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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 19. Отображено 19.
30-07-2014 дата публикации

Invisible earphone detection device and method

Номер: CN103955001A
Принадлежит:

Provided is an invisible earphone detection device and method. The invisible earphone detection device comprises a first magnetic sensor, a second magnetic sensor and a power key switch module, wherein the first magnetic sensor and the second magnetic sensor are connected with an A/D conversion module through an amplifier circuit, the A/D conversion module is connected with a master control module, the first magnetic sensor and the second magnetic sensor are connected with the master control module through an S/R setting reset circuit, and the master control module is connected with a LCD display module and a sound and light alarm module. The invisible earphone detection device is high in sensitivity, small in size, good in operability and low in misjudgment rate, and cannot interfered by an external magnetic field, a probe cannot be easily damaged by a strong magnetic field, and the invisible earphone detection device is high in reliability and easy to maintain.

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16-05-2023 дата публикации

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

Номер: CN116129159A
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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18-04-2023 дата публикации

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

Номер: CN115979890A
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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27-08-2021 дата публикации

Biopharmaceutical-based constant-temperature incubator

Номер: CN214060510U
Автор: ZENG SHUGUANG, 曾树光

The utility model provides a biopharmaceutical-based constant temperature incubator, which comprises an incubator body, a partition plate is arranged in the incubator body, first limiting structures are arranged above and below the partition plate and in the incubator body, the first limiting structures limit a second incubator body in a sliding manner, and a plurality of glass observation windows are arranged on the outer side of the second incubator body; two first connecting structures are symmetrically arranged in the middle of the inner side of the second box body, the two first connecting structures are detachably connected with a partition plate, the upper portion and the lower portion of the partition plate are each symmetrically provided with two electronic temperature induction meters, and heating lamp tubes are arranged at the four corners of the interior of the second box body. According to the utility model, the second box body is arranged, so that the second box body can be ...

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04-01-2012 дата публикации

Method for improving signal-to-noise ratio of femtosecond laser by using chirp matched optical parametric chirped pulse amplification

Номер: CN0101814689B
Принадлежит:

The invention discloses a method for improving a signal-to-noise ratio of femtosecond laser by using chirp matched optical parametric chirped pulse amplification and a device thereof, which belong to the technical field of ultra-short pulses. The method comprises the following steps of: firstly, stretching the femtosecond laser with a signal-to-noise ratio to be improved output by a femtosecond laser light source into chirp signal light; secondly, performing high magnification on a signal and performing low magnification on a noise by using the chirp matched optical parametric chirped pulse amplification so as to improve the signal-to-noise ratio of the chirp signal light; and finally, compressing the chirp signal light into femtosecond laser with a high signal-to-noise ratio by using an optical pulse compressor. The device for implementing the method comprises a femtosecond laser light source, a femtosecond laser, a first non-linear optical crystal, a second non-linear optical crystal, ...

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22-07-2009 дата публикации

Anti-tumor DNA vaccine and preparation method thereof

Номер: CN0101485888A
Принадлежит:

The invention provides an anti-tumor DNA vaccine, which is obtained by transforming pCMV-mt Hsp70-IRES- suicide genes into amphimicrobion which is friendly to human body, anaerobic bacteria which are friendly to the human body, amphimicrobion for reducing toxicity or obligate aerobes for reducing toxicity. The pCMV-mt Hsp70-IRES- suicide genes are recombinant plasmids which are formed by taking pCMV plasmids as an expression vector and tubercle bacillus heat shock protein 70 proteins and suicide genes as antigen genes, wherein the tubercle bacillus heat shock protein 70 proteins and the suicide genes are positioned on the upstream and the downstream of internal ribosome access sites in the pCMV plasmids respectively. The DNA vaccine is used for treating solid tumor and applied through local injection.

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17-02-2016 дата публикации

Make things convenient for breaker of ejection of compact

Номер: CN0205032228U
Принадлежит:

The utility model provides a make things convenient for breaker of ejection of compact, includes the box, is equipped with first broken mechanism and the broken mechanism of second in the box from top to bottom respectively, and the broken mechanism of first broken mechanism and second below is equipped with first filter screen and second filter screen respectively, and wherein, second filter screen net size is lighter than the net size of first filter screen, the box is gone up the lower extreme outward and is equipped with charge door and first discharge gate respectively. The utility model provides a pair of make things convenient for breaker of ejection of compact through setting up twice filter screen and two discharge gates, obtains the material of multiple difference when making things convenient for the ejection of compact, adapt to the demand of different engineerings.

