP configuration detection module, receiving a wireless signal of the router, and obtaining wireless channel state information CSI; the detection module calculates a human body activity value according to the wireless channel state information CSI, if the human body activity value is larger than a human body activity threshold value, it is judged that there is a person, and otherwise, it is judged that there is no person; the detection module obtains network time, and uploads the network time and the information of judging whether there is a person or not to the refrigerator master controller; the refrigerator master control controls the running state of the refrigerator according to the network time and the information of ...

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25-04-2023 дата публикации

Target controller of railway transponder

Номер: CN116009436A
Принадлежит:

The invention discloses a target controller of a railway transponder, which is characterized in that the target controller of the transponder (BOC) is designed according to the overall technical scheme of a train control interlocking integrated system, and on the premise of ensuring safe and reliable communication, message communication with an active transponder interface is realized, and the reliability of the target controller of the railway transponder is improved. And the functions of monitoring the state of the transponder transmission cable and managing the state of the BOC are realized.

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26-05-2023 дата публикации

Intelligent refrigerator capable of automatically adjusting rotating speed of compressor through WiFi channel detection

Номер: CN116164493A
Автор: PINGON, REN FEI, YUAN WEI
Принадлежит:

The invention discloses an intelligent refrigerator capable of automatically adjusting the rotating speed of a compressor through WiFi channel detection, and relates to the technical field of intelligent refrigerators. The intelligent refrigerator comprises a WiFi module, a control software logic board, a compressor circuit control board and a compressor. The WiFi module is arranged in the intelligent refrigerator. The WiFi module is connected with the compressor circuit control board through a UART interface; a CSI detection program and a compressor control logic software module are arranged in the WiFi module; the CSI detection program is used for judging whether a person exists in the environment or not and transmitting a judgment result to the refrigerator compressor circuit control board through the UART interface on the WiFi module; the compressor circuit control board is connected with the compressor through a user-defined interface. According to the method, information such as the ...

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01-03-2018 дата публикации

QPCR GENOTYPING TECHNIQUE-BASED ATHLETICISM GENE DETECTION AND EVALUATION METHOD AND SYSTEM

Номер: WO2018036495A1
Принадлежит:

A qPCR genotyping technique-based athleticism gene detection and evaluation method. The gene evaluation system performs fluorescent PCR detection on athleticism gene polymorphic sites of subjects, and assigns different degrees of contribution to the different polymorphic sites. Statistical analysis is performed according to gene detection results and the different degrees of contribution to obtain individualized evaluation results. The evaluation results are collected to establish an athletic ability gene database. The method can be used to thoroughly evaluate the athletic ability and related risks of the subject. The evaluation is performed on a precise basis, is highly efficient, and provides a stable and accurate evaluation result. When recruiting athletes, the method can assist current talent selection means in selecting athletes. When training athletes, the method can be used to manage the athletes and provide the athletes with individualized training guidance, thereby solving a problem ...

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29-08-2023 дата публикации

Blasting drilling method, device and equipment based on artificial intelligence and medium

Номер: CN116664553A
Принадлежит:

The invention relates to a blasting drilling method and device based on artificial intelligence, equipment and a medium, and relates to the technical field of production detection, and the method comprises the steps: obtaining road image information and a mine car driving track, carrying out the training recognition processing of the road image information, obtaining ore recognition information, and carrying out the blasting drilling based on the ore recognition information and the mine car driving track. Determining whether ore rolling contact exists when the mine car travels into a preset range, if the ore rolling contact exists when the mine car travels into the preset range, determining ore rolling information based on the ore identification information, and judging whether the ore rolling information conforms to preset standard ore information or not, and if not, generating an ore carrying instruction, and the carrying mechanical arm is controlled to carry the ore corresponding to ...

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25-08-2023 дата публикации

Air conditioner autonomous operation control method and system based on big data

Номер: CN116642258A
Принадлежит:

The invention provides an air conditioner autonomous operation control method and system based on big data. The method comprises the following steps that air conditioner reported data is collected; based on the collected data, automatic control over operation of the air conditioning equipment is achieved; and collecting user regulation and control data of the user in the autonomous operation state of the air conditioner to realize the optimization of the model.

