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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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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 13. Отображено 13.
23-06-2023 дата публикации

Ship subsystem state analysis method and device and storage medium

Номер: CN116311594A
Автор: YU XIANG, XIAO JIANBO, YAN WEIDONG, LOU JINGJUN, HU SHIFENG, ZHANG ZHENHAI, LIU JIEFENG, XIE HAIYAN
Принадлежит:

The invention discloses a ship subsystem state analysis method and device and a storage medium, and the analysis method comprises the following steps: collecting the current operation parameter data of each device in a sampling interval, and calculating to obtain a single parameter overrun frequency; calculating the average value of each parameter in the current operation parameter data in the sampling interval, constructing the current operation parameter sequence of each device based on the average value, and calculating the similarity and deviation degree of the current operation parameter sequence and the healthy operation parameter sequence of each device; judging whether the single parameter overrun frequency of each device is greater than a single parameter overrun frequency threshold value, whether the similarity is smaller than a similarity threshold value or whether the deviation degree is greater than a deviation degree threshold value, and if not, calculating the current operation ...

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Номер записи: 1
11-04-2023 дата публикации

Bionic liposome nanoreactor, preparation method and application thereof

Номер: CN115944589A
Автор: XIE HAIYAN, LEI YAO, OH WOO-SOO, WU GUANGHAO, NIE WEIDONG, HUANG LILI
Принадлежит:

The invention provides a bionic lipidosome nanoreactor as well as a preparation method and application thereof, and relates to the technical field of biomedical engineering. The bionic liposome nanoreactor comprises a liposome, a thylakoid membrane fragment and an electron donor. According to the invention, a thylakoid fragment (Tk) is integrated into a liposome (Lip), and an electron donor is loaded into the liposome, so that the bionic liposome nano reactor is prepared. The bionic liposome nanoreactor can be taken in by renal epithelial cells to catalyze generation of NAD < + >; under ultrasonic driving, a large number of electrons are transferred to cytoplasm by an electron transfer chain on the material, NAD < + > is reduced into NADH, generation of ATP is promoted, and AKI is rapidly relieved in the early stage. Besides, in the presence of electrons, NADPH is effectively generated, oxidative stress of ROS and the like is fundamentally prevented, and development from AKI to CKD can ...

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Номер записи: 2
08-08-2023 дата публикации

Security negotiation method, device and system for shared key, equipment and medium

Номер: CN116566598A
Автор: HUANG TIANJUN, SONG ZHIGANG, ZHAO XU, GAN JIE, LI DEJIAN, XIE HAIYAN, ZHANG YUBING
Принадлежит:

The embodiment of the invention discloses a security negotiation method, device, system and equipment for a shared key and a medium, and the method comprises the steps: generating a first random number, and transmitting the first random number; acquiring a first parameter according to the private key of the initiating end and the public key sent by the responding end; acquiring a third parameter according to the first random number, the first parameter, a second random number sent by the response end and a preset shared password; acquiring a first verification parameter according to a fourth random number sent by the response end, the public key of the initiating end, the public key of the response end and a third parameter; and when the first verification parameter is the same as a sixth parameter sent by the response end, negotiating the shared key with the response end. The security of the shared key negotiation is guaranteed by adding the verification process of the opposite terminal ...

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Номер записи: 3
18-07-2023 дата публикации

Phase estimation method and device between OFDM symbols, equipment and medium

Номер: CN116455720A
Автор: ZHAO YAHONG, WU JUN, LEE JEONG-HO, ZHAO XU, ZHANG YUBING, XIE HAIYAN, GAN JIE, XU XIA
Принадлежит:

The embodiment of the invention discloses a phase estimation method and device between OFDM (Orthogonal Frequency Division Multiplexing) symbols, equipment and a medium, and relates to the technical field of communication. The method comprises the following steps: determining four adjacent target pilot frequency OFDM symbols in a plurality of pilot frequency OFDM symbols of two adjacent discrete pilot frequency periods, wherein the four target pilot frequency OFDM symbols are distributed in two pilot frequency discrete periods, the pilot frequency insertion moments of the four target pilot frequency OFDM symbols are sequentially arranged, and the duration between the earliest pilot frequency insertion moment and the latest pilot frequency insertion moment is smaller than or equal to the period duration of the discrete pilot frequency periods; corresponding four target pilot frequency subcarrier groups; according to the four adjacent target pilot frequency OFDM symbols and the four target ...

