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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 15. Отображено 15.
12-05-2023 дата публикации

Flexible heat-conducting ionic liquid phase change gel material as well as preparation method and application thereof

Номер: CN116113217A
Автор: QIAO JUNPENG, LIN PENGCHENG, CHEN YING, LI SONGTAO, FENG QIYE, TANG WENGUANG, CHEN JIANFA, WANG HAO
Принадлежит:

The invention discloses a flexible heat-conducting ionic liquid phase-change gel material and a preparation method and application thereof.The preparation method comprises the steps that an ionic liquid phase-change material and a liquid crystal ion oligomer are heated and mixed under the high-temperature condition, and a melt is obtained; extruding the melt, and applying a direct-current electric field for orientation to enable the melt to present uniform orientation, so as to obtain an ionic liquid and liquid crystal ion oligomer; and coating the surface of the ionic liquid-liquid crystal ion oligomer with inorganic nanowires through electrostatic adsorption, and then applying a magnetic field for orientation to enable the inorganic nanowires on the surface to present uniform orientation so as to obtain the ionic liquid-liquid crystal ion oligomer-inorganic nanowire material. The ionic liquid phase change material is used as a main body, the liquid crystal ion oligomer is used for packaging ...

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Номер записи: 1
30-05-2023 дата публикации

Metasurface design method, beam shaper, device and electronic equipment

Номер: CN116184659A
Автор: CHEN JIANFA, HAO CHENGLONG, TAN FENGZE, ZHU JIAN
Принадлежит:

The invention provides a metasurface design method, a beam shaper, a device and electronic equipment. The method comprises the following steps: determining an incidence type and an incidence parameter; determining an emergent type and emergent parameters; determining an initial value of diffraction phase distribution based on the incident parameter and the emergent parameter; and performing iterative optimization on the diffraction phase distribution according to the incident type and the emergent type to obtain optimized diffraction phase distribution, generating target phase distribution according to the optimized diffraction phase distribution, and generating the metasurface according to the target phase distribution. According to the metasurface design method, the beam shaper, the device and the electronic equipment provided by the embodiment of the invention, the problem that the light intensity distribution edge of an emergent beam is too smooth due to the fact that diffraction phase ...

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Номер записи: 2
04-04-2023 дата публикации

Intermediate-image-point-free off-axis three-mirror system installation and adjustment light path and method

Номер: CN115903201A
Автор: SONG JIAQI, YAO YUGANG, CUI ZEYAO, CHEN JIANFA, WANG XUCHAO
Принадлежит:

The invention belongs to the field of precision light machine installation and adjustment, and relates to an off-axis three-mirror system installation and adjustment light path and method without an intermediate image point. The adjustment light path comprises an interferometer, a primary mirror, a secondary mirror, a third mirror, a computer generated holographic grating (CGH), a first optical flat, a standard ball and a light screen; according to the adjustment method, the primary mirror is firstly installed on the system frame, the optical axis of the interferometer is used as a reference, the primary mirror and the third mirror are positioned in cooperation with the CGH, then the third mirror is installed on the system frame, the third mirror is adjusted to ensure the relative position of the third mirror and the primary mirror, finally the CGH is removed, the secondary mirror is installed on the multi-dimensional adjusting table, and the interferometer is used for monitoring the reference ...

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Номер записи: 3
18-04-2023 дата публикации

Integrated core mold and forming method thereof as well as special-shaped charge rapid forming method

Номер: CN115977828A
Автор: HE KUAI, HUANG JIANGLIU, YIN SHENGJIE, CHEN JIANFA, ZHAI FENG, YUE HAO
Принадлежит:

The invention discloses an integrated core mold which comprises an aluminum support and a low-temperature alloy annular structure. The aluminum support is of a cylindrical rod structure, the low-temperature alloy annular structure is connected to the outer surface of the aluminum support, and the aluminum support and the low-temperature alloy annular structure are coaxial. The melting point of the low-temperature alloy used by the low-temperature alloy annular structure is higher than the curing temperature of the solid propellant and lower than the highest aging test temperature of the solid propellant. The invention further discloses a method for preparing the core mold through the melt injection method. The invention further discloses a rapid forming method for the special-shaped charge, after the slurry is solidified, the low-temperature alloy annular structure is completely melted, and the aluminum support can be pulled out of the special-shaped charge. According to the invention, ...