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23-05-2023 дата публикации

High-luminous-efficiency flip LED chip and preparation method thereof

Номер: CN116154061A
Принадлежит:

The invention discloses a high-luminous-efficiency flip LED chip and a preparation method thereof. The chip structurally comprises a sapphire substrate, a GaN nucleating layer, an n-GaN layer, a current expansion layer, a quantum well light-emitting layer, an EBL electron blocking layer, a p-GaN layer, a light reflecting layer, a transparent conducting layer, a first electrode layer, a high-reflectivity DBR layer and a second electrode layer from bottom to top. Wherein the material of the reflective layer is of a GaN/AlN superlattice structure. According to the invention, the GaN/AlN superlattice reflective layer is grown on the p-type gallium nitride, the reflective layer is etched to form periodically arranged patterns, and the etched region of the reflective layer is exposed out of the p-GaN layer, so that the ohmic contact between the transparent conductive layer and the p-GaN layer is not affected; according to the structure, light emitted to the p-GaN layer is partially reflected, ...

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30-06-2023 дата публикации

Preparation method of self-repairing hydrogel flame-retardant coating

Номер: CN116355478A
Принадлежит:

The invention belongs to the technical field of new materials, and particularly relates to a preparation method and application of a self-repairing hydrogel flame-retardant coating, self-repairing hydrogel is prepared from polyvinyl alcohol, chitosan, modified chitosan, sodium tetraborate and a nanometer material, then water-based polyacrylic acid and the self-repairing hydrogel are blended and uniformly stirred, the material surface is coated with the mixture, and the self-repairing hydrogel flame-retardant coating is obtained. The self-repairing flame-retardant hydrogel coating is formed. The self-repairing flame-retardant hydrogel coating contains a carbon source, an acid source, a gas source and a nano synergistic flame retardant to form a synergistic intumescent flame-retardant system, meanwhile, the method adopts the self-repairing hydrogel to show good self-repairing and flame-retardant properties, and the self-repairing flame-retardant hydrogel coating has wide application prospects ...

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29-08-2023 дата публикации

Automatic forming system for corrugated steel plate composite wall and using method

Номер: CN116652596A
Принадлежит:

The invention discloses an automatic forming system for a corrugated steel plate composite wall and a using method.The forming system comprises a feeding device, a punching device, a punching and receiving device, an assembling device and a control system, and the feeding device, the punching device, the punching and receiving device and the assembling device are continuously arranged front and back; the corrugated steel plate moves along the feeding device, the punching device, the punching and receiving device and the assembling device, and the feeding device, the punching device, the punching and receiving device and the assembling device are connected with the control system. The feeding device, the punching device, the punching and receiving device and the assembling device are linked to carry out continuous operation of feeding, punching, receiving and assembling, continuous operation is achieved through automatic stepping feeding, the operation efficiency is improved, the labor intensity ...

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16-05-2023 дата публикации

Evaluation method and device for critical strain capacity of bent pipe combination section

Номер: CN116127806A
Принадлежит:

The invention relates to the technical field of pipeline stress analysis, in particular to a method and device for evaluating the critical strain capacity of a bent pipe combination section. The method comprises the steps that according to the size and material parameters of the pipeline, a stress-strain curve of the pipeline is obtained through Ramberg-Osgood constitutive model fitting; constructing a pipeline finite element model according to the stress-strain curve, and applying a combined load; a load-displacement curve of the pipeline is obtained, and the load of the bent pipe section reaching the critical buckling state is determined; the axial direction strain of the stable strain sections of the first straight pipe section and the second straight pipe section is extracted in the critical buckling state; and calculating the average value of the axial direction strain of the stable strain section as the critical strain of the pipeline. Through the embodiment of the invention, the ...

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09-05-2023 дата публикации

Pancreatic cancer prognosis prediction model establishment method

Номер: CN116092664A
Принадлежит:

The invention relates to a pancreatic cancer prognosis prediction model establishment method, which comprises the following steps that S1, a first calculation unit performs pancreatic cancer prognosis related factor statistical analysis on case information stored in a database to obtain factors related to the long-term survival condition of a pancreatic cancer patient; s2, dividing the cases into a modeling group and a verification group by a second calculation unit, performing multi-factor regression analysis on factors related to the long-term survival condition of the pancreatic cancer patients in the modeling group cases, and screening independent risk factors influencing the prognosis of the pancreatic cancer patients; s3, a model construction unit converts the screened independent risk factors into scores in proportion, and a pancreatic cancer patient prognosis prediction model is constructed; and S4, the central control unit performs repeated sampling correction on the constructed ...

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11-04-2023 дата публикации

Cartilage tissue induced differentiation culture medium, cartilage tissue and culture method

Номер: CN115948327A
Принадлежит:

The invention discloses a cartilage tissue induced differentiation culture medium, a cartilage tissue and a culture method. The culture medium is prepared by adding dexamethasone, linoleic acid, citrate, ascorbic acid, sodium pyruvate, trehalose, insulin-transferrin-selenium/selenite, BSA (Bovine Serum Albumin), proline, TGF-beta3 and the like into a basic culture medium. The culture medium is used for carrying out induced differentiation on stem cells, excellent cartilage tissues can be obtained, and the defects that in the prior art, other cartilage tissue induced differentiation culture media cannot induce multiple types of stem cells, the induction time is long, the cell proliferation coefficient is low, the culture system requirement is high, and the extracellular matrix content of the obtained cartilage tissues is low can be overcome. A new research method is provided for cartilage tissue engineering, and a new theoretical basis is also provided for clinical osteoarthritis and cartilage ...

