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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 5. Отображено 5.
04-07-2012 дата публикации

Vanadium-nitrogen alloy preparation method for preventing fired alloy from being adhered and oxidized

Номер: CN0102168191B
Принадлежит:

The invention relates to the technical field of ferrous metallurgy, and relates to a vanadium-nitrogen alloy preparation method for preventing the fired alloy from being adhered and oxidized. The method comprises the following steps of: (1) mixing a vanadium-containing compound, an adhesive and a premixing carbon reducing agent, pressing into raw material balls, and naturally drying the raw material balls; and (2) mixing the raw material balls and a granular carbon reducing agent, continuously throwing into a shaft kiln of a medium-frequency induction furnace, aerating high-purity nitrogen, and charging and discharging once every 6 to 8 hours, wherein the step is divided into three stages, namely carbonization and nitridation, and cooling. In the method, the granular carbon reducing agentis added during the charging so as to ensure that the raw material balls are partitioned by using the granular carbon reducing agent, so that the heat transfer is improved to make the temperature increase ...

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08-08-2023 дата публикации

Model construction method and system for tunnel pipe gallery

Номер: CN116561840A
Принадлежит:

The invention discloses a model construction method and system for a tunnel pipe gallery, and relates to the technical field of building modeling, and the method comprises the following steps: obtaining the point cloud data of the tunnel pipe gallery, and constructing a next generation model of the tunnel pipe gallery according to the point cloud data; preprocessing the point cloud data, and drawing a topographic map of the tunnel pipe gallery according to the preprocessed point cloud data; and determining a vector polygon of the tunnel pipe gallery contour according to the topographic map and the electronic contour map of the tunnel pipe gallery, and adjusting details of the next generation model according to the vector polygon to obtain a target model. The application defines. According to the method, the next generation modeling technology is used for modeling the tunnel pipe gallery, the problem that high-precision operation of cable equipment dissection and scene simulation cannot ...

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21-07-2023 дата публикации

Self-leveling prefabricated assembly type pavement slab for airport pavement slab replacement

Номер: CN116463904A
Автор: ZHANG LIFANG, YE HAOQIANG
Принадлежит:

The invention provides a self-leveling prefabricated assembly type pavement slab for airport pavement slab replacement, which comprises a prefabricated slab adopting a profile steel frame, a reserved groove is arranged at the bottom corner of the prefabricated slab, and a leveling bolt is arranged in the reserved groove; the profile steel frame comprises upper angle steel and lower angle steel, the upper angle steel clings to the inner wall and the top wall of the reserved groove, and the lower angle steel is fixed on the ground; the leveling bolt comprises an upper screw rod, a lower screw rod and an adjusting nut, the upper screw rod is fixed with the upper angle steel, the lower screw rod is fixed with the lower angle steel, the upper screw rod and the lower screw rod are connected through the adjusting nut, and the adjusting nut is rotated to adjust the distance between the upper screw rod and the lower screw rod. The leveling bolt transmits force to a base layer through the profile ...

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10-06-2015 дата публикации

High-voltage cable puncturing device and puncturing method

Номер: CN104701782A
Принадлежит:

The invention discloses a high-voltage cable puncturing device and puncturing method. The high-voltage cable puncturing device comprises a cable fixing device fixed on a high-voltage cable, a steel nail for puncturing the high-voltage cable, and a puncturing drive device for driving the steel nail to puncture, the puncturing drive device comprises a shell fixed on a fixing support plate, a motor arranged on the shell, a control circuit board and a hydraulic oil cylinder, the piston rod of the hydraulic oil cylinder is fixed with the steel nail, the motor is electrically connected with the control circuit board and controlled to work by the control circuit board, the motor drives the hydraulic oil cylinder to work, and the hydraulic oil cylinder drives the steel nail to puncture the high-voltage cable. The high-voltage cable puncturing device and puncturing method use a wireless remote control mode to control the electric hydraulic puncturing device to work, the operation is safe and reliable ...

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31-08-2011 дата публикации

Vanadium-nitrogen alloy preparation method for preventing fired alloy from being adhered and oxidized

Номер: CN0102168191A
Принадлежит:

The invention relates to the technical field of ferrous metallurgy, and relates to a vanadium-nitrogen alloy preparation method for preventing the fired alloy from being adhered and oxidized. The method comprises the following steps of: (1) mixing a vanadium-containing compound, an adhesive and a premixing carbon reducing agent, pressing into raw material balls, and naturally drying the raw material balls; and (2) mixing the raw material balls and a granular carbon reducing agent, continuously throwing into a shaft kiln of a medium-frequency induction furnace, aerating high-purity nitrogen, and charging and discharging once every 6 to 8 hours, wherein the step is divided into three stages, namely carbonization and nitridation, and cooling. In the method, the granular carbon reducing agent is added during the charging so as to ensure that the raw material balls are partitioned by using the granular carbon reducing agent, so that the heat transfer is improved to make the temperature increase ...

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