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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 14. Отображено 14.
16-05-2023 дата публикации

Radar target scattering center region segmentation method based on local density clustering

Номер: CN116129159A
Автор: ZENG SHUGUANG, HU CHENGXIN, ZHENG SHENG, LUO ZHIHUI, HUANG YAO, ZENG XIANGYUN
Принадлежит:

The invention discloses a radar target scattering center region segmentation method based on local density clustering, and the method comprises the steps: carrying out the Frost filtering of an original radar image, and achieving the global noise suppression of the image; secondly, based on a level set method, carrying out image segmentation on the image after Fost filtering, and preliminarily obtaining a suspected target region of interest; then, extracting a maximum connected domain by adopting area filtering to obtain a target region of interest; and finally, detecting a scattering center by using a local density clustering algorithm and carrying out region segmentation. The radar target scattering center area segmentation method based on local density clustering is high in accuracy, and can effectively solve the technical problem that the SAR image is difficult to have enough high resolution in the actual situation, so that the traditional image segmentation algorithm is difficult to ...

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Номер записи: 1
18-04-2023 дата публикации

Irregular object density measuring device and method based on ideal gas state equation

Номер: CN115979890A
Автор: ZENG SHUGUANG, KIM HAN-LAK, WANG CHENG, DENG WANGHONG, LUO ZHIHUI
Принадлежит:

The invention discloses an irregular object density measurement device and method based on an ideal gas state equation, and the device comprises a sealed space structure which is provided with a spiral propeller, and is internally provided with a first single-chip microcomputer module, a signal transmitting module and an environment data collection module. The environment data acquisition module is used for acquiring pressure data and temperature data in the closed space structure. The first single-chip microcomputer module is connected with the signal emission module and the environment data acquisition module. The second single-chip microcomputer module is arranged outside the closed space structure and connected with the signal receiving module, the pressure detection module, the key module and the display module. The density device is high in cost performance, the measurement method meets theoretical requirements, and standardization of the density measurement method and portability ...

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Номер записи: 2
11-08-2023 дата публикации

Segmented acquisition device and method for long-distance ultra-weak fiber grating array

Номер: CN116576896A
Автор: LUO ZHIHUI, XIANG HAO, GAO JIE, WANG XIAOLONG, XU BING
Принадлежит:

The invention discloses a segmented acquisition device and method for a long-distance ultra-weak fiber grating array. The segmented acquisition device comprises a tunable laser, a front erbium-doped fiber amplifier and a rear erbium-doped fiber amplifier, the tunable laser is connected with the semiconductor laser amplifier, the semiconductor laser amplifier is connected with the front erbium-doped fiber amplifier, the front erbium-doped fiber amplifier is connected with a first port of the circulator, and a second port of the circulator is connected with the ultra-weak fiber grating array; the ultra-weak fiber grating array is connected to the optical fiber amplifier; a third port of the circulator is connected with a rear erbium-doped optical fiber amplifier, the rear erbium-doped optical fiber amplifier is connected with a photoelectric detector, the photoelectric detector is connected with an embedded system, and the embedded system is connected with a PC; the embedded system is connected ...

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Номер записи: 3
19-06-2014 дата публикации

TRICHODERMA ASPERELLUM STRAIN GY20 AND PASTE PREPARATION FOR PREVENTING AND TREATING FUSARIUM OXYSPORUM SCHL. F. SP. FRAGARIAE

Номер: WO2014089951A1
Автор: LI, Nan, ZHANG, Haijun, LUO, Zhihui, LIU, Mulan, LI, Hui
Принадлежит:

The present invention relates to a Trichoderma asperellum strain GY20 and a paste preparation prepared from the strain and used for preventing and treating Fusarium oxysporum Schl. f. sp. fragariae. The Latin name thereof is Trichoderma asperellum, and the strain has been deposited in the China General Microbiological Culture Collection Center, with the deposit number CGMCC NO. 4899. A biopesticide composition in the paste dosage form of the present invention consists of a pesticide component and an adjuvant, the pesticide component is mycelia and chlamydospores of the Trichoderma asperellum, and the Trichoderma asperellum chlamydospores are dispersed in the Trichoderma asperellum mycelia. The greatest advantage of the composition of the present invention and the biopesticide in the paste dosage form prepared by this method is their stable product quality, as they can be preserved for 18 months at room temperature and for 3 years under refrigerated conditions, and the strain has a good ...