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07-04-2023 дата публикации

Busbar wire clamp device for temporary short circuit of transformer substation

Номер: CN115939805A
Принадлежит:

The invention discloses a transformer substation temporary short circuit busbar wire clamp device, and relates to the technical field of temporary short circuit wire clamps, the transformer substation temporary short circuit busbar wire clamp device comprises a main body mechanism, a wire clamp mechanism, a driving mechanism and a telescoping mechanism, the main body mechanism comprises an operation rod used for supporting a wire clamp and a hand-held rod of a hand-held part, and the top end of the operation rod is provided with a placing groove; the wire clamping mechanism is arranged above the operating rod and comprises a mounting block, an upper clamping plate, a lower clamping plate and a clamping plate, the driving mechanism is arranged in the operating rod and comprises a driving motor arranged in the operating rod and a rotating sleeve arranged in a placing groove and connected with the driving motor, and the telescopic mechanism is arranged in the handheld rod and connected with ...

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25-08-2023 дата публикации

High-temperature baking type water-based protective coating and preparation method thereof

Номер: CN116640487A
Принадлежит:

The invention belongs to the technical field of water-based protective coatings, and particularly relates to a high-temperature baking type water-based protective coating and a preparation method thereof. The water-based paint is prepared from the following raw materials in parts by weight: 20 to 30 parts of first water-based emulsion, 5 to 10 parts of second water-based emulsion, 0.5 to 1.0 part of coalescing agent, 0.5 to 1.0 part of dispersing agent, 0.1 to 0.3 part of wetting agent, 0.5 to 3 parts of scratch-resistant additive, 0.2 to 0.5 part of foaming agent, 40 to 60 parts of inorganic filler, 0.1 to 0.3 part of sterilizing agent, 0.2 to 1.0 part of thickening agent and 1 to 10 parts of pure water, a film formed by the coating can be baked at a high temperature of 120 DEG C, and can be quickly cured within 15 minutes under the thickness of 1000-2000 microns. And the appearance of a coating film is uniform, undesirable phenomena such as bumps and cracks are avoided, and the product ...

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16-05-2023 дата публикации

Data processing method and device, electronic equipment and storage medium

Номер: CN116126813A
Автор: REN FEI
Принадлежит:

The invention provides a data processing method and device, electronic equipment and a storage medium. The method comprises the steps of obtaining to-be-processed target data; determining a data processing level corresponding to the target data at the current moment according to a preset rule; the data processing levels are divided according to data access popularity; according to the data processing level corresponding to the target data, determining a data compression algorithm corresponding to the target data and/or a corresponding storage medium; and when it is judged that the data processing level of the target data is changed, performing compression processing on the target data according to a data compression algorithm corresponding to the changed data processing level, and/or storing the target data into a storage medium corresponding to the changed data processing level. According to the data processing method and device, the data processing levels are divided, and different data ...

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02-05-2023 дата публикации

Wafer-level packaging process method of cavity structure

Номер: CN116053202A
Принадлежит:

The invention discloses a cavity structure wafer-level packaging process method, and relates to the technical field of cavity structure wafer-level packaging, the cavity structure wafer-level packaging process method comprises a chip carrier and a substrate wafer, the top of the chip carrier is connected with the substrate wafer through bonding, the bottom of the chip carrier is coated with glue, a metal cover is bonded on the glue of the chip carrier, and the metal cover is connected with the substrate wafer through bonding. A heat dissipation seat is mounted on one side of the metal cover; the bump metal layer is additionally arranged on the top of the whole substrate wafer, in a flip chip interconnection mode, the metal layer is a key interface layer between a metal bonding pad and a gold bump or a solder bump on an IC (Integrated Circuit), and the layer is one of key factors of a flip chip packaging technology. High-reliability electrical and mechanical connection is provided for the ...

