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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 3. Отображено 3.
11-07-2023 дата публикации

Urban gas valve station pipeline risk fuzzy comprehensive evaluation method based on AHP

Номер: CN116415847A
Принадлежит:

The invention relates to an urban gas valve station pipeline risk fuzzy comprehensive evaluation method based on AHP, and the method comprises the steps: building an influence factor list; determining a pipeline failure possibility risk evaluation system; determining a pipeline failure consequence risk evaluation system; carrying out weight calculation by utilizing an analytic hierarchy process, and constructing a judgment matrix; calculating the weight of the risk factor; a fuzzy comprehensive evaluation model of the pipeline failure possibility is established, and the pipeline failure possibility P is obtained; establishing a fuzzy comprehensive evaluation model of the pipeline failure consequence to obtain a pipeline failure consequence C; and finally calculating a relative risk value G to obtain a risk level. According to the invention, quantitative evaluation of the urban gas valve station pipeline risk is realized. According to the method, the efficiency can be improved when a gate ...

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18-02-2009 дата публикации

Ground imbedded high-capacity optical cable connection box

Номер: CN0101369040A
Принадлежит:

The invention relates to a underground large capacity optical cable connecting box, which belongs to the optical cable transmission technique field. The connecting box includes a box body and a seal cover, and a cable inlet, an optical cable routing bracket, an optical cable core-strengthening fixed card, an optical fiber fixed card, a guide fiber groove, a fusion fiber tray, a jumping wire coil fiber case and the like are arranged in the box body. The cable inlet, the optical cable core-strengthening fixed card and the optical fiber fixed card are respectively positioned on the sidewall of the upper part of the box body. The optical cable routing bracket is positioned on the around wall of the upper part of the box body, and the fusion fiber tray is positioned on two opposite walls in the box body. The guide fiber groove is connected between the optical cable core strengthening fixed card and the fusion fiber tray, and jumping wire coil fiber case is arranged at one side of the fusion ...

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28-07-2010 дата публикации

Ground imbedded high-capacity optical cable connection box

Номер: CN0101369040B
Принадлежит:

The invention relates to an underground large capacity optical cable connecting box, which belongs to the optical cable transmission technique field. The connecting box includes a box body and a seal cover, and a cable inlet, an optical cable routing bracket, an optical cable core-strengthening fixed card, an optical fiber fixed card, a guide fiber groove, a fusion fiber tray, a jumping wire coilfiber case and the like are arranged in the box body. The cable inlet, the optical cable core-strengthening fixed card and the optical fiber fixed card are respectively positioned on the sidewall of the upper part of the box body. The optical cable routing bracket is positioned on the peripheral wall of the upper part of the box body, and the fusion fiber tray is positioned on two opposite walls in the box body. The guide fiber groove is connected between the optical cable core-strengthening fixed card and the fusion fiber tray, and the jumping wire coil fiber case is arranged at one side of the ...

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