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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 10. Отображено 10.
11-04-2023 дата публикации

Quick-switching blind plate valve

Номер: CN115949762A
Автор: ZHANG XUFENG, CHEN ZHAOYANG, LI JING, LEI TING, DONG SHENGSHUAI, ZHANG SHUAIMING
Принадлежит:

The invention relates to the field of valves, in particular to a quick-switching blind plate valve which comprises a left valve body and a right valve body, a working seam is formed in the connecting position of the left valve body and the right valve body, a switching plate is inserted into the working seam, a runner hole and a closure area are arranged on the surface of the switching plate, and a clamping seat is arranged at the position, close to the switching plate, of the right valve body. Annular grooves are formed in the two opposite side surfaces of the switching plate and located on the edge of the closure area, annular sealing gaskets are arranged in the annular grooves, a cavity is formed in the switching plate, an extrusion assembly used for abutting against the annular sealing gaskets is installed in the cavity, and linkage holes communicating with the cavity are formed in the two side surfaces of the switching plate and located on the outer sides of the annular grooves. And ...

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Номер записи: 1
23-06-2023 дата публикации

Butterfly valve structure for quickly disassembling pipeline

Номер: CN116292922A
Автор: LYU XIAOFANG, WU HONGTAO, LEI TING, ZHANG XUFENG, WU HAIXU, WU NA
Принадлежит:

The butterfly valve structure comprises a valve seat, a valve rod, a valve plate, a valve cover and a rotating rod, one end of the valve rod is located in the valve cover, the other end of the valve rod penetrates through the valve seat and then is fixedly connected with the valve plate, the valve plate is located in the valve seat, the outer diameter of the valve plate is the same as the inner diameter of the valve seat, and the valve rod is rotationally connected with the valve cover and the valve seat; the valve rod is fixed to the valve cover, the area, located in the valve cover, of the valve rod is in a worm shape, a gear is fixed to the valve rod and located in the valve cover, the gear is meshed with the worm, the valve cover comprises an upper cover body and a lower cover body which are hinged to each other, and a locking assembly is arranged between the upper cover body and the lower cover body and used for achieving quick opening and locking closing of the valve cover. The effect ...

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Номер записи: 2
21-07-2023 дата публикации

DLA-Net-based remote control and calculation system for product precision of patch equipment

Номер: CN116466655A
Автор: ZHANG XUFENG, KANG YONGXIN, REN YAOHUA, ZHANG LEI, ZHOU XIANZAN, ZHANG YONGCONG, LYU QIPENG, TIAN YAFANG
Принадлежит:

The invention discloses a DLA-Net-based remote control and calculation system for product precision of patch equipment, and relates to the field of precision control of DLA-Net products. Comprising the following steps: a) a server layer: realizing an equipment remote control module and a full-size CPK calculation rule, and deploying a semiconductor standard communication protocol (SECS) and an equipment general model (GEM) server side; b) a communication layer realizes SECS/GEM data interaction; c) the device layer configures a peripheral layer access driver, designs upper control software, constructs a DLA-Net product position identification model, and deploys a SECS/GEM client; and d) the peripheral layer realizes PLC control parameter and color camera configuration. According to the invention, remote control of production of the chip mounting equipment is finally realized, and a machine learning method is utilized to identify the chip mounting position so as to remotely calculate the ...

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Номер записи: 3
23-05-2023 дата публикации

Polyurethane block active nano flexibilizer, preparation method thereof and flexibilizer/epoxy resin composite material

Номер: CN116143991A
Автор: JEON EUN-SO, WANG CHUNLEI, YANG ZENGFU, LI FULAI, ZOU MEISHUAI, ZHANG XUFENG, LI XIAODONG
Принадлежит:

The invention provides a polyurethane block active nano-toughening agent. The polyurethane block active nano-toughening agent has a structure as shown in a formula (I) and/or a formula (II). The toughening agent provided by the invention has good intermiscibility with epoxy resin, and low-viscosity toughening can be realized; meanwhile, nano-particles can be generated in situ in the curing process of the toughening agent and epoxy resin, a homogeneous system is formed, and quasi-molecular-level toughening is achieved. In addition, a system formed by toughening the epoxy resin with the toughening agent has good storage stability and transparency.

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Номер записи: 4
29-08-2023 дата публикации

Preparation method and application of microgel material

Номер: CN116650346A
Автор: SHEN JING, ZHANG YUHUI, ZHANG JUNXIONG, ZHANG XUFENG, WANG JUN, FENG XIYUN
Принадлежит:

The invention relates to a preparation method and application of a microgel material. The preparation method comprises the following steps: 1) synthesizing nano zinc oxide; (2) synthesizing ZnO-PMMA (polymethyl methacrylate) microspheres; and (3) synthesizing the ZnO-PMMA/P (MEO2MA-co-MEO5MA) core-shell microgel. The preparation method of the ZnO-PMMA/P (MEO2MA-co-MEO5MA) According to the invention, a relatively safe physical sunscreen material ZnO is selected, and non-linear polyethylene glycol is used as a shell, so that skin allergy can be reduced; nano ZnO is selected, so that the problem that physical sunscreen particles are too large is solved; by adopting a method of wrapping nano ZnO with PMMA, the problem of unnatural color is improved; and the PMMA is non-toxic and high in flowability, the preparation method is simple, and the sphere diameter is controllable.

