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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 6. Отображено 6.
07-04-2023 дата публикации

Analysis method for considering influence of relative humidity on performance of catalytic layer of fuel cell

Номер: CN115935765A
Принадлежит:

The invention provides an analysis method for considering the influence of relative humidity on the performance of a catalytic layer of a fuel cell, which comprises the following steps of: calculating corresponding reaction rates by adopting a Pt dissolution precipitation and Pt oxidation rate equation deduced based on an Eyring-Polanyi equation so as to calculate the change of particle diameter and oxide coverage rate in each time step; the change of the microstructure of the catalyst layer comprises the average diameter of Pt particles, the effective catalytic area of Pt and the coverage rate of oxide, the change is transmitted to a performance calculation module to obtain the performance after aging and the distribution of each physical field in the battery, such as temperature, water vapor concentration and overpotential, and then the physical field distribution information is transmitted back to an aging prediction module for aging calculation. And finally calculating the aging condition ...

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10-06-2015 дата публикации

Representing method of intelligent substation optical fiber link

Номер: CN104701981A
Принадлежит:

Disclosed is a representing method of an intelligent substation optical fiber link. The representing method of the intelligent substation optical fiber link includes: using Microsoft Excel to produce an optical identification information data worksheet on a computer according to a design drawing and field practical construction situations; representing the intelligent substation optical fiber link according to following rules: a) if the intelligent substation optical fiber link is linked through tail fibers, directly writing words 'tail fiber'; b) if the intelligent substation optical fiber link is linked through optical cables, writing words 'ODF: N/N-optical cable number-ODF:N:N/N', and if using words 'prefabrication' to replace the words 'ODF:N:N/N', representing that the optical cable at the end does not need field butt fusion, and is a prefabricated optical cable with a customized optical fiber head, wherein ODF represents an optical melt fiber disk, N represents the number of the ...

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26-02-2014 дата публикации

SCD (substation configuration description) file management system

Номер: CN103605705A
Принадлежит:

The invention discloses a substation configuration description file management system which mainly comprises an application layer, a foundation service layer and a system layer. The application layer has functions of document collaborative portals, document storage, document creation, document retrieval, document collaboration and document safety management; the foundation service layer has functions of storage services, safety services, process services, management services, searching and extended services; the system layer comprises a Web server, provides a plurality of safety authentication modes including authentication services for encryption authentication and certificate authentication, stores organization and personnel information of enterprises by the aid of active directories of the Microsoft and brings convenience for directory services for query, retrieval and unified authentication, and SCD (substation configuration description) files are inputted in the Web server. The substation ...

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26-02-2014 дата публикации

High voltage test on-site safety management control auxiliary system and management control method

Номер: CN103605337A
Принадлежит:

The invention discloses a high voltage test on-site safety management control auxiliary system and management control method. The system is composed of a main control box with a system state display, four boundary violation signal generation devices which are dispersed at four monitoring points in a high voltage test process, and four hand-held terminals, wherein the main control box and the hand-held terminals are internally provided with wireless transmit-receive modules capable of mutually sending or receiving information respectively; and the boundary violation signal generation devices mainly comprise power source power supply circuits, wireless communication circuits and acousto-optic alarm circuits. During the high voltage test process, monitoring personnel distributed at important monitoring points each manage one terminal and send state signals to the main control box through specific buttons on the terminals; the main control box, according to the received signals, performs corresponding ...

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07-04-2023 дата публикации

Uniform heat dissipation device for air-cooled fuel cell

Номер: CN115939444A
Принадлежит:

The invention provides an air-cooled fuel cell uniform heat dissipation device, which comprises a fan, an air outlet of the fan is provided with a spoiler, the main body of the spoiler is a circular plate, the circle center of the spoiler is provided with an axis hole, a plurality of circles of outer edge holes corresponding to the center of the circular plate are distributed on the outer side of the axis hole, and the diameter of the axis hole is greater than that of the outer edge hole. And the diameters of the outer edge holes are sequentially reduced from the center of the circular plate to the outer edge. According to the distribution characteristics of the air outlet volume of the fan, the reasonably designed porous spoiler is additionally arranged between the air outlet of the fan and the electric pile, so that the air inlet volume of the axis of the fan is remarkably increased, the air volume is uniformly distributed in front of the electric pile, and the air volumes of the air ...

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04-04-2023 дата публикации

Connection device for switch cabinet transfer

Номер: CN115912146A
Принадлежит:

The invention discloses a connection device for switch cabinet transfer, which comprises a plurality of conveying rollers arranged in sequence, supporting frames are arranged on two axial sides of the conveying rollers, the conveying rollers and the supporting frames form a conveying track, one end of the conveying track is a starting end, the other end of the conveying track is a tail end, the conveying rollers are connected with a driving motor, and a tail end baffle is arranged at the tail end of the conveying track. Wherein one supporting frame is provided with a side stopping strip, the side stopping strip is higher than the top face of the conveying roller, the supporting frame is provided with a starting switch and an in-place sensor, the in-place sensor is close to one side of the tail end baffle, and the starting switch and the in-place sensor are electrically connected with a driving motor through a plc. The conveying device can be used for connecting the switch cabinet in the ...

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