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Номер записи: 4
04-07-2023 дата публикации

Colorimetric method miRNA sensor based on graphene oxide coated gold nanoparticles, material and application thereof

Номер: CN116377030A
Автор: XU BING, XIANG XIAOYING, DING LIYUN, PAN ZHIHONG, LUO ZHIHUI, ZENG SHUGUANG
Принадлежит:

The invention discloses a colorimetric method miRNA sensor based on graphene oxide coated gold nanoparticles, a material and application of the colorimetric method miRNA sensor. GO-AuNPs composite particles are prepared on the basis of electrostatic interaction, the LSPR effect of the composite particles can be amplified through graphene oxide, and the sensitivity and stability of the sensor are improved. When the RNA probe fixed on the surfaces of the graphene oxide-gold nano composite particles and target RNA are subjected to sandwich hybridization reaction, the distance between GO-AuNPs particles is reduced, the local surface plasma effect of the particles is influenced, the local surface plasma peak position changes, and the color of the solution is changed from red to purple. The qualitative detection of the target miRNA can be realized by observing the color change with naked eyes; based on the LSPR effect of the composite material, the miRNA is quantitatively detected by combining ...

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Номер записи: 5
04-07-2023 дата публикации

Distributed microphone array device based on ultra-weak fiber bragg grating

Номер: CN116390004A
Автор: LUO ZHIHUI, LU BO, DING SHUAI, XU BING, HUANG JIANGLOU
Принадлежит:

The distributed microphone array device based on the ultra-weak fiber bragg grating comprises an optical fiber microphone array and an acousto-optic demodulation unit, the optical fiber microphone array is formed by tightly winding an ultra-weak fiber bragg grating sensor to a sound sensitization structure of a thin-wall cylinder and covering the surface with an adhesive, and the optical fiber microphone array is used for acquiring a sound pressure signal; a plurality of optical fiber microphones are connected in series to form an optical fiber microphone array; the acousto-optic demodulation unit demodulates the phase change of the reflected light wave signal of the optical fiber microphone array to invert the sound pressure change; and the data processing and display unit processes and displays the signals acquired by the acousto-optic demodulation unit in real time. Based on the characteristics of high sensitivity performance of the ultra-weak fiber bragg grating microphone and low reflectivity ...

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Номер записи: 6
09-05-2023 дата публикации

Optical fiber LSPR SARS-CoV-2 sensor based on triangular gold nanosheets and preparation method and application of optical fiber LSPR SARS-CoV-2 sensor

Номер: CN116087153A
Автор: XU BING, XIANG XIAOYING, LI YAN, LUO ZHIHUI, HUANG JIANGLOU
Принадлежит:

The invention provides an optical fiber LSPR SARS-CoV-2 sensor based on a triangular gold nanosheet and a preparation method and application thereof, the sensor comprises an optical fiber probe, the surface of the probe is provided with a triangular gold nanosheet layer, and the surface of the triangular gold nanosheet is also provided with an SARS-CoV-2 antibody layer. When an SARS-CoV-2 antibody fixed on the surface of the optical fiber probe is specifically combined with an SARS-CoV-2 antigen of a target detection object, the effective refractive index of an optical fiber sensing area is slightly changed, the LSPR (Local Surface Plasmon Resonance) effect of the triangular gold nanosheet is influenced, and the peak position of the triangular gold nanosheet is shifted. The optical fiber sensor has high sensitivity; quick response is realized; no damage is caused; the specificity is high, and the huge SARS-CoV-2 virus detection potential is achieved.