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Номер записи: 4
16-05-2023 дата публикации

Modularized assembly method for 3D printing propellant grain

Номер: CN116122986A
Автор: HE KUAI, MAO CHENGLI, HUANG JIANGLIU, YUE HAO, LI SHASHA, CHEN JIANFA
Принадлежит:

The invention discloses a 3D printing propellant grain modular assembly method which comprises the following steps: determining a charging configuration according to a design result of an inner charging trajectory of a solid engine; according to the charging configuration, charging is subjected to module segmentation, N charging modules are obtained, and N is larger than 1; the N charging modules are subjected to 3D printing forming through a propellant 3D printing system; and the N charging modules are assembled into complete charging by using the assembling tool and the propellant thin slurry. By means of the method, accurate forming of the large-length-diameter-ratio special-shaped grain can be achieved, and the manufacturing efficiency of the special-shaped grain can be remarkably improved.

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Номер записи: 5
05-05-2023 дата публикации

Method for detecting activity-NCO distribution in HTPB-IPDI curing reaction process

Номер: CN116068115A
Автор: CHENG LIANCHAO, LEE KYUNG-SU, SHI ZHIQUAN, LIU JING, CHENG SIFAN, CHEN JIANFA, ZHANG XIUYAN, HONG YANG, WANG XIYAN, LU ZHENCHAO
Принадлежит:

The invention discloses an activity-NCO distribution detection method in a curing reaction process of an HTPB-IPDI block polyurethane propellant, which comprises the following steps: firstly, preparing an IPDI standard sample solution, an isocyanate-terminated HTPB standard sample solution and an isocyanate-terminated cross-linking agent standard sample solution; calculating a relative correction factor of the internal standard substance to an IPDI standard sample, a relative correction factor of the internal standard substance to an isocyanate-terminated HTPB standard sample and a relative correction factor of the internal standard substance to an isocyanate-terminated cross-linking agent sample according to a gel permeation chromatogram of the solution; and finally, according to the relative correction factor, obtaining the mass fraction of free IPDI in the HTPB-IPDI sample, the mass fraction of isocyanate-terminated HTPB and the mass fraction of-NCO in the isocyanate-terminated cross-linking ...

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Номер записи: 6
18-07-2023 дата публикации

Application, composition and preparation method of organic lead salt

Номер: CN116444324A
Автор: YAN SIHAI, ZHAO ZHUOAN, SUN JING, FANG QIANG, MAO CHENGLI, ZHANG HUIKUN, HE KUAI, CHEN JIANFA
Принадлежит:

The invention discloses application, a composition and a preparation method of organic lead salt. The invention provides application of a compound I as a curing accelerator in the field of azide solid propellants. The curing accelerator provided by the invention meets one or more of the following advantages: the curing accelerator has excellent curing performance, and keeps good mechanical properties and combustion performance of an azide composite solid propellant.

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Номер записи: 7
25-04-2023 дата публикации

Design method, device and equipment of metasurface and storage medium

Номер: CN116009245A
Автор: CHEN JIANFA, HAO CHENGLONG, TAN FENGZE, ZHU JIAN
Принадлежит:

The invention provides a metasurface design method and device, equipment and a storage medium, and the method comprises the steps: determining the phase distribution of a current metasurface according to a preset image and a light source function of a first light source; the preset image comprises a plurality of projection points arranged in an array mode; based on the phase distribution of the current metasurface and the second light source, performing simulation to obtain a current image; and if the current image does not meet the expected requirement, optimizing the phase distribution of the current metasurface in a mode of adjusting the projection points in the preset image, determining the optimized target phase distribution, and generating the metasurface according to the target phase distribution. According to the metasurface design method, device and equipment and the storage medium provided by the embodiment of the invention, the preset image corresponding to the regulation and ...