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16-05-2023 дата публикации

Multifunctional low-torque axial flow valve with cut-off and non-return functions

Номер: CN116123320A
Принадлежит:

The invention discloses a multifunctional low-torque axial flow valve with cut-off and non-return functions, which relates to the technical field of valves and comprises a valve clack, a reset spring, a valve rod, a flow guide tail cone, a valve front drainage tube, a valve front control valve, a valve rear drainage tube and a valve rear control valve. The axial flow valve integrates a forced cut-off and closing function, a non-return function and a full-open function, and compared with other types of axial flow valves, the axial flow valve integrates the cut-off function, the non-return function and the full-open function of the valve into one valve, so that one valve has multiple purposes and can adapt to more working conditions; according to the valve, the valve clack, the valve middle cavity and the flow guide tail cone are matched and combined to form a Venturi type streamline water drop type design, vortex can be reduced to the maximum extent, pressure loss is reduced, and fluid resistance ...

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27-06-2023 дата публикации

Video associated event storage and retrieval method, system, equipment and medium

Номер: CN116347119A
Принадлежит:

The invention relates to a video associated event storage and retrieval method, which comprises the following steps of: converting a target video file into an M3U8 format, and segmenting the target video file according to time; each segmented video clip is detected, and associated event information is generated; storing the content of the detected associated event information, encoding the stored data, and storing the encoded content into an extension field of an M3U8 file; the processed M3U8 file is sent to a video client side; the video client analyzes the M3U8 file to obtain associated event information, decodes a video clip, and superposes the associated event information on the video; and the event description content is retrieved in the video client, if the corresponding associated event information is retrieved according to the event description content, the video time period corresponding to the corresponding associated event information is skipped to, and if the corresponding associated ...

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28-04-2023 дата публикации

Stress-strain calculation method and device for irregular sunken morphology of pipeline

Номер: CN116029141A
Принадлежит:

The invention relates to pipeline stress analysis, in particular to a stress-strain calculation method and device for irregular sunken morphology of a pipeline. The method comprises the steps that parameters of the pipeline size and the sunken shape are obtained; laser scanning is utilized to determine the actual morphology of the three-dimensional recess; extracting three-dimensional data points of the concave area according to the actual three-dimensional concave shape of the concave area; according to the three-dimensional data points of the sunken area, a cubic B-spline interpolation function is adopted, and the shape of the pressure head is restored based on the pipeline size and the parameters of the sunken shape; establishing a sunken pipeline finite element model according to the pipeline size and the pressure head shape, and post-processing to obtain the stress-strain state of the sunken area. According to the embodiment of the invention, the method solves a problem that the safety ...

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30-05-2023 дата публикации

Intelligent production liming system for feed-grade calcium hydrophosphate

Номер: CN116174130A
Автор: REN FEI, DAI XINGHU, ZHAO LEI
Принадлежит:

The invention discloses an intelligent production and liming system for feed-grade calcium hydrophosphate, and relates to the technical field of liming. The feed-grade calcium hydrophosphate intelligent production ashing system comprises a crusher, the crusher comprises a crushing shell, a motor is fixedly connected to the right side of the crushing shell, a crushing device is fixedly connected to the outer wall of the crushing shell, and a feeding port is formed in the top of the crushing shell. According to the feed-grade calcium hydrophosphate intelligent production ash melting system, in the rotating process of a second crushing rod, the second crushing rod pokes limestone at the inner bottom of a guide plate to ascend, then the bottom position of a first crushing rod and the second crushing rod are mutually staggered, the effect of cutting the limestone is generated again, the cutting efficiency is improved, and the working efficiency is improved. And in the rotating process of the ...

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04-08-2023 дата публикации

Multi-component phase-change material flame retardant as well as preparation method and application thereof

Номер: CN116535745A
Принадлежит:

The invention relates to a multi-component phase-change material flame retardant of flame retardant particles formed by compounding a phase-change material paraffin, a nano flame retardant and a traditional flame retardant, after the nano flame retardant modifies the phase-change material, the traditional flame retardant is physically coated to form a double-layer core-shell structure, the shell layer is a phase-change material doped with the nano flame retardant, the obtained multi-component phase-change material flame retardant combines the performance advantages of the phase-change material, the nano flame retardant and a traditional flame retardant, the defects of the phase-change material are weakened through combination of the nano flame retardant and the phase-change material, and the energy storage effect of the phase-change material is fully played; heat energy is absorbed through phase change in the initial stage of a fire, the temperature of comburent is reduced, and combustion ...

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25-08-2023 дата публикации

Real-time display method for three-dimensional image of shallow stratum profile data

Номер: CN116643313A
Принадлежит:

The invention discloses a method for displaying a three-dimensional image of shallow stratum profile data in real time. The method comprises the following steps: transmitting a sound wave signal to a to-be-measured target, and collecting the sound wave signal reflected by the to-be-measured target to obtain a single-frame echo signal; and performing signal processing according to the echo signal to obtain shallow stratum profile data, performing beam mapping on the shallow stratum profile data, mapping the data into a three-dimensional coordinate system to obtain drawing data of a three-dimensional acquisition image, and further updating the three-dimensional acquisition image under the current frame in real time. According to the shallow stratum profile equipment based on the emission phased array principle, shallow stratum profile data of an area are rapidly acquired by continuously scanning the bottom at different angles, and a three-dimensional seabed sediment image of a current measurement ...