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Номер записи: 7
11-08-2023 дата публикации

Multi-source vibration signal separation method based on distributed optical fiber acoustic wave sensing

Номер: CN116576956A
Автор: LUO ZHIHUI, YANG ZHEN, HUANG JIANGLOU, RAN CHANGYAN
Принадлежит:

A multi-source vibration signal separation method based on distributed optical fiber sound wave sensing comprises the steps that different types of single-source vibration signals are collected through a DAS and then linearly mixed, and a mixed signal data set with different mixed source numbers is constructed; reading data in the mixed signal data set, performing denoising and slicing processing on the signals, and extracting effective event segments; constructing a Conv-TasNet network model, and performing offline training by using the mixed signals of different mixed source numbers to obtain a separation model for the mixed signals of different mixed source numbers; estimating the mixed source number of the mixed signal in the data set by using a source number estimation algorithm; and selecting a separation model corresponding to the source number to separate the mixed signal according to the estimated mixed source number. According to the method, a source number estimation algorithm ...

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Номер записи: 8
04-07-2023 дата публикации

Liquid pesticide proportioning and mixing device and use method thereof

Номер: CN116371239A
Автор: LIU MULAN, LUO ZHIHUI, ZHU TINGTING
Принадлежит:

The invention discloses a liquid pesticide proportioning and mixing device and a using method thereof.The liquid pesticide proportioning and mixing device comprises a tank body and a motor installed on the top wall of the tank body, the output end of the motor is connected with a rotating shaft extending into the tank body, a stirring mechanism is arranged at the bottom of the rotating shaft, and an extraction mechanism is arranged on one side of the stirring mechanism; and the shifting mechanism comprises a worm gear fixed at the bottom of the rotating shaft. A motor drives a first stirring rod, a second stirring rod, a worm, a spiral blade and a cam to rotate at the same time, so that liquid medicine in a tank body rotates with a rotating shaft as the center and also rotates with the worm as the center, extraction and replacement of bottom-layer liquid medicine and upper-layer liquid medicine are completed, meanwhile, the liquid medicine is sprayed and beaten on a vertical plate, and ...

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Номер записи: 9
23-05-2023 дата публикации

Batching device for pesticide processing and use method thereof

Номер: CN116139749A
Автор: LUO ZHIHUI, LIU MULAN, TENG LIANG
Принадлежит:

The invention discloses a pesticide processing batching device and a use method thereof, the pesticide processing batching device comprises a mixing tank body, the lower surface of the mixing tank body is provided with a support, the mixing tank body is provided with a batching mechanism for feeding materials to the inner side of the mixing tank body, and the inner side of the mixing tank body is provided with a stirring mechanism for mixing the materials; the batching mechanism comprises at least two batching tanks, a discharge pipe, a weighing tank, a weighing sensor, a guide pipe and a second electromagnetic valve; the mixing tank body is provided with at least two batching tanks; by arranging the batching tank, the discharging pipe, the weighing tank, the weighing sensor, the material guiding pipe and a second electromagnetic valve, the situation that manual work needs to conduct additional measurement and then conduct successive adding is avoided, various materials can be placed on ...

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Номер записи: 10
27-07-2016 дата публикации

A sound magnetism dual -power driving device for magnetism nanometer motor

Номер: CN0205407626U
Автор: LIU MIN, PAN LIQING, PIAO HONGGUANG, YANG XIANWEI, LUO ZHIHUI, ZHENG SHENG, LIU YIMAN
Принадлежит:

... 种用于磁纳米马达的声磁双动力驱动装置，包括底部固定支座，底部固定支座上固定安装有内部支撑固定组件；上支撑固定盘顶部固定安装有载物平台；载物平台中，平台体中央开设有载物圆孔，载物圆孔下方的平台体内填充有超声诱导层，超声诱导层中埋设有压电陶瓷换能片。本实用新型提供的种用于磁纳米马达的声磁双动力驱动装置，可以解决纳米马达研究领域无成熟驱动装置的问题，设计了种利用磁场及超声场联合驱动磁性纳米马达的磁声双动力驱动装置，提高了磁性纳米马达的环境适应性与可操控性。 ...