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Номер записи: 4
30-05-2023 дата публикации

Method, system and medium for analyzing airworthiness state based on state of marine subsystem

Номер: CN116186907A
Автор: XIAO JIANBO, YU XIANG, HU SHIFENG, LI HENGZHI, ZHANG ZHENHAI, XIE HAIYAN, LOU JINGJUN, LIU JIEFENG
Принадлежит:

The invention discloses a method and system for analyzing a seaworthiness state based on a marine subsystem state and a medium, and the method comprises the following steps: S1, obtaining ship navigation historical record data which comprises subsystem historical operation state data and a corresponding ship seaworthiness state; s2, selecting a group of data from ship navigation historical record data as a reference sample, acquiring current operation state data of a ship subsystem as a to-be-tested sample, forming a sample pair by the subsystem historical operation state data in the reference sample and the to-be-tested sample, and inputting the sample pair into a trained twin neural network model, obtaining two feature vectors output by the model; s3, the similarity of the two feature vectors is calculated, whether the similarity meets the threshold requirement or not is judged, if yes, the ship seaworthiness state corresponding to the to-be-detected sample is the same as the ship seaworthiness ...

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Номер записи: 5
28-04-2023 дата публикации

Cross time delay array transducer for exciting bending mode guided waves

Номер: CN116026934A
Автор: DONG HAO, WU WENJUN, LYU SONGZE, ZHOU ZONGHE, XIE HAIYAN
Принадлежит:

The invention discloses a cross time delay array transducer for exciting a bending mode guided wave, and relates to the technical field of pipeline ultrasonic guided wave losslessness, the cross time delay array transducer comprises two groups of guided wave transducer arrays of magnetostrictive patches, a plurality of transducers of each group of guided wave transducer array form an annular array and are uniformly arranged, the two sets of guided wave transducers are arranged in an array crossing mode, guided wave beams with opposite deflection angles are excited through time delay, pure single torsion-bending mode guided waves are excited in a pipeline, and each transducer comprises a metal patch, a flexible printed circuit board patch and a plurality of permanent magnets. The bending mode has the unique circumferential direction, the circumferential energy of the bending mode is focused at the fixed circumferential position, the propagation wave front of the bending mode is perpendicular ...

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Номер записи: 6
04-08-2023 дата публикации

Character recognition method and device based on relational network, equipment and medium

Номер: CN116543389A
Автор: XIAO JIANBO, YU XIANG, XIE HAIYAN, ZHANG QIAOBIN, LOU JINGJUN, LI HENGZHI, ZHANG ZHENHAI, HU SHIFENG
Принадлежит:

The invention discloses a character recognition method and device based on a relational network, equipment and a medium, and the method comprises the steps: obtaining an image of a handwritten character, and carrying out the preprocessing, and obtaining a preprocessed image data set; taking the preprocessed image data set as the input of a pre-trained relation network, and obtaining the output of the relation network; according to the output of the relational network, performing recognition post-processing by using a language model, outputting a character recognition result meeting the probability requirement as a target character, and returning a character recognition result not meeting the probability requirement to the relational network for re-recognition; the training of the relational network comprises the following steps: respectively extracting feature maps of a support set and a query set through an embedded function; performing feature map splicing and correlation score calculation ...

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Номер записи: 7
04-04-2023 дата публикации

Microbial treatment agent for garbage penetrating fluid and preparation method of microbial treatment agent

Номер: CN115893681A
Автор: XIE HAIYAN
Принадлежит:

The invention discloses a microbial treatment agent for garbage penetrating fluid and a preparation method, the treatment agent comprises a support layer and microbial agent particles on the surface of the support layer, the support layer is prepared from a carbon layer and modified resin, and the microbial agent particles are prepared from a microbial agent and a microbial agent matrix. According to the invention, by setting the components and the preparation mode of the treating agent, a support layer and a microbial agent are formed, the support layer is a spherical support layer prepared from a carbon layer and modified resin, the carbon layer is prepared by combining sheet-shaped skeletons and is wrapped by the modified resin, and pores are reduced; the carbon layer and the modified resin have relatively low density and hydrophobic characteristics, so that when the prepared treating agent is impacted by wind power or water flow, the prepared treating agent rolls over on the liquid ...

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Номер записи: 8
13-06-2023 дата публикации

Method for preparing two-dimensional graphite diyne through ball-milling-assisted reduction elimination

Номер: CN116253312A
Автор: WANG KAI, JIN ZHILIANG, XIE HAIYAN, XIANG DINGZHOU
Принадлежит:

The invention relates to a method for preparing two-dimensional graphite diyne through ball-milling-assisted reduction elimination. The method comprises the following steps: step 1, preparing graphdiyne intermediate slurry through a ball-milling method; and 2, drying and calcining the intermediate slurry obtained in the step 1 to remove impurities, and carrying out ultrasonic assistance and strong acid washing reduction elimination to obtain graphite diyne. According to the invention, tribromobenzene and hexabromobenzene are respectively adopted as phenyl raw materials to obtain corresponding structures, so that the selection range of synthetic raw materials is widened; the intermediate is reduced and eliminated by adopting ultrasonic assistance and strong acid washing to generate graphite diyne with a layered nanosheet structure, and the graphite diyne has a relatively large specific surface area and excellent physical properties. The preparation process is simple, the cost is low, the ...