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04-08-2023 дата публикации

Display device and inter-process communication method

Номер: CN116546235A
Автор: ZHU RUILIANG, REN FEI
Принадлежит:

The invention provides a display device and an inter-process communication method, when a client belonging to a first process and a second process in the display device performs data transmission with a server, the server firstly stores media data in an anonymous memory to avoid direct transmission of media data with large data volume to the client, but adopts a Binder communication mechanism, so that the data transmission efficiency is improved. And transmitting the address information to the client through the shared memory so as to indicate the storage position of the media data in the anonymous memory to the client through the address information. And the client can directly obtain the data to be displayed from the anonymous memory according to the address information. Through the inter-process communication method, direct transmission of media data with a large data size between the client and the server can be avoided, so that the data transmission time is saved, and the transmission ...

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30-06-2023 дата публикации

Ship draft calculation method and system

Номер: CN116353785A
Принадлежит:

The invention relates to the technical field of ship draft calculation, and provides a ship draft calculation method which is used for calculating the draft of an inland river bulk cargo ship by using side-scan sonar. Comprising the following steps that S1, a side-scan sonar is installed at the bottom of one side of a navigation channel, and the side-scan sonar continuously emits sound beams to the water surface for 24 hours; s2, when the side-scan sonar receives a strong echo signal generated by a ship body on the sound wave beam, judging that a ship target appears; and S3, according to the sonar data received by the side-scan sonar, finding the strong reflection signal of the intersection point of the ship body and the water surface and the sampling point position of the strong reflection signal of the bilge, and calculating the draft value of the ship body by combining the installation depth of the side-scan sonar.

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02-06-2023 дата публикации

Supply chain emergency response method and device based on event network and electronic equipment

Номер: CN116205570A
Автор: LIU ZHEN, REN FEI, YE LIWEN
Принадлежит:

The invention provides a supply chain emergency response method and device based on an event network and electronic equipment, and relates to the technical field of computers.The method comprises the steps that firstly, the supply chain event network is determined, the supply chain event network comprises a plurality of supply nodes, and each supply node corresponds to service event data; then determining external factor data, acting the external factor data in the current supply chain event network, and predicting the service event data of the supply node; determining whether a first supply node in the plurality of supply nodes accords with expectation or not based on the predicted service event data of the supply nodes; and if not, determining a second supply node meeting the expectation, and optimizing the first supply node based on the second supply node. According to the method, the emergency response management of the supply chain is realized, the technical problems of low supply ...

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02-05-2023 дата публикации

Edge protection plate monitoring assembly of mining working face and deformation monitoring method

Номер: CN116045794A
Принадлежит:

The invention relates to the field of face guard safety monitoring, in particular to a face guard monitoring assembly of a mining working face and a deformation monitoring method.The face guard monitoring assembly comprises a face guard body and a linear monitor arranged on the surface of the face guard body, the linear monitor comprises a wire shell and a connecting assembly, and a sliding cavity is formed in one end of the wire shell; the connecting assembly is in linear sliding insertion connection with the sliding cavity, the far end of the wire shell and the far end of the connecting assembly are connected with the surface of the side protection plate body through connecting pieces, the inner wall of the sliding cavity is provided with aligned conducting strips, and the end of the connecting assembly is provided with a conductor piece. When the face guard body deforms, the distance between the two connecting points is reduced, the length of the connecting assembly inserted into the ...

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07-07-2023 дата публикации

Accurate angle control method of small-angle measuring instrument calibration device

Номер: CN116399282A
Принадлежит:

According to the angle accurate control method of the small-angle measuring instrument calibration device, by means of an angle accurate control mechanism composed of a measuring arm, a measuring arm rotating shaft, a wedge-shaped push block, a sliding table, a lead screw nut transmission unit, a stepping motor and a spring ejector rod assembly, accurate control over the rotating angle of the measuring arm is achieved through control over the stepping angle of the stepping motor, and the angle accuracy of the small-angle measuring instrument calibration device is improved. Comprising the following steps: a, calculating a stepping angle value n of a stepping motor according to a set rotating angle alpha of a measuring arm; and b, starting the stepping motor, and controlling the rotation angle of the stepping motor to be the stepping angle value n calculated in the step a. The calibration precision requirement of the small-angle measuring instrument is met, and the purposes of reducing the ...