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02-05-2012 дата публикации

Method for preparing underglaze bone china

Номер: CN0101580407B
Принадлежит:

The invention discloses a method for preparing underglaze bone china, which comprises the following production steps: preparing a bone china material into a blank; performing high temperature biscuit firing on the blank, wherein the temperature of the biscuit firing is between 1,250 and 1,280 DEG C; performing color painting on a product after the biscuit firing, wherein the pigment used by the color painting is prepared from the following compositions by weight percentage: 65 to 75 percent of colorradical and 25 to 35 percent of glaze; performing high temperature color firing on the product after the color painting, and the temperature of the color firing is between 1,200 and 1,250 DEG C; and glazing the product after the high temperature color firing with the same glaze in the pigment, and performing medium temperature glaze firing to prepare a finished product, wherein the temperature of the glaze firing is between 1,050 and 1,150 DEG C. The underglaze bone china prepared by the method ...

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04-07-2023 дата публикации

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

Номер: CN116377030A
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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13-06-2023 дата публикации

Nuclear power operation data correlation analysis method based on multi-scale time window

Номер: CN116257764A
Принадлежит:

The invention discloses a nuclear power operation data correlation analysis method based on a multi-scale time window. The method comprises the following steps: preprocessing original nuclear power operation data; state switching standards are determined, the sensors are divided into different types according to data characteristics of the different types of sensors, corresponding time windows are determined according to division of the different types of sensors, and whether state switching occurs or not is judged; selecting a target sensor, and searching a time point when state switching occurs by using a multi-scale time window; searching whether state switching occurs in the corresponding time neighborhood in the data of each sensor by using the determined time window; and calculating the matching rate of each sensor and the target sensor, and determining the relevance. According to the method, by sliding a time window, sensors are classified according to sensor data features, the matching ...

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06-06-2023 дата публикации

Gaussian mixture model nuclear power operation condition division method based on density peak value clustering

Номер: CN116226693A
Принадлежит:

A Gaussian mixture model nuclear power operation condition division method based on density peak value clustering comprises the following steps: preprocessing nuclear power operation data, mainly performing data noise reduction; performing feature extraction on the high-dimensional nuclear power operation data by using a PCA algorithm; clustering the data subjected to dimension reduction by the PCA algorithm by using a density peak clustering algorithm, and determining the number of nuclear power operation conditions through a decision diagram mode; and completing the dividing work of the nuclear power working condition under the condition of clustering the reference initial value by using a Gaussian mixture model, and realizing the visualization of the dividing result. According to the method, the defects of a traditional Gaussian mixture model can be overcome, the accuracy of working condition division is improved, and a good effect is achieved on working condition division of high-dimensional ...

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02-06-2023 дата публикации

Plant extract extraction device

Номер: CN116196649A
Автор: ZENG SHUGUANG
Принадлежит:

The invention relates to a plant extract extraction device, and belongs to the technical field of plant extracting.The plant extract extraction device comprises an extraction barrel, an extraction device body and a driving assembly, the extraction device body comprises the extraction barrel, a first mounting base, a pushing piece and a pressing head, and a steam generator is further arranged on the extraction barrel and connected with a gas guide pipe; the end, away from the steam generator, of the steam guide pipe is connected with the pressure head, the pressure head is provided with an air hole communicated with the steam guide pipe, the first installation base is installed on the upper portion of the extraction barrel, the pushing piece is installed on the first installation base and connected with the pressure head, and the extraction barrel is located below the pressure head and installed on the extraction barrel. The other end of the extraction barrel is located outside the extraction ...

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18-11-2015 дата публикации

Single fiber mai keerxun interference sensing ware and sensing system

Номер: CN0204788430U
Принадлежит:

The utility model is suitable for an optical fiber sensor technical field provides a single fiber mai keerxun interference sensing ware, including the first grating of warbling, the second of going forward at ordinary single mode fiber in proper order, inscribe the back grating of warbling, two gratings of warbling have the same reflectance spectrum, the reflectivity is less than 1% antiradar reflectivity grating. The utility model also discloses a sensing system that single fiber mai keerxun interference sensing ware, including laser lamp -house, the optical circulator, photoelectric detector takes the data collection card of AD conversion, computer signal processing. This single fiber mai keerxun interference sensing utensil has simple structure, the preparation is convenient, sensitivity is high, the configuration is nimble, anti -electromagnetic interference, corrosion -resistant and can be used to advantage such as adverse circumstances.

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25-08-2010 дата публикации

Method for improving signal-to-noise ratio of femtosecond laser by using chirp matched optical parametric chirped pulse amplification

Номер: CN0101814689A
Принадлежит:

The invention discloses a method for improving a signal-to-noise ratio of femtosecond laser by using chirp matched optical parametric chirped pulse amplification and a device thereof, which belong to the technical field of ultra-short pulses. The method comprises the following steps of: firstly, stretching the femtosecond laser with a signal-to-noise ratio to be improved output by a femtosecond laser light source into chirp signal light; secondly, performing high magnification on a signal and performing low magnification on a noise by using the chirp matched optical parametric chirped pulse amplification so as to improve the signal-to-noise ratio of the chirp signal light; and finally, compressing the chirp signal light into femtosecond laser with a high signal-to-noise ratio by using an optical pulse compressor. The device for implementing the method comprises a femtosecond laser light source, a femtosecond laser, a first non-linear optical crystal, a second non-linear optical crystal, ...