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Номер записи: 8
06-06-2023 дата публикации

Spherical copper-chromium composite metal oxide burning rate catalyst and preparation method thereof

Номер: CN116212886A
Автор: XU JILIN, CHEN JIANFA, ZHAN PING, CHEN WENTING, BAIYULAN, WU WEIXU, CHENG LIANCHAO, ZHANG JUN, JIAN KAN
Принадлежит:

The invention discloses a preparation method of a spherical copper-chromium composite metal oxide burning rate catalyst. The preparation method comprises the following steps: preparing a mixed water-soluble salt solution of Cu < 2 + > and Cr < 3 + > in a reaction kettle; dropwise adding an ammonium carbonate aqueous solution into a mixed water-soluble salt solution of Cu < 2 + > and Cr < 3 + > under a stirring condition, and continuously stirring after dropwise adding to obtain a blue-green precipitate; preparing a suspension from the blue-green precipitate, and carrying out spray drying treatment on the suspension to obtain a spheroidized copper-chromium composite metal oxide catalyst precursor, namely basic copper-chromium carbonate powder; and calcining the basic copper-chromium carbonate powder to obtain the spherical copper-chromium composite metal oxide burning rate catalyst. The invention further discloses a spherical copper-chromium composite metal oxide burning rate catalyst. The ...

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Номер записи: 9
04-08-2023 дата публикации

Pushing device used before mosquito-repellent incense packaging and mosquito-repellent incense machine production line

Номер: CN116534357A
Автор: CHEN JIANFA, HUANG HONGYI
Принадлежит:

The pushing device comprises two discharging conveying belts, a discharging port is formed in one end of each discharging conveying belt, a feeding port is formed in the other end of each discharging conveying belt, a packaging conveying belt is arranged at the discharging ports, and the discharging conveying belts and the packaging conveying belt are both arranged on a machine table. The positions, located at the discharging ports, of the machine table are provided with pushing mechanisms used for pushing the mosquito-repellent incense rings on the discharging conveying belts to the packaging conveying belts respectively, by arranging the pushing mechanisms, the mosquito-repellent incense rings on the two discharging conveying belts are pushed to the packaging conveying belts intermittently and alternately, the production efficiency is high, and the production efficiency is high. Mosquito-repellent incense rings on the packaging conveying belt are placed at equal intervals, follow-up packaging ...

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Номер записи: 10
11-07-2023 дата публикации

Meteorite ash surface treatment method and product thereof

Номер: CN116408729A
Автор: CHEN JIANFA, QIN XIAOJIE, CHEN PO-CHENG
Принадлежит:

The invention provides an aerolite ash surface treatment method. The aerolite ash surface treatment method comprises the following steps: (1) polishing a formed workpiece to remove an oxide layer and burrs; (2) the polished surface of the workpiece is cleaned and dried; (3) carrying out sand blasting treatment on the surface of the workpiece treated in the step (2) by using a sand material, wherein the sand material consists of glass beads and black corundum; (4) the workpiece subjected to sand blasting is cleaned and dried; (5) uniformly spraying nano oil on the outer surface of the workpiece treated in the step (4); and (6) baking the sprayed workpiece in an environment at the temperature of 180-220 DEG C to completely cure the nano oil, and cooling to obtain a meteorite ash surface treatment product. The invention further provides a meteorite ash surface treatment product which is produced after treatment of the meteorite ash surface treatment method. Compared with other technologies ...