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14-07-2023 дата публикации

Floating ball valve with overpressure protection function

Номер: CN116428382A
Принадлежит:

The floating ball valve with the overpressure protection function comprises a valve body, a valve element, a valve rod, a valve seat, filler, a gland, a wrench, an overpressure protection assembly and a drainage assembly, the valve element is rotationally connected with the valve seat, the valve element is fixedly connected with the valve rod, the valve seat is clamped with the valve body, the filler is connected with the valve body in a sealed mode, and the valve rod is rotationally connected with the filler. The gland is in fastening connection with the valve body, the wrench is in fastening connection with the valve rod, the overpressure protection assembly is in fastening connection with the valve body, the overpressure protection assembly comprises a pressure relief device, a pipeline, a retainer and a backflow device, the pressure relief device is in fastening connection with the pipeline, the retainer is in fastening connection with the valve body, the backflow device is arranged ...

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25-04-2023 дата публикации

Supply cost analysis method and system based on event network, and electronic equipment

Номер: CN116012038A
Автор: LIU ZHEN, REN FEI, YE LIWEN
Принадлежит:

The invention provides a supply cost analysis method and system based on an event network and electronic equipment, and relates to the technical field of computers, and the method comprises the steps: determining the total cost of a first type of supply chain nodes predicted by a production shutdown model; the production shutdown model is constructed in advance based on an event network and is used for predicting the cost of equipment replacement of the first type of supply chain nodes; the first type of supply chain nodes are production nodes; determining the total delivery cost of the supply chain predicted by the warehouse network model based on the total cost of the first type of supply chain nodes; the warehouse net model is pre-constructed based on an event net and is used for predicting the delivery cost of each node of the supply chain; and obtaining the total cost of the first type of supply chain nodes and the delivery cost of each node of the supply chain, and generating an analysis ...

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25-08-2023 дата публикации

Wafer-level packaging process meeting electromagnetic compatibility requirement

Номер: CN116646255A
Принадлежит:

The invention relates to the technical field of semiconductor packaging, and discloses a wafer level packaging technology meeting the electromagnetic compatibility requirement, a film pasting, cutting and electroplating all-in-one machine comprises a mounting rack, one side of the mounting rack is fixedly connected with a first motor, and the other side of the mounting rack is fixedly connected with a second motor; according to the wafer-level packaging technology meeting the electromagnetic compatibility requirement, through cooperation of the material clamping mechanism and the material supply mechanism and flexible extrusion of the extrusion taking and placing mechanism, the wafer-level packaging technology meets the electromagnetic compatibility requirement, the material clamping mechanism and the material supply mechanism are matched with each other, and the material clamping mechanism and the material supply mechanism are matched with each other; therefore, stable and firm attachment ...

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01-08-2023 дата публикации

Control method for multi-oil-cylinder hydraulic jacking system of tower crane

Номер: CN116513992A
Автор: MI CHENGHONG, AN JIAN, REN FEI
Принадлежит:

The invention discloses a control method for a multi-oil-cylinder hydraulic jacking system of a tower crane, which is characterized in that eight oil cylinders are arranged on the front side and the rear side of a jacking cross beam of the tower crane, the eight oil cylinders are respectively arranged at four corners of a sleeve frame, and two oil cylinders arranged at each corner of the sleeve frame are used as an oil cylinder group; the method specifically comprises the steps that each oil cylinder set is provided with a pull rope displacement sensor, the stroke of each oil cylinder is detected in real time, the opening degree of an oil supply proportional valve of each oil cylinder set is adjusted through a PID module, and synchronous jacking of multiple oil cylinders is achieved according to the stroke of a target oil cylinder set and following and dynamic deviation correction of other oil cylinder sets. The stroke of the oil cylinder group, the pressure of the oil cylinder, the oil ...

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25-04-2023 дата публикации

Human body trajectory tracking detection method based on millimeter wave radar

Номер: CN116008936A
Принадлежит:

The invention discloses a human body trajectory tracking detection method based on a millimeter wave radar, and relates to the technical field of millimeter wave radar detection. The method comprises the following steps that a detection algorithm is adopted for the millimeter wave radar, and human body related information is obtained by processing echo signals; predicting the human body position by adopting a Kalman filtering algorithm to obtain a predicted target position at the next moment; matching the human body position detected at the next moment with the position, predicted by the existing human body movement track, at the next moment by adopting a global nearest neighbor algorithm; and updating the matched human body track information and correcting the current estimated human body position. The human body target is detected by the millimeter wave radar, statistical analysis is performed, related information is extracted, human body trajectory tracking detection precision is improved ...

