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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 7. Отображено 7.
04-04-2023 дата публикации

Ionized layer disturbance propagation analysis method based on regular ground station and stationary satellite

Номер: CN115902944A
Принадлежит:

The invention discloses an ionosphere disturbance propagation analysis method based on a regular ground station and a stationary satellite, and the method comprises the steps: carrying out the calculation of a non-difference and non-combination PPP method based on the observation data of a Beidou GEO satellite and a corresponding auxiliary file, and obtaining a VTEC original sequence according to a single-layer projection model; filtering the VTEC original sequence to obtain a VTEC disturbance sequence, and obtaining latitude and longitude information of a puncture point formed by a ground station in combination with latitude and longitude information of the ground station; the distance between the puncture points is calculated, feature points of the VTEC disturbance sequence are selected, and the propagation time of ionized layer disturbance between the puncture points is calculated; and calculating the total propagation velocity of the ionosphere and the reference direction of disturbance ...

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22-04-2015 дата публикации

Cross-country all steel truck radical tire tread rubber and preparation method thereof

Номер: CN104530498A
Принадлежит:

The invention discloses cross-country all steel truck radical tire tread rubber and a preparation method thereof. The cross-country all steel truck radical tire tread rubber comprises the following components in parts by weight: 100 parts of natural rubber, 0-0.3 part of a peptizer, 30-50 parts of carbon black, 7-18 parts of white carbon black, 1-4 parts of a silane coupling agent, 3-5 parts of zinc oxide, 1-3 parts of stearic acid, 0.5-2 parts of protecting wax, 0.5-3 parts of a plasticizer A, 0.5-2.5 parts of an anti-aging agent 6PPD, 0.5-2 parts of an anti-aging agent RD, 1-2.5 parts of sulfur, 1-3 parts of an accelerant and 0-0.3 part of a scorch retarder. With the adoption of the carbon black and the white carbon black, the wear resistance and tear resistance of the tread can be guaranteed, and the tread rubber has low heat generation; and moreover, the cross-country all steel truck radical tire tread rubber disclosed by the invention has the advantages of high wear resistance, tear ...

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22-04-2015 дата публикации

All-steel load radial tire tread base rubber material and preparation method thereof

Номер: CN104530499A
Принадлежит:

The invention relates to an all-steel load radial tire tread base rubber material and a preparation method thereof. The base rubber material comprises the following raw materials in parts by weight: 100 parts of natural rubber, 0-0.3 part of a peptizer, 30-45 parts of carbon black, 7-18 parts of white carbon black, 1-4 parts of a silane coupling agent, 3-5 parts of zinc oxide, 1-3 parts of stearic acid, 1-3 parts of phenolic tackifying resin, 0.5-3 parts of petroleum resin, 0.5-2 parts of an anti-aging agent 6PPD, 0.5-2 parts of an anti-aging agent RD, 1-3 parts of sulfur, 0.8-3 parts of an accelerator and 0-0.3 part of a scorch retarder. Petroleum resin is added to improve the medium-term and long-term viscidity of a tire tread half member so that the tread is well bonded with belt layers during molding and the phenomenon of delamination of a tread crown is improved. The material disclosed by the invention has the advantages of good thermal resistance and aging resistance, low heat generation ...

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15-08-2023 дата публикации

Rainfall measuring device and system thereof

Номер: CN116594087A
Принадлежит:

The invention discloses a rainfall measuring device and system, and the device comprises a housing unit, a storage unit, and a triggering unit, and the housing unit comprises a housing, an upper cover, and an extension housing. The storage unit comprises an inner cylinder and a transmission part; the trigger unit comprises a connecting part and a trigger part; according to the device, the first transmission part and the second transmission part are arranged, the wave surfaces of the first transmission part and the second transmission part are kept attached through the elastic blocks on the side faces of the sliding blocks, when the inner barrel collects rainwater, the inner barrel slides downwards through the dead weight of the rainwater, so that the first contact end makes contact with the second contact end, and when the processing module senses that the first contact end makes contact with the second contact end, the first transmission part and the second transmission part make contact ...

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12-05-2023 дата публикации

Height adjusting device for mixed-flow water turbine

Номер: CN116105019A
Принадлежит:

The height adjusting device comprises a frame assembly, an adjusting assembly and a locking assembly, the frame assembly comprises a water inlet volute, a bracket and a base, the bracket is installed at the bottom of the water inlet volute, the base is installed at the bottom of the bracket, the adjusting assembly comprises a driving part, a supporting part and a lifting part, and the driving part is arranged at the top end of the base; the supporting piece is arranged at the upper end of the bracket, the lifting piece is arranged on the other side of the top end of the base, the locking assembly comprises a fastening piece and a driving piece, the fastening piece is arranged at the top end of the supporting piece, and the driving piece is arranged in the supporting piece. The adjusting assembly and the locking assembly are matched with each other to adjust the height of the water inlet worm gear and fix the water inlet worm gear after adjustment, so that the water inlet worm gear can adapt ...

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18-08-2023 дата публикации

Ground surface settlement monitoring device and method

Номер: CN116608825A
Принадлежит:

The invention relates to the technical field of regional ground surface settlement monitoring, in particular to a ground surface settlement monitoring device and method.The monitoring device comprises a measuring unit, a data processing unit and a data processing unit, the mounting unit comprises a first fixing part arranged at the top of one inner side part, a second fixing part arranged at the top of the other inner side part, and a connecting part arranged between the end part of the first fixing part and the end part of the second fixing part; the monitoring unit comprises a Beidou positioning module and a Beidou short message module, the Beidou positioning module and the Beidou short message module are arranged in the external measurement component, and when the Beidou positioning module cannot work, the settlement of the land around the tower can be monitored according to the relative displacement between the external measurement component and the internal measurement component; and ...

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30-05-2023 дата публикации

Primary frequency modulation grouping control method and system for hydroelectric generating set

Номер: CN116191461A
Принадлежит:

The invention discloses a primary frequency modulation grouping control method for a hydroelectric generating set, which comprises the following steps of: grouping according to the number of generating sets contained in a water diversion system, and determining a primary frequency modulation control unit; each primary frequency modulation control unit is configured with a set of primary frequency modulation grouping controller; the primary frequency modulation grouping controller calculates a primary frequency modulation target opening degree amplitude and a power amplitude of a group, and distributes loads after primary frequency modulation calculation; according to the arrangement of the water diversion system and the primary frequency modulation frequency disturbance regulation performance, a primary frequency modulation execution unit is selected, and primary frequency modulation grouping control is carried out on the generator set; in the primary frequency modulation group control, ...

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