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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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Применить Всего найдено 14. Отображено 14.

25-07-2023 дата публикации

Network security attack alarm processing method

Номер: CN116488881A

Автор: ZHANG ZHEQI, XIAO ZHAOBO, ZHANG HUAFENG, LIU MEIFENG, YUE XINGFU

Принадлежит:

The invention relates to the technical field of network security, and discloses a network security attack alarm processing method, which comprises the following steps of: monitoring according to a network security module, collecting, classifying and summarizing a network security attack event through a data processing module when the network security attack event is monitored, and finally outputting the data of the network security attack event. The network security module is used for monitoring and identifying a network, the data processing module is used for collecting, classifying and summarizing data of network security attack events and finally outputting the data, a network security attack disposal log is generated after disposal, and the manual disposal module is matched to intervene in the network security attack events which cannot be handled by the security disposal module. The network security attack processing log is artificially generated after the processing, so that the subsequent ...

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Номер записи: 1

01-09-2010 дата публикации

Method for preparing titanium alloy by fused salt electrolysis

Номер: CN0101275251B

Автор: LIU MEIFENG, LU SHIGANG, KAN SURONG, LI GUOXUN, MEIFENG LIU, SHIGANG LU, SURONG KAN, GUOXUN LI

Принадлежит:

The invention relates to a special device for preparing titanium alloy by fusion electrolysis. The technique steps are following: firstly evenly mixing powder of the titanium dioxide or titanium mine or other metal oxidants, adding proper water or adhesive and blending, preparing spheroid granule by using general pelleting machine; the diameter of the granule is 3-6 mm, sintering for 2-6 h at 800-1200 centigrade, loading to the cathode frame as the cathode; the fusion is loaded in the stainless crucible inside-lining graphite; the graphite crucible is anode; processing electrolysis under the protection of the argon; the electrolysis voltage linearly increases as the electrolysis process changing between 1.0 to 3.3 v; after the electrolysis, the cathode product is picked out after being cooled in the cooling chamber; using 1% dilute hydrochloric acid, distilled water and absolute ethyl alcohol to wash the product after breaking the product; obtaining the titanium alloy after drying. The ...

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Номер записи: 2

04-08-2023 дата публикации

Method for extracting persimmon leaf polyphenol by ultrasonic-enhanced deep-eutectic solvent and application of persimmon leaf polyphenol

Номер: CN116531284A

Автор: LIU MEIFENG, YUAN EN

Принадлежит:

The invention discloses a method for extracting persimmon leaf polyphenol by using an ultrasonic-enhanced deep-eutectic solvent and application of the persimmon leaf polyphenol. The method comprises the following steps: mixing persimmon leaves with a deep-eutectic solvent taking choline chloride as a hydrogen bond acceptor, carrying out enhanced extraction by adopting an ultrasonic method, centrifuging, and filtering to obtain a persimmon leaf polyphenol extracting solution. According to the method, the extraction rate of the persimmon leaf polyphenol can be obviously improved, and the content of the total phenol in the persimmon leaf is taken as an index and is 1-3 times that of a conventional solvent extraction method. The eutectic solvent and the persimmon leaf polyphenol form multiple interactions such as hydrogen bonds, Van der Waals force and the like, so that the solubility and mass transfer rate of the persimmon leaf polyphenol are increased, and the extraction efficiency of the ...

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Номер записи: 3

02-07-2014 дата публикации

Madecassoside lipidosome and preparation method and application thereof

Номер: CN103893122A

Автор: LIU MEIFENG, WANG HUIJUAN

Принадлежит:

The invention belongs to the fields of drug preparations and cosmetics, and particularly relates to madecassoside lipidosome and a preparation method and application thereof. The method comprises the following steps: dissolving or heating and fusing madecassoside and lipidosome components through an organic solvent; concentrating or drying; adding a hydration medium containing the madecassoside to hydrate, so as to prepare a lipid disperse aqueous solution; and forming the madecassoside lipidosome by homogeneous treatment. The madecassoside lipidosome can be prepared into the forms such as emulsion, cream, paste, turunda or freeze-dried powder, and all adopted traditional use forms. The lipid component is taken as a carrier, so that the transdermal performance, slow release and the bioavailability of the madecassoside can be improved, and the madecassoside can be reserved in the skin to the maximal extent. Thus, the efficacy is effectively played, and especially, transdermal absorption ...

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Номер записи: 4

16-09-2015 дата публикации

Device and method for eliminating and recycling organic solvent from cathode electrophoresis emulsion

Номер: CN104906822A

Автор: LI JIAN, LIU MEIFENG, LI HAIXIA, WEI WEI

Принадлежит:

The invention relates to a device and a method for eliminating and recycling organic solvent from cathode electrophoresis emulsion. The device comprises an upper tower section, a middle tower section and a lower tower section, wherein a carrier gas inlet is formed at the lower part of the lower tower section, the lower end of the lower tower section is connected with a heat exchanger of which the bottom is connected with an emulsion recover kettle, the lower end of a heat exchange tube in the heat exchanger is provided with a cold emulsion feeding hole, the upper end of the heat exchange tube is provided with an emulsion discharge hole, the emulsion discharge hole is communicated with the emulsion feeding hole at the lower end of the middle tower section by a charging pump, the upper end of the upper tower section is connected with a tower top, the tower top is externally connected with a condenser, a reflux ratio controller is arranged on the condenser, the bottom of the condenser is connected ...

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Номер записи: 5

23-06-2023 дата публикации

Ampelopsis glandulifera ketone A with NLRP3 inhibitory activity as well as derivative and application thereof

Номер: CN116283533A

Автор: LIU MEIFENG, TU WENCHAO, XIAO WEILIE, ZHANG XINGJIE, ZHAO YINGXIN, LI XIAOLI, ZHANG RUIHAN

Принадлежит:

The invention discloses christina loosestrife ketone A with NLRP3 inhibitory activity as well as a derivative and application of the christina loosestrife ketone A. According to the present invention, the Apostichopus japonicus ketone A and the derivative thereof are abietane diterpenoid compounds, have significant inhibition effects on NLRP3 signal channels, can effectively inhibit the release of J774A.1 macrophage LDH, can significantly inhibit the maturing processing of Caspase-1 after NLRP3 inflammasome activation induced by nigericin, and the release of IL-1beta, and can significantly reduce the proportion of J774A.1 macrophage pyroptosis; the sempervivone A and the derivative thereof can be used as an NLRP3 inhibitor, and can be used for preparing medicines or products for various NLRP3 inflammasome mediated diseases.

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Номер записи: 6

01-10-2008 дата публикации

Номер: CN104003847A

Автор: LIU MEIFENG, LIU JIAN

Принадлежит:

The invention belongs to the fields of fine chemicals and chemical synthesis, and discloses a directional one-step synthetic method of 2, 5-di tertiary butyl hydroquinone. According to the method, tertiary butyl alcohol and hydroquinone are used as raw materials for directional synthesis of the 2, 5-di tertiary butyl hydroquinone in the presence of a catalyst and water as a solvent. The directional one-step synthetic method of the 2, 5-di tertiary butyl hydroquinone is simple and convenient in operation and low in requirement on equipment; the yield of the 2, 5-di tertiary butyl hydroquinone can reach 90%, the purity reaches more than 99%, almost all the raw materials are converted into the target product, the selectivity and high atom economy are high; the directional one-step synthetic method is less in catalyst attrition, and avoids the use of aromatic hydrocarbons and ketones and other organic solvents, and the reaction mother liquor can be used repeatedly, the pollution of the environment ...

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Номер записи: 14