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Номер записи: 11
30-05-2023 дата публикации

Ultra-weak fiber grating carbon fiber reinforcing rib

Номер: CN116184587A
Автор: LUO ZHIHUI, LIU KE, HUANG JIANGLOU, CAI DESUO, SHI WEI, HUANG DESHENG
Принадлежит:

An ultra-weak fiber bragg grating carbon fiber reinforcing rib comprises an optical fiber inscribed with a plurality of ultra-weak fiber bragg grating sensing units, the optical fiber is pre-coated with a high-temperature-resistant coating, and the optical fiber is arranged in a carbon fiber rib to form the ultra-weak fiber bragg grating carbon fiber reinforcing rib. The end part of the optical fiber is provided with a metal spiral armor, and the metal spiral armor partially extends into the carbon fiber rib. According to the ultra-weak fiber bragg grating carbon fiber reinforcing rib, the creep deformation influence of an inner coating in a traditional optical fiber is avoided, and spectrum chirp or distortion generated when the reinforcing rib is manufactured is reduced or eliminated. The reinforcing rib integrates the excellent performance of the carbon fiber, and has the advantages of high strength, large strain range, good repeatability, easiness in fusion with a large-scale structure ...

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Номер записи: 12
26-05-2023 дата публикации

Multi-parameter detection system and method based on dense fiber bragg grating

Номер: CN116164858A
Автор: LUO ZHIHUI, WANG BAOCHANG, LU BO, YANG ZHEN, HUANG JIANGLOU, XU BING, TAN CHAO
Принадлежит:

The invention discloses a multi-parameter detection system and method based on dense fiber bragg gratings. The system comprises a tunable scanning laser and a signal processing and control unit, the tunable scanning laser is connected with the semiconductor electro-optical modulator, the semiconductor electro-optical modulator is connected with the first erbium-doped fiber amplifier, the first erbium-doped fiber amplifier is connected with the first circulator, the first circulator is connected with the dense ultra-weak fiber grating array, and the first circulator is connected with the light distribution unit. The light distribution unit is respectively connected with the reflected light detection unit and the matching interferometer, the matching interferometer is connected with the reflected light detection unit, and the reflected light detection unit is connected with the signal processing and control unit; the signal processing and control unit is connected with the tunable scanning ...

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Номер записи: 13
30-06-2023 дата публикации

Cast-in-place pile online monitoring system and method based on ultra-weak fiber bragg grating

Номер: CN116358434A
Автор: LUO ZHIHUI, WANG XIAOLONG, XU BING, HUANG JIANGLOU, TAN CHAO, CAI DESUO
Принадлежит:

The invention discloses a cast-in-place pile on-line monitoring system and method based on an ultra-weak fiber bragg grating, and the system comprises an ultra-weak fiber bragg grating optical cable which is internally provided with an ultra-weak fiber bragg grating array in an inscribing manner, and is provided with a plurality of fixed points at equal intervals. The ultra-weak fiber bragg grating optical cable is fixed on a reinforcement cage of a tested cast-in-place pile through a fixed point, the ultra-weak fiber bragg grating optical cable is connected with the ultra-weak fiber bragg grating demodulation module, and the ultra-weak fiber bragg grating demodulation module is wirelessly connected with the cloud server. The ultra-weak fiber bragg grating uwFBG is introduced into pile foundation strain monitoring, the cast-in-place pile online monitoring system and method based on the ultra-weak fiber bragg grating are provided, the monitoring capacity of a pile foundation sensing system ...

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Номер записи: 14