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Номер записи: 9
18-07-2023 дата публикации

Data encryption method and device, data decryption method and device, equipment and medium

Номер: CN116455560A
Автор: HUANG TIANJUN, SONG ZHIGANG, ZHAO XU, GAN JIE, CHENG SONG, LI DEJIAN, XIE HAIYAN
Принадлежит:

The embodiment of the invention discloses a data encryption method and device, a data decryption method and device, equipment and a medium, and relates to the technical field of data processing. The method comprises the steps of obtaining data to be encrypted and dividing the data to be encrypted into n pieces of sub-data to be encrypted with the length of 128 bits; obtaining a first sub-parameter group of to-be-encrypted sub-data; obtaining a second sub-parameter group based on an SM4 algorithm according to the first sub-parameter group and the shared key; performing XOR operation on the first n-1 pieces of to-be-encrypted sub-data and the first n-1 second sub-parameter groups to obtain n-1 pieces of encrypted sub-data; when the nth to-be-encrypted sub-data is less than 128 bits, intercepting a third sub-parameter group with the same length as the nth to-be-encrypted sub-data from the nth second sub-parameter group; performing XOR operation on the nth to-be-encrypted sub-data and the third ...

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Номер записи: 10
09-05-2023 дата публикации

Ship subsystem operation state analysis method and system based on analytic hierarchy process

Номер: CN116089787A
Автор: YU XIANG, XIAO JIANBO, ZHANG QIAOBIN, XIE HAIYAN, YAN WEIDONG, LI HENGZHI, ZHANG ZHENHAI
Принадлежит:

The invention discloses a ship subsystem operation state analysis method and system based on an analytic hierarchy process. The method comprises the steps that all devices in a ship subsystem and monitoring factors related to all the devices are acquired; constructing a factor layer judgment matrix of each device according to the monitoring factors, and obtaining the weight of each monitoring factor to the device state; constructing an equipment layer judgment matrix according to each piece of equipment, and obtaining the weight of each piece of equipment to the state of the ship subsystem; constructing an evaluation set, calculating probabilities of four states in the monitoring data, substituting probability distribution of each state into a membership function of each state, and establishing a fuzzy evaluation matrix of each device in a factor layer; according to the fuzzy evaluation matrix of each device, combining the weight of each monitoring factor in each device to the device state ...

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Номер записи: 11
05-05-2023 дата публикации

Handwritten Chinese character recognition method and device based on prototype network, equipment and medium

Номер: CN116071764A
Автор: YU XIANG, XIAO JIANBO, XIE HAIYAN, ZHANG QIAOBIN, YAN WEIDONG, LOU JINGJUN, HU SHIFENG, LIU JIEFENG
Принадлежит:

The invention discloses a handwritten Chinese character recognition method and device based on a prototype network, equipment and a medium. The method comprises the following steps: acquiring a grayscale image of a handwritten document; segmenting Chinese characters based on the grayscale image to obtain image data of each Chinese character in the handwritten document; taking the image data of each Chinese character as the input of a pre-trained prototype network Chinese character recognition model, and obtaining the output of the prototype network Chinese character recognition model, the output being a candidate character set relative to the input Chinese character; based on a maximum posterior probability criterion, expanding each candidate character set to obtain an expanded candidate character set of each Chinese character in the handwritten document, and union the expanded candidate character set and the candidate character sets to form a new candidate character set; and taking the ...

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Номер записи: 12
30-05-2023 дата публикации

Automatic welding device capable of flexibly adjusting angle

Номер: CN116175064A
Автор: XIE HAIYAN
Принадлежит:

The invention relates to the technical field of welding equipment, in particular to an automatic welding device capable of flexibly adjusting angles, which comprises an inner support mechanism, and a welding mechanism is fixedly arranged on one side of the inner support mechanism. According to the device, second telescopic rods at the two ends of a second sliding base drive connecting blocks at the two ends to move correspondingly, rubber extrusion blocks on the two sides of each connecting block can abut against the inner walls of different oval pipes in the moving process, first piston columns in hydraulic pipes can stretch, and the hydraulic pipes are filled with hydraulic oil, so that the hydraulic pipes are not prone to falling off; the first piston rod and the second piston rod can slide in the direction of the connecting block, so that the second piston rods on the two sides can slide in the direction of the connecting block and drive the two rubber extrusion blocks to get close ...

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Номер записи: 13