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Номер записи: 5
28-07-2023 дата публикации

Double-eccentric half-ball valve

Номер: CN116498768A
Автор: LIU LIJUAN, WAN LILI, ZHANG SHUAIMING, ZHANG XUFENG, WU HONGTAO, WU JIANGXU
Принадлежит:

The invention relates to the field of valves, in particular to a double-eccentric semi-ball valve which comprises a valve body and a valve element arranged in the valve body, a feeding hole is formed in the valve body, the outer side of the feeding hole is sleeved with a connecting protruding edge used for being connected with a pipeline, and an auxiliary pipe is arranged in the feeding hole; the outer diameter of the auxiliary pipe is equal to the inner diameter of the feeding hole, the auxiliary pipe and the feeding hole are kept coaxial, the end, close to the center of the valve body, of the auxiliary pipe can abut against the cambered surface of the valve element in a sealed mode, the outer side of the auxiliary pipe is sleeved with an annular installation piece, one end face of the installation piece is flush with one end face of the auxiliary pipe, and the installation piece is embedded into the valve body. An annular elastic sealing gasket is arranged between the mounting piece and ...

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Номер записи: 6
15-08-2023 дата публикации

Detection platform and detection method for on-off test of high-voltage alternating-current fuse

Номер: CN116593944A
Автор: ZHANG XUFENG, SHI NA, LUO YUAN, CHEN HUIXIN, CHENG JU, YANG YANQIANG, YANG ZONG, LUO FUBAO, LU JUNYANG, LI TAO, CHEN XINYU, LI XUJIAO, LI ZHUOQING
Принадлежит:

The invention discloses a detection platform and a detection method for an on-off test of a high-voltage AC fuse, a low-voltage loop is connected with a first Rogowski coil LH1, and the first Rogowski coil LH1 is connected in parallel with a digital electric second meter, is connected in series with a rectifier bridge circuit and then is connected to a data collector; the high-voltage loop is connected with a second Rogowski coil LH2, and the second Rogowski coil LH2 is connected with the data collector. During a test, a low-voltage loop is firstly connected, the through-flow time t1 of the low-voltage loop is measured through a digital electric second meter, the current falling edge trigger of the data collector is set, and the trigger time of the data collector is recorded as TX; and when the low-voltage loop is completely disconnected and the high-voltage loop passes through the current, the data collector records the starting time of the current waveform of the high-voltage loop as ...

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Номер записи: 7
14-07-2023 дата публикации

Manufacturing method of anchor rod nut and anchor rod nut

Номер: CN116423882A
Автор: LUO WEN, JEON EUN-SO, REN YONGQIANG, HE ANMIN, YANG ZENGFU, ZOU MEISHUAI, ZHANG XUFENG, LI XIAODONG
Принадлежит:

The invention provides a manufacturing method of an anchor rod nut and the anchor rod nut. The manufacturing method comprises the following steps: S1, winding a prepreg tape on the surface of a threaded core rod to form a prepreg tape layer; s2, winding a prepreg tow on the surface of the prepreg tape layer to form a prepreg tow layer; s3, winding a pre-impregnated sheet on the surface of the pre-impregnated tow layer to form a pre-impregnated sheet layer, and obtaining a prefabricated assembly; and S4, the prefabricated assembly is subjected to compression molding, and the anchor rod nut is obtained. According to the anchor rod nut, the prepreg tape, the prepreg filament bundle and the prepreg sheet are wound on the surface of the threaded core rod to form the prepreg tape layer, the prepreg filament layer and the prepreg sheet layer which are sequentially arranged from inside to outside, then the anchor rod nut is obtained through compression molding, the anchor rod nut is arranged in ...

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Номер записи: 8
06-06-2023 дата публикации

Controllable impact type self-sealing butterfly valve

Номер: CN116221427A
Автор: WU YIMIN, WU HAIXU, CHEN ZHAOYANG, LEI TING, ZHANG XUFENG, LIU WEI
Принадлежит:

The invention discloses a controllable impact type self-sealing test butterfly valve which comprises a butterfly valve body, a triangular clamp is welded to the annular wall of the butterfly valve body, and a connecting disc is welded to the top end of the triangular clamp. According to the controllable impact type self-sealing test butterfly valve, a bearing rod connected with the side wall of a connecting rod is used for being in butt joint with a bearing ball, meanwhile, an annular strip connected to the top end of a rod sleeve is matched with an upper side edge block to be in butt joint with the outer wall of a guide pipe, an inner cavity of the guide pipe is in butt joint with a guide rod in a sliding mode, and after a bottom plate is pushed upwards, the guide rod slides towards the interior of the guide pipe; the inner cavity of the guide pipe, the cavity pipe, the movable pin and the inner cavity of the cavity cylinder make contact with the push rod and push the push rod to move ...

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Номер записи: 9
25-08-2023 дата публикации

Method for extracting flavone from stropharia rugoso-annulata

Номер: CN116637129A
Автор: HE WEIQIANG, LUO LUJIA, LIU JUN, ZHANG XUFENG, SHI XINLEI, SUN YU
Принадлежит:

The invention discloses a method for extracting stropharia rugoso-annulata flavone, which comprises the following steps: cleaning stropharia rugoso-annulata, slicing, freeze-drying, carrying out nanoscale crushing, adding copovidone into stropharia rugoso-annulata powder, and grinding in a low-temperature ball mill; the stropharia rugoso-annulata powder-copovidone mixture is subjected to high-temperature and high-pressure extraction in a closed environment by using a potassium hydroxide solution under a microwave-assisted condition. The stropharia rugoso-annulata nanometer micro powder and the copovidone are mixed and treated through a co-grinding technology, a microwave-assisted extraction method is adopted, a potassium hydroxide solution serves as an extraction medium, the extraction time can be greatly shortened, the extraction efficiency is improved, follow-up separation and purification work of stropharia rugoso-annulata flavone is facilitated, the production cost is reduced, and environment ...

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Номер записи: 10