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18-04-2023 дата публикации

Aperture-variable colloidal body and preparation method thereof

Номер: CN115970603A
Принадлежит:

The invention discloses a colloid with variable aperture and a preparation method thereof, the preparation method comprises the steps of nano particle modification, amphiphilic nano particle preparation, variable aperture colloid preparation and the like, each step is specifically set, so that the finally prepared colloid is stable and has variable aperture; the hydrophobic polymer chain in the cavity of the colloidal body can generate corresponding collapsing and stretching forms in different water/oil medium environments to close or expose holes, so that the application requirements in selective medium transmission are met.

Подробнее
28-07-2023 дата публикации

Reservoir, warehouse and lake integrated data management and control platform

Номер: CN116501788A
Принадлежит:

The invention, which belongs to the technical field of data management, discloses a warehouse-lake integrated data management and control platform comprising a construction module, an association module, an evaluation module and a management module. The construction module is used for establishing a construction model based on business types; the association module is used for performing association analysis on each data, endowing each data with a corresponding internal association label, marking the data marked with the same internal association label as branch classification data, endowing each branch classification data with a corresponding external association label based on a corresponding construction model, and generating a venation model based on the construction model and the corresponding branch classification; through mutual cooperation of the construction module, the association module, the evaluation module and the management module, comprehensive management of various data ...

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13-08-2021 дата публикации

Network coverage data determination method and device, equipment, medium and product

Номер: CN113259947A
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The embodiment of the invention provides a network coverage data determination method and device, equipment, a medium and a product. The method comprises the following steps: determining a target network coverage simulation model corresponding to a linear target object; acquiring longitude and latitude information of each observation point in the linear target object; and inputting the longitude and latitude information into a target network coverage simulation model to determine network coverage data corresponding to each observation point according to the longitude and latitude information through the target network coverage simulation model, and outputting the network coverage data. According to the network coverage data determination method provided by the embodiment of the invention, the network coverage data of each observation point of the linear target object can be determined through the longitude and latitude information of each observation point in the linear target object and ...

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11-04-2023 дата публикации

Control method for timed pouring of defrosting water of air curtain cabinet

Номер: CN115950137A
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The invention belongs to the technical field of refrigeration equipment, and particularly relates to a control method for timed pouring of defrosting water of an air curtain cabinet. The method comprises the steps that a lifting type air return baffle is arranged on the outer side of an air return opening of the air curtain cabinet, and a weight sensor is arranged below a water receiving box; a defrosting water dumping period and a defrosting water weight threshold value in each dumping period are preset in the control system, and a plurality of monitoring time points are set in each dumping period; firstly, the lifting type air return baffle is moved to a preset reference height; then a timer is started to time the dumping period, the actual weight of the defrosting water is read at each monitoring time point to be compared with the theoretical weight of the defrosting water, and the actual weight periodic change rate and the theoretical weight periodic change rate of the defrosting water ...

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21-07-2023 дата публикации

Display device and audio and video data decoding and coding method

Номер: CN116471369A
Автор: REN FEI, ZHU RUILIANG
Принадлежит:

The invention provides a display device and an audio and video data decoding and coding method, a user performs a video conference with a remote terminal device through a video conference App installed in the display device, and a hardware chip of the display device provides a hardware channel for processing audio and video data. And the video conference App is used for providing a software path for processing audio and video data. And the display equipment distributes paths for the received far-end audio and video data through centralized management and control of a hardware path and a software path. Wherein when the idle hardware path exists, the idle hardware path is preferentially allocated to the far-end audio and video data. Therefore, a hardware channel can be fully utilized to carry out hard decoding on the far-end audio and video data so as to improve the decoding quality. Meanwhile, when the local audio and video data are coded, hard coding can be carried out on the local audio ...

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25-07-2023 дата публикации

Method for grading participation of virtual power plants of public building in flexible peak regulation of power grid

Номер: CN116488146A
Принадлежит:

The invention discloses a method for a public building virtual power plant to participate in power grid flexible peak regulation in a grading mode, and relates to the technical field of virtual power plant participation in power grid dispatching, the method for the public building virtual power plant to participate in power grid flexible peak regulation in a grading mode comprises the following operation steps: S1, public building function positioning; s2, building air conditioner data are recorded; s3, flexible peak regulation of the single public building; s4, flexible peak regulation between public buildings; and S5, building control terminals and area control terminals. According to the method, the temperature and humidity data of each area are ensured to be within the preset threshold value when the minimum number of air conditioning units work at the lowest power, and the other air conditioning units are in the dormant state, so that the load of a power grid is reduced, and the compression ...