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09-05-2023 дата публикации

Plant extract extraction device

Номер: CN116080123A
Автор: ZENG SHUGUANG
Принадлежит:

The invention relates to a plant extract extraction device, and belongs to the technical field of biological substance extraction, the plant extract extraction device comprises a placing plate, a device main body, a residue conveying assembly and a filter pressing assembly, and the device main body, the residue conveying assembly and the filter pressing assembly are sequentially mounted on the placing plate; the filter pressing assembly comprises a first mounting frame, a second mounting frame, a containing box, a pressing head, a driving part and a first collecting box, the first mounting frame and the second mounting frame are both mounted on the placing plate, the first mounting frame can move between the second mounting frame and the residue conveying assembly, and the containing box and the first collecting box are both mounted on the first mounting frame; the residue conveying assembly is used for conveying residues generated by the device body into the containing box, the driving ...

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18-11-2009 дата публикации

Method for preparing underglaze bone china

Номер: CN0101580407A
Принадлежит:

The invention discloses a method for preparing underglaze bone china, which comprises the following production steps: preparing a bone china material into a blank; performing high temperature biscuit firing on the blank, wherein the temperature of the biscuit firing is between 1,250 and 1,280 DEG C; performing color painting on a product after the biscuit firing, wherein the pigment used by the color painting is prepared from the following compositions by weight percentage: 65 to 75 percent of colorradical and 25 to 35 percent of glaze; performing high temperature color firing on the product after the color painting, and the temperature of the color firing is between 1,200 and 1,250 DEG C; and glazing the product after the high temperature color firing with the same glaze in the pigment, and performing medium temperature glaze firing to prepare a finished product, wherein the temperature of the glaze firing is between 1,050 and 1,150 DEG C. The underglaze bone china prepared by the method ...

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08-07-2015 дата публикации

Monocular vision based real-time location system and method for products on conveying belt

Номер: CN104760812A
Принадлежит:

A monocular vision based real-time location system for products on a conveying belt comprises a camera. The camera is arranged above the head end of the conveying belt and is connected with a computer. A calibration plate is arranged in a location region of a static conveying belt. A monocular vision based real-time location method for products on the conveying belt comprises the steps of building a world coordinate system; measuring world coordinates of a projection point of the camera in the conveying belt plane; producing a viewing frame picture; detecting the edges of the picture to obtain the picture only with the product edges; separating the products in a line scanning mode; performing column scanning on the single product in the picture to obtain the product lower boundary; calculating world coordinates of points of the lower boundary in the picture, and calculating the distance between the points of the world coordinate system along the conveying belt and the projection point to ...

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20-10-2010 дата публикации

Method for increasing signal to noise ratio of femtosecond laser through F-P (Fabry-Perol) etalon internally installed with electro-optic crystal

Номер: CN0101867145A
Принадлежит:

The invention relates to a method for increasing the signal to noise ratio of a femtosecond laser through an F-P (Fabry-Perol) etalon internally installed with an electro-optic crystal and a device thereof, which belong to the technical field of ultrashort pulses. The method comprises the following steps: firstly, stretching a femtosecond laser pulse to be increased in the signal to noise ratio, which is output from a femtosecond laser light source, into chirp signal light; enabling an instaneous spectral filtering function output by the F-P etalon to be consistent with the chirp size of the chirp signal light by modulating the voltages of both ends of the electro-optic crystal internally installed in the F-P etalon, and thereby, a chirp signal pulse efficiently pass, whereas noise is filtered off to achieve the goal of increasing the signal to noise ratio of the chirp pulse; finally, compressing the chirp signal light into the femtosecond laser with higher signal to noise ratio. The device ...

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16-12-2015 дата публикации

Fiber grating earthquake sounds sensing probe

Номер: CN0204881836U
Принадлежит:

The utility model provides a fiber grating earthquake sounds sensing probe, including optic fibre, the low light level bars of warbling, the spring, the quality piece, the low light level bars of warbling, the barrel, spring one end is connected with the quality piece, the other end and the barrel connect, optic fibre one end is glued with the quality piece, and the other end is glued with the barrel. Two gratings of warbling have the same reflectance spectrum, the reflectivity is less than 1% antiradar reflectivity grating to arrange outside the strain sensor workspace, in order to avoid the grating stress influence of originally experiencing.

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