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Номер записи: 11
16-05-2023 дата публикации

Solid engine 3D printing grain isostatic pressing compact forming method

Номер: CN116122985A
Автор: HUANG JIANGLIU, HE KUAI, CHEN JIANFA, XI BINBIN, TAO JING
Принадлежит:

The invention relates to an isostatic pressing compact forming device and method for a solid engine grain. The isostatic pressing compact forming method comprises the steps that firstly, a pre-cured high-solid-content special-shaped grain is obtained; then a matched supporting tool is assembled in place according to the explosive type; then the grain with the supporting tool is loaded into the wall face tool and moved into the engine shell; a diaphragm with certain strength and elongation is covered on the surface of an inner hole of the grain, liquid with specific temperature is introduced into the lowest position of a diaphragm cavity, air between the diaphragm and the grain is discharged, and the diaphragm is tightly attached to the inner wall surface of the grain; the top cover is installed to ensure that the edge of the diaphragm crosses the sealing ring, and complete separation of the grain and liquid is achieved; and finally, a pressure measuring nozzle is connected with a hydraulic ...

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Номер записи: 12
01-08-2023 дата публикации

High-entropy fluoride quantum dot nano-enzyme, preparation method and biochemical detection application of high-entropy fluoride quantum dot nano-enzyme

Номер: CN116510756A
Автор: LIN PENGCHENG, HUANG JUANXIA, CHEN YING, CHEN JIAQI, SU YIQIAN, LI HUIQIN, CHEN JIANFA
Принадлежит:

The invention discloses a high-entropy fluoride quantum dot nano-enzyme as well as a preparation method and biochemical detection application thereof. The method comprises the following steps: firstly, atomizing, heating and spraying raw materials based on a gas phase freezing method to enable reactants to meet to form precipitated particles, and quickly freezing the particles on an ultralow-temperature plate to obtain initial high-entropy fluoride nano-enzyme; secondly, performing quantum dot processing on the initial high-entropy fluoride nano-enzyme through an implosion method; and finally, carrying out surface modification on the high-entropy fluoride quantum dot nano-enzyme through a surface catalysis center grafting method to obtain the final high-entropy fluoride quantum dot nano-enzyme. The preparation method provided by the invention is suitable for preparation of various high-entropy fluoride quantum dot nano-enzymes, the preparation method is simple and easy to implement, and ...

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Номер записи: 13
18-04-2023 дата публикации

Display screen, manufacturing method and device of display screen, equipment and storage medium

Номер: CN115988920A
Автор: CHEN JIANFA, HAO CHENGLONG, TAN FENGZE, ZHU JIAN
Принадлежит:

The invention provides a display screen, a manufacturing method and device of the display screen, equipment and a storage medium, the display screen comprises a plurality of pixels arranged periodically, and the pixels comprise at least one sub-pixel; the sub-pixel comprises a basic structure and at least one micro-nano structure, and the basic structure is used for emitting imaging light; the micro-nano structure is arranged on the backlight side of the basic structure and is used for projecting incident light into speckles; the refractive index of the basic structure is smaller than that of the micro-nano structure, and the absolute value of the difference value between the refractive index of the micro-nano structure and the refractive index of the basic structure is larger than a preset threshold value. According to the display screen, the manufacturing method and device of the display screen, the equipment and the storage medium provided by the embodiment of the invention, dual functions ...

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Номер записи: 14
18-07-2023 дата публикации

Method for detecting gelation degree of small amount of propellant sample

Номер: CN116448897A
Автор: LEE KYUNG-SU, CHENG LIANCHAO, SHI ZHIQUAN, LIU JING, CHENG SIFAN, CHEN JIANFA, HONG YANG, LU ZHENCHAO, WANG XIYAN, CAO KAI
Принадлежит:

The invention provides a method for detecting the gelation degree of a small quantity of propellant samples, which comprises the following steps of: determining the components of propellant films according to the components of a propellant to be detected, and adjusting curing parameters or curing time to obtain a plurality of groups of propellant films with different gelation degrees; the method comprises the following steps: weighing propellant film samples with different gelation degrees, dissolving to a constant volume, carrying out chromatographic detection on a solution part, and drawing a sol standard curve; the method comprises the following steps: weighing a to-be-detected propellant sample, dissolving to a constant volume, taking a solution part, carrying out chromatographic detection, determining the sol mass in the propellant through a standard curve method, calculating the gel mass according to the formula that the network structure mass of the to-be-detected propellant is equal ...

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Номер записи: 15