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14-07-2023 дата публикации

Biomass flame retardant with core-shell structure as well as preparation method and application of biomass flame retardant

Номер: CN116425987A
Принадлежит:

The invention provides a biomass flame retardant with a core-shell structure as well as a preparation method and application thereof, the biomass flame retardant with the core-shell structure takes an MOFs material as a core, takes a silane coupling agent and a biomass material as double shell layers, the MOFs flame retardant and the silane coupling agent are directly connected through a hydrogen bond and an ionic bond/chemical bond, and the biomass flame retardant and silane are directly connected through a hydrogen bond and an ionic bond/chemical bond. The silane coupling agent is adsorbed on the surface of the MOFs flame retardant after being hydrolyzed, and-OH of the silane coupling agent after hydrolysis is connected with-NH2 of the MOFs-NH2 through a hydrogen bond; the second coating layer is a biomass material phytic acid coating layer and forms ionic bond/chemical bond connection with a functional group of silane through phytic acid. The core-shell structure flame retardant relates ...

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25-08-2023 дата публикации

Thickening agent for emulsion type fracturing fluid as well as preparation method and application of thickening agent

Номер: CN116640565A
Принадлежит:

The invention relates to the technical field of oilfield chemical reagents, in particular to a thickening agent for emulsion type fracturing fluid as well as a preparation method and application of the thickening agent. The specific raw materials are used for preparing the high-molecular polymer, and the nano-sized cellulose component is matched, so that the thickening performance and the shear resistance of the thickening agent are improved. The components are scientifically and reasonably compounded, and the thickening agent is excellent in storage stability, does not need to be prepared and used immediately, and has better use convenience. The Tween component is added as a synergist, so that the thickening effect of the reagent is further improved, the dissolving speed of the thickening agent is accelerated, and the time required for preparing the fracturing fluid is shortened.

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30-05-2023 дата публикации

Light-emitting diode epitaxial structure capable of improving current transport capability and preparation method of light-emitting diode epitaxial structure

Номер: CN116190512A
Принадлежит:

The invention discloses a light-emitting diode epitaxial structure for improving current transport capability and a preparation method thereof. The light-emitting diode epitaxial structure comprises an epitaxial layer, a light-emitting diode epitaxial layer, a light-emitting diode epitaxial layer and a light-emitting diode epitaxial layer, the light-emitting diode specifically comprises a buffer layer, a gallium nitride nucleating layer, an epitaxial layer I, an n-type gallium nitride layer, an epitaxial layer II, a shallow quantum well layer, a multi-quantum well light-emitting layer, an electron blocking layer and a p-type gallium nitride layer. The first epitaxial layer comprises a superlattice structure composed of aluminum nitride/aluminum gallium nitride/gallium nitride. The second epitaxial layer comprises a superlattice structure composed of silicon nitride/n-type aluminum gallium nitride. The first epitaxial layer and the second epitaxial layer are arranged on the two sides of ...

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07-04-2023 дата публикации

Subway carriage congestion degree distribution detection method and equipment based on braking process

Номер: CN115923872A
Принадлежит:

The invention relates to the field of rail transit, in particular to a subway carriage congestion degree distribution detection method and equipment based on the braking process. The distributed detection method comprises the steps that current train operation state parameters are obtained, and equivalent braking force generated by all generators is calculated; obtaining a pull/pressure value between the carriages in the constant deceleration electric braking process when the train enters the station, and calculating the total weight of the carriages in combination with the obtained equivalent braking force and the current braking deceleration of the train; calculating the number of people in each compartment according to the obtained total weight of each compartment; and obtaining subway carriage congestion degree distribution according to the number of people in each carriage. The method provides a new thought for subway carriage congestion degree distribution detection, and provides ...

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15-08-2023 дата публикации

Large thin-wall deep-cavity high-strength steel coal machine bucket tooth hammer upper die forging method

Номер: CN116586545A
Принадлежит:

The invention relates to an on-hammer die forging method for a large thin-wall deep-cavity high-strength steel coal machine bucket tooth, and solves the problems of poor density, short product service life and high production cost of an internal structure in current casting production compared with a forge piece. The method comprises the following steps: (1) smelting small-batch cast ingots, performing riser cutting and forging modification on the cast ingots, performing annealing or normalizing treatment on the blanks, and after the hardness is reduced, manufacturing the blanks into products with specifications required by forging and completing accurate blanking; (2) the parting surface of the hammer forging die is designed at the uppermost end of the product; and (3) the heating time is smaller than or equal to 150 min, the heating temperature ranges from 1160 DEG C to 1220 DEG C, the allowable retention time at the initial forging temperature is smaller than or equal to 90 min, oxide ...

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