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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 4. Отображено 4.
11-07-2023 дата публикации

Data security access control method and system based on dynamic trust evaluation and storage medium

Номер: CN116418568A
Автор: ZHANG LIANG, LEE HYE-SUNG, QU GANG, GE MINHUI, ZHAI HAIBAO, JIN HAOCHUN, WU XIN, BAI JIEYIN, LIANG YE, LI HANG, SHAO LISONG, WANG CHUNYAN, WANG HAO, YAN TIANJIAO, LIAO LULIN, WU QUN
Принадлежит:

The invention discloses a data security access control method and system based on dynamic trust evaluation and a storage medium, and the method comprises the following steps: 1, a user initiates an access application, and if there is no corresponding user access record table in an access control system, an access record table is generated; step 2, the access control system collects information of an access subject and an access object and generates access record information; 4, the access control system judges whether the access belongs to white list access or not; 5, calculating a user access risk security baseline value according to the information in the access record table, and dynamically evaluating the user access risk; and 6, if the risk assessment value is higher than or equal to the access risk security baseline value, refusing access and ending the process, and if the risk assessment value is lower than the security baseline value, authorizing the user. According to the method ...

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Номер записи: 1
12-05-2023 дата публикации

Unified security authentication method and system for power regulation and control system

Номер: CN116112242A
Автор: TAO WENWEI, CAO YANG, WU JINYU, SU YANG, ZHANG WENZHE, CHEN GANG, YI SIYAO, WANG JING, BAI JIEYIN, LIANG YE, SHAO LISONG, WANG CHUNYAN, WANG HAO, YAN TIANJIAO, LI HANG, LIAO LULIN, WU QUN
Принадлежит:

The invention discloses a unified security authentication method and system for a power regulation and control system, and the method comprises the steps: carrying out the network access authentication through a network access authentication client and an authentication center, and obtaining a network access authentication result sent by the authentication center; communicating with a network access authentication client by using a desktop module to obtain a network access authentication result, and opening a user login interface or directly exiting according to the network access authentication result; the desktop module and the authentication center are used for identity authentication, after authentication succeeds, the authentication center sends an identity label to the desktop module, and the desktop module stores the identity label; and the APP client is utilized to obtain the identity label from the desktop module, and then the service request and the identity label are sent to ...

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Номер записи: 2
28-05-2014 дата публикации

Carbon arc air gouging torch for narrow gap

Номер: CN103817397A
Автор: LIU XUSHOU, XIAO DEZHENG, DUAN SHIXIN, WU JIANYING, ZHAO CHAOHUI, LU LEISHENG, YAN ZHIWEI, LI YUANYUAN, WANG ZHIPING, YAN TIANJIAO, HOU XIAOCHONG, RAN NA
Принадлежит:

The invention discloses a carbon arc air gouging torch for a narrow gap. The carbon arc air gouging torch comprises a torch head, a torch body, an air inlet device and a conductive device. The torch head is formed by a hollow conductive rod and a nozzle fixedly arranged in the conductive rod. The torch body is of a hollow structure with the shape similar to an S, one end of the torch body is connected with the conductive rod in a welding mode, the other end of the torch body is connected with the air inlet device, the conductive device is arranged on the air inlet device in a sleeved mode, and the conductive device comprises a conductive clamp and a compression bolt used for compressing the conductive clamp. In the carbon arc air gouging torch, the torch body is small in diameter and is of the structure with the shape similar to the S, therefore, operation can be conducted in the narrow gap, and the working efficiency is improved. The nozzle is provided with a groove and a slit so that ...

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Номер записи: 3
28-05-2014 дата публикации

Welding technology of cutter heads and cutter holders of hard-rock tunnel boring machine

Номер: CN103817412A
Автор: QIAO YANLI, DUAN SHIXIN, XIAO DEZHENG, LI LIXIA, XIONG GUODONG, ZHAO CHAOHUI, HOU XIAOCHONG, LI YUANYUAN, YAN ZHIWEI, JI WEIWEI, RAN NA, YAN TIANJIAO
Принадлежит:

The invention discloses a welding technology of cutter heads and cutter holders of a hard-rock tunnel boring machine. The welding technology specifically includes the steps that (1) build-up welding is conducted on transition layers; (2) cutters are assembled in the cutter holders, and then the cutter holders are installed in cutter holder installation holes in cutter head panels in an embedded mode; (3) the cutter holders and the cutter head panels are assembled and adjusted until no error exists, the cutter holders and the cutter heads are reinforced in a point welding mode, and layering welding is conducted between the upper planes of the cutter holders and the cutter head panels; (4) after welding joints of the upper planes of the cutter holders and the cutter panels are welded and reinforced, reinforcing is conducted on welding joints between side plates in the cutter heads and the cutter holders. According to the welding technology, deformation generated by preheating before welding ...

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Номер записи: 4